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             painter->drawImage(mControls[WarningControlOn]->drawPoint(option.rect),*mControls[WarningControlOn]->image());
 139         else
 140             painter->drawImage(mControls[WarningControlOff]->drawPoint(option.rect),*mControls[WarningControlOff]->image());
 141
 142         // draw texts
 143         Event *event = static_cast<Event*>(index.internalPointer());
 144         QPointF titlePointF(mControls[FavouriteControlOn]->drawPoint(option.rect));
 145         titlePointF.setX(option.rect.x()+SPACER);
 146         titlePointF.setY(titlePointF.y()+mControls[FavouriteControlOn]->image()->height());
 147         QTime start = event->start().time();
 148         painter->setFont(fontBig);
 149         painter->drawText(titlePointF,start.toString("hh:mm") + "-" + start.addSecs(event->duration()).toString("hh:mm") + ", " + event->room());
 150         // title
 151         titlePointF.setY(titlePointF.y()+fmBig.height()-fmBig.descent());
 152         painter->setFont(fontBigB);
 153         QString title = event->title();
 154         if(fmBigB.boundingRect(title).width() > (option.rect.width()-2*SPACER)) // the title won't fit the screen
 155         {
 156             // chop words from the end
 157             while( (fmBigB.boundingRect(title + "...").width() > (option.rect.width()-2*SPACER)) && !title.isEmpty())
 158             {
 159                 title.chop(1);
 160                 // chop characters one-by-one from the end
 161                 while( (!title.at(title.length()-1).isSpace()) && !title.isEmpty())
 162                 {
 163                     title.chop(1);
 164                 }
 165             }
 166             title += "...";
 167         }
 168         painter->drawText(titlePointF,title);
 169         // persons
 170         titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
 171         painter->setFont(fontSmall);
 172         painter->drawText(titlePointF,"Presenter(s): " + event->persons().join(" and "));
 173         // track
 174         titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
 175         painter->drawText(titlePointF,"Track: " + Track::getTrackName(event->trackId()));
 176     }
 177     else // doesn't have parent - time-groups' elements (top items)
 178     {
 179         QFont fontSmall = option.font;
 180         fontSmall.setBold(true);
 181         fontSmall.setPixelSize(option.rect.height()*scaleFactor1);
 182         QFontMetrics fmSmall(fontSmall);
 183
 184         QFont fontBig = option.font;
 185         fontBig.setBold(true);
 186         fontBig.setPixelSize(option.rect.height()*scaleFactor2);
 187         QFontMetrics fmBig(fontBig);
 188
 189         int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
 190
 191         QLinearGradient titleGradient(option.rect.topLeft(), option.rect.topRight());
 192         //titleGradient.setColorAt(0.0, Qt::white);
 193         titleGradient.setColorAt(0.0, bkgrColor);
 194         titleGradient.setColorAt(0.5, Qt::white);
 195         titleGradient.setColorAt(1.0, bkgrColor);
 196
 197         QPainterPath titlePath;
 198         if(isExpanded(index))
 199         {
 200             titlePath.moveTo(option.rect.bottomLeft());
 201             titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
 202             titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
 203             titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
 204             titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
 205             titlePath.lineTo(option.rect.bottomRight());
 206             titlePath.closeSubpath();
 207         }
 208         else
 209         {
 210             titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
 211             titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
 212             titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
 213             titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
 214             titlePath.lineTo(option.rect.bottomRight()-QPoint(0, RADIUS));
 215             titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 0, -90);
 216             titlePath.lineTo(option.rect.bottomLeft()+QPoint(RADIUS, 0));
 217             titlePath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, -90);
 218             titlePath.closeSubpath();
 219         }
 220
 221         painter->setBrush(titleGradient);
 222         painter->setPen(borderPen);
 223         painter->drawPath(titlePath);
 224
 225         // draw icons
 226         painter->setFont(fontSmall);
 227         QPoint drawPoint =
 228             option.rect.topRight()
 229             - QPoint(
 230                     spacer + mControls[FavouriteControlOn]->image()->width(),
 231                     - option.rect.height()/2 + mControls[FavouriteControlOn]->image()->height()/2);
 232         painter->drawImage(drawPoint,*mControls[FavouriteControlOn]->image());
 233         painter->drawText(drawPoint+QPoint(mControls[FavouriteControlOn]->image()->width()+2, option.rect.height()/2),
 234                 QString::number(numberOfFavourities(index)));
 235 #ifdef MAEMO
 236         drawPoint.setX(drawPoint.x() - spacer - mControls[FavouriteControlOn]->image()->width());
 237         painter->drawImage(drawPoint,*mControls[AlarmControlOn]->image());
 238         painter->drawText(drawPoint+QPoint(mControls[FavouriteControlOn]->image()->width()+2, option.rect.height()/2),
 239                 QString::number(numberOfAlarms(index)));
 240 #endif
 241         // draw texts
 242         QString numEvents = QString::number(index.model()->rowCount(index)).append("/");
 243         drawPoint.setX(drawPoint.x() - spacer - fmSmall.boundingRect(numEvents).width());
 244         drawPoint.setY(drawPoint.y() + option.rect.height()/2);
 245         painter->drawText(drawPoint,numEvents);
 246
 247         QPointF titlePointF = QPoint(
 248                 option.rect.x()+SPACER,
 249                 option.rect.y()+option.rect.height()-fmBig.descent());
 250         painter->setFont(fontBig);
 251
 252         painter->drawText(titlePointF,qVariantValue<QString>(index.data()));
 253     }
 254
 255     //// HIGHLIGHTING SELECTED ITEM
 256     //if (option.state & QStyle::State_Selected)
 257         //painter->fillRect(option.rect, option.palette.highlight());
 258
 259     painter->restore();
 260 }
 261
 262 QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
 263 {
 264     Q_UNUSED(option)
 265
 266     if (index.internalId() == 0) // time group
 267     {
 268         return QSize(40,40);
 269     }
 270     else // event
 271     {
 272         return QSize(100,100);
 273     }
 274 }
 275
 276 bool Delegate::hasParent( const QModelIndex &index ) const
 277 {
 278     if( index.parent().isValid() )
 279         return true;
 280     else
 281         return false;
 282 }
 283
 284 bool Delegate::isLast( const QModelIndex &index ) const
 285 {
 286     if(!hasParent(index))
 287         return false; // what should be returned here?
 288
 289     if(index.row() >= (index.model()->rowCount(index.parent())-1))
 290         return true;
 291     else
 292         return false;
 293 }
 294
 295 bool Delegate::isExpanded( const QModelIndex &index ) const
 296 {
 297     if( !mViewPtr )
 298         return false;
 299     else
 300         return mViewPtr->isExpanded( index );
 301 }
 302
 303 Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const
 304 {
 305     if(!hasParent(aIndex)) // time-group item (root item)
 306         return ControlNone;
 307
 308     QListIterator<ControlId> i(mControls.keys());
 309     while (i.hasNext())
 310     {
 311         ControlId id = i.next();
 312         if(mControls[id]->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
 313             return id;
 314     }
 315
 316     return ControlNone;
 317 }
 318
 319 void Delegate::defineControls()
 320 {
 321     Control *control;
 322     QPoint p(0,0);
 323     // FAVOURITE ICONs
 324     // on
 325     control = new Control(FavouriteControlOn,QString(":icons/favourite-onBig.png"));
 326     p = QPoint(0,SPACER);
 327     p.setX(p.x()-control->image()->width()-SPACER);
 328     control->setDrawPoint(p);
 329     mControls.insert(FavouriteControlOn,control);
 330     // off
 331     control = new Control(FavouriteControlOff,QString(":icons/favourite-offBig.png"));
 332     p = QPoint(0,SPACER);
 333     p.setX(p.x()-control->image()->width()-SPACER);
 334     control->setDrawPoint(p);
 335     mControls.insert(FavouriteControlOff,control);
 336
 337 #ifdef MAEMO
 338     // ALARM ICONs
 339     // on
 340     control = new Control(AlarmControlOn,QString(":icons/alarm-onBig.png"));
 341     p = mControls[FavouriteControlOn]->drawPoint();
 342     p.setX(p.x()-control->image()->width()-SPACER);
 343     control->setDrawPoint(p);
 344     mControls.insert(AlarmControlOn,control);
 345     // off
 346     control = new Control(AlarmControlOff,QString(":icons/alarm-offBig.png"));
 347     p = mControls[FavouriteControlOff]->drawPoint();
 348     p.setX(p.x()-control->image()->width()-SPACER);
 349     control->setDrawPoint(p);
 350     mControls.insert(AlarmControlOff,control);
 351
 352     // MAP ICON
 353     control = new Control(MapControl,QString(":icons/compassBig.png"));
 354     p = mControls[AlarmControlOn]->drawPoint();
 355     p.setX(p.x()-control->image()->width()-SPACER);
 356     control->setDrawPoint(p);
 357     mControls.insert(MapControl,control);
 358 #else
 359     // MAP ICON
 360     control = new Control(MapControl,QString(":icons/compassBig.png"));
 361     p = mControls[FavouriteControlOn]->drawPoint();
 362     p.setX(p.x()-control->image()->width()-SPACER);
 363     control->setDrawPoint(p);
 364     mControls.insert(MapControl,control);
 365 #endif
 366
 367     // WARNING ICONs
 368     // on
 369     control = new Control(WarningControlOn,QString(":icons/exclamation-iconOn.png"));
 370     p = mControls[MapControl]->drawPoint();
 371     p.setX(p.x()-control->image()->width()-SPACER);
 372     control->setDrawPoint(p);
 373     mControls.insert(WarningControlOn,control);
 374     // off
 375     control = new Control(WarningControlOff,QString(":icons/exclamation-iconOff.png"));
 376     p = mControls[MapControl]->drawPoint();
 377     p.setX(p.x()-control->image()->width()-SPACER);
 378     control->setDrawPoint(p);
 379     mControls.insert(WarningControlOff,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 }