64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
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// Copyright 2019 Google LLC.
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#ifndef ParagraphPainter_DEFINED
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#define ParagraphPainter_DEFINED
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#include "include/core/SkPaint.h"
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#include "include/core/SkTextBlob.h"
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#include <optional>
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#include <variant>
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namespace skia {
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namespace textlayout {
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class ParagraphPainter {
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public:
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typedef int PaintID;
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typedef std::variant<SkPaint, PaintID> SkPaintOrID;
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struct DashPathEffect {
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DashPathEffect(SkScalar onLength, SkScalar offLength);
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SkScalar fOnLength;
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SkScalar fOffLength;
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};
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class DecorationStyle {
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public:
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DecorationStyle();
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DecorationStyle(SkColor color, SkScalar strokeWidth,
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std::optional<DashPathEffect> dashPathEffect);
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SkColor getColor() const { return fColor; }
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SkScalar getStrokeWidth() const { return fStrokeWidth; }
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std::optional<DashPathEffect> getDashPathEffect() const { return fDashPathEffect; }
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const SkPaint& skPaint() const { return fPaint; }
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private:
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SkColor fColor;
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SkScalar fStrokeWidth;
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std::optional<DashPathEffect> fDashPathEffect;
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SkPaint fPaint;
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};
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virtual ~ParagraphPainter() = default;
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virtual void drawTextBlob(const sk_sp<SkTextBlob>& blob, SkScalar x, SkScalar y, const SkPaintOrID& paint) = 0;
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virtual void drawTextShadow(const sk_sp<SkTextBlob>& blob, SkScalar x, SkScalar y, SkColor color, SkScalar blurSigma) = 0;
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virtual void drawRect(const SkRect& rect, const SkPaintOrID& paint) = 0;
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virtual void drawFilledRect(const SkRect& rect, const DecorationStyle& decorStyle) = 0;
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virtual void drawPath(const SkPath& path, const DecorationStyle& decorStyle) = 0;
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virtual void drawLine(SkScalar x0, SkScalar y0, SkScalar x1, SkScalar y1, const DecorationStyle& decorStyle) = 0;
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virtual void clipRect(const SkRect& rect) = 0;
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virtual void translate(SkScalar dx, SkScalar dy) = 0;
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virtual void save() = 0;
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virtual void restore() = 0;
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};
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} // namespace textlayout
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} // namespace skia
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#endif // ParagraphPainter_DEFINED
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