| // Copyright (c) 2012 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 "printing/metafile_skia_wrapper.h" |
| #include "skia/ext/platform_device.h" |
| #include "skia/ext/refptr.h" |
| #include "third_party/skia/include/core/SkCanvas.h" |
| #include "third_party/skia/include/core/SkDevice.h" |
| #include "third_party/skia/include/core/SkMetaData.h" |
| |
| namespace printing { |
| |
| namespace { |
| |
| const char* kMetafileKey = "CrMetafile"; |
| const char* kCustomScaleKey = "CrCustomScale"; |
| |
| } // namespace |
| |
| // static |
| void MetafileSkiaWrapper::SetMetafileOnCanvas(const SkCanvas& canvas, |
| Metafile* metafile) { |
| skia::RefPtr<MetafileSkiaWrapper> wrapper; |
| if (metafile) |
| wrapper = skia::AdoptRef(new MetafileSkiaWrapper(metafile)); |
| |
| SkMetaData& meta = skia::getMetaData(canvas); |
| meta.setRefCnt(kMetafileKey, wrapper.get()); |
| } |
| |
| // static |
| Metafile* MetafileSkiaWrapper::GetMetafileFromCanvas(const SkCanvas& canvas) { |
| SkMetaData& meta = skia::getMetaData(canvas); |
| SkRefCnt* value; |
| if (!meta.findRefCnt(kMetafileKey, &value) || !value) |
| return NULL; |
| |
| return static_cast<MetafileSkiaWrapper*>(value)->metafile_; |
| } |
| |
| // static |
| void MetafileSkiaWrapper::SetCustomScaleOnCanvas(const SkCanvas& canvas, |
| double scale) { |
| SkMetaData& meta = skia::getMetaData(canvas); |
| meta.setScalar(kCustomScaleKey, SkFloatToScalar(scale)); |
| } |
| |
| // static |
| bool MetafileSkiaWrapper::GetCustomScaleOnCanvas(const SkCanvas& canvas, |
| double* scale) { |
| SkMetaData& meta = skia::getMetaData(canvas); |
| SkScalar value; |
| if (!meta.findScalar(kCustomScaleKey, &value)) |
| return false; |
| |
| *scale = SkScalarToFloat(value); |
| return true; |
| } |
| |
| MetafileSkiaWrapper::MetafileSkiaWrapper(Metafile* metafile) |
| : metafile_(metafile) { |
| } |
| |
| } // namespace printing |