135 lines
4.3 KiB
C
135 lines
4.3 KiB
C
/* Pango
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* pangoclutter-private.h: private symbols for Clutter backend
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*
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* Copyright (C) 2006 Matthew Allum <mallum@o-hand.com>
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*
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* This file is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library 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 file 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library 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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#ifndef __PANGOCLUTTER_PRIVATE_H__
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#define __PANGOCLUTTER_PRIVATE_H__
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#include "pangoclutter.h"
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#include <pango/pango-renderer.h>
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#include <glib-object.h>
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#include <pango/pangofc-decoder.h>
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/* Defines duped */
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#define PANGO_SCALE_26_6 (PANGO_SCALE / (1<<6))
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/* We only use the PANGO_SCALE_26_6 macro for scaling font size.
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* Font sizes are normally given in points with at most one single
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* decimal place fraction. If we do not do the rounding here, we will
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* be suffering from an error < 0.016pt, which is entirely negligeable
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* as far as font sizes are concerned.
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*/
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#if 0
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#define PANGO_PIXELS_26_6(d) \
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(((d) >= 0) ? \
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((d) + PANGO_SCALE_26_6 / 2) / PANGO_SCALE_26_6 : \
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((d) - PANGO_SCALE_26_6 / 2) / PANGO_SCALE_26_6)
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#else
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#define PANGO_PIXELS_26_6(d) \
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(d / PANGO_SCALE_26_6)
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#endif
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#define PANGO_UNITS_26_6(d) (PANGO_SCALE_26_6 * (d))
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#define PANGO_TYPE_CLUTTER_FONT (pango_clutter_font_get_type ())
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#define PANGO_CLUTTER_FONT(object) \
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(G_TYPE_CHECK_INSTANCE_CAST ((object), \
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PANGO_TYPE_CLUTTER_FONT, \
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PangoClutterFont))
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#define PANGO_CLUTTER_IS_FONT(object) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CLUTTER_FONT))
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typedef struct _PangoClutterFont PangoClutterFont;
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typedef struct _PangoClutterGlyphInfo PangoClutterGlyphInfo;
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struct _PangoClutterFont
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{
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PangoFcFont font;
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FT_Face face;
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int load_flags;
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int size;
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GSList *metrics_by_lang;
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GHashTable *glyph_info;
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GDestroyNotify glyph_cache_destroy;
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};
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struct _PangoClutterGlyphInfo
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{
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PangoRectangle logical_rect;
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PangoRectangle ink_rect;
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void *cached_glyph;
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};
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PangoGlyph
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pango_clutter_get_unknown_glyph (PangoFont *font);
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GType pango_clutter_font_get_type (void);
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PangoClutterFont *
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_pango_clutter_font_new (PangoClutterFontMap *fontmap,
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FcPattern *pattern);
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FT_Face
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pango_clutter_font_get_face (PangoFont *font);
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FT_Library
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_pango_clutter_font_map_get_library (PangoFontMap *fontmap);
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void *
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_pango_clutter_font_get_cache_glyph_data (PangoFont *font,
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int glyph_index);
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void
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_pango_clutter_font_set_cache_glyph_data (PangoFont *font,
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int glyph_index,
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void *cached_glyph);
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void
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_pango_clutter_font_set_glyph_cache_destroy (PangoFont *font,
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GDestroyNotify destroy_notify);
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/* Renderer */
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typedef struct _PangoClutterRenderer PangoClutterRenderer;
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#define PANGO_TYPE_CLUTTER_RENDERER (pango_clutter_renderer_get_type())
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#define PANGO_CLUTTER_RENDERER(object) \
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(G_TYPE_CHECK_INSTANCE_CAST ((object), \
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PANGO_TYPE_CLUTTER_RENDERER, \
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PangoClutterRenderer))
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#define PANGO_IS_CLUTTER_RENDERER(object) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CLUTTER_RENDERER))
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GType pango_clutter_renderer_get_type (void);
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PangoRenderer *
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_pango_clutter_font_map_get_renderer (PangoClutterFontMap *fontmap);
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/* HACK make this public to avoid a mass of re-implementation*/
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void
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pango_fc_font_get_raw_extents (PangoFcFont *font,
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FT_Int32 load_flags,
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PangoGlyph glyph,
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PangoRectangle *ink_rect,
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PangoRectangle *logical_rect);
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#endif
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