зеркало из https://github.com/mozilla/moz-skia.git
109 строки
2.7 KiB
C++
109 строки
2.7 KiB
C++
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#include "SampleCode.h"
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#include "SkView.h"
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#include "SkCanvas.h"
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#include "SkGradientShader.h"
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#include "SkGraphics.h"
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#include "SkImageDecoder.h"
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#include "SkPath.h"
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#include "SkRegion.h"
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#include "SkShader.h"
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#include "SkUtils.h"
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#include "SkXfermode.h"
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#include "SkColorPriv.h"
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#include "SkColorFilter.h"
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#include "SkTime.h"
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#include "SkTypeface.h"
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#include "SkOSFile.h"
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#include "SkStream.h"
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#define SPECIFIC_IMAGE "/skimages/main.gif"
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class BitmapRectView : public SkView {
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public:
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SkBitmap fBitmap;
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int fCurrX, fCurrY;
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BitmapRectView() {
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SkImageDecoder::DecodeFile(SPECIFIC_IMAGE, &fBitmap);
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fCurrX = fCurrY = 0;
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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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{
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if (SampleCode::TitleQ(*evt))
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{
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SkString str("BitmapRect: ");
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str.append(SPECIFIC_IMAGE);
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SampleCode::TitleR(evt, str.c_str());
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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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{
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canvas->drawColor(SK_ColorGRAY);
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}
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virtual void onDraw(SkCanvas* canvas)
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{
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this->drawBG(canvas);
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canvas->drawBitmap(fBitmap, 0, 0, NULL);
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SkIRect subset;
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const int SRC_WIDTH = 16;
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const int SRC_HEIGHT = 16;
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subset.set(0, 0, SRC_WIDTH, SRC_HEIGHT);
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subset.offset(fCurrX, fCurrY);
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SkDebugf("---- src x=%d y=%d\n", subset.fLeft, subset.fTop);
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SkRect dst0, dst1;
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SkScalar y = SkIntToScalar(fBitmap.height() + 16);
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dst0.set(SkIntToScalar(50), y,
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SkIntToScalar(50+SRC_WIDTH),
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y + SkIntToScalar(SRC_HEIGHT));
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dst1 = dst0;
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dst1.offset(SkIntToScalar(200), 0);
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dst1.fRight = dst1.fLeft + 8 * dst0.width();
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dst1.fBottom = dst1.fTop + 8 * dst0.height();
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canvas->drawBitmapRect(fBitmap, &subset, dst0, NULL);
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canvas->drawBitmapRect(fBitmap, &subset, dst1, NULL);
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SkPaint paint;
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paint.setColor(0x88FF0000);
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canvas->drawRect(dst0, paint);
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paint.setColor(0x880000FF);
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canvas->drawRect(dst1, paint);
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}
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virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y)
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{
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return new Click(this);
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}
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virtual bool onClick(Click* click)
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{
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fCurrX = click->fICurr.fX;
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fCurrY = click->fICurr.fY;
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this->inval(NULL);
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return true;
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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 BitmapRectView; }
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static SkViewRegister reg(MyFactory);
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