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