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Add NativeImage.ToJPEG

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This commit is contained in:
Cheng Zhao 2015-02-11 17:47:54 +08:00
parent 549df36f00
commit 53fca43d89
2 changed files with 11 additions and 0 deletions
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10
atom/common/api/atom_api_native_image.cc
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@ -10,6 +10,7 @@
#include "native_mate/dictionary.h"
#include "native_mate/object_template_builder.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/image/image_util.h"
#include "atom/common/node_includes.h"
@ -32,6 +33,7 @@ mate::ObjectTemplateBuilder NativeImage::GetObjectTemplateBuilder(
if (template_.IsEmpty())
template_.Reset(isolate, mate::ObjectTemplateBuilder(isolate)
.SetMethod("toPng", &NativeImage::ToPNG)
.SetMethod("toJpeg", &NativeImage::ToJPEG)
.SetMethod("isEmpty", &NativeImage::IsEmpty)
.SetMethod("getSize", &NativeImage::GetSize)
.Build());
@ -47,6 +49,14 @@ v8::Handle<v8::Value> NativeImage::ToPNG(v8::Isolate* isolate) {
png->size());
}
v8::Handle<v8::Value> NativeImage::ToJPEG(v8::Isolate* isolate, int quality) {
std::vector<unsigned char> output;
gfx::JPEG1xEncodedDataFromImage(image_, quality, &output);
return node::Buffer::New(isolate,
reinterpret_cast<const char*>(&output.front()),
output.size());
}
bool NativeImage::IsEmpty() {
return image_.IsEmpty();
}

1
atom/common/api/atom_api_native_image.h
View file

@ -32,6 +32,7 @@ class NativeImage : public mate::Wrappable {
private:
v8::Handle<v8::Value> ToPNG(v8::Isolate* isolate);
v8::Handle<v8::Value> ToJPEG(v8::Isolate* isolate, int quality);
bool IsEmpty();
gfx::Size GetSize();