1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/include/utils/SkProxyCanvas.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,95 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2011 Google Inc.
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +#ifndef SkProxyCanvas_DEFINED
1.12 +#define SkProxyCanvas_DEFINED
1.13 +
1.14 +#include "SkCanvas.h"
1.15 +
1.16 +/** This class overrides all virtual methods on SkCanvas, and redirects them
1.17 + to a "proxy", another SkCanvas instance. It can be the basis for
1.18 + intercepting (and possibly modifying) calls to a canvas.
1.19 +
1.20 + There must be a proxy installed before the proxycanvas can be used (i.e.
1.21 + before its virtual methods can be called).
1.22 + */
1.23 +class SK_API SkProxyCanvas : public SkCanvas {
1.24 +public:
1.25 + SkProxyCanvas() : fProxy(NULL) {}
1.26 + SkProxyCanvas(SkCanvas* proxy);
1.27 + virtual ~SkProxyCanvas();
1.28 +
1.29 + SkCanvas* getProxy() const { return fProxy; }
1.30 + void setProxy(SkCanvas* proxy);
1.31 +
1.32 + virtual void drawPaint(const SkPaint& paint) SK_OVERRIDE;
1.33 + virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[],
1.34 + const SkPaint& paint) SK_OVERRIDE;
1.35 + virtual void drawOval(const SkRect&, const SkPaint& paint) SK_OVERRIDE;
1.36 + virtual void drawRect(const SkRect&, const SkPaint& paint) SK_OVERRIDE;
1.37 + virtual void drawRRect(const SkRRect&, const SkPaint& paint) SK_OVERRIDE;
1.38 + virtual void drawPath(const SkPath& path, const SkPaint& paint) SK_OVERRIDE;
1.39 + virtual void drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
1.40 + const SkPaint* paint = NULL) SK_OVERRIDE;
1.41 + virtual void drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src,
1.42 + const SkRect& dst, const SkPaint* paint,
1.43 + DrawBitmapRectFlags flags) SK_OVERRIDE;
1.44 + virtual void drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
1.45 + const SkPaint* paint = NULL) SK_OVERRIDE;
1.46 + virtual void drawSprite(const SkBitmap& bitmap, int left, int top,
1.47 + const SkPaint* paint = NULL) SK_OVERRIDE;
1.48 + virtual void drawText(const void* text, size_t byteLength, SkScalar x,
1.49 + SkScalar y, const SkPaint& paint) SK_OVERRIDE;
1.50 + virtual void drawPosText(const void* text, size_t byteLength,
1.51 + const SkPoint pos[], const SkPaint& paint) SK_OVERRIDE;
1.52 + virtual void drawPosTextH(const void* text, size_t byteLength,
1.53 + const SkScalar xpos[], SkScalar constY,
1.54 + const SkPaint& paint) SK_OVERRIDE;
1.55 + virtual void drawTextOnPath(const void* text, size_t byteLength,
1.56 + const SkPath& path, const SkMatrix* matrix,
1.57 + const SkPaint& paint) SK_OVERRIDE;
1.58 + virtual void drawPicture(SkPicture&) SK_OVERRIDE;
1.59 + virtual void drawVertices(VertexMode vmode, int vertexCount,
1.60 + const SkPoint vertices[], const SkPoint texs[],
1.61 + const SkColor colors[], SkXfermode* xmode,
1.62 + const uint16_t indices[], int indexCount,
1.63 + const SkPaint& paint) SK_OVERRIDE;
1.64 + virtual void drawData(const void* data, size_t length) SK_OVERRIDE;
1.65 +
1.66 + virtual void beginCommentGroup(const char* description) SK_OVERRIDE;
1.67 + virtual void addComment(const char* kywd, const char* value) SK_OVERRIDE;
1.68 + virtual void endCommentGroup() SK_OVERRIDE;
1.69 +
1.70 + virtual SkBounder* setBounder(SkBounder* bounder) SK_OVERRIDE;
1.71 + virtual SkDrawFilter* setDrawFilter(SkDrawFilter* filter) SK_OVERRIDE;
1.72 +
1.73 +protected:
1.74 + virtual void willSave(SaveFlags) SK_OVERRIDE;
1.75 + virtual SaveLayerStrategy willSaveLayer(const SkRect*, const SkPaint*, SaveFlags) SK_OVERRIDE;
1.76 + virtual void willRestore() SK_OVERRIDE;
1.77 +
1.78 + virtual void didTranslate(SkScalar, SkScalar) SK_OVERRIDE;
1.79 + virtual void didScale(SkScalar, SkScalar) SK_OVERRIDE;
1.80 + virtual void didRotate(SkScalar) SK_OVERRIDE;
1.81 + virtual void didSkew(SkScalar, SkScalar) SK_OVERRIDE;
1.82 + virtual void didConcat(const SkMatrix&) SK_OVERRIDE;
1.83 + virtual void didSetMatrix(const SkMatrix&) SK_OVERRIDE;
1.84 +
1.85 + virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) SK_OVERRIDE;
1.86 +
1.87 + virtual void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
1.88 + virtual void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
1.89 + virtual void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
1.90 + virtual void onClipRegion(const SkRegion&, SkRegion::Op) SK_OVERRIDE;
1.91 +
1.92 +private:
1.93 + SkCanvas* fProxy;
1.94 +
1.95 + typedef SkCanvas INHERITED;
1.96 +};
1.97 +
1.98 +#endif
