include/wx/msw/glcanvas.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/glcanvas.h
   3 // Purpose:     wxGLCanvas, for using OpenGL with wxWidgets 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 #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/palette.h"
  20 #include "wx/scrolwin.h"
  21
  22 #include <windows.h>
  23 #include "wx/msw/winundef.h"
  24
  25 #include <GL/gl.h>
  26
  27 //---------------------------------------------------------------------------
  28 // Constants for attriblist
  29 //---------------------------------------------------------------------------
  30
  31 // The generic GL implementation doesn't support most of these options,
  32 // such as stereo, auxiliary buffers, alpha channel, and accum buffer.
  33 // Other implementations may actually support them.
  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 WXDLLIMPEXP_GL wxGLCanvas;     /* forward reference */
  56
  57 class WXDLLIMPEXP_GL wxGLContext: public wxObject
  58 {
  59 public:
  60     wxGLContext(bool isRGB, wxGLCanvas *win, const wxPalette& palette = wxNullPalette);
  61
  62     wxGLContext( bool isRGB, wxGLCanvas *win,
  63         const wxPalette& WXUNUSED(palette),
  64         const wxGLContext *other /* for sharing display lists */ );
  65
  66     ~wxGLContext();
  67
  68
  69     void SetCurrent();
  70
  71     void SetColour(const wxChar *colour);
  72
  73     void SwapBuffers();
  74
  75
  76     inline wxWindow* GetWindow() const { return m_window; }
  77
  78     inline WXHDC GetHDC() const { return m_hDC; }
  79
  80     inline HGLRC GetGLRC() const { return m_glContext; }
  81
  82 public:
  83     HGLRC            m_glContext;
  84     WXHDC            m_hDC;
  85     wxWindow*        m_window;
  86 };
  87
  88 class WXDLLIMPEXP_GL wxGLCanvas: public wxWindow
  89 {
  90     DECLARE_CLASS(wxGLCanvas)
  91 public:
  92     wxGLCanvas(wxWindow *parent, wxWindowID id = wxID_ANY,
  93         const wxPoint& pos = wxDefaultPosition,
  94         const wxSize& size = wxDefaultSize, long style = 0,
  95         const wxString& name = wxGLCanvasName, int *attribList = 0,
  96         const wxPalette& palette = wxNullPalette);
  97
  98     wxGLCanvas(wxWindow *parent,
  99         const wxGLContext *shared = (wxGLContext *) NULL,
 100         wxWindowID id = wxID_ANY,
 101         const wxPoint& pos = wxDefaultPosition,
 102         const wxSize& size = wxDefaultSize,
 103         long style = 0,
 104         const wxString& name = wxGLCanvasName,
 105         int *attribList = (int *) NULL,
 106         const wxPalette& palette = wxNullPalette);
 107
 108     wxGLCanvas(wxWindow *parent,
 109         const wxGLCanvas *shared = (wxGLCanvas *)NULL,
 110         wxWindowID id = wxID_ANY,
 111         const wxPoint& pos = wxDefaultPosition,
 112         const wxSize& size = wxDefaultSize,
 113         long style = 0,
 114         const wxString& name = wxGLCanvasName,
 115         int *attribList = 0,
 116         const wxPalette& palette = wxNullPalette);
 117
 118     ~wxGLCanvas();
 119
 120     // Replaces wxWindow::Create functionality, since
 121     // we need to use a different window class
 122     bool Create(wxWindow *parent, wxWindowID id,
 123         const wxPoint& pos, const wxSize& size,
 124         long style, const wxString& name);
 125
 126     void SetCurrent();
 127
 128 #ifdef __WXUNIVERSAL__
 129     virtual bool SetCurrent(bool doit) { return wxWindow::SetCurrent(doit); };
 130 #endif
 131
 132     void SetColour(const wxChar *colour);
 133
 134     void SwapBuffers();
 135
 136     void OnSize(wxSizeEvent& event);
 137
 138     void OnQueryNewPalette(wxQueryNewPaletteEvent& event);
 139
 140     void OnPaletteChanged(wxPaletteChangedEvent& event);
 141
 142     inline wxGLContext* GetContext() const { return m_glContext; }
 143
 144     inline WXHDC GetHDC() const { return m_hDC; }
 145
 146     void SetupPixelFormat(int *attribList = (int *) NULL);
 147
 148     void SetupPalette(const wxPalette& palette);
 149
 150     wxPalette CreateDefaultPalette();
 151
 152     inline wxPalette* GetPalette() const { return (wxPalette *) &m_palette; }
 153
 154 protected:
 155     wxGLContext*   m_glContext;  // this is typedef-ed ptr, in fact
 156     wxPalette      m_palette;
 157     WXHDC          m_hDC;
 158
 159     DECLARE_EVENT_TABLE()
 160 };
 161
 162 #endif
 163     // _WX_GLCANVAS_H_
 164