/* cairo - a vector graphics library with display and print output * * Copyright © 2005 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it either under the terms of the GNU Lesser General Public * License version 2.1 as published by the Free Software Foundation * (the "LGPL") or, at your option, under the terms of the Mozilla * Public License Version 1.1 (the "MPL"). If you do not alter this * notice, a recipient may use your version of this file under either * the MPL or the LGPL. * * You should have received a copy of the LGPL along with this library * in the file COPYING-LGPL-2.1; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA * You should have received a copy of the MPL along with this library * in the file COPYING-MPL-1.1 * * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY * OF ANY KIND, either express or implied. See the LGPL or the MPL for * the specific language governing rights and limitations. * * The Original Code is the cairo graphics library. * * The Initial Developer of the Original Code is Red Hat, Inc. * * Contributor(s): * Kristian Høgsberg <krh@redhat.com> * Chris Wilson <chris@chris-wilson.co.uk> */ #ifndef CAIRO_CLIP_PRIVATE_H #define CAIRO_CLIP_PRIVATE_H #include "cairo-types-private.h" #include "cairo-boxes-private.h" #include "cairo-error-private.h" #include "cairo-compiler-private.h" #include "cairo-error-private.h" #include "cairo-path-fixed-private.h" #include "cairo-reference-count-private.h" extern const cairo_private cairo_rectangle_list_t _cairo_rectangles_nil; struct _cairo_clip_path { cairo_reference_count_t ref_count; cairo_path_fixed_t path; cairo_fill_rule_t fill_rule; double tolerance; cairo_antialias_t antialias; cairo_clip_path_t *prev; }; struct _cairo_clip { cairo_rectangle_int_t extents; cairo_clip_path_t *path; cairo_box_t *boxes; int num_boxes; cairo_region_t *region; cairo_bool_t is_region; cairo_box_t embedded_box; }; cairo_private cairo_clip_t * _cairo_clip_create (void); cairo_private cairo_clip_path_t * _cairo_clip_path_reference (cairo_clip_path_t *clip_path); cairo_private void _cairo_clip_path_destroy (cairo_clip_path_t *clip_path); cairo_private void _cairo_clip_destroy (cairo_clip_t *clip); cairo_private extern const cairo_clip_t __cairo_clip_all; static inline cairo_bool_t _cairo_clip_is_all_clipped(const cairo_clip_t *clip) { return clip == &__cairo_clip_all; } static inline cairo_clip_t * _cairo_clip_set_all_clipped (cairo_clip_t *clip) { _cairo_clip_destroy (clip); return (cairo_clip_t *) &__cairo_clip_all; } cairo_private cairo_clip_t * _cairo_clip_copy (const cairo_clip_t *clip); cairo_private cairo_clip_t * _cairo_clip_copy_region (const cairo_clip_t *clip); cairo_private cairo_clip_t * _cairo_clip_copy_path (const cairo_clip_t *clip); cairo_private cairo_clip_t * _cairo_clip_translate (cairo_clip_t *clip, int tx, int ty); cairo_private cairo_clip_t * _cairo_clip_transform (cairo_clip_t *clip, const cairo_matrix_t *m); cairo_private cairo_clip_t * _cairo_clip_copy_with_translation (const cairo_clip_t *clip, int tx, int ty); cairo_private cairo_bool_t _cairo_clip_equal (const cairo_clip_t *clip_a, const cairo_clip_t *clip_b); cairo_private cairo_clip_t * _cairo_clip_intersect_rectangle (cairo_clip_t *clip, const cairo_rectangle_int_t *rectangle); static inline cairo_clip_t * _cairo_clip_copy_intersect_rectangle (const cairo_clip_t *clip, const cairo_rectangle_int_t *r) { return _cairo_clip_intersect_rectangle (_cairo_clip_copy (clip), r); } cairo_private cairo_clip_t * _cairo_clip_intersect_clip (cairo_clip_t *clip, const cairo_clip_t *other); static inline cairo_clip_t * _cairo_clip_copy_intersect_clip (const cairo_clip_t *clip, const cairo_clip_t *other) { return _cairo_clip_intersect_clip (_cairo_clip_copy (clip), other); } cairo_private cairo_clip_t * _cairo_clip_intersect_box (cairo_clip_t *clip, const cairo_box_t *box); cairo_private cairo_clip_t * _cairo_clip_intersect_boxes (cairo_clip_t *clip, const cairo_boxes_t *boxes); cairo_private cairo_clip_t * _cairo_clip_intersect_rectilinear_path (cairo_clip_t *clip, const cairo_path_fixed_t *path, cairo_fill_rule_t fill_rule, cairo_antialias_t antialias); cairo_private cairo_clip_t * _cairo_clip_intersect_path (cairo_clip_t *clip, const cairo_path_fixed_t *path, cairo_fill_rule_t fill_rule, double tolerance, cairo_antialias_t antialias); cairo_private const cairo_rectangle_int_t * _cairo_clip_get_extents (const cairo_clip_t *clip); cairo_private cairo_surface_t * _cairo_clip_get_surface (const cairo_clip_t *clip, cairo_surface_t *dst, int *tx, int *ty); cairo_private cairo_surface_t * _cairo_clip_get_image (const cairo_clip_t *clip, cairo_surface_t *target, const cairo_rectangle_int_t *extents); cairo_private cairo_status_t _cairo_clip_combine_with_surface (const cairo_clip_t *clip, cairo_surface_t *dst, int dst_x, int dst_y); static inline void _cairo_clip_steal_boxes (cairo_clip_t *clip, cairo_boxes_t *boxes) { _cairo_boxes_init_for_array (boxes, clip->boxes, clip->num_boxes); clip->boxes = NULL; clip->num_boxes = 0; } static inline void _cairo_clip_unsteal_boxes (cairo_clip_t *clip, cairo_boxes_t *boxes) { clip->boxes = boxes->chunks.base; clip->num_boxes = boxes->num_boxes; } cairo_private cairo_clip_t * _cairo_clip_from_boxes (const cairo_boxes_t *boxes); cairo_private cairo_region_t * _cairo_clip_get_region (const cairo_clip_t *clip); cairo_private cairo_bool_t _cairo_clip_is_region (const cairo_clip_t *clip); cairo_private cairo_clip_t * _cairo_clip_reduce_to_rectangle (const cairo_clip_t *clip, const cairo_rectangle_int_t *r); cairo_private cairo_clip_t * _cairo_clip_reduce_for_composite (const cairo_clip_t *clip, cairo_composite_rectangles_t *extents); cairo_private cairo_bool_t _cairo_clip_contains_rectangle (const cairo_clip_t *clip, const cairo_rectangle_int_t *rect); cairo_private cairo_bool_t _cairo_clip_contains_box (const cairo_clip_t *clip, const cairo_box_t *box); cairo_private cairo_bool_t _cairo_clip_contains_extents (const cairo_clip_t *clip, const cairo_composite_rectangles_t *extents); cairo_private cairo_rectangle_list_t* _cairo_clip_copy_rectangle_list (cairo_clip_t *clip, cairo_gstate_t *gstate); cairo_private cairo_rectangle_list_t * _cairo_rectangle_list_create_in_error (cairo_status_t status); cairo_private cairo_bool_t _cairo_clip_is_polygon (const cairo_clip_t *clip); cairo_private cairo_int_status_t _cairo_clip_get_polygon (const cairo_clip_t *clip, cairo_polygon_t *polygon, cairo_fill_rule_t *fill_rule, cairo_antialias_t *antialias); #endif /* CAIRO_CLIP_PRIVATE_H */