third_party/WebKit/Source/platform/graphics/LoggingCanvas.h

   1 /*
   2  * Copyright (C) 2013 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef LoggingCanvas_h
  32 #define LoggingCanvas_h
  33
  34 #include "platform/JSONValues.h"
  35 #include "platform/graphics/InterceptingCanvas.h"
  36
  37 namespace blink {
  38
  39 class LoggingCanvas : public InterceptingCanvasBase {
  40 public:
  41     LoggingCanvas(int width, int height);
  42     PassRefPtr<JSONArray> log();
  43
  44     void onDrawPaint(const SkPaint&) override;
  45     void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
  46     void onDrawRect(const SkRect&, const SkPaint&) override;
  47     void onDrawOval(const SkRect&, const SkPaint&) override;
  48     void onDrawRRect(const SkRRect&, const SkPaint&) override;
  49     void onDrawPath(const SkPath&, const SkPaint&) override;
  50     void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
  51     void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*, SrcRectConstraint) override;
  52     void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst, const SkPaint*) override;
  53     void onDrawImage(const SkImage*, SkScalar, SkScalar, const SkPaint*) override;
  54     void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst, const SkPaint*, SrcRectConstraint) override;
  55     void onDrawSprite(const SkBitmap&, int left, int top, const SkPaint*) override;
  56     virtual void onDrawVertices(VertexMode vmode, int vertexCount, const SkPoint vertices[], const SkPoint texs[],
  57         const SkColor colors[], SkXfermode* xmode, const uint16_t indices[], int indexCount, const SkPaint&) override;
  58
  59     void onDrawDRRect(const SkRRect& outer, const SkRRect& inner, const SkPaint&) override;
  60     void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, const SkPaint&) override;
  61     void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], const SkPaint&) override;
  62     void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], SkScalar constY, const SkPaint&) override;
  63     void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath&, const SkMatrix*, const SkPaint&) override;
  64     void onDrawTextBlob(const SkTextBlob*, SkScalar x, SkScalar y, const SkPaint&) override;
  65     void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) override;
  66     void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) override;
  67     void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) override;
  68     void onClipRegion(const SkRegion&, SkRegion::Op) override;
  69     virtual void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*);
  70     void didSetMatrix(const SkMatrix&) override;
  71     void didConcat(const SkMatrix&) override;
  72     void willSave() override;
  73     SaveLayerStrategy willSaveLayer(const SkRect* bounds, const SkPaint*, SaveFlags) override;
  74     void willRestore() override;
  75
  76 private:
  77     friend class AutoLogger;
  78
  79     RefPtr<JSONArray> m_log;
  80 };
  81
  82 #ifndef NDEBUG
  83 String pictureAsDebugString(const SkPicture*);
  84 void showSkPicture(const SkPicture*);
  85 #endif
  86
  87 } // namespace blink
  88
  89 #endif // LoggingCanvas_h