platform_device.cc revision 424c4d7b64af9d0d8fd9624f381f469654d5e3d2
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 "base/logging.h" 6#include "skia/ext/platform_device.h" 7 8#include "third_party/skia/include/core/SkMetaData.h" 9 10namespace skia { 11 12namespace { 13 14const char* kDevicePlatformBehaviour = "CrDevicePlatformBehaviour"; 15const char* kDraftModeKey = "CrDraftMode"; 16 17#if defined(OS_MACOSX) || defined(OS_WIN) 18const char* kIsPreviewMetafileKey = "CrIsPreviewMetafile"; 19#endif 20 21void SetBoolMetaData(const SkCanvas& canvas, const char* key, bool value) { 22 SkMetaData& meta = skia::getMetaData(canvas); 23 meta.setBool(key, value); 24} 25 26bool GetBoolMetaData(const SkCanvas& canvas, const char* key) { 27 bool value; 28 SkMetaData& meta = skia::getMetaData(canvas); 29 if (!meta.findBool(key, &value)) 30 value = false; 31 return value; 32} 33 34} // namespace 35 36void SetPlatformDevice(SkBaseDevice* device, PlatformDevice* platform_behaviour) { 37 SkMetaData& meta_data = device->getMetaData(); 38 meta_data.setPtr(kDevicePlatformBehaviour, platform_behaviour); 39} 40 41PlatformDevice* GetPlatformDevice(SkBaseDevice* device) { 42 if (device) { 43 SkMetaData& meta_data = device->getMetaData(); 44 PlatformDevice* device_behaviour = NULL; 45 if (meta_data.findPtr(kDevicePlatformBehaviour, 46 reinterpret_cast<void**>(&device_behaviour))) 47 return device_behaviour; 48 } 49 return NULL; 50} 51 52SkMetaData& getMetaData(const SkCanvas& canvas) { 53 SkBaseDevice* device = canvas.getDevice(); 54 DCHECK(device != NULL); 55 return device->getMetaData(); 56} 57 58void SetIsDraftMode(const SkCanvas& canvas, bool draft_mode) { 59 SetBoolMetaData(canvas, kDraftModeKey, draft_mode); 60} 61 62bool IsDraftMode(const SkCanvas& canvas) { 63 return GetBoolMetaData(canvas, kDraftModeKey); 64} 65 66#if defined(OS_MACOSX) || defined(OS_WIN) 67void SetIsPreviewMetafile(const SkCanvas& canvas, bool is_preview) { 68 SetBoolMetaData(canvas, kIsPreviewMetafileKey, is_preview); 69} 70 71bool IsPreviewMetafile(const SkCanvas& canvas) { 72 return GetBoolMetaData(canvas, kIsPreviewMetafileKey); 73} 74#endif 75 76bool PlatformDevice::SupportsPlatformPaint() { 77 return true; 78} 79 80} // namespace skia 81