axmol/cocos2dx/platform/third_party/qnx/include/grskia/SkDumpCanvas.h

145 lines
5.1 KiB
C++

#ifndef SkDumpCanvas_DEFINED
#define SkDumpCanvas_DEFINED
#include "SkCanvas.h"
/** 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,
kDrawRect_Verb,
kDrawPath_Verb,
kDrawBitmap_Verb,
kDrawText_Verb,
kDrawPicture_Verb,
kDrawVertices_Verb,
kDrawData_Verb
};
/** Subclasses of this are installed on the DumpCanvas, and then called for
each drawing command.
*/
class Dumper : public SkRefCnt {
public:
virtual void dump(SkDumpCanvas*, SkDumpCanvas::Verb, const char str[],
const SkPaint*) = 0;
};
Dumper* getDumper() const { return fDumper; }
void setDumper(Dumper*);
int getNestLevel() const { return fNestLevel; }
// overrides from SkCanvas
virtual int save(SaveFlags flags = kMatrixClip_SaveFlag);
virtual int saveLayer(const SkRect* bounds, const SkPaint* paint,
SaveFlags flags = kARGB_ClipLayer_SaveFlag);
virtual void restore();
virtual bool translate(SkScalar dx, SkScalar dy);
virtual bool scale(SkScalar sx, SkScalar sy);
virtual bool rotate(SkScalar degrees);
virtual bool skew(SkScalar sx, SkScalar sy);
virtual bool concat(const SkMatrix& matrix);
virtual void setMatrix(const SkMatrix& matrix);
virtual bool clipRect(const SkRect& rect,
SkRegion::Op op = SkRegion::kIntersect_Op);
virtual bool clipPath(const SkPath& path,
SkRegion::Op op = SkRegion::kIntersect_Op);
virtual bool clipRegion(const SkRegion& deviceRgn,
SkRegion::Op op = SkRegion::kIntersect_Op);
virtual void drawPaint(const SkPaint& paint);
virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[],
const SkPaint& paint);
virtual void drawRect(const SkRect& rect, const SkPaint& paint);
virtual void drawPath(const SkPath& path, const SkPaint& paint);
virtual void drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
const SkPaint* paint = NULL);
virtual void drawBitmapRect(const SkBitmap& bitmap, const SkIRect* src,
const SkRect& dst, const SkPaint* paint = NULL);
virtual void drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
const SkPaint* paint = NULL);
virtual void drawSprite(const SkBitmap& bitmap, int left, int top,
const SkPaint* paint = NULL);
virtual void drawText(const void* text, size_t byteLength, SkScalar x,
SkScalar y, const SkPaint& paint);
virtual void drawPosText(const void* text, size_t byteLength,
const SkPoint pos[], const SkPaint& paint);
virtual void drawPosTextH(const void* text, size_t byteLength,
const SkScalar xpos[], SkScalar constY,
const SkPaint& paint);
virtual void drawTextOnPath(const void* text, size_t byteLength,
const SkPath& path, const SkMatrix* matrix,
const SkPaint& paint);
virtual void drawPicture(SkPicture&);
virtual void drawVertices(VertexMode vmode, int vertexCount,
const SkPoint vertices[], const SkPoint texs[],
const SkColor colors[], SkXfermode* xmode,
const uint16_t indices[], int indexCount,
const SkPaint& paint);
virtual void drawData(const void*, size_t);
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*);
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