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