skia2/samplecode/SampleSVGFile.cpp

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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SampleCode.h"
#include "SkCanvas.h"
#include "SkDOM.h"
#include "SkOSFile.h"
#include "SkStream.h"
#include "SkSVGDOM.h"
#include "SkView.h"
namespace {
class SVGFileView : public SampleView {
public:
SVGFileView(const SkString& path)
: fPath(path), fLabel(SkStringPrintf("[%s]", SkOSPath::Basename(path.c_str()).c_str())) {}
virtual ~SVGFileView() = default;
protected:
void onOnceBeforeDraw() override {
SkFILEStream svgStream(fPath.c_str());
if (!svgStream.isValid()) {
SkDebugf("file not found: \"path\"\n", fPath.c_str());
return;
}
SkDOM xmlDom;
if (!xmlDom.build(svgStream)) {
SkDebugf("XML parsing failed: \"path\"\n", fPath.c_str());
return;
}
fDom = SkSVGDOM::MakeFromDOM(xmlDom);
if (fDom) {
fDom->setContainerSize(SkSize::Make(this->width(), this->height()));
}
}
void onDrawContent(SkCanvas* canvas) override {
if (fDom) {
fDom->render(canvas);
}
}
void onSizeChange() override {
if (fDom) {
fDom->setContainerSize(SkSize::Make(this->width(), this->height()));
}
this->INHERITED::onSizeChange();
}
bool onQuery(SkEvent* evt) override {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, fLabel.c_str());
return true;
}
return this->INHERITED::onQuery(evt);
}
private:
sk_sp<SkSVGDOM> fDom;
SkString fPath;
SkString fLabel;
typedef SampleView INHERITED;
};
} // anonymous namespace
SampleView* CreateSampleSVGFileView(const SkString& filename);
SampleView* CreateSampleSVGFileView(const SkString& filename) {
return new SVGFileView(filename);
}