include/wx/motif/glcanvas.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        glcanvas.h
   3 // Purpose:     wxGLCanvas, for using OpenGL with wxWindows 2.0 for Motif.
   4 //              Uses the GLX extension.
   5 // Author:      Julian Smart and Wolfram Gloger
   6 // Modified by:
   7 // Created:     1995, 1999
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) Julian Smart, Wolfram Gloger
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 #ifdef __GNUG__
  14 #pragma interface "glcanvas.h"
  15 #endif
  16
  17 #ifndef _WX_GLCANVAS_H_
  18 #define _WX_GLCANVAS_H_
  19
  20 #include <wx/setup.h>
  21
  22 #if wxUSE_GLCANVAS
  23
  24 #include <wx/gdicmn.h>
  25 #include <wx/palette.h>
  26 #include <wx/scrolwin.h>
  27
  28 #include <GL/glx.h>
  29
  30 enum
  31 {
  32   WX_GL_RGBA=1,          /* use true color palette */
  33   WX_GL_BUFFER_SIZE,     /* bits for buffer if not WX_GL_RGBA */
  34   WX_GL_LEVEL,           /* 0 for main buffer, >0 for overlay, <0 for underlay */
  35   WX_GL_DOUBLEBUFFER,    /* use doublebuffer */
  36   WX_GL_STEREO,          /* use stereoscopic display */
  37   WX_GL_AUX_BUFFERS,     /* number of auxiliary buffers */
  38   WX_GL_MIN_RED,         /* use red buffer with most bits (> MIN_RED bits) */
  39   WX_GL_MIN_GREEN,       /* use green buffer with most bits (> MIN_GREEN bits) */
  40   WX_GL_MIN_BLUE,        /* use blue buffer with most bits (> MIN_BLUE bits) */
  41   WX_GL_MIN_ALPHA,       /* use blue buffer with most bits (> MIN_ALPHA bits) */
  42   WX_GL_DEPTH_SIZE,      /* bits for Z-buffer (0,16,32) */
  43   WX_GL_STENCIL_SIZE,    /* bits for stencil buffer */
  44   WX_GL_MIN_ACCUM_RED,   /* use red accum buffer with most bits (> MIN_ACCUM_RED bits) */
  45   WX_GL_MIN_ACCUM_GREEN, /* use green buffer with most bits (> MIN_ACCUM_GREEN bits) */
  46   WX_GL_MIN_ACCUM_BLUE,  /* use blue buffer with most bits (> MIN_ACCUM_BLUE bits) */
  47   WX_GL_MIN_ACCUM_ALPHA  /* use blue buffer with most bits (> MIN_ACCUM_ALPHA bits) */
  48 };
  49
  50 //---------------------------------------------------------------------------
  51 // classes
  52 //---------------------------------------------------------------------------
  53
  54
  55 class WXDLLEXPORT wxGLContext: public wxObject
  56 {
  57 public:
  58     wxGLContext( bool isRGB, wxWindow *win,
  59                  const wxPalette& palette = wxNullPalette );
  60     wxGLContext( bool WXUNUSED(isRGB), wxWindow *win,
  61                  const wxPalette& WXUNUSED(palette),
  62                  const wxGLContext *other  /* for sharing display lists */
  63                );
  64     ~wxGLContext();
  65
  66     void SetCurrent();
  67     void SetColour(const char *colour);
  68     void SwapBuffers();
  69
  70     void SetupPixelFormat();
  71     void SetupPalette(const wxPalette& palette);
  72     wxPalette CreateDefaultPalette();
  73
  74     inline wxPalette* GetPalette() const { return (wxPalette*) & m_palette; }
  75     inline wxWindow* GetWindow() const { return m_window; }
  76     // inline GtkWidget* GetWidget() const { return m_widget; }
  77     inline GLXContext GetContext() const { return m_glContext; }
  78
  79 public:
  80    GLXContext       m_glContext;
  81
  82    // GtkWidget       *m_widget;
  83    wxPalette        m_palette;
  84    wxWindow*        m_window;
  85
  86     DECLARE_CLASS(wxGLContext)
  87 };
  88
  89
  90 class WXDLLEXPORT wxGLCanvas: public wxScrolledWindow
  91 {
  92 public:
  93    inline wxGLCanvas() {
  94       m_glContext = (wxGLContext*) NULL;
  95       m_sharedContext = (wxGLContext*) NULL;
  96       // m_glWidget = (GtkWidget*) NULL;
  97       m_vi = (void*) NULL;
  98       // m_exposed = FALSE;
  99    }
 100    wxGLCanvas( wxWindow *parent, wxWindowID id = -1,
 101         const wxPoint& pos = wxDefaultPosition,
 102         const wxSize& size = wxDefaultSize,
 103         long style = 0, const wxString& name = "GLCanvas",
 104         int *attribList = (int*) NULL,
 105         const wxPalette& palette = wxNullPalette );
 106    wxGLCanvas( wxWindow *parent, const wxGLContext *shared = (wxGLContext *)NULL,
 107         wxWindowID id = -1,
 108         const wxPoint& pos = wxDefaultPosition,
 109         const wxSize& size = wxDefaultSize,
 110         long style = 0, const wxString& name = "GLCanvas",
 111         int *attribList = (int*) NULL,
 112         const wxPalette& palette = wxNullPalette );
 113    wxGLCanvas( wxWindow *parent, const wxGLCanvas *shared = (wxGLCanvas *)NULL,
 114         wxWindowID id = -1,
 115         const wxPoint& pos = wxDefaultPosition,
 116         const wxSize& size = wxDefaultSize,
 117         long style = 0, const wxString& name = "GLCanvas",
 118         int *attribList = (int*) NULL,
 119         const wxPalette& palette = wxNullPalette );
 120
 121    bool Create( wxWindow *parent,
 122         const wxGLContext *shared = (wxGLContext*)NULL,
 123         const wxGLCanvas *shared_context_of = (wxGLCanvas*)NULL,
 124         wxWindowID id = -1,
 125         const wxPoint& pos = wxDefaultPosition,
 126         const wxSize& size = wxDefaultSize,
 127         long style = 0, const wxString& name = "GLCanvas",
 128         int *attribList = (int*) NULL,
 129         const wxPalette& palette = wxNullPalette );
 130
 131    ~wxGLCanvas();
 132
 133    void SetCurrent();
 134    void SetColour(const char *colour);
 135    void SwapBuffers();
 136
 137    // void OnSize(wxSizeEvent& event);
 138
 139    // void OnInternalIdle();
 140
 141    inline wxGLContext* GetContext() const { return m_glContext; }
 142
 143  // implementation
 144
 145     wxGLContext      *m_glContext,
 146                      *m_sharedContext;
 147     wxGLCanvas       *m_sharedContextOf;
 148     void             *m_vi;
 149     // GtkWidget        *m_glWidget;
 150     // bool              m_exposed;
 151
 152     DECLARE_EVENT_TABLE()
 153     DECLARE_CLASS(wxGLCanvas)
 154
 155 };
 156
 157 #endif
 158   //  wxUSE_GLCANVAS
 159
 160 #endif
 161   // _WX_GLCANVAS_H_