1 /*
2 * Copyright 2018 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 "tools/viewer/SvgSlide.h"
9
10 #if defined(SK_ENABLE_SVG)
11
12 #include "include/core/SkCanvas.h"
13 #include "include/core/SkStream.h"
14 #include "modules/skresources/include/SkResources.h"
15 #include "modules/skshaper/utils/FactoryHelpers.h"
16 #include "modules/svg/include/SkSVGDOM.h"
17 #include "modules/svg/include/SkSVGNode.h"
18 #include "src/utils/SkOSPath.h"
19 #include "tools/fonts/FontToolUtils.h"
20
SvgSlide(const SkString & name,const SkString & path)21 SvgSlide::SvgSlide(const SkString& name, const SkString& path)
22 : fPath(path) {
23 fName = name;
24 }
25
26 SvgSlide::~SvgSlide() = default;
27
load(SkScalar w,SkScalar h)28 void SvgSlide::load(SkScalar w, SkScalar h) {
29 auto stream = SkStream::MakeFromFile(fPath.c_str());
30
31 if (!stream) {
32 SkDebugf("Could not open %s.\n", fPath.c_str());
33 return;
34 }
35
36 // Viewer should have already registered the codecs necessary for DataURIResourceProviderProxy
37 auto predecode = skresources::ImageDecodeStrategy::kPreDecode;
38 auto rp = skresources::DataURIResourceProviderProxy::Make(
39 skresources::FileResourceProvider::Make(SkOSPath::Dirname(fPath.c_str()), predecode),
40 predecode, ToolUtils::TestFontMgr());
41
42 fDom = SkSVGDOM::Builder()
43 .setFontManager(ToolUtils::TestFontMgr())
44 .setResourceProvider(std::move(rp))
45 .setTextShapingFactory(SkShapers::BestAvailable())
46 .make(*stream);
47
48 if (fDom) {
49 fDom->setContainerSize(SkSize::Make(w, h));
50 }
51 }
52
unload()53 void SvgSlide::unload() {
54 fDom.reset();
55 }
56
resize(SkScalar w,SkScalar h)57 void SvgSlide::resize(SkScalar w, SkScalar h) {
58 if (fDom) {
59 fDom->setContainerSize(SkSize::Make(w, h));
60 }
61 }
62
draw(SkCanvas * canvas)63 void SvgSlide::draw(SkCanvas* canvas) {
64 if (fDom) {
65 fDom->render(canvas);
66 }
67 }
68
69 #endif // defined(SK_ENABLE_SVG)
70