Committed William Osborne's wxPalmOS port

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29996 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/palmos/glcanvas.h

@@ -0,0 +1,164 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/palmos/glcanvas.h
+// Purpose:     wxGLCanvas, for using OpenGL with wxWidgets under Palm OS
+// Author:      William Osborne
+// Modified by:
+// Created:     10/13/04
+// RCS-ID:      $Id: 
+// Copyright:   (c) William Osborne
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
+#pragma interface "glcanvas.h"
+#endif
+
+#ifndef _WX_GLCANVAS_H_
+#define _WX_GLCANVAS_H_
+
+#include "wx/palette.h"
+#include "wx/scrolwin.h"
+
+#include <windows.h>
+#include "wx/msw/winundef.h"
+
+#include <GL/gl.h>
+
+//---------------------------------------------------------------------------
+// Constants for attriblist
+//---------------------------------------------------------------------------
+
+// The generic GL implementation doesn't support most of these options,
+// such as stereo, auxiliary buffers, alpha channel, and accum buffer.
+// Other implementations may actually support them.
+
+enum
+{
+    WX_GL_RGBA=1,          /* use true color palette */
+    WX_GL_BUFFER_SIZE,     /* bits for buffer if not WX_GL_RGBA */
+    WX_GL_LEVEL,           /* 0 for main buffer, >0 for overlay, <0 for underlay */
+    WX_GL_DOUBLEBUFFER,    /* use doublebuffer */
+    WX_GL_STEREO,          /* use stereoscopic display */
+    WX_GL_AUX_BUFFERS,     /* number of auxiliary buffers */
+    WX_GL_MIN_RED,         /* use red buffer with most bits (> MIN_RED bits) */
+    WX_GL_MIN_GREEN,       /* use green buffer with most bits (> MIN_GREEN bits) */
+    WX_GL_MIN_BLUE,        /* use blue buffer with most bits (> MIN_BLUE bits) */
+    WX_GL_MIN_ALPHA,       /* use blue buffer with most bits (> MIN_ALPHA bits) */
+    WX_GL_DEPTH_SIZE,      /* bits for Z-buffer (0,16,32) */
+    WX_GL_STENCIL_SIZE,    /* bits for stencil buffer */
+    WX_GL_MIN_ACCUM_RED,   /* use red accum buffer with most bits (> MIN_ACCUM_RED bits) */
+    WX_GL_MIN_ACCUM_GREEN, /* use green buffer with most bits (> MIN_ACCUM_GREEN bits) */
+    WX_GL_MIN_ACCUM_BLUE,  /* use blue buffer with most bits (> MIN_ACCUM_BLUE bits) */
+    WX_GL_MIN_ACCUM_ALPHA  /* use blue buffer with most bits (> MIN_ACCUM_ALPHA bits) */
+};
+
+class WXDLLIMPEXP_GL wxGLCanvas;     /* forward reference */
+
+class WXDLLIMPEXP_GL wxGLContext: public wxObject
+{
+public:
+    wxGLContext(bool isRGB, wxGLCanvas *win, const wxPalette& palette = wxNullPalette);
+
+    wxGLContext( bool isRGB, wxGLCanvas *win,
+        const wxPalette& WXUNUSED(palette),
+        const wxGLContext *other /* for sharing display lists */ );
+
+    ~wxGLContext();
+
+
+    void SetCurrent();
+
+    void SetColour(const wxChar *colour);
+
+    void SwapBuffers();
+
+
+    inline wxWindow* GetWindow() const { return m_window; }
+
+    inline WXHDC GetHDC() const { return m_hDC; }
+
+    inline HGLRC GetGLRC() const { return m_glContext; }
+
+public:
+    HGLRC            m_glContext;
+    WXHDC            m_hDC;
+    wxWindow*        m_window;
+};
+
+class WXDLLIMPEXP_GL wxGLCanvas: public wxWindow
+{
+    DECLARE_CLASS(wxGLCanvas)
+public:
+    wxGLCanvas(wxWindow *parent, wxWindowID id = wxID_ANY,
+        const wxPoint& pos = wxDefaultPosition,
+        const wxSize& size = wxDefaultSize, long style = 0,
+        const wxString& name = wxGLCanvasName, int *attribList = 0,
+        const wxPalette& palette = wxNullPalette);
+
+    wxGLCanvas(wxWindow *parent,
+        const wxGLContext *shared = (wxGLContext *) NULL,
+        wxWindowID id = wxID_ANY,
+        const wxPoint& pos = wxDefaultPosition,
+        const wxSize& size = wxDefaultSize,
+        long style = 0,
+        const wxString& name = wxGLCanvasName,
+        int *attribList = (int *) NULL,
+        const wxPalette& palette = wxNullPalette);
+
+    wxGLCanvas(wxWindow *parent,
+        const wxGLCanvas *shared = (wxGLCanvas *)NULL,
+        wxWindowID id = wxID_ANY,
+        const wxPoint& pos = wxDefaultPosition,
+        const wxSize& size = wxDefaultSize,
+        long style = 0,
+        const wxString& name = wxGLCanvasName,
+        int *attribList = 0,
+        const wxPalette& palette = wxNullPalette);
+
+    ~wxGLCanvas();
+
+    // Replaces wxWindow::Create functionality, since
+    // we need to use a different window class
+    bool Create(wxWindow *parent, wxWindowID id,
+        const wxPoint& pos, const wxSize& size,
+        long style, const wxString& name);
+
+    void SetCurrent();
+
+#ifdef __WXUNIVERSAL__
+    virtual bool SetCurrent(bool doit) { return wxWindow::SetCurrent(doit); };
+#endif
+
+    void SetColour(const wxChar *colour);
+
+    void SwapBuffers();
+
+    void OnSize(wxSizeEvent& event);
+
+    void OnQueryNewPalette(wxQueryNewPaletteEvent& event);
+
+    void OnPaletteChanged(wxPaletteChangedEvent& event);
+
+    inline wxGLContext* GetContext() const { return m_glContext; }
+
+    inline WXHDC GetHDC() const { return m_hDC; }
+
+    void SetupPixelFormat(int *attribList = (int *) NULL);
+
+    void SetupPalette(const wxPalette& palette);
+
+    wxPalette CreateDefaultPalette();
+
+    inline wxPalette* GetPalette() const { return (wxPalette *) &m_palette; }
+
+protected:
+    wxGLContext*   m_glContext;  // this is typedef-ed ptr, in fact
+    wxPalette      m_palette;
+    WXHDC          m_hDC;
+
+    DECLARE_EVENT_TABLE()
+};
+
+#endif
+    // _WX_GLCANVAS_H_
+