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gerrit.omnirom.org / android_external_vim / d2f49879990407b209f39397b9880f91f851a49a / . / src / gui_gtk_x11.c
blob: 67ee531b6f573d9ac9bcab79387a5ee9adde36eb [file] [log] [blame]
/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* Porting to GTK+ was done by:
*
* (C) 1998,1999,2000 by Marcin Dalecki <martin@dalecki.de>
*
* With GREAT support and continuous encouragements by Andy Kahn and of
* course Bram Moolenaar!
*
* Support for GTK+ 2 was added by:
*
* (C) 2002,2003 Jason Hildebrand <jason@peaceworks.ca>
* Daniel Elstner <daniel.elstner@gmx.net>
*
* Support for GTK+ 3 was added by:
*
* 2016 Kazunobu Kuriyama <kazunobu.kuriyama@gmail.com>
*/
#include "vim.h"
#ifdef USE_GRESOURCE
#include "auto/gui_gtk_gresources.h"
#endif
#ifdef FEAT_GUI_GNOME
// Gnome redefines _() and N_(). Grrr...
# ifdef _
# undef _
# endif
# ifdef N_
# undef N_
# endif
# ifdef textdomain
# undef textdomain
# endif
# ifdef bindtextdomain
# undef bindtextdomain
# endif
# ifdef bind_textdomain_codeset
# undef bind_textdomain_codeset
# endif
# if defined(FEAT_GETTEXT) && !defined(ENABLE_NLS)
# define ENABLE_NLS // so the texts in the dialog boxes are translated
# endif
# include <gnome.h>
# include "version.h"
// missing prototype in bonobo-dock-item.h
extern void bonobo_dock_item_set_behavior(BonoboDockItem *dock_item, BonoboDockItemBehavior beh);
#endif
#if !defined(FEAT_GUI_GTK) && defined(PROTO)
// When generating prototypes we don't want syntax errors.
# define GdkAtom int
# define GdkEventExpose int
# define GdkEventFocus int
# define GdkEventVisibility int
# define GdkEventProperty int
# define GtkContainer int
# define GtkTargetEntry int
# define GtkType int
# define GtkWidget int
# define gint int
# define gpointer int
# define guint int
# define GdkEventKey int
# define GdkEventSelection int
# define GtkSelectionData int
# define GdkEventMotion int
# define GdkEventButton int
# define GdkDragContext int
# define GdkEventConfigure int
# define GdkEventClient int
#else
# if GTK_CHECK_VERSION(3,0,0)
# include <gdk/gdkkeysyms-compat.h>
# include <gtk/gtkx.h>
# else
# include <gdk/gdkkeysyms.h>
# endif
# include <gdk/gdk.h>
# ifdef MSWIN
# include <gdk/gdkwin32.h>
# else
# include <gdk/gdkx.h>
# endif
# include <gtk/gtk.h>
# include "gui_gtk_f.h"
#endif
#ifdef HAVE_X11_SUNKEYSYM_H
# include <X11/Sunkeysym.h>
#endif
/*
* Easy-to-use macro for multihead support.
*/
#define GET_X_ATOM(atom) gdk_x11_atom_to_xatom_for_display( \
gtk_widget_get_display(gui.mainwin), atom)
// Selection type distinguishers
enum
{
TARGET_TYPE_NONE,
TARGET_UTF8_STRING,
TARGET_STRING,
TARGET_COMPOUND_TEXT,
TARGET_HTML,
TARGET_TEXT,
TARGET_TEXT_URI_LIST,
TARGET_TEXT_PLAIN,
TARGET_TEXT_PLAIN_UTF8,
TARGET_VIM,
TARGET_VIMENC
};
/*
* Table of selection targets supported by Vim.
* Note: Order matters, preferred types should come first.
*/
static const GtkTargetEntry selection_targets[] =
{
{VIMENC_ATOM_NAME, 0, TARGET_VIMENC},
{VIM_ATOM_NAME, 0, TARGET_VIM},
{"text/html", 0, TARGET_HTML},
{"UTF8_STRING", 0, TARGET_UTF8_STRING},
{"COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT},
{"TEXT", 0, TARGET_TEXT},
{"STRING", 0, TARGET_STRING},
{"text/plain;charset=utf-8", 0, TARGET_TEXT_PLAIN_UTF8},
{"text/plain", 0, TARGET_TEXT_PLAIN}
};
#define N_SELECTION_TARGETS ARRAY_LENGTH(selection_targets)
#ifdef FEAT_DND
/*
* Table of DnD targets supported by Vim.
* Note: Order matters, preferred types should come first.
*/
static const GtkTargetEntry dnd_targets[] =
{
{"text/uri-list", 0, TARGET_TEXT_URI_LIST},
{"text/html", 0, TARGET_HTML},
{"UTF8_STRING", 0, TARGET_UTF8_STRING},
{"STRING", 0, TARGET_STRING},
{"text/plain", 0, TARGET_TEXT_PLAIN}
};
# define N_DND_TARGETS ARRAY_LENGTH(dnd_targets)
#endif
/*
* "Monospace" is a standard font alias that should be present
* on all proper Pango/fontconfig installations.
*/
# define DEFAULT_FONT "Monospace 10"
#if defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION)
# define USE_GNOME_SESSION
#endif
#if !defined(FEAT_GUI_GNOME)
/*
* Atoms used to communicate save-yourself from the X11 session manager. There
* is no need to move them into the GUI struct, since they should be constant.
*/
static GdkAtom wm_protocols_atom = GDK_NONE;
static GdkAtom save_yourself_atom = GDK_NONE;
#endif
/*
* Atoms used to control/reference X11 selections.
*/
static GdkAtom html_atom = GDK_NONE;
static GdkAtom utf8_string_atom = GDK_NONE;
static GdkAtom vim_atom = GDK_NONE; // Vim's own special selection format
static GdkAtom vimenc_atom = GDK_NONE; // Vim's extended selection format
/*
* Keycodes recognized by vim.
* NOTE: when changing this, the table in gui_x11.c probably needs the same
* change!
*/
static struct special_key
{
guint key_sym;
char_u code0;
char_u code1;
}
const special_keys[] =
{
{GDK_Up, 'k', 'u'},
{GDK_Down, 'k', 'd'},
{GDK_Left, 'k', 'l'},
{GDK_Right, 'k', 'r'},
{GDK_F1, 'k', '1'},
{GDK_F2, 'k', '2'},
{GDK_F3, 'k', '3'},
{GDK_F4, 'k', '4'},
{GDK_F5, 'k', '5'},
{GDK_F6, 'k', '6'},
{GDK_F7, 'k', '7'},
{GDK_F8, 'k', '8'},
{GDK_F9, 'k', '9'},
{GDK_F10, 'k', ';'},
{GDK_F11, 'F', '1'},
{GDK_F12, 'F', '2'},
{GDK_F13, 'F', '3'},
{GDK_F14, 'F', '4'},
{GDK_F15, 'F', '5'},
{GDK_F16, 'F', '6'},
{GDK_F17, 'F', '7'},
{GDK_F18, 'F', '8'},
{GDK_F19, 'F', '9'},
{GDK_F20, 'F', 'A'},
{GDK_F21, 'F', 'B'},
{GDK_Pause, 'F', 'B'}, // Pause == F21 according to netbeans.txt
{GDK_F22, 'F', 'C'},
{GDK_F23, 'F', 'D'},
{GDK_F24, 'F', 'E'},
{GDK_F25, 'F', 'F'},
{GDK_F26, 'F', 'G'},
{GDK_F27, 'F', 'H'},
{GDK_F28, 'F', 'I'},
{GDK_F29, 'F', 'J'},
{GDK_F30, 'F', 'K'},
{GDK_F31, 'F', 'L'},
{GDK_F32, 'F', 'M'},
{GDK_F33, 'F', 'N'},
{GDK_F34, 'F', 'O'},
{GDK_F35, 'F', 'P'},
#ifdef SunXK_F36
{SunXK_F36, 'F', 'Q'},
{SunXK_F37, 'F', 'R'},
#endif
{GDK_Help, '%', '1'},
{GDK_Undo, '&', '8'},
{GDK_BackSpace, 'k', 'b'},
{GDK_Insert, 'k', 'I'},
{GDK_Delete, 'k', 'D'},
{GDK_3270_BackTab, 'k', 'B'},
{GDK_Clear, 'k', 'C'},
{GDK_Home, 'k', 'h'},
{GDK_End, '@', '7'},
{GDK_Prior, 'k', 'P'},
{GDK_Next, 'k', 'N'},
{GDK_Print, '%', '9'},
// Keypad keys:
{GDK_KP_Left, 'k', 'l'},
{GDK_KP_Right, 'k', 'r'},
{GDK_KP_Up, 'k', 'u'},
{GDK_KP_Down, 'k', 'd'},
{GDK_KP_Insert, KS_EXTRA, (char_u)KE_KINS},
{GDK_KP_Delete, KS_EXTRA, (char_u)KE_KDEL},
{GDK_KP_Home, 'K', '1'},
{GDK_KP_End, 'K', '4'},
{GDK_KP_Prior, 'K', '3'}, // page up
{GDK_KP_Next, 'K', '5'}, // page down
{GDK_KP_Add, 'K', '6'},
{GDK_KP_Subtract, 'K', '7'},
{GDK_KP_Divide, 'K', '8'},
{GDK_KP_Multiply, 'K', '9'},
{GDK_KP_Enter, 'K', 'A'},
{GDK_KP_Decimal, 'K', 'B'},
{GDK_KP_0, 'K', 'C'},
{GDK_KP_1, 'K', 'D'},
{GDK_KP_2, 'K', 'E'},
{GDK_KP_3, 'K', 'F'},
{GDK_KP_4, 'K', 'G'},
{GDK_KP_5, 'K', 'H'},
{GDK_KP_6, 'K', 'I'},
{GDK_KP_7, 'K', 'J'},
{GDK_KP_8, 'K', 'K'},
{GDK_KP_9, 'K', 'L'},
// End of list marker:
{0, 0, 0}
};
/*
* Flags for command line options table below.
*/
#define ARG_FONT 1
#define ARG_GEOMETRY 2
#define ARG_REVERSE 3
#define ARG_NOREVERSE 4
#define ARG_BACKGROUND 5
#define ARG_FOREGROUND 6
#define ARG_ICONIC 7
#define ARG_ROLE 8
#define ARG_NETBEANS 9
#define ARG_XRM 10 // ignored
#define ARG_MENUFONT 11 // ignored
#define ARG_INDEX_MASK 0x00ff
#define ARG_HAS_VALUE 0x0100 // a value is expected after the argument
#define ARG_NEEDS_GUI 0x0200 // need to initialize the GUI for this
#define ARG_FOR_GTK 0x0400 // argument is handled by GTK+ or GNOME
#define ARG_COMPAT_LONG 0x0800 // accept -foo but substitute with --foo
#define ARG_KEEP 0x1000 // don't remove argument from argv[]
/*
* This table holds all the X GUI command line options allowed. This includes
* the standard ones so that we can skip them when Vim is started without the
* GUI (but the GUI might start up later).
*
* When changing this, also update doc/gui_x11.txt and the usage message!!!
*/
typedef struct
{
const char *name;
unsigned int flags;
}
cmdline_option_T;
static const cmdline_option_T cmdline_options[] =
{
// We handle these options ourselves
{"-fn", ARG_FONT|ARG_HAS_VALUE},
{"-font", ARG_FONT|ARG_HAS_VALUE},
{"-geom", ARG_GEOMETRY|ARG_HAS_VALUE},
{"-geometry", ARG_GEOMETRY|ARG_HAS_VALUE},
{"-rv", ARG_REVERSE},
{"-reverse", ARG_REVERSE},
{"+rv", ARG_NOREVERSE},
{"+reverse", ARG_NOREVERSE},
{"-bg", ARG_BACKGROUND|ARG_HAS_VALUE},
{"-background", ARG_BACKGROUND|ARG_HAS_VALUE},
{"-fg", ARG_FOREGROUND|ARG_HAS_VALUE},
{"-foreground", ARG_FOREGROUND|ARG_HAS_VALUE},
{"-iconic", ARG_ICONIC},
{"--role", ARG_ROLE|ARG_HAS_VALUE},
#ifdef FEAT_NETBEANS_INTG
{"-nb", ARG_NETBEANS}, // non-standard value format
{"-xrm", ARG_XRM|ARG_HAS_VALUE}, // not implemented
{"-mf", ARG_MENUFONT|ARG_HAS_VALUE}, // not implemented
{"-menufont", ARG_MENUFONT|ARG_HAS_VALUE}, // not implemented
#endif
// Arguments handled by GTK (and GNOME) internally.
{"--g-fatal-warnings", ARG_FOR_GTK},
{"--gdk-debug", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gdk-no-debug", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gtk-debug", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gtk-no-debug", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gtk-module", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--sync", ARG_FOR_GTK},
{"--display", ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG},
{"--name", ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG},
{"--class", ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG},
{"--screen", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gxid-host", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--gxid-port", ARG_FOR_GTK|ARG_HAS_VALUE},
#ifdef FEAT_GUI_GNOME
{"--load-modules", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--sm-client-id", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--sm-config-prefix", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--sm-disable", ARG_FOR_GTK},
{"--oaf-ior-fd", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--oaf-activate-iid", ARG_FOR_GTK|ARG_HAS_VALUE},
{"--oaf-private", ARG_FOR_GTK},
{"--enable-sound", ARG_FOR_GTK},
{"--disable-sound", ARG_FOR_GTK},
{"--espeaker", ARG_FOR_GTK|ARG_HAS_VALUE},
{"-?", ARG_FOR_GTK|ARG_NEEDS_GUI},
{"--help", ARG_FOR_GTK|ARG_NEEDS_GUI|ARG_KEEP},
{"--usage", ARG_FOR_GTK|ARG_NEEDS_GUI},
# if 0 // conflicts with Vim's own --version argument
{"--version", ARG_FOR_GTK|ARG_NEEDS_GUI},
# endif
{"--disable-crash-dialog", ARG_FOR_GTK},
#endif
{NULL, 0}
};
static int gui_argc = 0;
static char **gui_argv = NULL;
static const char *role_argument = NULL;
#if defined(USE_GNOME_SESSION)
static const char *restart_command = NULL;
static char *abs_restart_command = NULL;
#endif
static int found_iconic_arg = FALSE;
#ifdef FEAT_GUI_GNOME
/*
* Can't use Gnome if --socketid given
*/
static int using_gnome = 0;
#else
# define using_gnome 0
#endif
// Comment out the following line to ignore code for resize history tracking.
#define TRACK_RESIZE_HISTORY
#ifdef TRACK_RESIZE_HISTORY
/*
* Keep a short term resize history so that stale gtk responses can be
* discarded.
* When a gtk_window_resize() request is sent to gtk, the width/height of
* the request is saved. Recent stale requests are kept around in a list.
* See https://github.com/vim/vim/issues/10123
*/
# if 0 // Change to 1 to enable ch_log() calls for debugging.
# ifdef FEAT_EVAL
# define ENABLE_RESIZE_HISTORY_LOG
# endif
# endif
/*
* History item of a resize request.
* Width and height are of gui.mainwin.
*/
typedef struct resize_history {
int used; // If true, can't match for discard. Only matches once.
int width;
int height;
# ifdef ENABLE_RESIZE_HISTORY_LOG
int seq; // for ch_log messages
# endif
struct resize_history *next;
} resize_hist_T;
// never NULL during execution
static resize_hist_T *latest_resize_hist;
// list of stale resize requests
static resize_hist_T *old_resize_hists;
/*
* Used when calling gtk_window_resize().
* Create a resize request history item, put previous request on stale list.
* Width/height are the size of the request for the gui.mainwin.
*/
static void
alloc_resize_hist(int width, int height)
{
// alloc a new resize hist, save current in list of old history
resize_hist_T *prev_hist = latest_resize_hist;
resize_hist_T *new_hist = ALLOC_CLEAR_ONE(resize_hist_T);
new_hist->width = width;
new_hist->height = height;
latest_resize_hist = new_hist;
// previous hist item becomes head of list
prev_hist->next = old_resize_hists;
old_resize_hists = prev_hist;
# ifdef ENABLE_RESIZE_HISTORY_LOG
new_hist->seq = prev_hist->seq + 1;
ch_log(NULL, "gui_gtk: New resize seq %d (%d, %d) [%d, %d]",
new_hist->seq, width, height, (int)Columns, (int)Rows);
# endif
}
/*
* Free everything on the stale resize history list.
* This list is empty when there are no outstanding resize requests.
*/
static void
clear_resize_hists(void)
{
# ifdef ENABLE_RESIZE_HISTORY_LOG
int i = 0;
# endif
if (latest_resize_hist)
latest_resize_hist->used = TRUE;
while (old_resize_hists != NULL)
{
resize_hist_T *next_hist = old_resize_hists->next;
vim_free(old_resize_hists);
old_resize_hists = next_hist;
# ifdef ENABLE_RESIZE_HISTORY_LOG
i++;
# endif
}
# ifdef ENABLE_RESIZE_HISTORY_LOG
ch_log(NULL, "gui_gtk: free %d hists", i);
# endif
}
// true if hist item is unused and matches w,h
# define MATCH_WIDTH_HEIGHT(hist, w, h) \
(!hist->used && hist->width == w && hist->height == h)
/*
* Search the resize hist list.
* Return true if the specified width,height match an item in the list that
* has never matched before. Mark the matching item as used so it will
* not match again.
*/
static int
match_stale_width_height(int width, int height)
{
resize_hist_T *hist = old_resize_hists;
for (hist = old_resize_hists; hist != NULL; hist = hist->next)
if (MATCH_WIDTH_HEIGHT(hist, width, height))
{
# ifdef ENABLE_RESIZE_HISTORY_LOG
ch_log(NULL, "gui_gtk: discard seq %d, cur seq %d",
hist->seq, latest_resize_hist->seq);
# endif
hist->used = TRUE;
return TRUE;
}
return FALSE;
}
# if defined(EXITFREE)
static void
free_all_resize_hist(void)
{
clear_resize_hists();
vim_free(latest_resize_hist);
}
# endif
#endif
/*
* GTK doesn't set the GDK_BUTTON1_MASK state when dragging a touch. Add this
* state when dragging.
*/
static guint dragging_button_state = 0;
/*
* Parse the GUI related command-line arguments. Any arguments used are
* deleted from argv, and *argc is decremented accordingly. This is called
* when vim is started, whether or not the GUI has been started.
*/
void
gui_mch_prepare(int *argc, char **argv)
{
const cmdline_option_T *option;
int i = 0;
int len = 0;
#if defined(USE_GNOME_SESSION)
/*
* Determine the command used to invoke Vim, to be passed as restart
* command to the session manager. If argv[0] contains any directory
* components try building an absolute path, otherwise leave it as is.
*/
restart_command = argv[0];
if (strchr(argv[0], G_DIR_SEPARATOR) != NULL)
{
char_u buf[MAXPATHL];
if (mch_FullName((char_u *)argv[0], buf, (int)sizeof(buf), TRUE) == OK)
{
abs_restart_command = (char *)vim_strsave(buf);
restart_command = abs_restart_command;
}
}
#endif
/*
* Move all the entries in argv which are relevant to GTK+ and GNOME
* into gui_argv. Freed later in gui_mch_init().
*/
gui_argc = 0;
gui_argv = ALLOC_MULT(char *, *argc + 1);
g_return_if_fail(gui_argv != NULL);
gui_argv[gui_argc++] = argv[i++];
while (i < *argc)
{
// Don't waste CPU cycles on non-option arguments.
if (argv[i][0] != '-' && argv[i][0] != '+')
{
++i;
continue;
}
// Look for argv[i] in cmdline_options[] table.
for (option = &cmdline_options[0]; option->name != NULL; ++option)
{
len = strlen(option->name);
if (strncmp(argv[i], option->name, len) == 0)
{
if (argv[i][len] == '\0')
break;
// allow --foo=bar style
if (argv[i][len] == '=' && (option->flags & ARG_HAS_VALUE))
break;
#ifdef FEAT_NETBEANS_INTG
// darn, -nb has non-standard syntax
if (vim_strchr((char_u *)":=", argv[i][len]) != NULL
&& (option->flags & ARG_INDEX_MASK) == ARG_NETBEANS)
break;
#endif
}
else if ((option->flags & ARG_COMPAT_LONG)
&& strcmp(argv[i], option->name + 1) == 0)
{
// Replace the standard X arguments "-name" and "-display"
// with their GNU-style long option counterparts.
argv[i] = (char *)option->name;
break;
}
}
if (option->name == NULL) // no match
{
++i;
continue;
}
if (option->flags & ARG_FOR_GTK)
{
// Move the argument into gui_argv, which
// will later be passed to gtk_init_check()
gui_argv[gui_argc++] = argv[i];
}
else
{
char *value = NULL;
// Extract the option's value if there is one.
// Accept both "--foo bar" and "--foo=bar" style.
if (option->flags & ARG_HAS_VALUE)
{
if (argv[i][len] == '=')
value = &argv[i][len + 1];
else if (i + 1 < *argc && strcmp(argv[i + 1], "--") != 0)
value = argv[i + 1];
}
// Check for options handled by Vim itself
switch (option->flags & ARG_INDEX_MASK)
{
case ARG_REVERSE:
found_reverse_arg = TRUE;
break;
case ARG_NOREVERSE:
found_reverse_arg = FALSE;
break;
case ARG_FONT:
font_argument = value;
break;
case ARG_GEOMETRY:
if (value != NULL)
gui.geom = vim_strsave((char_u *)value);
break;
case ARG_BACKGROUND:
background_argument = value;
break;
case ARG_FOREGROUND:
foreground_argument = value;
break;
case ARG_ICONIC:
found_iconic_arg = TRUE;
break;
case ARG_ROLE:
role_argument = value; // used later in gui_mch_open()
break;
#ifdef FEAT_NETBEANS_INTG
case ARG_NETBEANS:
gui.dofork = FALSE; // don't fork() when starting GUI
netbeansArg = argv[i];
break;
#endif
default:
break;
}
}
// These arguments make gnome_program_init() print a message and exit.
// Must start the GUI for this, otherwise ":gui" will exit later!
// Only when the GUI can start.
if ((option->flags & ARG_NEEDS_GUI)
&& gui_mch_early_init_check(FALSE) == OK)
gui.starting = TRUE;
if (option->flags & ARG_KEEP)
++i;
else
{
// Remove the flag from the argument vector.
if (--*argc > i)
{
int n_strip = 1;
// Move the argument's value as well, if there is one.
if ((option->flags & ARG_HAS_VALUE)
&& argv[i][len] != '='
&& strcmp(argv[i + 1], "--") != 0)
{
++n_strip;
--*argc;
if (option->flags & ARG_FOR_GTK)
gui_argv[gui_argc++] = argv[i + 1];
}
if (*argc > i)
mch_memmove(&argv[i], &argv[i + n_strip],
(*argc - i) * sizeof(char *));
}
argv[*argc] = NULL;
}
}
gui_argv[gui_argc] = NULL;
}
#if defined(EXITFREE) || defined(PROTO)
void
gui_mch_free_all(void)
{
vim_free(gui_argv);
#if defined(USE_GNOME_SESSION)
vim_free(abs_restart_command);
#endif
#ifdef TRACK_RESIZE_HISTORY
free_all_resize_hist();
#endif
}
#endif
#if !GTK_CHECK_VERSION(3,0,0)
/*
* This should be maybe completely removed.
* Doesn't seem possible, since check_copy_area() relies on
* this information. --danielk
*/
static gint
visibility_event(GtkWidget *widget UNUSED,
GdkEventVisibility *event,
gpointer data UNUSED)
{
gui.visibility = event->state;
/*
* When we do an gdk_window_copy_area(), and the window is partially
* obscured, we want to receive an event to tell us whether it worked
* or not.
*/
if (gui.text_gc != NULL)
gdk_gc_set_exposures(gui.text_gc,
gui.visibility != GDK_VISIBILITY_UNOBSCURED);
return FALSE;
}
#endif // !GTK_CHECK_VERSION(3,0,0)
/*
* Redraw the corresponding portions of the screen.
*/
#if GTK_CHECK_VERSION(3,0,0)
static gboolean
draw_event(GtkWidget *widget UNUSED,
cairo_t *cr,
gpointer user_data UNUSED)
{
// Skip this when the GUI isn't set up yet, will redraw later.
if (gui.starting)
return FALSE;
out_flush(); // make sure all output has been processed
// for GTK+ 3, may induce other draw events.
cairo_set_source_surface(cr, gui.surface, 0, 0);
{
cairo_rectangle_list_t *list = NULL;
list = cairo_copy_clip_rectangle_list(cr);
if (list->status != CAIRO_STATUS_CLIP_NOT_REPRESENTABLE)
{
int i;
for (i = 0; i < list->num_rectangles; i++)
{
const cairo_rectangle_t *rect = &list->rectangles[i];
cairo_rectangle(cr, rect->x, rect->y,
rect->width, rect->height);
cairo_fill(cr);
}
}
cairo_rectangle_list_destroy(list);
}
return FALSE;
}
# if GTK_CHECK_VERSION(3,10,0)
static gboolean
scale_factor_event(GtkWidget *widget,
GParamSpec* pspec UNUSED,
gpointer user_data UNUSED)
{
if (gui.surface != NULL)
cairo_surface_destroy(gui.surface);
int w, h;
gtk_window_get_size(GTK_WINDOW(gui.mainwin), &w, &h);
gui.surface = gdk_window_create_similar_surface(
gtk_widget_get_window(widget),
CAIRO_CONTENT_COLOR_ALPHA,
w, h);
int usable_height = h;
if (gtk_socket_id != 0)
usable_height -= (gui.char_height - (gui.char_height/2)); // sic.
gui_gtk_form_freeze(GTK_FORM(gui.formwin));
gui.force_redraw = 1;
gui_resize_shell(w, usable_height);
gui_gtk_form_thaw(GTK_FORM(gui.formwin));
return TRUE;
}
# endif // GTK_CHECK_VERSION(3,10,0)
#else // !GTK_CHECK_VERSION(3,0,0)
static gint
expose_event(GtkWidget *widget UNUSED,
GdkEventExpose *event,
gpointer data UNUSED)
{
// Skip this when the GUI isn't set up yet, will redraw later.
if (gui.starting)
return FALSE;
out_flush(); // make sure all output has been processed
gui_redraw(event->area.x, event->area.y,
event->area.width, event->area.height);
// Clear the border areas if needed
if (event->area.x < FILL_X(0))
gdk_window_clear_area(gui.drawarea->window, 0, 0, FILL_X(0), 0);
if (event->area.y < FILL_Y(0))
gdk_window_clear_area(gui.drawarea->window, 0, 0, 0, FILL_Y(0));
if (event->area.x > FILL_X(Columns))
gdk_window_clear_area(gui.drawarea->window,
FILL_X((int)Columns), 0, 0, 0);
if (event->area.y > FILL_Y(Rows))
gdk_window_clear_area(gui.drawarea->window, 0, FILL_Y((int)Rows), 0, 0);
return FALSE;
}
#endif // !GTK_CHECK_VERSION(3,0,0)
#ifdef FEAT_CLIENTSERVER
/*
* Handle changes to the "Comm" property
*/
static gint
property_event(GtkWidget *widget,
GdkEventProperty *event,
gpointer data UNUSED)
{
if (event->type == GDK_PROPERTY_NOTIFY
&& event->state == (int)GDK_PROPERTY_NEW_VALUE
&& GDK_WINDOW_XID(event->window) == commWindow
&& GET_X_ATOM(event->atom) == commProperty)
{
XEvent xev;
// Translate to XLib
xev.xproperty.type = PropertyNotify;
xev.xproperty.atom = commProperty;
xev.xproperty.window = commWindow;
xev.xproperty.state = PropertyNewValue;
serverEventProc(GDK_WINDOW_XDISPLAY(gtk_widget_get_window(widget)),
&xev, 0);
}
return FALSE;
}
#endif // defined(FEAT_CLIENTSERVER)
/*
* Handle changes to the "Xft/DPI" setting
*/
static void
gtk_settings_xft_dpi_changed_cb(GtkSettings *gtk_settings UNUSED,
GParamSpec *pspec UNUSED,
gpointer data UNUSED)
{
// Create a new PangoContext for this screen, and initialize it
// with the current font if necessary.
if (gui.text_context != NULL)
g_object_unref(gui.text_context);
gui.text_context = gtk_widget_create_pango_context(gui.mainwin);
pango_context_set_base_dir(gui.text_context, PANGO_DIRECTION_LTR);
if (gui.norm_font != NULL)
{
// force default font
gui_mch_init_font(*p_guifont == NUL ? NULL : p_guifont, FALSE);
gui_set_shellsize(TRUE, FALSE, RESIZE_BOTH);
}
}
typedef gboolean timeout_cb_type;
/*
* Start a timer that will invoke the specified callback.
* Returns the ID of the timer.
*/
static guint
timeout_add(int time, timeout_cb_type (*callback)(gpointer), int *flagp)
{
return g_timeout_add((guint)time, (GSourceFunc)callback, flagp);
}
static void
timeout_remove(guint timer)
{
g_source_remove(timer);
}
/////////////////////////////////////////////////////////////////////////////
// Focus handlers:
/*
* This is a simple state machine:
* BLINK_NONE not blinking at all
* BLINK_OFF blinking, cursor is not shown
* BLINK_ON blinking, cursor is shown
*/
#define BLINK_NONE 0
#define BLINK_OFF 1
#define BLINK_ON 2
static int blink_state = BLINK_NONE;
static long_u blink_waittime = 700;
static long_u blink_ontime = 400;
static long_u blink_offtime = 250;
static guint blink_timer = 0;
int
gui_mch_is_blinking(void)
{
return blink_state != BLINK_NONE;
}
int
gui_mch_is_blink_off(void)
{
return blink_state == BLINK_OFF;
}
void
gui_mch_set_blinking(long waittime, long on, long off)
{
blink_waittime = waittime;
blink_ontime = on;
blink_offtime = off;
}
/*
* Stop the cursor blinking. Show the cursor if it wasn't shown.
*/
void
gui_mch_stop_blink(int may_call_gui_update_cursor)
{
if (blink_timer)
{
timeout_remove(blink_timer);
blink_timer = 0;
}
if (blink_state == BLINK_OFF && may_call_gui_update_cursor)
{
gui_update_cursor(TRUE, FALSE);
#if !GTK_CHECK_VERSION(3,0,0)
gui_mch_flush();
#endif
}
blink_state = BLINK_NONE;
}
static timeout_cb_type
blink_cb(gpointer data UNUSED)
{
if (blink_state == BLINK_ON)
{
gui_undraw_cursor();
blink_state = BLINK_OFF;
blink_timer = timeout_add(blink_offtime, blink_cb, NULL);
}
else
{
gui_update_cursor(TRUE, FALSE);
blink_state = BLINK_ON;
blink_timer = timeout_add(blink_ontime, blink_cb, NULL);
}
#if !GTK_CHECK_VERSION(3,0,0)
gui_mch_flush();
#endif
return FALSE; // don't happen again
}
/*
* Start the cursor blinking. If it was already blinking, this restarts the
* waiting time and shows the cursor.
*/
void
gui_mch_start_blink(void)
{
if (blink_timer)
{
timeout_remove(blink_timer);
blink_timer = 0;
}
// Only switch blinking on if none of the times is zero
if (blink_waittime && blink_ontime && blink_offtime && gui.in_focus)
{
blink_timer = timeout_add(blink_waittime, blink_cb, NULL);
blink_state = BLINK_ON;
gui_update_cursor(TRUE, FALSE);
#if !GTK_CHECK_VERSION(3,0,0)
gui_mch_flush();
#endif
}
}
static gint
enter_notify_event(GtkWidget *widget UNUSED,
GdkEventCrossing *event UNUSED,
gpointer data UNUSED)
{
if (blink_state == BLINK_NONE)
gui_mch_start_blink();
// make sure keyboard input goes there
if (gtk_socket_id == 0 || !gtk_widget_has_focus(gui.drawarea))
gtk_widget_grab_focus(gui.drawarea);
return FALSE;
}
static gint
leave_notify_event(GtkWidget *widget UNUSED,
GdkEventCrossing *event UNUSED,
gpointer data UNUSED)
{
if (blink_state != BLINK_NONE)
gui_mch_stop_blink(TRUE);
return FALSE;
}
static gint
focus_in_event(GtkWidget *widget,
GdkEventFocus *event UNUSED,
gpointer data UNUSED)
{
gui_focus_change(TRUE);
if (blink_state == BLINK_NONE)
gui_mch_start_blink();
// make sure keyboard input goes to the draw area (if this is focus for a
// window)
if (widget != gui.drawarea)
gtk_widget_grab_focus(gui.drawarea);
return TRUE;
}
static gint
focus_out_event(GtkWidget *widget UNUSED,
GdkEventFocus *event UNUSED,
gpointer data UNUSED)
{
gui_focus_change(FALSE);
if (blink_state != BLINK_NONE)
gui_mch_stop_blink(TRUE);
return TRUE;
}
/*
* Translate a GDK key value to UTF-8 independently of the current locale.
* The output is written to string, which must have room for at least 6 bytes
* plus the NUL terminator. Returns the length in bytes.
*
* event->string is evil; see here why:
* http://developer.gnome.org/doc/API/2.0/gdk/gdk-Event-Structures.html#GdkEventKey
*/
static int
keyval_to_string(unsigned int keyval, char_u *string)
{
int len;
guint32 uc;
uc = gdk_keyval_to_unicode(keyval);
if (uc != 0)
{
// Translate a normal key to UTF-8. This doesn't work for dead
// keys of course, you _have_ to use an input method for that.
len = utf_char2bytes((int)uc, string);
}
else
{
// Translate keys which are represented by ASCII control codes in Vim.
// There are only a few of those; most control keys are translated to
// special terminal-like control sequences.
len = 1;
switch (keyval)
{
case GDK_Tab: case GDK_KP_Tab: case GDK_ISO_Left_Tab:
string[0] = TAB;
break;
case GDK_Linefeed:
string[0] = NL;
break;
case GDK_Return: case GDK_ISO_Enter: case GDK_3270_Enter:
string[0] = CAR;
break;
case GDK_Escape:
string[0] = ESC;
break;
default:
len = 0;
break;
}
}
string[len] = NUL;
return len;
}
static int
modifiers_gdk2vim(guint state)
{
int modifiers = 0;
if (state & GDK_SHIFT_MASK)
modifiers |= MOD_MASK_SHIFT;
if (state & GDK_CONTROL_MASK)
modifiers |= MOD_MASK_CTRL;
if (state & GDK_MOD1_MASK)
modifiers |= MOD_MASK_ALT;
#if GTK_CHECK_VERSION(2,10,0)
if (state & GDK_META_MASK)
modifiers |= MOD_MASK_META;
if (state & GDK_SUPER_MASK)
modifiers |= MOD_MASK_CMD;
#else
if (state & GDK_MOD4_MASK)
modifiers |= MOD_MASK_CMD;
#endif
return modifiers;
}
static int
modifiers_gdk2mouse(guint state)
{
int modifiers = 0;
if (state & GDK_SHIFT_MASK)
modifiers |= MOUSE_SHIFT;
if (state & GDK_CONTROL_MASK)
modifiers |= MOUSE_CTRL;
if (state & GDK_MOD1_MASK)
modifiers |= MOUSE_ALT;
return modifiers;
}
/*
* Main keyboard handler:
*/
static gint
key_press_event(GtkWidget *widget UNUSED,
GdkEventKey *event,
gpointer data UNUSED)
{
// For GTK+ 2 we know for sure how large the string might get.
// (That is, up to 6 bytes + NUL + CSI escapes + safety measure.)
char_u string[32], string2[32];
guint key_sym;
int len;
int i;
int modifiers;
int key;
guint state;
char_u *s, *d;
int ctrl_prefix_added = 0;
gui.event_time = event->time;
key_sym = event->keyval;
state = event->state;
#ifdef FEAT_XIM
if (xim_queue_key_press_event(event, TRUE))
return TRUE;
#endif
#ifdef SunXK_F36
/*
* These keys have bogus lookup strings, and trapping them here is
* easier than trying to XRebindKeysym() on them with every possible
* combination of modifiers.
*/
if (key_sym == SunXK_F36 || key_sym == SunXK_F37)
len = 0;
else
#endif
{
len = keyval_to_string(key_sym, string2);
// Careful: convert_input() doesn't handle the NUL character.
// No need to convert pure ASCII anyway, thus the len > 1 check.
if (len > 1 && input_conv.vc_type != CONV_NONE)
len = convert_input(string2, len, sizeof(string2));
s = string2;
d = string;
for (i = 0; i < len; ++i)
{
*d++ = s[i];
if (d[-1] == CSI && d + 2 < string + sizeof(string))
{
// Turn CSI into K_CSI.
*d++ = KS_EXTRA;
*d++ = (int)KE_CSI;
}
}
len = d - string;
}
// Shift-Tab results in Left_Tab, but we want <S-Tab>
if (key_sym == GDK_ISO_Left_Tab)
{
key_sym = GDK_Tab;
state |= GDK_SHIFT_MASK;
}
#ifdef FEAT_MENU
// If there is a menu and 'wak' is "yes", or 'wak' is "menu" and the key
// is a menu shortcut, we ignore everything with the ALT modifier.
if ((state & GDK_MOD1_MASK)
&& gui.menu_is_active
&& (*p_wak == 'y'
|| (*p_wak == 'm'
&& len == 1
&& gui_is_menu_shortcut(string[0]))))
// For GTK2 we return false to signify that we haven't handled the
// keypress, so that gtk will handle the mnemonic or accelerator.
return FALSE;
#endif
// We used to apply Alt/Meta to the key here (Mod1Mask), but that is now
// done later, the same as it happens for the terminal. Hopefully that
// works for everybody...
// Check for special keys. Also do this when len == 1 (key has an ASCII
// value) to detect backspace, delete and keypad keys.
if (len == 0 || len == 1)
{
for (i = 0; special_keys[i].key_sym != 0; i++)
{
if (special_keys[i].key_sym == key_sym)
{
string[0] = CSI;
string[1] = special_keys[i].code0;
string[2] = special_keys[i].code1;
len = -3;
break;
}
}
}
#ifdef GDK_KEY_dead_circumflex
// Belgian Ctrl+[ workaround
if (len == 0 && key_sym == GDK_KEY_dead_circumflex)
{
string[0] = CSI;
string[1] = KS_MODIFIER;
string[2] = MOD_MASK_CTRL;
string[3] = '[';
len = 4;
add_to_input_buf(string, len);
// workaround has to return here, otherwise our fake string[] entries
// are confusing code downstream
return TRUE;
}
#endif
if (len == 0) // Unrecognized key
return TRUE;
// For some keys a shift modifier is translated into another key code.
if (len == -3)
key = TO_SPECIAL(string[1], string[2]);
else
{
string[len] = NUL;
key = mb_ptr2char(string);
}
// Handle modifiers.
modifiers = modifiers_gdk2vim(state);
// Recognize special keys.
key = simplify_key(key, &modifiers);
if (key == CSI)
key = K_CSI;
if (IS_SPECIAL(key))
{
string[0] = CSI;
string[1] = K_SECOND(key);
string[2] = K_THIRD(key);
len = 3;
}
else
{
// Some keys need adjustment when the Ctrl modifier is used.
key = may_adjust_key_for_ctrl(modifiers, key);
// May remove the Shift modifier if it's included in the key.
modifiers = may_remove_shift_modifier(modifiers, key);
len = mb_char2bytes(key, string);
}
if (modifiers != 0)
{
string2[0] = CSI;
string2[1] = KS_MODIFIER;
string2[2] = modifiers;
add_to_input_buf(string2, 3);
if (modifiers == 0x4)
ctrl_prefix_added = 1;
}
// Check if the key interrupts.
{
int int_ch = check_for_interrupt(key, modifiers);
if (int_ch != NUL)
{
trash_input_buf();
string[0] = int_ch;
len = 1;
}
}
// workaround for German keyboard, where instead of '[' char we have code
// sequence of bytes 195, 188 (UTF-8 for "u-umlaut")
if (ctrl_prefix_added && len == 2
&& ((int)string[0]) == 195
&& ((int)string[1]) == 188)
{
string[0] = 91; // ASCII('[')
len = 1;
}
add_to_input_buf(string, len);
// blank out the pointer if necessary
if (p_mh)
gui_mch_mousehide(TRUE);
return TRUE;
}
#if defined(FEAT_XIM) || GTK_CHECK_VERSION(3,0,0)
static gboolean
key_release_event(GtkWidget *widget UNUSED,
GdkEventKey *event UNUSED,
gpointer data UNUSED)
{
# if defined(FEAT_XIM)
gui.event_time = event->time;
/*
* GTK+ 2 input methods may do fancy stuff on key release events too.
* With the default IM for instance, you can enter any UCS code point
* by holding down CTRL-SHIFT and typing hexadecimal digits.
*/
return xim_queue_key_press_event(event, FALSE);
# else
return TRUE;
# endif
}
#endif
/////////////////////////////////////////////////////////////////////////////
// Selection handlers:
// Remember when clip_lose_selection was called from here, we must not call
// gtk_selection_owner_set() then.
static int in_selection_clear_event = FALSE;
static gint
selection_clear_event(GtkWidget *widget UNUSED,
GdkEventSelection *event,
gpointer user_data UNUSED)
{
in_selection_clear_event = TRUE;
if (event->selection == clip_plus.gtk_sel_atom)
clip_lose_selection(&clip_plus);
else
clip_lose_selection(&clip_star);
in_selection_clear_event = FALSE;
return TRUE;
}
#define RS_NONE 0 // selection_received_cb() not called yet
#define RS_OK 1 // selection_received_cb() called and OK
#define RS_FAIL 2 // selection_received_cb() called and failed
static int received_selection = RS_NONE;
static void
selection_received_cb(GtkWidget *widget UNUSED,
GtkSelectionData *data,
guint time_ UNUSED,
gpointer user_data UNUSED)
{
Clipboard_T *cbd;
char_u *text;
char_u *tmpbuf = NULL;
guchar *tmpbuf_utf8 = NULL;
int len;
int motion_type = MAUTO;
if (gtk_selection_data_get_selection(data) == clip_plus.gtk_sel_atom)
cbd = &clip_plus;
else
cbd = &clip_star;
text = (char_u *)gtk_selection_data_get_data(data);
len = gtk_selection_data_get_length(data);
if (text == NULL || len <= 0)
{
received_selection = RS_FAIL;
// clip_free_selection(cbd); ???
return;
}
if (gtk_selection_data_get_data_type(data) == vim_atom)
{
motion_type = *text++;
--len;
}
else if (gtk_selection_data_get_data_type(data) == vimenc_atom)
{
char_u *enc;
vimconv_T conv;
motion_type = *text++;
--len;
enc = text;
text += STRLEN(text) + 1;
len -= text - enc;
// If the encoding of the text is different from 'encoding', attempt
// converting it.
conv.vc_type = CONV_NONE;
convert_setup(&conv, enc, p_enc);
if (conv.vc_type != CONV_NONE)
{
tmpbuf = string_convert(&conv, text, &len);
if (tmpbuf != NULL)
text = tmpbuf;
convert_setup(&conv, NULL, NULL);
}
}
// gtk_selection_data_get_text() handles all the nasty details
// and targets and encodings etc. This rocks so hard.
else
{
tmpbuf_utf8 = gtk_selection_data_get_text(data);
if (tmpbuf_utf8 != NULL)
{
len = STRLEN(tmpbuf_utf8);
if (input_conv.vc_type != CONV_NONE)
{
tmpbuf = string_convert(&input_conv, tmpbuf_utf8, &len);
if (tmpbuf != NULL)
text = tmpbuf;
}
else
text = tmpbuf_utf8;
}
else if (len >= 2 && text[0] == 0xff && text[1] == 0xfe)
{
vimconv_T conv;
// UTF-16, we get this for HTML
conv.vc_type = CONV_NONE;
convert_setup_ext(&conv, (char_u *)"utf-16le", FALSE, p_enc, TRUE);
if (conv.vc_type != CONV_NONE)
{
text += 2;
len -= 2;
tmpbuf = string_convert(&conv, text, &len);
convert_setup(&conv, NULL, NULL);
}
if (tmpbuf != NULL)
text = tmpbuf;
}
}
// Chop off any trailing NUL bytes. OpenOffice sends these.
while (len > 0 && text[len - 1] == NUL)
--len;
clip_yank_selection(motion_type, text, (long)len, cbd);
received_selection = RS_OK;
vim_free(tmpbuf);
g_free(tmpbuf_utf8);
}
/*
* Prepare our selection data for passing it to the external selection
* client.
*/
static void
selection_get_cb(GtkWidget *widget UNUSED,
GtkSelectionData *selection_data,
guint info,
guint time_ UNUSED,
gpointer user_data UNUSED)
{
char_u *string;
char_u *tmpbuf;
long_u tmplen;
int length;
int motion_type;
GdkAtom type;
Clipboard_T *cbd;
if (gtk_selection_data_get_selection(selection_data)
== clip_plus.gtk_sel_atom)
cbd = &clip_plus;
else
cbd = &clip_star;
if (!cbd->owned)
return; // Shouldn't ever happen
if (info != (guint)TARGET_STRING
&& (!clip_html || info != (guint)TARGET_HTML)
&& info != (guint)TARGET_UTF8_STRING
&& info != (guint)TARGET_VIMENC
&& info != (guint)TARGET_VIM
&& info != (guint)TARGET_COMPOUND_TEXT
&& info != (guint)TARGET_TEXT_PLAIN
&& info != (guint)TARGET_TEXT_PLAIN_UTF8
&& info != (guint)TARGET_TEXT)
return;
// get the selection from the '*'/'+' register
clip_get_selection(cbd);
motion_type = clip_convert_selection(&string, &tmplen, cbd);
if (motion_type < 0 || string == NULL)
return;
// Due to int arguments we can't handle more than G_MAXINT. Also
// reserve one extra byte for NUL or the motion type; just in case.
// (Not that pasting 2G of text is ever going to work, but... ;-)
length = MIN(tmplen, (long_u)(G_MAXINT - 1));
if (info == (guint)TARGET_VIM)
{
tmpbuf = alloc(length + 1);
if (tmpbuf != NULL)
{
tmpbuf[0] = motion_type;
mch_memmove(tmpbuf + 1, string, (size_t)length);
}
// For our own format, the first byte contains the motion type
++length;
vim_free(string);
string = tmpbuf;
type = vim_atom;
}
else if (info == (guint)TARGET_HTML)
{
vimconv_T conv;
// Since we get utf-16, we probably should set it as well.
conv.vc_type = CONV_NONE;
convert_setup_ext(&conv, p_enc, TRUE, (char_u *)"utf-16le", FALSE);
if (conv.vc_type != CONV_NONE)
{
tmpbuf = string_convert(&conv, string, &length);
convert_setup(&conv, NULL, NULL);
vim_free(string);
string = tmpbuf;
}
// Prepend the BOM: "fffe"
if (string != NULL)
{
tmpbuf = alloc(length + 2);
if (tmpbuf != NULL)
{
tmpbuf[0] = 0xff;
tmpbuf[1] = 0xfe;
mch_memmove(tmpbuf + 2, string, (size_t)length);
vim_free(string);
string = tmpbuf;
length += 2;
}
#if !GTK_CHECK_VERSION(3,0,0)
// Looks redundant even for GTK2 because these values are
// overwritten by gtk_selection_data_set() that follows.
selection_data->type = selection_data->target;
selection_data->format = 16; // 16 bits per char
#endif
gtk_selection_data_set(selection_data, html_atom, 16,
string, length);
vim_free(string);
}
return;
}
else if (info == (guint)TARGET_VIMENC)
{
int l = STRLEN(p_enc);
// contents: motion_type 'encoding' NUL text
tmpbuf = alloc(length + l + 2);
if (tmpbuf != NULL)
{
tmpbuf[0] = motion_type;
STRCPY(tmpbuf + 1, p_enc);
mch_memmove(tmpbuf + l + 2, string, (size_t)length);
length += l + 2;
vim_free(string);
string = tmpbuf;
}
type = vimenc_atom;
}
// gtk_selection_data_set_text() handles everything for us. This is
// so easy and simple and cool, it'd be insane not to use it.
else
{
if (output_conv.vc_type != CONV_NONE)
{
tmpbuf = string_convert(&output_conv, string, &length);
vim_free(string);
if (tmpbuf == NULL)
return;
string = tmpbuf;
}
// Validate the string to avoid runtime warnings
if (g_utf8_validate((const char *)string, (gssize)length, NULL))
{
gtk_selection_data_set_text(selection_data,
(const char *)string, length);
}
vim_free(string);
return;
}
if (string != NULL)
{
#if !GTK_CHECK_VERSION(3,0,0)
// Looks redundant even for GTK2 because these values are
// overwritten by gtk_selection_data_set() that follows.
selection_data->type = selection_data->target;
selection_data->format = 8; // 8 bits per char
#endif
gtk_selection_data_set(selection_data, type, 8, string, length);
vim_free(string);
}
}
/*
* Check if the GUI can be started. Called before gvimrc is sourced and
* before fork().
* Return OK or FAIL.
*/
int
gui_mch_early_init_check(int give_message)
{
char_u *p, *q;
// Guess that when $DISPLAY isn't set the GUI can't start.
p = mch_getenv((char_u *)"DISPLAY");
q = mch_getenv((char_u *)"WAYLAND_DISPLAY");
if ((p == NULL || *p == NUL) && (q == NULL || *q == NUL))
{
gui.dying = TRUE;
if (give_message)
emsg(_((char *)e_cannot_open_display));
return FAIL;
}
return OK;
}
/*
* Check if the GUI can be started. Called before gvimrc is sourced but after
* fork().
* Return OK or FAIL.
*/
int
gui_mch_init_check(void)
{
#ifdef USE_GRESOURCE
static int res_registered = FALSE;
if (!res_registered)
{
// Call this function in the GUI process; otherwise, the resources
// won't be available. Don't call it twice.
res_registered = TRUE;
gui_gtk_register_resource();
}
#endif
#if GTK_CHECK_VERSION(3,10,0)
// Vim currently assumes that Gtk means X11, so it cannot use native Gtk
// support for other backends such as Wayland.
//
// Use an environment variable to enable unfinished Wayland support.
if (getenv("GVIM_ENABLE_WAYLAND") == NULL)
gdk_set_allowed_backends ("x11");
#endif
#ifdef FEAT_GUI_GNOME
if (gtk_socket_id == 0)
using_gnome = 1;
#endif
// This defaults to argv[0], but we want it to match the name of the
// shipped gvim.desktop so that Vim's windows can be associated with this
// file.
g_set_prgname("gvim");
// Don't use gtk_init() or gnome_init(), it exits on failure.
if (!gtk_init_check(&gui_argc, &gui_argv))
{
gui.dying = TRUE;
emsg(_((char *)e_cannot_open_display));
return FAIL;
}
return OK;
}
/////////////////////////////////////////////////////////////////////////////
// Mouse handling callbacks
static guint mouse_click_timer = 0;
static int mouse_timed_out = TRUE;
/*
* Timer used to recognize multiple clicks of the mouse button
*/
static timeout_cb_type
mouse_click_timer_cb(gpointer data)
{
// we don't use this information currently
int *timed_out = (int *) data;
*timed_out = TRUE;
return FALSE; // don't happen again
}
static guint motion_repeat_timer = 0;
static int motion_repeat_offset = FALSE;
static timeout_cb_type motion_repeat_timer_cb(gpointer);
static void
process_motion_notify(int x, int y, GdkModifierType state)
{
int button;
int_u vim_modifiers;
GtkAllocation allocation;
// Need to add GDK_BUTTON1_MASK state when dragging a touch.
state |= dragging_button_state;
button = (state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK |
GDK_BUTTON3_MASK | GDK_BUTTON4_MASK |
GDK_BUTTON5_MASK))
? MOUSE_DRAG : ' ';
// If our pointer is currently hidden, then we should show it.
gui_mch_mousehide(FALSE);
// Just moving the rodent above the drawing area without any button
// being pressed.
if (button != MOUSE_DRAG)
{
gui_mouse_moved(x, y);
return;
}
// translate modifier coding between the main engine and GTK
vim_modifiers = modifiers_gdk2mouse(state);
// inform the editor engine about the occurrence of this event
gui_send_mouse_event(button, x, y, FALSE, vim_modifiers);
/*
* Auto repeat timer handling.
*/
gtk_widget_get_allocation(gui.drawarea, &allocation);
if (x < 0 || y < 0
|| x >= allocation.width
|| y >= allocation.height)
{
int dx;
int dy;
int offshoot;
int delay = 10;
// Calculate the maximal distance of the cursor from the drawing area.
// (offshoot can't become negative here!).
dx = x < 0 ? -x : x - allocation.width;
dy = y < 0 ? -y : y - allocation.height;
offshoot = dx > dy ? dx : dy;
// Make a linearly decaying timer delay with a threshold of 5 at a
// distance of 127 pixels from the main window.
//
// One could think endlessly about the most ergonomic variant here.
// For example it could make sense to calculate the distance from the
// drags start instead...
//
// Maybe a parabolic interpolation would suite us better here too...
if (offshoot > 127)
{
// 5 appears to be somehow near to my perceptual limits :-).
delay = 5;
}
else
{
delay = (130 * (127 - offshoot)) / 127 + 5;
}
// shoot again
if (!motion_repeat_timer)
motion_repeat_timer = timeout_add(delay, motion_repeat_timer_cb,
NULL);
}
}
#if GTK_CHECK_VERSION(3,0,0)
static GdkDevice *
gui_gtk_get_pointer_device(GtkWidget *widget)
{
GdkWindow * const win = gtk_widget_get_window(widget);
GdkDisplay * const dpy = gdk_window_get_display(win);
# if GTK_CHECK_VERSION(3,20,0)
GdkSeat * const seat = gdk_display_get_default_seat(dpy);
return gdk_seat_get_pointer(seat);
# else
GdkDeviceManager * const mngr = gdk_display_get_device_manager(dpy);
return gdk_device_manager_get_client_pointer(mngr);
# endif
}
static GdkWindow *
gui_gtk_get_pointer(GtkWidget *widget,
gint *x,
gint *y,
GdkModifierType *state)
{
GdkWindow * const win = gtk_widget_get_window(widget);
GdkDevice * const dev = gui_gtk_get_pointer_device(widget);
return gdk_window_get_device_position(win, dev , x, y, state);
}
# if defined(FEAT_GUI_TABLINE) || defined(PROTO)
static GdkWindow *
gui_gtk_window_at_position(GtkWidget *widget,
gint *x,
gint *y)
{
GdkDevice * const dev = gui_gtk_get_pointer_device(widget);
return gdk_device_get_window_at_position(dev, x, y);
}
# endif
#else // !GTK_CHECK_VERSION(3,0,0)
# define gui_gtk_get_pointer(wid, x, y, s) \
gdk_window_get_pointer((wid)->window, x, y, s)
# define gui_gtk_window_at_position(wid, x, y) gdk_window_at_pointer(x, y)
#endif
/*
* Timer used to recognize multiple clicks of the mouse button.
*/
static timeout_cb_type
motion_repeat_timer_cb(gpointer data UNUSED)
{
int x;
int y;
GdkModifierType state;
gui_gtk_get_pointer(gui.drawarea, &x, &y, &state);
if (!(state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK |
GDK_BUTTON3_MASK | GDK_BUTTON4_MASK |
GDK_BUTTON5_MASK)))
{
motion_repeat_timer = 0;
return FALSE;
}
// If there already is a mouse click in the input buffer, wait another
// time (otherwise we would create a backlog of clicks)
if (vim_used_in_input_buf() > 10)
return TRUE;
motion_repeat_timer = 0;
/*
* Fake a motion event.
* Trick: Pretend the mouse moved to the next character on every other
* event, otherwise drag events will be discarded, because they are still
* in the same character.
*/
if (motion_repeat_offset)
x += gui.char_width;
motion_repeat_offset = !motion_repeat_offset;
process_motion_notify(x, y, state);
// Don't happen again. We will get reinstalled in the synthetic event
// if needed -- thus repeating should still work.
return FALSE;
}
static gint
motion_notify_event(GtkWidget *widget,
GdkEventMotion *event,
gpointer data UNUSED)
{
if (event->is_hint)
{
int x;
int y;
GdkModifierType state;
gui_gtk_get_pointer(widget, &x, &y, &state);
process_motion_notify(x, y, state);
}
else
{
process_motion_notify((int)event->x, (int)event->y,
(GdkModifierType)event->state);
}
return TRUE; // handled
}
/*
* Mouse button handling. Note please that we are capturing multiple click's
* by our own timeout mechanism instead of the one provided by GTK+ itself.
* This is due to the way the generic VIM code is recognizing multiple clicks.
*/
static gint
button_press_event(GtkWidget *widget,
GdkEventButton *event,
gpointer data UNUSED)
{
int button;
int repeated_click = FALSE;
int x, y;
int_u vim_modifiers;
gui.event_time = event->time;
// Make sure we have focus now we've been selected
if (gtk_socket_id != 0 && !gtk_widget_has_focus(widget))
gtk_widget_grab_focus(widget);
/*
* Don't let additional events about multiple clicks send by GTK to us
* after the initial button press event confuse us.
*/
if (event->type != GDK_BUTTON_PRESS)
return FALSE;
x = event->x;
y = event->y;
// Handle multiple clicks
if (!mouse_timed_out && mouse_click_timer)
{
timeout_remove(mouse_click_timer);
mouse_click_timer = 0;
repeated_click = TRUE;
}
mouse_timed_out = FALSE;
mouse_click_timer = timeout_add(p_mouset, mouse_click_timer_cb,
&mouse_timed_out);
switch (event->button)
{
// Keep in sync with gui_x11.c.
// Buttons 4-7 are handled in scroll_event()
case 1:
button = MOUSE_LEFT;
// needed for touch-drag
dragging_button_state |= GDK_BUTTON1_MASK;
break;
case 2: button = MOUSE_MIDDLE; break;
case 3: button = MOUSE_RIGHT; break;
case 8: button = MOUSE_X1; break;
case 9: button = MOUSE_X2; break;
default:
return FALSE; // Unknown button
}
#ifdef FEAT_XIM
// cancel any preediting
if (im_is_preediting())
xim_reset();
#endif
vim_modifiers = modifiers_gdk2mouse(event->state);
gui_send_mouse_event(button, x, y, repeated_click, vim_modifiers);
return TRUE;
}
/*
* GTK+ abstracts scrolling via the GdkEventScroll.
*/
static gboolean
scroll_event(GtkWidget *widget,
GdkEventScroll *event,
gpointer data UNUSED)
{
int button = 0; // silence gcc
int_u vim_modifiers;
#if GTK_CHECK_VERSION(3,4,0)
static double acc_x, acc_y;
#if !GTK_CHECK_VERSION(3,22,0)
static guint32 last_smooth_event_time;
#endif
#define DT_X11 1
#define DT_WAYLAND 2
static int display_type;
if (!display_type)
display_type = gui_mch_get_display() ? DT_X11 : DT_WAYLAND;
#endif
if (gtk_socket_id != 0 && !gtk_widget_has_focus(widget))
gtk_widget_grab_focus(widget);
switch (event->direction)
{
case GDK_SCROLL_UP:
button = MOUSE_4;
break;
case GDK_SCROLL_DOWN:
button = MOUSE_5;
break;
case GDK_SCROLL_LEFT:
button = MOUSE_7;
break;
case GDK_SCROLL_RIGHT:
button = MOUSE_6;
break;
#if GTK_CHECK_VERSION(3,4,0)
case GDK_SCROLL_SMOOTH:
if (event->is_stop)
{
acc_x = acc_y = 0;
// this event tells us to stop, without an actual moving
return FALSE;
}
#if GTK_CHECK_VERSION(3,22,0)
if (gdk_device_get_axes(event->device) & GDK_AXIS_FLAG_WHEEL)
// this is from a wheel (as oppose to a touchpad / trackpoint)
#else
if (event->time - last_smooth_event_time > 50)
// reset our accumulations after 50ms of silence
#endif
acc_x = acc_y = 0;
acc_x += event->delta_x;
acc_y += event->delta_y;
#if !GTK_CHECK_VERSION(3,22,0)
last_smooth_event_time = event->time;
#endif
break;
#endif
default: // This shouldn't happen
return FALSE;
}
# ifdef FEAT_XIM
// cancel any preediting
if (im_is_preediting())
xim_reset();
# endif
vim_modifiers = modifiers_gdk2mouse(event->state);
#if GTK_CHECK_VERSION(3,4,0)
// on x11, despite not requested, when we copy into primary clipboard,
// we'll get smooth events. Unsmooth ones will also come along.
if (event->direction == GDK_SCROLL_SMOOTH && display_type == DT_WAYLAND)
{
while (acc_x >= 1.0)
{ // right
acc_x = MAX(0.0, acc_x - 1.0);
gui_send_mouse_event(MOUSE_6, (int)event->x, (int)event->y,
FALSE, vim_modifiers);
}
while (acc_x <= -1.0)
{ // left
acc_x = MIN(0.0, acc_x + 1.0);
gui_send_mouse_event(MOUSE_7, (int)event->x, (int)event->y,
FALSE, vim_modifiers);
}
while (acc_y >= 1.0)
{ // down
acc_y = MAX(0.0, acc_y - 1.0);
gui_send_mouse_event(MOUSE_5, (int)event->x, (int)event->y,
FALSE, vim_modifiers);
}
while (acc_y <= -1.0)
{ // up
acc_y = MIN(0.0, acc_y + 1.0);
gui_send_mouse_event(MOUSE_4, (int)event->x, (int)event->y,
FALSE, vim_modifiers);
}
}
else if (event->direction == GDK_SCROLL_SMOOTH && display_type == DT_X11)
// for X11 we deal with unsmooth events, and so ignore the smooth ones
;
else
#undef DT_X11
#undef DT_WAYLAND
#endif
gui_send_mouse_event(button, (int)event->x, (int)event->y,
FALSE, vim_modifiers);
return TRUE;
}
static gint
button_release_event(GtkWidget *widget UNUSED,
GdkEventButton *event,
gpointer data UNUSED)
{
int x, y;
int_u vim_modifiers;
gui.event_time = event->time;
// Remove any motion "machine gun" timers used for automatic further
// extension of allocation areas if outside of the applications window
// area .
if (motion_repeat_timer)
{
timeout_remove(motion_repeat_timer);
motion_repeat_timer = 0;
}
x = event->x;
y = event->y;
vim_modifiers = modifiers_gdk2mouse(event->state);
gui_send_mouse_event(MOUSE_RELEASE, x, y, FALSE, vim_modifiers);
switch (event->button)
{
case 1: // MOUSE_LEFT
dragging_button_state = 0;
break;
}
return TRUE;
}
#ifdef FEAT_DND
/////////////////////////////////////////////////////////////////////////////
// Drag aNd Drop support handlers.
/*
* Count how many items there may be and separate them with a NUL.
* Apparently the items are separated with \r\n. This is not documented,
* thus be careful not to go past the end. Also allow separation with
* NUL characters.
*/
static int
count_and_decode_uri_list(char_u *out, char_u *raw, int len)
{
int i;
char_u *p = out;
int count = 0;
for (i = 0; i < len; ++i)
{
if (raw[i] == NUL || raw[i] == '\n' || raw[i] == '\r')
{
if (p > out && p[-1] != NUL)
{
++count;
*p++ = NUL;
}
}
else if (raw[i] == '%' && i + 2 < len && hexhex2nr(raw + i + 1) > 0)
{
*p++ = hexhex2nr(raw + i + 1);
i += 2;
}
else
*p++ = raw[i];
}
if (p > out && p[-1] != NUL)
{
*p = NUL; // last item didn't have \r or \n
++count;
}
return count;
}
/*
* Parse NUL separated "src" strings. Make it an array "outlist" form. On
* this process, URI which protocol is not "file:" are removed. Return
* length of array (less than "max").
*/
static int
filter_uri_list(char_u **outlist, int max, char_u *src)
{
int i, j;
for (i = j = 0; i < max; ++i)
{
outlist[i] = NULL;
if (STRNCMP(src, "file:", 5) == 0)
{
src += 5;
if (STRNCMP(src, "//localhost", 11) == 0)
src += 11;
while (src[0] == '/' && src[1] == '/')
++src;
outlist[j++] = vim_strsave(src);
}
src += STRLEN(src) + 1;
}
return j;
}
static char_u **
parse_uri_list(int *count, char_u *data, int len)
{
int n = 0;
char_u *tmp = NULL;
char_u **array = NULL;
if (data != NULL && len > 0 && (tmp = alloc(len + 1)) != NULL)
{
n = count_and_decode_uri_list(tmp, data, len);
if (n > 0 && (array = ALLOC_MULT(char_u *, n)) != NULL)
n = filter_uri_list(array, n, tmp);
}
vim_free(tmp);
*count = n;
return array;
}
static void
drag_handle_uri_list(GdkDragContext *context,
GtkSelectionData *data,
guint time_,
GdkModifierType state,
gint x,
gint y)
{
char_u **fnames;
int nfiles = 0;
fnames = parse_uri_list(&nfiles,
(char_u *)gtk_selection_data_get_data(data),
gtk_selection_data_get_length(data));
if (fnames != NULL && nfiles > 0)
{
int_u modifiers;
gtk_drag_finish(context, TRUE, FALSE, time_); // accept
modifiers = modifiers_gdk2mouse(state);
gui_handle_drop(x, y, modifiers, fnames, nfiles);
}
else
vim_free(fnames);
}
static void
drag_handle_text(GdkDragContext *context,
GtkSelectionData *data,
guint time_,
GdkModifierType state)
{
char_u dropkey[6] = {CSI, KS_MODIFIER, 0, CSI, KS_EXTRA, (char_u)KE_DROP};
char_u *text;
int len;
char_u *tmpbuf = NULL;
text = (char_u *)gtk_selection_data_get_data(data);
len = gtk_selection_data_get_length(data);
if (gtk_selection_data_get_data_type(data) == utf8_string_atom)
{
if (input_conv.vc_type != CONV_NONE)
tmpbuf = string_convert(&input_conv, text, &len);
if (tmpbuf != NULL)
text = tmpbuf;
}
dnd_yank_drag_data(text, (long)len);
gtk_drag_finish(context, TRUE, FALSE, time_); // accept
vim_free(tmpbuf);
dropkey[2] = modifiers_gdk2vim(state);
if (dropkey[2] != 0)
add_to_input_buf(dropkey, (int)sizeof(dropkey));
else
add_to_input_buf(dropkey + 3, (int)(sizeof(dropkey) - 3));
}
/*
* DND receiver.
*/
static void
drag_data_received_cb(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *data,
guint info,
guint time_,
gpointer user_data UNUSED)
{
GdkModifierType state;
// Guard against trash
const guchar * const data_data = gtk_selection_data_get_data(data);
const gint data_length = gtk_selection_data_get_length(data);
const gint data_format = gtk_selection_data_get_format(data);
if (data_data == NULL
|| data_length <= 0
|| data_format != 8
|| data_data[data_length] != '\0')
{
gtk_drag_finish(context, FALSE, FALSE, time_);
return;
}
// Get the current modifier state for proper distinguishment between
// different operations later.
gui_gtk_get_pointer(widget, NULL, NULL, &state);
// Not sure about the role of "text/plain" here...
if (info == (guint)TARGET_TEXT_URI_LIST)
drag_handle_uri_list(context, data, time_, state, x, y);
else
drag_handle_text(context, data, time_, state);
}
#endif // FEAT_DND
#if defined(USE_GNOME_SESSION)
/*
* GnomeClient interact callback. Check for unsaved buffers that cannot
* be abandoned and pop up a dialog asking the user for confirmation if
* necessary.
*/
static void
sm_client_check_changed_any(GnomeClient *client UNUSED,
gint key,
GnomeDialogType type UNUSED,
gpointer data UNUSED)
{
cmdmod_T save_cmdmod;
gboolean shutdown_cancelled;
save_cmdmod = cmdmod;
# ifdef FEAT_BROWSE
cmdmod.cmod_flags |= CMOD_BROWSE;
# endif
# if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
cmdmod.cmod_flags |= CMOD_CONFIRM;
# endif
/*
* If there are changed buffers, present the user with
* a dialog if possible, otherwise give an error message.
*/
shutdown_cancelled = check_changed_any(FALSE, FALSE);
exiting = FALSE;
cmdmod = save_cmdmod;
setcursor(); // position the cursor
out_flush();
/*
* If the user hit the [Cancel] button the whole shutdown
* will be cancelled. Wow, quite powerful feature (:
*/
gnome_interaction_key_return(key, shutdown_cancelled);
}
/*
* "save_yourself" signal handler. Initiate an interaction to ask the user
* for confirmation if necessary. Save the current editing session and tell
* the session manager how to restart Vim.
*/
static gboolean
sm_client_save_yourself(GnomeClient *client,
gint phase UNUSED,
GnomeSaveStyle save_style UNUSED,
gboolean shutdown UNUSED,
GnomeInteractStyle interact_style,
gboolean fast UNUSED,
gpointer data UNUSED)
{
static const char suffix[] = "-session.vim";
char *session_file;
unsigned int len;
gboolean success;
// Always request an interaction if possible. check_changed_any()
// won't actually show a dialog unless any buffers have been modified.
// There doesn't seem to be an obvious way to check that without
// automatically firing the dialog. Anyway, it works just fine.
if (interact_style == GNOME_INTERACT_ANY)
gnome_client_request_interaction(client, GNOME_DIALOG_NORMAL,
&sm_client_check_changed_any,
NULL);
out_flush();
ml_sync_all(FALSE, FALSE); // preserve all swap files
// The path is unique for each session save. We do neither know nor care
// which session script will actually be used later. This decision is in
// the domain of the session manager.
session_file = gnome_config_get_real_path(
gnome_client_get_config_prefix(client));
len = strlen(session_file);
if (len > 0 && session_file[len-1] == G_DIR_SEPARATOR)
--len; // get rid of the superfluous trailing '/'
session_file = g_renew(char, session_file, len + sizeof(suffix));
memcpy(session_file + len, suffix, sizeof(suffix));
success = write_session_file((char_u *)session_file);
if (success)
{
const char *argv[8];
int i;
// Tell the session manager how to wipe out the stored session data.
// This isn't as dangerous as it looks, don't worry :) session_file
// is a unique absolute filename. Usually it'll be something like
// `/home/user/.gnome2/vim-XXXXXX-session.vim'.
i = 0;
argv[i++] = "rm";
argv[i++] = session_file;
argv[i] = NULL;
gnome_client_set_discard_command(client, i, (char **)argv);
// Tell the session manager how to restore the just saved session.
// This is easily done thanks to Vim's -S option. Pass the -f flag
// since there's no need to fork -- it might even cause confusion.
// Also pass the window role to give the WM something to match on.
// The role is set in gui_mch_open(), thus should _never_ be NULL.
i = 0;
argv[i++] = restart_command;
argv[i++] = "-f";
argv[i++] = "-g";
argv[i++] = "--role";
argv[i++] = gtk_window_get_role(GTK_WINDOW(gui.mainwin));
argv[i++] = "-S";
argv[i++] = session_file;
argv[i] = NULL;
gnome_client_set_restart_command(client, i, (char **)argv);
gnome_client_set_clone_command(client, 0, NULL);
}
g_free(session_file);
return success;
}
/*
* Called when the session manager wants us to die. There isn't much to save
* here since "save_yourself" has been emitted before (unless serious trouble
* is happening).
*/
static void
sm_client_die(GnomeClient *client UNUSED, gpointer data UNUSED)
{
// Don't write messages to the GUI anymore
full_screen = FALSE;
vim_strncpy(IObuff, (char_u *)
_("Vim: Received \"die\" request from session manager\n"),
IOSIZE - 1);
preserve_exit();
}
/*
* Connect our signal handlers to be notified on session save and shutdown.
*/
static void
setup_save_yourself(void)
{
GnomeClient *client;
client = gnome_master_client();
if (client == NULL)
return;
// Must use the deprecated gtk_signal_connect() for compatibility
// with GNOME 1. Arrgh, zombies!
gtk_signal_connect(GTK_OBJECT(client), "save_yourself",
GTK_SIGNAL_FUNC(&sm_client_save_yourself), NULL);
gtk_signal_connect(GTK_OBJECT(client), "die",
GTK_SIGNAL_FUNC(&sm_client_die), NULL);
}
#else // !USE_GNOME_SESSION
# ifdef USE_XSMP
/*
* GTK tells us that XSMP needs attention
*/
static gboolean
local_xsmp_handle_requests(
GIOChannel *source UNUSED,
GIOCondition condition,
gpointer data)
{
if (condition == G_IO_IN)
{
// Do stuff; maybe close connection
if (xsmp_handle_requests() == FAIL)
g_io_channel_unref((GIOChannel *)data);
return TRUE;
}
// Error
g_io_channel_unref((GIOChannel *)data);
xsmp_close();
return TRUE;
}
# endif // USE_XSMP
/*
* Setup the WM_PROTOCOLS to indicate we want the WM_SAVE_YOURSELF event.
* This is an ugly use of X functions. GTK doesn't offer an alternative.
*/
static void
setup_save_yourself(void)
{
Atom *existing_atoms = NULL;
int count = 0;
# ifdef USE_XSMP
if (xsmp_icefd != -1)
{
/*
* Use XSMP is preference to legacy WM_SAVE_YOURSELF;
* set up GTK IO monitor
*/
GIOChannel *g_io = g_io_channel_unix_new(xsmp_icefd);
g_io_add_watch(g_io, G_IO_IN | G_IO_ERR | G_IO_HUP,
local_xsmp_handle_requests, (gpointer)g_io);
g_io_channel_unref(g_io);
}
else
# endif
{
// Fall back to old method
// first get the existing value
Display * dpy = gui_mch_get_display();
if (!dpy)
return;
GdkWindow * const mainwin_win = gtk_widget_get_window(gui.mainwin);
if (XGetWMProtocols(dpy, GDK_WINDOW_XID(mainwin_win),
&existing_atoms, &count))
{
Atom *new_atoms;
Atom save_yourself_xatom;
int i;
save_yourself_xatom = GET_X_ATOM(save_yourself_atom);
// check if WM_SAVE_YOURSELF isn't there yet
for (i = 0; i < count; ++i)
if (existing_atoms[i] == save_yourself_xatom)
break;
if (i == count)
{
// allocate an Atoms array which is one item longer
new_atoms = ALLOC_MULT(Atom, count + 1);
if (new_atoms != NULL)
{
memcpy(new_atoms, existing_atoms, count * sizeof(Atom));
new_atoms[count] = save_yourself_xatom;
XSetWMProtocols(GDK_WINDOW_XDISPLAY(mainwin_win),
GDK_WINDOW_XID(mainwin_win),
new_atoms, count + 1);
vim_free(new_atoms);
}
}
XFree(existing_atoms);
}
}
}
/*
* Installing a global event filter seems to be the only way to catch
* client messages of type WM_PROTOCOLS without overriding GDK's own
* client message event filter. Well, that's still better than trying
* to guess what the GDK filter had done if it had been invoked instead
*
* GTK2_FIXME: This doesn't seem to work. For some reason we never
* receive WM_SAVE_YOURSELF even though everything is set up correctly.
* I have the nasty feeling modern session managers just don't send this
* deprecated message anymore. Addition: confirmed by several people.
*
* The GNOME session support is much cooler anyway. Unlike this ugly
* WM_SAVE_YOURSELF hack it actually stores the session... And yes,
* it should work with KDE as well.
*/
static GdkFilterReturn
global_event_filter(GdkXEvent *xev,
GdkEvent *event UNUSED,
gpointer data UNUSED)
{
XEvent *xevent = (XEvent *)xev;
if (xevent != NULL
&& xevent->type == ClientMessage
&& xevent->xclient.message_type == GET_X_ATOM(wm_protocols_atom)
&& (long_u)xevent->xclient.data.l[0]
== GET_X_ATOM(save_yourself_atom))
{
out_flush();
ml_sync_all(FALSE, FALSE); // preserve all swap files
/*
* Set the window's WM_COMMAND property, to let the window manager
* know we are done saving ourselves. We don't want to be
* restarted, thus set argv to NULL.
*/
XSetCommand(GDK_WINDOW_XDISPLAY(gtk_widget_get_window(gui.mainwin)),
GDK_WINDOW_XID(gtk_widget_get_window(gui.mainwin)),
NULL, 0);
return GDK_FILTER_REMOVE;
}
return GDK_FILTER_CONTINUE;
}
#endif // !USE_GNOME_SESSION
/*
* Setup the window icon & xcmdsrv comm after the main window has been realized.
*/
static void
mainwin_realize(GtkWidget *widget UNUSED, gpointer data UNUSED)
{
#include "../runtime/vim32x32.xpm"
#include "../runtime/vim16x16.xpm"
#include "../runtime/vim48x48.xpm"
GdkWindow * const mainwin_win = gtk_widget_get_window(gui.mainwin);
// When started with "--echo-wid" argument, write window ID on stdout.
if (echo_wid_arg)
{
if (gui_mch_get_display())
printf("WID: %ld\n", (long)GDK_WINDOW_XID(mainwin_win));
else
printf("WID: 0\n");
fflush(stdout);
}
if (vim_strchr(p_go, GO_ICON) != NULL)
{
/*
* Add an icon to the main window. For fun and convenience of the user.
*/
GList *icons = NULL;
icons = g_list_prepend(icons, gdk_pixbuf_new_from_xpm_data((const char **)vim16x16));
icons = g_list_prepend(icons, gdk_pixbuf_new_from_xpm_data((const char **)vim32x32));
icons = g_list_prepend(icons, gdk_pixbuf_new_from_xpm_data((const char **)vim48x48));
gtk_window_set_icon_list(GTK_WINDOW(gui.mainwin), icons);
// TODO: is this type cast OK?
g_list_foreach(icons, (GFunc)(void *)&g_object_unref, NULL);
g_list_free(icons);
}
#if !defined(USE_GNOME_SESSION)
// Register a handler for WM_SAVE_YOURSELF with GDK's low-level X I/F
gdk_window_add_filter(NULL, &global_event_filter, NULL);
#endif
// Setup to indicate to the window manager that we want to catch the
// WM_SAVE_YOURSELF event. For GNOME, this connects to the session
// manager instead.
#if defined(USE_GNOME_SESSION)
if (using_gnome)
#endif
setup_save_yourself();
#ifdef FEAT_CLIENTSERVER
if (gui_mch_get_display())
{
if (serverName == NULL && serverDelayedStartName != NULL)
{
// This is a :gui command in a plain vim with no previous server
commWindow = GDK_WINDOW_XID(mainwin_win);
(void)serverRegisterName(GDK_WINDOW_XDISPLAY(mainwin_win),
serverDelayedStartName);
}
else
{
/*
* Cannot handle "XLib-only" windows with gtk event routines, we'll
* have to change the "server" registration to that of the main window
* If we have not registered a name yet, remember the window.
*/
serverChangeRegisteredWindow(GDK_WINDOW_XDISPLAY(mainwin_win),
GDK_WINDOW_XID(mainwin_win));
}
gtk_widget_add_events(gui.mainwin, GDK_PROPERTY_CHANGE_MASK);
g_signal_connect(G_OBJECT(gui.mainwin), "property-notify-event",
G_CALLBACK(property_event), NULL);
}
#endif
}
static GdkCursor *
create_blank_pointer(void)
{
GdkWindow *root_window = NULL;
#if GTK_CHECK_VERSION(3,0,0)
GdkPixbuf *blank_mask;
#else
GdkPixmap *blank_mask;
#endif
GdkCursor *cursor;
#if GTK_CHECK_VERSION(3,0,0)
GdkRGBA color = { 0.0, 0.0, 0.0, 0.0 };
#else
GdkColor color = { 0, 0, 0, 0 };
char blank_data[] = { 0x0 };
#endif
#if GTK_CHECK_VERSION(3,12,0)
{
GdkWindow * const win = gtk_widget_get_window(gui.mainwin);
GdkScreen * const scrn = gdk_window_get_screen(win);
root_window = gdk_screen_get_root_window(scrn);
}
#else
root_window = gtk_widget_get_root_window(gui.mainwin);
#endif
// Create a pseudo blank pointer, which is in fact one pixel by one pixel
// in size.
#if GTK_CHECK_VERSION(3,0,0)
{
cairo_surface_t *surf;
cairo_t *cr;
surf = cairo_image_surface_create(CAIRO_FORMAT_A1, 1, 1);
cr = cairo_create(surf);
cairo_set_source_rgba(cr,
color.red,
color.green,
color.blue,
color.alpha);
cairo_rectangle(cr, 0, 0, 1, 1);
cairo_fill(cr);
cairo_destroy(cr);
blank_mask = gdk_pixbuf_get_from_surface(surf, 0, 0, 1, 1);
cairo_surface_destroy(surf);
cursor = gdk_cursor_new_from_pixbuf(gdk_window_get_display(root_window),
blank_mask, 0, 0);
g_object_unref(blank_mask);
}
#else
blank_mask = gdk_bitmap_create_from_data(root_window, blank_data, 1, 1);
cursor = gdk_cursor_new_from_pixmap(blank_mask, blank_mask,
&color, &color, 0, 0);
gdk_bitmap_unref(blank_mask);
#endif
return cursor;
}
static void
mainwin_screen_changed_cb(GtkWidget *widget,
GdkScreen *previous_screen UNUSED,
gpointer data UNUSED)
{
if (!gtk_widget_has_screen(widget))
return;
/*
* Recreate the invisible mouse cursor.
*/
if (gui.blank_pointer != NULL)
#if GTK_CHECK_VERSION(3,0,0)
g_object_unref(G_OBJECT(gui.blank_pointer));
#else
gdk_cursor_unref(gui.blank_pointer);
#endif
gui.blank_pointer = create_blank_pointer();
if (gui.pointer_hidden && gtk_widget_get_window(gui.drawarea) != NULL)
gdk_window_set_cursor(gtk_widget_get_window(gui.drawarea),
gui.blank_pointer);
/*
* Create a new PangoContext for this screen, and initialize it
* with the current font if necessary.
*/
if (gui.text_context != NULL)
g_object_unref(gui.text_context);
gui.text_context = gtk_widget_create_pango_context(widget);
pango_context_set_base_dir(gui.text_context, PANGO_DIRECTION_LTR);
if (gui.norm_font != NULL)
{
gui_mch_init_font(p_guifont, FALSE);
gui_set_shellsize(TRUE, FALSE, RESIZE_BOTH);
}
}
/*
* After the drawing area comes up, we calculate all colors and create the
* dummy blank cursor.
*
* Don't try to set any VIM scrollbar sizes anywhere here. I'm relying on the
* fact that the main VIM engine doesn't take them into account anywhere.
*/
static void
drawarea_realize_cb(GtkWidget *widget, gpointer data UNUSED)
{
GtkWidget *sbar;
GtkAllocation allocation;
#ifdef FEAT_XIM
xim_init();
#endif
gui_mch_new_colors();
#if GTK_CHECK_VERSION(3,0,0)
gui.surface = gdk_window_create_similar_surface(
gtk_widget_get_window(widget),
CAIRO_CONTENT_COLOR_ALPHA,
gtk_widget_get_allocated_width(widget),
gtk_widget_get_allocated_height(widget));
#else
gui.text_gc = gdk_gc_new(gui.drawarea->window);
#endif
gui.blank_pointer = create_blank_pointer();
if (gui.pointer_hidden)
gdk_window_set_cursor(gtk_widget_get_window(widget), gui.blank_pointer);
// get the actual size of the scrollbars, if they are realized
sbar = firstwin->w_scrollbars[SBAR_LEFT].id;
if (!sbar || (!gui.which_scrollbars[SBAR_LEFT]
&& firstwin->w_scrollbars[SBAR_RIGHT].id))
sbar = firstwin->w_scrollbars[SBAR_RIGHT].id;
gtk_widget_get_allocation(sbar, &allocation);
if (sbar && gtk_widget_get_realized(sbar) && allocation.width)
gui.scrollbar_width = allocation.width;
sbar = gui.bottom_sbar.id;
if (sbar && gtk_widget_get_realized(sbar) && allocation.height)
gui.scrollbar_height = allocation.height;
}
/*
* Properly clean up on shutdown.
*/
static void
drawarea_unrealize_cb(GtkWidget *widget UNUSED, gpointer data UNUSED)
{
// Don't write messages to the GUI anymore
full_screen = FALSE;
#ifdef FEAT_XIM
im_shutdown();
#endif
if (gui.ascii_glyphs != NULL)
{
pango_glyph_string_free(gui.ascii_glyphs);
gui.ascii_glyphs = NULL;
}
if (gui.ascii_font != NULL)
{
g_object_unref(gui.ascii_font);
gui.ascii_font = NULL;
}
g_object_unref(gui.text_context);
gui.text_context = NULL;
#if GTK_CHECK_VERSION(3,0,0)
if (gui.surface != NULL)
{
cairo_surface_destroy(gui.surface);
gui.surface = NULL;
}
#else
g_object_unref(gui.text_gc);
gui.text_gc = NULL;
#endif
#if GTK_CHECK_VERSION(3,0,0)
g_object_unref(G_OBJECT(gui.blank_pointer));
#else
gdk_cursor_unref(gui.blank_pointer);
#endif
gui.blank_pointer = NULL;
}
#if GTK_CHECK_VERSION(3,22,2)
static void
drawarea_style_updated_cb(GtkWidget *widget UNUSED,
gpointer data UNUSED)
#else
static void
drawarea_style_set_cb(GtkWidget *widget UNUSED,
GtkStyle *previous_style UNUSED,
gpointer data UNUSED)
#endif
{
gui_mch_new_colors();
}
#if GTK_CHECK_VERSION(3,0,0)
static gboolean
drawarea_configure_event_cb(GtkWidget *widget,
GdkEventConfigure *event,
gpointer data UNUSED)
{
static int cur_width = 0;
static int cur_height = 0;
g_return_val_if_fail(event
&& event->width >= 1 && event->height >= 1, TRUE);
# if GTK_CHECK_VERSION(3,22,2) && !GTK_CHECK_VERSION(3,22,4)
// As of 3.22.2, GdkWindows have started distributing configure events to
// their "native" children (https://git.gnome.org/browse/gtk+/commit/?h=gtk-3-22&id=12579fe71b3b8f79eb9c1b80e429443bcc437dd0).
//
// As can be seen from the implementation of move_native_children() and
// configure_native_child() in gdkwindow.c, those functions actually
// propagate configure events to every child, failing to distinguish
// "native" one from non-native one.
//
// Naturally, configure events propagated to here like that are fallacious
// and, as a matter of fact, they trigger a geometric collapse of
// gui.drawarea in fullscreen and maximized modes.
//
// To filter out such nuisance events, we are making use of the fact that
// the field send_event of such GdkEventConfigures is set to FALSE in
// configure_native_child().
//
// Obviously, this is a terrible hack making GVim depend on GTK's
// implementation details. Therefore, watch out any relevant internal
// changes happening in GTK in the feature (sigh).
//
// Follow-up
// After a few weeks later, the GdkWindow change mentioned above was
// reverted (https://git.gnome.org/browse/gtk+/commit/?h=gtk-3-22&id=f70039cb9603a02d2369fec4038abf40a1711155).
// The corresponding official release is 3.22.4.
if (event->send_event == FALSE)
return TRUE;
# endif
if (event->width == cur_width && event->height == cur_height)
return TRUE;
cur_width = event->width;
cur_height = event->height;
if (gui.surface != NULL)
cairo_surface_destroy(gui.surface);
gui.surface = gdk_window_create_similar_surface(
gtk_widget_get_window(widget),
CAIRO_CONTENT_COLOR_ALPHA,
event->width, event->height);
gtk_widget_queue_draw(widget);
return TRUE;
}
#endif
/*
* Callback routine for the "delete_event" signal on the toplevel window.
* Tries to vim gracefully, or refuses to exit with changed buffers.
*/
static gint
delete_event_cb(GtkWidget *widget UNUSED,
GdkEventAny *event UNUSED,
gpointer data UNUSED)
{
gui_shell_closed();
return TRUE;
}
#if defined(FEAT_MENU) || defined(FEAT_TOOLBAR) || defined(FEAT_GUI_TABLINE)
static int
get_item_dimensions(GtkWidget *widget, GtkOrientation orientation)
{
# ifdef FEAT_GUI_GNOME
GtkOrientation item_orientation = GTK_ORIENTATION_HORIZONTAL;
if (using_gnome && widget != NULL)
{
GtkWidget *parent;
BonoboDockItem *dockitem;
parent = gtk_widget_get_parent(widget);
if (G_TYPE_FROM_INSTANCE(parent) == BONOBO_TYPE_DOCK_ITEM)
{
// Only menu & toolbar are dock items. Could tabline be?
// Seem to be only the 2 defined in GNOME
widget = parent;
dockitem = BONOBO_DOCK_ITEM(widget);
if (dockitem == NULL || dockitem->is_floating)
return 0;
item_orientation = bonobo_dock_item_get_orientation(dockitem);
}
}
# else
# define item_orientation GTK_ORIENTATION_HORIZONTAL
# endif
if (widget != NULL
&& item_orientation == orientation
&& gtk_widget_get_realized(widget)
&& gtk_widget_get_visible(widget))
{
# if GTK_CHECK_VERSION(3,0,0) || !defined(FEAT_GUI_GNOME)
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
return allocation.height;
# else
if (orientation == GTK_ORIENTATION_HORIZONTAL)
return widget->allocation.height;
else
return widget->allocation.width;
# endif
}
return 0;
}
#endif
static int
get_menu_tool_width(void)
{
int width = 0;
#ifdef FEAT_GUI_GNOME // these are never vertical without GNOME
# ifdef FEAT_MENU
width += get_item_dimensions(gui.menubar, GTK_ORIENTATION_VERTICAL);
# endif
# ifdef FEAT_TOOLBAR
width += get_item_dimensions(gui.toolbar, GTK_ORIENTATION_VERTICAL);
# endif
# ifdef FEAT_GUI_TABLINE
if (gui.tabline != NULL)
width += get_item_dimensions(gui.tabline, GTK_ORIENTATION_VERTICAL);
# endif
#endif
return width;
}
static int
get_menu_tool_height(void)
{
int height = 0;
#ifdef FEAT_MENU
height += get_item_dimensions(gui.menubar, GTK_ORIENTATION_HORIZONTAL);
#endif
#ifdef FEAT_TOOLBAR
height += get_item_dimensions(gui.toolbar, GTK_ORIENTATION_HORIZONTAL);
#endif
#ifdef FEAT_GUI_TABLINE
if (gui.tabline != NULL)
height += get_item_dimensions(gui.tabline, GTK_ORIENTATION_HORIZONTAL);
#endif
return height;
}
// This controls whether we can set the real window hints at
// start-up when in a GtkPlug.
// 0 = normal processing (default)
// 1 = init. hints set, no-one's tried to reset since last check
// 2 = init. hints set, attempt made to change hints
static int init_window_hints_state = 0;
static void
update_window_manager_hints(int force_width, int force_height)
{
static int old_width = 0;
static int old_height = 0;
static int old_min_width = 0;
static int old_min_height = 0;
static int old_char_width = 0;
static int old_char_height = 0;
int width;
int height;
int min_width;
int min_height;
// At start-up, don't try to set the hints until the initial
// values have been used (those that dictate our initial size)
// Let forced (i.e., correct) values through always.
if (!(force_width && force_height) && init_window_hints_state > 0)
{
// Don't do it!
init_window_hints_state = 2;
return;
}
// This also needs to be done when the main window isn't there yet,
// otherwise the hints don't work.
width = gui_get_base_width();
height = gui_get_base_height();
# ifdef FEAT_MENU
height += tabline_height() * gui.char_height;
# endif
width += get_menu_tool_width();
height += get_menu_tool_height();
// GtkSockets use GtkPlug's [gui,mainwin] min-size hints to determine
// their actual widget size. When we set our size ourselves (e.g.,
// 'set columns=' or init. -geom) we briefly set the min. to the size
// we wish to be instead of the legitimate minimum so that we actually
// resize correctly.
if (force_width && force_height)
{
min_width = force_width;
min_height = force_height;
}
else
{
min_width = width + MIN_COLUMNS * gui.char_width;
min_height = height + MIN_LINES * gui.char_height;
}
// Avoid an expose event when the size didn't change.
if (width != old_width
|| height != old_height
|| min_width != old_min_width
|| min_height != old_min_height
|| gui.char_width != old_char_width
|| gui.char_height != old_char_height)
{
GdkGeometry geometry;
GdkWindowHints geometry_mask;
geometry.width_inc = gui.char_width;
geometry.height_inc = gui.char_height;
geometry.base_width = width;
geometry.base_height = height;
geometry.min_width = min_width;
geometry.min_height = min_height;
geometry_mask = GDK_HINT_BASE_SIZE|GDK_HINT_RESIZE_INC
|GDK_HINT_MIN_SIZE;
// Using gui.formwin as geometry widget doesn't work as expected
// with GTK+ 2 -- dunno why. Presumably all the resizing hacks
// in Vim confuse GTK+. For GTK 3 the second argument should be NULL
// to make the width/height inc works, despite the docs saying
// something else.
gtk_window_set_geometry_hints(GTK_WINDOW(gui.mainwin), NULL,
&geometry, geometry_mask);
old_width = width;
old_height = height;
old_min_width = min_width;
old_min_height = min_height;
old_char_width = gui.char_width;
old_char_height = gui.char_height;
}
}
#if defined(FEAT_GUI_DARKTHEME) || defined(PROTO)
void
gui_mch_set_dark_theme(int dark)
{
# if GTK_CHECK_VERSION(3,0,0)
GtkSettings *gtk_settings;
gtk_settings = gtk_settings_get_for_screen(gdk_screen_get_default());
g_object_set(gtk_settings, "gtk-application-prefer-dark-theme", (gboolean)dark, NULL);
# endif
}
#endif // FEAT_GUI_DARKTHEME
#ifdef FEAT_TOOLBAR
/*
* This extra effort wouldn't be necessary if we only used stock icons in the
* toolbar, as we do for all builtin icons. But user-defined toolbar icons
* shouldn't be treated differently, thus we do need this.
*/
static void
icon_size_changed_foreach(GtkWidget *widget, gpointer user_data)
{
if (GTK_IS_IMAGE(widget))
{
GtkImage *image = (GtkImage *)widget;
# if GTK_CHECK_VERSION(3,10,0)
if (gtk_image_get_storage_type(image) == GTK_IMAGE_ICON_NAME)
{
const GtkIconSize icon_size = GPOINTER_TO_INT(user_data);
const gchar *icon_name;
gtk_image_get_icon_name(image, &icon_name, NULL);
image = (GtkImage *)gtk_image_new_from_icon_name(
icon_name, icon_size);
}
# else
// User-defined icons are stored in a GtkIconSet
if (gtk_image_get_storage_type(image) == GTK_IMAGE_ICON_SET)
{
GtkIconSet *icon_set;
GtkIconSize icon_size;
gtk_image_get_icon_set(image, &icon_set, &icon_size);
icon_size = (GtkIconSize)(long)user_data;
gtk_icon_set_ref(icon_set);
gtk_image_set_from_icon_set(image, icon_set, icon_size);
gtk_icon_set_unref(icon_set);
}
# endif
}
else if (GTK_IS_CONTAINER(widget))
{
gtk_container_foreach((GtkContainer *)widget,
&icon_size_changed_foreach,
user_data);
}
}
static void
set_toolbar_style(GtkToolbar *toolbar)
{
GtkToolbarStyle style;
GtkIconSize size;
GtkIconSize oldsize;
if ((toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS | TOOLBAR_HORIZ))
== (TOOLBAR_TEXT | TOOLBAR_ICONS | TOOLBAR_HORIZ))
style = GTK_TOOLBAR_BOTH_HORIZ;
else if ((toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS))
== (TOOLBAR_TEXT | TOOLBAR_ICONS))
style = GTK_TOOLBAR_BOTH;
else if (toolbar_flags & TOOLBAR_TEXT)
style = GTK_TOOLBAR_TEXT;
else
style = GTK_TOOLBAR_ICONS;
gtk_toolbar_set_style(toolbar, style);
# if !GTK_CHECK_VERSION(3,0,0)
gtk_toolbar_set_tooltips(toolbar, (toolbar_flags & TOOLBAR_TOOLTIPS) != 0);
# endif
switch (tbis_flags)
{
case TBIS_TINY: size = GTK_ICON_SIZE_MENU; break;
case TBIS_SMALL: size = GTK_ICON_SIZE_SMALL_TOOLBAR; break;
case TBIS_MEDIUM: size = GTK_ICON_SIZE_BUTTON; break;
case TBIS_LARGE: size = GTK_ICON_SIZE_LARGE_TOOLBAR; break;
case TBIS_HUGE: size = GTK_ICON_SIZE_DND; break;
case TBIS_GIANT: size = GTK_ICON_SIZE_DIALOG; break;
default: size = GTK_ICON_SIZE_INVALID; break;
}
oldsize = gtk_toolbar_get_icon_size(toolbar);
if (size == GTK_ICON_SIZE_INVALID)
{
// Let global user preferences decide the icon size.
gtk_toolbar_unset_icon_size(toolbar);
size = gtk_toolbar_get_icon_size(toolbar);
}
if (size != oldsize)
{
gtk_container_foreach(GTK_CONTAINER(toolbar),
&icon_size_changed_foreach,
GINT_TO_POINTER((int)size));
}
gtk_toolbar_set_icon_size(toolbar, size);
}
#endif // FEAT_TOOLBAR
#if defined(FEAT_GUI_TABLINE) || defined(PROTO)
static int ignore_tabline_evt = FALSE;
static GtkWidget *tabline_menu;
# if !GTK_CHECK_VERSION(3,0,0)
static GtkTooltips *tabline_tooltip;
# endif
static int clicked_page; // page clicked in tab line
/*
* Handle selecting an item in the tab line popup menu.
*/
static void
tabline_menu_handler(GtkMenuItem *item UNUSED, gpointer user_data)
{
// Add the string cmd into input buffer
send_tabline_menu_event(clicked_page, (int)(long)user_data);
}
static void
add_tabline_menu_item(GtkWidget *menu, char_u *text, int resp)
{
GtkWidget *item;
char_u *utf_text;
utf_text = CONVERT_TO_UTF8(text);
item = gtk_menu_item_new_with_label((const char *)utf_text);
gtk_widget_show(item);
CONVERT_TO_UTF8_FREE(utf_text);
gtk_container_add(GTK_CONTAINER(menu), item);
g_signal_connect(G_OBJECT(item), "activate",
G_CALLBACK(tabline_menu_handler),
GINT_TO_POINTER(resp));
}
/*
* Create a menu for the tab line.
*/
static GtkWidget *
create_tabline_menu(void)
{
GtkWidget *menu;
menu = gtk_menu_new();
add_tabline_menu_item(menu, (char_u *)_("Close tab"), TABLINE_MENU_CLOSE);
add_tabline_menu_item(menu, (char_u *)_("New tab"), TABLINE_MENU_NEW);
add_tabline_menu_item(menu, (char_u *)_("Open Tab..."), TABLINE_MENU_OPEN);
return menu;
}
static gboolean
on_tabline_menu(GtkWidget *widget, GdkEvent *event)
{
// Was this button press event ?
if (event->type == GDK_BUTTON_PRESS)
{
GdkEventButton *bevent = (GdkEventButton *)event;
int x = bevent->x;
int y = bevent->y;
GtkWidget *tabwidget;
GdkWindow *tabwin;
// When ignoring events return TRUE so that the selected page doesn't
// change.
if (hold_gui_events || cmdwin_type != 0)
return TRUE;
tabwin = gui_gtk_window_at_position(gui.mainwin, &x, &y);
gdk_window_get_user_data(tabwin, (gpointer)&tabwidget);
clicked_page = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(tabwidget),
"tab_num"));
// If the event was generated for 3rd button popup the menu.
if (bevent->button == 3)
{
# if GTK_CHECK_VERSION(3,22,2)
gtk_menu_popup_at_pointer(GTK_MENU(widget), event);
# else
gtk_menu_popup(GTK_MENU(widget), NULL, NULL, NULL, NULL,
bevent->button, bevent->time);
# endif
// We handled the event.
return TRUE;
}
else if (bevent->button == 1)
{
if (clicked_page == 0)
{
// Click after all tabs moves to next tab page. When "x" is
// small guess it's the left button.
send_tabline_event(x < 50 ? -1 : 0);
}
}
else if (bevent->button == 2)
{
if (clicked_page != 0)
// Middle mouse click on tabpage label closes that tab.
send_tabline_menu_event(clicked_page, TABLINE_MENU_CLOSE);
}
}
// We didn't handle the event.
return FALSE;
}
/*
* Handle selecting one of the tabs.
*/
static void
on_select_tab(
GtkNotebook *notebook UNUSED,
gpointer *page UNUSED,
gint idx,
gpointer data UNUSED)
{
if (!ignore_tabline_evt)
send_tabline_event(idx + 1);
}
# if GTK_CHECK_VERSION(2,10,0)
/*
* Handle reordering the tabs (using D&D).
*/
static void
on_tab_reordered(
GtkNotebook *notebook UNUSED,
gpointer *page UNUSED,
gint idx,
gpointer data UNUSED)
{
if (ignore_tabline_evt)
return;
if ((tabpage_index(curtab) - 1) < idx)
tabpage_move(idx + 1);
else
tabpage_move(idx);
}
# endif
/*
* Show or hide the tabline.
*/
void
gui_mch_show_tabline(int showit)
{
if (gui.tabline == NULL)
return;
if (!showit != !gtk_notebook_get_show_tabs(GTK_NOTEBOOK(gui.tabline)))
{
// Note: this may cause a resize event
gtk_notebook_set_show_tabs(GTK_NOTEBOOK(gui.tabline), showit);
update_window_manager_hints(0, 0);
if (showit)
gtk_widget_set_can_focus(GTK_WIDGET(gui.tabline), FALSE);
}
gui_mch_update();
}
/*
* Return TRUE when tabline is displayed.
*/
int
gui_mch_showing_tabline(void)
{
return gui.tabline != NULL
&& gtk_notebook_get_show_tabs(GTK_NOTEBOOK(gui.tabline));
}
/*
* Update the labels of the tabline.
*/
void
gui_mch_update_tabline(void)
{
GtkWidget *page;
GtkWidget *event_box;
GtkWidget *label;
tabpage_T *tp;
int nr = 0;
int tab_num;
int curtabidx = 0;
char_u *labeltext;
if (gui.tabline == NULL)
return;
ignore_tabline_evt = TRUE;
// Add a label for each tab page. They all contain the same text area.
for (tp = first_tabpage; tp != NULL; tp = tp->tp_next, ++nr)
{
if (tp == curtab)
curtabidx = nr;
tab_num = nr + 1;
page = gtk_notebook_get_nth_page(GTK_NOTEBOOK(gui.tabline), nr);
if (page == NULL)
{
// Add notebook page
# if GTK_CHECK_VERSION(3,2,0)
page = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_box_set_homogeneous(GTK_BOX(page), FALSE);
# else
page = gtk_vbox_new(FALSE, 0);
# endif
gtk_widget_show(page);
event_box = gtk_event_box_new();
gtk_widget_show(event_box);
label = gtk_label_new("-Empty-");
# if !GTK_CHECK_VERSION(3,14,0)
gtk_misc_set_padding(GTK_MISC(label), 2, 2);
# endif
gtk_container_add(GTK_CONTAINER(event_box), label);
gtk_widget_show(label);
gtk_notebook_insert_page(GTK_NOTEBOOK(gui.tabline),
page,
event_box,
nr++);
# if GTK_CHECK_VERSION(2,10,0)
gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(gui.tabline),
page,
TRUE);
# endif
}
event_box = gtk_notebook_get_tab_label(GTK_NOTEBOOK(gui.tabline), page);
g_object_set_data(G_OBJECT(event_box), "tab_num",
GINT_TO_POINTER(tab_num));
label = gtk_bin_get_child(GTK_BIN(event_box));
get_tabline_label(tp, FALSE);
labeltext = CONVERT_TO_UTF8(NameBuff);
gtk_label_set_text(GTK_LABEL(label), (const char *)labeltext);
CONVERT_TO_UTF8_FREE(labeltext);
get_tabline_label(tp, TRUE);
labeltext = CONVERT_TO_UTF8(NameBuff);
# if GTK_CHECK_VERSION(3,0,0)
gtk_widget_set_tooltip_text(event_box, (const gchar *)labeltext);
# else
gtk_tooltips_set_tip(GTK_TOOLTIPS(tabline_tooltip), event_box,
(const char *)labeltext, NULL);
# endif
CONVERT_TO_UTF8_FREE(labeltext);
}
// Remove any old labels.
while (gtk_notebook_get_nth_page(GTK_NOTEBOOK(gui.tabline), nr) != NULL)
gtk_notebook_remove_page(GTK_NOTEBOOK(gui.tabline), nr);
if (gtk_notebook_get_current_page(GTK_NOTEBOOK(gui.tabline)) != curtabidx)
gtk_notebook_set_current_page(GTK_NOTEBOOK(gui.tabline), curtabidx);
// Make sure everything is in place before drawing text.
gui_mch_update();
ignore_tabline_evt = FALSE;
}
/*
* Set the current tab to "nr". First tab is 1.
*/
void
gui_mch_set_curtab(int nr)
{
if (gui.tabline == NULL)
return;
ignore_tabline_evt = TRUE;
if (gtk_notebook_get_current_page(GTK_NOTEBOOK(gui.tabline)) != nr - 1)
gtk_notebook_set_current_page(GTK_NOTEBOOK(gui.tabline), nr - 1);
ignore_tabline_evt = FALSE;
}
#endif // FEAT_GUI_TABLINE
/*
* Add selection targets for PRIMARY and CLIPBOARD selections.
*/
void
gui_gtk_set_selection_targets(GdkAtom selection)
{
int i, j = 0;
static int n_targets = N_SELECTION_TARGETS;
static GtkTargetEntry targets[N_SELECTION_TARGETS];
if (targets[0].target == NULL)
{
for (i = 0; i < (int)N_SELECTION_TARGETS; ++i)
{
// OpenOffice tries to use TARGET_HTML and fails when we don't
// return something, instead of trying another target. Therefore only
// offer TARGET_HTML when it works.
if (!clip_html && selection_targets[i].info == TARGET_HTML)
n_targets--;
else
targets[j++] = selection_targets[i];
}
}
gtk_selection_clear_targets(gui.drawarea, selection);
gtk_selection_add_targets(gui.drawarea, selection,
targets, n_targets);
}
/*
* Set up for receiving DND items.
*/
void
gui_gtk_set_dnd_targets(void)
{
int i, j = 0;
int n_targets = N_DND_TARGETS;
GtkTargetEntry targets[N_DND_TARGETS];
for (i = 0; i < (int)N_DND_TARGETS; ++i)
{
if (!clip_html && dnd_targets[i].info == TARGET_HTML)
n_targets--;
else
targets[j++] = dnd_targets[i];
}
gtk_drag_dest_unset(gui.drawarea);
gtk_drag_dest_set(gui.drawarea,
GTK_DEST_DEFAULT_ALL,
targets, n_targets,
GDK_ACTION_COPY | GDK_ACTION_MOVE);
}
/*
* Initialize the GUI. Create all the windows, set up all the callbacks etc.
* Returns OK for success, FAIL when the GUI can't be started.
*/
int
gui_mch_init(void)
{
GtkWidget *vbox;
#ifdef FEAT_GUI_GNOME
// Initialize the GNOME libraries. gnome_program_init()/gnome_init()
// exits on failure, but that's a non-issue because we already called
// gtk_init_check() in gui_mch_init_check().
if (using_gnome)
{
gnome_program_init(VIMPACKAGE, VIM_VERSION_SHORT,
LIBGNOMEUI_MODULE, gui_argc, gui_argv, NULL);
# if defined(LC_NUMERIC)
{
char *p = setlocale(LC_NUMERIC, NULL);
// Make sure strtod() uses a decimal point, not a comma. Gnome
// init may change it.
if (p == NULL || strcmp(p, "C") != 0)
setlocale(LC_NUMERIC, "C");
}
# endif
}
#endif
VIM_CLEAR(gui_argv);
#if GLIB_CHECK_VERSION(2,1,3)
// Set the human-readable application name
g_set_application_name("Vim");
#endif
/*
* Force UTF-8 output no matter what the value of 'encoding' is.
* did_set_string_option() in option.c prohibits changing 'termencoding'
* to something else than UTF-8 if the GUI is in use.
*/
set_option_value_give_err((char_u *)"termencoding",
0L, (char_u *)"utf-8", 0);
#ifdef FEAT_TOOLBAR
gui_gtk_register_stock_icons();
#endif
// FIXME: Need to install the classic icons and a gtkrc.classic file.
// The hard part is deciding install locations and the Makefile magic.
#if !GTK_CHECK_VERSION(3,0,0)
# if 0
gtk_rc_parse("gtkrc");
# endif
#endif
// Initialize values
gui.border_width = 2;
gui.scrollbar_width = SB_DEFAULT_WIDTH;
gui.scrollbar_height = SB_DEFAULT_WIDTH;
#if GTK_CHECK_VERSION(3,0,0)
gui.fgcolor = g_new(GdkRGBA, 1);
gui.bgcolor = g_new(GdkRGBA, 1);
gui.spcolor = g_new(GdkRGBA, 1);
#else
// LINTED: avoid warning: conversion to 'unsigned long'
gui.fgcolor = g_new0(GdkColor, 1);
// LINTED: avoid warning: conversion to 'unsigned long'
gui.bgcolor = g_new0(GdkColor, 1);
// LINTED: avoid warning: conversion to 'unsigned long'
gui.spcolor = g_new0(GdkColor, 1);
#endif
// Initialise atoms
html_atom = gdk_atom_intern("text/html", FALSE);
utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
// Set default foreground and background colors.
gui.norm_pixel = gui.def_norm_pixel;
gui.back_pixel = gui.def_back_pixel;
if (gtk_socket_id != 0)
{
GtkWidget *plug;
// Use GtkSocket from another app.
plug = gtk_plug_new_for_display(gdk_display_get_default(),
gtk_socket_id);
if (plug != NULL && gtk_plug_get_socket_window(GTK_PLUG(plug)) != NULL)
{
gui.mainwin = plug;
}
else
{
g_warning("Connection to GTK+ socket (ID %u) failed",
(unsigned int)gtk_socket_id);
// Pretend we never wanted it if it failed (get own window)
gtk_socket_id = 0;
}
}
if (gtk_socket_id == 0)
{
#ifdef FEAT_GUI_GNOME
if (using_gnome)
{
gui.mainwin = gnome_app_new("Vim", NULL);
# ifdef USE_XSMP
// Use the GNOME save-yourself functionality now.
xsmp_close();
# endif
}
else
#endif
gui.mainwin = gtk_window_new(GTK_WINDOW_TOPLEVEL);
}
gtk_widget_set_name(gui.mainwin, "vim-main-window");
// Create the PangoContext used for drawing all text.
gui.text_context = gtk_widget_create_pango_context(gui.mainwin);
pango_context_set_base_dir(gui.text_context, PANGO_DIRECTION_LTR);
gtk_container_set_border_width(GTK_CONTAINER(gui.mainwin), 0);
gtk_widget_add_events(gui.mainwin, GDK_VISIBILITY_NOTIFY_MASK);
g_signal_connect(G_OBJECT(gui.mainwin), "delete-event",
G_CALLBACK(&delete_event_cb), NULL);
g_signal_connect(G_OBJECT(gui.mainwin), "realize",
G_CALLBACK(&mainwin_realize), NULL);
g_signal_connect(G_OBJECT(gui.mainwin), "screen-changed",
G_CALLBACK(&mainwin_screen_changed_cb), NULL);
gui.accel_group = gtk_accel_group_new();
gtk_window_add_accel_group(GTK_WINDOW(gui.mainwin), gui.accel_group);
// A vertical box holds the menubar, toolbar and main text window.
#if GTK_CHECK_VERSION(3,2,0)
vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_box_set_homogeneous(GTK_BOX(vbox), FALSE);
#else
vbox = gtk_vbox_new(FALSE, 0);
#endif
#ifdef FEAT_GUI_GNOME
if (using_gnome)
{
# if defined(FEAT_MENU)
// automagically restore menubar/toolbar placement
gnome_app_enable_layout_config(GNOME_APP(gui.mainwin), TRUE);
# endif
gnome_app_set_contents(GNOME_APP(gui.mainwin), vbox);
}
else
#endif
{
gtk_container_add(GTK_CONTAINER(gui.mainwin), vbox);
gtk_widget_show(vbox);
}
#ifdef FEAT_MENU
/*
* Create the menubar and handle
*/
gui.menubar = gtk_menu_bar_new();
gtk_widget_set_name(gui.menubar, "vim-menubar");
// Avoid that GTK takes <F10> away from us.
{
GtkSettings *gtk_settings;
gtk_settings = gtk_settings_get_for_screen(gdk_screen_get_default());
g_object_set(gtk_settings, "gtk-menu-bar-accel", NULL, NULL);
}
# ifdef FEAT_GUI_GNOME
if (using_gnome)
{
BonoboDockItem *dockitem;
gnome_app_set_menus(GNOME_APP(gui.mainwin), GTK_MENU_BAR(gui.menubar));
dockitem = gnome_app_get_dock_item_by_name(GNOME_APP(gui.mainwin),
GNOME_APP_MENUBAR_NAME);
// We don't want the menu to float.
bonobo_dock_item_set_behavior(dockitem,
bonobo_dock_item_get_behavior(dockitem)
| BONOBO_DOCK_ITEM_BEH_NEVER_FLOATING);
gui.menubar_h = GTK_WIDGET(dockitem);
}
else
# endif // FEAT_GUI_GNOME
{
// Always show the menubar, otherwise <F10> doesn't work. It may be
// disabled in gui_init() later.
gtk_widget_show(gui.menubar);
gtk_box_pack_start(GTK_BOX(vbox), gui.menubar, FALSE, FALSE, 0);
}
#endif // FEAT_MENU
#ifdef FEAT_TOOLBAR
/*
* Create the toolbar and handle
*/
// some aesthetics on the toolbar
# ifdef USE_GTK3
// TODO: Add GTK+ 3 code here using GtkCssProvider if necessary.
// N.B. Since the default value of GtkToolbar::button-relief is
// GTK_RELIEF_NONE, there's no need to specify that, probably.
# else
gtk_rc_parse_string(
"style \"vim-toolbar-style\" {\n"
" GtkToolbar::button_relief = GTK_RELIEF_NONE\n"
"}\n"
"widget \"*.vim-toolbar\" style \"vim-toolbar-style\"\n");
# endif
gui.toolbar = gtk_toolbar_new();
gtk_widget_set_name(gui.toolbar, "vim-toolbar");
set_toolbar_style(GTK_TOOLBAR(gui.toolbar));
# ifdef FEAT_GUI_GNOME
if (using_gnome)
{
BonoboDockItem *dockitem;
gnome_app_set_toolbar(GNOME_APP(gui.mainwin), GTK_TOOLBAR(gui.toolbar));
dockitem = gnome_app_get_dock_item_by_name(GNOME_APP(gui.mainwin),
GNOME_APP_TOOLBAR_NAME);
gui.toolbar_h = GTK_WIDGET(dockitem);
// When the toolbar is floating it gets stuck. So long as that isn't
// fixed let's disallow floating.
bonobo_dock_item_set_behavior(dockitem,
bonobo_dock_item_get_behavior(dockitem)
| BONOBO_DOCK_ITEM_BEH_NEVER_FLOATING);
gtk_container_set_border_width(GTK_CONTAINER(gui.toolbar), 0);
}
else
# endif // FEAT_GUI_GNOME
{
if (vim_strchr(p_go, GO_TOOLBAR) != NULL
&& (toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS)))
gtk_widget_show(gui.toolbar);
gtk_box_pack_start(GTK_BOX(vbox), gui.toolbar, FALSE, FALSE, 0);
}
#endif // FEAT_TOOLBAR
#ifdef FEAT_GUI_TABLINE
/*
* Use a Notebook for the tab pages labels. The labels are hidden by
* default.
*/
gui.tabline = gtk_notebook_new();
gtk_widget_show(gui.tabline);
gtk_box_pack_start(GTK_BOX(vbox), gui.tabline, FALSE, FALSE, 0);
gtk_notebook_set_show_border(GTK_NOTEBOOK(gui.tabline), FALSE);
gtk_notebook_set_show_tabs(GTK_NOTEBOOK(gui.tabline), FALSE);
gtk_notebook_set_scrollable(GTK_NOTEBOOK(gui.tabline), TRUE);
# if !GTK_CHECK_VERSION(3,0,0)
gtk_notebook_set_tab_border(GTK_NOTEBOOK(gui.tabline), FALSE);
# endif
# if !GTK_CHECK_VERSION(3,0,0)
tabline_tooltip = gtk_tooltips_new();
gtk_tooltips_enable(GTK_TOOLTIPS(tabline_tooltip));
# endif
{
GtkWidget *page, *label, *event_box;
// Add the first tab.
# if GTK_CHECK_VERSION(3,2,0)
page = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_box_set_homogeneous(GTK_BOX(page), FALSE);
# else
page = gtk_vbox_new(FALSE, 0);
# endif
gtk_widget_show(page);
gtk_container_add(GTK_CONTAINER(gui.tabline), page);
label = gtk_label_new("-Empty-");
gtk_widget_show(label);
event_box = gtk_event_box_new();
gtk_widget_show(event_box);
g_object_set_data(G_OBJECT(event_box), "tab_num", GINT_TO_POINTER(1L));
# if !GTK_CHECK_VERSION(3,14,0)
gtk_misc_set_padding(GTK_MISC(label), 2, 2);
# endif
gtk_container_add(GTK_CONTAINER(event_box), label);
gtk_notebook_set_tab_label(GTK_NOTEBOOK(gui.tabline), page, event_box);
# if GTK_CHECK_VERSION(2,10,0)
gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(gui.tabline), page, TRUE);
# endif
}
g_signal_connect(G_OBJECT(gui.tabline), "switch-page",
G_CALLBACK(on_select_tab), NULL);
# if GTK_CHECK_VERSION(2,10,0)
g_signal_connect(G_OBJECT(gui.tabline), "page-reordered",
G_CALLBACK(on_tab_reordered), NULL);
# endif
// Create a popup menu for the tab line and connect it.
tabline_menu = create_tabline_menu();
g_signal_connect_swapped(G_OBJECT(gui.tabline), "button-press-event",
G_CALLBACK(on_tabline_menu), G_OBJECT(tabline_menu));
#endif // FEAT_GUI_TABLINE
gui.formwin = gui_gtk_form_new();
gtk_container_set_border_width(GTK_CONTAINER(gui.formwin), 0);
#if !GTK_CHECK_VERSION(3,0,0)
gtk_widget_set_events(gui.formwin, GDK_EXPOSURE_MASK);
#endif
#if GTK_CHECK_VERSION(3,22,2)
gtk_widget_set_name(gui.formwin, "vim-gtk-form");
#endif
gui.drawarea = gtk_drawing_area_new();
#if GTK_CHECK_VERSION(3,0,0)
gui.surface = NULL;
#endif
// Determine which events we will filter.
gint event_mask =
GDK_EXPOSURE_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_KEY_PRESS_MASK |
GDK_KEY_RELEASE_MASK |
GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK;
#if GTK_CHECK_VERSION(3,4,0)
if (GDK_IS_X11_DISPLAY(gdk_display_get_default()))
{
// for X11, if we were using smooth scroll events, we
// would get an scroll without deltas on the very first user scroll* and
// get both "unsmooth" scroll and smooth scroll events after
// copying into the primary selection
//
// *: https://bugzilla.gnome.org/show_bug.cgi?id=675959
event_mask |= GDK_SCROLL_MASK;
}
else
{
// for Wayland, touchpads don't generate "unsmooth" scroll events. Both
// touchpads and wheels generate smooth scroll events expectedly.
event_mask |= GDK_SMOOTH_SCROLL_MASK;
}
#else
event_mask |= GDK_SCROLL_MASK;
#endif
gtk_widget_set_events(gui.drawarea, event_mask);
gtk_widget_show(gui.drawarea);
gui_gtk_form_put(GTK_FORM(gui.formwin), gui.drawarea, 0, 0);
gtk_widget_show(gui.formwin);
gtk_box_pack_start(GTK_BOX(vbox), gui.formwin, TRUE, TRUE, 0);
// For GtkSockets, key-presses must go to the focus widget (drawarea)
// and not the window.
g_signal_connect((gtk_socket_id == 0) ? G_OBJECT(gui.mainwin)
: G_OBJECT(gui.drawarea),
"key-press-event",
G_CALLBACK(key_press_event), NULL);
#if defined(FEAT_XIM) || GTK_CHECK_VERSION(3,0,0)
// Also forward key release events for the benefit of GTK+ 2 input
// modules. Try CTRL-SHIFT-xdigits to enter a Unicode code point.
g_signal_connect((gtk_socket_id == 0) ? G_OBJECT(gui.mainwin)
: G_OBJECT(gui.drawarea),
"key-release-event",
G_CALLBACK(&key_release_event), NULL);
#endif
g_signal_connect(G_OBJECT(gui.drawarea), "realize",
G_CALLBACK(drawarea_realize_cb), NULL);
g_signal_connect(G_OBJECT(gui.drawarea), "unrealize",
G_CALLBACK(drawarea_unrealize_cb), NULL);
#if GTK_CHECK_VERSION(3,0,0)
g_signal_connect(G_OBJECT(gui.drawarea), "configure-event",
G_CALLBACK(drawarea_configure_event_cb), NULL);
#endif
#if GTK_CHECK_VERSION(3,22,2)
g_signal_connect_after(G_OBJECT(gui.drawarea), "style-updated",
G_CALLBACK(&drawarea_style_updated_cb), NULL);
#else
g_signal_connect_after(G_OBJECT(gui.drawarea), "style-set",
G_CALLBACK(&drawarea_style_set_cb), NULL);
#endif
#if !GTK_CHECK_VERSION(3,0,0)
gui.visibility = GDK_VISIBILITY_UNOBSCURED;
#endif
#if !defined(USE_GNOME_SESSION)
wm_protocols_atom = gdk_atom_intern("WM_PROTOCOLS", FALSE);
save_yourself_atom = gdk_atom_intern("WM_SAVE_YOURSELF", FALSE);
#endif
if (gtk_socket_id != 0)
// make sure keyboard input can go to the drawarea
gtk_widget_set_can_focus(gui.drawarea, TRUE);
/*
* Set clipboard specific atoms
*/
vim_atom = gdk_atom_intern(VIM_ATOM_NAME, FALSE);
vimenc_atom = gdk_atom_intern(VIMENC_ATOM_NAME, FALSE);
clip_star.gtk_sel_atom = GDK_SELECTION_PRIMARY;
clip_plus.gtk_sel_atom = gdk_atom_intern("CLIPBOARD", FALSE);
/*
* Start out by adding the configured border width into the border offset.
*/
gui.border_offset = gui.border_width;
#if GTK_CHECK_VERSION(3,0,0)
g_signal_connect(G_OBJECT(gui.drawarea), "draw",
G_CALLBACK(draw_event), NULL);
#else
gtk_signal_connect(GTK_OBJECT(gui.mainwin), "visibility_notify_event",
GTK_SIGNAL_FUNC(visibility_event), NULL);
gtk_signal_connect(GTK_OBJECT(gui.drawarea), "expose_event",
GTK_SIGNAL_FUNC(expose_event), NULL);
#endif
/*
* Only install these enter/leave callbacks when 'p' in 'guioptions'.
* Only needed for some window managers.
*/
if (vim_strchr(p_go, GO_POINTER) != NULL)
{
g_signal_connect(G_OBJECT(gui.drawarea), "leave-notify-event",
G_CALLBACK(leave_notify_event), NULL);
g_signal_connect(G_OBJECT(gui.drawarea), "enter-notify-event",
G_CALLBACK(enter_notify_event), NULL);
}
// Real windows can get focus ... GtkPlug, being a mere container can't,
// only its widgets. Arguably, this could be common code and we do not
// use the window focus at all, but let's be safe.
if (gtk_socket_id == 0)
{
g_signal_connect(G_OBJECT(gui.mainwin), "focus-out-event",
G_CALLBACK(focus_out_event), NULL);
g_signal_connect(G_OBJECT(gui.mainwin), "focus-in-event",
G_CALLBACK(focus_in_event), NULL);
}
else
{
g_signal_connect(G_OBJECT(gui.drawarea), "focus-out-event",
G_CALLBACK(focus_out_event), NULL);
g_signal_connect(G_OBJECT(gui.drawarea), "focus-in-event",
G_CALLBACK(focus_in_event), NULL);
#ifdef FEAT_GUI_TABLINE
g_signal_connect(G_OBJECT(gui.tabline), "focus-out-event",
G_CALLBACK(focus_out_event), NULL);
g_signal_connect(G_OBJECT(gui.tabline), "focus-in-event",
G_CALLBACK(focus_in_event), NULL);
#endif // FEAT_GUI_TABLINE
}
g_signal_connect(G_OBJECT(gui.drawarea), "motion-notify-event",
G_CALLBACK(motion_notify_event), NULL);
g_signal_connect(G_OBJECT(gui.drawarea), "button-press-event",
G_CALLBACK(button_press_event), NULL);
g_signal_connect(G_OBJECT(gui.drawarea), "button-release-event",
G_CALLBACK(button_release_event), NULL);
g_signal_connect(G_OBJECT(gui.drawarea), "scroll-event",
G_CALLBACK(scroll_event), NULL);
// Pretend we don't have input focus, we will get an event if we do.
gui.in_focus = FALSE;
// Handle changes to the "Xft/DPI" setting.
{
GtkSettings *gtk_settings =
gtk_settings_get_for_screen(gdk_screen_get_default());
g_signal_connect(gtk_settings, "notify::gtk-xft-dpi",
G_CALLBACK(gtk_settings_xft_dpi_changed_cb), NULL);
}
return OK;
}
#if defined(USE_GNOME_SESSION) || defined(PROTO)
/*
* This is called from gui_start() after a fork() has been done.
* We have to tell the session manager our new PID.
*/
void
gui_mch_forked(void)
{
if (!using_gnome)
return;
GnomeClient *client;
client = gnome_master_client();
if (client != NULL)
gnome_client_set_process_id(client, getpid());
}
#endif // USE_GNOME_SESSION
#if GTK_CHECK_VERSION(3,0,0)
static GdkRGBA
color_to_rgba(guicolor_T color)
{
GdkRGBA rgba;
rgba.red = ((color & 0xff0000) >> 16) / 255.0;
rgba.green = ((color & 0xff00) >> 8) / 255.0;
rgba.blue = ((color & 0xff)) / 255.0;
rgba.alpha = 1.0;
return rgba;
}
static void
set_cairo_source_rgba_from_color(cairo_t *cr, guicolor_T color)
{
const GdkRGBA rgba = color_to_rgba(color);
cairo_set_source_rgba(cr, rgba.red, rgba.green, rgba.blue, rgba.alpha);
}
#endif // GTK_CHECK_VERSION(3,0,0)
/*
* Called when the foreground or background color has been changed.
* This used to change the graphics contexts directly but we are
* currently manipulating them where desired.
*/
void
gui_mch_new_colors(void)
{
if (gui.drawarea != NULL
#if GTK_CHECK_VERSION(3,22,2)
&& gui.formwin != NULL
#endif
&& gtk_widget_get_window(gui.drawarea) != NULL)
{
#if !GTK_CHECK_VERSION(3,22,2)
GdkWindow * const da_win = gtk_widget_get_window(gui.drawarea);
#endif
#if GTK_CHECK_VERSION(3,22,2)
GtkStyleContext * const context =
gtk_widget_get_style_context(gui.formwin);
GtkCssProvider * const provider = gtk_css_provider_new();
gchar * const css = g_strdup_printf(
"widget#vim-gtk-form {\n"
" background-color: #%.2lx%.2lx%.2lx;\n"
"}\n",
(gui.back_pixel >> 16) & 0xff,
(gui.back_pixel >> 8) & 0xff,
gui.back_pixel & 0xff);
gtk_css_provider_load_from_data(provider, css, -1, NULL);
gtk_style_context_add_provider(context,
GTK_STYLE_PROVIDER(provider), G_MAXUINT);
g_free(css);
g_object_unref(provider);
#elif GTK_CHECK_VERSION(3,4,0) // !GTK_CHECK_VERSION(3,22,2)
GdkRGBA rgba;
rgba = color_to_rgba(gui.back_pixel);
{
cairo_pattern_t * const pat = cairo_pattern_create_rgba(
rgba.red, rgba.green, rgba.blue, rgba.alpha);
if (pat != NULL)
{
gdk_window_set_background_pattern(da_win, pat);
cairo_pattern_destroy(pat);
}
else
gdk_window_set_background_rgba(da_win, &rgba);
}
#else // !GTK_CHECK_VERSION(3,4,0)
GdkColor color = { 0, 0, 0, 0 };
color.pixel = gui.back_pixel;
gdk_window_set_background(da_win, &color);
#endif // !GTK_CHECK_VERSION(3,22,2)
}
}
/*
* This signal informs us about the need to rearrange our sub-widgets.
*/
static gint
form_configure_event(GtkWidget *widget UNUSED,
GdkEventConfigure *event,
gpointer data UNUSED)
{
int usable_height = event->height;
#ifdef TRACK_RESIZE_HISTORY
// Resize requests are made for gui.mainwin;
// get its dimensions for searching if this event
// is a response to a vim request.
int w, h;
gtk_window_get_size(GTK_WINDOW(gui.mainwin), &w, &h);
# ifdef ENABLE_RESIZE_HISTORY_LOG
ch_log(NULL, "gui_gtk: form_configure_event: (%d, %d) [%d, %d]",
w, h, (int)Columns, (int)Rows);
# endif
// Look through history of recent vim resize requests.
// If this event matches:
// - "latest resize hist" We're caught up;
// clear the history and process this event.
// If history is, old to new, 100, 99, 100, 99. If this event is
// 99 for the stale, it is matched against the current. History
// is cleared, we may bounce, but no worse than before.
// - "older/stale hist" If match an unused event in history,
// then discard this event, and mark the matching event as used.
// - "no match" Figure it's a user resize event, clear history.
// NOTE: clear history is default, then all incoming events are processed
if (!MATCH_WIDTH_HEIGHT(latest_resize_hist, w, h)
&& match_stale_width_height(w, h))
// discard stale event
return TRUE;
clear_resize_hists();
#endif
#if GTK_CHECK_VERSION(3,22,2) && !GTK_CHECK_VERSION(3,22,4)
// As of 3.22.2, GdkWindows have started distributing configure events to
// their "native" children (https://git.gnome.org/browse/gtk+/commit/?h=gtk-3-22&id=12579fe71b3b8f79eb9c1b80e429443bcc437dd0).
//
// As can be seen from the implementation of move_native_children() and
// configure_native_child() in gdkwindow.c, those functions actually
// propagate configure events to every child, failing to distinguish
// "native" one from non-native one.
//
// Naturally, configure events propagated to here like that are fallacious
// and, as a matter of fact, they trigger a geometric collapse of
// gui.formwin.
//
// To filter out such fallacious events, check if the given event is the
// one that was sent out to the right place. Ignore it if not.
//
// Follow-up
// After a few weeks later, the GdkWindow change mentioned above was
// reverted (https://git.gnome.org/browse/gtk+/commit/?h=gtk-3-22&id=f70039cb9603a02d2369fec4038abf40a1711155).
// The corresponding official release is 3.22.4.
if (event->window != gtk_widget_get_window(gui.formwin))
return TRUE;
#endif
// When in a GtkPlug, we can't guarantee valid heights (as a round
// no. of char-heights), so we have to manually sanitise them.
// Widths seem to sort themselves out, don't ask me why.
if (gtk_socket_id != 0)
usable_height -= (gui.char_height - (gui.char_height/2)); // sic.
gui_gtk_form_freeze(GTK_FORM(gui.formwin));
gui_resize_shell(event->width, usable_height);
gui_gtk_form_thaw(GTK_FORM(gui.formwin));
return TRUE;
}
/*
* Function called when window already closed.
* We can't do much more here than to trying to preserve what had been done,
* since the window is already inevitably going away.
*/
static void
mainwin_destroy_cb(GObject *object UNUSED, gpointer data UNUSED)
{
// Don't write messages to the GUI anymore
full_screen = FALSE;
gui.mainwin = NULL;
gui.drawarea = NULL;
if (!exiting) // only do anything if the destroy was unexpected
{
vim_strncpy(IObuff,
(char_u *)_("Vim: Main window unexpectedly destroyed\n"),
IOSIZE - 1);
preserve_exit();
}
#ifdef USE_GRESOURCE
gui_gtk_unregister_resource();
#endif
}
void
gui_gtk_get_screen_geom_of_win(
GtkWidget *wid,
int point_x, // x position of window if not initialized
int point_y, // y position of window if not initialized
int *screen_x,
int *screen_y,
int *width,
int *height)
{
GdkRectangle geometry;
GdkWindow *win = gtk_widget_get_window(wid);
#if GTK_CHECK_VERSION(3,22,0)
GdkDisplay *dpy;
GdkMonitor *monitor;
if (wid != NULL && gtk_widget_get_realized(wid))
dpy = gtk_widget_get_display(wid);
else
dpy = gdk_display_get_default();
if (win != NULL)
monitor = gdk_display_get_monitor_at_window(dpy, win);
else
monitor = gdk_display_get_monitor_at_point(dpy, point_x, point_y);
gdk_monitor_get_geometry(monitor, &geometry);
#else
GdkScreen* screen;
int monitor;
if (wid != NULL && gtk_widget_has_screen(wid))
screen = gtk_widget_get_screen(wid);
else
screen = gdk_screen_get_default();
if (win != NULL)
monitor = gdk_screen_get_monitor_at_window(screen, win);
else
monitor = gdk_screen_get_monitor_at_point(screen, point_x, point_y);
gdk_screen_get_monitor_geometry(screen, monitor, &geometry);
#endif
*screen_x = geometry.x;
*screen_y = geometry.y;
*width = geometry.width;
*height = geometry.height;
}
/*
* The screen size is used to make sure the initial window doesn't get bigger
* than the screen. This subtracts some room for menubar, toolbar and window
* decorations.
*/
static void
gui_gtk_get_screen_dimensions(
int point_x,
int point_y,
int *screen_w,
int *screen_h)
{
int x, y;
gui_gtk_get_screen_geom_of_win(gui.mainwin, point_x, point_y,
&x, &y, screen_w, screen_h);
// Subtract 'guiheadroom' from the height to allow some room for the
// window manager (task list and window title bar).
*screen_h -= p_ghr;
/*
* FIXME: dirty trick: Because the gui_get_base_height() doesn't include
* the toolbar and menubar for GTK, we subtract them from the screen
* height, so that the window size can be made to fit on the screen.
* This should be completely changed later.
*/
*screen_w -= get_menu_tool_width();
*screen_h -= get_menu_tool_height();
}
void
gui_mch_get_screen_dimensions(int *screen_w, int *screen_h)
{
gui_gtk_get_screen_dimensions(0, 0, screen_w, screen_h);
}
/*
* Bit of a hack to ensure we start GtkPlug windows with the correct window
* hints (and thus the required size from -geom), but that after that we
* put the hints back to normal (the actual minimum size) so we may
* subsequently be resized smaller. GtkSocket (the parent end) uses the
* plug's window 'min hints to set *its* minimum size, but that's also the
* only way we have of making ourselves bigger (by set lines/columns).
* Thus set hints at start-up to ensure correct init. size, then a
* second after the final attempt to reset the real minimum hints (done by
* scrollbar init.), actually do the standard hints and stop the timer.
* We'll not let the default hints be set while this timer's active.
*/
static timeout_cb_type
check_startup_plug_hints(gpointer data UNUSED)
{
if (init_window_hints_state == 1)
{
// Safe to use normal hints now
init_window_hints_state = 0;
update_window_manager_hints(0, 0);
return FALSE; // stop timer
}
// Keep on trying
init_window_hints_state = 1;
return TRUE;
}
/*
* Open the GUI window which was created by a call to gui_mch_init().
*/
int
gui_mch_open(void)
{
guicolor_T fg_pixel = INVALCOLOR;
guicolor_T bg_pixel = INVALCOLOR;
guint pixel_width;
guint pixel_height;
/*
* Allow setting a window role on the command line, or invent one
* if none was specified. This is mainly useful for GNOME session
* support; allowing the WM to restore window placement.
*/
if (role_argument != NULL)
{
gtk_window_set_role(GTK_WINDOW(gui.mainwin), role_argument);
}
else
{
char *role;
// Invent a unique-enough ID string for the role
role = g_strdup_printf("vim-%u-%u-%u",
(unsigned)mch_get_pid(),
(unsigned)g_random_int(),
(unsigned)time(NULL));
gtk_window_set_role(GTK_WINDOW(gui.mainwin), role);
g_free(role);
}
if (gui_win_x != -1 && gui_win_y != -1)
gtk_window_move(GTK_WINDOW(gui.mainwin), gui_win_x, gui_win_y);
// Determine user specified geometry, if present.
if (gui.geom != NULL)
{
int mask;
unsigned int w, h;
int x = 0;
int y = 0;
mask = XParseGeometry((char *)gui.geom, &x, &y, &w, &h);
if (mask & WidthValue)
Columns = w;
if (mask & HeightValue)
{
if (p_window > (long)h - 1 || !option_was_set((char_u *)"window"))
p_window = h - 1;
Rows = h;
}
limit_screen_size();
pixel_width = (guint)(gui_get_base_width() + Columns * gui.char_width);
pixel_height = (guint)(gui_get_base_height() + Rows * gui.char_height);
pixel_width += get_menu_tool_width();
pixel_height += get_menu_tool_height();
if (mask & (XValue | YValue))
{
int ww, hh;
#ifdef FEAT_GUI_GTK
gui_gtk_get_screen_dimensions(x, y, &ww, &hh);
#else
gui_mch_get_screen_dimensions(&ww, &hh);
#endif
hh += p_ghr + get_menu_tool_height();
ww += get_menu_tool_width();
if (mask & XNegative)
x += ww - pixel_width;
if (mask & YNegative)
y += hh - pixel_height;
gtk_window_move(GTK_WINDOW(gui.mainwin), x, y);
}
VIM_CLEAR(gui.geom);
// From now until everyone's stopped trying to set the window hints
// to their correct minimum values, stop them being set as we need
// them to remain at our required size for the parent GtkSocket to
// give us the right initial size.
if (gtk_socket_id != 0 && (mask & WidthValue || mask & HeightValue))
{
update_window_manager_hints(pixel_width, pixel_height);
init_window_hints_state = 1;
timeout_add(1000, check_startup_plug_hints, NULL);
}
}
pixel_width = (guint)(gui_get_base_width() + Columns * gui.char_width);
pixel_height = (guint)(gui_get_base_height() + Rows * gui.char_height);
// For GTK2 changing the size of the form widget doesn't cause window
// resizing.
if (gtk_socket_id == 0)
gtk_window_resize(GTK_WINDOW(gui.mainwin), pixel_width, pixel_height);
update_window_manager_hints(0, 0);
if (foreground_argument != NULL)
fg_pixel = gui_get_color((char_u *)foreground_argument);
if (fg_pixel == INVALCOLOR)
fg_pixel = gui_get_color((char_u *)"Black");
if (background_argument != NULL)
bg_pixel = gui_get_color((char_u *)background_argument);
if (bg_pixel == INVALCOLOR)
bg_pixel = gui_get_color((char_u *)"White");
if (found_reverse_arg)
{
gui.def_norm_pixel = bg_pixel;
gui.def_back_pixel = fg_pixel;
}
else
{
gui.def_norm_pixel = fg_pixel;
gui.def_back_pixel = bg_pixel;
}
// Get the colors from the "Normal" and "Menu" group (set in syntax.c or
// in a vimrc file)
set_normal_colors();
// Check that none of the colors are the same as the background color
gui_check_colors();
// Get the colors for the highlight groups (gui_check_colors() might have
// changed them).
highlight_gui_started(); // re-init colors and fonts
g_signal_connect(G_OBJECT(gui.mainwin), "destroy",
G_CALLBACK(mainwin_destroy_cb), NULL);
/*
* Notify the fixed area about the need to resize the contents of the
* gui.formwin, which we use for random positioning of the included
* components.
*
* We connect this signal deferred finally after anything is in place,
* since this is intended to handle resizements coming from the window
* manager upon us and should not interfere with what VIM is requesting
* upon startup.
*/
#ifdef TRACK_RESIZE_HISTORY
latest_resize_hist = ALLOC_CLEAR_ONE(resize_hist_T);
#endif
g_signal_connect(G_OBJECT(gui.formwin), "configure-event",
G_CALLBACK(form_configure_event), NULL);
#if GTK_CHECK_VERSION(3,10,0)
g_signal_connect(G_OBJECT(gui.formwin), "notify::scale-factor",
G_CALLBACK(scale_factor_event), NULL);
#endif
#ifdef FEAT_DND
// Set up for receiving DND items.
gui_gtk_set_dnd_targets();
g_signal_connect(G_OBJECT(gui.drawarea), "drag-data-received",
G_CALLBACK(drag_data_received_cb), NULL);
#endif
// With GTK+ 2, we need to iconify the window before calling show()
// to avoid mapping the window for a short time.
if (found_iconic_arg && gtk_socket_id == 0)
gui_mch_iconify();
{
#if defined(FEAT_GUI_GNOME) && defined(FEAT_MENU)
unsigned long menu_handler = 0;
# ifdef FEAT_TOOLBAR
unsigned long tool_handler = 0;
# endif
/*
* Urgh hackish :/ For some reason BonoboDockLayout always forces a
* show when restoring the saved layout configuration. We can't just
* hide the widgets again after gtk_widget_show(gui.mainwin) since it's
* a toplevel window and thus will be realized immediately. Instead,
* connect signal handlers to hide the widgets just after they've been
* marked visible, but before the main window is realized.
*/
if (using_gnome && vim_strchr(p_go, GO_MENUS) == NULL)
menu_handler = g_signal_connect_after(gui.menubar_h, "show",
G_CALLBACK(&gtk_widget_hide),
NULL);
# ifdef FEAT_TOOLBAR
if (using_gnome && vim_strchr(p_go, GO_TOOLBAR) == NULL
&& (toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS)))
tool_handler = g_signal_connect_after(gui.toolbar_h, "show",
G_CALLBACK(&gtk_widget_hide),
NULL);
# endif
#endif
gtk_widget_show(gui.mainwin);
#if defined(FEAT_GUI_GNOME) && defined(FEAT_MENU)
if (menu_handler != 0)
g_signal_handler_disconnect(gui.menubar_h, menu_handler);
# ifdef FEAT_TOOLBAR
if (tool_handler != 0)
g_signal_handler_disconnect(gui.toolbar_h, tool_handler);
# endif
#endif
}
/*
* Add selection handler functions.
*/
g_signal_connect(G_OBJECT(gui.drawarea), "selection-clear-event",
G_CALLBACK(selection_clear_event), NULL);
g_signal_connect(G_OBJECT(gui.drawarea), "selection-received",
G_CALLBACK(selection_received_cb), NULL);
g_signal_connect(G_OBJECT(gui.drawarea), "selection-get",
G_CALLBACK(selection_get_cb), NULL);
return OK;
}
/*
* Clean up for when exiting Vim.
*/
void
gui_mch_exit(int rc UNUSED)
{
// Clean up, unless we don't want to invoke free().
if (gui.mainwin != NULL && !really_exiting)
gtk_widget_destroy(gui.mainwin);
}
/*
* Get the position of the top left corner of the window.
*/
int
gui_mch_get_winpos(int *x, int *y)
{
if (gui_mch_get_display())
{
gtk_window_get_position(GTK_WINDOW(gui.mainwin), x, y);
return OK;
}
return FAIL;
}
/*
* Set the position of the top left corner of the window to the given
* coordinates.
*/
void
gui_mch_set_winpos(int x, int y)
{
gtk_window_move(GTK_WINDOW(gui.mainwin), x, y);
}
#if !GTK_CHECK_VERSION(3,0,0)
# if 0
static int resize_idle_installed = FALSE;
/*
* Idle handler to force resize. Used by gui_mch_set_shellsize() to ensure
* the shell size doesn't exceed the window size, i.e. if the window manager
* ignored our size request. Usually this happens if the window is maximized.
*
* FIXME: It'd be nice if we could find a little more orthodox solution.
* See also the remark below in gui_mch_set_shellsize().
*
* DISABLED: When doing ":set lines+=1" this function would first invoke
* gui_resize_shell() with the old size, then the normal callback would
* report the new size through form_configure_event(). That caused the window
* layout to be messed up.
*/
static gboolean
force_shell_resize_idle(gpointer data)
{
if (gui.mainwin != NULL
&& GTK_WIDGET_REALIZED(gui.mainwin)
&& GTK_WIDGET_VISIBLE(gui.mainwin))
{
int width;
int height;
gtk_window_get_size(GTK_WINDOW(gui.mainwin), &width, &height);
width -= get_menu_tool_width();
height -= get_menu_tool_height();
gui_resize_shell(width, height);
}
resize_idle_installed = FALSE;
return FALSE; // don't call me again
}
# endif
#endif // !GTK_CHECK_VERSION(3,0,0)
/*
* Return TRUE if the main window is maximized.
*/
int
gui_mch_maximized(void)
{
return (gui.mainwin != NULL && gtk_widget_get_window(gui.mainwin) != NULL
&& (gdk_window_get_state(gtk_widget_get_window(gui.mainwin))
& GDK_WINDOW_STATE_MAXIMIZED));
}
/*
* Unmaximize the main window
*/
void
gui_mch_unmaximize(void)
{
if (gui.mainwin != NULL)
gtk_window_unmaximize(GTK_WINDOW(gui.mainwin));
}
/*
* Called when the font changed while the window is maximized or GO_KEEPWINSIZE
* is set. Compute the new Rows and Columns. This is like resizing the
* window.
*/
void
gui_mch_newfont(void)
{
int w, h;
gtk_window_get_size(GTK_WINDOW(gui.mainwin), &w, &h);
w -= get_menu_tool_width();
h -= get_menu_tool_height();
gui_resize_shell(w, h);
}
/*
* Set the windows size.
*/
void
gui_mch_set_shellsize(int width, int height,
int min_width UNUSED, int min_height UNUSED,
int base_width UNUSED, int base_height UNUSED,
int direction UNUSED)
{
// give GTK+ a chance to put all widget's into place
gui_mch_update();
// this will cause the proper resizement to happen too
if (gtk_socket_id == 0)
update_window_manager_hints(0, 0);
// With GTK+ 2, changing the size of the form widget doesn't resize
// the window. So let's do it the other way around and resize the
// main window instead.
width += get_menu_tool_width();
height += get_menu_tool_height();
#ifdef TRACK_RESIZE_HISTORY
alloc_resize_hist(width, height); // track the resize request
#endif
if (gtk_socket_id == 0)
gtk_window_resize(GTK_WINDOW(gui.mainwin), width, height);
else
update_window_manager_hints(width, height);
# if !GTK_CHECK_VERSION(3,0,0)
# if 0
if (!resize_idle_installed)
{
g_idle_add_full(GDK_PRIORITY_EVENTS + 10,
&force_shell_resize_idle, NULL, NULL);
resize_idle_installed = TRUE;
}
# endif
# endif // !GTK_CHECK_VERSION(3,0,0)
/*
* Wait until all events are processed to prevent a crash because the
* real size of the drawing area doesn't reflect Vim's internal ideas.
*
* This is a bit of a hack, since Vim is a terminal application with a GUI
* on top, while the GUI expects to be the boss.
*/
gui_mch_update();
}
void
gui_mch_settitle(char_u *title, char_u *icon UNUSED)
{
if (title != NULL && output_conv.vc_type != CONV_NONE)
title = string_convert(&output_conv, title, NULL);
gtk_window_set_title(GTK_WINDOW(gui.mainwin), (const char *)title);
if (output_conv.vc_type != CONV_NONE)
vim_free(title);
}
#if defined(FEAT_MENU) || defined(PROTO)
void
gui_mch_enable_menu(int showit)
{
GtkWidget *widget;
# ifdef FEAT_GUI_GNOME
if (using_gnome)
widget = gui.menubar_h;
else
# endif
widget = gui.menubar;
// Do not disable the menu while starting up, otherwise F10 doesn't work.
if (!showit != !gtk_widget_get_visible(widget) && !gui.starting)
{
if (showit)
gtk_widget_show(widget);
else
gtk_widget_hide(widget);
update_window_manager_hints(0, 0);
}
}
#endif // FEAT_MENU
#if defined(FEAT_TOOLBAR) || defined(PROTO)
void
gui_mch_show_toolbar(int showit)
{
GtkWidget *widget;
if (gui.toolbar == NULL)
return;
# ifdef FEAT_GUI_GNOME
if (using_gnome)
widget = gui.toolbar_h;
else
# endif
widget = gui.toolbar;
if (showit)
set_toolbar_style(GTK_TOOLBAR(gui.toolbar));
if (!showit != !gtk_widget_get_visible(widget))
{
if (showit)
gtk_widget_show(widget);
else
gtk_widget_hide(widget);
update_window_manager_hints(0, 0);
}
}
#endif // FEAT_TOOLBAR
/*
* Check if a given font is a CJK font. This is done in a very crude manner. It
* just see if U+04E00 for zh and ja and U+AC00 for ko are covered in a given
* font. Consequently, this function cannot be used as a general purpose check
* for CJK-ness for which fontconfig APIs should be used. This is only used by
* gui_mch_init_font() to deal with 'CJK fixed width fonts'.
*/
static int
is_cjk_font(PangoFontDescription *font_desc)
{
static const char * const cjk_langs[] =
{"zh_CN", "zh_TW", "zh_HK", "ja", "ko"};
PangoFont *font;
unsigned i;
int is_cjk = FALSE;
font = pango_context_load_font(gui.text_context, font_desc);
if (font == NULL)
return FALSE;
for (i = 0; !is_cjk && i < G_N_ELEMENTS(cjk_langs); ++i)
{
PangoCoverage *coverage;
gunichar uc;
// Valgrind reports a leak for pango_language_from_string(), but the
// documentation says "This is owned by Pango and should not be freed".
coverage = pango_font_get_coverage(
font, pango_language_from_string(cjk_langs[i]));
if (coverage != NULL)
{
uc = (cjk_langs[i][0] == 'k') ? 0xAC00 : 0x4E00;
is_cjk = (pango_coverage_get(coverage, uc) == PANGO_COVERAGE_EXACT);
#if PANGO_VERSION_CHECK(1, 52, 0)
g_object_unref(coverage);
#else
pango_coverage_unref(coverage);
#endif
}
}
g_object_unref(font);
return is_cjk;
}
/*
* Adjust gui.char_height (after 'linespace' was changed).
*/
int
gui_mch_adjust_charheight(void)
{
PangoFontMetrics *metrics;
int ascent;
int descent;
metrics = pango_context_get_metrics(gui.text_context, gui.norm_font,
pango_context_get_language(gui.text_context));
ascent = pango_font_metrics_get_ascent(metrics);
descent = pango_font_metrics_get_descent(metrics);
pango_font_metrics_unref(metrics);
// Round up when the value is more than about 1/16 of a pixel above a whole
// pixel (12.0624 becomes 12, 12.07 becomes 13). Then add 'linespace'.
gui.char_height = (ascent + descent + (PANGO_SCALE * 15) / 16)
/ PANGO_SCALE + p_linespace;
// LINTED: avoid warning: bitwise operation on signed value
gui.char_ascent = PANGO_PIXELS(ascent + p_linespace * PANGO_SCALE / 2);
// A not-positive value of char_height may crash Vim. Only happens
// if 'linespace' is negative (which does make sense sometimes).
gui.char_ascent = MAX(gui.char_ascent, 0);
gui.char_height = MAX(gui.char_height, gui.char_ascent + 1);
return OK;
}
#if GTK_CHECK_VERSION(3,0,0)
// Callback function used in gui_mch_font_dialog()
static gboolean
font_filter(const PangoFontFamily *family,
const PangoFontFace *face UNUSED,
gpointer data UNUSED)
{
return pango_font_family_is_monospace((PangoFontFamily *)family);
}
#endif
/*
* Put up a font dialog and return the selected font name in allocated memory.
* "oldval" is the previous value. Return NULL when cancelled.
* This should probably go into gui_gtk.c. Hmm.
* FIXME:
* The GTK2 font selection dialog has no filtering API. So we could either
* a) implement our own (possibly copying the code from somewhere else) or
* b) just live with it.
*/
char_u *
gui_mch_font_dialog(char_u *oldval)
{
GtkWidget *dialog;
int response;
char_u *fontname = NULL;
char_u *oldname;
#if GTK_CHECK_VERSION(3,2,0)
dialog = gtk_font_chooser_dialog_new(NULL, NULL);
gtk_font_chooser_set_filter_func(GTK_FONT_CHOOSER(dialog), font_filter,
NULL, NULL);
#else
dialog = gtk_font_selection_dialog_new(NULL);
#endif
gtk_window_set_transient_for(GTK_WINDOW(dialog), GTK_WINDOW(gui.mainwin));
gtk_window_set_destroy_with_parent(GTK_WINDOW(dialog), TRUE);
if (oldval != NULL && oldval[0] != NUL)
{
if (output_conv.vc_type != CONV_NONE)
oldname = string_convert(&output_conv, oldval, NULL);
else
oldname = oldval;
// Annoying bug in GTK (or Pango): if the font name does not include a
// size, zero is used. Use default point size ten.
if (!vim_isdigit(oldname[STRLEN(oldname) - 1]))
{
char_u *p = vim_strnsave(oldname, STRLEN(oldname) + 3);
if (p != NULL)
{
STRCPY(p + STRLEN(p), " 10");
if (oldname != oldval)
vim_free(oldname);
oldname = p;
}
}
#if GTK_CHECK_VERSION(3,2,0)
gtk_font_chooser_set_font(
GTK_FONT_CHOOSER(dialog), (const gchar *)oldname);
#else
gtk_font_selection_dialog_set_font_name(
GTK_FONT_SELECTION_DIALOG(dialog), (const char *)oldname);
#endif
if (oldname != oldval)
vim_free(oldname);
}
else
#if GTK_CHECK_VERSION(3,2,0)
gtk_font_chooser_set_font(
GTK_FONT_CHOOSER(dialog), DEFAULT_FONT);
#else
gtk_font_selection_dialog_set_font_name(
GTK_FONT_SELECTION_DIALOG(dialog), DEFAULT_FONT);
#endif
response = gtk_dialog_run(GTK_DIALOG(dialog));
if (response == GTK_RESPONSE_OK)
{
char *name;
#if GTK_CHECK_VERSION(3,2,0)
name = gtk_font_chooser_get_font(GTK_FONT_CHOOSER(dialog));
#else
name = gtk_font_selection_dialog_get_font_name(
GTK_FONT_SELECTION_DIALOG(dialog));
#endif
if (name != NULL)
{
char_u *p;
// Apparently some font names include a comma, need to escape
// that, because in 'guifont' it separates names.
p = vim_strsave_escaped((char_u *)name, (char_u *)",");
g_free(name);
if (p != NULL && input_conv.vc_type != CONV_NONE)
{
fontname = string_convert(&input_conv, p, NULL);
vim_free(p);
}
else
fontname = p;
}
}
if (response != GTK_RESPONSE_NONE)
gtk_widget_destroy(dialog);
return fontname;
}
/*
* Some monospace fonts don't support a bold weight, and fall back
* silently to the regular weight. But this is no good since our text
* drawing function can emulate bold by overstriking. So let's try
* to detect whether bold weight is actually available and emulate it
* otherwise.
*
* Note that we don't need to check for italic style since Xft can
* emulate italic on its own, provided you have a proper fontconfig
* setup. We wouldn't be able to emulate it in Vim anyway.
*/
static void
get_styled_font_variants(void)
{
PangoFontDescription *bold_font_desc;
PangoFont *plain_font;
PangoFont *bold_font;
gui.font_can_bold = FALSE;
plain_font = pango_context_load_font(gui.text_context, gui.norm_font);
if (plain_font == NULL)
return;
bold_font_desc = pango_font_description_copy_static(gui.norm_font);
pango_font_description_set_weight(bold_font_desc, PANGO_WEIGHT_BOLD);
bold_font = pango_context_load_font(gui.text_context, bold_font_desc);
/*
* The comparison relies on the unique handle nature of a PangoFont*,
* i.e. it's assumed that a different PangoFont* won't refer to the
* same font. Seems to work, and failing here isn't critical anyway.
*/
if (bold_font != NULL)
{
gui.font_can_bold = (bold_font != plain_font);
g_object_unref(bold_font);
}
pango_font_description_free(bold_font_desc);
if (bold_font != NULL && gui.font_can_bold)
g_object_unref(plain_font);
}
static PangoEngineShape *default_shape_engine = NULL;
/*
* Create a map from ASCII characters in the range [32,126] to glyphs
* of the current font. This is used by gui_gtk2_draw_string() to skip
* the itemize and shaping process for the most common case.
*/
static void
ascii_glyph_table_init(void)
{
char_u ascii_chars[2 * 128];
PangoAttrList *attr_list;
GList *item_list;
int i;
if (gui.ascii_glyphs != NULL)
pango_glyph_string_free(gui.ascii_glyphs);
if (gui.ascii_font != NULL)
g_object_unref(gui.ascii_font);
gui.ascii_glyphs = NULL;
gui.ascii_font = NULL;
// For safety, fill in question marks for the control characters.
// Put a space between characters to avoid shaping.
for (i = 0; i < 128; ++i)
{
if (i >= 32 && i < 127)
ascii_chars[2 * i] = i;
else
ascii_chars[2 * i] = '?';
ascii_chars[2 * i + 1] = ' ';
}
attr_list = pango_attr_list_new();
item_list = pango_itemize(gui.text_context, (const char *)ascii_chars,
0, sizeof(ascii_chars), attr_list, NULL);
if (item_list != NULL && item_list->next == NULL) // play safe
{
PangoItem *item;
int width;
item = (PangoItem *)item_list->data;
width = gui.char_width * PANGO_SCALE;
// Remember the shape engine used for ASCII.
default_shape_engine = item->analysis.shape_engine;
gui.ascii_font = item->analysis.font;
g_object_ref(gui.ascii_font);
gui.ascii_glyphs = pango_glyph_string_new();
pango_shape((const char *)ascii_chars, sizeof(ascii_chars),
&item->analysis, gui.ascii_glyphs);
g_return_if_fail(gui.ascii_glyphs->num_glyphs == sizeof(ascii_chars));
for (i = 0; i < gui.ascii_glyphs->num_glyphs; ++i)
{
PangoGlyphGeometry *geom;
geom = &gui.ascii_glyphs->glyphs[i].geometry;
geom->x_offset += MAX(0, width - geom->width) / 2;
geom->width = width;
}
}
// TODO: is this type cast OK?
g_list_foreach(item_list, (GFunc)(void *)&pango_item_free, NULL);
g_list_free(item_list);
pango_attr_list_unref(attr_list);
}
/*
* Initialize Vim to use the font or fontset with the given name.
* Return FAIL if the font could not be loaded, OK otherwise.
*/
int
gui_mch_init_font(char_u *font_name, int fontset UNUSED)
{
PangoFontDescription *font_desc;
PangoLayout *layout;
int width;
// If font_name is NULL, this means to use the default, which should
// be present on all proper Pango/fontconfig installations.
if (font_name == NULL)
font_name = (char_u *)DEFAULT_FONT;
font_desc = gui_mch_get_font(font_name, FALSE);
if (font_desc == NULL)
return FAIL;
gui_mch_free_font(gui.norm_font);
gui.norm_font = font_desc;
pango_context_set_font_description(gui.text_context, font_desc);
layout = pango_layout_new(gui.text_context);
pango_layout_set_text(layout, "MW", 2);
pango_layout_get_size(layout, &width, NULL);
/*
* Set char_width to half the width obtained from pango_layout_get_size()
* for CJK fixed_width/bi-width fonts. An unpatched version of Xft leads
* Pango to use the same width for both non-CJK characters (e.g. Latin
* letters and numbers) and CJK characters. This results in 's p a c e d
* o u t' rendering when a CJK 'fixed width' font is used. To work around
* that, divide the width returned by Pango by 2 if cjk_width is equal to
* width for CJK fonts.
*
* For related bugs, see:
* http://bugzilla.gnome.org/show_bug.cgi?id=106618
* http://bugzilla.gnome.org/show_bug.cgi?id=106624
*
* With this, for all four of the following cases, Vim works fine:
* guifont=CJK_fixed_width_font
* guifont=Non_CJK_fixed_font
* guifont=Non_CJK_fixed_font,CJK_Fixed_font
* guifont=Non_CJK_fixed_font guifontwide=CJK_fixed_font
*/
if (is_cjk_font(gui.norm_font))
{
int cjk_width;
// Measure the text extent of U+4E00 and U+4E8C
pango_layout_set_text(layout, "\344\270\200\344\272\214", -1);
pango_layout_get_size(layout, &cjk_width, NULL);
if (width == cjk_width) // Xft not patched
width /= 2;
}
g_object_unref(layout);
gui.char_width = (width / 2 + PANGO_SCALE - 1) / PANGO_SCALE;
// A zero width may cause a crash. Happens for semi-invalid fontsets.
if (gui.char_width <= 0)
gui.char_width = 8;
gui_mch_adjust_charheight();
// Set the fontname, which will be used for information purposes
hl_set_font_name(font_name);
get_styled_font_variants();
ascii_glyph_table_init();
// Avoid unnecessary overhead if 'guifontwide' is equal to 'guifont'.
if (gui.wide_font != NULL
&& pango_font_description_equal(gui.norm_font, gui.wide_font))
{
pango_font_description_free(gui.wide_font);
gui.wide_font = NULL;
}
if (gui_mch_maximized())
{
// Update lines and columns in accordance with the new font, keep the
// window maximized.
gui_mch_newfont();
}
else
{
// Preserve the logical dimensions of the screen.
update_window_manager_hints(0, 0);
}
return OK;
}
/*
* Get a reference to the font "name".
* Return zero for failure.
*/
GuiFont
gui_mch_get_font(char_u *name, int report_error)
{
PangoFontDescription *font;
// can't do this when GUI is not running
if (!gui.in_use || name == NULL)
return NULL;
if (output_conv.vc_type != CONV_NONE)
{
char_u *buf;
buf = string_convert(&output_conv, name, NULL);
if (buf != NULL)
{
font = pango_font_description_from_string((const char *)buf);
vim_free(buf);
}
else
font = NULL;
}
else
font = pango_font_description_from_string((const char *)name);
if (font != NULL)
{
PangoFont *real_font;
// pango_context_load_font() bails out if no font size is set
if (pango_font_description_get_size(font) <= 0)
pango_font_description_set_size(font, 10 * PANGO_SCALE);
real_font = pango_context_load_font(gui.text_context, font);
if (real_font == NULL)
{
pango_font_description_free(font);
font = NULL;
}
else
g_object_unref(real_font);
}
if (font == NULL)
{
if (report_error)
semsg(_((char *)e_unknown_font_str), name);
return NULL;
}
return font;
}
#if defined(FEAT_EVAL) || defined(PROTO)
/*
* Return the name of font "font" in allocated memory.
*/
char_u *
gui_mch_get_fontname(GuiFont font, char_u *name UNUSED)
{
if (font != NOFONT)
{
char *pangoname = pango_font_description_to_string(font);
if (pangoname != NULL)
{
char_u *s = vim_strsave((char_u *)pangoname);
g_free(pangoname);
return s;
}
}
return NULL;
}
#endif
/*
* If a font is not going to be used, free its structure.
*/
void
gui_mch_free_font(GuiFont font)
{
if (font != NOFONT)
pango_font_description_free(font);
}
/*
* Cmdline expansion for setting 'guifont' / 'guifontwide'. Will enumerate
* through all fonts for completion. When setting 'guifont' it will only show
* monospace fonts as it's unlikely other fonts would be useful.
*/
void
gui_mch_expand_font(optexpand_T *args, void *param, int (*add_match)(char_u *val))
{
PangoFontFamily **font_families = NULL;
int n_families = 0;
int wide = *(int *)param;
if (args->oe_include_orig_val && *args->oe_opt_value == NUL && !wide)
{
// If guifont is empty, and we want to fill in the orig value, suggest
// the default so the user can modify it.
if (add_match((char_u *)DEFAULT_FONT) != OK)
return;
}
pango_context_list_families(
gui.text_context,
&font_families,
&n_families);
for (int i = 0; i < n_families; i++)
{
if (!wide && !pango_font_family_is_monospace(font_families[i]))
continue;
const char* fam_name = pango_font_family_get_name(font_families[i]);
if (input_conv.vc_type != CONV_NONE)
{
char_u *buf = string_convert(&input_conv, (char_u*)fam_name, NULL);
if (buf != NULL)
{
if (add_match(buf) != OK)
{
vim_free(buf);
break;
}
vim_free(buf);
}
else
break;
}
else
{
if (add_match((char_u *)fam_name) != OK)
break;
}
}
g_free(font_families);
}
/*
* Return the Pixel value (color) for the given color name.
*
* Return INVALCOLOR for error.
*/
guicolor_T
gui_mch_get_color(char_u *name)
{
guicolor_T color = INVALCOLOR;
if (!gui.in_use) // can't do this when GUI not running
return color;
if (name != NULL)
color = gui_get_color_cmn(name);
#if GTK_CHECK_VERSION(3,0,0)
return color;
#else
if (color == INVALCOLOR)
return INVALCOLOR;
return gui_mch_get_rgb_color(
(color & 0xff0000) >> 16,
(color & 0xff00) >> 8,
color & 0xff);
#endif
}
/*
* Return the Pixel value (color) for the given RGB values.
* Return INVALCOLOR for error.
*/
guicolor_T
gui_mch_get_rgb_color(int r, int g, int b)
{
#if GTK_CHECK_VERSION(3,0,0)
return gui_get_rgb_color_cmn(r, g, b);
#else
GdkColor gcolor;
int ret;
gcolor.red = (guint16)(r / 255.0 * 65535 + 0.5);
gcolor.green = (guint16)(g / 255.0 * 65535 + 0.5);
gcolor.blue = (guint16)(b / 255.0 * 65535 + 0.5);
ret = gdk_colormap_alloc_color(gtk_widget_get_colormap(gui.drawarea),
&gcolor, FALSE, TRUE);
return ret != 0 ? (guicolor_T)gcolor.pixel : INVALCOLOR;
#endif
}
/*
* Set the current text foreground color.
*/
void
gui_mch_set_fg_color(guicolor_T color)
{
#if GTK_CHECK_VERSION(3,0,0)
*gui.fgcolor = color_to_rgba(color);
#else
gui.fgcolor->pixel = (unsigned long)color;
#endif
}
/*
* Set the current text background color.
*/
void
gui_mch_set_bg_color(guicolor_T color)
{
#if GTK_CHECK_VERSION(3,0,0)
*gui.bgcolor = color_to_rgba(color);
#else
gui.bgcolor->pixel = (unsigned long)color;
#endif
}
/*
* Set the current text special color.
*/
void
gui_mch_set_sp_color(guicolor_T color)
{
#if GTK_CHECK_VERSION(3,0,0)
*gui.spcolor = color_to_rgba(color);
#else
gui.spcolor->pixel = (unsigned long)color;
#endif
}
/*
* Function-like convenience macro for the sake of efficiency.
*/
#define INSERT_PANGO_ATTR(Attribute, AttrList, Start, End) \
G_STMT_START{ \
PangoAttribute *tmp_attr_; \
tmp_attr_ = (Attribute); \
tmp_attr_->start_index = (Start); \
tmp_attr_->end_index = (End); \
pango_attr_list_insert((AttrList), tmp_attr_); \
}G_STMT_END
static void
apply_wide_font_attr(char_u *s, int len, PangoAttrList *attr_list)
{
char_u *start = NULL;
char_u *p;
int uc;
for (p = s; p < s + len; p += utf_byte2len(*p))
{
uc = utf_ptr2char(p);
if (start == NULL)
{
if (uc >= 0x80 && utf_char2cells(uc) == 2)
start = p;
}
else if (uc < 0x80 // optimization shortcut
|| (utf_char2cells(uc) != 2 && !utf_iscomposing(uc)))
{
INSERT_PANGO_ATTR(pango_attr_font_desc_new(gui.wide_font),
attr_list, start - s, p - s);
start = NULL;
}
}
if (start != NULL)
INSERT_PANGO_ATTR(pango_attr_font_desc_new(gui.wide_font),
attr_list, start - s, len);
}
static int
count_cluster_cells(char_u *s, PangoItem *item,
PangoGlyphString* glyphs, int i,
int *cluster_width,
int *last_glyph_rbearing)
{
char_u *p;
int next; // glyph start index of next cluster
int start, end; // string segment of current cluster
int width; // real cluster width in Pango units
int uc;
int cellcount = 0;
width = glyphs->glyphs[i].geometry.width;
for (next = i + 1; next < glyphs->num_glyphs; ++next)
{
if (glyphs->glyphs[next].attr.is_cluster_start)
break;
else if (glyphs->glyphs[next].geometry.width > width)
width = glyphs->glyphs[next].geometry.width;
}
start = item->offset + glyphs->log_clusters[i];
end = item->offset + ((next < glyphs->num_glyphs) ?
glyphs->log_clusters[next] : item->length);
for (p = s + start; p < s + end; p += utf_byte2len(*p))
{
uc = utf_ptr2char(p);
if (uc < 0x80)
++cellcount;
else if (!utf_iscomposing(uc))
cellcount += utf_char2cells(uc);
}
if (last_glyph_rbearing != NULL
&& cellcount > 0 && next == glyphs->num_glyphs)
{
PangoRectangle ink_rect;
/*
* If a certain combining mark had to be taken from a non-monospace
* font, we have to compensate manually by adapting x_offset according
* to the ink extents of the previous glyph.
*/
pango_font_get_glyph_extents(item->analysis.font,
glyphs->glyphs[i].glyph,
&ink_rect, NULL);
if (PANGO_RBEARING(ink_rect) > 0)
*last_glyph_rbearing = PANGO_RBEARING(ink_rect);
}
if (cellcount > 0)
*cluster_width = width;
return cellcount;
}
/*
* If there are only combining characters in the cluster, we cannot just
* change the width of the previous glyph since there is none. Therefore
* some guesswork is needed.
*
* If ink_rect.x is negative Pango apparently has taken care of the composing
* by itself. Actually setting x_offset = 0 should be sufficient then, but due
* to problems with composing from different fonts we still need to fine-tune
* x_offset to avoid ugliness.
*
* If ink_rect.x is not negative, force overstriking by pointing x_offset to
* the position of the previous glyph. Apparently this happens only with old
* X fonts which don't provide the special combining information needed by
* Pango.
*/
static void
setup_zero_width_cluster(PangoItem *item, PangoGlyphInfo *glyph,
int last_cellcount, int last_cluster_width,
int last_glyph_rbearing)
{
PangoRectangle ink_rect;
PangoRectangle logical_rect;
int width;
width = last_cellcount * gui.char_width * PANGO_SCALE;
glyph->geometry.x_offset = -width + MAX(0, width - last_cluster_width) / 2;
glyph->geometry.width = 0;
pango_font_get_glyph_extents(item->analysis.font,
glyph->glyph,
&ink_rect, &logical_rect);
if (ink_rect.x < 0)
{
glyph->geometry.x_offset += last_glyph_rbearing;
glyph->geometry.y_offset = logical_rect.height
- (gui.char_height - p_linespace) * PANGO_SCALE;
}
else
// If the accent width is smaller than the cluster width, position it
// in the middle.
glyph->geometry.x_offset = -width + MAX(0, width - ink_rect.width) / 2;
}
#if GTK_CHECK_VERSION(3,0,0)
static void
draw_glyph_string(int row, int col, int num_cells, int flags,
PangoFont *font, PangoGlyphString *glyphs,
cairo_t *cr)
#else
static void
draw_glyph_string(int row, int col, int num_cells, int flags,
PangoFont *font, PangoGlyphString *glyphs)
#endif
{
if (!(flags & DRAW_TRANSP))
{
#if GTK_CHECK_VERSION(3,0,0)
cairo_set_source_rgba(cr,
gui.bgcolor->red, gui.bgcolor->green, gui.bgcolor->blue,
gui.bgcolor->alpha);
cairo_rectangle(cr,
FILL_X(col), FILL_Y(row),
num_cells * gui.char_width, gui.char_height);
cairo_fill(cr);
#else
gdk_gc_set_foreground(gui.text_gc, gui.bgcolor);
gdk_draw_rectangle(gui.drawarea->window,
gui.text_gc,
TRUE,
FILL_X(col),
FILL_Y(row),
num_cells * gui.char_width,
gui.char_height);
#endif
}
#if GTK_CHECK_VERSION(3,0,0)
cairo_set_source_rgba(cr,
gui.fgcolor->red, gui.fgcolor->green, gui.fgcolor->blue,
gui.fgcolor->alpha);
cairo_move_to(cr, TEXT_X(col), TEXT_Y(row));
pango_cairo_show_glyph_string(cr, font, glyphs);
#else
gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
gdk_draw_glyphs(gui.drawarea->window,
gui.text_gc,
font,
TEXT_X(col),
TEXT_Y(row),
glyphs);
#endif
// redraw the contents with an offset of 1 to emulate bold
if ((flags & DRAW_BOLD) && !gui.font_can_bold)
#if GTK_CHECK_VERSION(3,0,0)
{
cairo_set_source_rgba(cr,
gui.fgcolor->red, gui.fgcolor->green, gui.fgcolor->blue,
gui.fgcolor->alpha);
cairo_move_to(cr, TEXT_X(col) + 1, TEXT_Y(row));
pango_cairo_show_glyph_string(cr, font, glyphs);
}
#else
gdk_draw_glyphs(gui.drawarea->window,
gui.text_gc,
font,
TEXT_X(col) + 1,
TEXT_Y(row),
glyphs);
#endif
}
/*
* Draw underline and undercurl at the bottom of the character cell.
*/
#if GTK_CHECK_VERSION(3,0,0)
static void
draw_under(int flags, int row, int col, int cells, cairo_t *cr)
#else
static void
draw_under(int flags, int row, int col, int cells)
#endif
{
int i;
int offset;
static const int val[8] = {1, 0, 0, 0, 1, 2, 2, 2 };
int y = FILL_Y(row + 1) - 1;
// Undercurl: draw curl at the bottom of the character cell.
if (flags & DRAW_UNDERC)
{
#if GTK_CHECK_VERSION(3,0,0)
cairo_set_line_width(cr, 1.0);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_BUTT);
cairo_set_source_rgba(cr,
gui.spcolor->red, gui.spcolor->green, gui.spcolor->blue,
gui.spcolor->alpha);
cairo_move_to(cr, FILL_X(col) + 1, y - 2 + 0.5);
for (i = FILL_X(col) + 1; i < FILL_X(col + cells); ++i)
{
offset = val[i % 8];
cairo_line_to(cr, i, y - offset + 0.5);
}
cairo_stroke(cr);
#else
gdk_gc_set_foreground(gui.text_gc, gui.spcolor);
for (i = FILL_X(col); i < FILL_X(col + cells); ++i)
{
offset = val[i % 8];
gdk_draw_point(gui.drawarea->window, gui.text_gc, i, y - offset);
}
gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
#endif
}
// Draw a strikethrough line
if (flags & DRAW_STRIKE)
{
#if GTK_CHECK_VERSION(3,0,0)
cairo_set_line_width(cr, 1.0);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_BUTT);
cairo_set_source_rgba(cr,
gui.spcolor->red, gui.spcolor->green, gui.spcolor->blue,
gui.spcolor->alpha);
cairo_move_to(cr, FILL_X(col), y + 1 - gui.char_height/2 + 0.5);
cairo_line_to(cr, FILL_X(col + cells), y + 1 - gui.char_height/2 + 0.5);
cairo_stroke(cr);
#else
gdk_gc_set_foreground(gui.text_gc, gui.spcolor);
gdk_draw_line(gui.drawarea->window, gui.text_gc,
FILL_X(col), y + 1 - gui.char_height/2,
FILL_X(col + cells), y + 1 - gui.char_height/2);
gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
#endif
}
// Underline: draw a line at the bottom of the character cell.
if (flags & DRAW_UNDERL)
{
// When p_linespace is 0, overwrite the bottom row of pixels.
// Otherwise put the line just below the character.
if (p_linespace > 1)
y -= p_linespace - 1;
#if GTK_CHECK_VERSION(3,0,0)
cairo_set_line_width(cr, 1.0);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_BUTT);
cairo_set_source_rgba(cr,
gui.fgcolor->red, gui.fgcolor->green, gui.fgcolor->blue,
gui.fgcolor->alpha);
cairo_move_to(cr, FILL_X(col), y + 0.5);
cairo_line_to(cr, FILL_X(col + cells), y + 0.5);
cairo_stroke(cr);
#else
gdk_draw_line(gui.drawarea->window, gui.text_gc,
FILL_X(col), y,
FILL_X(col + cells) - 1, y);
#endif
}
}
int
gui_gtk2_draw_string(int row, int col, char_u *s, int len, int flags)
{
char_u *conv_buf = NULL; // result of UTF-8 conversion
char_u *new_conv_buf;
int convlen;
char_u *sp, *bp;
int plen;
int len_sum; // return value needs to add up since we are
// printing substrings
int byte_sum; // byte position in string
char_u *cs; // current *s pointer
int needs_pango; // look ahead, 0=ascii 1=unicode/ligatures
int should_need_pango = FALSE;
int slen;
int is_ligature;
int is_utf8;
char_u backup_ch;
if (gui.text_context == NULL || gtk_widget_get_window(gui.drawarea) == NULL)
return len;
if (output_conv.vc_type != CONV_NONE)
{
/*
* Convert characters from 'encoding' to 'termencoding', which is set
* to UTF-8 by gui_mch_init(). did_set_string_option() in option.c
* prohibits changing this to something else than UTF-8 if the GUI is
* in use.
*/
convlen = len;
conv_buf = string_convert(&output_conv, s, &convlen);
g_return_val_if_fail(conv_buf != NULL, len);
// Correct for differences in char width: some chars are
// double-wide in 'encoding' but single-wide in utf-8. Add a space to
// compensate for that.
for (sp = s, bp = conv_buf; sp < s + len && bp < conv_buf + convlen; )
{
plen = utf_ptr2len(bp);
if ((*mb_ptr2cells)(sp) == 2 && utf_ptr2cells(bp) == 1)
{
new_conv_buf = alloc(convlen + 2);
if (new_conv_buf == NULL)
return len;
plen += bp - conv_buf;
mch_memmove(new_conv_buf, conv_buf, plen);
new_conv_buf[plen] = ' ';
mch_memmove(new_conv_buf + plen + 1, conv_buf + plen,
convlen - plen + 1);
vim_free(conv_buf);
conv_buf = new_conv_buf;
++convlen;
bp = conv_buf + plen;
plen = 1;
}
sp += (*mb_ptr2len)(sp);
bp += plen;
}
s = conv_buf;
len = convlen;
}
/*
* Ligature support and complex utf-8 char optimization:
* String received to output to screen can print using pre-cached glyphs
* (fast) or Pango (slow). Ligatures and multibype utf-8 must use Pango.
* Since we receive mixed content string, split it into logical segments
* that are guaranteed to go through glyphs as much as possible. Since
* single ligature char prints as ascii, print it that way.
*/
len_sum = 0; // return value needs to add up since we are printing
// substrings
byte_sum = 0;
cs = s;
// First char decides starting needs_pango mode, 0=ascii 1=utf8/ligatures.
// Even if it is ligature char, two chars or more make ligature.
// Ascii followed by utf8 is also going through pango.
is_utf8 = (*cs & 0x80);
is_ligature = gui.ligatures_map[*cs] && (len > 1);
if (is_ligature)
is_ligature = gui.ligatures_map[*(cs + 1)];
if (!is_utf8 && len > 1)
is_utf8 = (*(cs + 1) & 0x80) != 0;
needs_pango = is_utf8 || is_ligature;
// split string into ascii and non-ascii (ligatures + utf-8) substrings,
// print glyphs or use Pango
while (cs < s + len)
{
slen = 0;
while (slen < (len - byte_sum))
{
is_ligature = gui.ligatures_map[*(cs + slen)];
// look ahead, single ligature char between ascii is ascii
if (is_ligature && !needs_pango)
{
if ((slen + 1) < (len - byte_sum))
is_ligature = gui.ligatures_map[*(cs + slen + 1)];
else
is_ligature = 0;
}
is_utf8 = *(cs + slen) & 0x80;
// ascii followed by utf8 could be combining
// if so send it through pango
if ((!is_utf8) && ((slen + 1) < (len - byte_sum)))
is_utf8 = (*(cs + slen + 1) & 0x80);
should_need_pango = (is_ligature || is_utf8);
if (needs_pango != should_need_pango) // mode switch
break;
if (needs_pango)
{
if (is_ligature)
{
slen++; // ligature char by char
}
else // is_utf8
{
if ((*(cs + slen) & 0xC0) == 0x80)
{
// a continuation, find next 0xC0 != 0x80 but don't
// include it
while ((slen < (len - byte_sum))
&& ((*(cs + slen) & 0xC0) == 0x80))
{
slen++;
}
}
else if ((*(cs + slen) & 0xE0) == 0xC0)
{
// + one byte utf8
slen++;
}
else if ((*(cs + slen) & 0xF0) == 0xE0)
{
// + two bytes utf8
slen += 2;
}
else if ((*(cs + slen) & 0xF8) == 0xF0)
{
// + three bytes utf8
slen += 3;
}
else
{
// this should not happen, try moving forward, Pango
// will catch it
slen++;
}
}
}
else
{
slen++; // ascii
}
}
if (slen < len)
{
// temporarily zero terminate substring, print, restore char, wrap
backup_ch = *(cs + slen);
*(cs + slen) = NUL;
}
len_sum += gui_gtk2_draw_string_ext(row, col + len_sum,
cs, slen, flags, needs_pango);
if (slen < len)
*(cs + slen) = backup_ch;
cs += slen;
byte_sum += slen;
needs_pango = should_need_pango;
}
vim_free(conv_buf);
return len_sum;
}
int
gui_gtk2_draw_string_ext(
int row,
int col,
char_u *s,
int len,
int flags,
int force_pango)
{
GdkRectangle area; // area for clip mask
PangoGlyphString *glyphs; // glyphs of current item
int column_offset = 0; // column offset in cells
int i;
#if GTK_CHECK_VERSION(3,0,0)
cairo_t *cr;
#endif
/*
* Restrict all drawing to the current screen line in order to prevent
* fuzzy font lookups from messing up the screen.
*/
area.x = gui.border_offset;
area.y = FILL_Y(row);
area.width = gui.num_cols * gui.char_width;
area.height = gui.char_height;
#if GTK_CHECK_VERSION(3,0,0)
cr = cairo_create(gui.surface);
cairo_rectangle(cr, area.x, area.y, area.width, area.height);
cairo_clip(cr);
#else
gdk_gc_set_clip_origin(gui.text_gc, 0, 0);
gdk_gc_set_clip_rectangle(gui.text_gc, &area);
#endif
glyphs = pango_glyph_string_new();
/*
* Optimization hack: If possible, skip the itemize and shaping process
* for pure ASCII strings. This optimization is particularly effective
* because Vim draws space characters to clear parts of the screen.
*/
if (!(flags & DRAW_ITALIC)
&& !((flags & DRAW_BOLD) && gui.font_can_bold)
&& gui.ascii_glyphs != NULL
&& !force_pango)
{
char_u *p;
for (p = s; p < s + len; ++p)
if (*p & 0x80)
goto not_ascii;
pango_glyph_string_set_size(glyphs, len);
for (i = 0; i < len; ++i)
{
glyphs->glyphs[i] = gui.ascii_glyphs->glyphs[2 * s[i]];
glyphs->log_clusters[i] = i;
}
#if GTK_CHECK_VERSION(3,0,0)
draw_glyph_string(row, col, len, flags, gui.ascii_font, glyphs, cr);
#else
draw_glyph_string(row, col, len, flags, gui.ascii_font, glyphs);
#endif
column_offset = len;
}
else
not_ascii:
{
PangoAttrList *attr_list;
GList *item_list;
int cluster_width;
int last_glyph_rbearing;
int cells = 0; // cells occupied by current cluster
// Safety check: pango crashes when invoked with invalid utf-8
// characters.
if (!utf_valid_string(s, s + len))
{
column_offset = len;
goto skipitall;
}
// original width of the current cluster
cluster_width = PANGO_SCALE * gui.char_width;
// right bearing of the last non-composing glyph
last_glyph_rbearing = PANGO_SCALE * gui.char_width;
attr_list = pango_attr_list_new();
// If 'guifontwide' is set then use that for double-width characters.
// Otherwise just go with 'guifont' and let Pango do its thing.
if (gui.wide_font != NULL)
apply_wide_font_attr(s, len, attr_list);
if ((flags & DRAW_BOLD) && gui.font_can_bold)
INSERT_PANGO_ATTR(pango_attr_weight_new(PANGO_WEIGHT_BOLD),
attr_list, 0, len);
if (flags & DRAW_ITALIC)
INSERT_PANGO_ATTR(pango_attr_style_new(PANGO_STYLE_ITALIC),
attr_list, 0, len);
/*
* Break the text into segments with consistent directional level
* and shaping engine. Pure Latin text needs only a single segment,
* so there's no need to worry about the loop's efficiency. Better
* try to optimize elsewhere, e.g. reducing exposes and stuff :)
*/
item_list = pango_itemize(gui.text_context,
(const char *)s, 0, len, attr_list, NULL);
while (item_list != NULL)
{
PangoItem *item;
int item_cells = 0; // item length in cells
item = (PangoItem *)item_list->data;
item_list = g_list_delete_link(item_list, item_list);
/*
* Increment the bidirectional embedding level by 1 if it is not
* even. An odd number means the output will be RTL, but we don't
* want that since Vim handles right-to-left text on its own. It
* would probably be sufficient to just set level = 0, but you can
* never know :)
*
* Unfortunately we can't take advantage of Pango's ability to
* render both LTR and RTL at the same time. In order to support
* that, Vim's main screen engine would have to make use of Pango
* functionality.
*/
item->analysis.level = (item->analysis.level + 1) & (~1U);
// HACK: Overrule the shape engine, we don't want shaping to be
// done, because drawing the cursor would change the display.
item->analysis.shape_engine = default_shape_engine;
#ifdef HAVE_PANGO_SHAPE_FULL
pango_shape_full((const char *)s + item->offset, item->length,
(const char *)s, len, &item->analysis, glyphs);
#else
pango_shape((const char *)s + item->offset, item->length,
&item->analysis, glyphs);
#endif
/*
* Fixed-width hack: iterate over the array and assign a fixed
* width to each glyph, thus overriding the choice made by the
* shaping engine. We use utf_char2cells() to determine the
* number of cells needed.
*
* Also perform all kind of dark magic to get composing
* characters right (and pretty too of course).
*/
for (i = 0; i < glyphs->num_glyphs; ++i)
{
PangoGlyphInfo *glyph;
glyph = &glyphs->glyphs[i];
if (glyph->attr.is_cluster_start)
{
int cellcount;
cellcount = count_cluster_cells(
s, item, glyphs, i, &cluster_width,
(item_list != NULL) ? &last_glyph_rbearing : NULL);
if (cellcount > 0)
{
int width;
width = cellcount * gui.char_width * PANGO_SCALE;
glyph->geometry.x_offset +=
MAX(0, width - cluster_width) / 2;
glyph->geometry.width = width;
}
else
{
// If there are only combining characters in the
// cluster, we cannot just change the width of the
// previous glyph since there is none. Therefore
// some guesswork is needed.
setup_zero_width_cluster(item, glyph, cells,
cluster_width,
last_glyph_rbearing);
}
item_cells += cellcount;
cells = cellcount;
}
else if (i > 0)
{
int width;
// There is a previous glyph, so we deal with combining
// characters the canonical way.
// In some circumstances Pango uses a positive x_offset,
// then use the width of the previous glyph for this one
// and set the previous width to zero.
// Otherwise we get a negative x_offset, Pango has already
// positioned the combining char, keep the widths as they
// are.
// For both adjust the x_offset to position the glyph in
// the middle.
if (glyph->geometry.x_offset >= 0)
{
glyphs->glyphs[i].geometry.width =
glyphs->glyphs[i - 1].geometry.width;
glyphs->glyphs[i - 1].geometry.width = 0;
}
width = cells * gui.char_width * PANGO_SCALE;
glyph->geometry.x_offset +=
MAX(0, width - cluster_width) / 2;
}
else // i == 0 "cannot happen"
{
glyph->geometry.width = 0;
}
}
//// Aaaaand action! **
#if GTK_CHECK_VERSION(3,0,0)
draw_glyph_string(row, col + column_offset, item_cells,
flags, item->analysis.font, glyphs,
cr);
#else
draw_glyph_string(row, col + column_offset, item_cells,
flags, item->analysis.font, glyphs);
#endif
pango_item_free(item);
column_offset += item_cells;
}
pango_attr_list_unref(attr_list);
}
skipitall:
// Draw underline and undercurl.
#if GTK_CHECK_VERSION(3,0,0)
draw_under(flags, row, col, column_offset, cr);
#else
draw_under(flags, row, col, column_offset);
#endif
pango_glyph_string_free(glyphs);
#if GTK_CHECK_VERSION(3,0,0)
cairo_destroy(cr);
gtk_widget_queue_draw_area(gui.drawarea, area.x, area.y,
area.width, area.height);
#else
gdk_gc_set_clip_rectangle(gui.text_gc, NULL);
#endif
return column_offset;
}
/*
* Return OK if the key with the termcap name "name" is supported.
*/
int
gui_mch_haskey(char_u *name)
{
int i;
for (i = 0; special_keys[i].key_sym != 0; i++)
if (name[0] == special_keys[i].code0
&& name[1] == special_keys[i].code1)
return OK;
return FAIL;
}
#if defined(FEAT_EVAL) || defined(PROTO)
/*
* Return the text window-id and display. Only required for X-based GUI's
*/
int
gui_get_x11_windis(Window *win, Display **dis)
{
Display * dpy = gui_mch_get_display();
if (dpy)
{
*dis = dpy;
*win = GDK_WINDOW_XID(gtk_widget_get_window(gui.mainwin));
return OK;
}
*dis = NULL;
*win = 0;
return FAIL;
}
#endif
Display *
gui_mch_get_display(void)
{
if (gui.mainwin != NULL && gtk_widget_get_window(gui.mainwin) != NULL
#if GTK_CHECK_VERSION(3,0,0)
&& GDK_IS_X11_DISPLAY(gtk_widget_get_display(gui.mainwin))
#endif
)
return GDK_WINDOW_XDISPLAY(gtk_widget_get_window(gui.mainwin));
else
return NULL;
}
void
gui_mch_beep(void)
{
GdkDisplay *display;
if (gui.mainwin != NULL && gtk_widget_get_realized(gui.mainwin))
display = gtk_widget_get_display(gui.mainwin);
else
display = gdk_display_get_default();
if (display != NULL)
gdk_display_beep(display);
}
void
gui_mch_flash(int msec)
{
#if GTK_CHECK_VERSION(3,0,0)
// TODO Replace GdkGC with Cairo
(void)msec;
#else
GdkGCValues values;
GdkGC *invert_gc;
if (gui.drawarea->window == NULL)
return;
values.foreground.pixel = gui.norm_pixel ^ gui.back_pixel;
values.background.pixel = gui.norm_pixel ^ gui.back_pixel;
values.function = GDK_XOR;
invert_gc = gdk_gc_new_with_values(gui.drawarea->window,
&values,
GDK_GC_FOREGROUND |
GDK_GC_BACKGROUND |
GDK_GC_FUNCTION);
gdk_gc_set_exposures(invert_gc,
gui.visibility != GDK_VISIBILITY_UNOBSCURED);
/*
* Do a visual beep by changing back and forth in some undetermined way,
* the foreground and background colors. This is due to the fact that
* there can't be really any prediction about the effects of XOR on
* arbitrary X11 servers. However this seems to be enough for what we
* intend it to do.
*/
gdk_draw_rectangle(gui.drawarea->window, invert_gc,
TRUE,
0, 0,
FILL_X((int)Columns) + gui.border_offset,
FILL_Y((int)Rows) + gui.border_offset);
gui_mch_flush();
ui_delay((long)msec, TRUE); // wait so many msec
gdk_draw_rectangle(gui.drawarea->window, invert_gc,
TRUE,
0, 0,
FILL_X((int)Columns) + gui.border_offset,
FILL_Y((int)Rows) + gui.border_offset);
gdk_gc_destroy(invert_gc);
#endif
}
/*
* Invert a rectangle from row r, column c, for nr rows and nc columns.
*/
void
gui_mch_invert_rectangle(int r, int c, int nr, int nc)
{
#if GTK_CHECK_VERSION(3,0,0)
const GdkRectangle rect = {
FILL_X(c), FILL_Y(r), nc * gui.char_width, nr * gui.char_height
};
cairo_t * const cr = cairo_create(gui.surface);
cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0);
# if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1,9,2)
cairo_set_operator(cr, CAIRO_OPERATOR_DIFFERENCE);
# else
// Give an implementation for older cairo versions if necessary.
# endif
cairo_rectangle(cr, rect.x, rect.y, rect.width, rect.height);
cairo_fill(cr);
cairo_destroy(cr);
gtk_widget_queue_draw_area(gui.drawarea, rect.x, rect.y,
rect.width, rect.height);
#else
GdkGCValues values;
GdkGC *invert_gc;
if (gui.drawarea->window == NULL)
return;
values.function = GDK_INVERT;
invert_gc = gdk_gc_new_with_values(gui.drawarea->window,
&values,
GDK_GC_FUNCTION);
gdk_gc_set_exposures(invert_gc, gui.visibility !=
GDK_VISIBILITY_UNOBSCURED);
gdk_draw_rectangle(gui.drawarea->window, invert_gc,
TRUE,
FILL_X(c), FILL_Y(r),
(nc) * gui.char_width, (nr) * gui.char_height);
gdk_gc_destroy(invert_gc);
#endif
}
/*
* Iconify the GUI window.
*/
void
gui_mch_iconify(void)
{
gtk_window_iconify(GTK_WINDOW(gui.mainwin));
}
#if defined(FEAT_EVAL) || defined(PROTO)
/*
* Bring the Vim window to the foreground.
*/
void
gui_mch_set_foreground(void)
{
// Just calling gtk_window_present() used to work in the past, but now this
// sequence appears to be needed:
// - Show the window on top of others.
// - Present the window (also shows it above others).
// - Do not the window on top of others (otherwise it would be stuck there).
gtk_window_set_keep_above(GTK_WINDOW(gui.mainwin), TRUE);
gui_may_flush();
gtk_window_present(GTK_WINDOW(gui.mainwin));
gui_may_flush();
gtk_window_set_keep_above(GTK_WINDOW(gui.mainwin), FALSE);
gui_may_flush();
}
#endif
/*
* Draw a cursor without focus.
*/
void
gui_mch_draw_hollow_cursor(guicolor_T color)
{
int i = 1;
#if GTK_CHECK_VERSION(3,0,0)
cairo_t *cr;
#endif
if (gtk_widget_get_window(gui.drawarea) == NULL)
return;
#if GTK_CHECK_VERSION(3,0,0)
cr = cairo_create(gui.surface);
#endif
gui_mch_set_fg_color(color);
#if GTK_CHECK_VERSION(3,0,0)
cairo_set_source_rgba(cr,
gui.fgcolor->red, gui.fgcolor->green, gui.fgcolor->blue,
gui.fgcolor->alpha);
#else
gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
#endif
if (mb_lefthalve(gui.row, gui.col))
i = 2;
#if GTK_CHECK_VERSION(3,0,0)
cairo_set_line_width(cr, 1.0);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_BUTT);
cairo_rectangle(cr,
FILL_X(gui.col) + 0.5, FILL_Y(gui.row) + 0.5,
i * gui.char_width - 1, gui.char_height - 1);
cairo_stroke(cr);
cairo_destroy(cr);
#else
gdk_draw_rectangle(gui.drawarea->window, gui.text_gc,
FALSE,
FILL_X(gui.col), FILL_Y(gui.row),
i * gui.char_width - 1, gui.char_height - 1);
#endif
}
/*
* Draw part of a cursor, "w" pixels wide, and "h" pixels high, using
* color "color".
*/
void
gui_mch_draw_part_cursor(int w, int h, guicolor_T color)
{
if (gtk_widget_get_window(gui.drawarea) == NULL)
return;
gui_mch_set_fg_color(color);
#if GTK_CHECK_VERSION(3,0,0)
{
cairo_t *cr;
cr = cairo_create(gui.surface);
cairo_set_source_rgba(cr,
gui.fgcolor->red, gui.fgcolor->green, gui.fgcolor->blue,
gui.fgcolor->alpha);
cairo_rectangle(cr,
# ifdef FEAT_RIGHTLEFT
// vertical line should be on the right of current point
CURSOR_BAR_RIGHT ? FILL_X(gui.col + 1) - w :
# endif
FILL_X(gui.col), FILL_Y(gui.row) + gui.char_height - h,
w, h);
cairo_fill(cr);
cairo_destroy(cr);
}
#else // !GTK_CHECK_VERSION(3,0,0)
gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
gdk_draw_rectangle(gui.drawarea->window, gui.text_gc,
TRUE,
# ifdef FEAT_RIGHTLEFT
// vertical line should be on the right of current point
CURSOR_BAR_RIGHT ? FILL_X(gui.col + 1) - w :
# endif
FILL_X(gui.col),
FILL_Y(gui.row) + gui.char_height - h,
w, h);
#endif // !GTK_CHECK_VERSION(3,0,0)
}
/*
* Catch up with any queued X11 events. This may put keyboard input into the
* input buffer, call resize call-backs, trigger timers etc. If there is
* nothing in the X11 event queue (& no timers pending), then we return
* immediately.
*/
void
gui_mch_update(void)
{
while (g_main_context_pending(NULL) && !vim_is_input_buf_full())
g_main_context_iteration(NULL, TRUE);
}
static timeout_cb_type
input_timer_cb(gpointer data)
{
int *timed_out = (int *) data;
// Just inform the caller about the occurrence of it
*timed_out = TRUE;
return FALSE; // don't happen again
}
#ifdef FEAT_JOB_CHANNEL
static timeout_cb_type
channel_poll_cb(gpointer data UNUSED)
{
// Using an event handler for a channel that may be disconnected does
// not work, it hangs. Instead poll for messages.
channel_handle_events(TRUE);
parse_queued_messages();
return TRUE; // repeat
}
#endif
/*
* GUI input routine called by gui_wait_for_chars(). Waits for a character
* from the keyboard.
* wtime == -1 Wait forever.
* wtime == 0 This should never happen.
* wtime > 0 Wait wtime milliseconds for a character.
* Returns OK if a character was found to be available within the given time,
* or FAIL otherwise.
*/
int
gui_mch_wait_for_chars(long wtime)
{
int focus;
guint timer;
static int timed_out;
int retval = FAIL;
#ifdef FEAT_JOB_CHANNEL
guint channel_timer = 0;
#endif
timed_out = FALSE;
// This timeout makes sure that we will return if no characters arrived in
// time. If "wtime" is zero just use one.
if (wtime >= 0)
timer = timeout_add(wtime == 0 ? 1L : wtime,
input_timer_cb, &timed_out);
else
timer = 0;
#ifdef FEAT_JOB_CHANNEL
// If there is a channel with the keep_open flag we need to poll for input
// on them.
if (channel_any_keep_open())
channel_timer = timeout_add(20, channel_poll_cb, NULL);
#endif
focus = gui.in_focus;
do
{
// Stop or start blinking when focus changes
if (gui.in_focus != focus)
{
if (gui.in_focus)
gui_mch_start_blink();
else
gui_mch_stop_blink(TRUE);
focus = gui.in_focus;
}
#ifdef MESSAGE_QUEUE
# ifdef FEAT_TIMERS
did_add_timer = FALSE;
# endif
parse_queued_messages();
# ifdef FEAT_TIMERS
if (did_add_timer)
// Need to recompute the waiting time.
goto theend;
# endif
#endif
/*
* Loop in GTK+ processing until a timeout or input occurs.
* Skip this if input is available anyway (can happen in rare
* situations, sort of race condition).
*/
if (!input_available())
g_main_context_iteration(NULL, TRUE);
// Got char, return immediately
if (input_available())
{
retval = OK;
goto theend;
}
} while (wtime < 0 || !timed_out);
/*
* Flush all eventually pending (drawing) events.
*/
gui_mch_update();
theend:
if (timer != 0 && !timed_out)
timeout_remove(timer);
#ifdef FEAT_JOB_CHANNEL
if (channel_timer != 0)
timeout_remove(channel_timer);
#endif
return retval;
}
/////////////////////////////////////////////////////////////////////////////
// Output drawing routines.
//
// Flush any output to the screen
void
gui_mch_flush(void)
{
if (gui.mainwin != NULL && gtk_widget_get_realized(gui.mainwin))
#if GTK_CHECK_VERSION(2,4,0)
gdk_display_flush(gtk_widget_get_display(gui.mainwin));
#else
gdk_display_sync(gtk_widget_get_display(gui.mainwin));
#endif
}
/*
* Clear a rectangular region of the screen from text pos (row1, col1) to
* (row2, col2) inclusive.
*/
void
gui_mch_clear_block(int row1arg, int col1arg, int row2arg, int col2arg)
{
int col1 = check_col(col1arg);
int col2 = check_col(col2arg);
int row1 = check_row(row1arg);
int row2 = check_row(row2arg);
#if GTK_CHECK_VERSION(3,0,0)
if (gtk_widget_get_window(gui.drawarea) == NULL)
return;
#else
GdkColor color;
if (gui.drawarea->window == NULL)
return;
color.pixel = gui.back_pixel;
#endif
#if GTK_CHECK_VERSION(3,0,0)
{
// Add one pixel to the far right column in case a double-stroked
// bold glyph may sit there.
const GdkRectangle rect = {
FILL_X(col1), FILL_Y(row1),
(col2 - col1 + 1) * gui.char_width + (col2 == Columns - 1),
(row2 - row1 + 1) * gui.char_height
};
cairo_t * const cr = cairo_create(gui.surface);
# if GTK_CHECK_VERSION(3,22,2)
set_cairo_source_rgba_from_color(cr, gui.back_pixel);
# else
GdkWindow * const win = gtk_widget_get_window(gui.drawarea);
cairo_pattern_t * const pat = gdk_window_get_background_pattern(win);
if (pat != NULL)
cairo_set_source(cr, pat);
else
set_cairo_source_rgba_from_color(cr, gui.back_pixel);
# endif
cairo_rectangle(cr, rect.x, rect.y, rect.width, rect.height);
cairo_fill(cr);
cairo_destroy(cr);
gtk_widget_queue_draw_area(gui.drawarea,
rect.x, rect.y, rect.width, rect.height);
}
#else // !GTK_CHECK_VERSION(3,0,0)
gdk_gc_set_foreground(gui.text_gc, &color);
// Clear one extra pixel at the far right, for when bold characters have
// spilled over to the window border.
gdk_draw_rectangle(gui.drawarea->window, gui.text_gc, TRUE,
FILL_X(col1), FILL_Y(row1),
(col2 - col1 + 1) * gui.char_width
+ (col2 == Columns - 1),
(row2 - row1 + 1) * gui.char_height);
#endif // !GTK_CHECK_VERSION(3,0,0)
}
#if GTK_CHECK_VERSION(3,0,0)
static void
gui_gtk_window_clear(GdkWindow *win)
{
const GdkRectangle rect = {
0, 0, gdk_window_get_width(win), gdk_window_get_height(win)
};
cairo_t * const cr = cairo_create(gui.surface);
# if GTK_CHECK_VERSION(3,22,2)
set_cairo_source_rgba_from_color(cr, gui.back_pixel);
# else
cairo_pattern_t * const pat = gdk_window_get_background_pattern(win);
if (pat != NULL)
cairo_set_source(cr, pat);
else
set_cairo_source_rgba_from_color(cr, gui.back_pixel);
# endif
cairo_rectangle(cr, rect.x, rect.y, rect.width, rect.height);
cairo_fill(cr);
cairo_destroy(cr);
gtk_widget_queue_draw_area(gui.drawarea,
rect.x, rect.y, rect.width, rect.height);
}
#else
# define gui_gtk_window_clear(win) gdk_window_clear(win)
#endif
void
gui_mch_clear_all(void)
{
if (gtk_widget_get_window(gui.drawarea) != NULL)
gui_gtk_window_clear(gtk_widget_get_window(gui.drawarea));
}
#if !GTK_CHECK_VERSION(3,0,0)
/*
* Redraw any text revealed by scrolling up/down.
*/
static void
check_copy_area(void)
{
GdkEvent *event;
int expose_count;
if (gui.visibility != GDK_VISIBILITY_PARTIAL)
return;
// Avoid redrawing the cursor while scrolling or it'll end up where
// we don't want it to be. I'm not sure if it's correct to call
// gui_dont_update_cursor() at this point but it works as a quick
// fix for now.
gui_dont_update_cursor(TRUE);
do
{
// Wait to check whether the scroll worked or not.
event = gdk_event_get_graphics_expose(gui.drawarea->window);
if (event == NULL)
break; // received NoExpose event
gui_redraw(event->expose.area.x, event->expose.area.y,
event->expose.area.width, event->expose.area.height);
expose_count = event->expose.count;
gdk_event_free(event);
}
while (expose_count > 0); // more events follow
gui_can_update_cursor();
}
#endif // !GTK_CHECK_VERSION(3,0,0)
#if GTK_CHECK_VERSION(3,0,0)
static void
gui_gtk_surface_copy_rect(int dest_x, int dest_y,
int src_x, int src_y,
int width, int height)
{
cairo_t * const cr = cairo_create(gui.surface);
cairo_rectangle(cr, dest_x, dest_y, width, height);
cairo_clip(cr);
cairo_push_group(cr);
cairo_set_source_surface(cr, gui.surface, dest_x - src_x, dest_y - src_y);
cairo_paint(cr);
cairo_pop_group_to_source(cr);
cairo_paint(cr);
cairo_destroy(cr);
}
#endif
/*
* Delete the given number of lines from the given row, scrolling up any
* text further down within the scroll region.
*/
void
gui_mch_delete_lines(int row, int num_lines)
{
#if GTK_CHECK_VERSION(3,0,0)
const int ncols = gui.scroll_region_right - gui.scroll_region_left + 1;
const int nrows = gui.scroll_region_bot - row + 1;
const int src_nrows = nrows - num_lines;
gui_gtk_surface_copy_rect(
FILL_X(gui.scroll_region_left), FILL_Y(row),
FILL_X(gui.scroll_region_left), FILL_Y(row + num_lines),
gui.char_width * ncols + 1, gui.char_height * src_nrows);
gui_clear_block(
gui.scroll_region_bot - num_lines + 1, gui.scroll_region_left,
gui.scroll_region_bot, gui.scroll_region_right);
gtk_widget_queue_draw_area(gui.drawarea,
FILL_X(gui.scroll_region_left), FILL_Y(row),
gui.char_width * ncols + 1, gui.char_height * nrows);
#else
if (gui.visibility == GDK_VISIBILITY_FULLY_OBSCURED)
return; // Can't see the window
gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
gdk_gc_set_background(gui.text_gc, gui.bgcolor);
// copy one extra pixel, for when bold has spilled over
gdk_window_copy_area(gui.drawarea->window, gui.text_gc,
FILL_X(gui.scroll_region_left), FILL_Y(row),
gui.drawarea->window,
FILL_X(gui.scroll_region_left),
FILL_Y(row + num_lines),
gui.char_width * (gui.scroll_region_right
- gui.scroll_region_left + 1) + 1,
gui.char_height * (gui.scroll_region_bot - row - num_lines + 1));
gui_clear_block(gui.scroll_region_bot - num_lines + 1,
gui.scroll_region_left,
gui.scroll_region_bot, gui.scroll_region_right);
check_copy_area();
#endif // !GTK_CHECK_VERSION(3,0,0)
}
/*
* Insert the given number of lines before the given row, scrolling down any
* following text within the scroll region.
*/
void
gui_mch_insert_lines(int row, int num_lines)
{
#if GTK_CHECK_VERSION(3,0,0)
const int ncols = gui.scroll_region_right - gui.scroll_region_left + 1;
const int nrows = gui.scroll_region_bot - row + 1;
const int src_nrows = nrows - num_lines;
gui_gtk_surface_copy_rect(
FILL_X(gui.scroll_region_left), FILL_Y(row + num_lines),
FILL_X(gui.scroll_region_left), FILL_Y(row),
gui.char_width * ncols + 1, gui.char_height * src_nrows);
gui_clear_block(
row, gui.scroll_region_left,
row + num_lines - 1, gui.scroll_region_right);
gtk_widget_queue_draw_area(gui.drawarea,
FILL_X(gui.scroll_region_left), FILL_Y(row),
gui.char_width * ncols + 1, gui.char_height * nrows);
#else
if (gui.visibility == GDK_VISIBILITY_FULLY_OBSCURED)
return; // Can't see the window
gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
gdk_gc_set_background(gui.text_gc, gui.bgcolor);
// copy one extra pixel, for when bold has spilled over
gdk_window_copy_area(gui.drawarea->window, gui.text_gc,
FILL_X(gui.scroll_region_left), FILL_Y(row + num_lines),
gui.drawarea->window,
FILL_X(gui.scroll_region_left), FILL_Y(row),
gui.char_width * (gui.scroll_region_right
- gui.scroll_region_left + 1) + 1,
gui.char_height * (gui.scroll_region_bot - row - num_lines + 1));
gui_clear_block(row, gui.scroll_region_left,
row + num_lines - 1, gui.scroll_region_right);
check_copy_area();
#endif // !GTK_CHECK_VERSION(3,0,0)
}
/*
* X Selection stuff, for cutting and pasting text to other windows.
*/
void
clip_mch_request_selection(Clipboard_T *cbd)
{
GdkAtom target;
unsigned i;
time_t start;
for (i = 0; i < N_SELECTION_TARGETS; ++i)
{
if (!clip_html && selection_targets[i].info == TARGET_HTML)
continue;
received_selection = RS_NONE;
target = gdk_atom_intern(selection_targets[i].target, FALSE);
gtk_selection_convert(gui.drawarea,
cbd->gtk_sel_atom, target,
(guint32)GDK_CURRENT_TIME);
// Hack: Wait up to three seconds for the selection. A hang was
// noticed here when using the netrw plugin combined with ":gui"
// during the FocusGained event.
start = time(NULL);
while (received_selection == RS_NONE && time(NULL) < start + 3)
g_main_context_iteration(NULL, TRUE); // wait for selection_received_cb
if (received_selection != RS_FAIL)
return;
}
if (gui_mch_get_display())
// Final fallback position - use the X CUT_BUFFER0 store
yank_cut_buffer0(GDK_WINDOW_XDISPLAY(gtk_widget_get_window(gui.mainwin)),
cbd);
}
/*
* Disown the selection.
*/
void
clip_mch_lose_selection(Clipboard_T *cbd UNUSED)
{
if (in_selection_clear_event)
return;
gtk_selection_owner_set(NULL, cbd->gtk_sel_atom, gui.event_time);
gui_mch_update();
}
/*
* Own the selection and return OK if it worked.
*/
int
clip_mch_own_selection(Clipboard_T *cbd)
{
// If we're blocking autocmds, we are filling the register to offer the
// selection (inside selection-get)
if (is_autocmd_blocked())
return OK;
int success;
success = gtk_selection_owner_set(gui.drawarea, cbd->gtk_sel_atom,
gui.event_time);
// don't update on every visual selection change
if (!(cbd->owned && VIsual_active))
gui_gtk_set_selection_targets(cbd->gtk_sel_atom);
gui_mch_update();
return (success) ? OK : FAIL;
}
/*
* Send the current selection to the clipboard. Do nothing for X because we
* will fill in the selection only when requested by another app.
*/
void
clip_mch_set_selection(Clipboard_T *cbd UNUSED)
{
}
#if (defined(FEAT_XCLIPBOARD) && defined(USE_SYSTEM)) || defined(PROTO)
int
clip_gtk_owner_exists(Clipboard_T *cbd)
{
return gdk_selection_owner_get(cbd->gtk_sel_atom) != NULL;
}
#endif
#if defined(FEAT_MENU) || defined(PROTO)
/*
* Make a menu item appear either active or not active (grey or not grey).
*/
void
gui_mch_menu_grey(vimmenu_T *menu, int grey)
{
if (menu->id == NULL)
return;
if (menu_is_separator(menu->name))
grey = TRUE;
gui_mch_menu_hidden(menu, FALSE);
// Be clever about bitfields versus true booleans here!
if (!gtk_widget_get_sensitive(menu->id) == !grey)
{
gtk_widget_set_sensitive(menu->id, !grey);
gui_mch_update();
}
}
/*
* Make menu item hidden or not hidden.
*/
void
gui_mch_menu_hidden(vimmenu_T *menu, int hidden)
{
if (menu->id == 0)
return;
if (hidden)
{
if (gtk_widget_get_visible(menu->id))
{
gtk_widget_hide(menu->id);
gui_mch_update();
}
}
else
{
if (!gtk_widget_get_visible(menu->id))
{
gtk_widget_show(menu->id);
gui_mch_update();
}
}
}
/*
* This is called after setting all the menus to grey/hidden or not.
*/
void
gui_mch_draw_menubar(void)
{
// just make sure that the visual changes get effect immediately
gui_mch_update();
}
#endif // FEAT_MENU
/*
* Scrollbar stuff.
*/
void
gui_mch_enable_scrollbar(scrollbar_T *sb, int flag)
{
if (sb->id == NULL)
return;
gtk_widget_set_visible(sb->id, flag);
update_window_manager_hints(0, 0);
}
/*
* Return the RGB value of a pixel as long.
*/
guicolor_T
gui_mch_get_rgb(guicolor_T pixel)
{
#if GTK_CHECK_VERSION(3,0,0)
return (long_u)pixel;
#else
GdkColor color;
gdk_colormap_query_color(gtk_widget_get_colormap(gui.drawarea),
(unsigned long)pixel, &color);
return (guicolor_T)(
(((unsigned)color.red & 0xff00) << 8)
| ((unsigned)color.green & 0xff00)
| (((unsigned)color.blue & 0xff00) >> 8));
#endif
}
/*
* Get current mouse coordinates in text window.
*/
void
gui_mch_getmouse(int *x, int *y)
{
gui_gtk_get_pointer(gui.drawarea, x, y, NULL);
}
void
gui_mch_setmouse(int x, int y)
{
// Sorry for the Xlib call, but we can't avoid it, since there is no
// internal GDK mechanism present to accomplish this. (and for good
// reason...)
Display * dpy = gui_mch_get_display();
if (dpy)
XWarpPointer(dpy, (Window)0,
GDK_WINDOW_XID(gtk_widget_get_window(gui.drawarea)),
0, 0, 0U, 0U, x, y);
}
#ifdef FEAT_MOUSESHAPE
// The last set mouse pointer shape is remembered, to be used when it goes
// from hidden to not hidden.
static int last_shape = 0;
#endif
/*
* Use the blank mouse pointer or not.
*
* hide: TRUE = use blank ptr, FALSE = use parent ptr
*/
void
gui_mch_mousehide(int hide)
{
if (gui.pointer_hidden == hide)
return;
gui.pointer_hidden = hide;
if (gtk_widget_get_window(gui.drawarea) && gui.blank_pointer != NULL)
{
if (hide)
gdk_window_set_cursor(gtk_widget_get_window(gui.drawarea),
gui.blank_pointer);
else
#ifdef FEAT_MOUSESHAPE
mch_set_mouse_shape(last_shape);
#else
gdk_window_set_cursor(gtk_widget_get_window(gui.drawarea), NULL);
#endif
}
}
#if defined(FEAT_MOUSESHAPE) || defined(PROTO)
// Table for shape IDs. Keep in sync with the mshape_names[] table in
// misc2.c!
static const int mshape_ids[] =
{
GDK_LEFT_PTR, // arrow
GDK_CURSOR_IS_PIXMAP, // blank
GDK_XTERM, // beam
GDK_SB_V_DOUBLE_ARROW, // updown
GDK_SIZING, // udsizing
GDK_SB_H_DOUBLE_ARROW, // leftright
GDK_SIZING, // lrsizing
GDK_WATCH, // busy
GDK_X_CURSOR, // no
GDK_CROSSHAIR, // crosshair
GDK_HAND1, // hand1
GDK_HAND2, // hand2
GDK_PENCIL, // pencil
GDK_QUESTION_ARROW, // question
GDK_RIGHT_PTR, // right-arrow
GDK_CENTER_PTR, // up-arrow
GDK_LEFT_PTR // last one
};
void
mch_set_mouse_shape(int shape)
{
int id;
GdkCursor *c;
if (gtk_widget_get_window(gui.drawarea) == NULL)
return;
if (shape == MSHAPE_HIDE || gui.pointer_hidden)
gdk_window_set_cursor(gtk_widget_get_window(gui.drawarea),
gui.blank_pointer);
else
{
if (shape >= MSHAPE_NUMBERED)
{
id = shape - MSHAPE_NUMBERED;
if (id >= GDK_LAST_CURSOR)
id = GDK_LEFT_PTR;
else
id &= ~1; // they are always even (why?)
}
else if (shape < (int)ARRAY_LENGTH(mshape_ids))
id = mshape_ids[shape];
else
return;
c = gdk_cursor_new_for_display(
gtk_widget_get_display(gui.drawarea), (GdkCursorType)id);
gdk_window_set_cursor(gtk_widget_get_window(gui.drawarea), c);
# if GTK_CHECK_VERSION(3,0,0)
g_object_unref(G_OBJECT(c));
# else
gdk_cursor_destroy(c); // Unref, actually. Bloody GTK+ 1.
# endif
}
if (shape != MSHAPE_HIDE)
last_shape = shape;
}
#endif // FEAT_MOUSESHAPE
#if defined(FEAT_SIGN_ICONS) || defined(PROTO)
/*
* Signs are currently always 2 chars wide. With GTK+ 2, the image will be
* scaled down if the current font is not big enough, or scaled up if the image
* size is less than 3/4 of the maximum sign size. With GTK+ 1, the pixmap
* will be cut off if the current font is not big enough, or centered if it's
* too small.
*/
# define SIGN_WIDTH (2 * gui.char_width)
# define SIGN_HEIGHT (gui.char_height)
# define SIGN_ASPECT ((double)SIGN_HEIGHT / (double)SIGN_WIDTH)
void
gui_mch_drawsign(int row, int col, int typenr)
{
GdkPixbuf *sign;
sign = (GdkPixbuf *)sign_get_image(typenr);
if (sign == NULL || gui.drawarea == NULL
|| gtk_widget_get_window(gui.drawarea) == NULL)
return;
int width;
int height;
int xoffset;
int yoffset;
int need_scale;
width = gdk_pixbuf_get_width(sign);
height = gdk_pixbuf_get_height(sign);
/*
* Decide whether we need to scale. Allow one pixel of border
* width to be cut off, in order to avoid excessive scaling for
* tiny differences in font size.
* Do scale to fit the height to avoid gaps because of linespacing.
*/
need_scale = (width > SIGN_WIDTH + 2
|| height != SIGN_HEIGHT
|| (width < 3 * SIGN_WIDTH / 4
&& height < 3 * SIGN_HEIGHT / 4));
if (need_scale)
{
double aspect;
int w = width;
int h = height;
// Keep the original aspect ratio
aspect = (double)height / (double)width;
width = (double)SIGN_WIDTH * SIGN_ASPECT / aspect;
width = MIN(width, SIGN_WIDTH);
if (((double)(MAX(height, SIGN_HEIGHT)) /
(double)(MIN(height, SIGN_HEIGHT))) < 1.15)
{
// Change the aspect ratio by at most 15% to fill the
// available space completely.
height = (double)SIGN_HEIGHT * SIGN_ASPECT / aspect;
height = MIN(height, SIGN_HEIGHT);
}
else
height = (double)width * aspect;
if (w == width && h == height)
{
// no change in dimensions; don't decrease reference counter
// (below)
need_scale = FALSE;
}
else
{
// This doesn't seem to be worth caching, and doing so would
// complicate the code quite a bit.
sign = gdk_pixbuf_scale_simple(sign, width, height,
GDK_INTERP_BILINEAR);
if (sign == NULL)
return; // out of memory
}
}
// The origin is the upper-left corner of the pixmap. Therefore
// these offset may become negative if the pixmap is smaller than
// the 2x1 cells reserved for the sign icon.
xoffset = (width - SIGN_WIDTH) / 2;
yoffset = (height - SIGN_HEIGHT) / 2;
# if GTK_CHECK_VERSION(3,0,0)
{
cairo_t *cr;
cairo_surface_t *bg_surf;
cairo_t *bg_cr;
cairo_surface_t *sign_surf;
cairo_t *sign_cr;
cr = cairo_create(gui.surface);
bg_surf = cairo_surface_create_similar(gui.surface,
cairo_surface_get_content(gui.surface),
SIGN_WIDTH, SIGN_HEIGHT);
bg_cr = cairo_create(bg_surf);
cairo_set_source_rgba(bg_cr,
gui.bgcolor->red, gui.bgcolor->green, gui.bgcolor->blue,
gui.bgcolor->alpha);
cairo_paint(bg_cr);
sign_surf = cairo_surface_create_similar(gui.surface,
cairo_surface_get_content(gui.surface),
SIGN_WIDTH, SIGN_HEIGHT);
sign_cr = cairo_create(sign_surf);
gdk_cairo_set_source_pixbuf(sign_cr, sign, -xoffset, -yoffset);
cairo_paint(sign_cr);
cairo_set_operator(sign_cr, CAIRO_OPERATOR_DEST_OVER);
cairo_set_source_surface(sign_cr, bg_surf, 0, 0);
cairo_paint(sign_cr);
cairo_set_source_surface(cr, sign_surf, FILL_X(col), FILL_Y(row));
cairo_paint(cr);
cairo_destroy(sign_cr);
cairo_surface_destroy(sign_surf);
cairo_destroy(bg_cr);
cairo_surface_destroy(bg_surf);
cairo_destroy(cr);
gtk_widget_queue_draw_area(gui.drawarea,
FILL_X(col), FILL_Y(col), width, height);
}
# else // !GTK_CHECK_VERSION(3,0,0)
gdk_gc_set_foreground(gui.text_gc, gui.bgcolor);
gdk_draw_rectangle(gui.drawarea->window,
gui.text_gc,
TRUE,
FILL_X(col),
FILL_Y(row),
SIGN_WIDTH,
SIGN_HEIGHT);
gdk_pixbuf_render_to_drawable_alpha(sign,
gui.drawarea->window,
MAX(0, xoffset),
MAX(0, yoffset),
FILL_X(col) - MIN(0, xoffset),
FILL_Y(row) - MIN(0, yoffset),
MIN(width, SIGN_WIDTH),
MIN(height, SIGN_HEIGHT),
GDK_PIXBUF_ALPHA_BILEVEL,
127,
GDK_RGB_DITHER_NORMAL,
0, 0);
# endif // !GTK_CHECK_VERSION(3,0,0)
if (need_scale)
g_object_unref(sign);
}
void *
gui_mch_register_sign(char_u *signfile)
{
if (signfile[0] != NUL && signfile[0] != '-' && gui.in_use)
{
GdkPixbuf *sign;
GError *error = NULL;
char_u *message;
sign = gdk_pixbuf_new_from_file((const char *)signfile, &error);
if (error == NULL)
return sign;
message = (char_u *)error->message;
if (message != NULL && input_conv.vc_type != CONV_NONE)
message = string_convert(&input_conv, message, NULL);
if (message != NULL)
{
// The error message is already translated and will be more
// descriptive than anything we could possibly do ourselves.
semsg("E255: %s", message);
if (input_conv.vc_type != CONV_NONE)
vim_free(message);
}
g_error_free(error);
}
return NULL;
}
void
gui_mch_destroy_sign(void *sign)
{
if (sign != NULL)
g_object_unref(sign);
}
#endif // FEAT_SIGN_ICONS