1 files changed, 108 insertions, 0 deletions
diff --git a/fltk/fltk/GlWindow.h b/fltk/fltk/GlWindow.h
new file mode 100644
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+++ b/fltk/fltk/GlWindow.h
@@ -0,0 +1,108 @@
+//
+// "$Id: GlWindow.h 5892 2007-06-08 18:15:37Z spitzak $"
+//
+// OpenGL window. You must subclass this and implement draw() if
+// you want this to work.
+//
+// Copyright 1998-2006 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 to "fltk-bugs@fltk.org".
+
+#ifndef fltk_GlWindow_h
+#define fltk_GlWindow_h
+
+#include "Window.h"
+
+namespace fltk {
+
+#ifndef GLContext // you can define this to the correct type if wanted
+typedef void* GLContext; //!< Actually a GLXContext or HGLDC
+#endif
+
+class GlChoice; // structure to hold result of glXChooseVisual
+class GlOverlay; // used by X version for the overlay
+
+enum {
+  NO_AUTO_SWAP = 1024,
+  NO_ERASE_OVERLAY = 2048
+};
+
+class FL_GL_API GlWindow : public Window {
+
+public:
+
+  void create();
+  void flush();
+  void destroy();
+  void layout();
+
+  char valid() const {return valid_;}
+  void valid(char i) {valid_ = i;}
+  void invalidate();
+
+  int mode() const {return mode_;}
+  bool mode(int a);
+  static bool can_do(int);
+  bool can_do() const {return can_do(mode_);}
+
+  GLContext context() const {return context_;}
+  // this wrapper is so c++mangled name does not depend on GLContext type:
+  void context(GLContext v, bool destroy_flag = false) {_context(v,destroy_flag);}
+  void make_current();
+  void swap_buffers();
+  void ortho();
+
+  bool can_do_overlay();
+  void redraw_overlay();
+  void hide_overlay();
+  void make_overlay_current();
+
+  ~GlWindow();
+  GlWindow(int W, int H, const char *l=0) : Window(W,H,l) {init();}
+  GlWindow(int X, int Y, int W, int H, const char *l=0)
+    : Window(X,Y,W,H,l) {init();}
+
+  virtual void draw() = 0;
+  virtual void draw_overlay();
+
+  virtual int handle( int event );
+
+private:
+
+  int mode_;
+  GlChoice *gl_choice;
+  GLContext context_;
+  void _context(void*, bool destroy_flag);
+  char valid_;
+  char damage1_; // damage() of back buffer
+  void init();
+
+  void *overlay;
+  void make_overlay();
+  friend class GlOverlay;
+
+  void draw_swap();
+};
+
+}
+
+#endif
+
+//
+// End of "$Id: GlWindow.h 5892 2007-06-08 18:15:37Z spitzak $".
+//