зеркало из https://github.com/mozilla/moz-skia.git
104 строки
3.1 KiB
C++
104 строки
3.1 KiB
C++
#include "SampleCode.h"
|
|
#include "SkView.h"
|
|
#include "SkCanvas.h"
|
|
#include "SkGraphics.h"
|
|
#include "SkRandom.h"
|
|
#include "SkLayerDrawLooper.h"
|
|
#include "SkBlurMaskFilter.h"
|
|
|
|
#include <pthread.h>
|
|
|
|
#define WIDTH 200
|
|
#define HEIGHT 200
|
|
|
|
class LooperView : public SkView {
|
|
public:
|
|
|
|
SkLayerDrawLooper* fLooper;
|
|
|
|
LooperView() {
|
|
static const struct {
|
|
SkColor fColor;
|
|
SkPaint::Style fStyle;
|
|
SkScalar fWidth;
|
|
SkScalar fOffset;
|
|
int fBlur;
|
|
} gParams[] = {
|
|
{ SK_ColorWHITE, SkPaint::kStroke_Style, SkIntToScalar(1)*3/4, 0, 0 },
|
|
{ SK_ColorRED, SkPaint::kStroke_Style, SkIntToScalar(4), 0, 0 },
|
|
{ SK_ColorBLUE, SkPaint::kFill_Style, 0, 0, 0 },
|
|
{ 0x88000000, SkPaint::kFill_Style, 0, SkIntToScalar(10), 3 }
|
|
};
|
|
|
|
fLooper = new SkLayerDrawLooper;
|
|
|
|
for (int i = 0; i < SK_ARRAY_COUNT(gParams); i++) {
|
|
SkPaint* paint = fLooper->addLayer(gParams[i].fOffset,
|
|
gParams[i].fOffset);
|
|
paint->setAntiAlias(true);
|
|
paint->setColor(gParams[i].fColor);
|
|
paint->setStyle(gParams[i].fStyle);
|
|
paint->setStrokeWidth(gParams[i].fWidth);
|
|
paint->setTextSize(SkIntToScalar(72));
|
|
if (gParams[i].fBlur > 0) {
|
|
SkMaskFilter* mf = SkBlurMaskFilter::Create(SkIntToScalar(gParams[i].fBlur),
|
|
SkBlurMaskFilter::kNormal_BlurStyle);
|
|
paint->setMaskFilter(mf)->unref();
|
|
}
|
|
}
|
|
}
|
|
|
|
virtual ~LooperView() {
|
|
fLooper->safeUnref();
|
|
}
|
|
|
|
protected:
|
|
// overrides from SkEventSink
|
|
virtual bool onQuery(SkEvent* evt) {
|
|
if (SampleCode::TitleQ(*evt)) {
|
|
SampleCode::TitleR(evt, "DrawLooper");
|
|
return true;
|
|
}
|
|
return this->INHERITED::onQuery(evt);
|
|
}
|
|
|
|
void drawBG(SkCanvas* canvas) {
|
|
canvas->drawColor(0xFFDDDDDD);
|
|
// canvas->drawColor(SK_ColorWHITE);
|
|
}
|
|
|
|
virtual void onDraw(SkCanvas* canvas) {
|
|
this->drawBG(canvas);
|
|
|
|
SkPaint paint;
|
|
paint.setLooper(fLooper);
|
|
|
|
canvas->drawCircle(SkIntToScalar(50), SkIntToScalar(50),
|
|
SkIntToScalar(30), paint);
|
|
|
|
canvas->drawRectCoords(SkIntToScalar(150), SkIntToScalar(50),
|
|
SkIntToScalar(200), SkIntToScalar(100), paint);
|
|
|
|
canvas->drawText("Looper", 6, SkIntToScalar(230), SkIntToScalar(100),
|
|
paint);
|
|
}
|
|
|
|
virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
|
|
this->inval(NULL);
|
|
return this->INHERITED::onFindClickHandler(x, y);
|
|
}
|
|
|
|
virtual bool onClick(Click* click) {
|
|
return this->INHERITED::onClick(click);
|
|
}
|
|
|
|
private:
|
|
typedef SkView INHERITED;
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static SkView* MyFactory() { return new LooperView; }
|
|
static SkViewRegister reg(MyFactory);
|
|
|