(x_draw_glyph_string_background): Clear the background

manually when cleartype is in use.
(x_draw_glyph_string_foreground): Draw text transparently when
cleartype is in use.

src/ChangeLog

 2008-02-24  Jason Rumney  <jasonr@gnu.org>
 
+	* w32term.c: (x_draw_glyph_string_background): Clear the background
+	manually when cleartype is in use.
+	(x_draw_glyph_string_foreground): Draw text transparently when
+	cleartype is in use.
+
 	* w32font.c (w32font_text_extents): Avoid getting HDC and selecting
 	a font into it unless we have to.
 

src/w32term.c

@@ -1846,6 +1846,7 @@ x_draw_glyph_string_background (s, force_p)
 	       || s->font_not_found_p
 	       || s->extends_to_end_of_line_p
                || s->font->bdf
+	       || cleartype_active
 	       || force_p)
 	{
 	  x_clear_glyph_string_rect (s, s->x, s->y + box_line_width,
@@ -1874,7 +1875,8 @@ x_draw_glyph_string_foreground (s)
   else
     x = s->x;
 
-  if (s->for_overlaps || (s->background_filled_p && s->hl != DRAW_CURSOR))
+  if (s->for_overlaps || (s->background_filled_p && s->hl != DRAW_CURSOR)
+      || cleartype_active)
     SetBkMode (s->hdc, TRANSPARENT);
   else
     SetBkMode (s->hdc, OPAQUE);