/usr/include/pango-1.0/pango/pango-renderer.h is in libpango1.0-dev 1.38.1-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 | /* Pango
* pango-renderer.h: Base class for rendering
*
* Copyright (C) 2004, Red Hat, Inc.
*
* 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.
*/
#ifndef __PANGO_RENDERER_H_
#define __PANGO_RENDERER_H_
#include <pango/pango-layout.h>
G_BEGIN_DECLS
#define PANGO_TYPE_RENDERER (pango_renderer_get_type())
#define PANGO_RENDERER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_RENDERER, PangoRenderer))
#define PANGO_IS_RENDERER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_RENDERER))
#define PANGO_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_RENDERER, PangoRendererClass))
#define PANGO_IS_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_RENDERER))
#define PANGO_RENDERER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_RENDERER, PangoRendererClass))
typedef struct _PangoRenderer PangoRenderer;
typedef struct _PangoRendererClass PangoRendererClass;
typedef struct _PangoRendererPrivate PangoRendererPrivate;
/**
* PangoRenderPart:
* @PANGO_RENDER_PART_FOREGROUND: the text itself
* @PANGO_RENDER_PART_BACKGROUND: the area behind the text
* @PANGO_RENDER_PART_UNDERLINE: underlines
* @PANGO_RENDER_PART_STRIKETHROUGH: strikethrough lines
*
* #PangoRenderPart defines different items to render for such
* purposes as setting colors.
*
* Since: 1.8
**/
/* When extending, note N_RENDER_PARTS #define in pango-renderer.c */
typedef enum
{
PANGO_RENDER_PART_FOREGROUND,
PANGO_RENDER_PART_BACKGROUND,
PANGO_RENDER_PART_UNDERLINE,
PANGO_RENDER_PART_STRIKETHROUGH
} PangoRenderPart;
/**
* PangoRenderer:
* @matrix: (nullable): the current transformation matrix for
* the Renderer; may be %NULL, which should be treated the
* same as the identity matrix.
*
* #PangoRenderer is a base class for objects that are used to
* render Pango objects such as #PangoGlyphString and
* #PangoLayout.
*
* Since: 1.8
**/
struct _PangoRenderer
{
/*< private >*/
GObject parent_instance;
PangoUnderline underline;
gboolean strikethrough;
int active_count;
/*< public >*/
PangoMatrix *matrix; /* May be NULL */
/*< private >*/
PangoRendererPrivate *priv;
};
/**
* PangoRendererClass:
* @draw_glyphs: draws a #PangoGlyphString
* @draw_rectangle: draws a rectangle
* @draw_error_underline: draws a squiggly line that approximately
* covers the given rectangle in the style of an underline used to
* indicate a spelling error.
* @draw_shape: draw content for a glyph shaped with #PangoAttrShape.
* @x, @y are the coordinates of the left edge of the baseline,
* in user coordinates.
* @draw_trapezoid: draws a trapezoidal filled area
* @draw_glyph: draws a single glyph
* @part_changed: do renderer specific processing when rendering
* attributes change
* @begin: Do renderer-specific initialization before drawing
* @end: Do renderer-specific cleanup after drawing
* @prepare_run: updates the renderer for a new run
* @draw_glyph_item: draws a #PangoGlyphItem
*
* Class structure for #PangoRenderer.
*
* Since: 1.8
**/
struct _PangoRendererClass
{
/*< private >*/
GObjectClass parent_class;
/* vtable - not signals */
/*< public >*/
/* All of the following have default implementations
* and take as coordinates user coordinates in Pango units
*/
void (*draw_glyphs) (PangoRenderer *renderer,
PangoFont *font,
PangoGlyphString *glyphs,
int x,
int y);
void (*draw_rectangle) (PangoRenderer *renderer,
PangoRenderPart part,
int x,
int y,
int width,
int height);
void (*draw_error_underline) (PangoRenderer *renderer,
int x,
int y,
int width,
int height);
/* Nothing is drawn for shaped glyphs unless this is implemented */
void (*draw_shape) (PangoRenderer *renderer,
PangoAttrShape *attr,
int x,
int y);
/* These two must be implemented and take coordinates in
* device space as doubles.
*/
void (*draw_trapezoid) (PangoRenderer *renderer,
PangoRenderPart part,
double y1_,
double x11,
double x21,
double y2,
double x12,
double x22);
void (*draw_glyph) (PangoRenderer *renderer,
PangoFont *font,
PangoGlyph glyph,
double x,
double y);
/* Notification of change in rendering attributes
*/
void (*part_changed) (PangoRenderer *renderer,
PangoRenderPart part);
/* Paired around drawing operations
*/
void (*begin) (PangoRenderer *renderer);
void (*end) (PangoRenderer *renderer);
/* Hooks into the details of layout rendering
*/
void (*prepare_run) (PangoRenderer *renderer,
PangoLayoutRun *run);
/* All of the following have default implementations
* and take as coordinates user coordinates in Pango units
*/
void (*draw_glyph_item) (PangoRenderer *renderer,
const char *text,
PangoGlyphItem *glyph_item,
int x,
int y);
/*< private >*/
/* Padding for future expansion */
void (*_pango_reserved2) (void);
void (*_pango_reserved3) (void);
void (*_pango_reserved4) (void);
};
GType pango_renderer_get_type (void) G_GNUC_CONST;
void pango_renderer_draw_layout (PangoRenderer *renderer,
PangoLayout *layout,
int x,
int y);
void pango_renderer_draw_layout_line (PangoRenderer *renderer,
PangoLayoutLine *line,
int x,
int y);
void pango_renderer_draw_glyphs (PangoRenderer *renderer,
PangoFont *font,
PangoGlyphString *glyphs,
int x,
int y);
void pango_renderer_draw_glyph_item (PangoRenderer *renderer,
const char *text,
PangoGlyphItem *glyph_item,
int x,
int y);
void pango_renderer_draw_rectangle (PangoRenderer *renderer,
PangoRenderPart part,
int x,
int y,
int width,
int height);
void pango_renderer_draw_error_underline (PangoRenderer *renderer,
int x,
int y,
int width,
int height);
void pango_renderer_draw_trapezoid (PangoRenderer *renderer,
PangoRenderPart part,
double y1_,
double x11,
double x21,
double y2,
double x12,
double x22);
void pango_renderer_draw_glyph (PangoRenderer *renderer,
PangoFont *font,
PangoGlyph glyph,
double x,
double y);
void pango_renderer_activate (PangoRenderer *renderer);
void pango_renderer_deactivate (PangoRenderer *renderer);
void pango_renderer_part_changed (PangoRenderer *renderer,
PangoRenderPart part);
void pango_renderer_set_color (PangoRenderer *renderer,
PangoRenderPart part,
const PangoColor *color);
PangoColor *pango_renderer_get_color (PangoRenderer *renderer,
PangoRenderPart part);
void pango_renderer_set_alpha (PangoRenderer *renderer,
PangoRenderPart part,
guint16 alpha);
guint16 pango_renderer_get_alpha (PangoRenderer *renderer,
PangoRenderPart part);
void pango_renderer_set_matrix (PangoRenderer *renderer,
const PangoMatrix *matrix);
const PangoMatrix *pango_renderer_get_matrix (PangoRenderer *renderer);
PangoLayout *pango_renderer_get_layout (PangoRenderer *renderer);
PangoLayoutLine *pango_renderer_get_layout_line (PangoRenderer *renderer);
G_END_DECLS
#endif /* __PANGO_RENDERER_H_ */
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