2011-07-28 14:26:00 +00:00
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/*
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* Copyright 2011 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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2016-07-04 21:28:31 +00:00
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2008-12-17 15:59:43 +00:00
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#ifndef SkDumpCanvas_DEFINED
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#define SkDumpCanvas_DEFINED
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#include "SkCanvas.h"
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/** This class overrides all the draw methods on SkCanvas, and formats them
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as text, and then sends that to a Dumper helper object.
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2012-01-28 01:45:11 +00:00
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2008-12-17 15:59:43 +00:00
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Typical use might be to dump a display list to a log file to see what is
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being drawn.
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*/
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class SkDumpCanvas : public SkCanvas {
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public:
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class Dumper;
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explicit SkDumpCanvas(Dumper* = 0);
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virtual ~SkDumpCanvas();
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enum Verb {
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kNULL_Verb,
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kSave_Verb,
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kRestore_Verb,
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kMatrix_Verb,
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kClip_Verb,
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kDrawPaint_Verb,
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kDrawPoints_Verb,
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kDrawOval_Verb,
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kDrawArc_Verb,
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kDrawRect_Verb,
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kDrawRRect_Verb,
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kDrawDRRect_Verb,
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kDrawPath_Verb,
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kDrawBitmap_Verb,
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kDrawText_Verb,
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kDrawPicture_Verb,
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kDrawVertices_Verb,
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kDrawPatch_Verb,
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kDrawData_Verb, // obsolete
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kDrawAnnotation_Verb,
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kCull_Verb
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};
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/** Subclasses of this are installed on the DumpCanvas, and then called for
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each drawing command.
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*/
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class Dumper : public SkRefCnt {
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public:
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virtual void dump(SkDumpCanvas*, SkDumpCanvas::Verb, const char str[],
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const SkPaint*) = 0;
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private:
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typedef SkRefCnt INHERITED;
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};
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Dumper* getDumper() const { return fDumper; }
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void setDumper(Dumper*);
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2009-06-05 12:24:41 +00:00
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int getNestLevel() const { return fNestLevel; }
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protected:
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void willSave() override;
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SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
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void willRestore() override;
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void didConcat(const SkMatrix&) override;
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void didSetMatrix(const SkMatrix&) override;
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void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
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virtual void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
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const SkPaint&) override;
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virtual void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
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const SkPaint&) override;
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virtual void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
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SkScalar constY, const SkPaint&) override;
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virtual void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path,
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const SkMatrix* matrix, const SkPaint&) override;
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void onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[],
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const SkRect* cull, const SkPaint& paint) override;
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virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
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const SkPaint& paint) override;
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virtual 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) override;
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void onDrawPaint(const SkPaint&) override;
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void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
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void onDrawRect(const SkRect&, const SkPaint&) override;
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void onDrawOval(const SkRect&, const SkPaint&) override;
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void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override;
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void onDrawRRect(const SkRRect&, const SkPaint&) override;
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void onDrawPath(const SkPath&, const SkPaint&) override;
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void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
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void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
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SrcRectConstraint) override;
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void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
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void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
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const SkPaint*, SrcRectConstraint) override;
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void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
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const SkPaint*) override;
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void onDrawVertices(VertexMode vmode, int vertexCount,
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const SkPoint vertices[], const SkPoint texs[],
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const SkColor colors[], SkXfermode* xmode,
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const uint16_t indices[], int indexCount,
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const SkPaint&) override;
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void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) override;
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void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) override;
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void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) override;
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void onClipRegion(const SkRegion&, SkRegion::Op) override;
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void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
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void onDrawAnnotation(const SkRect&, const char key[], SkData* value) override;
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2014-02-28 18:19:39 +00:00
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static const char* EdgeStyleToAAString(ClipEdgeStyle edgeStyle);
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private:
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Dumper* fDumper;
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int fNestLevel; // for nesting recursive elements like pictures
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void dump(Verb, const SkPaint*, const char format[], ...);
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typedef SkCanvas INHERITED;
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};
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/** Formats the draw commands, and send them to a function-pointer provided
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by the caller.
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*/
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class SkFormatDumper : public SkDumpCanvas::Dumper {
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public:
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SkFormatDumper(void (*)(const char text[], void* refcon), void* refcon);
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// override from baseclass that does the formatting, and in turn calls
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// the function pointer that was passed to the constructor
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virtual void dump(SkDumpCanvas*, SkDumpCanvas::Verb, const char str[],
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const SkPaint*) override;
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private:
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void (*fProc)(const char*, void*);
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void* fRefcon;
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typedef SkDumpCanvas::Dumper INHERITED;
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};
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/** Subclass of Dumper that dumps the drawing command to SkDebugf
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*/
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class SkDebugfDumper : public SkFormatDumper {
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public:
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SkDebugfDumper();
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private:
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typedef SkFormatDumper INHERITED;
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};
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#endif
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