2018-01-31 22:06:59 +00:00
|
|
|
/*
|
|
|
|
* 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
|
|
|
|
|
2019-04-23 17:05:21 +00:00
|
|
|
#include "modules/sksg/include/SkSGGeometryNode.h"
|
2018-01-31 22:06:59 +00:00
|
|
|
|
2019-04-23 17:05:21 +00:00
|
|
|
#include "include/core/SkFont.h"
|
|
|
|
#include "include/core/SkPoint.h"
|
|
|
|
#include "include/core/SkString.h"
|
|
|
|
#include "include/core/SkTextBlob.h"
|
|
|
|
#include "include/utils/SkTextUtils.h"
|
2018-01-31 22:06:59 +00:00
|
|
|
|
|
|
|
class SkCanvas;
|
|
|
|
class SkPaint;
|
|
|
|
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;
|
|
|
|
|
2018-11-21 21:03:58 +00:00
|
|
|
SG_ATTRIBUTE(Typeface, sk_sp<SkTypeface> , fTypeface)
|
|
|
|
SG_ATTRIBUTE(Text , SkString , fText )
|
|
|
|
SG_ATTRIBUTE(Position, SkPoint , fPosition)
|
|
|
|
SG_ATTRIBUTE(Size , SkScalar , fSize )
|
|
|
|
SG_ATTRIBUTE(ScaleX , SkScalar , fScaleX )
|
|
|
|
SG_ATTRIBUTE(SkewX , SkScalar , fSkewX )
|
|
|
|
SG_ATTRIBUTE(Align , SkTextUtils::Align, fAlign )
|
|
|
|
SG_ATTRIBUTE(Edging , SkFont::Edging , fEdging )
|
|
|
|
SG_ATTRIBUTE(Hinting , SkFontHinting , fHinting )
|
2018-01-31 22:06:59 +00:00
|
|
|
|
|
|
|
// TODO: add shaping functionality.
|
|
|
|
|
|
|
|
protected:
|
|
|
|
void onClip(SkCanvas*, bool antiAlias) const override;
|
|
|
|
void onDraw(SkCanvas*, const SkPaint&) const override;
|
2019-02-12 14:33:21 +00:00
|
|
|
bool onContains(const SkPoint&) const override;
|
2018-01-31 22:06:59 +00:00
|
|
|
|
|
|
|
SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
|
|
|
|
SkPath onAsPath() const override;
|
|
|
|
|
|
|
|
private:
|
2018-11-01 15:16:18 +00:00
|
|
|
Text(sk_sp<SkTypeface>, const SkString&);
|
2018-01-31 22:06:59 +00:00
|
|
|
|
2018-08-15 20:51:42 +00:00
|
|
|
SkPoint alignedPosition(SkScalar advance) const;
|
|
|
|
|
2018-08-27 02:06:55 +00:00
|
|
|
sk_sp<SkTypeface> fTypeface;
|
2018-01-31 22:06:59 +00:00
|
|
|
SkString fText;
|
|
|
|
SkPoint fPosition = SkPoint::Make(0, 0);
|
2018-11-21 21:03:58 +00:00
|
|
|
SkScalar fSize = 12;
|
2018-01-31 22:06:59 +00:00
|
|
|
SkScalar fScaleX = 1;
|
|
|
|
SkScalar fSkewX = 0;
|
2018-10-30 16:53:21 +00:00
|
|
|
SkTextUtils::Align fAlign = SkTextUtils::kLeft_Align;
|
2018-11-21 21:03:58 +00:00
|
|
|
SkFont::Edging fEdging = SkFont::Edging::kAntiAlias;
|
2019-05-07 20:50:29 +00:00
|
|
|
SkFontHinting fHinting = SkFontHinting::kNormal;
|
2018-01-31 22:06:59 +00:00
|
|
|
|
|
|
|
sk_sp<SkTextBlob> fBlob; // cached text blob
|
|
|
|
|
|
|
|
using INHERITED = GeometryNode;
|
|
|
|
};
|
|
|
|
|
2018-11-01 15:16:18 +00:00
|
|
|
/**
|
|
|
|
* Concrete Geometry node, wrapping an external SkTextBlob.
|
|
|
|
*/
|
|
|
|
class TextBlob final : public GeometryNode {
|
|
|
|
public:
|
|
|
|
static sk_sp<TextBlob> Make(sk_sp<SkTextBlob> = nullptr);
|
|
|
|
~TextBlob() override;
|
|
|
|
|
|
|
|
SG_ATTRIBUTE(Blob , sk_sp<SkTextBlob>, fBlob )
|
|
|
|
SG_ATTRIBUTE(Position, SkPoint , fPosition)
|
|
|
|
|
|
|
|
protected:
|
|
|
|
void onClip(SkCanvas*, bool antiAlias) const override;
|
|
|
|
void onDraw(SkCanvas*, const SkPaint&) const override;
|
2019-02-12 14:33:21 +00:00
|
|
|
bool onContains(const SkPoint&) const override;
|
2018-11-01 15:16:18 +00:00
|
|
|
|
|
|
|
SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
|
|
|
|
SkPath onAsPath() const override;
|
|
|
|
|
|
|
|
private:
|
|
|
|
explicit TextBlob(sk_sp<SkTextBlob>);
|
|
|
|
|
|
|
|
sk_sp<SkTextBlob> fBlob;
|
|
|
|
SkPoint fPosition = SkPoint::Make(0, 0);
|
|
|
|
|
|
|
|
using INHERITED = GeometryNode;
|
|
|
|
};
|
2018-01-31 22:06:59 +00:00
|
|
|
} // namespace sksg
|
|
|
|
|
|
|
|
#endif // SkSGText_DEFINED
|