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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkSGText_DEFINED
#define SkSGText_DEFINED
#include "SkSGGeometryNode.h"
#include "SkPaintDefaults.h"
#include "SkPoint.h"
#include "SkString.h"
class SkCanvas;
class SkPaint;
class SkTextBlob;
class SkTypeface;
namespace sksg {
/**
* Concrete Geometry node, wrapping a (shaped) SkTextBlob.
*/
class Text final : public GeometryNode {
public:
static sk_sp<Text> Make(sk_sp<SkTypeface> tf, const SkString& text);
~Text() override;
SG_ATTRIBUTE(Text , SkString , fText )
SG_ATTRIBUTE(Flags , uint32_t , fFlags )
SG_ATTRIBUTE(Position, SkPoint , fPosition)
SG_ATTRIBUTE(Size , SkScalar , fSize )
SG_ATTRIBUTE(ScaleX , SkScalar , fScaleX )
SG_ATTRIBUTE(SkewX , SkScalar , fSkewX )
SG_ATTRIBUTE(Align , SkPaint::Align, fAlign )
// TODO: add shaping functionality.
protected:
void onClip(SkCanvas*, bool antiAlias) const override;
void onDraw(SkCanvas*, const SkPaint&) const override;
SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
SkPath onAsPath() const override;
private:
explicit Text(sk_sp<SkTypeface>, const SkString&);
const sk_sp<SkTypeface> fTypeface;
SkString fText;
uint32_t fFlags = SkPaintDefaults_Flags;
SkPoint fPosition = SkPoint::Make(0, 0);
SkScalar fSize = SkPaintDefaults_TextSize;
SkScalar fScaleX = 1;
SkScalar fSkewX = 0;
SkPaint::Align fAlign = SkPaint::kLeft_Align;
SkPaint::Hinting fHinting = SkPaintDefaults_Hinting;
sk_sp<SkTextBlob> fBlob; // cached text blob
using INHERITED = GeometryNode;
};
} // namespace sksg
#endif // SkSGText_DEFINED
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