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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 <config.h>
#include <cairo-ft.h>
#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 = (PangoCairoFcFontMap *) (cfontmap);
cffontmap->dpi = dpi;
pango_fc_font_map_cache_clear ((PangoFcFontMap *) (cfontmap));
}
static double
pango_cairo_fc_font_map_get_resolution_cairo (PangoCairoFontMap *cfontmap)
{
PangoCairoFcFontMap *cffontmap = (PangoCairoFcFontMap *) (cfontmap);
return cffontmap->dpi;
}
static PangoRenderer *
pango_cairo_fc_font_map_get_renderer (PangoCairoFontMap *cfontmap)
{
PangoCairoFcFontMap *cffontmap = (PangoCairoFcFontMap *) (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_cairo;
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 = (PangoCairoFcFontMap *) (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_context_substitute (PangoFcFontMap *fcfontmap,
PangoContext *context,
FcPattern *pattern)
{
FcConfigSubstitute (NULL, pattern, FcMatchPattern);
cairo_ft_font_options_substitute (_pango_cairo_context_get_merged_font_options (context),
pattern);
FcDefaultSubstitute (pattern);
}
static double
pango_cairo_fc_font_map_get_resolution_fc (PangoFcFontMap *fcfontmap,
PangoContext *context)
{
PangoCairoFcFontMap *cffontmap = (PangoCairoFcFontMap *) (fcfontmap);
double dpi;
if (context)
{
dpi = pango_cairo_context_get_resolution (context);
if (dpi <= 0)
dpi = cffontmap->dpi;
}
else
dpi = cffontmap->dpi;
return dpi;
}
static gconstpointer
pango_cairo_fc_font_map_context_key_get (PangoFcFontMap *fcfontmap,
PangoContext *context)
{
return _pango_cairo_context_get_merged_font_options (context);
}
static gpointer
pango_cairo_fc_font_map_context_key_copy (PangoFcFontMap *fcfontmap,
gconstpointer key)
{
return cairo_font_options_copy (key);
}
static void
pango_cairo_fc_font_map_context_key_free (PangoFcFontMap *fcfontmap,
gpointer key)
{
cairo_font_options_destroy (key);
}
static guint32
pango_cairo_fc_font_map_context_key_hash (PangoFcFontMap *fcfontmap,
gconstpointer key)
{
return (guint32)cairo_font_options_hash (key);
}
static gboolean
pango_cairo_fc_font_map_context_key_equal (PangoFcFontMap *fcfontmap,
gconstpointer key_a,
gconstpointer key_b)
{
return cairo_font_options_equal (key_a, key_b);
}
static PangoFcFont *
pango_cairo_fc_font_map_create_font (PangoFcFontMap *fcfontmap,
PangoContext *context,
const PangoFontDescription *desc,
FcPattern *pattern)
{
return _pango_cairo_fc_font_new ((PangoCairoFcFontMap *) (fcfontmap),
context, desc, 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->context_substitute = pango_cairo_fc_font_map_context_substitute;
fcfontmap_class->get_resolution = pango_cairo_fc_font_map_get_resolution_fc;
fcfontmap_class->context_key_get = pango_cairo_fc_font_map_context_key_get;
fcfontmap_class->context_key_copy = pango_cairo_fc_font_map_context_key_copy;
fcfontmap_class->context_key_free = pango_cairo_fc_font_map_context_key_free;
fcfontmap_class->context_key_hash = pango_cairo_fc_font_map_context_key_hash;
fcfontmap_class->context_key_equal = pango_cairo_fc_font_map_context_key_equal;
fcfontmap_class->create_font = pango_cairo_fc_font_map_create_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_critical ("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;
}
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