diff options
author | Alexander Larsson <alexl@redhat.com> | 2012-12-05 13:29:48 +0100 |
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committer | Alexander Larsson <alexl@redhat.com> | 2012-12-06 16:36:19 +0100 |
commit | 3f3a095a1809375ef600dc3a947b3ff2df08f22c (patch) | |
tree | 5d7d2cb3ada7f3fe92fb4525eea7907f185165e1 /pango/pangocairo-fcfontmap.c | |
parent | b359bb484bc7d27a835cfd6d9ffcaed582ebf2ae (diff) | |
download | pango-3f3a095a1809375ef600dc3a947b3ff2df08f22c.tar.gz |
Track changes in FontMaps using a serial
This adds the pango_font_map_get_serial method that lets you see
if a fontmap has changes since the last check. It adds implementations
to all current fontmaps.
https://bugzilla.gnome.org/show_bug.cgi?id=340066
Diffstat (limited to 'pango/pangocairo-fcfontmap.c')
-rw-r--r-- | pango/pangocairo-fcfontmap.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/pango/pangocairo-fcfontmap.c b/pango/pangocairo-fcfontmap.c index c2b410ee..69fe4929 100644 --- a/pango/pangocairo-fcfontmap.c +++ b/pango/pangocairo-fcfontmap.c @@ -33,15 +33,29 @@ struct _PangoCairoFcFontMapClass PangoFcFontMapClass parent_class; }; +static guint +pango_cairo_fc_font_map_get_serial (PangoFontMap *fontmap) +{ + PangoCairoFcFontMap *cffontmap = (PangoCairoFcFontMap *) (fontmap); + + return cffontmap->serial; +} + static void pango_cairo_fc_font_map_set_resolution (PangoCairoFontMap *cfontmap, double dpi) { PangoCairoFcFontMap *cffontmap = (PangoCairoFcFontMap *) (cfontmap); - cffontmap->dpi = dpi; + if (dpi != cffontmap->dpi) + { + cffontmap->serial++; + if (cffontmap->serial == 0) + cffontmap->serial++; + cffontmap->dpi = dpi; - pango_fc_font_map_cache_clear ((PangoFcFontMap *) (cfontmap)); + pango_fc_font_map_cache_clear ((PangoFcFontMap *) (cfontmap)); + } } static double @@ -162,10 +176,13 @@ static void pango_cairo_fc_font_map_class_init (PangoCairoFcFontMapClass *class) { GObjectClass *gobject_class = G_OBJECT_CLASS (class); + PangoFontMapClass *fontmap_class = PANGO_FONT_MAP_CLASS (class); PangoFcFontMapClass *fcfontmap_class = PANGO_FC_FONT_MAP_CLASS (class); gobject_class->finalize = pango_cairo_fc_font_map_finalize; + fontmap_class->get_serial = pango_cairo_fc_font_map_get_serial; + fcfontmap_class->fontset_key_substitute = pango_cairo_fc_font_map_fontset_key_substitute; fcfontmap_class->get_resolution = pango_cairo_fc_font_map_get_resolution_fc; @@ -188,6 +205,7 @@ pango_cairo_fc_font_map_init (PangoCairoFcFontMap *cffontmap) if (error != FT_Err_Ok) g_critical ("pango_cairo_font_map_init: Could not initialize freetype"); + cffontmap->serial = 1; cffontmap->dpi = 96.0; } |