107 lines
4.6 KiB
C
107 lines
4.6 KiB
C
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/*
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* Copyright 2015 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 SkAndroidSDKCanvas_DEFINED
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#define SkAndroidSDKCanvas_DEFINED
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#include "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkPath.h"
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#include "SkRect.h"
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/** SkDrawFilter is likely to be deprecated; this is a proxy
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canvas that does the same thing: alter SkPaint fields.
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onDraw*() functions may have their SkPaint modified, and are then
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passed on to the same function on proxyTarget. THIS BREAKS CONSTNESS!
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This still suffers one of the same architectural flaws as SkDrawFilter:
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TextBlob paints are incomplete when filter is called.
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*/
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class SkAndroidSDKCanvas : public SkCanvas {
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public:
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SkAndroidSDKCanvas();
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void reset(SkCanvas* newTarget);
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protected:
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// FILTERING
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void onDrawPaint(const SkPaint& paint) SK_OVERRIDE;
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void onDrawPoints(PointMode pMode, size_t count, const SkPoint pts[],
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const SkPaint& paint) SK_OVERRIDE;
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void onDrawOval(const SkRect& r, const SkPaint& paint) SK_OVERRIDE;
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void onDrawRect(const SkRect& r, const SkPaint& paint) SK_OVERRIDE;
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void onDrawRRect(const SkRRect& r, const SkPaint& paint) SK_OVERRIDE;
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void onDrawPath(const SkPath& path, const SkPaint& paint) SK_OVERRIDE;
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void onDrawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
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const SkPaint* paint) SK_OVERRIDE;
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void onDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect& dst,
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const SkPaint* paint, DrawBitmapRectFlags flags) SK_OVERRIDE;
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void onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
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const SkRect& dst, const SkPaint* paint) SK_OVERRIDE;
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void onDrawSprite(const SkBitmap& bitmap, int left, int top,
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const SkPaint* paint) SK_OVERRIDE;
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void onDrawVertices(VertexMode vMode, int vertexCount, const SkPoint vertices[],
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const SkPoint texs[], const SkColor colors[], SkXfermode* xMode,
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const uint16_t indices[], int indexCount,
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const SkPaint& paint) SK_OVERRIDE;
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void onDrawDRRect(const SkRRect& outer, const SkRRect& inner,
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const SkPaint& paint) SK_OVERRIDE;
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void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
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const SkPaint& paint) SK_OVERRIDE;
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void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
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const SkPaint& paint) SK_OVERRIDE;
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void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
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SkScalar constY, const SkPaint& paint) SK_OVERRIDE;
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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) SK_OVERRIDE;
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void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
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const SkPaint& paint) SK_OVERRIDE;
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void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
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const SkPoint texCoords[4], SkXfermode* xmode,
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const SkPaint& paint) SK_OVERRIDE;
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void onDrawImage(const SkImage*, SkScalar, SkScalar, const SkPaint*) SK_OVERRIDE;
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void onDrawImageRect(const SkImage*, const SkRect*, const SkRect&, const SkPaint*)
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SK_OVERRIDE;
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void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*);
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// PASS THROUGH
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void onDrawDrawable(SkDrawable*) SK_OVERRIDE;
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SkISize getBaseLayerSize() const SK_OVERRIDE;
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bool getClipBounds(SkRect*) const SK_OVERRIDE;
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bool getClipDeviceBounds(SkIRect*) const SK_OVERRIDE;
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bool isClipEmpty() const SK_OVERRIDE;
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bool isClipRect() const SK_OVERRIDE;
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SkSurface* onNewSurface(const SkImageInfo&, const SkSurfaceProps&) SK_OVERRIDE;
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const void* onPeekPixels(SkImageInfo*, size_t*) SK_OVERRIDE;
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void* onAccessTopLayerPixels(SkImageInfo*, size_t*) SK_OVERRIDE;
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void willSave() SK_OVERRIDE;
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void willRestore() SK_OVERRIDE;
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void didRestore() SK_OVERRIDE;
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void didConcat(const SkMatrix&) SK_OVERRIDE;
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void didSetMatrix(const SkMatrix&) SK_OVERRIDE;
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void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
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void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
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void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
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void onClipRegion(const SkRegion&, SkRegion::Op) SK_OVERRIDE;
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void onDiscard() SK_OVERRIDE;
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protected:
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SkCanvas* fProxyTarget;
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};
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#endif // SkAndroidSDKCanvas_DEFINED
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