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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkRecordDraw_DEFINED
#define SkRecordDraw_DEFINED
#include "SkBBoxHierarchy.h"
#include "SkCanvas.h"
#include "SkDrawPictureCallback.h"
#include "SkRecord.h"
// Fill a BBH to be used by SkRecordDraw to accelerate playback.
void SkRecordFillBounds(const SkRecord&, SkBBoxHierarchy*);
// Draw an SkRecord into an SkCanvas. A convenience wrapper around SkRecords::Draw.
void SkRecordDraw(const SkRecord&, SkCanvas*, const SkBBoxHierarchy*, SkDrawPictureCallback*);
// Draw a portion of an SkRecord into an SkCanvas while replacing clears with drawRects.
void SkRecordPartialDraw(const SkRecord&, SkCanvas*, const SkRect&, unsigned start, unsigned stop);
namespace SkRecords {
// This is an SkRecord visitor that will draw that SkRecord to an SkCanvas.
class Draw : SkNoncopyable {
public:
explicit Draw(SkCanvas* canvas)
: fInitialCTM(canvas->getTotalMatrix()), fCanvas(canvas) {}
template <typename T> void operator()(const T& r) {
this->draw(r);
}
private:
// No base case, so we'll be compile-time checked that we implement all possibilities.
template <typename T> void draw(const T&);
const SkMatrix fInitialCTM;
SkCanvas* fCanvas;
};
// Used by SkRecordPartialDraw.
class PartialDraw : public Draw {
public:
PartialDraw(SkCanvas* canvas, const SkRect& clearRect)
: INHERITED(canvas), fClearRect(clearRect) {}
// Same as Draw for all ops except Clear.
template <typename T> void operator()(const T& r) {
this->INHERITED::operator()(r);
}
void operator()(const Clear& c) {
SkPaint p;
p.setColor(c.color);
DrawRect drawRect(p, fClearRect);
this->INHERITED::operator()(drawRect);
}
private:
const SkRect fClearRect;
typedef Draw INHERITED;
};
} // namespace SkRecords
#endif//SkRecordDraw_DEFINED
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