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