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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