Derek Sollenberger | 0b15698 | 2011-06-06 17:02:24 -0400 | [diff] [blame] | 1 | #include "SampleCode.h" |
| 2 | #include "SkView.h" |
| 3 | #include "SkCanvas.h" |
| 4 | #include "SkGradientShader.h" |
| 5 | #include "SkGraphics.h" |
| 6 | #include "SkImageDecoder.h" |
| 7 | #include "SkPath.h" |
| 8 | #include "SkRegion.h" |
| 9 | #include "SkShader.h" |
| 10 | #include "SkUtils.h" |
| 11 | #include "SkXfermode.h" |
| 12 | #include "SkColorPriv.h" |
| 13 | #include "SkColorFilter.h" |
| 14 | #include "SkTime.h" |
| 15 | |
| 16 | static const char* gNames[] = { |
| 17 | "/skimages/background_01.png" |
| 18 | }; |
| 19 | |
| 20 | class Filter2View : public SampleView { |
| 21 | public: |
| 22 | SkBitmap* fBitmaps; |
| 23 | int fBitmapCount; |
| 24 | int fCurrIndex; |
| 25 | |
| 26 | Filter2View() { |
| 27 | fBitmapCount = SK_ARRAY_COUNT(gNames)*2; |
| 28 | fBitmaps = new SkBitmap[fBitmapCount]; |
| 29 | |
| 30 | for (int i = 0; i < fBitmapCount/2; i++) { |
| 31 | SkImageDecoder::DecodeFile(gNames[i], &fBitmaps[i], |
| 32 | SkBitmap::kARGB_8888_Config, |
| 33 | SkImageDecoder::kDecodePixels_Mode, NULL); |
| 34 | } |
| 35 | for (int i = fBitmapCount/2; i < fBitmapCount; i++) { |
| 36 | SkImageDecoder::DecodeFile(gNames[i-fBitmapCount/2], &fBitmaps[i], |
| 37 | SkBitmap::kRGB_565_Config, |
| 38 | SkImageDecoder::kDecodePixels_Mode, NULL); |
| 39 | } |
| 40 | fCurrIndex = 0; |
| 41 | |
| 42 | this->setBGColor(SK_ColorGRAY); |
| 43 | } |
| 44 | |
| 45 | virtual ~Filter2View() { |
| 46 | delete[] fBitmaps; |
| 47 | } |
| 48 | |
| 49 | protected: |
| 50 | // overrides from SkEventSink |
| 51 | virtual bool onQuery(SkEvent* evt) { |
| 52 | if (SampleCode::TitleQ(*evt)) { |
| 53 | SkString str("Filter/Dither "); |
| 54 | str.append(gNames[fCurrIndex]); |
| 55 | SampleCode::TitleR(evt, str.c_str()); |
| 56 | return true; |
| 57 | } |
| 58 | return this->INHERITED::onQuery(evt); |
| 59 | } |
| 60 | |
| 61 | virtual void onDrawContent(SkCanvas* canvas) { |
| 62 | canvas->translate(SkIntToScalar(10), SkIntToScalar(50)); |
| 63 | |
| 64 | const SkScalar W = SkIntToScalar(fBitmaps[0].width() + 1); |
| 65 | const SkScalar H = SkIntToScalar(fBitmaps[0].height() + 1); |
| 66 | SkPaint paint; |
| 67 | |
| 68 | const SkScalar scale = SkFloatToScalar(0.897917f); |
| 69 | canvas->scale(SK_Scalar1, scale); |
| 70 | |
| 71 | for (int k = 0; k < 2; k++) { |
| 72 | paint.setFilterBitmap(k == 1); |
| 73 | for (int j = 0; j < 2; j++) { |
| 74 | paint.setDither(j == 1); |
| 75 | for (int i = 0; i < fBitmapCount; i++) { |
| 76 | SkScalar x = (k * fBitmapCount + j) * W; |
| 77 | SkScalar y = i * H; |
| 78 | x = SkIntToScalar(SkScalarRound(x)); |
| 79 | y = SkIntToScalar(SkScalarRound(y)); |
| 80 | canvas->drawBitmap(fBitmaps[i], x, y, &paint); |
| 81 | if (i == 0) { |
| 82 | SkPaint p; |
| 83 | p.setAntiAlias(true); |
| 84 | p.setTextAlign(SkPaint::kCenter_Align); |
| 85 | p.setTextSize(SkIntToScalar(18)); |
| 86 | SkString s("dither="); |
| 87 | s.appendS32(paint.isDither()); |
| 88 | s.append(" filter="); |
| 89 | s.appendS32(paint.isFilterBitmap()); |
| 90 | canvas->drawText(s.c_str(), s.size(), x + W/2, |
| 91 | y - p.getTextSize(), p); |
| 92 | } |
| 93 | if (k+j == 2) { |
| 94 | SkPaint p; |
| 95 | p.setAntiAlias(true); |
| 96 | p.setTextSize(SkIntToScalar(18)); |
| 97 | SkString s; |
| 98 | s.append(" depth="); |
| 99 | s.appendS32(fBitmaps[i].config() == SkBitmap::kRGB_565_Config ? 16 : 32); |
| 100 | canvas->drawText(s.c_str(), s.size(), x + W + SkIntToScalar(4), |
| 101 | y + H/2, p); |
| 102 | } |
| 103 | } |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | private: |
| 109 | typedef SampleView INHERITED; |
| 110 | }; |
| 111 | |
| 112 | ////////////////////////////////////////////////////////////////////////////// |
| 113 | |
| 114 | static SkView* MyFactory() { return new Filter2View; } |
| 115 | static SkViewRegister reg(MyFactory); |
| 116 | |