1 
2 /*
3  * 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.
7  */
8 #include "SampleCode.h"
9 #include "SkView.h"
10 #include "SkCanvas.h"
11 #include "SkDevice.h"
12 #include "SkPaint.h"
13 #include "SkShader.h"
14 
15 class LCDView : public SkView {
16 public:
LCDView()17     LCDView() {}
18 
19 protected:
20     // overrides from SkEventSink
onQuery(SkEvent * evt)21     virtual bool onQuery(SkEvent* evt) {
22         if (SampleCode::TitleQ(*evt)) {
23             SampleCode::TitleR(evt, "LCD Text");
24             return true;
25         }
26         return this->INHERITED::onQuery(evt);
27     }
28 
drawBG(SkCanvas * canvas)29     void drawBG(SkCanvas* canvas) {
30         canvas->drawColor(SK_ColorWHITE);
31     }
32 
onDraw(SkCanvas * canvas)33     virtual void onDraw(SkCanvas* canvas) {
34         this->drawBG(canvas);
35 
36         SkPaint paint;
37         paint.setAntiAlias(true);
38 
39         SkScalar textSize = SkIntToScalar(6);
40         SkScalar delta = SK_Scalar1;
41         const char* text = "HHHamburgefonts iii";
42         size_t len = strlen(text);
43         SkScalar x0 = SkIntToScalar(10);
44         SkScalar x1 = SkIntToScalar(310);
45         SkScalar y = SkIntToScalar(20);
46 
47         for (int i = 0; i < 20; i++) {
48             paint.setTextSize(textSize);
49             textSize += delta;
50 
51             paint.setLCDRenderText(false);
52             canvas->drawText(text, len, x0, y, paint);
53             paint.setLCDRenderText(true);
54             canvas->drawText(text, len, x1, y, paint);
55 
56             y += paint.getFontSpacing();
57         }
58     }
59 
60 private:
61     typedef SkView INHERITED;
62 };
63 
64 //////////////////////////////////////////////////////////////////////////////
65 
MyFactory()66 static SkView* MyFactory() { return new LCDView; }
67 static SkViewRegister reg(MyFactory);
68