diff options
Diffstat (limited to 'pango/pango-context.c')
| -rw-r--r-- | pango/pango-context.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/pango/pango-context.c b/pango/pango-context.c index f91d0fe6..f0cea733 100644 --- a/pango/pango-context.c +++ b/pango/pango-context.c @@ -1635,6 +1635,10 @@ update_metrics_from_items (PangoFontMetrics *metrics, GHashTable *fonts_seen = g_hash_table_new (NULL, NULL); PangoGlyphString *glyphs = pango_glyph_string_new (); GList *l; + glong text_width; + + /* This should typically be called with a sample text string. */ + g_return_if_fail (text_len > 0); metrics->approximate_char_width = 0; @@ -1663,7 +1667,9 @@ update_metrics_from_items (PangoFontMetrics *metrics, pango_glyph_string_free (glyphs); g_hash_table_destroy (fonts_seen); - metrics->approximate_char_width /= pango_utf8_strwidth (text); + text_width = pango_utf8_strwidth (text); + g_assert (text_width > 0); + metrics->approximate_char_width /= text_width; } /** |