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      1 
      2 /*
      3  * Copyright 2011 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 #include "SampleCode.h"
      9 #include "SkView.h"
     10 #include "SkCanvas.h"
     11 #include "Sk64.h"
     12 #include "SkGradientShader.h"
     13 #include "SkGraphics.h"
     14 #include "SkImageDecoder.h"
     15 #include "SkKernel33MaskFilter.h"
     16 #include "SkPath.h"
     17 #include "SkRandom.h"
     18 #include "SkRegion.h"
     19 #include "SkShader.h"
     20 #include "SkUtils.h"
     21 #include "SkColorPriv.h"
     22 #include "SkColorFilter.h"
     23 #include "SkTime.h"
     24 #include "SkTypeface.h"
     25 #include "SkXfermode.h"
     26 
     27 #include "SkStream.h"
     28 #include "SkXMLParser.h"
     29 
     30 class PointsView : public SampleView {
     31 public:
     32 	PointsView() {}
     33 
     34 protected:
     35     // overrides from SkEventSink
     36     virtual bool onQuery(SkEvent* evt) {
     37         if (SampleCode::TitleQ(*evt)) {
     38             SampleCode::TitleR(evt, "Points");
     39             return true;
     40         }
     41         return this->INHERITED::onQuery(evt);
     42     }
     43 
     44     static void fill_pts(SkPoint pts[], size_t n, SkRandom* rand) {
     45         for (size_t i = 0; i < n; i++)
     46             pts[i].set(rand->nextUScalar1() * 640, rand->nextUScalar1() * 480);
     47     }
     48 
     49     virtual void onDrawContent(SkCanvas* canvas) {
     50         canvas->translate(SK_Scalar1, SK_Scalar1);
     51 
     52         SkRandom rand;
     53         SkPaint  p0, p1, p2, p3;
     54         const size_t n = 99;
     55 
     56         p0.setColor(SK_ColorRED);
     57         p1.setColor(SK_ColorGREEN);
     58         p2.setColor(SK_ColorBLUE);
     59         p3.setColor(SK_ColorWHITE);
     60 
     61         p0.setStrokeWidth(SkIntToScalar(4));
     62         p2.setStrokeCap(SkPaint::kRound_Cap);
     63         p2.setStrokeWidth(SkIntToScalar(6));
     64 
     65         SkPoint* pts = new SkPoint[n];
     66         fill_pts(pts, n, &rand);
     67 
     68         canvas->drawPoints(SkCanvas::kPolygon_PointMode, n, pts, p0);
     69         canvas->drawPoints(SkCanvas::kLines_PointMode, n, pts, p1);
     70         canvas->drawPoints(SkCanvas::kPoints_PointMode, n, pts, p2);
     71         canvas->drawPoints(SkCanvas::kPoints_PointMode, n, pts, p3);
     72 
     73         delete[] pts;
     74     }
     75 
     76 private:
     77 
     78     typedef SampleView INHERITED;
     79 };
     80 
     81 //////////////////////////////////////////////////////////////////////////////
     82 
     83 static SkView* MyFactory() { return new PointsView; }
     84 static SkViewRegister reg(MyFactory);
     85 
     86