2.5: Couple of small fun features

* Text window font size now supports full range 8-32, instead of
  just 12 and 15. I added BLF_fixed_width to get the character
  width of a fixed size font.

* Buttons do undo push on change again.

* Animated/Keyframe/Driver colors are now themable, with blend
  value to blend with original color. Set this to 0.5 now to
  give colors less constrast.
* Fix tooltip popping up with RMB menu open, and missing redraw.

* Autokeyframe now works for buttons.

* Driver expressions can be edited in place in a button now.
  (still some refresh issues).
* Also made python driver default for the Add Driver function
  in the RMB button. This way you don't have to open a Graph
  editor if you just want to type an expression. Also, the
  default expression then is the current value.

* Tooltips now show some extra info, not sure what is good to
  have, but currently I added:
  * Shortcut key for operator buttons.
  * Python struct & property name for RNA buttons.
  * Expression for driven values.
  * Value for text/search/pointer buttons.

1 files changed, 21 insertions, 0 deletions

diff --git a/source/blender/blenfont/intern/blf_font.c b/source/blender/blenfont/intern/blf_font.c
index affc35ea11e..6fc35a96e1e 100644
--- a/source/blender/blenfont/intern/blf_font.c
+++ b/source/blender/blenfont/intern/blf_font.c
@@ -274,6 +274,27 @@ float blf_font_height(FontBLF *font, char *str)
 	return((box.ymax - box.ymin) * font->aspect);
 }
 
+float blf_font_fixed_width(FontBLF *font)
+{
+	GlyphBLF *g;
+	FT_UInt glyph_index;
+	unsigned int c = ' ';
+
+	if (!font->glyph_cache)
+		return 0.0f;
+
+	glyph_index= FT_Get_Char_Index(font->face, c);
+	g= blf_glyph_search(font->glyph_cache, c);
+	if (!g)
+		g= blf_glyph_add(font, glyph_index, c);
+
+	/* if we don't find the glyph. */
+	if (!g)
+		return 0.0f;
+	
+	return g->advance;
+}
+
 void blf_font_free(FontBLF *font)
 {
 	GlyphCacheBLF *gc;