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1 /*
2  * Copyright 2017 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 SkSVGPattern_DEFINED
9 #define SkSVGPattern_DEFINED
10 
11 #include "modules/svg/include/SkSVGHiddenContainer.h"
12 #include "modules/svg/include/SkSVGTypes.h"
13 
14 class SkSVGRenderContext;
15 
16 class SkSVGPattern final : public SkSVGHiddenContainer {
17 public:
Make()18     static sk_sp<SkSVGPattern> Make() {
19         return sk_sp<SkSVGPattern>(new SkSVGPattern());
20     }
21 
22     SVG_ATTR(Href, SkSVGIRI, SkSVGIRI())
23     SVG_OPTIONAL_ATTR(X               , SkSVGLength)
24     SVG_OPTIONAL_ATTR(Y               , SkSVGLength)
25     SVG_OPTIONAL_ATTR(Width           , SkSVGLength)
26     SVG_OPTIONAL_ATTR(Height          , SkSVGLength)
27     SVG_OPTIONAL_ATTR(PatternTransform, SkSVGTransformType)
28 
29 protected:
30     SkSVGPattern();
31 
32     bool parseAndSetAttribute(const char*, const char*) override;
33 
34     bool onAsPaint(const SkSVGRenderContext&, SkPaint*) const override;
35 
36 private:
37     struct PatternAttributes {
38         SkTLazy<SkSVGLength>        fX,
39                                     fY,
40                                     fWidth,
41                                     fHeight;
42         SkTLazy<SkSVGTransformType> fPatternTransform;
43     };
44 
45     const SkSVGPattern* resolveHref(const SkSVGRenderContext&, PatternAttributes*) const;
46     const SkSVGPattern* hrefTarget(const SkSVGRenderContext&) const;
47 
48     // TODO:
49     //   - patternUnits
50     //   - patternContentUnits
51 
52     using INHERITED = SkSVGHiddenContainer;
53 };
54 
55 #endif // SkSVGPattern_DEFINED
56