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      1 #include "SampleCode.h"
      2 #include "SkView.h"
      3 #include "SkCanvas.h"
      4 #include "Sk64.h"
      5 #include "SkCornerPathEffect.h"
      6 #include "SkGradientShader.h"
      7 #include "SkGraphics.h"
      8 #include "SkImageDecoder.h"
      9 #include "SkKernel33MaskFilter.h"
     10 #include "SkPath.h"
     11 #include "SkRandom.h"
     12 #include "SkRegion.h"
     13 #include "SkShader.h"
     14 #include "SkUtils.h"
     15 #include "SkColorPriv.h"
     16 #include "SkColorFilter.h"
     17 #include "SkTime.h"
     18 #include "SkTypeface.h"
     19 #include "SkXfermode.h"
     20 
     21 #include "SkStream.h"
     22 #include "SkXMLParser.h"
     23 #include "SkColorPriv.h"
     24 #include "SkImageDecoder.h"
     25 
     26 class LinesView : public SampleView {
     27 public:
     28 	LinesView() {}
     29 
     30 protected:
     31     // overrides from SkEventSink
     32     virtual bool onQuery(SkEvent* evt) {
     33         if (SampleCode::TitleQ(*evt)) {
     34             SampleCode::TitleR(evt, "Lines");
     35             return true;
     36         }
     37         return this->INHERITED::onQuery(evt);
     38     }
     39 
     40     /*
     41      0x1F * x + 0x1F * (32 - x)
     42      */
     43     void drawRings(SkCanvas* canvas) {
     44         canvas->scale(SkIntToScalar(1)/2, SkIntToScalar(1)/2);
     45 
     46         SkRect  r;
     47         SkScalar x = SkIntToScalar(10);
     48         SkScalar y = SkIntToScalar(10);
     49         r.set(x, y, x + SkIntToScalar(100), y + SkIntToScalar(100));
     50 
     51         SkPaint paint;
     52      //   paint.setAntiAlias(true);
     53         paint.setStyle(SkPaint::kStroke_Style);
     54         paint.setStrokeWidth(SkScalarHalf(SkIntToScalar(3)));
     55         paint.setColor(0xFFFF8800);
     56      //   paint.setColor(0xFFFFFFFF);
     57         canvas->drawRect(r, paint);
     58     }
     59 
     60     virtual void onDrawContent(SkCanvas* canvas) {
     61         SkBitmap bm;
     62         SkImageDecoder::DecodeFile("/kill.gif", &bm);
     63         canvas->drawBitmap(bm, 0, 0, NULL);
     64 
     65         this->drawRings(canvas);
     66         return;
     67 
     68         SkPaint paint;
     69 
     70       //  fAlpha = 0x80;
     71         paint.setColor(SK_ColorWHITE);
     72         paint.setAlpha(fAlpha & 0xFF);
     73         SkRect r;
     74 
     75         SkScalar x = SkIntToScalar(10);
     76         SkScalar y = SkIntToScalar(10);
     77         r.set(x, y, x + SkIntToScalar(100), y + SkIntToScalar(100));
     78         canvas->drawRect(r, paint);
     79         return;
     80 
     81         paint.setColor(0xffffff00);            // yellow
     82         paint.setStyle(SkPaint::kStroke_Style);
     83         paint.setStrokeWidth(SkIntToScalar(2));
     84 
     85 //        y += SK_Scalar1/2;
     86 
     87         canvas->drawLine(x, y, x + SkIntToScalar(90), y + SkIntToScalar(90), paint);
     88 
     89         paint.setAntiAlias(true);              // with anti-aliasing
     90         y += SkIntToScalar(10);
     91         canvas->drawLine(x, y, x + SkIntToScalar(90), y + SkIntToScalar(90), paint);
     92     }
     93 
     94     virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
     95         fAlpha = SkScalarRound(y);
     96         this->inval(NULL);
     97         return NULL;
     98     }
     99 private:
    100 
    101     int fAlpha;
    102     typedef SampleView INHERITED;
    103 };
    104 
    105 //////////////////////////////////////////////////////////////////////////////
    106 
    107 static SkView* MyFactory() { return new LinesView; }
    108 static SkViewRegister reg(MyFactory);
    109 
    110