UI: Ability to Print Bold and Italics

Adds the ability to print text in bold or italics style, synthesized from a single base UI font.

Differential Revision: https://developer.blender.org/D7893

Reviewed by Brecht Van Lommel

1 files changed, 5 insertions, 4 deletions

diff --git a/source/blender/blenfont/intern/blf_thumbs.c b/source/blender/blenfont/intern/blf_thumbs.c
index 37eed29f6fe..6aa39e3aa71 100644
--- a/source/blender/blenfont/intern/blf_thumbs.c
+++ b/source/blender/blenfont/intern/blf_thumbs.c
@@ -66,6 +66,7 @@ void BLF_thumb_preview(const char *filename,
   int font_shrink = 4;
 
   FontBLF *font;
+  GlyphCacheBLF *gc;
   int i;
 
   /* Create a new blender font obj and fill it with default values */
@@ -96,9 +97,9 @@ void BLF_thumb_preview(const char *filename,
     int draw_str_i18n_nbr = 0;
 
     blf_font_size(font, (unsigned int)MAX2(font_size_min, font_size_curr), dpi);
-
-    /* font->glyph_cache remains NULL if blf_font_size() failed to set font size */
-    if (!font->glyph_cache) {
+    gc = blf_glyph_cache_find(font, font->size, font->dpi);
+    /* There will be no matching glyph cache if blf_font_size() failed to set font size. */
+    if (!gc) {
       break;
     }
 
@@ -106,7 +107,7 @@ void BLF_thumb_preview(const char *filename,
     font_size_curr -= (font_size_curr / font_shrink);
     font_shrink += 1;
 
-    font->pos[1] -= font->glyph_cache->ascender * 1.1f;
+    font->pos[1] -= gc->ascender * 1.1f;
 
     /* We fallback to default english strings in case not enough chars are available in current
      * font for given translated string (useful in non-latin i18n context, like Chinese,