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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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