include/wx/mac/glcanvas.h

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