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[wxWidgets.git] / include / wx / mac / glcanvas.h

/////////////////////////////////////////////////////////////////////////////
// Name:        glcanvas.h
// Purpose:     wxGLCanvas, for using OpenGL with wxWindows under Macintosh
// Author:      Stefan Csomor
// Modified by:
// Created:     1998-01-01
// RCS-ID:      $Id$
// Copyright:   (c) Stefan Csomor
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#  pragma interface "glcanvas.h"
#endif

#ifndef _WX_GLCANVAS_H_
#define _WX_GLCANVAS_H_

#include "wx/setup.h"

#if wxUSE_GLCANVAS

#include "wx/palette.h"
#include "wx/scrolwin.h"
#include "wx/app.h"

#ifdef __DARWIN__
#  include <OpenGL/gl.h>
#  include <AGL/agl.h>
#else
#  include <gl.h>
#  include <agl.h>
#endif

//---------------------------------------------------------------------------
// Constants for attriblist
//---------------------------------------------------------------------------

enum
{
  WX_GL_RGBA=1,          /* use true color palette */
  WX_GL_BUFFER_SIZE,     /* bits for buffer if not WX_GL_RGBA */
  WX_GL_LEVEL,           /* 0 for main buffer, >0 for overlay, <0 for underlay */
  WX_GL_DOUBLEBUFFER,    /* use doublebuffer */
  WX_GL_STEREO,          /* use stereoscopic display */
  WX_GL_AUX_BUFFERS,     /* number of auxiliary buffers */
  WX_GL_MIN_RED,         /* use red buffer with most bits (> MIN_RED bits) */
  WX_GL_MIN_GREEN,       /* use green buffer with most bits (> MIN_GREEN bits) */
  WX_GL_MIN_BLUE,        /* use blue buffer with most bits (> MIN_BLUE bits) */
  WX_GL_MIN_ALPHA,       /* use blue buffer with most bits (> MIN_ALPHA bits) */
  WX_GL_DEPTH_SIZE,      /* bits for Z-buffer (0,16,32) */
  WX_GL_STENCIL_SIZE,    /* bits for stencil buffer */
  WX_GL_MIN_ACCUM_RED,   /* use red accum buffer with most bits (> MIN_ACCUM_RED bits) */
  WX_GL_MIN_ACCUM_GREEN, /* use green buffer with most bits (> MIN_ACCUM_GREEN bits) */
  WX_GL_MIN_ACCUM_BLUE,  /* use blue buffer with most bits (> MIN_ACCUM_BLUE bits) */
  WX_GL_MIN_ACCUM_ALPHA  /* use blue buffer with most bits (> MIN_ACCUM_ALPHA bits) */
};

class WXDLLEXPORT wxGLCanvas;     /* forward reference */

class WXDLLEXPORT wxGLContext: public wxObject
{
public:
   wxGLContext(AGLPixelFormat fmt, wxGLCanvas *win, 
               const wxPalette& WXUNUSED(palette),
               const wxGLContext *other        /* for sharing display lists */
    );
   ~wxGLContext();

   void SetCurrent();
   void Update();  // must be called after window drag/grows/zoom or clut change
   void SetColour(const wxChar *colour);
   void SwapBuffers();


   inline wxWindow* GetWindow() const { return m_window; }
   inline AGLDrawable GetDrawable() const { return m_drawable; }

public:
   AGLContext       m_glContext;
   AGLDrawable      m_drawable;
   wxWindow*        m_window;
};

class WXDLLEXPORT wxGLCanvas: public wxWindow
{
   DECLARE_CLASS(wxGLCanvas)
 public:
   wxGLCanvas(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
        const wxSize& size = wxDefaultSize, long style = 0,
        const wxString& name = wxT("GLCanvas") , int *attribList = 0, const wxPalette& palette = wxNullPalette);
   wxGLCanvas( wxWindow *parent, const wxGLContext *shared = (wxGLContext *)NULL,
        wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
        const wxSize& size = wxDefaultSize, long style = 0, const wxString& name = wxT("GLCanvas"), 
          int *attribList = (int*) NULL, const wxPalette& palette = wxNullPalette );

   wxGLCanvas( wxWindow *parent, const wxGLCanvas *shared = (wxGLCanvas *)NULL, wxWindowID id = -1,
        const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = 0, 
        const wxString& name = wxT("GLCanvas"), int *attribList = 0, const wxPalette& palette = wxNullPalette );

   ~wxGLCanvas();

   bool Create(wxWindow *parent, const wxGLContext *shared, wxWindowID id,
               const wxPoint& pos, const wxSize& size, long style, const wxString& name,
           int *attribList, const wxPalette& palette);

   void SetCurrent();
   void SetColour(const wxChar *colour);
   void SwapBuffers();
   void UpdateContext();
   void SetViewport();
   virtual bool Show(bool show = TRUE) ;
   
   // Unlike some other platforms, this must get called if you override it.
   // It sets the viewport correctly and update the context.
   // You shouldn't call glViewport yourself either (use SetViewport if you must reset it.)
   void OnSize(wxSizeEvent& event);
   
     virtual void MacSuperChangedPosition() ;
     virtual void MacTopLevelWindowChangedPosition() ;
     virtual void MacSuperShown( bool show ) ;

     void MacUpdateView() ;

   inline wxGLContext* GetContext() const { return m_glContext; }

protected:
    wxGLContext*   m_glContext;
	bool m_macCanvasIsShown ;
DECLARE_EVENT_TABLE()
};

#endif // wxUSE_GLCANVAS
#endif // _WX_GLCANVAS_H_