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_hotspot.cxx b/common/fltk/src/Fl_Window_hotspot.cxx
new file mode 100644
index 0000000..92a298f
--- /dev/null
+++ b/common/fltk/src/Fl_Window_hotspot.cxx
@@ -0,0 +1,100 @@
+//
+// "$Id: Fl_Window_hotspot.cxx 7903 2010-11-28 21:06:39Z matt $"
+//
+// Common hotspot routines 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
+//
+
+#include <FL/Fl.H>
+#include <FL/Fl_Window.H>
+#include <FL/x.H>
+#include <stdio.h>
+
+void Fl_Window::hotspot(int X, int Y, int offscreen) {
+  int mx,my;
+
+  // Update the screen position based on the mouse position.
+  Fl::get_mouse(mx,my);
+  X = mx-X; Y = my-Y;
+
+  // If offscreen is 0 (the default), make sure that the window
+  // stays on the screen, if possible.
+  if (!offscreen) {
+    int scr_x, scr_y, scr_w, scr_h;
+    Fl::screen_xywh(scr_x, scr_y, scr_w, scr_h);
+
+    int top = 0;
+    int left = 0;
+    int right = 0;
+    int bottom = 0;
+
+    if (border()) {
+#ifdef WIN32
+      if (size_range_set && (maxw != minw || maxh != minh)) {
+        left = right = GetSystemMetrics(SM_CXSIZEFRAME);
+        top = bottom = GetSystemMetrics(SM_CYSIZEFRAME);
+      } else {
+        left = right = GetSystemMetrics(SM_CXFIXEDFRAME); 
+        top = bottom = GetSystemMetrics(SM_CYFIXEDFRAME);
+      }
+      top += GetSystemMetrics(SM_CYCAPTION);
+#elif defined(__APPLE__)
+      top = 24;
+      left = 2;
+      right = 2;
+      bottom = 2;
+#else
+      // Ensure border is on screen; these values are generic enough
+      // to work with many window managers, and are based on KDE defaults.
+      top = 20;
+      left = 4;
+      right = 4;
+      bottom = 8;
+#endif
+    }
+    // now insure contents are on-screen (more important than border):
+    if (X+w()+right > scr_w-scr_x) X = scr_w-scr_x-right-w();
+    if (X-left < scr_x) X = left;
+    if (Y+h()+bottom > scr_h-scr_y) Y = scr_h-scr_y-bottom-h();
+    if (Y-top < scr_y) Y = top;
+    // make sure that we will force this position
+    if (X==x()) x(X-1);
+  }
+
+  position(X,Y);
+}
+
+void Fl_Window::hotspot(const Fl_Widget *o, int offscreen) {
+  int X = o->w()/2;
+  int Y = o->h()/2;
+  while (o != this && o) {
+    X += o->x(); Y += o->y();
+    o = o->window();
+  }
+  hotspot(X,Y,offscreen);
+}
+
+
+//
+// End of "$Id: Fl_Window_hotspot.cxx 7903 2010-11-28 21:06:39Z matt $".
+//