851d68aa56
Parse SVG files in onOnceBeforeDraw() rather than ctor, to avoid front-loading a bunch of work when passed a loarge number of SVGs. R=stephana@google.com,robertphillips@google.com GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2245993002 Review-Url: https://codereview.chromium.org/2245993002
77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SampleCode.h"
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#include "SkCanvas.h"
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#include "SkDOM.h"
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#include "SkOSFile.h"
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#include "SkStream.h"
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#include "SkSVGDOM.h"
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#include "SkView.h"
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namespace {
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class SVGFileView : public SampleView {
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public:
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SVGFileView(const SkString& path)
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: fPath(path), fLabel(SkStringPrintf("[%s]", SkOSPath::Basename(path.c_str()).c_str())) {}
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virtual ~SVGFileView() = default;
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protected:
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void onOnceBeforeDraw() override {
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SkFILEStream svgStream(fPath.c_str());
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if (!svgStream.isValid()) {
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SkDebugf("file not found: \"path\"\n", fPath.c_str());
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return;
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}
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SkDOM xmlDom;
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if (!xmlDom.build(svgStream)) {
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SkDebugf("XML parsing failed: \"path\"\n", fPath.c_str());
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return;
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}
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fDom = SkSVGDOM::MakeFromDOM(xmlDom, SkSize::Make(this->width(), this->height()));
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}
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void onDrawContent(SkCanvas* canvas) override {
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if (fDom) {
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fDom->render(canvas);
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}
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}
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void onSizeChange() override {
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if (fDom) {
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fDom->setContainerSize(SkSize::Make(this->width(), this->height()));
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}
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this->INHERITED::onSizeChange();
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}
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bool onQuery(SkEvent* evt) override {
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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, fLabel.c_str());
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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private:
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sk_sp<SkSVGDOM> fDom;
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SkString fPath;
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SkString fLabel;
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typedef SampleView INHERITED;
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};
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} // anonymous namespace
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SampleView* CreateSampleSVGFileView(const SkString& filename);
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SampleView* CreateSampleSVGFileView(const SkString& filename) {
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return new SVGFileView(filename);
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}
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