mirror of https://github.com/axmolengine/axmol.git
145 lines
5.1 KiB
C++
145 lines
5.1 KiB
C++
#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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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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kDrawRect_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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kDrawData_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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};
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Dumper* getDumper() const { return fDumper; }
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void setDumper(Dumper*);
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int getNestLevel() const { return fNestLevel; }
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// overrides from SkCanvas
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virtual int save(SaveFlags flags = kMatrixClip_SaveFlag);
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virtual int saveLayer(const SkRect* bounds, const SkPaint* paint,
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SaveFlags flags = kARGB_ClipLayer_SaveFlag);
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virtual void restore();
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virtual bool translate(SkScalar dx, SkScalar dy);
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virtual bool scale(SkScalar sx, SkScalar sy);
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virtual bool rotate(SkScalar degrees);
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virtual bool skew(SkScalar sx, SkScalar sy);
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virtual bool concat(const SkMatrix& matrix);
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virtual void setMatrix(const SkMatrix& matrix);
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virtual bool clipRect(const SkRect& rect,
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SkRegion::Op op = SkRegion::kIntersect_Op);
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virtual bool clipPath(const SkPath& path,
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SkRegion::Op op = SkRegion::kIntersect_Op);
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virtual bool clipRegion(const SkRegion& deviceRgn,
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SkRegion::Op op = SkRegion::kIntersect_Op);
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virtual void drawPaint(const SkPaint& paint);
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virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[],
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const SkPaint& paint);
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virtual void drawRect(const SkRect& rect, const SkPaint& paint);
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virtual void drawPath(const SkPath& path, const SkPaint& paint);
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virtual void drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
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const SkPaint* paint = NULL);
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virtual void drawBitmapRect(const SkBitmap& bitmap, const SkIRect* src,
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const SkRect& dst, const SkPaint* paint = NULL);
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virtual void drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
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const SkPaint* paint = NULL);
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virtual void drawSprite(const SkBitmap& bitmap, int left, int top,
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const SkPaint* paint = NULL);
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virtual void drawText(const void* text, size_t byteLength, SkScalar x,
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SkScalar y, const SkPaint& paint);
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virtual void drawPosText(const void* text, size_t byteLength,
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const SkPoint pos[], const SkPaint& paint);
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virtual void drawPosTextH(const void* text, size_t byteLength,
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const SkScalar xpos[], SkScalar constY,
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const SkPaint& paint);
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virtual void drawTextOnPath(const void* text, size_t byteLength,
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const SkPath& path, const SkMatrix* matrix,
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const SkPaint& paint);
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virtual void drawPicture(SkPicture&);
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virtual void drawVertices(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& paint);
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virtual void drawData(const void*, size_t);
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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*);
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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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