epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 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 | */ |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 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 | static SkBitmap createBitmap(int n) { |
| 16 | SkBitmap bitmap; |
commit-bot@chromium.org | a8c1831 | 2014-02-17 02:55:57 +0000 | [diff] [blame] | 17 | bitmap.allocN32Pixels(n, n); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 18 | bitmap.eraseColor(SK_ColorGREEN); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 19 | |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 20 | SkCanvas canvas(bitmap); |
| 21 | SkRect r; |
| 22 | r.set(0, 0, SkIntToScalar(n), SkIntToScalar(n)); |
| 23 | SkPaint paint; |
| 24 | paint.setAntiAlias(true); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 25 | |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 26 | paint.setColor(SK_ColorRED); |
| 27 | canvas.drawOval(r, paint); |
| 28 | paint.setColor(SK_ColorBLUE); |
| 29 | paint.setStrokeWidth(SkIntToScalar(n)/15); |
| 30 | paint.setStyle(SkPaint::kStroke_Style); |
| 31 | canvas.drawLine(0, 0, r.fRight, r.fBottom, paint); |
| 32 | canvas.drawLine(0, r.fBottom, r.fRight, 0, paint); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 33 | |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 34 | return bitmap; |
| 35 | } |
| 36 | |
reed@google.com | 70b6125 | 2011-05-05 14:12:36 +0000 | [diff] [blame] | 37 | class AARectView : public SampleView { |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 38 | SkBitmap fBitmap; |
| 39 | enum { |
| 40 | N = 64 |
| 41 | }; |
| 42 | public: |
| 43 | AARectView() { |
| 44 | fBitmap = createBitmap(N); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 45 | |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 46 | fWidth = N; |
| 47 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 48 | |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 49 | protected: |
| 50 | // overrides from SkEventSink |
| 51 | virtual bool onQuery(SkEvent* evt) { |
| 52 | if (SampleCode::TitleQ(*evt)) { |
| 53 | SampleCode::TitleR(evt, "AA Rects"); |
| 54 | return true; |
| 55 | } |
| 56 | return this->INHERITED::onQuery(evt); |
| 57 | } |
| 58 | |
reed@google.com | 70b6125 | 2011-05-05 14:12:36 +0000 | [diff] [blame] | 59 | virtual void onDrawContent(SkCanvas* canvas) { |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 60 | canvas->translate(SkIntToScalar(10), SkIntToScalar(10)); |
| 61 | |
| 62 | SkPaint bluePaint; |
| 63 | bluePaint.setARGB(0xff, 0x0, 0x0, 0xff); |
| 64 | SkPaint bmpPaint; |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame^] | 65 | bmpPaint.setShader(SkShader::MakeBitmapShader(fBitmap, SkShader::kRepeat_TileMode, |
| 66 | SkShader::kRepeat_TileMode)); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 67 | bluePaint.setStrokeWidth(3); |
| 68 | bmpPaint.setStrokeWidth(3); |
| 69 | |
| 70 | SkPaint paints[] = { bluePaint, bmpPaint }; |
| 71 | |
| 72 | SkRect rect; |
| 73 | |
| 74 | SkScalar dx = SkIntToScalar(80); |
| 75 | SkScalar dy = SkIntToScalar(100); |
| 76 | SkMatrix matrix; |
senorblanco@chromium.org | 64cc579 | 2011-05-19 19:58:58 +0000 | [diff] [blame] | 77 | for (size_t p = 0; p < SK_ARRAY_COUNT(paints); ++p) { |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 78 | for (int stroke = 0; stroke < 2; ++stroke) { |
| 79 | paints[p].setStyle(stroke ? SkPaint::kStroke_Style : SkPaint::kFill_Style); |
| 80 | for (int a = 0; a < 3; ++ a) { |
| 81 | paints[p].setAntiAlias(a > 0); |
| 82 | paints[p].setAlpha(a > 1 ? 0x80 : 0xff); |
| 83 | |
| 84 | canvas->save(); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 85 | rect = SkRect::MakeLTRB(0.f, |
| 86 | 0.f, |
| 87 | 40.f, |
| 88 | 40.f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 89 | canvas->drawRect(rect, paints[p]); |
| 90 | canvas->translate(dx, 0); |
| 91 | |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 92 | rect = SkRect::MakeLTRB(0.5f, |
| 93 | 0.5f, |
| 94 | 40.5f, |
| 95 | 40.5f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 96 | canvas->drawRect(rect, paints[p]); |
| 97 | canvas->translate(dx, 0); |
| 98 | |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 99 | rect = SkRect::MakeLTRB(0.5f, |
| 100 | 0.5f, |
| 101 | 40.f, |
| 102 | 40.f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 103 | canvas->drawRect(rect, paints[p]); |
| 104 | canvas->translate(dx, 0); |
| 105 | |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 106 | rect = SkRect::MakeLTRB(0.75f, |
| 107 | 0.75f, |
| 108 | 40.75f, |
| 109 | 40.75f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 110 | canvas->drawRect(rect, paints[p]); |
| 111 | canvas->translate(dx, 0); |
| 112 | |
| 113 | canvas->save(); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 114 | canvas->translate(.33f, .67f); |
| 115 | rect = SkRect::MakeLTRB(0.0f, |
| 116 | 0.0f, |
| 117 | 40.0f, |
| 118 | 40.0f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 119 | canvas->drawRect(rect, paints[p]); |
| 120 | canvas->restore(); |
| 121 | canvas->translate(dx, 0); |
| 122 | |
| 123 | canvas->save(); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 124 | matrix.setRotate(45.f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 125 | canvas->concat(matrix); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 126 | canvas->translate(20.0f / sqrtf(2.f), |
| 127 | 20.0f / sqrtf(2.f)); |
| 128 | rect = SkRect::MakeLTRB(-20.0f, |
| 129 | -20.0f, |
| 130 | 20.0f, |
| 131 | 20.0f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 132 | canvas->drawRect(rect, paints[p]); |
| 133 | canvas->restore(); |
| 134 | canvas->translate(dx, 0); |
| 135 | |
| 136 | canvas->save(); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 137 | canvas->rotate(90.f); |
| 138 | rect = SkRect::MakeLTRB(0.0f, |
| 139 | 0.0f, |
| 140 | 40.0f, |
| 141 | -40.0f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 142 | canvas->drawRect(rect, paints[p]); |
| 143 | canvas->restore(); |
| 144 | canvas->translate(dx, 0); |
| 145 | |
| 146 | canvas->save(); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 147 | canvas->rotate(90.f); |
| 148 | rect = SkRect::MakeLTRB(0.5f, |
| 149 | 0.5f, |
| 150 | 40.5f, |
| 151 | -40.5f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 152 | canvas->drawRect(rect, paints[p]); |
| 153 | canvas->restore(); |
| 154 | canvas->translate(dx, 0); |
| 155 | |
| 156 | canvas->save(); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 157 | matrix.setScale(-1.f, -1.f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 158 | canvas->concat(matrix); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 159 | rect = SkRect::MakeLTRB(0.5f, |
| 160 | 0.5f, |
| 161 | -40.5f, |
| 162 | -40.5f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 163 | canvas->drawRect(rect, paints[p]); |
| 164 | canvas->restore(); |
| 165 | canvas->translate(dx, 0); |
| 166 | |
| 167 | canvas->save(); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 168 | matrix.setScale(2.1f, 4.1f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 169 | canvas->concat(matrix); |
commit-bot@chromium.org | 4b413c8 | 2013-11-25 19:44:07 +0000 | [diff] [blame] | 170 | rect = SkRect::MakeLTRB(0.1f, |
| 171 | 0.1f, |
| 172 | 19.1f, |
| 173 | 9.1f); |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 174 | canvas->drawRect(rect, paints[p]); |
| 175 | canvas->restore(); |
| 176 | canvas->translate(dx, 0); |
| 177 | |
| 178 | canvas->restore(); |
| 179 | canvas->translate(0, dy); |
| 180 | } |
| 181 | } |
| 182 | } |
| 183 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 184 | |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 185 | private: |
| 186 | int fWidth; |
| 187 | |
reed@google.com | 70b6125 | 2011-05-05 14:12:36 +0000 | [diff] [blame] | 188 | typedef SampleView INHERITED; |
bsalomon@google.com | 205d460 | 2011-04-25 12:43:45 +0000 | [diff] [blame] | 189 | }; |
| 190 | |
| 191 | ////////////////////////////////////////////////////////////////////////////// |
| 192 | |
| 193 | static SkView* MyFactory() { return new AARectView; } |
| 194 | static SkViewRegister reg(MyFactory); |