source/libs/cairo/cairo-src/src/cairo-clip-private.h

   1 /* cairo - a vector graphics library with display and print output
   2  *
   3  * Copyright © 2005 Red Hat, Inc.
   4  *
   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.
  12  *
  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
  18  *
  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/
  23  *
  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.
  27  *
  28  * The Original Code is the cairo graphics library.
  29  *
  30  * The Initial Developer of the Original Code is Red Hat, Inc.
  31  *
  32  * Contributor(s):
  33  *      Kristian Høgsberg <krh@redhat.com>
  34  *      Chris Wilson <chris@chris-wilson.co.uk>
  35  */
  36
  37 #ifndef CAIRO_CLIP_PRIVATE_H
  38 #define CAIRO_CLIP_PRIVATE_H
  39
  40 #include "cairo-types-private.h"
  41
  42 #include "cairo-boxes-private.h"
  43 #include "cairo-error-private.h"
  44 #include "cairo-compiler-private.h"
  45 #include "cairo-error-private.h"
  46 #include "cairo-path-fixed-private.h"
  47 #include "cairo-reference-count-private.h"
  48
  49 extern const cairo_private cairo_rectangle_list_t _cairo_rectangles_nil;
  50
  51 struct _cairo_clip_path {
  52     cairo_reference_count_t      ref_count;
  53     cairo_path_fixed_t           path;
  54     cairo_fill_rule_t            fill_rule;
  55     double                       tolerance;
  56     cairo_antialias_t            antialias;
  57     cairo_clip_path_t           *prev;
  58 };
  59
  60 struct _cairo_clip {
  61     cairo_rectangle_int_t extents;
  62     cairo_clip_path_t *path;
  63
  64     cairo_box_t *boxes;
  65     int num_boxes;
  66
  67     cairo_region_t *region;
  68     cairo_bool_t is_region;
  69
  70     cairo_box_t embedded_box;
  71 };
  72
  73 cairo_private cairo_clip_t *
  74 _cairo_clip_create (void);
  75
  76 cairo_private cairo_clip_path_t *
  77 _cairo_clip_path_reference (cairo_clip_path_t *clip_path);
  78
  79 cairo_private void
  80 _cairo_clip_path_destroy (cairo_clip_path_t *clip_path);
  81
  82 cairo_private void
  83 _cairo_clip_destroy (cairo_clip_t *clip);
  84
  85 cairo_private extern const cairo_clip_t __cairo_clip_all;
  86
  87 cairo_private cairo_clip_t *
  88 _cairo_clip_copy (const cairo_clip_t *clip);
  89
  90 cairo_private cairo_clip_t *
  91 _cairo_clip_copy_region (const cairo_clip_t *clip);
  92
  93 cairo_private cairo_clip_t *
  94 _cairo_clip_copy_path (const cairo_clip_t *clip);
  95
  96 cairo_private cairo_clip_t *
  97 _cairo_clip_translate (cairo_clip_t *clip, int tx, int ty);
  98
  99 cairo_private cairo_clip_t *
 100 _cairo_clip_transform (cairo_clip_t *clip, const cairo_matrix_t *m);
 101
 102 cairo_private cairo_clip_t *
 103 _cairo_clip_copy_with_translation (const cairo_clip_t *clip, int tx, int ty);
 104
 105 cairo_private cairo_bool_t
 106 _cairo_clip_equal (const cairo_clip_t *clip_a,
 107                    const cairo_clip_t *clip_b);
 108
 109 cairo_private cairo_clip_t *
 110 _cairo_clip_intersect_rectangle (cairo_clip_t       *clip,
 111                                  const cairo_rectangle_int_t *rectangle);
 112
 113 cairo_private cairo_clip_t *
 114 _cairo_clip_intersect_clip (cairo_clip_t *clip,
 115                             const cairo_clip_t *other);
 116
 117 cairo_private cairo_clip_t *
 118 _cairo_clip_intersect_box (cairo_clip_t       *clip,
 119                            const cairo_box_t *box);
 120
 121 cairo_private cairo_clip_t *
 122 _cairo_clip_intersect_boxes (cairo_clip_t *clip,
 123                              const cairo_boxes_t *boxes);
 124
 125 cairo_private cairo_clip_t *
 126 _cairo_clip_intersect_rectilinear_path (cairo_clip_t       *clip,
 127                                         const cairo_path_fixed_t *path,
 128                                         cairo_fill_rule_t   fill_rule,
 129                                         cairo_antialias_t   antialias);
 130
 131 cairo_private cairo_clip_t *
 132 _cairo_clip_intersect_path (cairo_clip_t       *clip,
 133                             const cairo_path_fixed_t *path,
 134                             cairo_fill_rule_t   fill_rule,
 135                             double              tolerance,
 136                             cairo_antialias_t   antialias);
 137
 138 cairo_private const cairo_rectangle_int_t *
 139 _cairo_clip_get_extents (const cairo_clip_t *clip);
 140
 141 cairo_private cairo_surface_t *
 142 _cairo_clip_get_surface (const cairo_clip_t *clip, cairo_surface_t *dst, int *tx, int *ty);
 143
 144 cairo_private cairo_surface_t *
 145 _cairo_clip_get_image (const cairo_clip_t *clip,
 146                        cairo_surface_t *target,
 147                        const cairo_rectangle_int_t *extents);
 148
 149 cairo_private cairo_status_t
 150 _cairo_clip_combine_with_surface (const cairo_clip_t *clip,
 151                                   cairo_surface_t *dst,
 152                                   int dst_x, int dst_y);
 153
 154 cairo_private cairo_clip_t *
 155 _cairo_clip_from_boxes (const cairo_boxes_t *boxes);
 156
 157 cairo_private cairo_region_t *
 158 _cairo_clip_get_region (const cairo_clip_t *clip);
 159
 160 cairo_private cairo_bool_t
 161 _cairo_clip_is_region (const cairo_clip_t *clip);
 162
 163 cairo_private cairo_clip_t *
 164 _cairo_clip_reduce_to_rectangle (const cairo_clip_t *clip,
 165                                  const cairo_rectangle_int_t *r);
 166
 167 cairo_private cairo_clip_t *
 168 _cairo_clip_reduce_for_composite (const cairo_clip_t *clip,
 169                                   cairo_composite_rectangles_t *extents);
 170
 171 cairo_private cairo_bool_t
 172 _cairo_clip_contains_rectangle (const cairo_clip_t *clip,
 173                                 const cairo_rectangle_int_t *rect);
 174
 175 cairo_private cairo_bool_t
 176 _cairo_clip_contains_box (const cairo_clip_t *clip,
 177                           const cairo_box_t *box);
 178
 179 cairo_private cairo_bool_t
 180 _cairo_clip_contains_extents (const cairo_clip_t *clip,
 181                               const cairo_composite_rectangles_t *extents);
 182
 183 cairo_private cairo_rectangle_list_t*
 184 _cairo_clip_copy_rectangle_list (cairo_clip_t *clip, cairo_gstate_t *gstate);
 185
 186 cairo_private cairo_rectangle_list_t *
 187 _cairo_rectangle_list_create_in_error (cairo_status_t status);
 188
 189 cairo_private cairo_bool_t
 190 _cairo_clip_is_polygon (const cairo_clip_t *clip);
 191
 192 cairo_private cairo_int_status_t
 193 _cairo_clip_get_polygon (const cairo_clip_t *clip,
 194                          cairo_polygon_t *polygon,
 195                          cairo_fill_rule_t *fill_rule,
 196                          cairo_antialias_t *antialias);
 197
 198 #endif /* CAIRO_CLIP_PRIVATE_H */