60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
// Copyright (c) 2014 GitHub, Inc. All rights reserved.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "atom/common/native_mate_converters/image_converter.h"
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#include <string>
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#include "atom/common/native_mate_converters/file_path_converter.h"
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#include "base/file_util.h"
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#include "base/strings/string_util.h"
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#include "ui/gfx/codec/jpeg_codec.h"
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#include "ui/gfx/codec/png_codec.h"
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#include "ui/gfx/image/image_skia.h"
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#include "ui/base/layout.h"
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namespace mate {
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namespace {
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ui::ScaleFactor GetScaleFactorFromFileName(const base::FilePath& path) {
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std::string filename(path.BaseName().RemoveExtension().AsUTF8Unsafe());
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if (EndsWith(filename, "@2x", true))
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return ui::SCALE_FACTOR_200P;
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else
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return ui::SCALE_FACTOR_100P;
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}
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} // namespace
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bool Converter<gfx::ImageSkia>::FromV8(v8::Isolate* isolate,
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v8::Handle<v8::Value> val,
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gfx::ImageSkia* out) {
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base::FilePath path;
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if (Converter<base::FilePath>::FromV8(isolate, val, &path)) {
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std::string file_contents;
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if (!base::ReadFileToString(path, &file_contents))
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return false;
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const unsigned char* data =
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reinterpret_cast<const unsigned char*>(file_contents.data());
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size_t size = file_contents.size();
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scoped_ptr<SkBitmap> decoded(new SkBitmap());
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// Try PNG first.
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if (!gfx::PNGCodec::Decode(data, size, decoded.get()))
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// Try JPEG.
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decoded.reset(gfx::JPEGCodec::Decode(data, size));
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if (decoded) {
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*out = gfx::ImageSkia(gfx::ImageSkiaRep(*decoded.release(),
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GetScaleFactorFromFileName(path)));
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return true;
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}
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}
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return false;
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}
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} // namespace mate
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