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//
// "$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 $".
//
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