reed@android.com | da6fb32 | 2010-02-19 21:41:30 +0000 | [diff] [blame] | 1 | #include "SampleCode.h" |
| 2 | #include "SkCanvas.h" |
| 3 | #include "SkPaint.h" |
| 4 | #include "SkView.h" |
| 5 | #include "SkLayer.h" |
| 6 | |
reed@android.com | c8c49c5 | 2010-02-24 15:36:57 +0000 | [diff] [blame^] | 7 | #include "SkMatrix44.h" |
| 8 | static void test_inv(const char label[], const SkMatrix44& mat) { |
| 9 | SkDebugf("%s\n", label); |
| 10 | mat.dump(); |
| 11 | |
| 12 | SkMatrix44 inv; |
| 13 | if (mat.invert(&inv)) { |
| 14 | inv.dump(); |
| 15 | } else { |
| 16 | SkDebugf("--- invert failed\n"); |
| 17 | } |
| 18 | |
| 19 | SkMatrix44 a, b; |
| 20 | a.setConcat(mat, inv); |
| 21 | b.setConcat(inv, mat); |
| 22 | SkDebugf("concat mat with inverse pre=%d post=%d\n", a.isIdentity(), b.isIdentity()); |
| 23 | if (!a.isIdentity()) { |
| 24 | a.dump(); |
| 25 | } |
| 26 | if (!b.isIdentity()) { |
| 27 | b.dump(); |
| 28 | } |
| 29 | SkDebugf("\n"); |
| 30 | } |
| 31 | |
| 32 | static void test44() { |
| 33 | SkMatrix44 m0, m1, m2; |
| 34 | |
| 35 | test_inv("identity", m0); |
| 36 | m0.setTranslate(2,3,4); |
| 37 | test_inv("translate", m0); |
| 38 | m0.setScale(2,3,4); |
| 39 | test_inv("scale", m0); |
| 40 | m0.postTranslate(5, 6, 7); |
| 41 | test_inv("postTranslate", m0); |
| 42 | m0.setScale(2,3,4); |
| 43 | m1.setTranslate(5, 6, 7); |
| 44 | m0.setConcat(m0, m1); |
| 45 | test_inv("postTranslate2", m0); |
| 46 | m0.setScale(2,3,4); |
| 47 | m0.preTranslate(5, 6, 7); |
| 48 | test_inv("preTranslate", m0); |
| 49 | |
| 50 | m0.setScale(2, 4, 6); |
| 51 | m0.postScale(SkDoubleToMScalar(0.5)); |
| 52 | test_inv("scale/postscale to 1,2,3", m0); |
| 53 | } |
| 54 | |
reed@android.com | da6fb32 | 2010-02-19 21:41:30 +0000 | [diff] [blame] | 55 | /////////////////////////////////////////////////////////////////////////////// |
| 56 | |
| 57 | class TestLayer : public SkLayer { |
| 58 | public: |
| 59 | TestLayer(SkColor c) : fColor(c) {} |
| 60 | |
| 61 | protected: |
| 62 | virtual void onDraw(SkCanvas* canvas, SkScalar opacity) { |
| 63 | SkRect r; |
| 64 | r.set(0, 0, this->getWidth(), this->getHeight()); |
| 65 | |
| 66 | SkPaint paint; |
| 67 | paint.setColor(fColor); |
| 68 | paint.setAlpha(SkScalarRound(opacity * 255)); |
| 69 | |
| 70 | canvas->drawRect(r, paint); |
| 71 | } |
| 72 | |
| 73 | private: |
| 74 | SkColor fColor; |
| 75 | }; |
| 76 | |
| 77 | class SkLayerView : public SkView { |
| 78 | private: |
| 79 | SkLayer* fRootLayer; |
| 80 | |
| 81 | public: |
| 82 | SkLayerView() { |
reed@android.com | c8c49c5 | 2010-02-24 15:36:57 +0000 | [diff] [blame^] | 83 | test44(); |
reed@android.com | 2bd703b | 2010-02-24 02:01:23 +0000 | [diff] [blame] | 84 | static const int W = 600; |
| 85 | static const int H = 440; |
reed@android.com | da6fb32 | 2010-02-19 21:41:30 +0000 | [diff] [blame] | 86 | static const struct { |
| 87 | int fWidth; |
| 88 | int fHeight; |
| 89 | SkColor fColor; |
| 90 | int fPosX; |
| 91 | int fPosY; |
| 92 | } gData[] = { |
| 93 | { 120, 80, SK_ColorRED, 0, 0 }, |
| 94 | { 120, 80, SK_ColorGREEN, W - 120, 0 }, |
| 95 | { 120, 80, SK_ColorBLUE, 0, H - 80 }, |
| 96 | { 120, 80, SK_ColorMAGENTA, W - 120, H - 80 }, |
| 97 | }; |
| 98 | |
reed@android.com | 2bd703b | 2010-02-24 02:01:23 +0000 | [diff] [blame] | 99 | fRootLayer = new TestLayer(0xFFDDDDDD); |
reed@android.com | da6fb32 | 2010-02-19 21:41:30 +0000 | [diff] [blame] | 100 | fRootLayer->setSize(W, H); |
| 101 | for (size_t i = 0; i < SK_ARRAY_COUNT(gData); i++) { |
| 102 | SkLayer* child = new TestLayer(gData[i].fColor); |
| 103 | child->setSize(gData[i].fWidth, gData[i].fHeight); |
| 104 | child->setPosition(gData[i].fPosX, gData[i].fPosY); |
| 105 | fRootLayer->addChild(child)->unref(); |
| 106 | } |
reed@android.com | 2bd703b | 2010-02-24 02:01:23 +0000 | [diff] [blame] | 107 | |
| 108 | SkLayer* child = new TestLayer(0xFFDD8844); |
| 109 | child->setSize(120, 80); |
| 110 | child->setPosition(fRootLayer->getWidth()/2 - child->getWidth()/2, |
| 111 | fRootLayer->getHeight()/2 - child->getHeight()/2); |
| 112 | child->setAnchorPoint(SK_ScalarHalf, SK_ScalarHalf); |
| 113 | { |
| 114 | SkMatrix m; |
| 115 | m.setRotate(SkIntToScalar(30)); |
| 116 | child->setMatrix(m); |
| 117 | } |
| 118 | fRootLayer->addChild(child)->unref(); |
reed@android.com | da6fb32 | 2010-02-19 21:41:30 +0000 | [diff] [blame] | 119 | } |
| 120 | |
| 121 | virtual ~SkLayerView() { |
| 122 | SkSafeUnref(fRootLayer); |
| 123 | } |
| 124 | |
| 125 | protected: |
| 126 | // overrides from SkEventSink |
| 127 | virtual bool onQuery(SkEvent* evt) { |
| 128 | if (SampleCode::TitleQ(*evt)) { |
| 129 | SampleCode::TitleR(evt, "SkLayer"); |
| 130 | return true; |
| 131 | } |
| 132 | return this->INHERITED::onQuery(evt); |
| 133 | } |
| 134 | |
| 135 | void drawBG(SkCanvas* canvas) { |
reed@android.com | 2bd703b | 2010-02-24 02:01:23 +0000 | [diff] [blame] | 136 | canvas->drawColor(SK_ColorWHITE); |
reed@android.com | da6fb32 | 2010-02-19 21:41:30 +0000 | [diff] [blame] | 137 | |
reed@android.com | 2bd703b | 2010-02-24 02:01:23 +0000 | [diff] [blame] | 138 | canvas->translate(20, 20); |
reed@android.com | da6fb32 | 2010-02-19 21:41:30 +0000 | [diff] [blame] | 139 | fRootLayer->draw(canvas); |
| 140 | } |
| 141 | |
| 142 | virtual void onDraw(SkCanvas* canvas) { |
| 143 | this->drawBG(canvas); |
| 144 | } |
| 145 | |
| 146 | private: |
| 147 | typedef SkView INHERITED; |
| 148 | }; |
| 149 | |
| 150 | /////////////////////////////////////////////////////////////////////////////// |
| 151 | |
| 152 | static SkView* MyFactory() { return new SkLayerView; } |
| 153 | static SkViewRegister reg(MyFactory); |
| 154 | |