annotate base/View.cpp @ 49:39ae3dee27b9

* Set indent-tabs-mode to nil in Emacs mode direction
author Chris Cannam
date Mon, 20 Mar 2006 11:40:39 +0000
parents 5364a9d338a2
children d397ea0a79f5
rev   line source
Chris@49 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@0 2
Chris@0 3 /*
Chris@0 4 A waveform viewer and audio annotation editor.
Chris@1 5 Chris Cannam, Queen Mary University of London, 2005-2006
Chris@0 6
Chris@0 7 This is experimental software. Not for distribution.
Chris@0 8 */
Chris@0 9
Chris@0 10 #include "base/View.h"
Chris@0 11 #include "base/Layer.h"
Chris@0 12 #include "base/Model.h"
Chris@0 13 #include "base/ZoomConstraint.h"
Chris@0 14 #include "base/Profiler.h"
Chris@0 15
Chris@0 16 #include "layer/TimeRulerLayer.h" //!!! damn, shouldn't be including that here
Chris@25 17 #include "model/PowerOfSqrtTwoZoomConstraint.h" //!!! likewise
Chris@0 18
Chris@0 19 #include <QPainter>
Chris@0 20 #include <QPaintEvent>
Chris@0 21 #include <QRect>
Chris@0 22 #include <QApplication>
Chris@0 23
Chris@0 24 #include <iostream>
Chris@16 25 #include <cassert>
Martin@37 26 #include <math.h>
Chris@0 27
Chris@18 28 //#define DEBUG_VIEW_WIDGET_PAINT 1
Chris@0 29
Chris@0 30 using std::cerr;
Chris@0 31 using std::endl;
Chris@0 32
Chris@0 33 View::View(QWidget *w, bool showProgress) :
Chris@0 34 QFrame(w),
Chris@0 35 m_centreFrame(0),
Chris@0 36 m_zoomLevel(1024),
Chris@0 37 m_followPan(true),
Chris@0 38 m_followZoom(true),
Chris@0 39 m_followPlay(PlaybackScrollPage),
Chris@0 40 m_lightBackground(true),
Chris@0 41 m_showProgress(showProgress),
Chris@0 42 m_cache(0),
Chris@0 43 m_cacheCentreFrame(0),
Chris@0 44 m_cacheZoomLevel(1024),
Chris@9 45 m_selectionCached(false),
Chris@0 46 m_deleting(false),
Chris@8 47 m_haveSelectedLayer(false),
Chris@29 48 m_manager(0),
Chris@29 49 m_propertyContainer(new ViewPropertyContainer(this))
Chris@0 50 {
Chris@0 51 // QWidget::setAttribute(Qt::WA_PaintOnScreen);
Chris@0 52 }
Chris@0 53
Chris@0 54 View::~View()
Chris@0 55 {
Chris@43 56 std::cerr << "View::~View(" << this << ")" << std::endl;
Chris@43 57
Chris@0 58 m_deleting = true;
Chris@29 59 delete m_propertyContainer;
Chris@0 60 }
Chris@0 61
Chris@0 62 PropertyContainer::PropertyList
Chris@0 63 View::getProperties() const
Chris@0 64 {
Chris@29 65 PropertyContainer::PropertyList list;
Chris@0 66 list.push_back(tr("Global Scroll"));
Chris@0 67 list.push_back(tr("Global Zoom"));
Chris@0 68 list.push_back(tr("Follow Playback"));
Chris@0 69 return list;
Chris@0 70 }
Chris@0 71
Chris@0 72 PropertyContainer::PropertyType
Chris@29 73 View::getPropertyType(const PropertyContainer::PropertyName &name) const
Chris@0 74 {
Chris@29 75 if (name == tr("Global Scroll")) return PropertyContainer::ToggleProperty;
Chris@29 76 if (name == tr("Global Zoom")) return PropertyContainer::ToggleProperty;
Chris@29 77 if (name == tr("Follow Playback")) return PropertyContainer::ValueProperty;
Chris@29 78 return PropertyContainer::InvalidProperty;
Chris@0 79 }
Chris@0 80
Chris@0 81 int
Chris@29 82 View::getPropertyRangeAndValue(const PropertyContainer::PropertyName &name,
Chris@29 83 int *min, int *max) const
Chris@0 84 {
Chris@0 85 if (name == tr("Global Scroll")) return m_followPan;
Chris@0 86 if (name == tr("Global Zoom")) return m_followZoom;
Chris@29 87 if (name == tr("Follow Playback")) {
Chris@29 88 if (min) *min = 0;
Chris@29 89 if (max) *max = 2;
Chris@29 90 return int(m_followPlay);
Chris@29 91 }
Chris@29 92 if (min) *min = 0;
Chris@29 93 if (max) *max = 0;
Chris@29 94 return 0;
Chris@0 95 }
Chris@0 96
Chris@0 97 QString
Chris@29 98 View::getPropertyValueLabel(const PropertyContainer::PropertyName &name,
Chris@29 99 int value) const
Chris@0 100 {
Chris@0 101 if (name == tr("Follow Playback")) {
Chris@0 102 switch (value) {
Chris@0 103 default:
Chris@0 104 case 0: return tr("Scroll");
Chris@0 105 case 1: return tr("Page");
Chris@0 106 case 2: return tr("Off");
Chris@0 107 }
Chris@0 108 }
Chris@0 109 return tr("<unknown>");
Chris@0 110 }
Chris@0 111
Chris@0 112 void
Chris@29 113 View::setProperty(const PropertyContainer::PropertyName &name, int value)
Chris@0 114 {
Chris@0 115 if (name == tr("Global Scroll")) {
Chris@0 116 setFollowGlobalPan(value != 0);
Chris@0 117 } else if (name == tr("Global Zoom")) {
Chris@0 118 setFollowGlobalZoom(value != 0);
Chris@0 119 } else if (name == tr("Follow Playback")) {
Chris@0 120 switch (value) {
Chris@0 121 default:
Chris@0 122 case 0: setPlaybackFollow(PlaybackScrollContinuous); break;
Chris@0 123 case 1: setPlaybackFollow(PlaybackScrollPage); break;
Chris@0 124 case 2: setPlaybackFollow(PlaybackIgnore); break;
Chris@0 125 }
Chris@0 126 }
Chris@0 127 }
Chris@0 128
Chris@0 129 size_t
Chris@0 130 View::getPropertyContainerCount() const
Chris@0 131 {
Chris@0 132 return m_layers.size() + 1; // the 1 is for me
Chris@0 133 }
Chris@0 134
Chris@0 135 const PropertyContainer *
Chris@0 136 View::getPropertyContainer(size_t i) const
Chris@0 137 {
Chris@0 138 return (const PropertyContainer *)(((View *)this)->
Chris@0 139 getPropertyContainer(i));
Chris@0 140 }
Chris@0 141
Chris@0 142 PropertyContainer *
Chris@0 143 View::getPropertyContainer(size_t i)
Chris@0 144 {
Chris@29 145 if (i == 0) return m_propertyContainer;
Chris@0 146 return m_layers[i-1];
Chris@0 147 }
Chris@0 148
Chris@0 149 void
Chris@44 150 View::propertyContainerSelected(View *client, PropertyContainer *pc)
Chris@0 151 {
Chris@44 152 if (client != this) return;
Chris@44 153
Chris@29 154 if (pc == m_propertyContainer) {
Chris@8 155 if (m_haveSelectedLayer) {
Chris@8 156 m_haveSelectedLayer = false;
Chris@8 157 update();
Chris@8 158 }
Chris@8 159 return;
Chris@8 160 }
Chris@0 161
Chris@0 162 delete m_cache;
Chris@0 163 m_cache = 0;
Chris@0 164
Chris@0 165 Layer *selectedLayer = 0;
Chris@0 166
Chris@0 167 for (LayerList::iterator i = m_layers.begin(); i != m_layers.end(); ++i) {
Chris@0 168 if (*i == pc) {
Chris@0 169 selectedLayer = *i;
Chris@0 170 m_layers.erase(i);
Chris@0 171 break;
Chris@0 172 }
Chris@0 173 }
Chris@0 174
Chris@0 175 if (selectedLayer) {
Chris@8 176 m_haveSelectedLayer = true;
Chris@0 177 m_layers.push_back(selectedLayer);
Chris@0 178 update();
Chris@8 179 } else {
Chris@8 180 m_haveSelectedLayer = false;
Chris@0 181 }
Chris@0 182 }
Chris@0 183
Chris@8 184 void
Chris@8 185 View::toolModeChanged()
Chris@8 186 {
Chris@8 187 std::cerr << "View::toolModeChanged(" << m_manager->getToolMode() << ")" << std::endl;
Chris@8 188 }
Chris@8 189
Chris@0 190 long
Chris@0 191 View::getStartFrame() const
Chris@0 192 {
Chris@0 193 size_t w2 = (width() / 2) * m_zoomLevel;
Chris@0 194 size_t frame = m_centreFrame;
Chris@0 195 if (frame >= w2) {
Chris@0 196 frame -= w2;
Chris@0 197 return (frame / m_zoomLevel * m_zoomLevel);
Chris@0 198 } else {
Chris@0 199 frame = w2 - frame;
Chris@0 200 frame = frame / m_zoomLevel * m_zoomLevel;
Chris@0 201 return -(long)frame - m_zoomLevel;
Chris@0 202 }
Chris@0 203 }
Chris@0 204
Chris@0 205 size_t
Chris@0 206 View::getEndFrame() const
Chris@0 207 {
Chris@16 208 return getFrameForX(width()) - 1;
Chris@0 209 }
Chris@0 210
Chris@0 211 void
Chris@0 212 View::setStartFrame(long f)
Chris@0 213 {
Chris@0 214 setCentreFrame(f + m_zoomLevel * (width() / 2));
Chris@0 215 }
Chris@0 216
Chris@10 217 bool
Chris@0 218 View::setCentreFrame(size_t f, bool e)
Chris@0 219 {
Chris@10 220 bool changeVisible = false;
Chris@10 221
Chris@0 222 if (m_centreFrame != f) {
Chris@0 223
Chris@0 224 int formerPixel = m_centreFrame / m_zoomLevel;
Chris@0 225
Chris@0 226 m_centreFrame = f;
Chris@0 227
Chris@0 228 int newPixel = m_centreFrame / m_zoomLevel;
Chris@0 229
Chris@0 230 if (newPixel != formerPixel) {
Chris@0 231
Chris@0 232 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 233 std::cout << "View(" << this << ")::setCentreFrame: newPixel " << newPixel << ", formerPixel " << formerPixel << std::endl;
Chris@0 234 #endif
Chris@0 235 update();
Chris@10 236
Chris@10 237 changeVisible = true;
Chris@0 238 }
Chris@0 239
Chris@0 240 if (e) emit centreFrameChanged(this, f, m_followPan);
Chris@0 241 }
Chris@10 242
Chris@10 243 return changeVisible;
Chris@0 244 }
Chris@0 245
Chris@15 246 int
Chris@15 247 View::getXForFrame(long frame) const
Chris@15 248 {
Chris@15 249 return (frame - getStartFrame()) / m_zoomLevel;
Chris@15 250 }
Chris@15 251
Chris@15 252 long
Chris@15 253 View::getFrameForX(int x) const
Chris@15 254 {
Chris@15 255 return (long(x) * long(m_zoomLevel)) + getStartFrame();
Chris@15 256 }
Chris@15 257
Chris@33 258 float
Chris@33 259 View::getYForFrequency(float frequency,
Chris@33 260 float minf,
Chris@33 261 float maxf,
Chris@33 262 bool logarithmic) const
Chris@33 263 {
Chris@33 264 int h = height();
Chris@33 265
Chris@33 266 if (logarithmic) {
Chris@33 267
Chris@33 268 static float lastminf = 0.0, lastmaxf = 0.0;
Chris@33 269 static float logminf = 0.0, logmaxf = 0.0;
Chris@33 270
Chris@33 271 if (lastminf != minf) {
Chris@33 272 lastminf = (minf == 0.0 ? 1.0 : minf);
Chris@33 273 logminf = log10f(minf);
Chris@33 274 }
Chris@33 275 if (lastmaxf != maxf) {
Chris@33 276 lastmaxf = (maxf < lastminf ? lastminf : maxf);
Chris@33 277 logmaxf = log10f(maxf);
Chris@33 278 }
Chris@33 279
Chris@33 280 if (logminf == logmaxf) return 0;
Chris@33 281 return h - (h * (log10f(frequency) - logminf)) / (logmaxf - logminf);
Chris@33 282
Chris@33 283 } else {
Chris@33 284
Chris@33 285 if (minf == maxf) return 0;
Chris@33 286 return h - (h * (frequency - minf)) / (maxf - minf);
Chris@33 287 }
Chris@33 288 }
Chris@33 289
Chris@33 290 float
Chris@33 291 View::getFrequencyForY(int y,
Chris@33 292 float minf,
Chris@33 293 float maxf,
Chris@33 294 bool logarithmic) const
Chris@33 295 {
Chris@33 296 int h = height();
Chris@33 297
Chris@33 298 if (logarithmic) {
Chris@33 299
Chris@33 300 static float lastminf = 0.0, lastmaxf = 0.0;
Chris@33 301 static float logminf = 0.0, logmaxf = 0.0;
Chris@33 302
Chris@33 303 if (lastminf != minf) {
Chris@33 304 lastminf = (minf == 0.0 ? 1.0 : minf);
Chris@33 305 logminf = log10f(minf);
Chris@33 306 }
Chris@33 307 if (lastmaxf != maxf) {
Chris@33 308 lastmaxf = (maxf < lastminf ? lastminf : maxf);
Chris@33 309 logmaxf = log10f(maxf);
Chris@33 310 }
Chris@33 311
Chris@33 312 if (logminf == logmaxf) return 0;
Chris@33 313 return pow(10.f, logminf + ((logmaxf - logminf) * (h - y)) / h);
Chris@33 314
Chris@33 315 } else {
Chris@33 316
Chris@33 317 if (minf == maxf) return 0;
Chris@33 318 return minf + ((h - y) * (maxf - minf)) / h;
Chris@33 319 }
Chris@33 320 }
Chris@33 321
Chris@22 322 int
Chris@22 323 View::getZoomLevel() const
Chris@22 324 {
Chris@22 325 return m_zoomLevel;
Chris@22 326 }
Chris@22 327
Chris@0 328 void
Chris@0 329 View::setZoomLevel(size_t z)
Chris@0 330 {
Chris@0 331 if (m_zoomLevel != int(z)) {
Chris@0 332 m_zoomLevel = z;
Chris@0 333 emit zoomLevelChanged(this, z, m_followZoom);
Chris@0 334 update();
Chris@0 335 }
Chris@0 336 }
Chris@0 337
Chris@16 338 View::LayerProgressBar::LayerProgressBar(QWidget *parent) :
Chris@16 339 QProgressBar(parent)
Chris@16 340 {
Chris@16 341 QFont f(font());
Chris@16 342 f.setPointSize(f.pointSize() * 8 / 10);
Chris@16 343 setFont(f);
Chris@16 344 }
Chris@16 345
Chris@0 346 void
Chris@0 347 View::addLayer(Layer *layer)
Chris@0 348 {
Chris@0 349 delete m_cache;
Chris@0 350 m_cache = 0;
Chris@0 351
Chris@0 352 m_layers.push_back(layer);
Chris@0 353
Chris@0 354 m_progressBars[layer] = new LayerProgressBar(this);
Chris@0 355 m_progressBars[layer]->setMinimum(0);
Chris@0 356 m_progressBars[layer]->setMaximum(100);
Chris@0 357 m_progressBars[layer]->setMinimumWidth(80);
Chris@0 358 m_progressBars[layer]->hide();
Chris@16 359
Chris@0 360 connect(layer, SIGNAL(layerParametersChanged()),
Chris@0 361 this, SLOT(layerParametersChanged()));
Chris@0 362 connect(layer, SIGNAL(layerNameChanged()),
Chris@0 363 this, SLOT(layerNameChanged()));
Chris@0 364 connect(layer, SIGNAL(modelChanged()),
Chris@0 365 this, SLOT(modelChanged()));
Chris@0 366 connect(layer, SIGNAL(modelCompletionChanged()),
Chris@0 367 this, SLOT(modelCompletionChanged()));
Chris@0 368 connect(layer, SIGNAL(modelChanged(size_t, size_t)),
Chris@0 369 this, SLOT(modelChanged(size_t, size_t)));
Chris@0 370 connect(layer, SIGNAL(modelReplaced()),
Chris@0 371 this, SLOT(modelReplaced()));
Chris@0 372
Chris@0 373 update();
Chris@0 374
Chris@0 375 emit propertyContainerAdded(layer);
Chris@0 376 }
Chris@0 377
Chris@0 378 void
Chris@0 379 View::removeLayer(Layer *layer)
Chris@0 380 {
Chris@0 381 if (m_deleting) {
Chris@0 382 return;
Chris@0 383 }
Chris@0 384
Chris@0 385 delete m_cache;
Chris@0 386 m_cache = 0;
Chris@0 387
Chris@0 388 for (LayerList::iterator i = m_layers.begin(); i != m_layers.end(); ++i) {
Chris@0 389 if (*i == layer) {
Chris@0 390 m_layers.erase(i);
Chris@0 391 if (m_progressBars.find(layer) != m_progressBars.end()) {
Chris@0 392 delete m_progressBars[layer];
Chris@0 393 m_progressBars.erase(layer);
Chris@0 394 }
Chris@0 395 break;
Chris@0 396 }
Chris@0 397 }
Chris@0 398
Chris@0 399 update();
Chris@0 400
Chris@0 401 emit propertyContainerRemoved(layer);
Chris@0 402 }
Chris@0 403
Chris@8 404 Layer *
Chris@8 405 View::getSelectedLayer()
Chris@8 406 {
Chris@8 407 if (m_haveSelectedLayer && !m_layers.empty()) {
Chris@8 408 return getLayer(getLayerCount() - 1);
Chris@8 409 } else {
Chris@8 410 return 0;
Chris@8 411 }
Chris@8 412 }
Chris@8 413
Chris@36 414 const Layer *
Chris@36 415 View::getSelectedLayer() const
Chris@36 416 {
Chris@36 417 return const_cast<const Layer *>(const_cast<View *>(this)->getSelectedLayer());
Chris@36 418 }
Chris@36 419
Chris@0 420 void
Chris@0 421 View::setViewManager(ViewManager *manager)
Chris@0 422 {
Chris@0 423 if (m_manager) {
Chris@0 424 m_manager->disconnect(this, SLOT(viewManagerCentreFrameChanged(void *, unsigned long, bool)));
Chris@0 425 m_manager->disconnect(this, SLOT(viewManagerZoomLevelChanged(void *, unsigned long, bool)));
Chris@0 426 disconnect(m_manager, SIGNAL(centreFrameChanged(void *, unsigned long, bool)));
Chris@0 427 disconnect(m_manager, SIGNAL(zoomLevelChanged(void *, unsigned long, bool)));
Chris@8 428 disconnect(m_manager, SIGNAL(toolModeChanged()));
Chris@8 429 disconnect(m_manager, SIGNAL(selectionChanged()));
Chris@9 430 disconnect(m_manager, SIGNAL(inProgressSelectionChanged()));
Chris@0 431 }
Chris@0 432
Chris@0 433 m_manager = manager;
Chris@0 434 if (m_followPan) setCentreFrame(m_manager->getGlobalCentreFrame(), false);
Chris@0 435 if (m_followZoom) setZoomLevel(m_manager->getGlobalZoom());
Chris@0 436
Chris@0 437 connect(m_manager, SIGNAL(centreFrameChanged(void *, unsigned long, bool)),
Chris@0 438 this, SLOT(viewManagerCentreFrameChanged(void *, unsigned long, bool)));
Chris@0 439 connect(m_manager, SIGNAL(playbackFrameChanged(unsigned long)),
Chris@0 440 this, SLOT(viewManagerPlaybackFrameChanged(unsigned long)));
Chris@0 441 connect(m_manager, SIGNAL(zoomLevelChanged(void *, unsigned long, bool)),
Chris@0 442 this, SLOT(viewManagerZoomLevelChanged(void *, unsigned long, bool)));
Chris@8 443 connect(m_manager, SIGNAL(toolModeChanged()),
Chris@8 444 this, SLOT(toolModeChanged()));
Chris@8 445 connect(m_manager, SIGNAL(selectionChanged()),
Chris@9 446 this, SLOT(selectionChanged()));
Chris@9 447 connect(m_manager, SIGNAL(inProgressSelectionChanged()),
Chris@9 448 this, SLOT(selectionChanged()));
Chris@0 449
Chris@0 450 connect(this, SIGNAL(centreFrameChanged(void *, unsigned long, bool)),
Chris@0 451 m_manager, SIGNAL(centreFrameChanged(void *, unsigned long, bool)));
Chris@0 452 connect(this, SIGNAL(zoomLevelChanged(void *, unsigned long, bool)),
Chris@0 453 m_manager, SIGNAL(zoomLevelChanged(void *, unsigned long, bool)));
Chris@8 454
Chris@8 455 toolModeChanged();
Chris@0 456 }
Chris@0 457
Chris@0 458 void
Chris@0 459 View::setFollowGlobalPan(bool f)
Chris@0 460 {
Chris@0 461 m_followPan = f;
Chris@29 462 emit propertyContainerPropertyChanged(m_propertyContainer);
Chris@0 463 }
Chris@0 464
Chris@0 465 void
Chris@0 466 View::setFollowGlobalZoom(bool f)
Chris@0 467 {
Chris@0 468 m_followZoom = f;
Chris@29 469 emit propertyContainerPropertyChanged(m_propertyContainer);
Chris@0 470 }
Chris@0 471
Chris@0 472 void
Chris@46 473 View::drawVisibleText(QPainter &paint, int x, int y, QString text, TextStyle style)
Chris@45 474 {
Chris@46 475 if (style == OutlinedText) {
Chris@46 476
Chris@46 477 QColor origPenColour = paint.pen().color();
Chris@46 478 QColor penColour = origPenColour;
Chris@46 479 QColor surroundColour = Qt::white; //palette().background().color();
Chris@46 480
Chris@46 481 if (!hasLightBackground()) {
Chris@46 482 int h, s, v;
Chris@46 483 penColour.getHsv(&h, &s, &v);
Chris@46 484 penColour = QColor::fromHsv(h, s, 255 - v);
Chris@46 485 surroundColour = Qt::black;
Chris@46 486 }
Chris@46 487
Chris@46 488 paint.setPen(surroundColour);
Chris@46 489
Chris@46 490 for (int dx = -1; dx <= 1; ++dx) {
Chris@46 491 for (int dy = -1; dy <= 1; ++dy) {
Chris@46 492 if (!(dx || dy)) continue;
Chris@46 493 paint.drawText(x + dx, y + dy, text);
Chris@46 494 }
Chris@46 495 }
Chris@46 496
Chris@46 497 paint.setPen(penColour);
Chris@46 498
Chris@46 499 paint.drawText(x, y, text);
Chris@46 500
Chris@46 501 paint.setPen(origPenColour);
Chris@46 502
Chris@46 503 } else {
Chris@46 504
Chris@46 505 std::cerr << "ERROR: View::drawVisibleText: Boxed style not yet implemented!" << std::endl;
Chris@46 506 }
Chris@45 507 }
Chris@45 508
Chris@45 509 void
Chris@0 510 View::setPlaybackFollow(PlaybackFollowMode m)
Chris@0 511 {
Chris@0 512 m_followPlay = m;
Chris@29 513 emit propertyContainerPropertyChanged(m_propertyContainer);
Chris@0 514 }
Chris@0 515
Chris@0 516 void
Chris@0 517 View::modelChanged()
Chris@0 518 {
Chris@0 519 QObject *obj = sender();
Chris@0 520
Chris@0 521 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@1 522 std::cerr << "View(" << this << ")::modelChanged()" << std::endl;
Chris@0 523 #endif
Chris@31 524
Chris@31 525 // If the model that has changed is not used by any of the cached
Chris@31 526 // layers, we won't need to recreate the cache
Chris@31 527
Chris@31 528 bool recreate = false;
Chris@31 529
Chris@31 530 bool discard;
Chris@31 531 LayerList scrollables = getScrollableBackLayers(false, discard);
Chris@31 532 for (LayerList::const_iterator i = scrollables.begin();
Chris@31 533 i != scrollables.end(); ++i) {
Chris@31 534 if (*i == obj || (*i)->getModel() == obj) {
Chris@31 535 recreate = true;
Chris@31 536 break;
Chris@31 537 }
Chris@31 538 }
Chris@31 539
Chris@31 540 if (recreate) {
Chris@31 541 delete m_cache;
Chris@31 542 m_cache = 0;
Chris@31 543 }
Chris@0 544
Chris@0 545 checkProgress(obj);
Chris@0 546
Chris@0 547 update();
Chris@0 548 }
Chris@0 549
Chris@0 550 void
Chris@0 551 View::modelChanged(size_t startFrame, size_t endFrame)
Chris@0 552 {
Chris@0 553 QObject *obj = sender();
Chris@0 554
Chris@0 555 long myStartFrame = getStartFrame();
Chris@0 556 size_t myEndFrame = getEndFrame();
Chris@0 557
Chris@1 558 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@1 559 std::cerr << "View(" << this << ")::modelChanged(" << startFrame << "," << endFrame << ") [me " << myStartFrame << "," << myEndFrame << "]" << std::endl;
Chris@1 560 #endif
Chris@1 561
Chris@0 562 if (myStartFrame > 0 && endFrame < size_t(myStartFrame)) {
Chris@0 563 checkProgress(obj);
Chris@0 564 return;
Chris@0 565 }
Chris@0 566 if (startFrame > myEndFrame) {
Chris@0 567 checkProgress(obj);
Chris@0 568 return;
Chris@0 569 }
Chris@0 570
Chris@31 571 // If the model that has changed is not used by any of the cached
Chris@31 572 // layers, we won't need to recreate the cache
Chris@31 573
Chris@31 574 bool recreate = false;
Chris@31 575
Chris@31 576 bool discard;
Chris@31 577 LayerList scrollables = getScrollableBackLayers(false, discard);
Chris@31 578 for (LayerList::const_iterator i = scrollables.begin();
Chris@31 579 i != scrollables.end(); ++i) {
Chris@31 580 if (*i == obj || (*i)->getModel() == obj) {
Chris@31 581 recreate = true;
Chris@31 582 break;
Chris@31 583 }
Chris@31 584 }
Chris@31 585
Chris@31 586 if (recreate) {
Chris@31 587 delete m_cache;
Chris@31 588 m_cache = 0;
Chris@31 589 }
Chris@0 590
Chris@0 591 if (long(startFrame) < myStartFrame) startFrame = myStartFrame;
Chris@0 592 if (endFrame > myEndFrame) endFrame = myEndFrame;
Chris@0 593
Chris@15 594 int x0 = getXForFrame(startFrame);
Chris@15 595 int x1 = getXForFrame(endFrame + 1);
Chris@15 596 if (x1 < x0) x1 = x0;
Chris@0 597
Chris@0 598 checkProgress(obj);
Chris@0 599
Chris@31 600 update();
Chris@31 601 //!! update(x0, 0, x1 - x0 + 1, height());
Chris@0 602 }
Chris@0 603
Chris@0 604 void
Chris@0 605 View::modelCompletionChanged()
Chris@0 606 {
Chris@0 607 QObject *obj = sender();
Chris@0 608 checkProgress(obj);
Chris@0 609 }
Chris@0 610
Chris@0 611 void
Chris@0 612 View::modelReplaced()
Chris@0 613 {
Chris@0 614 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@1 615 std::cerr << "View(" << this << ")::modelReplaced()" << std::endl;
Chris@0 616 #endif
Chris@1 617 delete m_cache;
Chris@1 618 m_cache = 0;
Chris@1 619
Chris@0 620 update();
Chris@0 621 }
Chris@0 622
Chris@0 623 void
Chris@0 624 View::layerParametersChanged()
Chris@0 625 {
Chris@0 626 Layer *layer = dynamic_cast<Layer *>(sender());
Chris@0 627
Chris@0 628 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 629 std::cerr << "View::layerParametersChanged()" << std::endl;
Chris@0 630 #endif
Chris@0 631
Chris@0 632 delete m_cache;
Chris@0 633 m_cache = 0;
Chris@0 634 update();
Chris@0 635
Chris@0 636 if (layer) {
Chris@0 637 emit propertyContainerPropertyChanged(layer);
Chris@0 638 }
Chris@0 639 }
Chris@0 640
Chris@0 641 void
Chris@0 642 View::layerNameChanged()
Chris@0 643 {
Chris@0 644 Layer *layer = dynamic_cast<Layer *>(sender());
Chris@0 645 if (layer) emit propertyContainerNameChanged(layer);
Chris@0 646 }
Chris@0 647
Chris@0 648 void
Chris@0 649 View::viewManagerCentreFrameChanged(void *p, unsigned long f, bool locked)
Chris@0 650 {
Chris@0 651 if (m_followPan && p != this && locked) {
Chris@0 652 if (m_manager && (sender() == m_manager)) {
Chris@0 653 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 654 std::cerr << this << ": manager frame changed " << f << " from " << p << std::endl;
Chris@0 655 #endif
Chris@0 656 setCentreFrame(f);
Chris@0 657 if (p == this) repaint();
Chris@0 658 }
Chris@0 659 }
Chris@0 660 }
Chris@0 661
Chris@0 662 void
Chris@0 663 View::viewManagerPlaybackFrameChanged(unsigned long f)
Chris@0 664 {
Chris@0 665 if (m_manager) {
Chris@0 666 if (sender() != m_manager) return;
Chris@0 667 }
Chris@0 668
Chris@0 669 if (m_playPointerFrame == f) return;
Chris@15 670 bool visible = (getXForFrame(m_playPointerFrame) != getXForFrame(f));
Chris@0 671 size_t oldPlayPointerFrame = m_playPointerFrame;
Chris@0 672 m_playPointerFrame = f;
Chris@0 673 if (!visible) return;
Chris@0 674
Chris@21 675 bool modifierPressed = // we only care about these ones
Chris@21 676 ((QApplication::keyboardModifiers() & Qt::ShiftModifier) ||
Chris@21 677 (QApplication::keyboardModifiers() & Qt::ControlModifier));
Chris@20 678
Chris@0 679 switch (m_followPlay) {
Chris@0 680
Chris@0 681 case PlaybackScrollContinuous:
Chris@10 682 if (QApplication::mouseButtons() == Qt::NoButton &&
Chris@21 683 !modifierPressed) {
Chris@0 684 setCentreFrame(f, false);
Chris@0 685 }
Chris@0 686 break;
Chris@0 687
Chris@0 688 case PlaybackScrollPage:
Chris@0 689 {
Chris@15 690 int xold = getXForFrame(oldPlayPointerFrame);
Chris@10 691 repaint(xold - 1, 0, 3, height());
Chris@10 692
Chris@15 693 long w = getEndFrame() - getStartFrame();
Chris@0 694 w -= w/5;
Chris@0 695 long sf = (f / w) * w - w/8;
Chris@10 696
Chris@10 697 if (m_manager &&
Chris@10 698 m_manager->isPlaying() &&
Chris@10 699 m_manager->getPlaySelectionMode()) {
Chris@24 700 MultiSelection::SelectionList selections = m_manager->getSelections();
Chris@10 701 if (!selections.empty()) {
Chris@10 702 size_t selectionStart = selections.begin()->getStartFrame();
Chris@10 703 if (sf < long(selectionStart) - w / 10) {
Chris@10 704 sf = long(selectionStart) - w / 10;
Chris@10 705 }
Chris@10 706 }
Chris@10 707 }
Chris@10 708
Chris@0 709 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 710 std::cerr << "PlaybackScrollPage: f = " << f << ", sf = " << sf << ", start frame "
Chris@0 711 << getStartFrame() << std::endl;
Chris@0 712 #endif
Chris@10 713
Chris@15 714 // We don't consider scrolling unless the pointer is outside
Chris@15 715 // the clearly visible range already
Chris@15 716
Chris@15 717 int xnew = getXForFrame(m_playPointerFrame);
Chris@15 718
Chris@18 719 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@18 720 std::cerr << "xnew = " << xnew << ", width = " << width() << std::endl;
Chris@18 721 #endif
Chris@18 722
Chris@15 723 if (xnew < width()/8 || xnew > (width()*7)/8) {
Chris@15 724 if (QApplication::mouseButtons() == Qt::NoButton &&
Chris@21 725 !modifierPressed) {
Chris@15 726 long offset = getFrameForX(width()/2) - getStartFrame();
Chris@15 727 long newCentre = sf + offset;
Chris@15 728 bool changed = setCentreFrame(newCentre, false);
Chris@15 729 if (changed) {
Chris@15 730 xold = getXForFrame(oldPlayPointerFrame);
Chris@15 731 update(xold - 1, 0, 3, height());
Chris@15 732 }
Chris@10 733 }
Chris@10 734 }
Chris@10 735
Chris@0 736 update(xnew - 1, 0, 3, height());
Chris@10 737
Chris@0 738 break;
Chris@0 739 }
Chris@0 740
Chris@0 741 case PlaybackIgnore:
Chris@0 742 if (long(f) >= getStartFrame() && f < getEndFrame()) {
Chris@0 743 update();
Chris@0 744 }
Chris@0 745 break;
Chris@0 746 }
Chris@0 747 }
Chris@0 748
Chris@0 749 void
Chris@0 750 View::viewManagerZoomLevelChanged(void *p, unsigned long z, bool locked)
Chris@0 751 {
Chris@0 752 if (m_followZoom && p != this && locked) {
Chris@0 753 if (m_manager && (sender() == m_manager)) {
Chris@0 754 setZoomLevel(z);
Chris@0 755 if (p == this) repaint();
Chris@0 756 }
Chris@0 757 }
Chris@0 758 }
Chris@0 759
Chris@9 760 void
Chris@9 761 View::selectionChanged()
Chris@9 762 {
Chris@9 763 if (m_selectionCached) {
Chris@9 764 delete m_cache;
Chris@9 765 m_cache = 0;
Chris@9 766 m_selectionCached = false;
Chris@9 767 }
Chris@9 768 update();
Chris@9 769 }
Chris@9 770
Chris@0 771 size_t
Chris@0 772 View::getModelsStartFrame() const
Chris@0 773 {
Chris@0 774 bool first = true;
Chris@0 775 size_t startFrame = 0;
Chris@0 776
Chris@0 777 for (LayerList::const_iterator i = m_layers.begin(); i != m_layers.end(); ++i) {
Chris@0 778
Chris@0 779 if ((*i)->getModel() && (*i)->getModel()->isOK()) {
Chris@0 780
Chris@0 781 size_t thisStartFrame = (*i)->getModel()->getStartFrame();
Chris@0 782
Chris@0 783 if (first || thisStartFrame < startFrame) {
Chris@0 784 startFrame = thisStartFrame;
Chris@0 785 }
Chris@0 786 first = false;
Chris@0 787 }
Chris@0 788 }
Chris@0 789 return startFrame;
Chris@0 790 }
Chris@0 791
Chris@0 792 size_t
Chris@0 793 View::getModelsEndFrame() const
Chris@0 794 {
Chris@0 795 bool first = true;
Chris@0 796 size_t endFrame = 0;
Chris@0 797
Chris@0 798 for (LayerList::const_iterator i = m_layers.begin(); i != m_layers.end(); ++i) {
Chris@0 799
Chris@0 800 if ((*i)->getModel() && (*i)->getModel()->isOK()) {
Chris@0 801
Chris@0 802 size_t thisEndFrame = (*i)->getModel()->getEndFrame();
Chris@0 803
Chris@0 804 if (first || thisEndFrame > endFrame) {
Chris@0 805 endFrame = thisEndFrame;
Chris@0 806 }
Chris@0 807 first = false;
Chris@0 808 }
Chris@0 809 }
Chris@0 810
Chris@0 811 if (first) return getModelsStartFrame();
Chris@0 812 return endFrame;
Chris@0 813 }
Chris@0 814
Chris@0 815 int
Chris@0 816 View::getModelsSampleRate() const
Chris@0 817 {
Chris@0 818 //!!! Just go for the first, for now. If we were supporting
Chris@0 819 // multiple samplerates, we'd probably want to do frame/time
Chris@0 820 // conversion in the model
Chris@0 821
Chris@0 822 for (LayerList::const_iterator i = m_layers.begin(); i != m_layers.end(); ++i) {
Chris@0 823 if ((*i)->getModel() && (*i)->getModel()->isOK()) {
Chris@0 824 return (*i)->getModel()->getSampleRate();
Chris@0 825 }
Chris@0 826 }
Chris@0 827 return 0;
Chris@0 828 }
Chris@0 829
Chris@0 830 bool
Chris@0 831 View::areLayersScrollable() const
Chris@0 832 {
Chris@0 833 // True iff all views are scrollable
Chris@0 834 for (LayerList::const_iterator i = m_layers.begin(); i != m_layers.end(); ++i) {
Chris@36 835 if (!(*i)->isLayerScrollable(this)) return false;
Chris@0 836 }
Chris@0 837 return true;
Chris@0 838 }
Chris@0 839
Chris@0 840 View::LayerList
Chris@31 841 View::getScrollableBackLayers(bool testChanged, bool &changed) const
Chris@0 842 {
Chris@0 843 changed = false;
Chris@0 844
Chris@46 845 // We want a list of all the scrollable layers that are behind the
Chris@46 846 // backmost non-scrollable layer.
Chris@46 847
Chris@0 848 LayerList scrollables;
Chris@0 849 for (LayerList::const_iterator i = m_layers.begin(); i != m_layers.end(); ++i) {
Chris@36 850 if ((*i)->isLayerDormant(this)) continue;
Chris@46 851 if ((*i)->isLayerOpaque()) {
Chris@46 852 // You can't see anything behind an opaque layer!
Chris@46 853 scrollables.clear();
Chris@46 854 }
Chris@36 855 if ((*i)->isLayerScrollable(this)) scrollables.push_back(*i);
Chris@46 856 else break;
Chris@0 857 }
Chris@0 858
Chris@31 859 if (testChanged && scrollables != m_lastScrollableBackLayers) {
Chris@0 860 m_lastScrollableBackLayers = scrollables;
Chris@0 861 changed = true;
Chris@0 862 }
Chris@0 863 return scrollables;
Chris@0 864 }
Chris@0 865
Chris@0 866 View::LayerList
Chris@31 867 View::getNonScrollableFrontLayers(bool testChanged, bool &changed) const
Chris@0 868 {
Chris@0 869 changed = false;
Chris@31 870 LayerList scrollables = getScrollableBackLayers(testChanged, changed);
Chris@0 871 LayerList nonScrollables;
Chris@0 872
Chris@0 873 // Everything in front of the first non-scrollable from the back
Chris@0 874 // should also be considered non-scrollable
Chris@0 875
Chris@46 876 bool started = false;
Chris@46 877
Chris@0 878 for (LayerList::const_iterator i = m_layers.begin(); i != m_layers.end(); ++i) {
Chris@36 879 if ((*i)->isLayerDormant(this)) continue;
Chris@46 880 if (!started && (*i)->isLayerScrollable(this)) {
Chris@0 881 continue;
Chris@0 882 }
Chris@46 883 started = true;
Chris@46 884 if ((*i)->isLayerOpaque()) {
Chris@46 885 // You can't see anything behind an opaque layer!
Chris@46 886 nonScrollables.clear();
Chris@46 887 }
Chris@0 888 nonScrollables.push_back(*i);
Chris@0 889 }
Chris@0 890
Chris@31 891 if (testChanged && nonScrollables != m_lastNonScrollableBackLayers) {
Chris@0 892 m_lastNonScrollableBackLayers = nonScrollables;
Chris@0 893 changed = true;
Chris@0 894 }
Chris@0 895
Chris@0 896 return nonScrollables;
Chris@0 897 }
Chris@0 898
Chris@0 899 size_t
Chris@0 900 View::getZoomConstraintBlockSize(size_t blockSize,
Chris@0 901 ZoomConstraint::RoundingDirection dir)
Chris@0 902 const
Chris@0 903 {
Chris@0 904 size_t candidate = blockSize;
Chris@0 905 bool haveCandidate = false;
Chris@0 906
Chris@25 907 PowerOfSqrtTwoZoomConstraint defaultZoomConstraint;
Chris@25 908
Chris@0 909 for (LayerList::const_iterator i = m_layers.begin(); i != m_layers.end(); ++i) {
Chris@0 910
Chris@25 911 const ZoomConstraint *zoomConstraint = (*i)->getZoomConstraint();
Chris@25 912 if (!zoomConstraint) zoomConstraint = &defaultZoomConstraint;
Chris@0 913
Chris@25 914 size_t thisBlockSize =
Chris@25 915 zoomConstraint->getNearestBlockSize(blockSize, dir);
Chris@0 916
Chris@25 917 // Go for the block size that's furthest from the one
Chris@25 918 // passed in. Most of the time, that's what we want.
Chris@25 919 if (!haveCandidate ||
Chris@25 920 (thisBlockSize > blockSize && thisBlockSize > candidate) ||
Chris@25 921 (thisBlockSize < blockSize && thisBlockSize < candidate)) {
Chris@25 922 candidate = thisBlockSize;
Chris@25 923 haveCandidate = true;
Chris@0 924 }
Chris@0 925 }
Chris@0 926
Chris@0 927 return candidate;
Chris@0 928 }
Chris@0 929
Chris@0 930 void
Chris@0 931 View::zoom(bool in)
Chris@0 932 {
Chris@0 933 int newZoomLevel = m_zoomLevel;
Chris@0 934
Chris@0 935 if (in) {
Chris@0 936 newZoomLevel = getZoomConstraintBlockSize(newZoomLevel - 1,
Chris@0 937 ZoomConstraint::RoundDown);
Chris@0 938 } else {
Chris@0 939 newZoomLevel = getZoomConstraintBlockSize(newZoomLevel + 1,
Chris@0 940 ZoomConstraint::RoundUp);
Chris@0 941 }
Chris@0 942
Chris@0 943 if (newZoomLevel != m_zoomLevel) {
Chris@0 944 setZoomLevel(newZoomLevel);
Chris@0 945 }
Chris@0 946 }
Chris@0 947
Chris@0 948 void
Chris@12 949 View::scroll(bool right, bool lots)
Chris@12 950 {
Chris@12 951 long delta;
Chris@12 952 if (lots) {
Chris@15 953 delta = (getEndFrame() - getStartFrame()) / 2;
Chris@12 954 } else {
Chris@15 955 delta = (getEndFrame() - getStartFrame()) / 20;
Chris@12 956 }
Chris@12 957 if (right) delta = -delta;
Chris@12 958
Chris@12 959 if (int(m_centreFrame) < delta) {
Chris@12 960 setCentreFrame(0);
Chris@12 961 } else if (int(m_centreFrame) - delta >= int(getModelsEndFrame())) {
Chris@12 962 setCentreFrame(getModelsEndFrame());
Chris@12 963 } else {
Chris@12 964 setCentreFrame(m_centreFrame - delta);
Chris@12 965 }
Chris@12 966 }
Chris@12 967
Chris@12 968 void
Chris@0 969 View::checkProgress(void *object)
Chris@0 970 {
Chris@0 971 if (!m_showProgress) return;
Chris@0 972
Chris@0 973 int ph = height();
Chris@0 974
Chris@0 975 for (ProgressMap::const_iterator i = m_progressBars.begin();
Chris@0 976 i != m_progressBars.end(); ++i) {
Chris@0 977
Chris@0 978 if (i->first == object) {
Chris@0 979
Chris@0 980 int completion = i->first->getCompletion();
Chris@0 981
Chris@0 982 if (completion >= 100) {
Chris@0 983
Chris@0 984 i->second->hide();
Chris@0 985
Chris@0 986 } else {
Chris@0 987
Chris@0 988 i->second->setText(i->first->getPropertyContainerName());
Chris@0 989 i->second->setValue(completion);
Chris@0 990 i->second->move(0, ph - i->second->height());
Chris@0 991
Chris@0 992 i->second->show();
Chris@0 993 i->second->update();
Chris@0 994
Chris@0 995 ph -= i->second->height();
Chris@0 996 }
Chris@0 997 } else {
Chris@0 998 if (i->second->isVisible()) {
Chris@0 999 ph -= i->second->height();
Chris@0 1000 }
Chris@0 1001 }
Chris@0 1002 }
Chris@0 1003 }
Chris@0 1004
Chris@0 1005 void
Chris@0 1006 View::paintEvent(QPaintEvent *e)
Chris@0 1007 {
Chris@0 1008 // Profiler prof("View::paintEvent", true);
Chris@0 1009 // std::cerr << "View::paintEvent" << std::endl;
Chris@0 1010
Chris@0 1011 if (m_layers.empty()) {
Chris@0 1012 QFrame::paintEvent(e);
Chris@0 1013 return;
Chris@0 1014 }
Chris@0 1015
Chris@0 1016 // ensure our constraints are met
Chris@0 1017 m_zoomLevel = getZoomConstraintBlockSize(m_zoomLevel,
Chris@0 1018 ZoomConstraint::RoundUp);
Chris@0 1019
Chris@0 1020 QPainter paint;
Chris@0 1021 bool repaintCache = false;
Chris@0 1022 bool paintedCacheRect = false;
Chris@0 1023
Chris@0 1024 QRect cacheRect(rect());
Chris@0 1025
Chris@0 1026 if (e) {
Chris@0 1027 cacheRect &= e->rect();
Chris@0 1028 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 1029 std::cerr << "paint rect " << cacheRect.width() << "x" << cacheRect.height()
Chris@0 1030 << ", my rect " << width() << "x" << height() << std::endl;
Chris@0 1031 #endif
Chris@0 1032 }
Chris@0 1033
Chris@0 1034 QRect nonCacheRect(cacheRect);
Chris@0 1035
Chris@0 1036 // If not all layers are scrollable, but some of the back layers
Chris@46 1037 // are, we should store only those in the cache.
Chris@0 1038
Chris@0 1039 bool layersChanged = false;
Chris@31 1040 LayerList scrollables = getScrollableBackLayers(true, layersChanged);
Chris@31 1041 LayerList nonScrollables = getNonScrollableFrontLayers(true, layersChanged);
Chris@9 1042 bool selectionCacheable = nonScrollables.empty();
Chris@9 1043 bool haveSelections = m_manager && !m_manager->getSelections().empty();
Chris@9 1044 bool selectionDrawn = false;
Chris@0 1045
Chris@46 1046 // If all the non-scrollable layers are non-opaque, then we draw
Chris@46 1047 // the selection rectangle behind them and cache it. If any are
Chris@46 1048 // opaque, however, we can't cache.
Chris@46 1049 //
Chris@10 1050 if (!selectionCacheable) {
Chris@10 1051 selectionCacheable = true;
Chris@10 1052 for (LayerList::const_iterator i = nonScrollables.begin();
Chris@10 1053 i != nonScrollables.end(); ++i) {
Chris@10 1054 if ((*i)->isLayerOpaque()) {
Chris@10 1055 selectionCacheable = false;
Chris@10 1056 break;
Chris@10 1057 }
Chris@10 1058 }
Chris@10 1059 }
Chris@10 1060
Chris@34 1061 if (selectionCacheable) {
Chris@34 1062 QPoint localPos;
Chris@34 1063 bool closeToLeft, closeToRight;
Chris@34 1064 if (shouldIlluminateLocalSelection(localPos, closeToLeft, closeToRight)) {
Chris@34 1065 selectionCacheable = false;
Chris@34 1066 }
Chris@34 1067 }
Chris@34 1068
Chris@0 1069 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 1070 std::cerr << "View(" << this << ")::paintEvent: have " << scrollables.size()
Chris@0 1071 << " scrollable back layers and " << nonScrollables.size()
Chris@0 1072 << " non-scrollable front layers" << std::endl;
Chris@9 1073 std::cerr << "haveSelections " << haveSelections << ", selectionCacheable "
Chris@9 1074 << selectionCacheable << ", m_selectionCached " << m_selectionCached << std::endl;
Chris@0 1075 #endif
Chris@0 1076
Chris@9 1077 if (layersChanged || scrollables.empty() ||
Chris@9 1078 (haveSelections && (selectionCacheable != m_selectionCached))) {
Chris@0 1079 delete m_cache;
Chris@0 1080 m_cache = 0;
Chris@9 1081 m_selectionCached = false;
Chris@0 1082 }
Chris@0 1083
Chris@0 1084 if (!scrollables.empty()) {
Chris@0 1085 if (!m_cache ||
Chris@0 1086 m_cacheZoomLevel != m_zoomLevel ||
Chris@0 1087 width() != m_cache->width() ||
Chris@0 1088 height() != m_cache->height()) {
Chris@0 1089
Chris@0 1090 // cache is not valid
Chris@0 1091
Chris@0 1092 if (cacheRect.width() < width()/10) {
Chris@0 1093 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 1094 std::cerr << "View(" << this << ")::paintEvent: small repaint, not bothering to recreate cache" << std::endl;
Chris@0 1095 #endif
Chris@0 1096 } else {
Chris@0 1097 delete m_cache;
Chris@0 1098 m_cache = new QPixmap(width(), height());
Chris@0 1099 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 1100 std::cerr << "View(" << this << ")::paintEvent: recreated cache" << std::endl;
Chris@0 1101 #endif
Chris@0 1102 cacheRect = rect();
Chris@0 1103 repaintCache = true;
Chris@0 1104 }
Chris@0 1105
Chris@0 1106 } else if (m_cacheCentreFrame != m_centreFrame) {
Chris@0 1107
Chris@15 1108 long dx =
Chris@15 1109 getXForFrame(m_cacheCentreFrame) -
Chris@15 1110 getXForFrame(m_centreFrame);
Chris@0 1111
Chris@0 1112 if (dx > -width() && dx < width()) {
Chris@0 1113 #if defined(Q_WS_WIN32) || defined(Q_WS_MAC)
Chris@0 1114 // Copying a pixmap to itself doesn't work properly on Windows
Chris@0 1115 // or Mac (it only works when moving in one direction)
Chris@0 1116 static QPixmap *tmpPixmap = 0;
Chris@0 1117 if (!tmpPixmap ||
Chris@0 1118 tmpPixmap->width() != width() ||
Chris@0 1119 tmpPixmap->height() != height()) {
Chris@0 1120 delete tmpPixmap;
Chris@0 1121 tmpPixmap = new QPixmap(width(), height());
Chris@0 1122 }
Chris@0 1123 paint.begin(tmpPixmap);
Chris@0 1124 paint.drawPixmap(0, 0, *m_cache);
Chris@0 1125 paint.end();
Chris@0 1126 paint.begin(m_cache);
Chris@0 1127 paint.drawPixmap(dx, 0, *tmpPixmap);
Chris@0 1128 paint.end();
Chris@0 1129 #else
Chris@0 1130 // But it seems to be fine on X11
Chris@0 1131 paint.begin(m_cache);
Chris@0 1132 paint.drawPixmap(dx, 0, *m_cache);
Chris@0 1133 paint.end();
Chris@0 1134 #endif
Chris@0 1135
Chris@0 1136 if (dx < 0) {
Chris@0 1137 cacheRect = QRect(width() + dx, 0, -dx, height());
Chris@0 1138 } else {
Chris@0 1139 cacheRect = QRect(0, 0, dx, height());
Chris@0 1140 }
Chris@0 1141 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 1142 std::cerr << "View(" << this << ")::paintEvent: scrolled cache by " << dx << std::endl;
Chris@0 1143 #endif
Chris@0 1144 } else {
Chris@0 1145 cacheRect = rect();
Chris@0 1146 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 1147 std::cerr << "View(" << this << ")::paintEvent: scrolling too far" << std::endl;
Chris@0 1148 #endif
Chris@0 1149 }
Chris@0 1150 repaintCache = true;
Chris@0 1151
Chris@0 1152 } else {
Chris@0 1153 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 1154 std::cerr << "View(" << this << ")::paintEvent: cache is good" << std::endl;
Chris@0 1155 #endif
Chris@0 1156 paint.begin(this);
Chris@0 1157 paint.drawPixmap(cacheRect, *m_cache, cacheRect);
Chris@0 1158 paint.end();
Chris@0 1159 QFrame::paintEvent(e);
Chris@0 1160 paintedCacheRect = true;
Chris@0 1161 }
Chris@0 1162
Chris@0 1163 m_cacheCentreFrame = m_centreFrame;
Chris@0 1164 m_cacheZoomLevel = m_zoomLevel;
Chris@0 1165 }
Chris@0 1166
Chris@0 1167 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@0 1168 // std::cerr << "View(" << this << ")::paintEvent: cacheRect " << cacheRect << ", nonCacheRect " << (nonCacheRect | cacheRect) << ", repaintCache " << repaintCache << ", paintedCacheRect " << paintedCacheRect << std::endl;
Chris@0 1169 #endif
Chris@0 1170
Chris@0 1171 // Scrollable (cacheable) items first
Chris@0 1172
Chris@0 1173 if (!paintedCacheRect) {
Chris@0 1174
Chris@0 1175 if (repaintCache) paint.begin(m_cache);
Chris@0 1176 else paint.begin(this);
Chris@0 1177
Chris@0 1178 paint.setClipRect(cacheRect);
Chris@0 1179
Chris@0 1180 if (hasLightBackground()) {
Chris@0 1181 paint.setPen(Qt::white);
Chris@0 1182 paint.setBrush(Qt::white);
Chris@0 1183 } else {
Chris@0 1184 paint.setPen(Qt::black);
Chris@0 1185 paint.setBrush(Qt::black);
Chris@0 1186 }
Chris@0 1187 paint.drawRect(cacheRect);
Chris@0 1188
Chris@0 1189 paint.setPen(Qt::black);
Chris@0 1190 paint.setBrush(Qt::NoBrush);
Chris@0 1191
Chris@0 1192 for (LayerList::iterator i = scrollables.begin(); i != scrollables.end(); ++i) {
Chris@8 1193 paint.setRenderHint(QPainter::Antialiasing, false);
Chris@8 1194 paint.save();
Chris@36 1195 (*i)->paint(this, paint, cacheRect);
Chris@8 1196 paint.restore();
Chris@0 1197 }
Chris@9 1198
Chris@9 1199 if (haveSelections && selectionCacheable) {
Chris@9 1200 drawSelections(paint);
Chris@9 1201 m_selectionCached = repaintCache;
Chris@9 1202 selectionDrawn = true;
Chris@9 1203 }
Chris@0 1204
Chris@0 1205 paint.end();
Chris@0 1206
Chris@0 1207 if (repaintCache) {
Chris@0 1208 cacheRect |= (e ? e->rect() : rect());
Chris@0 1209 paint.begin(this);
Chris@0 1210 paint.drawPixmap(cacheRect, *m_cache, cacheRect);
Chris@0 1211 paint.end();
Chris@0 1212 }
Chris@0 1213 }
Chris@0 1214
Chris@0 1215 // Now non-cacheable items. We always need to redraw the
Chris@0 1216 // non-cacheable items across at least the area we drew of the
Chris@0 1217 // cacheable items.
Chris@0 1218
Chris@0 1219 nonCacheRect |= cacheRect;
Chris@0 1220
Chris@0 1221 paint.begin(this);
Chris@0 1222 paint.setClipRect(nonCacheRect);
Chris@0 1223
Chris@0 1224 if (scrollables.empty()) {
Chris@0 1225 if (hasLightBackground()) {
Chris@0 1226 paint.setPen(Qt::white);
Chris@0 1227 paint.setBrush(Qt::white);
Chris@0 1228 } else {
Chris@0 1229 paint.setPen(Qt::black);
Chris@0 1230 paint.setBrush(Qt::black);
Chris@0 1231 }
Chris@0 1232 paint.drawRect(nonCacheRect);
Chris@0 1233 }
Chris@0 1234
Chris@0 1235 paint.setPen(Qt::black);
Chris@0 1236 paint.setBrush(Qt::NoBrush);
Chris@0 1237
Chris@0 1238 for (LayerList::iterator i = nonScrollables.begin(); i != nonScrollables.end(); ++i) {
Chris@36 1239 (*i)->paint(this, paint, nonCacheRect);
Chris@0 1240 }
Chris@0 1241
Chris@9 1242 paint.end();
Chris@8 1243
Chris@9 1244 paint.begin(this);
Chris@9 1245 if (e) paint.setClipRect(e->rect());
Chris@9 1246 if (!m_selectionCached) {
Chris@9 1247 drawSelections(paint);
Chris@8 1248 }
Chris@0 1249 paint.end();
Chris@0 1250
Chris@0 1251 if (m_followPlay != PlaybackScrollContinuous) {
Chris@0 1252
Chris@0 1253 paint.begin(this);
Chris@0 1254
Chris@0 1255 if (long(m_playPointerFrame) > getStartFrame() &&
Chris@0 1256 m_playPointerFrame < getEndFrame()) {
Chris@0 1257
Chris@15 1258 int playx = getXForFrame(m_playPointerFrame);
Chris@0 1259
Chris@0 1260 paint.setPen(Qt::black);
Chris@0 1261 paint.drawLine(playx - 1, 0, playx - 1, height() - 1);
Chris@0 1262 paint.drawLine(playx + 1, 0, playx + 1, height() - 1);
Chris@0 1263 paint.drawPoint(playx, 0);
Chris@0 1264 paint.drawPoint(playx, height() - 1);
Chris@0 1265 paint.setPen(Qt::white);
Chris@0 1266 paint.drawLine(playx, 1, playx, height() - 2);
Chris@0 1267 }
Chris@0 1268
Chris@0 1269 paint.end();
Chris@0 1270 }
Chris@0 1271
Chris@0 1272 QFrame::paintEvent(e);
Chris@0 1273 }
Chris@0 1274
Chris@9 1275 void
Chris@9 1276 View::drawSelections(QPainter &paint)
Chris@9 1277 {
Chris@24 1278 MultiSelection::SelectionList selections;
Chris@9 1279
Chris@9 1280 if (m_manager) {
Chris@9 1281 selections = m_manager->getSelections();
Chris@9 1282 if (m_manager->haveInProgressSelection()) {
Chris@9 1283 bool exclusive;
Chris@9 1284 Selection inProgressSelection =
Chris@9 1285 m_manager->getInProgressSelection(exclusive);
Chris@9 1286 if (exclusive) selections.clear();
Chris@9 1287 selections.insert(inProgressSelection);
Chris@9 1288 }
Chris@9 1289 }
Chris@9 1290
Chris@9 1291 paint.save();
Chris@9 1292 paint.setBrush(QColor(150, 150, 255, 80));
Chris@9 1293
Chris@10 1294 int sampleRate = getModelsSampleRate();
Chris@10 1295
Chris@34 1296 QPoint localPos;
Chris@34 1297 long illuminateFrame = -1;
Chris@34 1298 bool closeToLeft, closeToRight;
Chris@34 1299
Chris@34 1300 if (shouldIlluminateLocalSelection(localPos, closeToLeft, closeToRight)) {
Chris@34 1301 illuminateFrame = getFrameForX(localPos.x());
Chris@34 1302 }
Chris@34 1303
Chris@10 1304 const QFontMetrics &metrics = paint.fontMetrics();
Chris@10 1305
Chris@24 1306 for (MultiSelection::SelectionList::iterator i = selections.begin();
Chris@9 1307 i != selections.end(); ++i) {
Chris@9 1308
Chris@15 1309 int p0 = getXForFrame(i->getStartFrame());
Chris@15 1310 int p1 = getXForFrame(i->getEndFrame());
Chris@9 1311
Chris@10 1312 if (p1 < 0 || p0 > width()) continue;
Chris@9 1313
Chris@9 1314 #ifdef DEBUG_VIEW_WIDGET_PAINT
Chris@9 1315 std::cerr << "View::drawSelections: " << p0 << ",-1 [" << (p1-p0) << "x" << (height()+1) << "]" << std::endl;
Chris@9 1316 #endif
Chris@9 1317
Chris@34 1318 bool illuminateThis =
Chris@34 1319 (illuminateFrame >= 0 && i->contains(illuminateFrame));
Chris@34 1320
Chris@34 1321 paint.setPen(QColor(150, 150, 255));
Chris@9 1322 paint.drawRect(p0, -1, p1 - p0, height() + 1);
Chris@10 1323
Chris@34 1324 if (illuminateThis) {
Chris@34 1325 paint.save();
Chris@34 1326 if (hasLightBackground()) {
Chris@34 1327 paint.setPen(QPen(Qt::black, 2));
Chris@34 1328 } else {
Chris@34 1329 paint.setPen(QPen(Qt::white, 2));
Chris@34 1330 }
Chris@34 1331 if (closeToLeft) {
Chris@34 1332 paint.drawLine(p0, 1, p1, 1);
Chris@34 1333 paint.drawLine(p0, 0, p0, height());
Chris@34 1334 paint.drawLine(p0, height() - 1, p1, height() - 1);
Chris@34 1335 } else if (closeToRight) {
Chris@34 1336 paint.drawLine(p0, 1, p1, 1);
Chris@34 1337 paint.drawLine(p1, 0, p1, height());
Chris@34 1338 paint.drawLine(p0, height() - 1, p1, height() - 1);
Chris@34 1339 } else {
Chris@34 1340 paint.setBrush(Qt::NoBrush);
Chris@34 1341 paint.drawRect(p0, 1, p1 - p0, height() - 2);
Chris@34 1342 }
Chris@34 1343 paint.restore();
Chris@34 1344 }
Chris@34 1345
Chris@10 1346 if (sampleRate && shouldLabelSelections()) {
Chris@10 1347
Chris@10 1348 QString startText = QString("%1 / %2")
Chris@10 1349 .arg(QString::fromStdString
Chris@10 1350 (RealTime::frame2RealTime
Chris@10 1351 (i->getStartFrame(), sampleRate).toText(true)))
Chris@10 1352 .arg(i->getStartFrame());
Chris@10 1353
Chris@10 1354 QString endText = QString(" %1 / %2")
Chris@10 1355 .arg(QString::fromStdString
Chris@10 1356 (RealTime::frame2RealTime
Chris@10 1357 (i->getEndFrame(), sampleRate).toText(true)))
Chris@10 1358 .arg(i->getEndFrame());
Chris@10 1359
Chris@10 1360 QString durationText = QString("(%1 / %2) ")
Chris@10 1361 .arg(QString::fromStdString
Chris@10 1362 (RealTime::frame2RealTime
Chris@10 1363 (i->getEndFrame() - i->getStartFrame(), sampleRate)
Chris@10 1364 .toText(true)))
Chris@10 1365 .arg(i->getEndFrame() - i->getStartFrame());
Chris@10 1366
Chris@10 1367 int sw = metrics.width(startText),
Chris@10 1368 ew = metrics.width(endText),
Chris@10 1369 dw = metrics.width(durationText);
Chris@10 1370
Chris@10 1371 int sy = metrics.ascent() + metrics.height() + 4;
Chris@10 1372 int ey = sy;
Chris@10 1373 int dy = sy + metrics.height();
Chris@10 1374
Chris@10 1375 int sx = p0 + 2;
Chris@10 1376 int ex = sx;
Chris@10 1377 int dx = sx;
Chris@10 1378
Chris@10 1379 if (sw + ew > (p1 - p0)) {
Chris@10 1380 ey += metrics.height();
Chris@10 1381 dy += metrics.height();
Chris@10 1382 }
Chris@10 1383
Chris@10 1384 if (ew < (p1 - p0)) {
Chris@10 1385 ex = p1 - 2 - ew;
Chris@10 1386 }
Chris@10 1387
Chris@10 1388 if (dw < (p1 - p0)) {
Chris@10 1389 dx = p1 - 2 - dw;
Chris@10 1390 }
Chris@10 1391
Chris@10 1392 paint.drawText(sx, sy, startText);
Chris@10 1393 paint.drawText(ex, ey, endText);
Chris@10 1394 paint.drawText(dx, dy, durationText);
Chris@10 1395 }
Chris@9 1396 }
Chris@9 1397
Chris@9 1398 paint.restore();
Chris@9 1399 }
Chris@9 1400
Chris@3 1401 QString
Chris@3 1402 View::toXmlString(QString indent, QString extraAttributes) const
Chris@3 1403 {
Chris@3 1404 QString s;
Chris@3 1405
Chris@3 1406 s += indent;
Chris@3 1407
Chris@3 1408 s += QString("<view "
Chris@3 1409 "centre=\"%1\" "
Chris@3 1410 "zoom=\"%2\" "
Chris@3 1411 "followPan=\"%3\" "
Chris@3 1412 "followZoom=\"%4\" "
Chris@3 1413 "tracking=\"%5\" "
Chris@3 1414 "light=\"%6\" %7>\n")
Chris@3 1415 .arg(m_centreFrame)
Chris@3 1416 .arg(m_zoomLevel)
Chris@3 1417 .arg(m_followPan)
Chris@3 1418 .arg(m_followZoom)
Chris@3 1419 .arg(m_followPlay == PlaybackScrollContinuous ? "scroll" :
Chris@3 1420 m_followPlay == PlaybackScrollPage ? "page" : "ignore")
Chris@3 1421 .arg(m_lightBackground)
Chris@3 1422 .arg(extraAttributes);
Chris@3 1423
Chris@3 1424 for (size_t i = 0; i < m_layers.size(); ++i) {
Chris@3 1425 s += m_layers[i]->toXmlString(indent + " ");
Chris@3 1426 }
Chris@3 1427
Chris@4 1428 s += indent + "</view>\n";
Chris@3 1429
Chris@3 1430 return s;
Chris@3 1431 }
Chris@3 1432
Chris@29 1433 ViewPropertyContainer::ViewPropertyContainer(View *v) :
Chris@29 1434 m_v(v)
Chris@29 1435 {
Chris@29 1436 connect(m_v, SIGNAL(propertyChanged(PropertyName)),
Chris@29 1437 this, SIGNAL(propertyChanged(PropertyName)));
Chris@29 1438 }
Chris@3 1439
Chris@0 1440 #ifdef INCLUDE_MOCFILES
Chris@0 1441 #include "View.moc.cpp"
Chris@0 1442 #endif
Chris@0 1443