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54735dec84
The coding style has for a long time said to avoid using redundant glib data types such as gint or gchar etc because we feel that they make the code look unnecessarily foreign to developers coming from outside of the Gnome developer community. Note: When we tried to find the historical rationale for the types we just found that they were apparently only added for consistent syntax highlighting which didn't seem that compelling. Up until now we have been continuing to use some of the platform specific type such as gint{8,16,32,64} and gsize but this patch switches us over to using the standard c99 equivalents instead so we can further ensure that our code looks familiar to the widest range of C developers who might potentially contribute to Cogl. So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this switches all Cogl code to instead use the int{8,16,32,64}_t and uint{8,16,32,64}_t c99 types instead. Instead of gsize we now use size_t For now we are not going to use the c99 _Bool type and instead we have introduced a new CoglBool type to use instead of gboolean. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
210 lines
5.0 KiB
C
210 lines
5.0 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, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* SECTION:cogl-pango
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* @short_description: COGL-based text rendering using Pango
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*
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* FIXME
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*
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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 "cogl-pango.h"
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#include "cogl-pango-private.h"
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static GQuark cogl_pango_font_map_get_renderer_key (void) G_GNUC_CONST;
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/**
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* cogl_pango_font_map_new:
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*
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* Creates a new font map.
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*
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* Return value: (transfer full): the newly created #PangoFontMap
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*
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* Since: 1.0
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*/
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PangoFontMap *
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cogl_pango_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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/**
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* cogl_pango_font_map_create_context:
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* @fm: a #CoglPangoFontMap
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*
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* Creates a new #PangoContext from the passed font map.
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*
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* Return value: (transfer full): the newly created #PangoContext
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*
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* Since: 1.0
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*/
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PangoContext *
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cogl_pango_font_map_create_context (CoglPangoFontMap *fm)
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{
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g_return_val_if_fail (COGL_PANGO_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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/**
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* cogl_pango_font_map_get_renderer:
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* @fm: a #CoglPangoFontMap
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*
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* Retrieves the #CoglPangoRenderer for the passed font map.
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*
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* Return value: (transfer none): a #PangoRenderer
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*
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* Since: 1.0
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*/
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PangoRenderer *
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cogl_pango_font_map_get_renderer (CoglPangoFontMap *fm)
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{
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PangoRenderer *renderer;
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g_return_val_if_fail (COGL_PANGO_IS_FONT_MAP (fm), NULL);
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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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cogl_pango_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 (COGL_PANGO_TYPE_RENDERER, NULL);
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g_object_set_qdata_full (G_OBJECT (fm),
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cogl_pango_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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/**
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* cogl_pango_font_map_set_resolution:
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* @font_map: a #CoglPangoFontMap
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* @dpi: DPI to set
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*
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* Sets the resolution to be used by @font_map at @dpi.
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*
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* Since: 1.0
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*/
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void
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cogl_pango_font_map_set_resolution (CoglPangoFontMap *font_map,
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double dpi)
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{
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g_return_if_fail (COGL_PANGO_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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/**
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* cogl_pango_font_map_clear_glyph_cache:
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* @fm: a #CoglPangoFontMap
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*
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* Clears the glyph cache for @fm.
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*
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* Since: 1.0
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*/
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void
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cogl_pango_font_map_clear_glyph_cache (CoglPangoFontMap *fm)
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{
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PangoRenderer *renderer;
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renderer = cogl_pango_font_map_get_renderer (fm);
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_cogl_pango_renderer_clear_glyph_cache (COGL_PANGO_RENDERER (renderer));
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}
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/**
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* cogl_pango_font_map_set_use_mipmapping:
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* @fm: a #CoglPangoFontMap
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* @value: %TRUE to enable the use of mipmapping
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*
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* Sets whether the renderer for the passed font map should use
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* mipmapping when rendering a #PangoLayout.
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*
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* Since: 1.0
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*/
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void
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cogl_pango_font_map_set_use_mipmapping (CoglPangoFontMap *fm,
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CoglBool value)
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{
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CoglPangoRenderer *renderer;
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renderer = COGL_PANGO_RENDERER (cogl_pango_font_map_get_renderer (fm));
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_cogl_pango_renderer_set_use_mipmapping (renderer, value);
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}
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/**
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* cogl_pango_font_map_get_use_mipmapping:
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* @fm: a #CoglPangoFontMap
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*
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* Retrieves whether the #CoglPangoRenderer used by @fm will
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* use mipmapping when rendering the glyphs.
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*
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* Return value: %TRUE if mipmapping is used, %FALSE otherwise.
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*
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* Since: 1.0
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*/
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CoglBool
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cogl_pango_font_map_get_use_mipmapping (CoglPangoFontMap *fm)
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{
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CoglPangoRenderer *renderer;
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renderer = COGL_PANGO_RENDERER (cogl_pango_font_map_get_renderer (fm));
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return _cogl_pango_renderer_get_use_mipmapping (renderer);
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}
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static GQuark
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cogl_pango_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 ("CoglPangoFontMap");
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return renderer_key;
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}
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