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