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#include "SampleCode.h"
#include "SkView.h"
#include "SkCanvas.h"
#include "Sk64.h"
#include "SkGradientShader.h"
#include "SkGraphics.h"
#include "SkImageDecoder.h"
#include "SkKernel33MaskFilter.h"
#include "SkPath.h"
#include "SkPicture.h"
#include "SkRandom.h"
#include "SkRegion.h"
#include "SkShader.h"
#include "SkUtils.h"
#include "SkColorPriv.h"
#include "SkColorFilter.h"
#include "SkTime.h"
#include "SkTypeface.h"
#include "SkXfermode.h"
#include "SkStream.h"
#include "SkXMLParser.h"
static void drawCircle(SkCanvas* canvas, int r, SkColor color) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(color);
canvas->drawCircle(SkIntToScalar(r), SkIntToScalar(r), SkIntToScalar(r),
paint);
}
class PictureView : public SkView {
public:
PictureView() {
fPicture = new SkPicture;
SkCanvas* canvas = fPicture->beginRecording(100, 100);
SkPaint paint;
paint.setAntiAlias(true);
drawCircle(canvas, 50, SK_ColorBLACK);
fSubPicture = new SkPicture;
canvas->drawPicture(*fSubPicture);
canvas->translate(SkIntToScalar(50), 0);
canvas->drawPicture(*fSubPicture);
canvas->translate(0, SkIntToScalar(50));
canvas->drawPicture(*fSubPicture);
canvas->translate(SkIntToScalar(-50), 0);
canvas->drawPicture(*fSubPicture);
// fPicture now has (4) references to us. We can release ours, and just
// unref fPicture in our destructor, and it will in turn take care of
// the other references to fSubPicture
fSubPicture->unref();
}
virtual ~PictureView() {
fPicture->unref();
}
protected:
// overrides from SkEventSink
virtual bool onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "Picture");
return true;
}
return this->INHERITED::onQuery(evt);
}
void drawBG(SkCanvas* canvas) {
// canvas->drawColor(0xFFDDDDDD);
canvas->drawColor(SK_ColorWHITE);
// canvas->drawColor(SK_ColorBLACK);
}
void drawSomething(SkCanvas* canvas) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(SK_ColorRED);
canvas->drawCircle(SkIntToScalar(50), SkIntToScalar(50),
SkIntToScalar(40), paint);
paint.setColor(SK_ColorBLACK);
paint.setTextSize(SkIntToScalar(40));
canvas->drawText("Picture", 7, SkIntToScalar(50), SkIntToScalar(62),
paint);
}
virtual void onDraw(SkCanvas* canvas) {
this->drawBG(canvas);
drawSomething(canvas);
SkPicture* pict = new SkPicture;
SkAutoUnref aur(pict);
drawSomething(pict->beginRecording(100, 100));
pict->endRecording();
canvas->save();
canvas->translate(SkIntToScalar(300), SkIntToScalar(50));
canvas->scale(-SK_Scalar1, -SK_Scalar1);
canvas->translate(-SkIntToScalar(100), -SkIntToScalar(50));
canvas->drawPicture(*pict);
canvas->restore();
canvas->save();
canvas->translate(SkIntToScalar(200), SkIntToScalar(150));
canvas->scale(SK_Scalar1, -SK_Scalar1);
canvas->translate(0, -SkIntToScalar(50));
canvas->drawPicture(*pict);
canvas->restore();
canvas->save();
canvas->translate(SkIntToScalar(100), SkIntToScalar(100));
canvas->scale(-SK_Scalar1, SK_Scalar1);
canvas->translate(-SkIntToScalar(100), 0);
canvas->drawPicture(*pict);
canvas->restore();
// test that we can re-record a subpicture, and see the results
canvas->translate(SkIntToScalar(10), SkIntToScalar(250));
drawCircle(fSubPicture->beginRecording(50, 50), 25,
fRand.nextU() | 0xFF000000);
canvas->drawPicture(*fPicture);
delayInval(500);
}
private:
#define INVAL_ALL_TYPE "inval-all"
void delayInval(SkMSec delay) {
(new SkEvent(INVAL_ALL_TYPE))->post(this->getSinkID(), delay);
}
virtual bool onEvent(const SkEvent& evt) {
if (evt.isType(INVAL_ALL_TYPE)) {
this->inval(NULL);
return true;
}
return this->INHERITED::onEvent(evt);
}
SkPicture* fPicture;
SkPicture* fSubPicture;
SkRandom fRand;
typedef SkView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() { return new PictureView; }
static SkViewRegister reg(MyFactory);
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