Home | History | Annotate | Download | only in samplecode 
      1 /*
      2  * Copyright 2016 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "SampleCode.h"
      9 #include "SkCanvas.h"
     10 #include "SkDOM.h"
     11 #include "SkOSFile.h"
     12 #include "SkOSPath.h"
     13 #include "SkStream.h"
     14 #include "SkSVGDOM.h"
     15 #include "SkView.h"
     16 
     17 namespace {
     18 
     19 class SVGFileView : public SampleView {
     20 public:
     21     SVGFileView(const SkString& path)
     22         : fPath(path), fLabel(SkStringPrintf("[%s]", SkOSPath::Basename(path.c_str()).c_str())) {}
     23     ~SVGFileView() override = default;
     24 
     25 protected:
     26     void onOnceBeforeDraw() override {
     27         SkFILEStream svgStream(fPath.c_str());
     28         if (!svgStream.isValid()) {
     29             SkDebugf("file not found: \"path\"\n", fPath.c_str());
     30             return;
     31         }
     32 
     33         SkDOM xmlDom;
     34         if (!xmlDom.build(svgStream)) {
     35             SkDebugf("XML parsing failed: \"path\"\n", fPath.c_str());
     36             return;
     37         }
     38 
     39         fDom = SkSVGDOM::MakeFromDOM(xmlDom);
     40         if (fDom) {
     41             fDom->setContainerSize(SkSize::Make(this->width(), this->height()));
     42         }
     43     }
     44 
     45     void onDrawContent(SkCanvas* canvas) override {
     46         if (fDom) {
     47             fDom->render(canvas);
     48         }
     49     }
     50 
     51     void onSizeChange() override {
     52         if (fDom) {
     53             fDom->setContainerSize(SkSize::Make(this->width(), this->height()));
     54         }
     55 
     56         this->INHERITED::onSizeChange();
     57     }
     58 
     59     bool onQuery(SkEvent* evt) override {
     60         if (SampleCode::TitleQ(*evt)) {
     61             SampleCode::TitleR(evt, fLabel.c_str());
     62             return true;
     63         }
     64 
     65         return this->INHERITED::onQuery(evt);
     66     }
     67 private:
     68     sk_sp<SkSVGDOM> fDom;
     69     SkString        fPath;
     70     SkString        fLabel;
     71 
     72     typedef SampleView INHERITED;
     73 };
     74 
     75 } // anonymous namespace
     76 
     77 SampleView* CreateSampleSVGFileView(const SkString& filename);
     78 SampleView* CreateSampleSVGFileView(const SkString& filename) {
     79     return new SVGFileView(filename);
     80 }
     81