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| 1 /* |
| 2 * Copyright 2014 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 #include "gm.h" |
| 8 #include "SkBitmap.h" |
| 9 #include "SkGradientShader.h" |
| 10 #include "SkShader.h" |
| 11 #include "SkXfermode.h" |
| 12 #include "../src/fonts/SkGScalerContext.h" |
| 13 |
| 14 namespace skiagm { |
| 15 |
| 16 static uint16_t gData[] = { 0xFFFF, 0xCCCF, 0xCCCF, 0xFFFF }; |
| 17 |
| 18 class ColorTypeXfermodeGM : public GM { |
| 19 SkBitmap fBG; |
| 20 |
| 21 virtual void onOnceBeforeDraw() SK_OVERRIDE { |
| 22 fBG.installPixels(SkImageInfo::Make(2, 2, kARGB_4444_SkColorType, |
| 23 kOpaque_SkAlphaType), gData, 4); |
| 24 } |
| 25 |
| 26 public: |
| 27 const static int W = 64; |
| 28 const static int H = 64; |
| 29 ColorTypeXfermodeGM() { |
| 30 const SkColor colors[] = { |
| 31 SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, |
| 32 SK_ColorMAGENTA, SK_ColorCYAN, SK_ColorYELLOW |
| 33 }; |
| 34 SkMatrix local; |
| 35 local.setRotate(180); |
| 36 SkShader* s = SkGradientShader::CreateSweep(0,0, colors, NULL, |
| 37 SK_ARRAY_COUNT(colors), 0, &
local); |
| 38 |
| 39 SkPaint paint; |
| 40 paint.setAntiAlias(true); |
| 41 paint.setShader(s)->unref(); |
| 42 |
| 43 SkTypeface* orig = sk_tool_utils::create_portable_typeface("Times", |
| 44 SkTypeface::kBold); |
| 45 if (NULL == orig) { |
| 46 orig = SkTypeface::RefDefault(); |
| 47 } |
| 48 fColorType = SkNEW_ARGS(SkGTypeface, (orig, paint)); |
| 49 orig->unref(); |
| 50 } |
| 51 |
| 52 virtual ~ColorTypeXfermodeGM() { |
| 53 fColorType->unref(); |
| 54 } |
| 55 |
| 56 protected: |
| 57 virtual SkString onShortName() { |
| 58 return SkString("colortype_xfermodes"); |
| 59 } |
| 60 |
| 61 virtual SkISize onISize() { |
| 62 return SkISize::Make(400, 640); |
| 63 } |
| 64 |
| 65 virtual void onDraw(SkCanvas* canvas) { |
| 66 canvas->translate(SkIntToScalar(10), SkIntToScalar(20)); |
| 67 |
| 68 const struct { |
| 69 SkXfermode::Mode fMode; |
| 70 const char* fLabel; |
| 71 } gModes[] = { |
| 72 { SkXfermode::kClear_Mode, "Clear" }, |
| 73 { SkXfermode::kSrc_Mode, "Src" }, |
| 74 { SkXfermode::kDst_Mode, "Dst" }, |
| 75 { SkXfermode::kSrcOver_Mode, "SrcOver" }, |
| 76 { SkXfermode::kDstOver_Mode, "DstOver" }, |
| 77 { SkXfermode::kSrcIn_Mode, "SrcIn" }, |
| 78 { SkXfermode::kDstIn_Mode, "DstIn" }, |
| 79 { SkXfermode::kSrcOut_Mode, "SrcOut" }, |
| 80 { SkXfermode::kDstOut_Mode, "DstOut" }, |
| 81 { SkXfermode::kSrcATop_Mode, "SrcATop" }, |
| 82 { SkXfermode::kDstATop_Mode, "DstATop" }, |
| 83 |
| 84 { SkXfermode::kXor_Mode, "Xor" }, |
| 85 { SkXfermode::kPlus_Mode, "Plus" }, |
| 86 { SkXfermode::kModulate_Mode, "Modulate" }, |
| 87 { SkXfermode::kScreen_Mode, "Screen" }, |
| 88 { SkXfermode::kOverlay_Mode, "Overlay" }, |
| 89 { SkXfermode::kDarken_Mode, "Darken" }, |
| 90 { SkXfermode::kLighten_Mode, "Lighten" }, |
| 91 { SkXfermode::kColorDodge_Mode, "ColorDodge" }, |
| 92 { SkXfermode::kColorBurn_Mode, "ColorBurn" }, |
| 93 { SkXfermode::kHardLight_Mode, "HardLight" }, |
| 94 { SkXfermode::kSoftLight_Mode, "SoftLight" }, |
| 95 { SkXfermode::kDifference_Mode, "Difference" }, |
| 96 { SkXfermode::kExclusion_Mode, "Exclusion" }, |
| 97 { SkXfermode::kMultiply_Mode, "Multiply" }, |
| 98 { SkXfermode::kHue_Mode, "Hue" }, |
| 99 { SkXfermode::kSaturation_Mode, "Saturation" }, |
| 100 { SkXfermode::kColor_Mode, "Color" }, |
| 101 { SkXfermode::kLuminosity_Mode, "Luminosity" }, |
| 102 }; |
| 103 |
| 104 const SkScalar w = SkIntToScalar(W); |
| 105 const SkScalar h = SkIntToScalar(H); |
| 106 SkMatrix m; |
| 107 m.setScale(SkIntToScalar(6), SkIntToScalar(6)); |
| 108 SkShader* s = SkShader::CreateBitmapShader(fBG, |
| 109 SkShader::kRepeat_TileMode, |
| 110 SkShader::kRepeat_TileMode, |
| 111 &m); |
| 112 |
| 113 SkPaint labelP; |
| 114 labelP.setAntiAlias(true); |
| 115 sk_tool_utils::set_portable_typeface(&labelP); |
| 116 labelP.setTextAlign(SkPaint::kCenter_Align); |
| 117 |
| 118 SkPaint textP; |
| 119 textP.setAntiAlias(true); |
| 120 textP.setTypeface(fColorType); |
| 121 textP.setTextSize(SkIntToScalar(70)); |
| 122 |
| 123 const int W = 5; |
| 124 |
| 125 SkScalar x0 = 0; |
| 126 SkScalar y0 = 0; |
| 127 SkScalar x = x0, y = y0; |
| 128 for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); i++) { |
| 129 SkXfermode* mode = SkXfermode::Create(gModes[i].fMode); |
| 130 SkAutoUnref aur(mode); |
| 131 SkRect r; |
| 132 r.set(x, y, x+w, y+h); |
| 133 |
| 134 SkPaint p; |
| 135 p.setStyle(SkPaint::kFill_Style); |
| 136 p.setShader(s); |
| 137 canvas->drawRect(r, p); |
| 138 |
| 139 r.inset(-SK_ScalarHalf, -SK_ScalarHalf); |
| 140 p.setStyle(SkPaint::kStroke_Style); |
| 141 p.setShader(NULL); |
| 142 canvas->drawRect(r, p); |
| 143 |
| 144 textP.setXfermode(mode); |
| 145 canvas->drawText("H", 1, x+ w/10.f, y + 7.f*h/8.f, textP); |
| 146 #if 1 |
| 147 canvas->drawText(gModes[i].fLabel, strlen(gModes[i].fLabel), |
| 148 x + w/2, y - labelP.getTextSize()/2, labelP); |
| 149 #endif |
| 150 x += w + SkIntToScalar(10); |
| 151 if ((i % W) == W - 1) { |
| 152 x = x0; |
| 153 y += h + SkIntToScalar(30); |
| 154 } |
| 155 } |
| 156 s->unref(); |
| 157 } |
| 158 |
| 159 virtual uint32_t onGetFlags() const { |
| 160 return kSkipPipe_Flag | kSkipPicture_Flag; |
| 161 } |
| 162 |
| 163 private: |
| 164 SkTypeface* fColorType; |
| 165 |
| 166 typedef GM INHERITED; |
| 167 }; |
| 168 |
| 169 ////////////////////////////////////////////////////////////////////////////// |
| 170 |
| 171 static GM* MyFactory(void*) { return new ColorTypeXfermodeGM; } |
| 172 static GMRegistry reg(MyFactory); |
| 173 |
| 174 } |
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