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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "gfx/path.h" | |
6 | |
7 #include <gdk/gdk.h> | |
8 | |
9 #include "base/scoped_ptr.h" | |
10 #include "base/command_line.h" | |
11 | |
12 namespace gfx { | |
13 | |
14 GdkRegion* Path::CreateNativeRegion() const { | |
15 int point_count = getPoints(NULL, 0); | |
16 if (point_count <= 1) { | |
17 // NOTE: ideally this would return gdk_empty_region, but that returns a | |
18 // region with nothing in it. | |
19 return NULL; | |
20 } | |
21 | |
22 scoped_array<SkPoint> points(new SkPoint[point_count]); | |
23 getPoints(points.get(), point_count); | |
24 | |
25 scoped_array<GdkPoint> gdk_points(new GdkPoint[point_count]); | |
26 for (int i = 0; i < point_count; ++i) { | |
27 gdk_points[i].x = SkScalarRound(points[i].fX); | |
28 gdk_points[i].y = SkScalarRound(points[i].fY); | |
29 } | |
30 | |
31 return gdk_region_polygon(gdk_points.get(), point_count, GDK_EVEN_ODD_RULE); | |
32 } | |
33 | |
34 // static | |
35 NativeRegion Path::IntersectRegions(NativeRegion r1, NativeRegion r2) { | |
36 GdkRegion* copy = gdk_region_copy(r1); | |
37 gdk_region_intersect(copy, r2); | |
38 return copy; | |
39 } | |
40 | |
41 // static | |
42 NativeRegion Path::CombineRegions(NativeRegion r1, NativeRegion r2) { | |
43 GdkRegion* copy = gdk_region_copy(r1); | |
44 gdk_region_union(copy, r2); | |
45 return copy; | |
46 } | |
47 | |
48 // static | |
49 NativeRegion Path::SubtractRegion(NativeRegion r1, NativeRegion r2) { | |
50 GdkRegion* copy = gdk_region_copy(r1); | |
51 gdk_region_subtract(copy, r2); | |
52 return copy; | |
53 } | |
54 | |
55 } // namespace gfx | |
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