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-rw-r--r--pango/pangocairo-fcfontmap.c140
1 files changed, 140 insertions, 0 deletions
diff --git a/pango/pangocairo-fcfontmap.c b/pango/pangocairo-fcfontmap.c
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+++ b/pango/pangocairo-fcfontmap.c
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+/* Pango
+ * pangocairo-fontmap.c: Cairo font handling, fontconfig backend
+ *
+ * Copyright (C) 2000-2005 Red Hat Software
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "pangofc-fontmap.h"
+#include "pangocairo.h"
+#include "pangocairo-private.h"
+#include "pangocairo-fc.h"
+
+typedef struct _PangoCairoFcFontMapClass PangoCairoFcFontMapClass;
+
+struct _PangoCairoFcFontMapClass
+{
+ PangoFcFontMapClass parent_class;
+};
+
+static void
+pango_cairo_fc_font_map_set_resolution (PangoCairoFontMap *cfontmap,
+ double dpi)
+{
+ PangoCairoFcFontMap *cffontmap = PANGO_CAIRO_FC_FONT_MAP (cfontmap);
+
+ cffontmap->dpi = dpi;
+
+ pango_fc_font_map_cache_clear (PANGO_FC_FONT_MAP (cfontmap));
+}
+
+static double
+pango_cairo_fc_font_map_get_resolution (PangoCairoFontMap *cfontmap)
+{
+ PangoCairoFcFontMap *cffontmap = PANGO_CAIRO_FC_FONT_MAP (cfontmap);
+
+ return cffontmap->dpi;
+}
+
+static PangoRenderer *
+pango_cairo_fc_font_map_get_renderer (PangoCairoFontMap *cfontmap)
+{
+ PangoCairoFcFontMap *cffontmap = PANGO_CAIRO_FC_FONT_MAP (cfontmap);
+
+ if (!cffontmap->renderer)
+ cffontmap->renderer = g_object_new (PANGO_TYPE_CAIRO_RENDERER, NULL);
+
+ return cffontmap->renderer;
+}
+
+static void
+cairo_font_map_iface_init (PangoCairoFontMapIface *iface)
+{
+ iface->set_resolution = pango_cairo_fc_font_map_set_resolution;
+ iface->get_resolution = pango_cairo_fc_font_map_get_resolution;
+ iface->get_renderer = pango_cairo_fc_font_map_get_renderer;
+}
+
+G_DEFINE_TYPE_WITH_CODE (PangoCairoFcFontMap, pango_cairo_fc_font_map, PANGO_TYPE_FC_FONT_MAP,
+ { G_IMPLEMENT_INTERFACE (PANGO_TYPE_CAIRO_FONT_MAP, cairo_font_map_iface_init) });
+
+static void
+pango_cairo_fc_font_map_finalize (GObject *object)
+{
+ PangoCairoFcFontMap *cffontmap = PANGO_CAIRO_FC_FONT_MAP (object);
+
+ if (cffontmap->renderer)
+ g_object_unref (cffontmap->renderer);
+
+ FT_Done_FreeType (cffontmap->library);
+
+ G_OBJECT_CLASS (pango_cairo_fc_font_map_parent_class)->finalize (object);
+}
+
+static void
+pango_cairo_fc_font_map_default_substitute (PangoFcFontMap *fcfontmap,
+ FcPattern *pattern)
+{
+ PangoCairoFcFontMap *cffontmap = PANGO_CAIRO_FC_FONT_MAP (fcfontmap);
+ FcValue v;
+
+ FcConfigSubstitute (NULL, pattern, FcMatchPattern);
+
+ if (FcPatternGet (pattern, FC_DPI, 0, &v) == FcResultNoMatch)
+ FcPatternAddDouble (pattern, FC_DPI, cffontmap->dpi);
+ FcDefaultSubstitute (pattern);
+}
+
+static PangoFcFont *
+pango_cairo_fc_font_map_new_font (PangoFcFontMap *fcfontmap,
+ FcPattern *pattern)
+{
+ return _pango_cairo_fc_font_new (PANGO_CAIRO_FC_FONT_MAP (fcfontmap), pattern);
+}
+
+static void
+pango_cairo_fc_font_map_class_init (PangoCairoFcFontMapClass *class)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (class);
+ PangoFcFontMapClass *fcfontmap_class = PANGO_FC_FONT_MAP_CLASS (class);
+
+ gobject_class->finalize = pango_cairo_fc_font_map_finalize;
+ fcfontmap_class->default_substitute = pango_cairo_fc_font_map_default_substitute;
+ fcfontmap_class->new_font = pango_cairo_fc_font_map_new_font;
+}
+
+static void
+pango_cairo_fc_font_map_init (PangoCairoFcFontMap *cffontmap)
+{
+ FT_Error error;
+
+ cffontmap->library = NULL;
+ error = FT_Init_FreeType (&cffontmap->library);
+ if (error != FT_Err_Ok)
+ g_error ("pango_cairo_font_map_init: Could not initialize freetype");
+
+ cffontmap->dpi = 96.0;
+}
+
+FT_Library
+_pango_cairo_fc_font_map_get_library (PangoCairoFcFontMap *fontmap)
+{
+ g_return_val_if_fail (PANGO_IS_CAIRO_FC_FONT_MAP (fontmap), NULL);
+
+ return fontmap->library;
+}
+