X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5d3e7b52d84580c28df8f754b81363502f917ac7..9d52aad39a4e3b52c5baa50b9cc55caaf91bb026:/include/wx/glcanvas.h

diff --git a/include/wx/glcanvas.h b/include/wx/glcanvas.h
index 2ba47b60db..bb4ffa498a 100644
--- a/include/wx/glcanvas.h
+++ b/include/wx/glcanvas.h
@@ -1,3 +1,14 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/glcanvas.h
+// Purpose:     wxGLCanvas base header
+// Author:      Julian Smart
+// Modified by:
+// Created:
+// Copyright:   (c) Julian Smart
+// RCS-ID:      $Id$
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
 #ifndef _WX_GLCANVAS_H_BASE_
 #define _WX_GLCANVAS_H_BASE_
 
@@ -5,39 +16,188 @@
 
 #if wxUSE_GLCANVAS
 
+#include "wx/app.h"
+#include "wx/palette.h"
+#include "wx/window.h"
+
+class WXDLLIMPEXP_FWD_GL wxGLCanvas;
+class WXDLLIMPEXP_FWD_GL wxGLContext;
+
+// ----------------------------------------------------------------------------
+// Constants for attributes list
+// ----------------------------------------------------------------------------
+
+// The generic OpenGL implementation doesn't support most of these options,
+// such as stereo, auxiliary buffers, alpha channel, and accumulator 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 alpha 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 alpha buffer with most bits (> MIN_ACCUM_ALPHA bits) */
+};
+
 #define wxGLCanvasName _T("GLCanvas")
 
-#if defined(__WXMSW__)
-#include "wx/msw/glcanvas.h"
-#elif defined(__WXMOTIF__)
-#include "wx/x11/glcanvas.h"
-#elif defined(__WXGTK__)
-#include "wx/gtk/glcanvas.h"
-#elif defined(__WXX11__)
-#include "wx/x11/glcanvas.h"
-#elif defined(__WXMAC__)
-#include "wx/mac/glcanvas.h"
-#elif defined(__WXPM__)
-#include "wx/os2/glcanvas.h"
+// ----------------------------------------------------------------------------
+// wxGLContextBase: OpenGL rendering context
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_GL wxGLContextBase : public wxObject
+{
+public:
+    /*
+        The derived class should provide a ctor with this signature:
+
+        wxGLContext(wxGLCanvas *win, const wxGLContext *other = NULL);
+     */
+
+    // set this context as the current one
+    virtual void SetCurrent(const wxGLCanvas& win) const = 0;
+};
+
+// ----------------------------------------------------------------------------
+// wxGLCanvasBase: window which can be used for OpenGL rendering
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_GL wxGLCanvasBase : public wxWindow
+{
+public:
+    // default ctor doesn't initialize the window, use Create() later
+    wxGLCanvasBase();
+
+    virtual ~wxGLCanvasBase();
+
+
+    /*
+       The derived class should provide a ctor with this signature:
+
+    wxGLCanvas(wxWindow *parent,
+               wxWindowID id = wxID_ANY,
+               int* attribList = 0,
+               const wxPoint& pos = wxDefaultPosition,
+               const wxSize& size = wxDefaultSize,
+               long style = 0,
+               const wxString& name = wxGLCanvasName,
+               const wxPalette& palette = wxNullPalette);
+     */
+
+    // operations
+    // ----------
+
+    // set the given context associated with this window as the current one
+    void SetCurrent(const wxGLContext& context) const;
+
+    // flush the back buffer (if we have it)
+    virtual void SwapBuffers() = 0;
+
+
+    // accessors
+    // ---------
+
+    const wxPalette *GetPalette() const { return &m_palette; }
+
+    // miscellaneous helper functions
+    // ------------------------------
+
+    // call glcolor() for the colour with the given name, return false if
+    // colour not found
+    bool SetColour(const wxString& colour);
+
+
+
+    // deprecated methods using the implicit wxGLContext
+#if WXWIN_COMPATIBILITY_2_8
+    wxDEPRECATED( wxGLContext* GetContext() const );
+
+    wxDEPRECATED( void SetCurrent() );
+
+    wxDEPRECATED( void OnSize(wxSizeEvent& event) );
+#endif // WXWIN_COMPATIBILITY_2_8
+
+#ifdef __WXUNIVERSAL__
+    // resolve the conflict with wxWindowUniv::SetCurrent()
+    virtual bool SetCurrent(bool doit) { return wxWindow::SetCurrent(doit); };
 #endif
 
-#include "wx/app.h"
-class WXDLLIMPEXP_GL wxGLApp : public wxApp
+protected:
+    // override this to implement SetColour() in GL_INDEX_MODE
+    // (currently only implemented in wxX11 and wxMotif ports)
+    virtual int GetColourIndex(const wxColour& WXUNUSED(col)) { return -1; }
+
+    // create default palette if we're not using RGBA mode
+    // (not supported in most ports)
+    virtual wxPalette CreateDefaultPalette() { return wxNullPalette; }
+
+
+    wxPalette m_palette;
+
+#if WXWIN_COMPATIBILITY_2_8
+    wxGLContext *m_glContext;
+#endif // WXWIN_COMPATIBILITY_2_8
+};
+
+// ----------------------------------------------------------------------------
+// wxGLApp: a special wxApp subclass for OpenGL applications which must be used
+//          to select a visual compatible with the given attributes
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_GL wxGLAppBase : public wxApp
 {
 public:
-    wxGLApp() : wxApp() { }
-    virtual ~wxGLApp();
+    wxGLAppBase() : wxApp() { }
 
     // use this in the constructor of the user-derived wxGLApp class to
     // determine if an OpenGL rendering context with these attributes
     // is available - returns true if so, false if not.
-    bool InitGLVisual(int *attribList);
+    virtual bool InitGLVisual(const int *attribList) = 0;
+};
+
+#if defined(__WXMSW__)
+    #include "wx/msw/glcanvas.h"
+#elif defined(__WXMOTIF__) || defined(__WXX11__)
+    #include "wx/x11/glcanvas.h"
+#elif defined(__WXGTK20__)
+    #include "wx/gtk/glcanvas.h"
+#elif defined(__WXGTK__)
+    #include "wx/gtk1/glcanvas.h"
+#elif defined(__WXMAC__)
+    #include "wx/mac/glcanvas.h"
+#elif defined(__WXCOCOA__)
+    #include "wx/cocoa/glcanvas.h"
+#else
+    #error "wxGLCanvas not supported in this wxWidgets port"
+#endif
+
+// wxMac and wxMSW don't need anything extra in wxGLAppBase, so declare it here
+#ifndef wxGL_APP_DEFINED
+
+class WXDLLIMPEXP_GL wxGLApp : public wxGLAppBase
+{
+public:
+    wxGLApp() : wxGLAppBase() { }
+
+    virtual bool InitGLVisual(const int *attribList);
 
 private:
     DECLARE_DYNAMIC_CLASS(wxGLApp)
 };
 
-#endif
-    // wxUSE_GLCANVAS
-#endif
-    // _WX_GLCANVAS_H_BASE_
+#endif // !wxGL_APP_DEFINED
+
+#endif // wxUSE_GLCANVAS
+
+#endif // _WX_GLCANVAS_H_BASE_