blob: 99dad2be43b26c807ed50f0f11082b05a6a0fa0a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/gfx/path.h"
#include <gdk/gdk.h>
#include "base/command_line.h"
#include "base/memory/scoped_ptr.h"
namespace gfx {
GdkRegion* Path::CreateNativeRegion() const {
int point_count = getPoints(NULL, 0);
if (point_count <= 1) {
// NOTE: ideally this would return gdk_empty_region, but that returns a
// region with nothing in it.
return NULL;
}
scoped_ptr<SkPoint[]> points(new SkPoint[point_count]);
getPoints(points.get(), point_count);
scoped_ptr<GdkPoint[]> gdk_points(new GdkPoint[point_count]);
for (int i = 0; i < point_count; ++i) {
gdk_points[i].x = SkScalarRound(points[i].fX);
gdk_points[i].y = SkScalarRound(points[i].fY);
}
return gdk_region_polygon(gdk_points.get(), point_count, GDK_EVEN_ODD_RULE);
}
// static
NativeRegion Path::IntersectRegions(NativeRegion r1, NativeRegion r2) {
GdkRegion* copy = gdk_region_copy(r1);
gdk_region_intersect(copy, r2);
return copy;
}
// static
NativeRegion Path::CombineRegions(NativeRegion r1, NativeRegion r2) {
GdkRegion* copy = gdk_region_copy(r1);
gdk_region_union(copy, r2);
return copy;
}
// static
NativeRegion Path::SubtractRegion(NativeRegion r1, NativeRegion r2) {
GdkRegion* copy = gdk_region_copy(r1);
gdk_region_subtract(copy, r2);
return copy;
}
} // namespace gfx
|
