1 #include "SampleCode.h"
2 #include "SkView.h"
3 #include "SkCanvas.h"
4 #include "Sk64.h"
5 #include "SkCornerPathEffect.h"
6 #include "SkGradientShader.h"
7 #include "SkGraphics.h"
8 #include "SkImageDecoder.h"
9 #include "SkKernel33MaskFilter.h"
10 #include "SkPath.h"
11 #include "SkRandom.h"
12 #include "SkRegion.h"
13 #include "SkShader.h"
14 #include "SkUtils.h"
15 #include "SkColorPriv.h"
16 #include "SkColorFilter.h"
17 #include "SkTime.h"
18 #include "SkTypeface.h"
19 #include "SkXfermode.h"
20
21 #include "SkStream.h"
22 #include "SkXMLParser.h"
23 #include "SkColorPriv.h"
24 #include "SkImageDecoder.h"
25
26 class LinesView : public SampleView {
27 public:
LinesView()28 LinesView() {}
29
30 protected:
31 // overrides from SkEventSink
onQuery(SkEvent * evt)32 virtual bool onQuery(SkEvent* evt) {
33 if (SampleCode::TitleQ(*evt)) {
34 SampleCode::TitleR(evt, "Lines");
35 return true;
36 }
37 return this->INHERITED::onQuery(evt);
38 }
39
40 /*
41 0x1F * x + 0x1F * (32 - x)
42 */
drawRings(SkCanvas * canvas)43 void drawRings(SkCanvas* canvas) {
44 canvas->scale(SkIntToScalar(1)/2, SkIntToScalar(1)/2);
45
46 SkRect r;
47 SkScalar x = SkIntToScalar(10);
48 SkScalar y = SkIntToScalar(10);
49 r.set(x, y, x + SkIntToScalar(100), y + SkIntToScalar(100));
50
51 SkPaint paint;
52 // paint.setAntiAlias(true);
53 paint.setStyle(SkPaint::kStroke_Style);
54 paint.setStrokeWidth(SkScalarHalf(SkIntToScalar(3)));
55 paint.setColor(0xFFFF8800);
56 // paint.setColor(0xFFFFFFFF);
57 canvas->drawRect(r, paint);
58 }
59
onDrawContent(SkCanvas * canvas)60 virtual void onDrawContent(SkCanvas* canvas) {
61 SkBitmap bm;
62 SkImageDecoder::DecodeFile("/kill.gif", &bm);
63 canvas->drawBitmap(bm, 0, 0, NULL);
64
65 this->drawRings(canvas);
66 return;
67
68 SkPaint paint;
69
70 // fAlpha = 0x80;
71 paint.setColor(SK_ColorWHITE);
72 paint.setAlpha(fAlpha & 0xFF);
73 SkRect r;
74
75 SkScalar x = SkIntToScalar(10);
76 SkScalar y = SkIntToScalar(10);
77 r.set(x, y, x + SkIntToScalar(100), y + SkIntToScalar(100));
78 canvas->drawRect(r, paint);
79 return;
80
81 paint.setColor(0xffffff00); // yellow
82 paint.setStyle(SkPaint::kStroke_Style);
83 paint.setStrokeWidth(SkIntToScalar(2));
84
85 // y += SK_Scalar1/2;
86
87 canvas->drawLine(x, y, x + SkIntToScalar(90), y + SkIntToScalar(90), paint);
88
89 paint.setAntiAlias(true); // with anti-aliasing
90 y += SkIntToScalar(10);
91 canvas->drawLine(x, y, x + SkIntToScalar(90), y + SkIntToScalar(90), paint);
92 }
93
onFindClickHandler(SkScalar x,SkScalar y)94 virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
95 fAlpha = SkScalarRound(y);
96 this->inval(NULL);
97 return NULL;
98 }
99 private:
100
101 int fAlpha;
102 typedef SampleView INHERITED;
103 };
104
105 //////////////////////////////////////////////////////////////////////////////
106
MyFactory()107 static SkView* MyFactory() { return new LinesView; }
108 static SkViewRegister reg(MyFactory);
109
110