1aa1bb65fd
https://www.w3.org/TR/SVG/pservers.html#Patterns Change-Id: I80455c4ae04cf03526f8e8797f40b0b2d24e043f Reviewed-on: https://skia-review.googlesource.com/58461 Commit-Queue: Florin Malita <fmalita@chromium.org> Reviewed-by: Robert Phillips <robertphillips@google.com>
110 lines
3.5 KiB
C++
110 lines
3.5 KiB
C++
/*
|
|
* Copyright 2016 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#ifndef SkSVGRenderContext_DEFINED
|
|
#define SkSVGRenderContext_DEFINED
|
|
|
|
#include "SkPaint.h"
|
|
#include "SkPath.h"
|
|
#include "SkRect.h"
|
|
#include "SkSize.h"
|
|
#include "SkSVGAttribute.h"
|
|
#include "SkSVGIDMapper.h"
|
|
#include "SkTLazy.h"
|
|
#include "SkTypes.h"
|
|
|
|
class SkCanvas;
|
|
class SkSVGLength;
|
|
|
|
class SkSVGLengthContext {
|
|
public:
|
|
SkSVGLengthContext(const SkSize& viewport, SkScalar dpi = 90)
|
|
: fViewport(viewport), fDPI(dpi) {}
|
|
|
|
enum class LengthType {
|
|
kHorizontal,
|
|
kVertical,
|
|
kOther,
|
|
};
|
|
|
|
const SkSize& viewPort() const { return fViewport; }
|
|
void setViewPort(const SkSize& viewport) { fViewport = viewport; }
|
|
|
|
SkScalar resolve(const SkSVGLength&, LengthType) const;
|
|
SkRect resolveRect(const SkSVGLength& x, const SkSVGLength& y,
|
|
const SkSVGLength& w, const SkSVGLength& h) const;
|
|
|
|
private:
|
|
SkSize fViewport;
|
|
SkScalar fDPI;
|
|
};
|
|
|
|
struct SkSVGPresentationContext {
|
|
SkSVGPresentationContext();
|
|
SkSVGPresentationContext(const SkSVGPresentationContext&) = default;
|
|
SkSVGPresentationContext& operator=(const SkSVGPresentationContext&) = default;
|
|
|
|
// Inherited presentation attributes, computed for the current node.
|
|
SkSVGPresentationAttributes fInherited;
|
|
|
|
// Cached paints, reflecting the current presentation attributes.
|
|
SkPaint fFillPaint;
|
|
SkPaint fStrokePaint;
|
|
};
|
|
|
|
class SkSVGRenderContext {
|
|
public:
|
|
SkSVGRenderContext(SkCanvas*, const SkSVGIDMapper&, const SkSVGLengthContext&,
|
|
const SkSVGPresentationContext&);
|
|
SkSVGRenderContext(const SkSVGRenderContext&);
|
|
SkSVGRenderContext(const SkSVGRenderContext&, SkCanvas*);
|
|
~SkSVGRenderContext();
|
|
|
|
const SkSVGLengthContext& lengthContext() const { return *fLengthContext; }
|
|
SkSVGLengthContext* writableLengthContext() { return fLengthContext.writable(); }
|
|
|
|
const SkSVGPresentationContext& presentationContext() const { return *fPresentationContext; }
|
|
|
|
SkCanvas* canvas() const { return fCanvas; }
|
|
void saveOnce();
|
|
|
|
enum ApplyFlags {
|
|
kLeaf = 1 << 0, // the target node doesn't have descendants
|
|
};
|
|
void applyPresentationAttributes(const SkSVGPresentationAttributes&, uint32_t flags);
|
|
|
|
const SkSVGNode* findNodeById(const SkString&) const;
|
|
|
|
const SkPaint* fillPaint() const;
|
|
const SkPaint* strokePaint() const;
|
|
|
|
// The local computed clip path (not inherited).
|
|
const SkPath* clipPath() const { return fClipPath.getMaybeNull(); }
|
|
|
|
private:
|
|
// Stack-only
|
|
void* operator new(size_t) = delete;
|
|
void* operator new(size_t, void*) = delete;
|
|
SkSVGRenderContext& operator=(const SkSVGRenderContext&) = delete;
|
|
|
|
void applyOpacity(SkScalar opacity, uint32_t flags);
|
|
void applyClip(const SkSVGClip&);
|
|
|
|
const SkSVGIDMapper& fIDMapper;
|
|
SkTCopyOnFirstWrite<SkSVGLengthContext> fLengthContext;
|
|
SkTCopyOnFirstWrite<SkSVGPresentationContext> fPresentationContext;
|
|
SkCanvas* fCanvas;
|
|
// The save count on 'fCanvas' at construction time.
|
|
// A restoreToCount() will be issued on destruction.
|
|
int fCanvasSaveCount;
|
|
|
|
// clipPath, if present for the current context (not inherited).
|
|
SkTLazy<SkPath> fClipPath;
|
|
};
|
|
|
|
#endif // SkSVGRenderContext_DEFINED
|