bc45f28328
Change-Id: I1dfb6b98c237ff916f478c39d925e775c2c1bb74 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/276957 Commit-Queue: Mike Reed <reed@google.com> Commit-Queue: Brian Osman <brianosman@google.com> Auto-Submit: Mike Reed <reed@google.com> Reviewed-by: Brian Osman <brianosman@google.com>
84 lines
4.2 KiB
C++
84 lines
4.2 KiB
C++
/*
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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 "include/core/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 onDrawBehind(const SkPaint&) override {} // make zero after android updates
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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 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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// restore me later when clients are updated
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// void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) 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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#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
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// This is under active development for Chrome and not used in Android. Hold off on adding
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// implementations in Android's SkCanvas subclasses until this stabilizes.
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void onDrawEdgeAAQuad(const SkRect& rect, const SkPoint clip[4],
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SkCanvas::QuadAAFlags aaFlags, const SkColor4f& color, SkBlendMode mode) override {}
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void onDrawEdgeAAImageSet(const SkCanvas::ImageSetEntry imageSet[], int count,
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const SkPoint dstClips[], const SkMatrix preViewMatrices[], const SkPaint* paint,
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SkCanvas::SrcRectConstraint constraint) override {}
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#else
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void onDrawEdgeAAQuad(const SkRect& rect, const SkPoint clip[4],
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SkCanvas::QuadAAFlags aaFlags, const SkColor4f& color, SkBlendMode mode) override = 0;
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void onDrawEdgeAAImageSet(const SkCanvas::ImageSetEntry imageSet[], int count,
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const SkPoint dstClips[], const SkMatrix preViewMatrices[], const SkPaint* paint,
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SkCanvas::SrcRectConstraint constraint) override = 0;
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#endif
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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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