xref: /aosp_15_r20/external/skia/modules/svg/include/SkSVGPattern.h (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
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 "include/core/SkRefCnt.h"
12 #include "include/private/base/SkAPI.h"
13 #include "modules/svg/include/SkSVGHiddenContainer.h"
14 #include "modules/svg/include/SkSVGNode.h"
15 #include "modules/svg/include/SkSVGTypes.h"
16 #include "src/base/SkTLazy.h"
17 
18 class SkPaint;
19 class SkSVGRenderContext;
20 
21 class SK_API SkSVGPattern final : public SkSVGHiddenContainer {
22 public:
Make()23     static sk_sp<SkSVGPattern> Make() {
24         return sk_sp<SkSVGPattern>(new SkSVGPattern());
25     }
26 
27     SVG_ATTR(Href, SkSVGIRI, SkSVGIRI())
28     SVG_OPTIONAL_ATTR(X               , SkSVGLength)
29     SVG_OPTIONAL_ATTR(Y               , SkSVGLength)
30     SVG_OPTIONAL_ATTR(Width           , SkSVGLength)
31     SVG_OPTIONAL_ATTR(Height          , SkSVGLength)
32     SVG_OPTIONAL_ATTR(PatternTransform, SkSVGTransformType)
33 
34 protected:
35     SkSVGPattern();
36 
37     bool parseAndSetAttribute(const char*, const char*) override;
38 
39     bool onAsPaint(const SkSVGRenderContext&, SkPaint*) const override;
40 
41 private:
42     struct PatternAttributes {
43         SkTLazy<SkSVGLength>        fX,
44                                     fY,
45                                     fWidth,
46                                     fHeight;
47         SkTLazy<SkSVGTransformType> fPatternTransform;
48     };
49 
50     const SkSVGPattern* resolveHref(const SkSVGRenderContext&, PatternAttributes*) const;
51     const SkSVGPattern* hrefTarget(const SkSVGRenderContext&) const;
52 
53     // TODO:
54     //   - patternUnits
55     //   - patternContentUnits
56 
57     using INHERITED = SkSVGHiddenContainer;
58 };
59 
60 #endif // SkSVGPattern_DEFINED
61