include/wx/x11/glcanvas.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/x11/glcanvas.h
   3 // Purpose:     wxGLCanvas, for using OpenGL with wxWidgets 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 #ifndef _WX_GLCANVAS_H_
  14 #define _WX_GLCANVAS_H_
  15
  16 #include "wx/defs.h"
  17
  18 #if wxUSE_GLCANVAS
  19
  20 #include "wx/gdicmn.h"
  21 #include "wx/palette.h"
  22 #include "wx/scrolwin.h"
  23
  24 #include <GL/glx.h>
  25
  26 enum
  27 {
  28     WX_GL_RGBA=1,          /* use true color palette */
  29     WX_GL_BUFFER_SIZE,     /* bits for buffer if not WX_GL_RGBA */
  30     WX_GL_LEVEL,           /* 0 for main buffer, >0 for overlay, <0 for underlay */
  31     WX_GL_DOUBLEBUFFER,    /* use doublebuffer */
  32     WX_GL_STEREO,          /* use stereoscopic display */
  33     WX_GL_AUX_BUFFERS,     /* number of auxiliary buffers */
  34     WX_GL_MIN_RED,         /* use red buffer with most bits (> MIN_RED bits) */
  35     WX_GL_MIN_GREEN,       /* use green buffer with most bits (> MIN_GREEN bits) */
  36     WX_GL_MIN_BLUE,        /* use blue buffer with most bits (> MIN_BLUE bits) */
  37     WX_GL_MIN_ALPHA,       /* use blue buffer with most bits (> MIN_ALPHA bits) */
  38     WX_GL_DEPTH_SIZE,      /* bits for Z-buffer (0,16,32) */
  39     WX_GL_STENCIL_SIZE,    /* bits for stencil buffer */
  40     WX_GL_MIN_ACCUM_RED,   /* use red accum buffer with most bits (> MIN_ACCUM_RED bits) */
  41     WX_GL_MIN_ACCUM_GREEN, /* use green buffer with most bits (> MIN_ACCUM_GREEN bits) */
  42     WX_GL_MIN_ACCUM_BLUE,  /* use blue buffer with most bits (> MIN_ACCUM_BLUE bits) */
  43     WX_GL_MIN_ACCUM_ALPHA  /* use blue buffer with most bits (> MIN_ACCUM_ALPHA bits) */
  44 };
  45
  46 //---------------------------------------------------------------------------
  47 // classes
  48 //---------------------------------------------------------------------------
  49
  50
  51 class WXDLLEXPORT wxGLContext: public wxObject
  52 {
  53 public:
  54     wxGLContext( bool isRGB, wxWindow *win,
  55         const wxPalette& palette = wxNullPalette );
  56     wxGLContext( bool WXUNUSED(isRGB), wxWindow *win,
  57         const wxPalette& WXUNUSED(palette),
  58         const wxGLContext *other  /* for sharing display lists */
  59         );
  60     virtual ~wxGLContext();
  61
  62     void SetCurrent();
  63     void SetColour(const wxChar *colour);
  64     void SwapBuffers();
  65
  66     void SetupPixelFormat();
  67     void SetupPalette(const wxPalette& palette);
  68     wxPalette CreateDefaultPalette();
  69
  70     inline wxPalette* GetPalette() const { return (wxPalette*) & m_palette; }
  71     inline wxWindow* GetWindow() const { return m_window; }
  72     // inline GtkWidget* GetWidget() const { return m_widget; }
  73     inline GLXContext GetContext() const { return m_glContext; }
  74
  75 public:
  76     GLXContext       m_glContext;
  77
  78     // GtkWidget       *m_widget;
  79     wxPalette        m_palette;
  80     wxWindow*        m_window;
  81
  82     DECLARE_CLASS(wxGLContext)
  83 };
  84
  85
  86 class WXDLLEXPORT wxGLCanvas: public wxScrolledWindow
  87 {
  88 public:
  89     inline wxGLCanvas() {
  90         m_glContext = (wxGLContext*) NULL;
  91         m_sharedContext = (wxGLContext*) NULL;
  92         // m_glWidget = (GtkWidget*) NULL;
  93         m_vi = (void*) NULL;
  94         // m_exposed = FALSE;
  95     }
  96     wxGLCanvas( wxWindow *parent, wxWindowID id = wxID_ANY,
  97         const wxPoint& pos = wxDefaultPosition,
  98         const wxSize& size = wxDefaultSize,
  99         long style = 0, const wxString& name = wxT("GLCanvas"),
 100         int *attribList = (int*) NULL,
 101         const wxPalette& palette = wxNullPalette );
 102     wxGLCanvas( wxWindow *parent, const wxGLContext *shared,
 103         wxWindowID id = wxID_ANY,
 104         const wxPoint& pos = wxDefaultPosition,
 105         const wxSize& size = wxDefaultSize,
 106         long style = 0, const wxString& name = wxT("GLCanvas"),
 107         int *attribList = (int*) NULL,
 108         const wxPalette& palette = wxNullPalette );
 109     wxGLCanvas( wxWindow *parent, const wxGLCanvas *shared,
 110         wxWindowID id = wxID_ANY,
 111         const wxPoint& pos = wxDefaultPosition,
 112         const wxSize& size = wxDefaultSize,
 113         long style = 0, const wxString& name = wxT("GLCanvas"),
 114         int *attribList = (int*) NULL,
 115         const wxPalette& palette = wxNullPalette );
 116
 117     bool Create( wxWindow *parent,
 118         const wxGLContext *shared = (wxGLContext*)NULL,
 119         const wxGLCanvas *shared_context_of = (wxGLCanvas*)NULL,
 120         wxWindowID id = wxID_ANY,
 121         const wxPoint& pos = wxDefaultPosition,
 122         const wxSize& size = wxDefaultSize,
 123         long style = 0, const wxString& name = wxT("GLCanvas"),
 124         int *attribList = (int*) NULL,
 125         const wxPalette& palette = wxNullPalette );
 126
 127     virtual ~wxGLCanvas();
 128
 129     void SetCurrent();
 130     void SetColour(const wxChar *colour);
 131     void SwapBuffers();
 132
 133     // void OnSize(wxSizeEvent& event);
 134
 135     // void OnInternalIdle();
 136
 137     inline wxGLContext* GetContext() const { return m_glContext; }
 138
 139     // implementation
 140
 141     wxGLContext      *m_glContext,
 142         *m_sharedContext;
 143     wxGLCanvas       *m_sharedContextOf;
 144     void             *m_vi;
 145     // GtkWidget        *m_glWidget;
 146     // bool              m_exposed;
 147
 148     DECLARE_EVENT_TABLE()
 149         DECLARE_CLASS(wxGLCanvas)
 150
 151 };
 152
 153 #endif
 154 //  wxUSE_GLCANVAS
 155
 156 #endif
 157 // _WX_GLCANVAS_H_