From cc6ac36dd3c7e5ef39b9f21ef77596a159f2100e Mon Sep 17 00:00:00 2001 From: Owen Taylor Date: Sun, 9 Jan 2005 00:12:39 +0000 Subject: Add checks for Cairo Sat Jan 8 16:46:37 2005 Owen Taylor * configure.in: Add checks for Cairo * pango/Makefile.am: Add libpangocairo. * pango/pangocairo-font.c pango/pangocairo-fontmap.c pango/pangocairo.h pango/pangocairo-private.h pango/pangocairo-fcfont.c pango/pangocairo-fcfontmap.c pango/pangocairo-fc.h: Start of a Cairo/FreeType backend. * pango/pangofc-fontmap.[ch]: Add a "get_render_key" virtual function to allow subclasses to specialize the details of how caching works. Add a default implementation that's a little more sophisticated than what was there before. * pango/pangoft2-private.h pangofc-font.c pangoft2.c: Move default implementations of has_char(), get_glyph() to the base class. * pango/pangofc-private.h pango/pangoft2-private.h: Move PANGO_UNITS_26_6 and friends to pango/pangofc-private.h. * examples/renderdemo.[ch] examples/pangoft2topgm.c examples/xftview.c: Allow passing in a custom function to transform drawing. * examples/Makefile.am examples/cairoview.c: Add a Cairo/Xlib example program. * examples/cairosimple.c: Simple Cairo example with output to a PNG. * pango/pango-layout.c (pango_layout_line_get_extents): Fix bug where line ink rect was always including 0, 0. --- pango/pangocairo-fcfontmap.c | 140 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 140 insertions(+) create mode 100644 pango/pangocairo-fcfontmap.c (limited to 'pango/pangocairo-fcfontmap.c') diff --git a/pango/pangocairo-fcfontmap.c b/pango/pangocairo-fcfontmap.c new file mode 100644 index 00000000..0d05c422 --- /dev/null +++ b/pango/pangocairo-fcfontmap.c @@ -0,0 +1,140 @@ +/* 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; +} + -- cgit v1.2.1