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// 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 "base/logging.h"
#include "skia/ext/platform_device.h"
#include "third_party/skia/include/core/SkMetaData.h"
namespace skia {
namespace {
const char* kDevicePlatformBehaviour = "CrDevicePlatformBehaviour";
const char* kDraftModeKey = "CrDraftMode";
#if defined(OS_MACOSX) || defined(OS_WIN)
const char* kIsPreviewMetafileKey = "CrIsPreviewMetafile";
#endif
void SetBoolMetaData(const SkCanvas& canvas, const char* key, bool value) {
SkMetaData& meta = skia::getMetaData(canvas);
meta.setBool(key, value);
}
bool GetBoolMetaData(const SkCanvas& canvas, const char* key) {
bool value;
SkMetaData& meta = skia::getMetaData(canvas);
if (!meta.findBool(key, &value))
value = false;
return value;
}
} // namespace
void SetPlatformDevice(SkDevice* device, PlatformDevice* platform_behaviour) {
SkMetaData& meta_data = device->getMetaData();
meta_data.setPtr(kDevicePlatformBehaviour, platform_behaviour);
}
PlatformDevice* GetPlatformDevice(SkDevice* device) {
SkMetaData& meta_data = device->getMetaData();
PlatformDevice* device_behaviour = NULL;
if (meta_data.findPtr(kDevicePlatformBehaviour,
reinterpret_cast<void**>(&device_behaviour)))
return device_behaviour;
return NULL;
}
SkMetaData& getMetaData(const SkCanvas& canvas) {
SkDevice* device = canvas.getDevice();
DCHECK(device != NULL);
return device->getMetaData();
}
void SetIsDraftMode(const SkCanvas& canvas, bool draft_mode) {
SetBoolMetaData(canvas, kDraftModeKey, draft_mode);
}
bool IsDraftMode(const SkCanvas& canvas) {
return GetBoolMetaData(canvas, kDraftModeKey);
}
#if defined(OS_MACOSX) || defined(OS_WIN)
void SetIsPreviewMetafile(const SkCanvas& canvas, bool is_preview) {
SetBoolMetaData(canvas, kIsPreviewMetafileKey, is_preview);
}
bool IsPreviewMetafile(const SkCanvas& canvas) {
return GetBoolMetaData(canvas, kIsPreviewMetafileKey);
}
#endif
bool PlatformDevice::IsNativeFontRenderingAllowed() {
return true;
}
bool PlatformDevice::AlphaBlendUsed() const {
return false;
}
} // namespace skia
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