| |
| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| #ifndef SkDumpCanvas_DEFINED |
| #define SkDumpCanvas_DEFINED |
| |
| #include "SkCanvas.h" |
| |
| #ifdef SK_DEVELOPER |
| |
| /** This class overrides all the draw methods on SkCanvas, and formats them |
| as text, and then sends that to a Dumper helper object. |
| |
| Typical use might be to dump a display list to a log file to see what is |
| being drawn. |
| */ |
| class SkDumpCanvas : public SkCanvas { |
| public: |
| class Dumper; |
| |
| explicit SkDumpCanvas(Dumper* = 0); |
| virtual ~SkDumpCanvas(); |
| |
| enum Verb { |
| kNULL_Verb, |
| |
| kSave_Verb, |
| kRestore_Verb, |
| |
| kMatrix_Verb, |
| |
| kClip_Verb, |
| |
| kDrawPaint_Verb, |
| kDrawPoints_Verb, |
| kDrawOval_Verb, |
| kDrawRect_Verb, |
| kDrawRRect_Verb, |
| kDrawDRRect_Verb, |
| kDrawPath_Verb, |
| kDrawBitmap_Verb, |
| kDrawText_Verb, |
| kDrawPicture_Verb, |
| kDrawVertices_Verb, |
| kDrawPatch_Verb, |
| kDrawData_Verb, // obsolete |
| |
| kCull_Verb |
| }; |
| |
| /** Subclasses of this are installed on the DumpCanvas, and then called for |
| each drawing command. |
| */ |
| class Dumper : public SkRefCnt { |
| public: |
| SK_DECLARE_INST_COUNT(Dumper) |
| |
| virtual void dump(SkDumpCanvas*, SkDumpCanvas::Verb, const char str[], |
| const SkPaint*) = 0; |
| |
| private: |
| typedef SkRefCnt INHERITED; |
| }; |
| |
| Dumper* getDumper() const { return fDumper; } |
| void setDumper(Dumper*); |
| |
| int getNestLevel() const { return fNestLevel; } |
| |
| protected: |
| void willSave() override; |
| SaveLayerStrategy willSaveLayer(const SkRect*, const SkPaint*, SaveFlags) override; |
| void willRestore() override; |
| |
| void didConcat(const SkMatrix&) override; |
| void didSetMatrix(const SkMatrix&) override; |
| |
| void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override; |
| virtual void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, |
| const SkPaint&) override; |
| virtual void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], |
| const SkPaint&) override; |
| virtual void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], |
| SkScalar constY, const SkPaint&) override; |
| virtual void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path, |
| const SkMatrix* matrix, const SkPaint&) override; |
| virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, |
| const SkPaint& paint) override; |
| virtual void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], |
| const SkPoint texCoords[4], SkXfermode* xmode, |
| const SkPaint& paint) override; |
| |
| void onDrawPaint(const SkPaint&) override; |
| void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override; |
| void onDrawRect(const SkRect&, const SkPaint&) override; |
| void onDrawOval(const SkRect&, const SkPaint&) override; |
| void onDrawRRect(const SkRRect&, const SkPaint&) override; |
| void onDrawPath(const SkPath&, const SkPaint&) override; |
| void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override; |
| void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*, |
| DrawBitmapRectFlags flags) override; |
| void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override; |
| void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst, |
| const SkPaint*) override; |
| void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst, |
| const SkPaint*) override; |
| void onDrawSprite(const SkBitmap&, int left, int top, const SkPaint*) 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&) 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 onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override; |
| |
| static const char* EdgeStyleToAAString(ClipEdgeStyle edgeStyle); |
| |
| private: |
| Dumper* fDumper; |
| int fNestLevel; // for nesting recursive elements like pictures |
| |
| void dump(Verb, const SkPaint*, const char format[], ...); |
| |
| typedef SkCanvas INHERITED; |
| }; |
| |
| /** Formats the draw commands, and send them to a function-pointer provided |
| by the caller. |
| */ |
| class SkFormatDumper : public SkDumpCanvas::Dumper { |
| public: |
| SkFormatDumper(void (*)(const char text[], void* refcon), void* refcon); |
| |
| // override from baseclass that does the formatting, and in turn calls |
| // the function pointer that was passed to the constructor |
| virtual void dump(SkDumpCanvas*, SkDumpCanvas::Verb, const char str[], |
| const SkPaint*) override; |
| |
| private: |
| void (*fProc)(const char*, void*); |
| void* fRefcon; |
| |
| typedef SkDumpCanvas::Dumper INHERITED; |
| }; |
| |
| /** Subclass of Dumper that dumps the drawing command to SkDebugf |
| */ |
| class SkDebugfDumper : public SkFormatDumper { |
| public: |
| SkDebugfDumper(); |
| |
| private: |
| typedef SkFormatDumper INHERITED; |
| }; |
| |
| #endif |
| |
| #endif |