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/* 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_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 */
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