| // 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 |