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1 | |
2 /* | |
3 * Copyright 2014 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 | |
9 #include "gm.h" | |
10 #include "SampleCode.h" | |
11 #include "SkBlurMaskFilter.h" | |
12 #include "SkColorPriv.h" | |
13 #include "SkCanvas.h" | |
14 #include "SkImageDecoder.h" | |
15 #include "SkRandom.h" | |
16 #include "SkStream.h" | |
17 | |
18 | |
robertphillips
2014/05/29 21:18:23
// comment - maybe include bug # ?
humper
2014/05/29 21:54:51
Done.
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19 class SubpixelTranslateView : public SampleView { | |
20 public: | |
robertphillips
2014/05/29 21:18:23
overlength ?
humper
2014/05/29 21:54:51
Done.
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21 SubpixelTranslateView(const char imageFilename[], float horizontalVelocity, float verticalVelocity) | |
22 : fFilename(imageFilename), | |
23 fHorizontalVelocity(horizontalVelocity), | |
24 fVerticalVelocity(verticalVelocity) { | |
25 SkString path(skiagm::GM::GetResourcePath()); | |
26 path.append("/"); | |
27 path.append(fFilename); | |
28 | |
29 SkImageDecoder *codec = NULL; | |
30 SkFILEStream stream(path.c_str()); | |
31 if (stream.isValid()) { | |
32 codec = SkImageDecoder::Factory(&stream); | |
33 } | |
34 if (codec) { | |
35 stream.rewind(); | |
36 codec->decode(&stream, &fBM, SkBitmap::kARGB_8888_Config, | |
37 SkImageDecoder::kDecodePixels_Mode); | |
38 SkDELETE(codec); | |
39 } else { | |
40 fBM.allocN32Pixels(1, 1); | |
41 *(fBM.getAddr32(0,0)) = 0xFF0000FF; // red == bad | |
42 } | |
43 fCurPos = SkPoint::Make(0,0); | |
44 fSize = 200; | |
45 } | |
46 | |
47 protected: | |
48 SkBitmap fBM; | |
49 SkString fFilename; | |
50 int fSize; | |
51 float fHorizontalVelocity, fVerticalVelocity; | |
52 | |
53 SkPoint fCurPos; | |
54 | |
55 // overrides from SkEventSink | |
robertphillips
2014/05/29 21:18:23
SK_OVERRIDE ?
humper
2014/05/29 21:54:51
Done.
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56 virtual bool onQuery(SkEvent* evt) { | |
57 if (SampleCode::TitleQ(*evt)) { | |
58 SampleCode::TitleR(evt, "SubpixelTranslate"); | |
59 return true; | |
60 } | |
61 return this->INHERITED::onQuery(evt); | |
62 } | |
63 | |
robertphillips
2014/05/29 21:18:23
SK_OVERRIDE ?
humper
2014/05/29 21:54:51
Done.
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64 virtual void onDrawContent(SkCanvas* canvas) { | |
65 | |
66 static const SkPaint::FilterLevel gLevels[] = { | |
67 SkPaint::kNone_FilterLevel, | |
68 SkPaint::kLow_FilterLevel, | |
69 SkPaint::kMedium_FilterLevel, | |
70 SkPaint::kHigh_FilterLevel | |
71 }; | |
72 | |
73 for (size_t i = 0; i < SK_ARRAY_COUNT(gLevels); ++i) { | |
74 | |
75 SkPaint paint; | |
76 paint.setFilterLevel(gLevels[i]); | |
77 | |
78 SkRect r = SkRect::MakeXYWH( fCurPos.fX + i * (fSize + 10), fCurPos. fY, fSize, fSize ); | |
79 | |
80 canvas->drawBitmapRect( fBM, r, &paint ); | |
81 } | |
82 | |
83 fCurPos.fX += fHorizontalVelocity; | |
84 fCurPos.fY += fVerticalVelocity; | |
85 this->inval(NULL); | |
86 } | |
87 | |
88 private: | |
robertphillips
2014/05/29 21:18:23
SampleView ?
humper
2014/05/29 21:54:51
Done.
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89 typedef SkView INHERITED; | |
90 }; | |
91 | |
92 ////////////////////////////////////////////////////////////////////////////// | |
93 | |
94 static SkView* MyFactory() { return new SubpixelTranslateView("mandrill_256.png" , .05, .05); } | |
95 static SkViewRegister reg(MyFactory); | |
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