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+/* vi:set ts=8 sts=4 sw=4:
+ *
+ * VIM - Vi IMproved	by Bram Moolenaar
+ *			Visual Workshop integration by Gordon Prieur
+ *
+ * Do ":help uganda"  in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ */
+/*
+  THIS IS AN UNSTABLE INTERFACE! It is unsupported and will likely
+  change in future releases, possibly breaking compatibility!
+*/
+
+#ifndef _INTEGRATION_H
+#define _INTEGRATION_H
+
+#include <X11/Intrinsic.h>
+#include <Xm/Xm.h>
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/* Enable NoHands test support functions. Define this only if you want to
+   compile in support in the editor such that it can be run under
+   the WorkShop test suite. */
+#ifndef NOHANDS_SUPPORT_FUNCTIONS
+#define NOHANDS_SUPPORT_FUNCTIONS
+#endif
+
+
+/* This header file has three parts.
+ * 1. Functions you need to implement; these are called by the integration
+ *    library
+ * 2. Functions you need to call when certain events happen in the editor;
+ *    these are implemented by the integration library
+ * 3. Utility functions provided by the integration library; these make
+ *	  task 1 a bit easier.
+ */
+
+/*
+ * The following functions need to be implemented by the editor
+ * integration code (and will be editor-specific). Please see the
+ * sample workshop.c file for comments explaining what each functions
+ * needs to do, what the arguments mean, etc.
+ */
+
+/*
+ * This string is recognized by eserve and should be all lower case.
+ * This is how the editor detects that it is talking to NEdit instead
+ * of Vim, for example, when the connection is initiated from the editor.
+ * Examples: "nedit", "gvim"
+ */
+char *workshop_get_editor_name();
+
+/*
+ * Version number of the editor.
+ * This number is communicated along with the protocol
+ * version to the application.
+ * Examples: "5.0.2", "19.3"
+ */
+char *workshop_get_editor_version();
+
+
+/* Goto a given line in a given file */
+void workshop_goto_line(char *filename, int lineno);
+
+
+/* Set mark in a given file */
+void workshop_set_mark(char *filename, int lineno, int markId, int type);
+
+
+/* Change mark type (for example from current-pc to pc-and-breakpoint) */
+void workshop_change_mark_type(char *filename, int markId, int type);
+
+/*
+ * Goto the given mark in a file (e.g. show it).
+ * If message is not null, display it in the footer.
+ */
+
+void workshop_goto_mark(char *filename, int markId, char *message);
+
+
+/* Delete mark */
+void workshop_delete_mark(char *filename, int markId);
+
+/* Begin/end pair of messages indicating that a series of _set_mark and
+ * _delete_mark messages will be sent. This can/should be used to suppress gui
+ * redraws between the begin and end messages. For example, if you switch
+ * to a headerfile that has a class breakpoint set, there may be hundreds
+ * of marks that need to be added. You don't want to refresh the gui for each
+ * added sign, you want to wait until the final end message.
+ */
+void workshop_mark_batch_begin();
+void workshop_mark_batch_end();
+
+
+/* Load a given file into the WorkShop buffer. "frameid" is a token string
+ * that identifies which frame the file would like to be loaded into. This
+ * will usually be null, in which case you should use the default frame.
+ * However, if frameid is not null, you need to find a frame that has this
+ * frameid, and replace the file in that frame. Finally, if the frameid is
+ * one you haven't seen before, you should create a new frame for this file.
+ * Note that "frameid" is a string value, not just an opaque pointer, so
+ * you should use strcmp rather than == when testing for equality.
+ */
+void workshop_load_file(char *filename, int line, char *frameid);
+
+
+/* Reload the WorkShop buffer */
+void workshop_reload_file(char *filename, int line);
+
+
+/* Show the given file */
+void workshop_show_file(char *filename);
+
+
+/* Front the given file */
+void workshop_front_file(char *filename);
+
+
+/* Save the given file  */
+void workshop_save_file(char *filename);
+
+/* Save all WorkShop edited files. You can ask user about modified files
+ * and skip saving any files the user doesn't want to save.
+ * This function is typically called when the user issues a build, a fix,
+ * etc. (and also if you select "Save All" from the File menu :-)
+ */
+void workshop_save_files();
+
+/* Show a message in all footers.
+   Severity currently is not defined. */
+void workshop_footer_message(char *message, int severity);
+
+/* Minimize all windows */
+void workshop_minimize();
+
+
+/* Maximize all windows */
+void workshop_maximize();
+
+
+/*
+ * Create a new mark type, assign it a given index, a given textbackground
+ * color, and a given left-margin sign (where sign is a filename to an
+ * .xpm file)
+ */
+void workshop_add_mark_type(int idx, char *colorspec, char *sign);
+
+
+/* Get mark line number */
+int workshop_get_mark_lineno(char *filename, int markId);
+
+
+/* Exit editor; save confirmation dialogs are okay */
+void workshop_quit();
+
+/* Set an editor option.
+ * For example, name="syntax",value="on" would enable syntax highlighting.
+ * The currently defined options are:
+ *    lineno		{on,off}	show line numbers
+ *    syntax		{on,off}	highlight syntax
+ *    parentheses	{on,off}	show matching parentheses
+ * The following options are interpreted by the library for you (so you
+ * will never see the message. However, the implementation requires you
+ * to provide certain callbacks, like restore hotkeys or save all files.
+ * These are documented separately).
+ *    workshopkeys	{on,off}	set workshop hotkeys
+ *    savefiles		{on,off}	save all files before issuing a build
+ *    balloon		{on,off}	enable/disable balloon evaluate
+ *
+ * IGNORE an option if you do not recognize it.
+ */
+void workshop_set_option(char *name, char *value);
+
+/*
+ * (See workshop_add_frame first.) This function notifies the editor
+ * that the frame for the given window (indicated by "frame", which
+ * was supplied by the editor in workshop_add_frame) has been created.
+ * This can happen much later than the workshop_add_frame message, since
+ * often a window is created on editor startup, while the frame description
+ * is passed over from eserve much later, when the connection is complete.
+ * This gives the editor a chance to kick its GUI to show the frame
+ * properly; typically you'll unmanage and remanage the parent widget to
+ * force a geometry recalculation.
+ */
+
+void workshop_reconfigure_frame(void *frame);
+
+
+/* Are there any moved marks? If so, call workshop_move_mark on
+ * each of them now. This is how eserve can find out if for example
+ * breakpoints have moved when a program has been recompiled and
+ * reloaded into dbx.
+ */
+void workshop_moved_marks(char *filename);
+
+
+/* A button in the toolbar has been pushed. "frame" is provided
+ * which should let you determine which toolbar had a button pushed
+ * (you supplied this clientData when you created a toolbar). From
+ * this you should be able to figure out which file the operation
+ * applies to, and for that window the cursor line and column,
+ * selection begin line and column, selection end line and column,
+ * selection text and selection text length. The column numbers are
+ * currently unused but implement it anyway in case we decide to use
+ * them in the future.
+ * Note that frame can be NULL. In this case, you should pick
+ * a default window to translate coordinates for (ideally, the
+ * last window the user has operated on.) This will be the case when
+ * the user clicks on a Custom Button programmed to take the current
+ * line number as an argument. Here it's ambiguous which buffer
+ * to use, so you need to pick one.
+ * (Interface consideration: Perhaps we instead should add smarts
+ * into the library such that we remember which frame pointer
+ * we last noticed (e.g. last call to get_positions, or perhaps
+ * last add_frame) and then pass that instead? For example, we could
+ * have all workshop operations return the clientData when passed
+ * the filename (or add a filename-to-clientData converter?) and then
+ * remember the last filename/clientData used.
+ */
+int workshop_get_positions(void *frame,
+			   char **filename,
+			   int *curLine,
+			   int *curCol,
+			   int *selStartLine,
+			   int *selStartCol,
+			   int *selEndLine,
+			   int *selEndCol,
+			   int *selLength,
+			   char **selection);
+
+/* The following function should return the height of a character
+ * in the text display. This is used to pick out a suitable size
+ * for the signs to match the text (currently available in three
+ * sizes). If you just return 0, WorkShop will use the default
+ * sign size. (Use XmStringExtent on character "A" to get the height.)
+ */
+
+int workshop_get_font_height(void);
+
+/* The following function requests that you register the given
+ * hotkey as a keyboard accelerator for all frames. Whenever the
+ * hotkey is pressed, you should invoke  workshop_hotkey_pressed
+ * and pass the current frame pointer as an argument as well as
+ * the clientData pointer passed in to this function.
+ * The remove function unregisters the hotkey.
+ */
+void workshop_register_hotkey(Modifiers modifiers, KeySym keysym,
+			      void *clientData);
+void workshop_unregister_hotkey(Modifiers modifiers, KeySym keysym,
+				void *clientData);
+
+
+
+
+/*
+ *
+ * The following functions notify eserve of important editor events,
+ * such as files being modified, files being saved, etc. You must
+ * sprinkle your editor code with calls to these. For example, whenever
+ * a file is modified (well, when its read-only status changes to modified),
+ * call workshop_file_modified().
+ *
+ */
+
+
+
+/* Connect with eserve. Add this call after you editor initialization
+ * is done, right before entering the event loop or blocking on input.
+ * This will set up a socket connection with eserve.
+ */
+void workshop_connect(XtAppContext context);
+
+/* A file has been opened. */
+void workshop_file_opened(char *filename, int readOnly);
+
+
+/* A file has been saved. Despite its name, eserve also uses this
+ * message to mean a file has been reverted or unmodified.
+ */
+void workshop_file_saved(char *filename);
+
+
+/* A file has been closed */
+void workshop_file_closed(char *filename);
+
+/* Like workshop_file_closed, but also inform eserve what line the
+   cursor was on when you left the file. That way eserve can put you
+   back where you left off when you return to this file. */
+void workshop_file_closed_lineno(char *filename, int line);
+
+/* A file has been modified */
+void workshop_file_modified(char *filename);
+
+
+/*
+ * A mark has been moved. Only call this as a response to
+ * a workshop_moved_marks request call.
+ */
+void workshop_move_mark(char *filename, int markId, int newLineno);
+
+/* Tell the integration library about a new frame being added.
+ * Supply a form for the toolbar, a label for the footer, and an
+ * XmPulldown menu for the WorkShop menu to attach to. Top and bottom
+ * are the widgets above and below the toolbar form widget, if
+ * any. Call this function when you create a new window. It returns a
+ * void *, a handle which you should keep and return when you delete
+ * the window with workshop_delete_toolbar.  The "footer" argument
+ * points to a Label widget that is going to be used as a status
+ * message area, and "menu" (if any) points to an Menu widget that
+ * should contain a WorkShop menu.  Clientdata is a pointer which is
+ * only used by the editor. It will typically be a pointer to the
+ * window object that the toolbar is placed in. If you have multiple
+ * windows, you need to use this pointer to figure out which window
+ * (and thus corresponding buffer) the user has clicked on to respond
+ * to the workshop_get_positions message.
+ * Each frame's clientData ("frame") should be unique.
+ */
+void *workshop_add_frame(void *frame, Widget form,
+			   Widget top, Widget bottom, Widget footer,
+			   Widget menu);
+
+/* Delete a window/frame. Call this when an editor window is being deleted. */
+void workshop_delete_frame(void *handle);
+
+/* Add a balloon evaluate text area. "frame" is used the same way
+ * as in workshop_add_frame. This call is not part of workshop_add_frame because
+ * a frame can have multiple tooltip areas (typically, an editor frame that
+ * is split showing multiple buffers will have a separate tooltip area for
+ * each text widget. Each such area is called a "window" (consistent with
+ * XEmacs terminology). Separate these by the window argument if necessary.
+ * You will need to implement workshop_get_balloon_text such that it uses
+ * these two arguments to derive the file, line etc. for the tip.
+ * Call the remove function if you delete this area such that the integration
+ * library can update itself. You must call workshop_add_frame before you
+ * call add_balloon_eval_area, and you must pass the same frame pointer.
+ */
+void workshop_add_balloon_eval_area(void *frame, void *window, Widget widget);
+void workshop_remove_balloon_eval_area(void *frame, void *window, Widget widget);
+
+
+/* For a given mouse position inside the balloon area (passed as x,y),
+ * return the balloon text to be evaluated. There are two scenarios:
+ * If the position is inside the selection, return the selection
+ * string.  Else, return the full line (or possibly the full line up
+ * to the last semicolon (that's TBD), along with an index pointing to
+ * where which character the mouse is over.
+ * If we have the selection-scenario, set mouseIndex to -1 to indicate
+ * that no autoexpansion should occur but that the selection should
+ * be evaluated as is.
+ *
+ * XXX Does dbx need more information here, like the filename and line
+ * number in order to determine the correct language and scope to be
+ * used during evaluation?? Or should it just work like the p= button
+ * (where the current scope and language is used, even if you are
+ * pointing at a different file with a different scope) ?
+ */
+int workshop_get_balloon_text(Position x, Position y,
+			      void *frame,
+			      void *window,
+			      char **filename,
+			      int *line,
+			      char **text,
+			      int *mouseIndex);
+
+
+/* Window size and location
+ * WorkShop will attempt to restore the size and location of a single
+ * editor frame. For vi, this window is designated as the "reusable" one.
+ * You can implement your own scheme for determining which window you
+ * want to associate with WorkShop. Whenever the size and location of
+ * this window is changed, call the following function to notify eserve.
+ * Like workshop_invoked, this can be called before the workshop_connect()
+ * call.
+ */
+void workshop_frame_moved(int new_x, int new_y, int new_w, int new_h);
+Boolean workshop_get_width_height(int *, int *);
+Boolean workshop_get_rows_cols(int *, int *);
+
+/* This function should be invoked when you press a hotkey
+ * set up by workshop_register_hotkey. Pass the clientData
+ * to it that was given to you with workshop_register_hotkey.
+*/
+void workshop_hotkey_pressed(void *frame, void *clientData);
+
+
+
+
+
+/*
+ * Utility functions
+ * These provide convenience functions to simplify implementing some
+ * of the above functions.
+ *
+ */
+
+/* Were we invoked by WorkShop? This function can be used early during startup
+ * if you want to do things differently if the editor is started standalone
+ * or in WorkShop mode. For example, in standalone mode you may not want to
+ * add a footer/message area or a sign gutter.
+ */
+int workshop_invoked(void);
+
+/*
+ *Set the desktop icon of the current shell to the given xpm icon.
+ * Standard WorkShop desktop icons should be 48x48.
+ */
+
+void workshop_set_icon(Display *display, Widget shell, char **xpmdata,
+		       int width, int height);
+
+
+/* Minimize (iconify) the given shell */
+void workshop_minimize_shell(Widget shell);
+
+/* Maximize (deiconify) the given shell */
+void workshop_maximize_shell(Widget shell);
+
+/* Called by frame.cc -- editor shouldn't call this directly.
+ * Perhaps we need an integrationP.h file ? */
+void workshop_perform_verb(char *verb, void *clientData);
+void workshop_send_message(char *buf);
+
+
+#ifdef NOHANDS_SUPPORT_FUNCTIONS
+/* The following functions are needed to run the WorkShop testsuite
+ * with this editor. You don't need to implement these unless you
+ * intend for your editor to be run by Workshop's testsuite.
+ * getcursorrow should return the number of lines from the top of
+ * the window the cursor is; similarly for getcursorcol.
+ */
+char *workshop_test_getcurrentfile();
+int workshop_test_getcursorrow();
+int workshop_test_getcursorcol();
+char *workshop_test_getcursorrowtext();
+char *workshop_test_getselectedtext();
+#endif
+
+/*
+ * Struct used to set/unset the sensitivity of verbs.
+ */
+typedef struct {
+	char		*verb;
+	Boolean		sense;
+} VerbSense;
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif /* _INTEGRATION_H */