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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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>
*/
#ifndef CAIRO_CLIP_PRIVATE_H
#define CAIRO_CLIP_PRIVATE_H
#include "cairo-path-fixed-private.h"
enum _cairo_clip_mode {
CAIRO_CLIP_MODE_PATH,
CAIRO_CLIP_MODE_REGION,
CAIRO_CLIP_MODE_MASK
};
struct _cairo_clip_path {
unsigned int ref_count;
cairo_path_fixed_t path;
cairo_fill_rule_t fill_rule;
double tolerance;
cairo_clip_path_t *prev;
};
struct _cairo_clip {
cairo_clip_mode_t mode;
/*
* Mask-based clipping for cases where the backend
* clipping isn't sufficiently able.
*
* The rectangle here represents the
* portion of the destination surface that this
* clip surface maps to, it does not
* represent the extents of the clip region or
* clip paths
*/
cairo_surface_t *surface;
cairo_rectangle_t surface_rect;
/*
* Surface clip serial number to store
* in the surface when this clip is set
*/
unsigned int serial;
/*
* A clip region that can be placed in the surface
*/
pixman_region16_t *region;
/*
* If the surface supports path clipping, we store the list of
* clipping paths that has been set here as a linked list.
*/
cairo_clip_path_t *path;
};
cairo_private void
_cairo_clip_init (cairo_clip_t *clip, cairo_surface_t *target);
cairo_private void
_cairo_clip_fini (cairo_clip_t *clip);
cairo_private void
_cairo_clip_init_copy (cairo_clip_t *clip, cairo_clip_t *other);
cairo_private cairo_status_t
_cairo_clip_reset (cairo_clip_t *clip);
cairo_private cairo_status_t
_cairo_clip_clip (cairo_clip_t *clip,
cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_surface_t *target);
cairo_private cairo_status_t
_cairo_clip_intersect_to_rectangle (cairo_clip_t *clip,
cairo_rectangle_t *rectangle);
cairo_private cairo_status_t
_cairo_clip_intersect_to_region (cairo_clip_t *clip,
pixman_region16_t *region);
cairo_private cairo_status_t
_cairo_clip_combine_to_surface (cairo_clip_t *clip,
cairo_operator_t operator,
cairo_surface_t *dst,
int dst_x,
int dst_y,
const cairo_rectangle_t *extents);
#endif /* CAIRO_CLIP_PRIVATE_H */
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