diff options
Diffstat (limited to 'tools/android/SkAndroidSDKCanvas.h')
-rw-r--r-- | tools/android/SkAndroidSDKCanvas.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/tools/android/SkAndroidSDKCanvas.h b/tools/android/SkAndroidSDKCanvas.h new file mode 100644 index 0000000000..d8ee0ed216 --- /dev/null +++ b/tools/android/SkAndroidSDKCanvas.h @@ -0,0 +1,110 @@ +/* + * Copyright 2015 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef SkAndroidSDKCanvas_DEFINED +#define SkAndroidSDKCanvas_DEFINED + +#include "SkBitmap.h" +#include "SkCanvas.h" +#include "SkPaint.h" +#include "SkPath.h" +#include "SkRect.h" + +/** SkDrawFilter is likely to be deprecated; this is a proxy + canvas that does the same thing: alter SkPaint fields. + + onDraw*() functions may have their SkPaint modified, and are then + passed on to the same function on proxyTarget. THIS BREAKS CONSTNESS! + + This still suffers one of the same architectural flaws as SkDrawFilter: + TextBlob paints are incomplete when filter is called. +*/ + +class SkAndroidSDKCanvas : public SkCanvas { +public: + SkAndroidSDKCanvas(); + void reset(SkCanvas* newTarget); + +protected: + + // FILTERING + + void onDrawPaint(const SkPaint& paint) override; + void onDrawPoints(PointMode pMode, size_t count, const SkPoint pts[], + const SkPaint& paint) override; + void onDrawOval(const SkRect& r, const SkPaint& paint) override; + void onDrawRect(const SkRect& r, const SkPaint& paint) override; + void onDrawRRect(const SkRRect& r, const SkPaint& paint) override; + void onDrawPath(const SkPath& path, const SkPaint& paint) override; + void onDrawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top, + const SkPaint* paint) override; + void onDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect& dst, + const SkPaint* paint, SkCanvas::SrcRectConstraint) override; + void onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, + const SkRect& dst, const SkPaint* paint) override; + void onDrawVertices(VertexMode vMode, int vertexCount, const SkPoint vertices[], + const SkPoint texs[], const SkColor colors[], SkXfermode* xMode, + const uint16_t indices[], int indexCount, + const SkPaint& paint) override; + + void onDrawDRRect(const SkRRect& outer, const SkRRect& inner, + const SkPaint& paint) override; + + void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, + const SkPaint& paint) override; + void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], + const SkPaint& paint) override; + void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], + SkScalar constY, const SkPaint& paint) override; + void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path, + const SkMatrix* matrix, const SkPaint& paint) override; + void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, + const SkPaint& paint) override; + + void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], + const SkPoint texCoords[4], SkXfermode* xmode, + const SkPaint& paint) override; + + void onDrawImage(const SkImage*, SkScalar, SkScalar, const SkPaint*) override; + void onDrawImageRect(const SkImage*, const SkRect*, const SkRect&, const SkPaint*, + SrcRectConstraint) override; + void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*); + void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], + const SkColor[], int count, SkXfermode::Mode, + const SkRect* cull, const SkPaint*) override; + void onDrawImageNine(const SkImage*, const SkIRect& center, + const SkRect& dst, const SkPaint*) override; + + // PASS THROUGH + + void onDrawDrawable(SkDrawable*, const SkMatrix*) override; + SkISize getBaseLayerSize() const override; + bool getClipBounds(SkRect*) const override; + bool getClipDeviceBounds(SkIRect*) const override; + bool isClipEmpty() const override; + bool isClipRect() const override; + SkSurface* onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override; + bool onPeekPixels(SkPixmap*) override; + bool onAccessTopLayerPixels(SkPixmap*) override; + void willSave() override; + SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override; + void willRestore() override; + void didRestore() override; + void didConcat(const SkMatrix&) override; + void didSetMatrix(const SkMatrix&) override; + void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) override; + void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) override; + void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) override; + void onClipRegion(const SkRegion&, SkRegion::Op) override; + void onDiscard() override; + +protected: + SkCanvas* fProxyTarget; +}; + +#endif // SkAndroidSDKCanvas_DEFINED + |