SkSVGImage.h

Go to the documentation of this file.

/*
 * Copyright 2021 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#ifndef SkSVGImage_DEFINED
#define SkSVGImage_DEFINED
 
#include "modules/svg/include/SkSVGTransformableNode.h"
#include "modules/svg/include/SkSVGTypes.h"
 
namespace skresources {
class ResourceProvider;
}
 
class SK_API SkSVGImage final : public SkSVGTransformableNode {
public:
    static sk_sp<SkSVGImage> Make() {
        return sk_sp<SkSVGImage>(new SkSVGImage());
    }
 
    void appendChild(sk_sp<SkSVGNode>) override {
        SkDebugf("cannot append child nodes to this element.\n");
    }
 
    bool onPrepareToRender(SkSVGRenderContext*) const override;
    void onRender(const SkSVGRenderContext&) const override;
    SkPath onAsPath(const SkSVGRenderContext&) const override;
    SkRect onObjectBoundingBox(const SkSVGRenderContext&) const override;
 
    struct ImageInfo {
        sk_sp<SkImage> fImage;
        SkRect         fDst;
    };
    static ImageInfo LoadImage(const sk_sp<skresources::ResourceProvider>&,
                               const SkSVGIRI&,
                               const SkRect&,
                               SkSVGPreserveAspectRatio);
 
    SVG_ATTR(X                  , SkSVGLength             , SkSVGLength(0))
    SVG_ATTR(Y                  , SkSVGLength             , SkSVGLength(0))
    SVG_ATTR(Width              , SkSVGLength             , SkSVGLength(0))
    SVG_ATTR(Height             , SkSVGLength             , SkSVGLength(0))
    SVG_ATTR(Href               , SkSVGIRI                , SkSVGIRI())
    SVG_ATTR(PreserveAspectRatio, SkSVGPreserveAspectRatio, SkSVGPreserveAspectRatio())
 
protected:
    bool parseAndSetAttribute(const char*, const char*) override;
 
private:
    SkSVGImage() : INHERITED(SkSVGTag::kImage) {}
 
    using INHERITED = SkSVGTransformableNode;
};
 
#endif  // SkSVGImage_DEFINED