da6fb3246a
git-svn-id: http://skia.googlecode.com/svn/trunk@503 2bbb7eff-a529-9590-31e7-b0007b416f81
93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
#include "SampleCode.h"
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#include "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkView.h"
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#include "SkLayer.h"
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///////////////////////////////////////////////////////////////////////////////
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class TestLayer : public SkLayer {
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public:
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TestLayer(SkColor c) : fColor(c) {}
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protected:
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virtual void onDraw(SkCanvas* canvas, SkScalar opacity) {
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SkRect r;
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r.set(0, 0, this->getWidth(), this->getHeight());
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SkPaint paint;
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paint.setColor(fColor);
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paint.setAlpha(SkScalarRound(opacity * 255));
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canvas->drawRect(r, paint);
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}
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private:
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SkColor fColor;
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};
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class SkLayerView : public SkView {
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private:
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SkLayer* fRootLayer;
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public:
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SkLayerView() {
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static const int W = 640;
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static const int H = 480;
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static const struct {
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int fWidth;
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int fHeight;
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SkColor fColor;
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int fPosX;
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int fPosY;
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} gData[] = {
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{ 120, 80, SK_ColorRED, 0, 0 },
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{ 120, 80, SK_ColorGREEN, W - 120, 0 },
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{ 120, 80, SK_ColorBLUE, 0, H - 80 },
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{ 120, 80, SK_ColorMAGENTA, W - 120, H - 80 },
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};
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fRootLayer = new SkLayer;
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fRootLayer->setSize(W, H);
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for (size_t i = 0; i < SK_ARRAY_COUNT(gData); i++) {
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SkLayer* child = new TestLayer(gData[i].fColor);
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child->setSize(gData[i].fWidth, gData[i].fHeight);
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child->setPosition(gData[i].fPosX, gData[i].fPosY);
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fRootLayer->addChild(child)->unref();
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}
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}
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virtual ~SkLayerView() {
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SkSafeUnref(fRootLayer);
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}
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protected:
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// overrides from SkEventSink
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virtual bool onQuery(SkEvent* evt) {
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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, "SkLayer");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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void drawBG(SkCanvas* canvas) {
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canvas->drawColor(0xFFDDDDDD);
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fRootLayer->draw(canvas);
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}
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virtual void onDraw(SkCanvas* canvas) {
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this->drawBG(canvas);
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}
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private:
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typedef SkView INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new SkLayerView; }
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static SkViewRegister reg(MyFactory);
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