avoid creating and immediately destroying a wxGraphicsContext when creating a wxDC...

[wxWidgets.git] / include / wx / glcanvas.h

diff --git a/include/wx/glcanvas.h b/include/wx/glcanvas.h
index 8b82b78c3a5f8d4f4822997172629d2edc3eb9d4..8e7de1f6e96385cde3d6119e8ca4a2dc32e2e839 100644 (file)
--- a/include/wx/glcanvas.h
+++ b/include/wx/glcanvas.h
@@ -49,10 +49,10 @@ enum
     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)
     WX_GL_SAMPLE_BUFFERS,  // 1 for multisampling support (antialiasing)
-    WX_GL_SAMPLES          // 4 for 2x2 antialising supersampling on most graphics cards
+    WX_GL_SAMPLES          // 4 for 2x2 antialiasing supersampling on most graphics cards
 };
 
-#define wxGLCanvasName _T("GLCanvas")
+#define wxGLCanvasName wxT("GLCanvas")
 
 // ----------------------------------------------------------------------------
 // wxGLContextBase: OpenGL rendering context
@@ -113,16 +113,16 @@ public:
     // check if the given attributes are supported without creating a canvas
     static bool IsDisplaySupported(const int *attribList);
 
+#if wxUSE_PALETTE
     const wxPalette *GetPalette() const { return &m_palette; }
+#endif // wxUSE_PALETTE
 
     // miscellaneous helper functions
     // ------------------------------
 
-#ifndef wxHAS_OPENGL_ES 
     // call glcolor() for the colour with the given name, return false if
     // colour not found
     bool SetColour(const wxString& colour);
-#endif
 
     // return true if the extension with given name is supported
     //
@@ -143,7 +143,7 @@ public:
 
 #ifdef __WXUNIVERSAL__
     // resolve the conflict with wxWindowUniv::SetCurrent()
-    virtual bool SetCurrent(bool doit) { return wxWindow::SetCurrent(doit); };
+    virtual bool SetCurrent(bool doit) { return wxWindow::SetCurrent(doit); }
 #endif
 
 protected:
@@ -151,16 +151,18 @@ protected:
     // (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; }
-
     // check if the given extension name is present in the space-separated list
     // of extensions supported by the current implementation such as returned
     // by glXQueryExtensionsString() or glGetString(GL_EXTENSIONS)
     static bool IsExtensionInList(const char *list, const char *extension);
 
+#if wxUSE_PALETTE
+    // create default palette if we're not using RGBA mode
+    // (not supported in most ports)
+    virtual wxPalette CreateDefaultPalette() { return wxNullPalette; }
+
     wxPalette m_palette;
+#endif // wxUSE_PALETTE
 
 #if WXWIN_COMPATIBILITY_2_8
     wxGLContext *m_glContext;
@@ -215,6 +217,33 @@ private:
 
 #endif // !wxGL_APP_DEFINED
 
+// ----------------------------------------------------------------------------
+// wxGLAPI: an API wrapper that allows the use of 'old' APIs even on OpenGL
+// platforms that don't support it natively anymore, if the APIs are available
+// it's a mere redirect
+// ----------------------------------------------------------------------------
+
+#ifndef wxUSE_OPENGL_EMULATION
+    #define wxUSE_OPENGL_EMULATION 0
+#endif
+
+class WXDLLIMPEXP_GL wxGLAPI : public wxObject
+{
+public:
+    wxGLAPI();
+    ~wxGLAPI();
+
+    static void glFrustum(GLfloat left, GLfloat right, GLfloat bottom,
+                            GLfloat top, GLfloat zNear, GLfloat zFar);
+    static void glBegin(GLenum mode);
+    static void glTexCoord2f(GLfloat s, GLfloat t);
+    static void glVertex3f(GLfloat x, GLfloat y, GLfloat z);
+    static void glNormal3f(GLfloat nx, GLfloat ny, GLfloat nz);
+    static void glColor4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a);
+    static void glColor3f(GLfloat r, GLfloat g, GLfloat b);
+    static void glEnd();
+};
+
 #endif // wxUSE_GLCANVAS
 
 #endif // _WX_GLCANVAS_H_BASE_