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