include/wx/mac/classic/glcanvas.h

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