src/mvc/delegate.cpp

   1 #include "delegate.h"
   2 #include "eventmodel.h"
   3 #include <track.h>
   4
   5 #include <QDebug>
   6 #include <QPainter>
   7
   8 const int RADIUS = 10;
   9 const int SPACER = 10;
  10
  11 const double scaleFactor1 = 0.4;
  12 const double scaleFactor2 = 0.8;
  13
  14 Delegate::Delegate(QTreeView *aParent)
  15     : QItemDelegate(aParent)
  16     , mViewPtr(aParent)
  17 {
  18     mControls.clear();
  19     defineControls();
  20 }
  21
  22 Delegate::~Delegate()
  23 {
  24     QListIterator<ControlId> i(mControls.keys());
  25     while (i.hasNext())
  26     {
  27         delete mControls[i.next()]->image();
  28     }
  29 }
  30
  31 void Delegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
  32 {
  33     if(!mViewPtr)
  34         return;
  35
  36     painter->save();
  37     QColor bkgrColor = Qt::cyan;
  38
  39     QPen borderPen(bkgrColor.darker());
  40     //QColor bkgrColor = QColor(0,0,113);
  41     //QPen borderPen(Qt::cyan);
  42     if(hasParent(index))
  43     {
  44         int aux = option.rect.height() - mControls[FavouriteControlOn]->drawPoint().y() - mControls[FavouriteControlOn]->image()->height();
  45         // font SMALL
  46         QFont fontSmall = option.font;
  47         fontSmall.setBold(false);
  48         fontSmall.setPixelSize(aux*0.2);
  49         QFontMetrics fmSmall(fontSmall);
  50         // font SMALL bold
  51         QFont fontSmallB = fontSmall;
  52         fontSmallB.setBold(true);
  53         QFontMetrics fmSmallB(fontSmallB);
  54
  55         // font BIG
  56         QFont fontBig = option.font;
  57         fontBig.setBold(false);
  58         fontBig.setPixelSize(aux*0.33);
  59         QFontMetrics fmBig(fontBig);
  60         // font BIG bold
  61         QFont fontBigB = fontBig;
  62         fontBigB.setBold(true);
  63         QFontMetrics fmBigB(fontBigB);
  64
  65         //int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
  66
  67         //Time conflicts are colored differently
  68         if ((static_cast<Event*>(index.internalPointer())->isFavourite())
  69             && (hasTimeConflict(index, index.parent())))
  70         {
  71             bkgrColor = Qt::yellow;
  72         }
  73
  74         if(isLast(index))
  75         {
  76             QLinearGradient lastGradient(option.rect.topLeft(), option.rect.bottomLeft());
  77             lastGradient.setColorAt(0.0, Qt::white);
  78             lastGradient.setColorAt(0.5, bkgrColor);
  79             lastGradient.setColorAt(1.0, Qt::white);
  80
  81             QPainterPath endPath;
  82             endPath.moveTo(option.rect.topLeft());
  83             endPath.lineTo(option.rect.bottomLeft()-QPoint(0, RADIUS));
  84             endPath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 180, 90);
  85             endPath.lineTo(option.rect.bottomRight()-QPoint(RADIUS, 0));
  86             endPath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, 90);
  87             endPath.lineTo(option.rect.topRight());
  88
  89             painter->setBrush( bkgrColor );
  90             //painter->setBrush(lastGradient);
  91             painter->setPen(borderPen);
  92             painter->drawPath(endPath);
  93
  94             painter->setFont(option.font);
  95         }
  96         else // middle elements
  97         {
  98             QLinearGradient middleGradient(option.rect.topLeft(), option.rect.bottomLeft());
  99             middleGradient.setColorAt(0.0, Qt::white);
 100             middleGradient.setColorAt(0.25, bkgrColor);
 101             middleGradient.setColorAt(0.5, Qt::white);
 102             middleGradient.setColorAt(0.75, bkgrColor);
 103             middleGradient.setColorAt(1.0, Qt::white);
 104
 105             painter->setBrush( bkgrColor );
 106             //painter->setBrush(middleGradient);
 107             painter->setPen(Qt::NoPen);
 108             painter->drawRect(option.rect);
 109
 110             painter->setPen(borderPen);
 111             // vertical lines
 112             painter->drawLine(option.rect.topLeft(), option.rect.bottomLeft());
 113             painter->drawLine(option.rect.topRight(), option.rect.bottomRight());
 114             // horizontal lines
 115             painter->drawLine(option.rect.bottomLeft(), option.rect.bottomRight());
 116
 117             painter->setFont(option.font);
 118         }
 119
 120         // draw Controls
 121         // favourite
 122         if(static_cast<Event*>(index.internalPointer())->isFavourite())
 123             painter->drawImage(mControls[FavouriteControlOn]->drawPoint(option.rect),*mControls[FavouriteControlOn]->image());
 124         else
 125             painter->drawImage(mControls[FavouriteControlOff]->drawPoint(option.rect),*mControls[FavouriteControlOff]->image());
 126 #ifdef MAEMO
 127         // alarm
 128         if(static_cast<Event*>(index.internalPointer())->hasAlarm())
 129             painter->drawImage(mControls[AlarmControlOn]->drawPoint(option.rect),*mControls[AlarmControlOn]->image());
 130         else
 131             painter->drawImage(mControls[AlarmControlOff]->drawPoint(option.rect),*mControls[AlarmControlOff]->image());
 132 #endif
 133         // map
 134         painter->drawImage(mControls[MapControl]->drawPoint(option.rect),*mControls[MapControl]->image());
 135         // Time conflict
 136         //if(static_cast<Event*>(index.internalPointer())->hasTimeConflict())
 137         if(bkgrColor == Qt::yellow)
 138         {
 139             painter->drawImage(mControls[WarningControlOn]->drawPoint(option.rect),*mControls[WarningControlOn]->image());
 140             mControls[WarningControlOn]->hasConflict=true;
 141         }
 142         else
 143         {
 144             painter->drawImage(mControls[WarningControlOff]->drawPoint(option.rect),*mControls[WarningControlOff]->image());
 145             mControls[WarningControlOn]->hasConflict=false;
 146         }
 147
 148         // draw texts
 149         Event *event = static_cast<Event*>(index.internalPointer());
 150         QPointF titlePointF(mControls[FavouriteControlOn]->drawPoint(option.rect));
 151         titlePointF.setX(option.rect.x()+SPACER);
 152         titlePointF.setY(titlePointF.y()+mControls[FavouriteControlOn]->image()->height());
 153         QTime start = event->start().time();
 154         painter->setFont(fontBig);
 155         painter->drawText(titlePointF,start.toString("hh:mm") + "-" + start.addSecs(event->duration()).toString("hh:mm") + ", " + event->room());
 156         // title
 157         titlePointF.setY(titlePointF.y()+fmBig.height()-fmBig.descent());
 158         painter->setFont(fontBigB);
 159         QString title = event->title();
 160         if(fmBigB.boundingRect(title).width() > (option.rect.width()-2*SPACER)) // the title won't fit the screen
 161         {
 162             // chop words from the end
 163             while( (fmBigB.boundingRect(title + "...").width() > (option.rect.width()-2*SPACER)) && !title.isEmpty())
 164             {
 165                 title.chop(1);
 166                 // chop characters one-by-one from the end
 167                 while( (!title.at(title.length()-1).isSpace()) && !title.isEmpty())
 168                 {
 169                     title.chop(1);
 170                 }
 171             }
 172             title += "...";
 173         }
 174         painter->drawText(titlePointF,title);
 175         // persons
 176         titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
 177         painter->setFont(fontSmall);
 178         painter->drawText(titlePointF,"Presenter(s): " + event->persons().join(" and "));
 179         // track
 180         titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
 181         painter->drawText(titlePointF,"Track: " + Track::retrieveTrackName(event->trackId()));
 182     }
 183     else // doesn't have parent - time-groups' elements (top items)
 184     {
 185         QFont fontSmall = option.font;
 186         fontSmall.setBold(true);
 187         fontSmall.setPixelSize(option.rect.height()*scaleFactor1);
 188         QFontMetrics fmSmall(fontSmall);
 189
 190         QFont fontBig = option.font;
 191         fontBig.setBold(true);
 192         fontBig.setPixelSize(option.rect.height()*scaleFactor2);
 193         QFontMetrics fmBig(fontBig);
 194
 195         int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
 196
 197         QLinearGradient titleGradient(option.rect.topLeft(), option.rect.topRight());
 198         //titleGradient.setColorAt(0.0, Qt::white);
 199         titleGradient.setColorAt(0.0, bkgrColor);
 200         titleGradient.setColorAt(0.5, Qt::white);
 201         titleGradient.setColorAt(1.0, bkgrColor);
 202
 203         QPainterPath titlePath;
 204         if(isExpanded(index))
 205         {
 206             titlePath.moveTo(option.rect.bottomLeft());
 207             titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
 208             titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
 209             titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
 210             titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
 211             titlePath.lineTo(option.rect.bottomRight());
 212             titlePath.closeSubpath();
 213         }
 214         else
 215         {
 216             titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
 217             titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
 218             titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
 219             titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
 220             titlePath.lineTo(option.rect.bottomRight()-QPoint(0, RADIUS));
 221             titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 0, -90);
 222             titlePath.lineTo(option.rect.bottomLeft()+QPoint(RADIUS, 0));
 223             titlePath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, -90);
 224             titlePath.closeSubpath();
 225         }
 226
 227         painter->setBrush(titleGradient);
 228         painter->setPen(borderPen);
 229         painter->drawPath(titlePath);
 230
 231         // draw icons
 232         painter->setFont(fontSmall);
 233         QPoint drawPoint =
 234             option.rect.topRight()
 235             - QPoint(
 236                     spacer + mControls[FavouriteControlOn]->image()->width(),
 237                     - option.rect.height()/2 + mControls[FavouriteControlOn]->image()->height()/2);
 238         painter->drawImage(drawPoint,*mControls[FavouriteControlOn]->image());
 239         painter->drawText(drawPoint+QPoint(mControls[FavouriteControlOn]->image()->width()+2, option.rect.height()/2),
 240                 QString::number(numberOfFavourities(index)));
 241 #ifdef MAEMO
 242         drawPoint.setX(drawPoint.x() - spacer - mControls[FavouriteControlOn]->image()->width());
 243         painter->drawImage(drawPoint,*mControls[AlarmControlOn]->image());
 244         painter->drawText(drawPoint+QPoint(mControls[FavouriteControlOn]->image()->width()+2, option.rect.height()/2),
 245                 QString::number(numberOfAlarms(index)));
 246 #endif
 247         // draw texts
 248         QString numEvents = QString::number(index.model()->rowCount(index)).append("/");
 249         drawPoint.setX(drawPoint.x() - spacer - fmSmall.boundingRect(numEvents).width());
 250         drawPoint.setY(drawPoint.y() + option.rect.height()/2);
 251         painter->drawText(drawPoint,numEvents);
 252
 253         QPointF titlePointF = QPoint(
 254                 option.rect.x()+SPACER,
 255                 option.rect.y()+option.rect.height()-fmBig.descent());
 256         painter->setFont(fontBig);
 257
 258         painter->drawText(titlePointF,qVariantValue<QString>(index.data()));
 259     }
 260
 261     //// HIGHLIGHTING SELECTED ITEM
 262     //if (option.state & QStyle::State_Selected)
 263         //painter->fillRect(option.rect, option.palette.highlight());
 264
 265     painter->restore();
 266 }
 267
 268 QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
 269 {
 270     Q_UNUSED(option)
 271
 272     if (index.internalId() == 0) // time group
 273     {
 274         return QSize(40,40);
 275     }
 276     else // event
 277     {
 278         return QSize(100,100);
 279     }
 280 }
 281
 282 bool Delegate::hasParent( const QModelIndex &index ) const
 283 {
 284     if( index.parent().isValid() )
 285         return true;
 286     else
 287         return false;
 288 }
 289
 290 bool Delegate::isLast( const QModelIndex &index ) const
 291 {
 292     if(!hasParent(index))
 293         return false; // what should be returned here?
 294
 295     if(index.row() >= (index.model()->rowCount(index.parent())-1))
 296         return true;
 297     else
 298         return false;
 299 }
 300
 301 bool Delegate::isExpanded( const QModelIndex &index ) const
 302 {
 303     if( !mViewPtr )
 304         return false;
 305     else
 306         return mViewPtr->isExpanded( index );
 307 }
 308
 309 Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const
 310 {
 311     if(!hasParent(aIndex)) // time-group item (root item)
 312         return ControlNone;
 313
 314     QListIterator<ControlId> i(mControls.keys());
 315     while (i.hasNext())
 316     {
 317         ControlId id = i.next();
 318         if((mControls[id]->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
 319             && (id != WarningControlOn) && (id != WarningControlOff))
 320         {
 321             return id;
 322         }
 323         else
 324         {
 325             if ((mControls[id]->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
 326             && (mControls[id]->hasConflict))
 327             {
 328             return id;
 329             }
 330         }
 331     }
 332
 333     return ControlNone;
 334 }
 335
 336 void Delegate::defineControls()
 337 {
 338     Control *control;
 339     QPoint p(0,0);
 340     // FAVOURITE ICONs
 341     // on
 342     control = new Control(FavouriteControlOn,QString(":icons/favourite-onBig.png"));
 343     p = QPoint(0,SPACER);
 344     p.setX(p.x()-control->image()->width()-SPACER);
 345     control->setDrawPoint(p);
 346     mControls.insert(FavouriteControlOn,control);
 347     // off
 348     control = new Control(FavouriteControlOff,QString(":icons/favourite-offBig.png"));
 349     p = QPoint(0,SPACER);
 350     p.setX(p.x()-control->image()->width()-SPACER);
 351     control->setDrawPoint(p);
 352     mControls.insert(FavouriteControlOff,control);
 353
 354 #ifdef MAEMO
 355     // ALARM ICONs
 356     // on
 357     control = new Control(AlarmControlOn,QString(":icons/alarm-onBig.png"));
 358     p = mControls[FavouriteControlOn]->drawPoint();
 359     p.setX(p.x()-control->image()->width()-SPACER);
 360     control->setDrawPoint(p);
 361     mControls.insert(AlarmControlOn,control);
 362     // off
 363     control = new Control(AlarmControlOff,QString(":icons/alarm-offBig.png"));
 364     p = mControls[FavouriteControlOff]->drawPoint();
 365     p.setX(p.x()-control->image()->width()-SPACER);
 366     control->setDrawPoint(p);
 367     mControls.insert(AlarmControlOff,control);
 368
 369     // MAP ICON
 370     control = new Control(MapControl,QString(":icons/compassBig.png"));
 371     p = mControls[AlarmControlOn]->drawPoint();
 372     p.setX(p.x()-control->image()->width()-SPACER);
 373     control->setDrawPoint(p);
 374     mControls.insert(MapControl,control);
 375 #else
 376     // MAP ICON
 377     control = new Control(MapControl,QString(":icons/compassBig.png"));
 378     p = mControls[FavouriteControlOn]->drawPoint();
 379     p.setX(p.x()-control->image()->width()-SPACER);
 380     control->setDrawPoint(p);
 381     mControls.insert(MapControl,control);
 382 #endif
 383
 384     // WARNING ICONs
 385     // on
 386     control = new Control(WarningControlOn,QString(":icons/exclamation-iconOn.png"));
 387     p = mControls[MapControl]->drawPoint();
 388     control->hasConflict = false;
 389     p.setX(p.x()-control->image()->width()-SPACER);
 390     control->setDrawPoint(p);
 391     mControls.insert(WarningControlOn,control);
 392     // off
 393     control = new Control(WarningControlOff,QString(":icons/exclamation-iconOff.png"));
 394     p = mControls[MapControl]->drawPoint();
 395     control->hasConflict = false;
 396     p.setX(p.x()-control->image()->width()-SPACER);
 397     control->setDrawPoint(p);
 398     mControls.insert(WarningControlOff,control);
 399 }
 400
 401 bool Delegate::isPointFromRect(const QPoint &aPoint, const QRect &aRect) const
 402 {
 403     if( (aPoint.x()>=aRect.left() && aPoint.x()<=aRect.right()) && (aPoint.y()>=aRect.top() && aPoint.y()<=aRect.bottom()) )
 404         return true;
 405
 406     return false;
 407 }
 408
 409 int Delegate::numberOfFavourities(const QModelIndex &index) const
 410 {
 411     if(index.parent().isValid()) // it's event, not time-group
 412         return 0;
 413
 414     int nrofFavs = 0;
 415     for(int i=0; i<index.model()->rowCount(index); i++)
 416         if(static_cast<Event*>(index.child(i,0).internalPointer())->isFavourite())
 417             nrofFavs++;
 418
 419     return nrofFavs;
 420 }
 421
 422 int Delegate::numberOfAlarms(const QModelIndex &index) const
 423 {
 424     if(index.parent().isValid()) // it's event, not time-group
 425         return 0;
 426
 427     int nrofAlarms = 0;
 428     for(int i=0; i<index.model()->rowCount(index); i++)
 429         if(static_cast<Event*>(index.child(i,0).internalPointer())->hasAlarm())
 430             nrofAlarms++;
 431
 432     return nrofAlarms;
 433 }
 434
 435 bool Delegate::hasTimeConflict(const QModelIndex &index, const QModelIndex &parent) const
 436 {
 437     Event *event = static_cast<Event*>(index.internalPointer());
 438     QTime start = event->start().time();
 439     QTime end = start.addSecs(event->duration());
 440     for(int i=0; i<parent.model()->rowCount(parent); i++)
 441     {
 442         if((event->id()!=static_cast<Event*>(parent.child(i,0).internalPointer())->id())
 443         &&
 444         (static_cast<Event*>(parent.child(i,0).internalPointer())->isFavourite()))
 445         {
 446             if (((start >= static_cast<Event*>(parent.child(i,0).internalPointer())->start().time())
 447             &&
 448             (start < static_cast<Event*>(parent.child(i,0).internalPointer())->start().time().addSecs(static_cast<Event*>(parent.child(i,0).internalPointer())->duration())))
 449             ||
 450             ((end > static_cast<Event*>(parent.child(i,0).internalPointer())->start().time())
 451             &&
 452             (end <= static_cast<Event*>(parent.child(i,0).internalPointer())->start().time().addSecs(static_cast<Event*>(parent.child(i,0).internalPointer())->duration()))))
 453             {
 454                 return true;
 455             }
 456         }
 457     }
 458     return false;
 459 }