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