1 /* cairo - a vector graphics library with display and print output
3 * Copyright © 2005 Red Hat, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it either under the terms of the GNU Lesser General Public
7 * License version 2.1 as published by the Free Software Foundation
8 * (the "LGPL") or, at your option, under the terms of the Mozilla
9 * Public License Version 1.1 (the "MPL"). If you do not alter this
10 * notice, a recipient may use your version of this file under either
11 * the MPL or the LGPL.
13 * You should have received a copy of the LGPL along with this library
14 * in the file COPYING-LGPL-2.1; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
16 * You should have received a copy of the MPL along with this library
17 * in the file COPYING-MPL-1.1
19 * The contents of this file are subject to the Mozilla Public License
20 * Version 1.1 (the "License"); you may not use this file except in
21 * compliance with the License. You may obtain a copy of the License at
22 * http://www.mozilla.org/MPL/
24 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
25 * OF ANY KIND, either express or implied. See the LGPL or the MPL for
26 * the specific language governing rights and limitations.
28 * The Original Code is the cairo graphics library.
30 * The Initial Developer of the Original Code is Red Hat, Inc.
33 * Carl D. Worth <cworth@redhat.com>
36 #ifndef CAIRO_GSTATE_PRIVATE_H
37 #define CAIRO_GSTATE_PRIVATE_H
39 #include "cairo-clip-private.h"
41 struct _cairo_gstate {
46 cairo_antialias_t antialias;
48 cairo_stroke_style_t stroke_style;
50 cairo_fill_rule_t fill_rule;
52 cairo_font_face_t *font_face;
53 cairo_scaled_font_t *scaled_font; /* Specific to the current CTM */
54 cairo_scaled_font_t *previous_scaled_font; /* holdover */
55 cairo_matrix_t font_matrix;
56 cairo_font_options_t font_options;
60 cairo_surface_t *target; /* The target to which all rendering is directed */
61 cairo_surface_t *parent_target; /* The previous target which was receiving rendering */
62 cairo_surface_t *original_target; /* The original target the initial gstate was created with */
64 /* the user is allowed to update the device after we have cached the matrices... */
65 cairo_observer_t device_transform_observer;
68 cairo_matrix_t ctm_inverse;
69 cairo_matrix_t source_ctm_inverse; /* At the time ->source was set */
70 cairo_bool_t is_identity;
72 cairo_pattern_t *source;
74 struct _cairo_gstate *next;
78 cairo_private cairo_status_t
79 _cairo_gstate_init (cairo_gstate_t *gstate,
80 cairo_surface_t *target);
83 _cairo_gstate_fini (cairo_gstate_t *gstate);
85 cairo_private cairo_status_t
86 _cairo_gstate_save (cairo_gstate_t **gstate, cairo_gstate_t **freelist);
88 cairo_private cairo_status_t
89 _cairo_gstate_restore (cairo_gstate_t **gstate, cairo_gstate_t **freelist);
91 cairo_private cairo_bool_t
92 _cairo_gstate_is_group (cairo_gstate_t *gstate);
94 cairo_private cairo_status_t
95 _cairo_gstate_redirect_target (cairo_gstate_t *gstate, cairo_surface_t *child);
97 cairo_private cairo_surface_t *
98 _cairo_gstate_get_target (cairo_gstate_t *gstate);
100 cairo_private cairo_surface_t *
101 _cairo_gstate_get_original_target (cairo_gstate_t *gstate);
103 cairo_private cairo_clip_t *
104 _cairo_gstate_get_clip (cairo_gstate_t *gstate);
106 cairo_private cairo_status_t
107 _cairo_gstate_set_source (cairo_gstate_t *gstate, cairo_pattern_t *source);
109 cairo_private cairo_pattern_t *
110 _cairo_gstate_get_source (cairo_gstate_t *gstate);
112 cairo_private cairo_status_t
113 _cairo_gstate_set_operator (cairo_gstate_t *gstate, cairo_operator_t op);
115 cairo_private cairo_operator_t
116 _cairo_gstate_get_operator (cairo_gstate_t *gstate);
118 cairo_private cairo_status_t
119 _cairo_gstate_set_opacity (cairo_gstate_t *gstate, double opacity);
122 _cairo_gstate_get_opacity (cairo_gstate_t *gstate);
124 cairo_private cairo_status_t
125 _cairo_gstate_set_tolerance (cairo_gstate_t *gstate, double tolerance);
128 _cairo_gstate_get_tolerance (cairo_gstate_t *gstate);
130 cairo_private cairo_status_t
131 _cairo_gstate_set_fill_rule (cairo_gstate_t *gstate, cairo_fill_rule_t fill_rule);
133 cairo_private cairo_fill_rule_t
134 _cairo_gstate_get_fill_rule (cairo_gstate_t *gstate);
136 cairo_private cairo_status_t
137 _cairo_gstate_set_line_width (cairo_gstate_t *gstate, double width);
140 _cairo_gstate_get_line_width (cairo_gstate_t *gstate);
142 cairo_private cairo_status_t
143 _cairo_gstate_set_line_cap (cairo_gstate_t *gstate, cairo_line_cap_t line_cap);
145 cairo_private cairo_line_cap_t
146 _cairo_gstate_get_line_cap (cairo_gstate_t *gstate);
148 cairo_private cairo_status_t
149 _cairo_gstate_set_line_join (cairo_gstate_t *gstate, cairo_line_join_t line_join);
151 cairo_private cairo_line_join_t
152 _cairo_gstate_get_line_join (cairo_gstate_t *gstate);
154 cairo_private cairo_status_t
155 _cairo_gstate_set_dash (cairo_gstate_t *gstate, const double *dash, int num_dashes, double offset);
158 _cairo_gstate_get_dash (cairo_gstate_t *gstate, double *dash, int *num_dashes, double *offset);
160 cairo_private cairo_status_t
161 _cairo_gstate_set_miter_limit (cairo_gstate_t *gstate, double limit);
164 _cairo_gstate_get_miter_limit (cairo_gstate_t *gstate);
167 _cairo_gstate_get_matrix (cairo_gstate_t *gstate, cairo_matrix_t *matrix);
169 cairo_private cairo_status_t
170 _cairo_gstate_translate (cairo_gstate_t *gstate, double tx, double ty);
172 cairo_private cairo_status_t
173 _cairo_gstate_scale (cairo_gstate_t *gstate, double sx, double sy);
175 cairo_private cairo_status_t
176 _cairo_gstate_rotate (cairo_gstate_t *gstate, double angle);
178 cairo_private cairo_status_t
179 _cairo_gstate_transform (cairo_gstate_t *gstate,
180 const cairo_matrix_t *matrix);
182 cairo_private cairo_status_t
183 _cairo_gstate_set_matrix (cairo_gstate_t *gstate,
184 const cairo_matrix_t *matrix);
187 _cairo_gstate_identity_matrix (cairo_gstate_t *gstate);
190 _cairo_gstate_user_to_device (cairo_gstate_t *gstate, double *x, double *y);
193 _cairo_gstate_user_to_device_distance (cairo_gstate_t *gstate, double *dx, double *dy);
196 _cairo_gstate_device_to_user (cairo_gstate_t *gstate, double *x, double *y);
199 _cairo_gstate_device_to_user_distance (cairo_gstate_t *gstate, double *dx, double *dy);
202 _do_cairo_gstate_user_to_backend (cairo_gstate_t *gstate, double *x, double *y);
205 _cairo_gstate_user_to_backend (cairo_gstate_t *gstate, double *x, double *y)
207 if (! gstate->is_identity)
208 _do_cairo_gstate_user_to_backend (gstate, x, y);
212 _do_cairo_gstate_backend_to_user (cairo_gstate_t *gstate, double *x, double *y);
215 _cairo_gstate_backend_to_user (cairo_gstate_t *gstate, double *x, double *y)
217 if (! gstate->is_identity)
218 _do_cairo_gstate_backend_to_user (gstate, x, y);
222 _cairo_gstate_backend_to_user_rectangle (cairo_gstate_t *gstate,
223 double *x1, double *y1,
224 double *x2, double *y2,
225 cairo_bool_t *is_tight);
228 _cairo_gstate_path_extents (cairo_gstate_t *gstate,
229 cairo_path_fixed_t *path,
230 double *x1, double *y1,
231 double *x2, double *y2);
233 cairo_private cairo_status_t
234 _cairo_gstate_paint (cairo_gstate_t *gstate);
236 cairo_private cairo_status_t
237 _cairo_gstate_mask (cairo_gstate_t *gstate,
238 cairo_pattern_t *mask);
240 cairo_private cairo_status_t
241 _cairo_gstate_stroke (cairo_gstate_t *gstate, cairo_path_fixed_t *path);
243 cairo_private cairo_status_t
244 _cairo_gstate_fill (cairo_gstate_t *gstate, cairo_path_fixed_t *path);
246 cairo_private cairo_status_t
247 _cairo_gstate_copy_page (cairo_gstate_t *gstate);
249 cairo_private cairo_status_t
250 _cairo_gstate_show_page (cairo_gstate_t *gstate);
252 cairo_private cairo_status_t
253 _cairo_gstate_stroke_extents (cairo_gstate_t *gstate,
254 cairo_path_fixed_t *path,
255 double *x1, double *y1,
256 double *x2, double *y2);
258 cairo_private cairo_status_t
259 _cairo_gstate_fill_extents (cairo_gstate_t *gstate,
260 cairo_path_fixed_t *path,
261 double *x1, double *y1,
262 double *x2, double *y2);
264 cairo_private cairo_status_t
265 _cairo_gstate_in_stroke (cairo_gstate_t *gstate,
266 cairo_path_fixed_t *path,
269 cairo_bool_t *inside_ret);
271 cairo_private cairo_bool_t
272 _cairo_gstate_in_fill (cairo_gstate_t *gstate,
273 cairo_path_fixed_t *path,
277 cairo_private cairo_bool_t
278 _cairo_gstate_in_clip (cairo_gstate_t *gstate,
282 cairo_private cairo_status_t
283 _cairo_gstate_clip (cairo_gstate_t *gstate, cairo_path_fixed_t *path);
285 cairo_private cairo_status_t
286 _cairo_gstate_reset_clip (cairo_gstate_t *gstate);
288 cairo_private cairo_bool_t
289 _cairo_gstate_clip_extents (cairo_gstate_t *gstate,
295 cairo_private cairo_rectangle_list_t*
296 _cairo_gstate_copy_clip_rectangle_list (cairo_gstate_t *gstate);
298 cairo_private cairo_status_t
299 _cairo_gstate_show_surface (cairo_gstate_t *gstate,
300 cairo_surface_t *surface,
306 cairo_private cairo_status_t
307 _cairo_gstate_set_font_size (cairo_gstate_t *gstate,
311 _cairo_gstate_get_font_matrix (cairo_gstate_t *gstate,
312 cairo_matrix_t *matrix);
314 cairo_private cairo_status_t
315 _cairo_gstate_set_font_matrix (cairo_gstate_t *gstate,
316 const cairo_matrix_t *matrix);
319 _cairo_gstate_get_font_options (cairo_gstate_t *gstate,
320 cairo_font_options_t *options);
323 _cairo_gstate_set_font_options (cairo_gstate_t *gstate,
324 const cairo_font_options_t *options);
326 cairo_private cairo_status_t
327 _cairo_gstate_get_font_face (cairo_gstate_t *gstate,
328 cairo_font_face_t **font_face);
330 cairo_private cairo_status_t
331 _cairo_gstate_get_scaled_font (cairo_gstate_t *gstate,
332 cairo_scaled_font_t **scaled_font);
334 cairo_private cairo_status_t
335 _cairo_gstate_get_font_extents (cairo_gstate_t *gstate,
336 cairo_font_extents_t *extents);
338 cairo_private cairo_status_t
339 _cairo_gstate_set_font_face (cairo_gstate_t *gstate,
340 cairo_font_face_t *font_face);
342 cairo_private cairo_status_t
343 _cairo_gstate_glyph_extents (cairo_gstate_t *gstate,
344 const cairo_glyph_t *glyphs,
346 cairo_text_extents_t *extents);
348 cairo_private cairo_status_t
349 _cairo_gstate_show_text_glyphs (cairo_gstate_t *gstate,
350 const cairo_glyph_t *glyphs,
352 cairo_glyph_text_info_t *info);
354 cairo_private cairo_status_t
355 _cairo_gstate_glyph_path (cairo_gstate_t *gstate,
356 const cairo_glyph_t *glyphs,
358 cairo_path_fixed_t *path);
360 cairo_private cairo_status_t
361 _cairo_gstate_set_antialias (cairo_gstate_t *gstate,
362 cairo_antialias_t antialias);
364 cairo_private cairo_antialias_t
365 _cairo_gstate_get_antialias (cairo_gstate_t *gstate);
367 #endif /* CAIRO_GSTATE_PRIVATE_H */