Tools

[wxWidgets.git] / samples / opengl / isosurf / isosurf.cpp

diff --git a/samples/opengl/isosurf/isosurf.cpp b/samples/opengl/isosurf/isosurf.cpp
index 1979c71ead7fa8d643350156344c4314974f75f9..fbb0a5e75219301d6533b8bdecdde3f9fd8ae360 100644 (file)
--- a/samples/opengl/isosurf/isosurf.cpp
+++ b/samples/opengl/isosurf/isosurf.cpp
@@ -25,11 +25,31 @@
 #include "wx/wx.h"
 #endif
 
+#if !wxUSE_GLCANVAS
+#error Please set wxUSE_GLCANVAS to 1 in setup.h.
+#endif
+
 #include "wx/timer.h"
 #include "wx/glcanvas.h"
 
-#include <GL/gl.h>
-#include <GL/glu.h>
+#ifdef __WXMAC__
+#  ifdef __DARWIN__
+#    include <OpenGL/gl.h>
+#    include <OpenGL/glu.h>
+#  else
+#    include <gl.h>
+#    include <glu.h>
+#  endif
+#else
+#  include <GL/gl.h>
+#  include <GL/glu.h>
+#endif
+
+// disabled because this has apparently changed in OpenGL 1.2, so doesn't link
+// correctly if this is on...
+#ifdef GL_EXT_vertex_array
+#undef GL_EXT_vertex_array
+#endif
 
 #include "isosurf.h"
 
@@ -183,13 +203,6 @@ static void Init(void)
 #endif
 }
 
-
-static void Reshape(int width, int height)
-{
-  glViewport(0, 0, (GLint)width, (GLint)height);
-}
-
-
 static GLenum Args(int argc, char **argv)
 {
    GLint i;
@@ -249,9 +262,14 @@ bool MyApp::OnInit(void)
 #ifdef __WXMSW__
   int *gl_attrib = NULL;
 #else
-  int gl_attrib[20] = { GLX_RGBA, GLX_RED_SIZE, 1, GLX_GREEN_SIZE, 1,
-                       GLX_BLUE_SIZE, 1, GLX_DEPTH_SIZE, 1,
-                       GLX_DOUBLEBUFFER, None };
+  int gl_attrib[20] = { WX_GL_RGBA, WX_GL_MIN_RED, 1, WX_GL_MIN_GREEN, 1,
+                       WX_GL_MIN_BLUE, 1, WX_GL_DEPTH_SIZE, 1,
+                       WX_GL_DOUBLEBUFFER,
+#  ifdef __WXMAC__
+                       GL_NONE };
+#  else
+                       None };
+#  endif
 #endif
 
   if(!doubleBuffer)
@@ -262,8 +280,9 @@ bool MyApp::OnInit(void)
 #endif
       doubleBuffer = GL_FALSE;
   }
-  frame->m_canvas = new TestGLCanvas(frame, -1, wxPoint(0, 0), wxSize(200, 200), 0, "TestGLCanvas",
-                                  gl_attrib);
+ 
+  frame->m_canvas = new TestGLCanvas(frame, -1, wxDefaultPosition, wxDefaultSize,
+                                     0, "TestGLCanvas", gl_attrib );
 
   // Show the frame
   frame->Show(TRUE);
@@ -312,6 +331,7 @@ TestGLCanvas::TestGLCanvas(wxWindow *parent, wxWindowID id,
 {
    parent->Show(TRUE);
    SetCurrent();
+
    /* Make sure server supports the vertex array extension */
    char* extensions = (char *) glGetString( GL_EXTENSIONS );
    if (!extensions || !strstr( extensions, "GL_EXT_vertex_array" )) {
@@ -334,20 +354,27 @@ void TestGLCanvas::OnPaint( wxPaintEvent& event )
     if (!GetContext()) return;
 #endif
 
+    SetCurrent();
+
     draw1();
     SwapBuffers();
 }
 
 void TestGLCanvas::OnSize(wxSizeEvent& event)
 {
+    // this is also necessary to update the context on some platforms
+    wxGLCanvas::OnSize(event);
+    
+    // set GL viewport (not called by wxGLCanvas::OnSize on all platforms...)
+               int w, h;
+               GetClientSize(&w, &h);
 #ifndef __WXMOTIF__
-    if (!GetContext()) return;
+    if (GetContext())
 #endif
-
+    {
     SetCurrent();
-    int width, height;
-    GetClientSize(& width, & height);
-    Reshape(width, height);
+        glViewport(0, 0, (GLint) w, (GLint) h);
+    }
 }
 
 void TestGLCanvas::OnChar(wxKeyEvent& event)