DONE:

- Removed usage of gdk_gl_font_use_pango_font() which is no longer in
  GtkGLExt Git.  Radiant now compiles on Linux From Scratch using current
  versions of software.
- As a side effect to the above, font inconsistency issues (like really
  large intermittent font in GL views) are gone.  Font looks better too.
- Changing algorithm for labeling grid view to be more robust.  Uses new
  functions gtk_glwidget_font_ascent() and gtk_glwidget_font_descent(),	and
  uses locally defined "cushion" variables.
- In xywindow.cpp, changing stepx and stepy based on 40 pixels, not 32.
  When coordinate numbers are very large the labels get too cluttered.
- Added	calls to gtk_gl_init() and gdk_gl_init() in main().  This is
  recommended according	to the GtkGLExt	reference manual.
- Tested all changes on	Ubuntu 10.10 and Debian	5.0 (Lenny).
TODO:
- In glDrawPixels(), instead of using a 32 bit pixel with
  GL_UNSIGNED_INT_8_8_8_8, see if we can use an 8 bit variant where each
  byte defines opacity and the GL current color is used.  In other words, try
  to use the FT_Bitmap directly without conversion.
- Examine every other use of gtk_glwidget_print_string() and
  gtk_glwidget_print_char() to make sure the positions are determined
  accurately.
NOT TODO:
- Decided not to use glBitmap() with display lists because it would
  disallow pretty antialiased fonts.


git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/trunk@335 8a3a26a2-13c4-0310-b231-cf6edde360e5

radiant/main.cpp

@@ -34,6 +34,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #endif
 
 #include <gtk/gtk.h>
+#include <gtk/gtkgl.h>
 #include <glib/gi18n.h>
 #include "stdafx.h"
 #include <assert.h>
@@ -44,6 +45,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 #include "watchbsp.h"
 #include "filters.h"
+#include "glwidget.h"
 
 bool g_bBuildList = false;
 int g_argc;
@@ -503,6 +505,11 @@ int main( int argc, char* argv[] ) {
 //  gtk_disable_setlocale();
 
   gtk_init(&argc, &argv);
+  gtk_gl_init(&argc, &argv);
+  gdk_gl_init(&argc, &argv);
+
+  // TODO: Find a better place to call this.
+  gtk_glwidget_create_font();
 
   if ((ptr = getenv ("Q3R_LIBGL")) != NULL)
     libgl = ptr;