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_win.h" 6 7 #include "base/memory/scoped_ptr.h" 8 #include "ui/gfx/path.h" 9 10 namespace gfx { 11 12 HRGN CreateHRGNFromSkPath(const SkPath& path) { 13 int point_count = path.getPoints(NULL, 0); 14 scoped_ptr<SkPoint[]> points(new SkPoint[point_count]); 15 path.getPoints(points.get(), point_count); 16 scoped_ptr<POINT[]> windows_points(new POINT[point_count]); 17 for (int i = 0; i < point_count; ++i) { 18 windows_points[i].x = SkScalarRound(points[i].fX); 19 windows_points[i].y = SkScalarRound(points[i].fY); 20 } 21 22 return ::CreatePolygonRgn(windows_points.get(), point_count, ALTERNATE); 23 } 24 25 // See path_aura.cc for Aura definition of these methods: 26 #if !defined(USE_AURA) 27 28 NativeRegion Path::CreateNativeRegion() const { 29 return CreateHRGNFromSkPath(*this); 30 } 31 32 // static 33 NativeRegion Path::IntersectRegions(NativeRegion r1, NativeRegion r2) { 34 HRGN dest = CreateRectRgn(0, 0, 1, 1); 35 CombineRgn(dest, r1, r2, RGN_AND); 36 return dest; 37 } 38 39 // static 40 NativeRegion Path::CombineRegions(NativeRegion r1, NativeRegion r2) { 41 HRGN dest = CreateRectRgn(0, 0, 1, 1); 42 CombineRgn(dest, r1, r2, RGN_OR); 43 return dest; 44 } 45 46 // static 47 NativeRegion Path::SubtractRegion(NativeRegion r1, NativeRegion r2) { 48 HRGN dest = CreateRectRgn(0, 0, 1, 1); 49 CombineRgn(dest, r1, r2, RGN_DIFF); 50 return dest; 51 } 52 53 #endif 54 55 } // namespace gfx 56
