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