1 /*
2  * Copyright 2021 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 #ifndef SkSVGImage_DEFINED
9 #define SkSVGImage_DEFINED
10 
11 #include "modules/svg/include/SkSVGTransformableNode.h"
12 #include "modules/svg/include/SkSVGTypes.h"
13 
14 namespace skresources {
15 class ResourceProvider;
16 }
17 
18 class SkSVGImage final : public SkSVGTransformableNode {
19 public:
Make()20     static sk_sp<SkSVGImage> Make() {
21         return sk_sp<SkSVGImage>(new SkSVGImage());
22     }
23 
appendChild(sk_sp<SkSVGNode>)24     void appendChild(sk_sp<SkSVGNode>) override {
25         SkDebugf("cannot append child nodes to this element.\n");
26     }
27 
28     bool onPrepareToRender(SkSVGRenderContext*) const override;
29     void onRender(const SkSVGRenderContext&) const override;
30     SkPath onAsPath(const SkSVGRenderContext&) const override;
31     SkRect onObjectBoundingBox(const SkSVGRenderContext&) const override;
32 
33     struct ImageInfo {
34         sk_sp<SkImage> fImage;
35         SkRect         fDst;
36     };
37     static ImageInfo LoadImage(const sk_sp<skresources::ResourceProvider>&,
38                                const SkSVGIRI&,
39                                const SkRect&,
40                                SkSVGPreserveAspectRatio);
41 
42     SVG_ATTR(X                  , SkSVGLength             , SkSVGLength(0))
43     SVG_ATTR(Y                  , SkSVGLength             , SkSVGLength(0))
44     SVG_ATTR(Width              , SkSVGLength             , SkSVGLength(0))
45     SVG_ATTR(Height             , SkSVGLength             , SkSVGLength(0))
46     SVG_ATTR(Href               , SkSVGIRI                , SkSVGIRI())
47     SVG_ATTR(PreserveAspectRatio, SkSVGPreserveAspectRatio, SkSVGPreserveAspectRatio())
48 
49 protected:
50     bool parseAndSetAttribute(const char*, const char*) override;
51 
52 private:
SkSVGImage()53     SkSVGImage() : INHERITED(SkSVGTag::kImage) {}
54 
55     using INHERITED = SkSVGTransformableNode;
56 };
57 
58 #endif  // SkSVGImage_DEFINED
59