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136 lines
4.4 KiB
C
136 lines
4.4 KiB
C
/* cairo - a vector graphics library with display and print output
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*
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* Copyright © 2005 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it either under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation
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* (the "LGPL") or, at your option, under the terms of the Mozilla
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* Public License Version 1.1 (the "MPL"). If you do not alter this
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* notice, a recipient may use your version of this file under either
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* the MPL or the LGPL.
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*
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* You should have received a copy of the LGPL along with this library
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* in the file COPYING-LGPL-2.1; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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* You should have received a copy of the MPL along with this library
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* in the file COPYING-MPL-1.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
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* OF ANY KIND, either express or implied. See the LGPL or the MPL for
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* the specific language governing rights and limitations.
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*
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* The Original Code is the cairo graphics library.
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*
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* The Initial Developer of the Original Code is Red Hat, Inc.
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*
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* Contributor(s):
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* Kristian Høgsberg <krh@redhat.com>
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*/
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#ifndef CAIRO_CLIP_PRIVATE_H
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#define CAIRO_CLIP_PRIVATE_H
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#include "cairo-types-private.h"
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#include "cairo-compiler-private.h"
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#include "cairo-path-fixed-private.h"
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#include "cairo-reference-count-private.h"
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#include "cairo-region-private.h"
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extern const cairo_private cairo_rectangle_list_t _cairo_rectangles_nil;
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struct _cairo_clip_path {
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cairo_reference_count_t ref_count;
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cairo_path_fixed_t path;
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cairo_fill_rule_t fill_rule;
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double tolerance;
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cairo_antialias_t antialias;
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cairo_clip_path_t *prev;
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};
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struct _cairo_clip {
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cairo_clip_mode_t mode;
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cairo_bool_t all_clipped;
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/*
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* Mask-based clipping for cases where the backend
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* clipping isn't sufficiently able.
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*
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* The rectangle here represents the
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* portion of the destination surface that this
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* clip surface maps to, it does not
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* represent the extents of the clip region or
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* clip paths
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*/
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cairo_surface_t *surface;
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cairo_rectangle_int_t surface_rect;
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/*
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* Surface clip serial number to store
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* in the surface when this clip is set
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*/
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unsigned int serial;
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/*
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* A clip region that can be placed in the surface
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*/
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cairo_region_t region;
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cairo_bool_t has_region;
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/*
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* If the surface supports path clipping, we store the list of
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* clipping paths that has been set here as a linked list.
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*/
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cairo_clip_path_t *path;
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};
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cairo_private void
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_cairo_clip_init (cairo_clip_t *clip, cairo_surface_t *target);
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cairo_private cairo_status_t
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_cairo_clip_init_copy (cairo_clip_t *clip, cairo_clip_t *other);
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cairo_private cairo_status_t
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_cairo_clip_init_deep_copy (cairo_clip_t *clip,
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cairo_clip_t *other,
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cairo_surface_t *target);
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cairo_private void
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_cairo_clip_reset (cairo_clip_t *clip);
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cairo_private cairo_status_t
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_cairo_clip_clip (cairo_clip_t *clip,
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cairo_path_fixed_t *path,
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cairo_fill_rule_t fill_rule,
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double tolerance,
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cairo_antialias_t antialias,
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cairo_surface_t *target);
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cairo_private cairo_status_t
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_cairo_clip_intersect_to_rectangle (cairo_clip_t *clip,
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cairo_rectangle_int_t *rectangle);
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cairo_private cairo_status_t
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_cairo_clip_intersect_to_region (cairo_clip_t *clip,
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cairo_region_t *region);
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cairo_private cairo_status_t
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_cairo_clip_combine_to_surface (cairo_clip_t *clip,
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cairo_operator_t op,
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cairo_surface_t *dst,
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int dst_x,
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int dst_y,
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const cairo_rectangle_int_t *extents);
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cairo_private void
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_cairo_clip_translate (cairo_clip_t *clip,
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cairo_fixed_t tx,
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cairo_fixed_t ty);
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cairo_private cairo_rectangle_list_t*
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_cairo_clip_copy_rectangle_list (cairo_clip_t *clip, cairo_gstate_t *gstate);
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#endif /* CAIRO_CLIP_PRIVATE_H */
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