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82 lines
3.8 KiB
82 lines
3.8 KiB
/* |
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* Copyright 2016 Google Inc. |
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* |
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* Use of this source code is governed by a BSD-style license that can be |
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* found in the LICENSE file. |
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*/ |
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#ifndef SkNoDrawCanvas_DEFINED |
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#define SkNoDrawCanvas_DEFINED |
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#include "SkCanvas.h" |
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#include "SkVertices.h" |
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struct SkIRect; |
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// SkNoDrawCanvas is a helper for SkCanvas subclasses which do not need to |
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// actually rasterize (e.g., analysis of the draw calls). |
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// |
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// It provides the following simplifications: |
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// |
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// * not backed by any device/pixels |
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// * conservative clipping (clipping calls only use rectangles) |
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// |
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class SK_API SkNoDrawCanvas : public SkCanvas { |
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public: |
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SkNoDrawCanvas(int width, int height); |
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// TODO: investigate the users of this ctor. |
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SkNoDrawCanvas(const SkIRect&); |
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// Optimization to reset state to be the same as after construction. |
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void resetCanvas(int width, int height) { |
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resetForNextPicture(SkIRect::MakeWH(width, height)); |
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} |
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protected: |
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SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec& rec) override; |
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// No-op overrides for aborting rasterization earlier than SkNullBlitter. |
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void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override {} |
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void onDrawDrawable(SkDrawable*, const SkMatrix*) override {} |
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void onDrawText(const void*, size_t, SkScalar, SkScalar, const SkPaint&) override {} |
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void onDrawPosText(const void*, size_t, const SkPoint[], const SkPaint&) override {} |
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void onDrawPosTextH(const void*, size_t, const SkScalar[], SkScalar, const SkPaint&) override {} |
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void onDrawTextOnPath(const void*, size_t, const SkPath&, const SkMatrix*, |
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const SkPaint&) override {} |
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void onDrawTextRSXform(const void*, size_t, const SkRSXform[], const SkRect*, |
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const SkPaint&) override {} |
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void onDrawTextBlob(const SkTextBlob*, SkScalar, SkScalar, const SkPaint&) override {} |
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void onDrawPatch(const SkPoint[12], const SkColor[4], const SkPoint[4], SkBlendMode, |
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const SkPaint&) override {} |
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void onDrawPaint(const SkPaint&) override {} |
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void onDrawPoints(PointMode, size_t, const SkPoint[], const SkPaint&) override {} |
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void onDrawRect(const SkRect&, const SkPaint&) override {} |
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void onDrawRegion(const SkRegion&, const SkPaint&) override {} |
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void onDrawOval(const SkRect&, const SkPaint&) override {} |
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void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override {} |
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void onDrawRRect(const SkRRect&, const SkPaint&) override {} |
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void onDrawPath(const SkPath&, const SkPaint&) override {} |
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void onDrawBitmap(const SkBitmap&, SkScalar, SkScalar, const SkPaint*) override {} |
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void onDrawBitmapRect(const SkBitmap&, const SkRect*, const SkRect&, const SkPaint*, |
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SrcRectConstraint) override {} |
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void onDrawImage(const SkImage*, SkScalar, SkScalar, const SkPaint*) override {} |
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void onDrawImageRect(const SkImage*, const SkRect*, const SkRect&, const SkPaint*, |
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SrcRectConstraint) override {} |
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void onDrawImageNine(const SkImage*, const SkIRect&, const SkRect&, const SkPaint*) override {} |
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void onDrawBitmapNine(const SkBitmap&, const SkIRect&, const SkRect&, |
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const SkPaint*) override {} |
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void onDrawImageLattice(const SkImage*, const Lattice&, const SkRect&, |
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const SkPaint*) override {} |
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void onDrawBitmapLattice(const SkBitmap&, const Lattice&, const SkRect&, |
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const SkPaint*) override {} |
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void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override {} |
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void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[], |
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int, SkBlendMode, const SkRect*, const SkPaint*) override {} |
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private: |
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typedef SkCanvas INHERITED; |
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}; |
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#endif // SkNoDrawCanvas_DEFINED
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