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comparison: gfx/skia/trunk/src/views/animated/SkWidgetViews.cpp
gfx/skia/trunk/src/views/animated/SkWidgetViews.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:3a967bce9174 |
|---|---|
| 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 */ | |
| 8 #include "SkWidgetViews.h" | |
| 9 #include "SkAnimator.h" | |
| 10 #include "SkCanvas.h" | |
| 11 #include "SkPaint.h" | |
| 12 #include "SkStream.h" | |
| 13 #include "SkSystemEventTypes.h" | |
| 14 | |
| 15 /* | |
| 16 I have moved this to SkWidgetViews.h | |
| 17 enum SkinEnum { | |
| 18 kButton_SkinEnum, | |
| 19 kProgress_SkinEnum, | |
| 20 kScroll_SkinEnum, | |
| 21 kStaticText_SkinEnum, | |
| 22 | |
| 23 kSkinEnumCount | |
| 24 }; | |
| 25 */ | |
| 26 | |
| 27 const char* get_skin_enum_path(SkinEnum se) | |
| 28 { | |
| 29 SkASSERT((unsigned)se < kSkinEnumCount); | |
| 30 | |
| 31 static const char* gSkinPaths[] = { | |
| 32 "common/default/default/skins/border3.xml", | |
| 33 "common/default/default/skins/button.xml", | |
| 34 "common/default/default/skins/progressBar.xml", | |
| 35 "common/default/default/skins/scrollBar.xml", | |
| 36 "common/default/default/skins/statictextpaint.xml" | |
| 37 }; | |
| 38 | |
| 39 return gSkinPaths[se]; | |
| 40 } | |
| 41 | |
| 42 void init_skin_anim(const char path[], SkAnimator* anim) { | |
| 43 SkASSERT(path && anim); | |
| 44 | |
| 45 SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); | |
| 46 if (!stream.get()) { | |
| 47 SkDEBUGF(("init_skin_anim: loading skin failed <%s>\n", path)); | |
| 48 sk_throw(); | |
| 49 } | |
| 50 | |
| 51 if (!anim->decodeStream(stream)) { | |
| 52 SkDEBUGF(("init_skin_anim: decoding skin failed <%s>\n", path)); | |
| 53 sk_throw(); | |
| 54 } | |
| 55 } | |
| 56 | |
| 57 void init_skin_anim(SkinEnum se, SkAnimator* anim) | |
| 58 { | |
| 59 init_skin_anim(get_skin_enum_path(se), anim); | |
| 60 } | |
| 61 | |
| 62 void init_skin_paint(SkinEnum se, SkPaint* paint) | |
| 63 { | |
| 64 SkASSERT(paint); | |
| 65 | |
| 66 SkAnimator anim; | |
| 67 SkCanvas canvas; | |
| 68 | |
| 69 init_skin_anim(se, &anim); | |
| 70 anim.draw(&canvas, paint, 0); | |
| 71 } | |
| 72 | |
| 73 void inflate_paint(const SkDOM& dom, const SkDOM::Node* node, SkPaint* paint) | |
| 74 { | |
| 75 SkASSERT(paint); | |
| 76 | |
| 77 SkAnimator anim; | |
| 78 SkCanvas canvas; | |
| 79 | |
| 80 if (!anim.decodeDOM(dom, node)) | |
| 81 { | |
| 82 SkDEBUGF(("inflate_paint: decoding dom failed\n")); | |
| 83 SkDEBUGCODE(dom.dump(node);) | |
| 84 sk_throw(); | |
| 85 } | |
| 86 anim.draw(&canvas, paint, 0); | |
| 87 } | |
| 88 | |
| 89 //////////////////////////////////////////////////////////////////////////////////////// | |
| 90 | |
| 91 SkWidgetView::SkWidgetView() : SkView(SkView::kFocusable_Mask | SkView::kEnabled_Mask) | |
| 92 { | |
| 93 } | |
| 94 | |
| 95 const char* SkWidgetView::getLabel() const | |
| 96 { | |
| 97 return fLabel.c_str(); | |
| 98 } | |
| 99 | |
| 100 void SkWidgetView::getLabel(SkString* label) const | |
| 101 { | |
| 102 if (label) | |
| 103 *label = fLabel; | |
| 104 } | |
| 105 | |
| 106 void SkWidgetView::setLabel(const char label[]) | |
| 107 { | |
| 108 this->setLabel(label, label ? strlen(label) : 0); | |
| 109 } | |
| 110 | |
| 111 void SkWidgetView::setLabel(const char label[], size_t len) | |
| 112 { | |
| 113 if ((label == NULL && fLabel.size() != 0) || !fLabel.equals(label, len)) | |
| 114 { | |
| 115 SkString tmp(label, len); | |
| 116 | |
| 117 this->onLabelChange(fLabel.c_str(), tmp.c_str()); | |
| 118 fLabel.swap(tmp); | |
| 119 } | |
| 120 } | |
| 121 | |
| 122 void SkWidgetView::setLabel(const SkString& label) | |
| 123 { | |
| 124 if (fLabel != label) | |
| 125 { | |
| 126 this->onLabelChange(fLabel.c_str(), label.c_str()); | |
| 127 fLabel = label; | |
| 128 } | |
| 129 } | |
| 130 | |
| 131 bool SkWidgetView::postWidgetEvent() | |
| 132 { | |
| 133 if (!fEvent.isType("")) | |
| 134 { | |
| 135 SkEvent evt(fEvent); // make a copy since onPrepareWidgetEvent may edit the event | |
| 136 | |
| 137 if (this->onPrepareWidgetEvent(&evt)) | |
| 138 { | |
| 139 SkDEBUGCODE(evt.dump("SkWidgetView::postWidgetEvent");) | |
| 140 | |
| 141 this->postToListeners(evt); // wonder if this should return true if there are > 0 listeners... | |
| 142 return true; | |
| 143 } | |
| 144 } | |
| 145 return false; | |
| 146 } | |
| 147 | |
| 148 /*virtual*/ void SkWidgetView::onInflate(const SkDOM& dom, const SkDOM::Node* node) | |
| 149 { | |
| 150 this->INHERITED::onInflate(dom, node); | |
| 151 | |
| 152 const char* label = dom.findAttr(node, "label"); | |
| 153 if (label) | |
| 154 this->setLabel(label); | |
| 155 | |
| 156 if ((node = dom.getFirstChild(node, "event")) != NULL) | |
| 157 fEvent.inflate(dom, node); | |
| 158 } | |
| 159 | |
| 160 /*virtual*/ void SkWidgetView::onLabelChange(const char oldLabel[], const char newLabel[]) | |
| 161 { | |
| 162 this->inval(NULL); | |
| 163 } | |
| 164 | |
| 165 static const char gWidgetEventSinkIDSlotName[] = "sk-widget-sinkid-slot"; | |
| 166 | |
| 167 /*virtual*/ bool SkWidgetView::onPrepareWidgetEvent(SkEvent* evt) | |
| 168 { | |
| 169 evt->setS32(gWidgetEventSinkIDSlotName, this->getSinkID()); | |
| 170 return true; | |
| 171 } | |
| 172 | |
| 173 SkEventSinkID SkWidgetView::GetWidgetEventSinkID(const SkEvent& evt) | |
| 174 { | |
| 175 int32_t sinkID; | |
| 176 | |
| 177 return evt.findS32(gWidgetEventSinkIDSlotName, &sinkID) ? (SkEventSinkID)sinkID : 0; | |
| 178 } | |
| 179 | |
| 180 /////////////////////////////////////////////////////////////////////////////////////////////////// | |
| 181 | |
| 182 /*virtual*/ bool SkButtonView::onEvent(const SkEvent& evt) | |
| 183 { | |
| 184 if (evt.isType(SK_EventType_Key) && evt.getFast32() == kOK_SkKey) | |
| 185 { | |
| 186 this->postWidgetEvent(); | |
| 187 return true; | |
| 188 } | |
| 189 return this->INHERITED::onEvent(evt); | |
| 190 } | |
| 191 | |
| 192 /////////////////////////////////////////////////////////////////////////////////////////////////// | |
| 193 | |
| 194 SkCheckButtonView::SkCheckButtonView() : fCheckState(kOff_CheckState) | |
| 195 { | |
| 196 } | |
| 197 | |
| 198 void SkCheckButtonView::setCheckState(CheckState state) | |
| 199 { | |
| 200 SkASSERT((unsigned)state <= kUnknown_CheckState); | |
| 201 | |
| 202 if (fCheckState != state) | |
| 203 { | |
| 204 this->onCheckStateChange(this->getCheckState(), state); | |
| 205 fCheckState = SkToU8(state); | |
| 206 } | |
| 207 } | |
| 208 | |
| 209 /*virtual*/ void SkCheckButtonView::onCheckStateChange(CheckState oldState, CheckState newState) | |
| 210 { | |
| 211 this->inval(NULL); | |
| 212 } | |
| 213 | |
| 214 /*virtual*/ void SkCheckButtonView::onInflate(const SkDOM& dom, const SkDOM::Node* node) | |
| 215 { | |
| 216 this->INHERITED::onInflate(dom, node); | |
| 217 | |
| 218 int index = dom.findList(node, "check-state", "off,on,unknown"); | |
| 219 if (index >= 0) | |
| 220 this->setCheckState((CheckState)index); | |
| 221 } | |
| 222 | |
| 223 static const char gCheckStateSlotName[] = "sk-checkbutton-check-slot"; | |
| 224 | |
| 225 /*virtual*/ bool SkCheckButtonView::onPrepareWidgetEvent(SkEvent* evt) | |
| 226 { | |
| 227 // could check if we're "disabled", and return false... | |
| 228 | |
| 229 evt->setS32(gCheckStateSlotName, this->getCheckState()); | |
| 230 return true; | |
| 231 } | |
| 232 | |
| 233 bool SkCheckButtonView::GetWidgetEventCheckState(const SkEvent& evt, CheckState* state) | |
| 234 { | |
| 235 int32_t state32; | |
| 236 | |
| 237 if (evt.findS32(gCheckStateSlotName, &state32)) | |
| 238 { | |
| 239 if (state) | |
| 240 *state = (CheckState)state32; | |
| 241 return true; | |
| 242 } | |
| 243 return false; | |
| 244 } | |
| 245 | |
| 246 /////////////////////////////////////////////////////////////////////////////////////////////////// | |
| 247 /////////////////////////////////////////////////////////////////////////////////////////////////// | |
| 248 /////////////////////////////////////////////////////////////////////////////////////////////////// | |
| 249 | |
| 250 #include "SkTime.h" | |
| 251 #include <stdio.h> | |
| 252 | |
| 253 class SkAnimButtonView : public SkButtonView { | |
| 254 public: | |
| 255 SkAnimButtonView() | |
| 256 { | |
| 257 fAnim.setHostEventSink(this); | |
| 258 init_skin_anim(kButton_SkinEnum, &fAnim); | |
| 259 } | |
| 260 | |
| 261 protected: | |
| 262 virtual void onLabelChange(const char oldLabel[], const char newLabel[]) | |
| 263 { | |
| 264 this->INHERITED::onLabelChange(oldLabel, newLabel); | |
| 265 | |
| 266 SkEvent evt("user"); | |
| 267 evt.setString("id", "setLabel"); | |
| 268 evt.setString("LABEL", newLabel); | |
| 269 fAnim.doUserEvent(evt); | |
| 270 } | |
| 271 | |
| 272 virtual void onFocusChange(bool gainFocus) | |
| 273 { | |
| 274 this->INHERITED::onFocusChange(gainFocus); | |
| 275 | |
| 276 SkEvent evt("user"); | |
| 277 evt.setString("id", "setFocus"); | |
| 278 evt.setS32("FOCUS", gainFocus); | |
| 279 fAnim.doUserEvent(evt); | |
| 280 } | |
| 281 | |
| 282 virtual void onSizeChange() | |
| 283 { | |
| 284 this->INHERITED::onSizeChange(); | |
| 285 | |
| 286 SkEvent evt("user"); | |
| 287 evt.setString("id", "setDim"); | |
| 288 evt.setScalar("dimX", this->width()); | |
| 289 evt.setScalar("dimY", this->height()); | |
| 290 fAnim.doUserEvent(evt); | |
| 291 } | |
| 292 | |
| 293 virtual void onDraw(SkCanvas* canvas) | |
| 294 { | |
| 295 SkPaint paint; | |
| 296 SkAnimator::DifferenceType diff = fAnim.draw(canvas, &paint, SkTime::GetMSecs()); | |
| 297 | |
| 298 if (diff == SkAnimator::kDifferent) | |
| 299 this->inval(NULL); | |
| 300 else if (diff == SkAnimator::kPartiallyDifferent) | |
| 301 { | |
| 302 SkRect bounds; | |
| 303 fAnim.getInvalBounds(&bounds); | |
| 304 this->inval(&bounds); | |
| 305 } | |
| 306 } | |
| 307 | |
| 308 virtual bool onEvent(const SkEvent& evt) | |
| 309 { | |
| 310 if (evt.isType(SK_EventType_Inval)) | |
| 311 { | |
| 312 this->inval(NULL); | |
| 313 return true; | |
| 314 } | |
| 315 if (evt.isType("recommendDim")) | |
| 316 { | |
| 317 SkScalar height; | |
| 318 | |
| 319 if (evt.findScalar("y", &height)) | |
| 320 this->setHeight(height); | |
| 321 return true; | |
| 322 } | |
| 323 return this->INHERITED::onEvent(evt); | |
| 324 } | |
| 325 | |
| 326 virtual bool onPrepareWidgetEvent(SkEvent* evt) | |
| 327 { | |
| 328 if (this->INHERITED::onPrepareWidgetEvent(evt)) | |
| 329 { | |
| 330 SkEvent e("user"); | |
| 331 e.setString("id", "handlePress"); | |
| 332 (void)fAnim.doUserEvent(e); | |
| 333 return true; | |
| 334 } | |
| 335 return false; | |
| 336 } | |
| 337 | |
| 338 private: | |
| 339 SkAnimator fAnim; | |
| 340 | |
| 341 typedef SkButtonView INHERITED; | |
| 342 }; | |
| 343 | |
| 344 //////////////////////////////////////////////////////////////////////////////////////////// | |
| 345 //////////////////////////////////////////////////////////////////////////////////////////// | |
| 346 | |
| 347 SkView* SkWidgetFactory(const char name[]) | |
| 348 { | |
| 349 if (name == NULL) | |
| 350 return NULL; | |
| 351 | |
| 352 // must be in the same order as the SkSkinWidgetEnum is declared | |
| 353 static const char* gNames[] = { | |
| 354 "sk-border", | |
| 355 "sk-button", | |
| 356 "sk-image", | |
| 357 "sk-list", | |
| 358 "sk-progress", | |
| 359 "sk-scroll", | |
| 360 "sk-text" | |
| 361 | |
| 362 }; | |
| 363 | |
| 364 for (size_t i = 0; i < SK_ARRAY_COUNT(gNames); i++) | |
| 365 if (!strcmp(gNames[i], name)) | |
| 366 return SkWidgetFactory((SkWidgetEnum)i); | |
| 367 | |
| 368 return NULL; | |
| 369 } | |
| 370 | |
| 371 #include "SkImageView.h" | |
| 372 #include "SkProgressBarView.h" | |
| 373 #include "SkScrollBarView.h" | |
| 374 #include "SkBorderView.h" | |
| 375 | |
| 376 SkView* SkWidgetFactory(SkWidgetEnum sw) | |
| 377 { | |
| 378 switch (sw) { | |
| 379 case kBorder_WidgetEnum: | |
| 380 return new SkBorderView; | |
| 381 case kButton_WidgetEnum: | |
| 382 return new SkAnimButtonView; | |
| 383 case kImage_WidgetEnum: | |
| 384 return new SkImageView; | |
| 385 case kList_WidgetEnum: | |
| 386 return new SkListView; | |
| 387 case kProgress_WidgetEnum: | |
| 388 return new SkProgressBarView; | |
| 389 case kScroll_WidgetEnum: | |
| 390 return new SkScrollBarView; | |
| 391 case kText_WidgetEnum: | |
| 392 return new SkStaticTextView; | |
| 393 default: | |
| 394 SkDEBUGFAIL("unknown enum passed to SkWidgetFactory"); | |
| 395 break; | |
| 396 } | |
| 397 return NULL; | |
| 398 } |
