Include a stripped-down version of FLTK in tree and add a USE_INCLUDED_FLTK option to build against it.


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4603 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/fltk/src/Fl_Window.cxx b/common/fltk/src/Fl_Window.cxx
new file mode 100644
index 0000000..1aadb01
--- /dev/null
+++ b/common/fltk/src/Fl_Window.cxx
@@ -0,0 +1,293 @@
+//
+// "$Id: Fl_Window.cxx 8472 2011-02-25 08:44:47Z AlbrechtS $"
+//
+// Window widget class for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2010 by Bill Spitzak and others.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems on the following page:
+//
+//     http://www.fltk.org/str.php
+//
+
+// The Fl_Window is a window in the fltk library.
+// This is the system-independent portions.  The huge amount of 
+// crap you need to do to communicate with X is in Fl_x.cxx, the
+// equivalent (but totally different) crap for MSWindows is in Fl_win32.cxx
+#include <config.h>
+#include <FL/Fl.H>
+#include <FL/x.H>
+#include <FL/Fl_Window.H>
+#include <stdlib.h>
+#include "flstring.h"
+
+#ifdef __APPLE_QUARTZ__
+#include <FL/fl_draw.H>
+#endif
+
+char *Fl_Window::default_xclass_ = 0L;
+
+void Fl_Window::_Fl_Window() {
+  type(FL_WINDOW);
+  box(FL_FLAT_BOX);
+  if (Fl::scheme_bg_) {
+    labeltype(FL_NORMAL_LABEL);
+    align(FL_ALIGN_CENTER | FL_ALIGN_INSIDE | FL_ALIGN_CLIP);
+    image(Fl::scheme_bg_);
+  } else {
+    labeltype(FL_NO_LABEL);
+  }
+  i = 0;
+  xclass_ = 0;
+  icon_ = 0;
+  iconlabel_ = 0;
+  resizable(0);
+  size_range_set = 0;
+  minw = maxw = minh = maxh = 0;
+  callback((Fl_Callback*)default_callback);
+}
+
+Fl_Window::Fl_Window(int X,int Y,int W, int H, const char *l)
+: Fl_Group(X, Y, W, H, l) {
+  cursor_default = FL_CURSOR_DEFAULT;
+  cursor_fg      = FL_BLACK;
+  cursor_bg      = FL_WHITE;
+
+  _Fl_Window();
+  set_flag(FORCE_POSITION);
+}
+
+Fl_Window::Fl_Window(int W, int H, const char *l)
+// fix common user error of a missing end() with current(0):
+  : Fl_Group((Fl_Group::current(0),0), 0, W, H, l) {
+  cursor_default = FL_CURSOR_DEFAULT;
+  cursor_fg      = FL_BLACK;
+  cursor_bg      = FL_WHITE;
+
+  _Fl_Window();
+  clear_visible();
+}
+
+Fl_Window *Fl_Widget::window() const {
+  for (Fl_Widget *o = parent(); o; o = o->parent())
+    if (o->type() >= FL_WINDOW) return (Fl_Window*)o;
+  return 0;
+}
+/** Gets the x position of the window on the screen */
+int Fl_Window::x_root() const {
+  Fl_Window *p = window();
+  if (p) return p->x_root() + x();
+  return x();
+}
+/** Gets the y position of the window on the screen */
+int Fl_Window::y_root() const {
+  Fl_Window *p = window();
+  if (p) return p->y_root() + y();
+  return y();
+}
+
+void Fl_Window::draw() {
+
+  // The following is similar to Fl_Group::draw(), but ...
+  //  - we draw the box with x=0 and y=0 instead of x() and y()
+  //  - we don't draw a label
+
+  if (damage() & ~FL_DAMAGE_CHILD) {	 // draw the entire thing
+    draw_box(box(),0,0,w(),h(),color()); // draw box with x/y = 0
+  }
+  draw_children();
+
+#ifdef __APPLE_QUARTZ__
+  // on OS X, windows have no frame. To resize a window, we drag the lower right
+  // corner. This code draws a little ribbed triangle for dragging.
+  extern CGContextRef fl_gc;
+  if (fl_gc && !parent() && resizable() && (!size_range_set || minh!=maxh || minw!=maxw)) {
+    int dx = Fl::box_dw(box())-Fl::box_dx(box());
+    int dy = Fl::box_dh(box())-Fl::box_dy(box());
+    if (dx<=0) dx = 1;
+    if (dy<=0) dy = 1;
+    int x1 = w()-dx-1, x2 = x1, y1 = h()-dx-1, y2 = y1;
+    Fl_Color c[4] = {
+      color(),
+      fl_color_average(color(), FL_WHITE, 0.7f),
+      fl_color_average(color(), FL_BLACK, 0.6f),
+      fl_color_average(color(), FL_BLACK, 0.8f),
+    };
+    int i;
+    for (i=dx; i<12; i++) {
+      fl_color(c[i&3]);
+      fl_line(x1--, y1, x2, y2--);
+    }
+  }
+#endif
+
+# if defined(FLTK_USE_CAIRO)
+  Fl::cairo_make_current(this); // checkout if an update is necessary
+# endif
+}
+
+void Fl_Window::label(const char *name) {
+  label(name, iconlabel());
+}
+
+void Fl_Window::copy_label(const char *a) {
+  if (flags() & COPIED_LABEL) {
+    free((void *)label());
+    clear_flag(COPIED_LABEL);
+  }
+  if (a) a = strdup(a);
+  label(a, iconlabel());
+  set_flag(COPIED_LABEL);
+}
+
+
+void Fl_Window::iconlabel(const char *iname) {
+  label(label(), iname);
+}
+
+// the Fl::atclose pointer is provided for back compatibility.  You
+// can now just change the callback for the window instead.
+
+/** Default callback for window widgets. It hides the window and then calls the default widget callback. */
+void Fl::default_atclose(Fl_Window* window, void* v) {
+  window->hide();
+  Fl_Widget::default_callback(window, v); // put on Fl::read_queue()
+}
+/** Back compatibility: default window callback handler \see Fl::set_atclose() */
+void (*Fl::atclose)(Fl_Window*, void*) = default_atclose;
+/** Back compatibility: Sets the default callback v for win to call on close event */
+void Fl_Window::default_callback(Fl_Window* win, void* v) {
+  Fl::atclose(win, v);
+}
+
+/**  Returns the last window that was made current. \see Fl_Window::make_current() */
+Fl_Window *Fl_Window::current() {
+  return current_;
+}
+
+/** Returns the default xclass.
+
+  \see Fl_Window::default_xclass(const char *)
+
+ */
+const char *Fl_Window::default_xclass()
+{
+  if (default_xclass_) {
+    return default_xclass_;
+  } else {
+    return "FLTK";
+  }
+}
+
+/** Sets the default window xclass.
+
+  The default xclass is used for all windows that don't have their
+  own xclass set before show() is called. You can change the default
+  xclass whenever you want, but this only affects windows that are
+  created (and shown) after this call.
+
+  The given string \p xc is copied. You can use a local variable or
+  free the string immediately after this call.
+
+  If you don't call this, the default xclass for all windows will be "FLTK".
+  You can reset the default xclass by specifying NULL for \p xc.
+
+  If you call Fl_Window::xclass(const char *) for any window, then
+  this also sets the default xclass, unless it has been set before.
+
+  \param[in] xc default xclass for all windows subsequently created
+
+  \see Fl_Window::xclass(const char *)
+*/
+void Fl_Window::default_xclass(const char *xc)
+{
+  if (default_xclass_) {
+    free(default_xclass_);
+    default_xclass_ = 0L;
+  }
+  if (xc) {
+    default_xclass_ = strdup(xc);
+  }
+}
+
+/** Sets the xclass for this window.
+
+  A string used to tell the system what type of window this is. Mostly
+  this identifies the picture to draw in the icon. This only works if
+  called \e before calling show().
+
+  <I>Under X</I>, this is turned into a XA_WM_CLASS pair by truncating at
+  the first non-alphanumeric character and capitalizing the first character,
+  and the second one if the first is 'x'.  Thus "foo" turns into "foo, Foo",
+  and "xprog.1" turns into "xprog, XProg".
+
+  <I>Under Microsoft Windows</I>, this string is used as the name of the
+  WNDCLASS structure, though it is not clear if this can have any
+  visible effect.
+
+  \since FLTK 1.3 the passed string is copied. You can use a local
+  variable or free the string immediately after this call. Note that
+  FLTK 1.1 stores the \e pointer without copying the string.
+
+  If the default xclass has not yet been set, this also sets the
+  default xclass for all windows created subsequently.
+
+  \see Fl_Window::default_xclass(const char *)
+*/
+void Fl_Window::xclass(const char *xc) 
+{
+  if (xclass_) {
+    free(xclass_);
+    xclass_ = 0L;
+  }
+  if (xc) {
+    xclass_ = strdup(xc);
+    if (!default_xclass_) {
+      default_xclass(xc);
+    }
+  }
+}
+
+/** Returns the xclass for this window, or a default.
+
+  \see Fl_Window::default_xclass(const char *)
+  \see Fl_Window::xclass(const char *)
+*/
+const char *Fl_Window::xclass() const
+{
+  if (xclass_) {
+    return xclass_;
+  } else {
+    return default_xclass();
+  }
+}
+
+/** Gets the current icon window target dependent data. */
+const void *Fl_Window::icon() const {
+  return icon_;
+}
+
+/** Sets the current icon window target dependent data. */
+void Fl_Window::icon(const void * ic) {
+  icon_ = ic;
+}
+
+
+//
+// End of "$Id: Fl_Window.cxx 8472 2011-02-25 08:44:47Z AlbrechtS $".
+//