reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [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" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 8 | #include "SkRandom.h" |
| 9 | #include "SkRegion.h" |
| 10 | #include "SkShader.h" |
| 11 | #include "SkUtils.h" |
| 12 | #include "SkXfermode.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 13 | #include "SkColorPriv.h" |
| 14 | #include "SkColorFilter.h" |
| 15 | #include "SkTime.h" |
| 16 | #include "SkTypeface.h" |
| 17 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 18 | #include "SkOSFile.h" |
| 19 | #include "SkStream.h" |
| 20 | #include "SkNinePatch.h" |
| 21 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 22 | static SkShader* make_shader0(SkIPoint* size) { |
| 23 | SkBitmap bm; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 24 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 25 | SkImageDecoder::DecodeFile("/skimages/logo.png", &bm); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 26 | size->set(bm.width(), bm.height()); |
| 27 | return SkShader::CreateBitmapShader(bm, SkShader::kClamp_TileMode, |
| 28 | SkShader::kClamp_TileMode); |
| 29 | } |
| 30 | |
| 31 | static SkShader* make_shader1(const SkIPoint& size) { |
| 32 | SkPoint pts[] = { 0, 0, SkIntToScalar(size.fX), SkIntToScalar(size.fY) }; |
| 33 | SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorRED }; |
| 34 | return SkGradientShader::CreateLinear(pts, colors, NULL, |
| 35 | SK_ARRAY_COUNT(colors), SkShader::kMirror_TileMode, NULL); |
| 36 | } |
| 37 | |
| 38 | class VerticesView : public SkView { |
| 39 | SkShader* fShader0; |
| 40 | SkShader* fShader1; |
| 41 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 42 | public: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 43 | VerticesView() { |
| 44 | SkIPoint size; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 45 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 46 | fShader0 = make_shader0(&size); |
| 47 | fShader1 = make_shader1(size); |
| 48 | |
| 49 | make_strip(&fRecs[0], size.fX, size.fY); |
| 50 | make_fan(&fRecs[1], size.fX, size.fY); |
| 51 | make_tris(&fRecs[2]); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 52 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 53 | fScale = SK_Scalar1; |
| 54 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 55 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 56 | virtual ~VerticesView() { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 57 | SkSafeUnref(fShader0); |
| 58 | SkSafeUnref(fShader1); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 59 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 60 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 61 | protected: |
| 62 | // overrides from SkEventSink |
| 63 | virtual bool onQuery(SkEvent* evt) { |
| 64 | if (SampleCode::TitleQ(*evt)) |
| 65 | { |
| 66 | SkString str("Vertices"); |
| 67 | SampleCode::TitleR(evt, str.c_str()); |
| 68 | return true; |
| 69 | } |
| 70 | return this->INHERITED::onQuery(evt); |
| 71 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 72 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 73 | void drawBG(SkCanvas* canvas) { |
| 74 | canvas->drawColor(SK_ColorGRAY); |
| 75 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 76 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 77 | SkScalar fScale; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 78 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 79 | virtual void onDraw(SkCanvas* canvas) { |
| 80 | this->drawBG(canvas); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 81 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 82 | SkPaint paint; |
| 83 | paint.setDither(true); |
| 84 | paint.setFilterBitmap(true); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 85 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 86 | for (int i = 0; i < SK_ARRAY_COUNT(fRecs); i++) { |
| 87 | canvas->save(); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 88 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 89 | paint.setShader(NULL); |
| 90 | canvas->drawVertices(fRecs[i].fMode, fRecs[i].fCount, |
| 91 | fRecs[i].fVerts, fRecs[i].fTexs, |
| 92 | NULL, NULL, NULL, 0, paint); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 93 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 94 | canvas->translate(SkIntToScalar(250), 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 95 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 96 | paint.setShader(fShader0); |
| 97 | canvas->drawVertices(fRecs[i].fMode, fRecs[i].fCount, |
| 98 | fRecs[i].fVerts, fRecs[i].fTexs, |
| 99 | NULL, NULL, NULL, 0, paint); |
| 100 | |
| 101 | canvas->translate(SkIntToScalar(250), 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 102 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 103 | paint.setShader(fShader1); |
| 104 | canvas->drawVertices(fRecs[i].fMode, fRecs[i].fCount, |
| 105 | fRecs[i].fVerts, fRecs[i].fTexs, |
| 106 | NULL, NULL, NULL, 0, paint); |
| 107 | canvas->restore(); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 108 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 109 | canvas->translate(0, SkIntToScalar(250)); |
| 110 | } |
| 111 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 112 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 113 | virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) { |
| 114 | return new Click(this); |
| 115 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 116 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 117 | virtual bool onClick(Click* click) { |
| 118 | // fCurrX = click->fICurr.fX; |
| 119 | // fCurrY = click->fICurr.fY; |
| 120 | this->inval(NULL); |
| 121 | return true; |
| 122 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 123 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 124 | private: |
| 125 | struct Rec { |
| 126 | SkCanvas::VertexMode fMode; |
| 127 | int fCount; |
| 128 | SkPoint* fVerts; |
| 129 | SkPoint* fTexs; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 130 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 131 | Rec() : fCount(0), fVerts(NULL), fTexs(NULL) {} |
| 132 | ~Rec() { delete[] fVerts; delete[] fTexs; } |
| 133 | }; |
| 134 | |
| 135 | void make_tris(Rec* rec) { |
| 136 | int n = 10; |
| 137 | SkRandom rand; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 138 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 139 | rec->fMode = SkCanvas::kTriangles_VertexMode; |
| 140 | rec->fCount = n * 3; |
| 141 | rec->fVerts = new SkPoint[rec->fCount]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 142 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 143 | for (int i = 0; i < n; i++) { |
| 144 | SkPoint* v = &rec->fVerts[i*3]; |
| 145 | for (int j = 0; j < 3; j++) { |
| 146 | v[j].set(rand.nextUScalar1() * 250, rand.nextUScalar1() * 250); |
| 147 | } |
| 148 | } |
| 149 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 150 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 151 | void make_fan(Rec* rec, int texWidth, int texHeight) { |
| 152 | const SkScalar tx = SkIntToScalar(texWidth); |
| 153 | const SkScalar ty = SkIntToScalar(texHeight); |
| 154 | const int n = 24; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 155 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 156 | rec->fMode = SkCanvas::kTriangleFan_VertexMode; |
| 157 | rec->fCount = n + 2; |
| 158 | rec->fVerts = new SkPoint[rec->fCount]; |
| 159 | rec->fTexs = new SkPoint[rec->fCount]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 160 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 161 | SkPoint* v = rec->fVerts; |
| 162 | SkPoint* t = rec->fTexs; |
| 163 | |
| 164 | v[0].set(0, 0); |
| 165 | t[0].set(0, 0); |
| 166 | for (int i = 0; i < n; i++) { |
| 167 | SkScalar cos; |
| 168 | SkScalar sin = SkScalarSinCos(SK_ScalarPI * 2 * i / n, &cos); |
| 169 | v[i+1].set(cos, sin); |
| 170 | t[i+1].set(i*tx/n, ty); |
| 171 | } |
| 172 | v[n+1] = v[1]; |
| 173 | t[n+1].set(tx, ty); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 174 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 175 | SkMatrix m; |
| 176 | m.setScale(SkIntToScalar(100), SkIntToScalar(100)); |
| 177 | m.postTranslate(SkIntToScalar(110), SkIntToScalar(110)); |
| 178 | m.mapPoints(v, rec->fCount); |
| 179 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 180 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 181 | void make_strip(Rec* rec, int texWidth, int texHeight) { |
| 182 | const SkScalar tx = SkIntToScalar(texWidth); |
| 183 | const SkScalar ty = SkIntToScalar(texHeight); |
| 184 | const int n = 24; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 185 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 186 | rec->fMode = SkCanvas::kTriangleStrip_VertexMode; |
| 187 | rec->fCount = 2 * (n + 1); |
| 188 | rec->fVerts = new SkPoint[rec->fCount]; |
| 189 | rec->fTexs = new SkPoint[rec->fCount]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 190 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 191 | SkPoint* v = rec->fVerts; |
| 192 | SkPoint* t = rec->fTexs; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 193 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 194 | for (int i = 0; i < n; i++) { |
| 195 | SkScalar cos; |
| 196 | SkScalar sin = SkScalarSinCos(SK_ScalarPI * 2 * i / n, &cos); |
| 197 | v[i*2 + 0].set(cos/2, sin/2); |
| 198 | v[i*2 + 1].set(cos, sin); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 199 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 200 | t[i*2 + 0].set(tx * i / n, ty); |
| 201 | t[i*2 + 1].set(tx * i / n, 0); |
| 202 | } |
| 203 | v[2*n + 0] = v[0]; |
| 204 | v[2*n + 1] = v[1]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 205 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 206 | t[2*n + 0].set(tx, ty); |
| 207 | t[2*n + 1].set(tx, 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 208 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 209 | SkMatrix m; |
| 210 | m.setScale(SkIntToScalar(100), SkIntToScalar(100)); |
| 211 | m.postTranslate(SkIntToScalar(110), SkIntToScalar(110)); |
| 212 | m.mapPoints(v, rec->fCount); |
| 213 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 214 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 215 | Rec fRecs[3]; |
| 216 | |
| 217 | typedef SkView INHERITED; |
| 218 | }; |
| 219 | |
| 220 | ////////////////////////////////////////////////////////////////////////////// |
| 221 | |
| 222 | static SkView* MyFactory() { return new VerticesView; } |
| 223 | static SkViewRegister reg(MyFactory); |
| 224 | |