3055b70018
https://codereview.chromium.org/22978012/ git-svn-id: http://skia.googlecode.com/svn/trunk@10830 2bbb7eff-a529-9590-31e7-b0007b416f81
93 lines
4.9 KiB
C++
93 lines
4.9 KiB
C++
#ifndef EXPERIMENTAL_PDFVIEWER_SKNULCANVAS_H_
|
|
#define EXPERIMENTAL_PDFVIEWER_SKNULCANVAS_H_
|
|
|
|
#include "SkCanvas.h"
|
|
|
|
class SK_API SkNulCanvas : public SkCanvas {
|
|
public:
|
|
SK_DECLARE_INST_COUNT(SkNulCanvas);
|
|
|
|
SkNulCanvas() {}
|
|
explicit SkNulCanvas(SkBaseDevice* device) : SkCanvas(device) {}
|
|
|
|
explicit SkNulCanvas(const SkBitmap& bitmap) : SkCanvas(bitmap) {}
|
|
virtual ~SkNulCanvas() {}
|
|
|
|
virtual int save(SaveFlags flags = kMatrixClip_SaveFlag) {return 0;}
|
|
virtual int saveLayer(const SkRect* bounds, const SkPaint* paint,
|
|
SaveFlags flags = kARGB_ClipLayer_SaveFlag) {return 0;}
|
|
int saveLayerAlpha(const SkRect* bounds, U8CPU alpha,
|
|
SaveFlags flags = kARGB_ClipLayer_SaveFlag) {return 0;}
|
|
virtual void restore() {}
|
|
int getSaveCount() const {return 0;}
|
|
virtual bool isDrawingToLayer() const {return false;}
|
|
virtual bool translate(SkScalar dx, SkScalar dy) {return true;}
|
|
virtual bool scale(SkScalar sx, SkScalar sy) {return true;}
|
|
virtual bool rotate(SkScalar degrees) {return true;}
|
|
virtual bool skew(SkScalar sx, SkScalar sy) {return true;}
|
|
virtual bool concat(const SkMatrix& matrix) {return true;}
|
|
virtual void setMatrix(const SkMatrix& matrix) {}
|
|
virtual bool clipRect(const SkRect& rect,
|
|
SkRegion::Op op = SkRegion::kIntersect_Op,
|
|
bool doAntiAlias = false) {return true;}
|
|
virtual bool clipRRect(const SkRRect& rrect,
|
|
SkRegion::Op op = SkRegion::kIntersect_Op,
|
|
bool doAntiAlias = false) {return true;}
|
|
virtual bool clipPath(const SkPath& path,
|
|
SkRegion::Op op = SkRegion::kIntersect_Op,
|
|
bool doAntiAlias = false) {return true;}
|
|
virtual bool clipRegion(const SkRegion& deviceRgn,
|
|
SkRegion::Op op = SkRegion::kIntersect_Op) {return true;}
|
|
virtual void clear(SkColor) {}
|
|
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 drawOval(const SkRect& oval, const SkPaint&) {}
|
|
virtual void drawRRect(const SkRRect& rrect, 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 drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src,
|
|
const SkRect& dst,
|
|
const SkPaint* paint,
|
|
DrawBitmapRectFlags flags) {}
|
|
virtual void drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
|
|
const SkPaint* paint = NULL) {}
|
|
virtual void drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
|
|
const SkRect& dst, 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& picture) {}
|
|
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* data, size_t length) {}
|
|
virtual void beginCommentGroup(const char* description) {}
|
|
virtual void addComment(const char* kywd, const char* value) {}
|
|
virtual void endCommentGroup() {}
|
|
virtual SkBounder* setBounder(SkBounder* bounder) {return NULL;}
|
|
virtual SkDrawFilter* setDrawFilter(SkDrawFilter* filter) {return NULL;}
|
|
|
|
protected:
|
|
virtual SkCanvas* canvasForDrawIter() {return NULL;}
|
|
virtual SkBaseDevice* setDevice(SkBaseDevice* device) {return NULL;}
|
|
|
|
private:
|
|
typedef SkCanvas INHERITED;
|
|
};
|
|
|
|
#endif // EXPERIMENTAL_PDFVIEWER_SKNULCANVAS_H_
|