wxPython/contrib/glcanvas/msw/myglcanvas.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        glcanvas.h
   3 // Purpose:     wxGLCanvas, for using OpenGL with wxWindows under Windows
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   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 #undef wxUSE_GLCANVAS
  21 #define wxUSE_GLCANVAS 1
  22
  23 #include <wx/palette.h>
  24 #include <wx/scrolwin.h>
  25
  26 #include <windows.h>
  27 #include "wx/msw/winundef.h"
  28
  29 #include <GL/gl.h>
  30
  31 //---------------------------------------------------------------------------
  32 // Constants for attriblist
  33 //---------------------------------------------------------------------------
  34
  35 // The generic GL implementation doesn't support most of these options,
  36 // such as stereo, auxiliary buffers, alpha channel, and accum buffer.
  37 // Other implementations may actually support them.
  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 wxGLCanvas;     /* forward reference */
  60
  61 class wxGLContext: public wxObject
  62 {
  63 public:
  64    wxGLContext(bool isRGB, wxGLCanvas *win, const wxPalette& palette = wxNullPalette);
  65    wxGLContext(
  66                bool isRGB, wxGLCanvas *win,
  67                const wxPalette& WXUNUSED(palette),
  68                const wxGLContext *other        /* for sharing display lists */
  69     );
  70    ~wxGLContext();
  71
  72    void SetCurrent();
  73    void SetColour(const wxChar *colour);
  74    void SwapBuffers();
  75
  76
  77    inline wxWindow* GetWindow() const { return m_window; }
  78    inline WXHDC GetHDC() const { return m_hDC; }
  79    inline HGLRC GetGLRC() const { return m_glContext; }
  80
  81 public:
  82    HGLRC            m_glContext;
  83    WXHDC            m_hDC;
  84    wxWindow*        m_window;
  85 };
  86
  87
  88 extern const wxChar* wxGLCanvasName;
  89
  90
  91 class wxGLCanvas: public wxWindow
  92 {
  93    DECLARE_CLASS(wxGLCanvas)
  94  public:
  95    wxGLCanvas(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
  96         const wxSize& size = wxDefaultSize, long style = 0,
  97         const wxString& name = wxGLCanvasName, int *attribList = 0, const wxPalette& palette = wxNullPalette);
  98    wxGLCanvas( wxWindow *parent, const wxGLContext *shared = (wxGLContext *)NULL,
  99         wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
 100         const wxSize& size = wxDefaultSize, long style = 0, const wxString&
 101         name = wxGLCanvasName,
 102         int *attribList = (int*) NULL, const wxPalette& palette = wxNullPalette );
 103
 104    wxGLCanvas( wxWindow *parent, const wxGLCanvas *shared = (wxGLCanvas *)NULL, wxWindowID id = -1,
 105         const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = 0,
 106         const wxString& name = wxGLCanvasName, int *attribList = 0, const wxPalette& palette = wxNullPalette );
 107
 108    ~wxGLCanvas();
 109
 110    // Replaces wxWindow::Create functionality, since we need to use a different window class
 111    bool Create(wxWindow *parent, wxWindowID id,
 112           const wxPoint& pos, const wxSize& size, long style, const wxString& name);
 113
 114    void SetCurrent();
 115    void SetColour(const wxChar *colour);
 116    void SwapBuffers();
 117
 118    void OnSize(wxSizeEvent& event);
 119
 120    void OnQueryNewPalette(wxQueryNewPaletteEvent& event);
 121    void OnPaletteChanged(wxPaletteChangedEvent& event);
 122
 123    inline wxGLContext* GetContext() const { return m_glContext; }
 124
 125    inline WXHDC GetHDC() const { return m_hDC; }
 126    void SetupPixelFormat(int *attribList = (int*) NULL);
 127    void SetupPalette(const wxPalette& palette);
 128    wxPalette CreateDefaultPalette();
 129
 130    inline wxPalette* GetPalette() const { return (wxPalette*) & m_palette; }
 131
 132 protected:
 133     wxGLContext*   m_glContext;  // this is typedef-ed ptr, in fact
 134     wxPalette      m_palette;
 135     WXHDC          m_hDC;
 136
 137     DECLARE_EVENT_TABLE()
 138 };
 139
 140
 141
 142 class wxGLApp : public wxApp
 143 {
 144 public:
 145     wxGLApp() : wxApp() { }
 146     virtual ~wxGLApp();
 147
 148     // use this in the constructor of the user-derived wxGLApp class to
 149     // determine if an OpenGL rendering context with these attributes
 150     // is available - returns TRUE if so, FALSE if not.
 151     bool InitGLVisual(int *attribList);
 152
 153 private:
 154     DECLARE_DYNAMIC_CLASS(wxGLApp)
 155 };
 156
 157
 158
 159
 160 #endif
 161     // _WX_GLCANVAS_H_
 162