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 cairo_shadow_t shadow;
76 struct _cairo_gstate *next;
80 cairo_private cairo_status_t
81 _cairo_gstate_init (cairo_gstate_t *gstate,
82 cairo_surface_t *target);
85 _cairo_gstate_fini (cairo_gstate_t *gstate);
87 cairo_private cairo_status_t
88 _cairo_gstate_save (cairo_gstate_t **gstate, cairo_gstate_t **freelist);
90 cairo_private cairo_status_t
91 _cairo_gstate_restore (cairo_gstate_t **gstate, cairo_gstate_t **freelist);
93 cairo_private cairo_bool_t
94 _cairo_gstate_is_group (cairo_gstate_t *gstate);
96 cairo_private cairo_status_t
97 _cairo_gstate_redirect_target (cairo_gstate_t *gstate, cairo_surface_t *child);
99 cairo_private cairo_surface_t *
100 _cairo_gstate_get_target (cairo_gstate_t *gstate);
102 cairo_private cairo_surface_t *
103 _cairo_gstate_get_original_target (cairo_gstate_t *gstate);
105 cairo_private cairo_clip_t *
106 _cairo_gstate_get_clip (cairo_gstate_t *gstate);
108 cairo_private cairo_status_t
109 _cairo_gstate_set_source (cairo_gstate_t *gstate, cairo_pattern_t *source);
111 cairo_private cairo_pattern_t *
112 _cairo_gstate_get_source (cairo_gstate_t *gstate);
114 cairo_private cairo_status_t
115 _cairo_gstate_set_operator (cairo_gstate_t *gstate, cairo_operator_t op);
117 cairo_private cairo_operator_t
118 _cairo_gstate_get_operator (cairo_gstate_t *gstate);
120 cairo_private cairo_status_t
121 _cairo_gstate_set_opacity (cairo_gstate_t *gstate, double opacity);
124 _cairo_gstate_get_opacity (cairo_gstate_t *gstate);
126 cairo_private cairo_status_t
127 _cairo_gstate_set_tolerance (cairo_gstate_t *gstate, double tolerance);
130 _cairo_gstate_get_tolerance (cairo_gstate_t *gstate);
132 cairo_private cairo_status_t
133 _cairo_gstate_set_fill_rule (cairo_gstate_t *gstate, cairo_fill_rule_t fill_rule);
135 cairo_private cairo_fill_rule_t
136 _cairo_gstate_get_fill_rule (cairo_gstate_t *gstate);
138 cairo_private cairo_status_t
139 _cairo_gstate_set_line_width (cairo_gstate_t *gstate, double width);
142 _cairo_gstate_get_line_width (cairo_gstate_t *gstate);
144 cairo_private cairo_status_t
145 _cairo_gstate_set_line_cap (cairo_gstate_t *gstate, cairo_line_cap_t line_cap);
147 cairo_private cairo_line_cap_t
148 _cairo_gstate_get_line_cap (cairo_gstate_t *gstate);
150 cairo_private cairo_status_t
151 _cairo_gstate_set_line_join (cairo_gstate_t *gstate, cairo_line_join_t line_join);
153 cairo_private cairo_line_join_t
154 _cairo_gstate_get_line_join (cairo_gstate_t *gstate);
156 cairo_private cairo_status_t
157 _cairo_gstate_set_dash (cairo_gstate_t *gstate, const double *dash, int num_dashes, double offset);
160 _cairo_gstate_get_dash (cairo_gstate_t *gstate, double *dash, int *num_dashes, double *offset);
162 cairo_private cairo_status_t
163 _cairo_gstate_set_miter_limit (cairo_gstate_t *gstate, double limit);
166 _cairo_gstate_get_miter_limit (cairo_gstate_t *gstate);
169 _cairo_gstate_get_matrix (cairo_gstate_t *gstate, cairo_matrix_t *matrix);
171 cairo_private cairo_status_t
172 _cairo_gstate_translate (cairo_gstate_t *gstate, double tx, double ty);
174 cairo_private cairo_status_t
175 _cairo_gstate_scale (cairo_gstate_t *gstate, double sx, double sy);
177 cairo_private cairo_status_t
178 _cairo_gstate_rotate (cairo_gstate_t *gstate, double angle);
180 cairo_private cairo_status_t
181 _cairo_gstate_transform (cairo_gstate_t *gstate,
182 const cairo_matrix_t *matrix);
184 cairo_private cairo_status_t
185 _cairo_gstate_set_matrix (cairo_gstate_t *gstate,
186 const cairo_matrix_t *matrix);
189 _cairo_gstate_identity_matrix (cairo_gstate_t *gstate);
192 _cairo_gstate_user_to_device (cairo_gstate_t *gstate, double *x, double *y);
195 _cairo_gstate_user_to_device_distance (cairo_gstate_t *gstate, double *dx, double *dy);
198 _cairo_gstate_device_to_user (cairo_gstate_t *gstate, double *x, double *y);
201 _cairo_gstate_device_to_user_distance (cairo_gstate_t *gstate, double *dx, double *dy);
204 _do_cairo_gstate_user_to_backend (cairo_gstate_t *gstate, double *x, double *y);
207 _cairo_gstate_user_to_backend (cairo_gstate_t *gstate, double *x, double *y)
209 if (! gstate->is_identity)
210 _do_cairo_gstate_user_to_backend (gstate, x, y);
214 _do_cairo_gstate_user_to_backend_distance (cairo_gstate_t *gstate, double *x, double *y);
217 _cairo_gstate_user_to_backend_distance (cairo_gstate_t *gstate, double *x, double *y)
219 if (! gstate->is_identity)
220 _do_cairo_gstate_user_to_backend_distance (gstate, x, y);
224 _do_cairo_gstate_backend_to_user (cairo_gstate_t *gstate, double *x, double *y);
227 _cairo_gstate_backend_to_user (cairo_gstate_t *gstate, double *x, double *y)
229 if (! gstate->is_identity)
230 _do_cairo_gstate_backend_to_user (gstate, x, y);
234 _do_cairo_gstate_backend_to_user_distance (cairo_gstate_t *gstate, double *x, double *y);
237 _cairo_gstate_backend_to_user_distance (cairo_gstate_t *gstate, double *x, double *y)
239 if (! gstate->is_identity)
240 _do_cairo_gstate_backend_to_user_distance (gstate, x, y);
244 _cairo_gstate_backend_to_user_rectangle (cairo_gstate_t *gstate,
245 double *x1, double *y1,
246 double *x2, double *y2,
247 cairo_bool_t *is_tight);
250 _cairo_gstate_path_extents (cairo_gstate_t *gstate,
251 cairo_path_fixed_t *path,
252 double *x1, double *y1,
253 double *x2, double *y2);
255 cairo_private cairo_status_t
256 _cairo_gstate_paint (cairo_gstate_t *gstate);
258 cairo_private cairo_status_t
259 _cairo_gstate_mask (cairo_gstate_t *gstate,
260 cairo_pattern_t *mask);
262 cairo_private cairo_status_t
263 _cairo_gstate_stroke (cairo_gstate_t *gstate, cairo_path_fixed_t *path);
265 cairo_private cairo_status_t
266 _cairo_gstate_fill (cairo_gstate_t *gstate, cairo_path_fixed_t *path);
268 cairo_private cairo_status_t
269 _cairo_gstate_copy_page (cairo_gstate_t *gstate);
271 cairo_private cairo_status_t
272 _cairo_gstate_show_page (cairo_gstate_t *gstate);
274 cairo_private cairo_status_t
275 _cairo_gstate_stroke_extents (cairo_gstate_t *gstate,
276 cairo_path_fixed_t *path,
277 double *x1, double *y1,
278 double *x2, double *y2);
280 cairo_private cairo_status_t
281 _cairo_gstate_fill_extents (cairo_gstate_t *gstate,
282 cairo_path_fixed_t *path,
283 double *x1, double *y1,
284 double *x2, double *y2);
286 cairo_private cairo_status_t
287 _cairo_gstate_in_stroke (cairo_gstate_t *gstate,
288 cairo_path_fixed_t *path,
291 cairo_bool_t *inside_ret);
293 cairo_private cairo_bool_t
294 _cairo_gstate_in_fill (cairo_gstate_t *gstate,
295 cairo_path_fixed_t *path,
299 cairo_private cairo_bool_t
300 _cairo_gstate_in_clip (cairo_gstate_t *gstate,
304 cairo_private cairo_status_t
305 _cairo_gstate_clip (cairo_gstate_t *gstate, cairo_path_fixed_t *path);
307 cairo_private cairo_status_t
308 _cairo_gstate_reset_clip (cairo_gstate_t *gstate);
310 cairo_private cairo_bool_t
311 _cairo_gstate_clip_extents (cairo_gstate_t *gstate,
317 cairo_private cairo_rectangle_list_t*
318 _cairo_gstate_copy_clip_rectangle_list (cairo_gstate_t *gstate);
320 cairo_private cairo_status_t
321 _cairo_gstate_show_surface (cairo_gstate_t *gstate,
322 cairo_surface_t *surface,
328 cairo_private cairo_status_t
329 _cairo_gstate_set_font_size (cairo_gstate_t *gstate,
333 _cairo_gstate_get_font_matrix (cairo_gstate_t *gstate,
334 cairo_matrix_t *matrix);
336 cairo_private cairo_status_t
337 _cairo_gstate_set_font_matrix (cairo_gstate_t *gstate,
338 const cairo_matrix_t *matrix);
341 _cairo_gstate_get_font_options (cairo_gstate_t *gstate,
342 cairo_font_options_t *options);
345 _cairo_gstate_set_font_options (cairo_gstate_t *gstate,
346 const cairo_font_options_t *options);
348 cairo_private cairo_status_t
349 _cairo_gstate_get_font_face (cairo_gstate_t *gstate,
350 cairo_font_face_t **font_face);
352 cairo_private cairo_status_t
353 _cairo_gstate_get_scaled_font (cairo_gstate_t *gstate,
354 cairo_scaled_font_t **scaled_font);
356 cairo_private cairo_status_t
357 _cairo_gstate_get_font_extents (cairo_gstate_t *gstate,
358 cairo_font_extents_t *extents);
360 cairo_private cairo_status_t
361 _cairo_gstate_set_font_face (cairo_gstate_t *gstate,
362 cairo_font_face_t *font_face);
364 cairo_private cairo_status_t
365 _cairo_gstate_glyph_extents (cairo_gstate_t *gstate,
366 const cairo_glyph_t *glyphs,
368 cairo_text_extents_t *extents);
370 cairo_private cairo_status_t
371 _cairo_gstate_show_text_glyphs (cairo_gstate_t *gstate,
372 const cairo_glyph_t *glyphs,
374 cairo_glyph_text_info_t *info);
376 cairo_private cairo_status_t
377 _cairo_gstate_glyph_path (cairo_gstate_t *gstate,
378 const cairo_glyph_t *glyphs,
380 cairo_path_fixed_t *path);
382 cairo_private cairo_status_t
383 _cairo_gstate_set_antialias (cairo_gstate_t *gstate,
384 cairo_antialias_t antialias);
386 cairo_private cairo_antialias_t
387 _cairo_gstate_get_antialias (cairo_gstate_t *gstate);
389 cairo_private cairo_status_t
390 _cairo_gstate_set_shadow (cairo_gstate_t *gstate, cairo_shadow_type_t shadow);
392 cairo_private cairo_status_t
393 _cairo_gstate_set_shadow_offset (cairo_gstate_t *gstate, double x_offset,
396 cairo_private cairo_status_t
397 _cairo_gstate_set_shadow_rgba (cairo_gstate_t *gstate, double r, double g,
400 cairo_private cairo_status_t
401 _cairo_gstate_set_shadow_blur (cairo_gstate_t *gstate, double x_blur,
405 _cairo_gstate_set_draw_shadow_only (cairo_gstate_t *gstate,
406 cairo_bool_t draw_shadow_only);
409 _cairo_gstate_shadow_enable_cache (cairo_gstate_t *gstate, cairo_bool_t enable);
412 _cairo_gstate_set_path_is_inset_shadow_with_spread (cairo_gstate_t *gstate,
413 cairo_bool_t is_spread_path);
415 #endif /* CAIRO_GSTATE_PRIVATE_H */