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