1 // Copyright (c) 2011 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 "ui/gfx/path.h" 6 7 #include <gdk/gdk.h> 8 9 #include "base/command_line.h" 10 #include "base/memory/scoped_ptr.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_ptr<SkPoint[]> points(new SkPoint[point_count]); 23 getPoints(points.get(), point_count); 24 25 scoped_ptr<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 56
