86 lines
4.5 KiB
C
86 lines
4.5 KiB
C
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/*
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* Copyright 2018 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 SkCanvasVirtualEnforcer_DEFINED
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#define SkCanvasVirtualEnforcer_DEFINED
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#include "SkCanvas.h"
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// If you would ordinarily want to inherit from Base (eg SkCanvas, SkNWayCanvas), instead
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// inherit from SkCanvasVirtualEnforcer<Base>, which will make the build fail if you forget
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// to override one of SkCanvas' key virtual hooks.
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template <typename Base>
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class SkCanvasVirtualEnforcer : public Base {
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public:
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using Base::Base;
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protected:
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void onDrawPaint(const SkPaint& paint) override = 0;
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void onDrawRect(const SkRect& rect, const SkPaint& paint) override = 0;
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void onDrawRRect(const SkRRect& rrect, const SkPaint& paint) override = 0;
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void onDrawDRRect(const SkRRect& outer, const SkRRect& inner,
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const SkPaint& paint) override = 0;
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void onDrawOval(const SkRect& rect, const SkPaint& paint) override = 0;
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void onDrawArc(const SkRect& rect, SkScalar startAngle, SkScalar sweepAngle, bool useCenter,
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const SkPaint& paint) override = 0;
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void onDrawPath(const SkPath& path, const SkPaint& paint) override = 0;
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void onDrawRegion(const SkRegion& region, const SkPaint& paint) override = 0;
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void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
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const SkPaint& paint) override = 0;
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void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
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const SkPaint& paint) override = 0;
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void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
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SkScalar constY, const SkPaint& paint) override = 0;
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void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path,
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const SkMatrix* matrix, const SkPaint& paint) override = 0;
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void onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[],
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const SkRect* cullRect, const SkPaint& paint) override = 0;
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void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
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const SkPaint& paint) override = 0;
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void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
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const SkPoint texCoords[4], SkBlendMode mode,
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const SkPaint& paint) override = 0;
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void onDrawPoints(SkCanvas::PointMode mode, size_t count, const SkPoint pts[],
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const SkPaint& paint) override = 0;
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void onDrawVerticesObject(const SkVertices* vertices, SkBlendMode mode,
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const SkPaint& paint) override = 0;
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void onDrawImage(const SkImage* image, SkScalar dx, SkScalar dy,
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const SkPaint* paint) override = 0;
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void onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst,
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const SkPaint* paint, SkCanvas::SrcRectConstraint constraint) override = 0;
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void onDrawImageNine(const SkImage* image, const SkIRect& center, const SkRect& dst,
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const SkPaint* paint) override = 0;
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void onDrawImageLattice(const SkImage* image, const SkCanvas::Lattice& lattice,
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const SkRect& dst, const SkPaint* paint) override = 0;
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void onDrawBitmap(const SkBitmap& bitmap, SkScalar dx, SkScalar dy,
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const SkPaint* paint) override = 0;
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void onDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect& dst,
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const SkPaint* paint,
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SkCanvas::SrcRectConstraint constraint) override = 0;
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void onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, const SkRect& dst,
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const SkPaint* paint) override = 0;
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void onDrawBitmapLattice(const SkBitmap& bitmap, const SkCanvas::Lattice& lattice,
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const SkRect& dst, const SkPaint* paint) override = 0;
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void onDrawAtlas(const SkImage* atlas, const SkRSXform xform[], const SkRect rect[],
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const SkColor colors[], int count, SkBlendMode mode, const SkRect* cull,
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const SkPaint* paint) override = 0;
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void onDrawAnnotation(const SkRect& rect, const char key[], SkData* value) override = 0;
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void onDrawShadowRec(const SkPath&, const SkDrawShadowRec&) override = 0;
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void onDrawDrawable(SkDrawable* drawable, const SkMatrix* matrix) override = 0;
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void onDrawPicture(const SkPicture* picture, const SkMatrix* matrix,
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const SkPaint* paint) override = 0;
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};
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#endif
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