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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 "base/scoped_ptr.h" | |
8 | |
9 namespace gfx { | |
10 | |
11 HRGN Path::CreateNativeRegion() const { | |
12 int point_count = getPoints(NULL, 0); | |
13 scoped_array<SkPoint> points(new SkPoint[point_count]); | |
14 getPoints(points.get(), point_count); | |
15 scoped_array<POINT> windows_points(new POINT[point_count]); | |
16 for (int i = 0; i < point_count; ++i) { | |
17 windows_points[i].x = SkScalarRound(points[i].fX); | |
18 windows_points[i].y = SkScalarRound(points[i].fY); | |
19 } | |
20 | |
21 return ::CreatePolygonRgn(windows_points.get(), point_count, ALTERNATE); | |
22 } | |
23 | |
24 // static | |
25 NativeRegion Path::IntersectRegions(NativeRegion r1, NativeRegion r2) { | |
26 HRGN dest = CreateRectRgn(0, 0, 1, 1); | |
27 CombineRgn(dest, r1, r2, RGN_AND); | |
28 return dest; | |
29 } | |
30 | |
31 // static | |
32 NativeRegion Path::CombineRegions(NativeRegion r1, NativeRegion r2) { | |
33 HRGN dest = CreateRectRgn(0, 0, 1, 1); | |
34 CombineRgn(dest, r1, r2, RGN_OR); | |
35 return dest; | |
36 } | |
37 | |
38 // static | |
39 NativeRegion Path::SubtractRegion(NativeRegion r1, NativeRegion r2) { | |
40 HRGN dest = CreateRectRgn(0, 0, 1, 1); | |
41 CombineRgn(dest, r1, r2, RGN_DIFF); | |
42 return dest; | |
43 } | |
44 | |
45 } // namespace gfx | |
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