f20cfeadb4
Bug #919 - Replacement pango renderer (Neil Roberts) * clutter/clutter-backend.h: * clutter/clutter-backend.c: (clutter_backend_set_font_options), (clutter_backend_get_font_options): Add the ability to set the cairo_font_options_t* for the backend at construction time, so that backend implementations can have their own options. * clutter/clutter-color.c: Include pango/pango-attributes.h for the pango_color_parse() function. * clutter/clutter-label.c: (clutter_label_ensure_layout), (clutter_label_init), (clutter_label_set_text), (clutter_label_set_font_name), (clutter_label_set_ellipsize), (clutter_label_set_use_markup): Ensure that the cache is always primed when the Label changes; this makes sure that the cache is rebuilt outside the paint run, which should make the painting perform better especially on embedded devices. * clutter/clutter-entry.c: (clutter_entry_ensure_layout), (clutter_entry_init), (clutter_entry_set_text), (clutter_entry_set_font_name): Ditto as above. * clutter/clutter-private.h: * clutter/clutter-main.[ch]: Create the font-map inside the main context; add two new functions: clutter_clear_glyph_cache() clutter_set_use_mipmapped_text() that control the glyphs cache. * clutter/pango/Makefile.am: * clutter/pango/pangoclutter-fontmap.c: * clutter/pango/pangoclutter-private.h: * clutter/pango/pangoclutter-render.c: * clutter/pango/pangoclutter.h: Rewrite the Pango renderer using a PangoCairo context and saving the glyphs inside a more efficient cache. * configure.ac: Depend on pangocairo instead of pangoft2.
124 lines
3.4 KiB
C
124 lines
3.4 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2008 OpenedHand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/* This is needed to get the Pango headers to export stuff needed to
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subclass */
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#ifndef PANGO_ENABLE_BACKEND
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#define PANGO_ENABLE_BACKEND 1
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#endif
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#include <pango/pango-fontmap.h>
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#include <pango/pangocairo.h>
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#include <pango/pango-renderer.h>
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#include "pangoclutter.h"
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#include "pangoclutter-private.h"
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static GQuark pango_clutter_font_map_get_renderer_key (void) G_GNUC_CONST;
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PangoFontMap *
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pango_clutter_font_map_new (void)
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{
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return pango_cairo_font_map_new ();
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}
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PangoContext *
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pango_clutter_font_map_create_context (PangoClutterFontMap *fm)
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{
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g_return_val_if_fail (PANGO_CLUTTER_IS_FONT_MAP (fm), NULL);
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/* We can just directly use the pango context from the Cairo font
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map */
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return pango_cairo_font_map_create_context (PANGO_CAIRO_FONT_MAP (fm));
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}
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PangoRenderer *
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_pango_clutter_font_map_get_renderer (PangoClutterFontMap *fm)
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{
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PangoRenderer *renderer;
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/* We want to keep a cached pointer to the renderer from the font
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map instance but as we don't have a proper subclass we have to
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store it in the object data instead */
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renderer = g_object_get_qdata (G_OBJECT (fm),
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pango_clutter_font_map_get_renderer_key ());
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if (G_UNLIKELY (renderer == NULL))
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{
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renderer = g_object_new (PANGO_CLUTTER_TYPE_RENDERER, NULL);
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g_object_set_qdata_full (G_OBJECT (fm),
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pango_clutter_font_map_get_renderer_key (),
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renderer,
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g_object_unref);
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}
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return renderer;
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}
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void
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pango_clutter_font_map_set_resolution (PangoClutterFontMap *font_map,
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double dpi)
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{
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g_return_if_fail (PANGO_CLUTTER_IS_FONT_MAP (font_map));
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pango_cairo_font_map_set_resolution (PANGO_CAIRO_FONT_MAP (font_map), dpi);
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}
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void
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pango_clutter_font_map_clear_glyph_cache (PangoClutterFontMap *fm)
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{
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PangoRenderer *renderer;
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renderer = _pango_clutter_font_map_get_renderer (fm);
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_pango_clutter_renderer_clear_glyph_cache (PANGO_CLUTTER_RENDERER (renderer));
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}
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void
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pango_clutter_font_map_set_use_mipmapping (PangoClutterFontMap *fm,
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gboolean value)
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{
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PangoClutterRenderer *renderer;
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renderer = PANGO_CLUTTER_RENDERER (_pango_clutter_font_map_get_renderer (fm));
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_pango_clutter_renderer_set_use_mipmapping (renderer, value);
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}
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static GQuark
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pango_clutter_font_map_get_renderer_key (void)
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{
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static GQuark renderer_key = 0;
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if (G_UNLIKELY (renderer_key == 0))
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renderer_key = g_quark_from_static_string ("PangoClutterFontMap");
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return renderer_key;
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}
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