include/wx/mac/carbon/glcanvas.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        glcanvas.h
   3 // Purpose:     wxGLCanvas, for using OpenGL with wxWidgets under Macintosh
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_GLCANVAS_H_
  13 #define _WX_GLCANVAS_H_
  14
  15 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16 #  pragma interface "glcanvas.h"
  17 #endif
  18
  19 #include "wx/setup.h"
  20
  21 #if wxUSE_GLCANVAS
  22
  23 #include "wx/palette.h"
  24 #include "wx/scrolwin.h"
  25 #include "wx/app.h"
  26
  27 #ifdef __DARWIN__
  28 #  include <OpenGL/gl.h>
  29 #  include <AGL/agl.h>
  30 #else
  31 #  include <gl.h>
  32 #  include <agl.h>
  33 #endif
  34
  35 //---------------------------------------------------------------------------
  36 // Constants for attriblist
  37 //---------------------------------------------------------------------------
  38
  39 enum
  40 {
  41   WX_GL_RGBA=1,          /* use true color palette */
  42   WX_GL_BUFFER_SIZE,     /* bits for buffer if not WX_GL_RGBA */
  43   WX_GL_LEVEL,           /* 0 for main buffer, >0 for overlay, <0 for underlay */
  44   WX_GL_DOUBLEBUFFER,    /* use doublebuffer */
  45   WX_GL_STEREO,          /* use stereoscopic display */
  46   WX_GL_AUX_BUFFERS,     /* number of auxiliary buffers */
  47   WX_GL_MIN_RED,         /* use red buffer with most bits (> MIN_RED bits) */
  48   WX_GL_MIN_GREEN,       /* use green buffer with most bits (> MIN_GREEN bits) */
  49   WX_GL_MIN_BLUE,        /* use blue buffer with most bits (> MIN_BLUE bits) */
  50   WX_GL_MIN_ALPHA,       /* use blue buffer with most bits (> MIN_ALPHA bits) */
  51   WX_GL_DEPTH_SIZE,      /* bits for Z-buffer (0,16,32) */
  52   WX_GL_STENCIL_SIZE,    /* bits for stencil buffer */
  53   WX_GL_MIN_ACCUM_RED,   /* use red accum buffer with most bits (> MIN_ACCUM_RED bits) */
  54   WX_GL_MIN_ACCUM_GREEN, /* use green buffer with most bits (> MIN_ACCUM_GREEN bits) */
  55   WX_GL_MIN_ACCUM_BLUE,  /* use blue buffer with most bits (> MIN_ACCUM_BLUE bits) */
  56   WX_GL_MIN_ACCUM_ALPHA  /* use blue buffer with most bits (> MIN_ACCUM_ALPHA bits) */
  57 };
  58
  59 class WXDLLEXPORT wxGLCanvas;     /* forward reference */
  60
  61 class WXDLLEXPORT wxGLContext: public wxObject
  62 {
  63 public:
  64    wxGLContext(AGLPixelFormat fmt, wxGLCanvas *win,
  65                const wxPalette& WXUNUSED(palette),
  66                const wxGLContext *other        /* for sharing display lists */
  67     );
  68    ~wxGLContext();
  69
  70    void SetCurrent();
  71    void Update();  // must be called after window drag/grows/zoom or clut change
  72    void SetColour(const wxChar *colour);
  73    void SwapBuffers();
  74
  75
  76    inline wxWindow* GetWindow() const { return m_window; }
  77    inline AGLDrawable GetDrawable() const { return m_drawable; }
  78
  79 public:
  80    AGLContext       m_glContext;
  81    AGLDrawable      m_drawable;
  82    wxWindow*        m_window;
  83 };
  84
  85 class WXDLLEXPORT wxGLCanvas: public wxWindow
  86 {
  87    DECLARE_CLASS(wxGLCanvas)
  88  public:
  89    wxGLCanvas(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
  90         const wxSize& size = wxDefaultSize, long style = 0,
  91         const wxString& name = wxT("GLCanvas") , int *attribList = 0, const wxPalette& palette = wxNullPalette);
  92    wxGLCanvas( wxWindow *parent, const wxGLContext *shared = (wxGLContext *)NULL,
  93         wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
  94         const wxSize& size = wxDefaultSize, long style = 0, const wxString& name = wxT("GLCanvas"),
  95           int *attribList = (int*) NULL, const wxPalette& palette = wxNullPalette );
  96
  97    wxGLCanvas( wxWindow *parent, const wxGLCanvas *shared = (wxGLCanvas *)NULL, wxWindowID id = -1,
  98         const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = 0,
  99         const wxString& name = wxT("GLCanvas"), int *attribList = 0, const wxPalette& palette = wxNullPalette );
 100
 101    ~wxGLCanvas();
 102
 103    bool Create(wxWindow *parent, const wxGLContext *shared, wxWindowID id,
 104                const wxPoint& pos, const wxSize& size, long style, const wxString& name,
 105            int *attribList, const wxPalette& palette);
 106
 107    void SetCurrent();
 108    void SetColour(const wxChar *colour);
 109    void SwapBuffers();
 110    void UpdateContext();
 111    void SetViewport();
 112    virtual bool Show(bool show = TRUE) ;
 113
 114    // Unlike some other platforms, this must get called if you override it.
 115    // It sets the viewport correctly and update the context.
 116    // You shouldn't call glViewport yourself either (use SetViewport if you must reset it.)
 117    void OnSize(wxSizeEvent& event);
 118
 119      virtual void MacSuperChangedPosition() ;
 120      virtual void MacTopLevelWindowChangedPosition() ;
 121     virtual void         MacVisibilityChanged() ;
 122
 123      void MacUpdateView() ;
 124
 125    inline wxGLContext* GetContext() const { return m_glContext; }
 126
 127 protected:
 128     wxGLContext*   m_glContext;
 129         bool m_macCanvasIsShown ;
 130 DECLARE_EVENT_TABLE()
 131 };
 132
 133 #endif // wxUSE_GLCANVAS
 134 #endif // _WX_GLCANVAS_H_