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epoger@google.comec3ed6a2011-07-28 14:26:00 +00001
mike@reedtribe.orgf2c21cd2011-06-18 00:15:04 +00002/*
epoger@google.comec3ed6a2011-07-28 14:26:00 +00003 * 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.
mike@reedtribe.orgf2c21cd2011-06-18 00:15:04 +00007 */
8
9
epoger@google.comec3ed6a2011-07-28 14:26:00 +000010
mike@reedtribe.orgf2c21cd2011-06-18 00:15:04 +000011#include "gm.h"
12#include "SkRandom.h"
13
14namespace skiagm {
15
16#define W 400
17#define H 400
18#define N 50
19
20static const SkScalar SW = SkIntToScalar(W);
21static const SkScalar SH = SkIntToScalar(H);
22
23static void rnd_rect(SkRect* r, SkPaint* paint, SkRandom& rand) {
24 SkScalar x = rand.nextUScalar1() * W;
25 SkScalar y = rand.nextUScalar1() * H;
26 SkScalar w = rand.nextUScalar1() * (W >> 2);
27 SkScalar h = rand.nextUScalar1() * (H >> 2);
epoger@google.com17b78942011-08-26 14:40:38 +000028 SkScalar hoffset = rand.nextSScalar1();
29 SkScalar woffset = rand.nextSScalar1();
mike@reedtribe.orgf2c21cd2011-06-18 00:15:04 +000030
31 r->set(x, y, x + w, y + h);
epoger@google.com17b78942011-08-26 14:40:38 +000032 r->offset(-w/2 + woffset, -h/2 + hoffset);
mike@reedtribe.orgf2c21cd2011-06-18 00:15:04 +000033
34 paint->setColor(rand.nextU());
35 paint->setAlpha(0xFF);
36}
37
38
39class StrokesGM : public GM {
40public:
41 StrokesGM() {}
42
43protected:
44 virtual SkString onShortName() {
45 return SkString("strokes_round");
46 }
47
48 virtual SkISize onISize() {
49 return make_isize(W, H*2);
50 }
51
bsalomon@google.com48dd1a22011-10-31 14:18:20 +000052 virtual void onDraw(SkCanvas* canvas) {
mike@reedtribe.orgf2c21cd2011-06-18 00:15:04 +000053 SkPaint paint;
54 paint.setStyle(SkPaint::kStroke_Style);
55 paint.setStrokeWidth(SkIntToScalar(9)/2);
56
57 for (int y = 0; y < 2; y++) {
58 paint.setAntiAlias(!!y);
59 SkAutoCanvasRestore acr(canvas, true);
60 canvas->translate(0, SH * y);
61 canvas->clipRect(SkRect::MakeLTRB(
62 SkIntToScalar(2), SkIntToScalar(2)
63 , SW - SkIntToScalar(2), SH - SkIntToScalar(2)
64 ));
65
66 SkRandom rand;
67 for (int i = 0; i < N; i++) {
68 SkRect r;
69 rnd_rect(&r, &paint, rand);
70 canvas->drawOval(r, paint);
71 rnd_rect(&r, &paint, rand);
72 canvas->drawRoundRect(r, r.width()/4, r.height()/4, paint);
73 rnd_rect(&r, &paint, rand);
74 }
75 }
76 }
77
78private:
79 typedef GM INHERITED;
80};
81
82class Strokes2GM : public GM {
83 SkPath fPath;
84public:
85 Strokes2GM() {
86 SkRandom rand;
87 fPath.moveTo(0, 0);
88 for (int i = 0; i < 13; i++) {
89 SkScalar x = rand.nextUScalar1() * (W >> 1);
90 SkScalar y = rand.nextUScalar1() * (H >> 1);
91 fPath.lineTo(x, y);
92 }
93 }
94
95protected:
96 virtual SkString onShortName() {
97 return SkString("strokes_poly");
98 }
99
100 virtual SkISize onISize() {
101 return make_isize(W, H*2);
102 }
103
104 static void rotate(SkScalar angle, SkScalar px, SkScalar py, SkCanvas* canvas) {
105 SkMatrix matrix;
106 matrix.setRotate(angle, px, py);
107 canvas->concat(matrix);
108 }
109
110 virtual void onDraw(SkCanvas* canvas) {
111 canvas->drawColor(SK_ColorWHITE);
112
113 SkPaint paint;
114 paint.setStyle(SkPaint::kStroke_Style);
115 paint.setStrokeWidth(SkIntToScalar(9)/2);
116
117 for (int y = 0; y < 2; y++) {
118 paint.setAntiAlias(!!y);
119 SkAutoCanvasRestore acr(canvas, true);
120 canvas->translate(0, SH * y);
121 canvas->clipRect(SkRect::MakeLTRB(SkIntToScalar(2),
122 SkIntToScalar(2),
123 SW - SkIntToScalar(2),
124 SH - SkIntToScalar(2)));
125
126 SkRandom rand;
127 for (int i = 0; i < N/2; i++) {
128 SkRect r;
129 rnd_rect(&r, &paint, rand);
130 rotate(SkIntToScalar(15), SW/2, SH/2, canvas);
131 canvas->drawPath(fPath, paint);
132 }
133 }
134 }
135
136private:
137 typedef GM INHERITED;
138};
139
140//////////////////////////////////////////////////////////////////////////////
141
142static GM* MyFactory(void*) { return new StrokesGM; }
143static GMRegistry reg(MyFactory);
144
145static GM* MyFactory2(void*) { return new Strokes2GM; }
146static GMRegistry reg2(MyFactory2);
147
148}
149