1 /* 2 * Copyright 2018 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SkSGText_DEFINED 9 #define SkSGText_DEFINED 10 11 #include "SkSGGeometryNode.h" 12 13 #include "SkPaintDefaults.h" 14 #include "SkPoint.h" 15 #include "SkString.h" 16 17 class SkCanvas; 18 class SkPaint; 19 class SkTextBlob; 20 class SkTypeface; 21 22 namespace sksg { 23 24 /** 25 * Concrete Geometry node, wrapping a (shaped) SkTextBlob. 26 */ 27 class Text final : public GeometryNode { 28 public: 29 static sk_sp<Text> Make(sk_sp<SkTypeface> tf, const SkString& text); 30 ~Text() override; 31 32 SG_ATTRIBUTE(Text , SkString , fText ) 33 SG_ATTRIBUTE(Flags , uint32_t , fFlags ) 34 SG_ATTRIBUTE(Position, SkPoint , fPosition) 35 SG_ATTRIBUTE(Size , SkScalar , fSize ) 36 SG_ATTRIBUTE(ScaleX , SkScalar , fScaleX ) 37 SG_ATTRIBUTE(SkewX , SkScalar , fSkewX ) 38 SG_ATTRIBUTE(Align , SkPaint::Align, fAlign ) 39 40 // TODO: add shaping functionality. 41 42 protected: 43 void onClip(SkCanvas*, bool antiAlias) const override; 44 void onDraw(SkCanvas*, const SkPaint&) const override; 45 46 SkRect onRevalidate(InvalidationController*, const SkMatrix&) override; 47 SkPath onAsPath() const override; 48 49 private: 50 explicit Text(sk_sp<SkTypeface>, const SkString&); 51 52 const sk_sp<SkTypeface> fTypeface; 53 SkString fText; 54 uint32_t fFlags = SkPaintDefaults_Flags; 55 SkPoint fPosition = SkPoint::Make(0, 0); 56 SkScalar fSize = SkPaintDefaults_TextSize; 57 SkScalar fScaleX = 1; 58 SkScalar fSkewX = 0; 59 SkPaint::Align fAlign = SkPaint::kLeft_Align; 60 SkPaint::Hinting fHinting = SkPaintDefaults_Hinting; 61 62 sk_sp<SkTextBlob> fBlob; // cached text blob 63 64 using INHERITED = GeometryNode; 65 }; 66 67 } // namespace sksg 68 69 #endif // SkSGText_DEFINED 70
