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