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         QPoint drawPoint =
 222             option.rect.topRight()
 223             - QPoint(
 224                     spacer + mControls[FavouriteControlOn]->image()->width(),
 225                     - option.rect.height()/2 + mControls[FavouriteControlOn]->image()->height()/2);
 226         painter->drawImage(drawPoint,*mControls[FavouriteControlOn]->image());
 227         painter->drawText(drawPoint+QPoint(mControls[FavouriteControlOn]->image()->width()+2, option.rect.height()/2),
 228                 QString::number(numberOfFavourities(index)));
 229 #ifdef MAEMO
 230         drawPoint.setX(drawPoint.x() - spacer - mControls[FavouriteControlOn]->image()->width());
 231         painter->drawImage(drawPoint,*mControls[AlarmControlOn]->image());
 232         painter->drawText(drawPoint+QPoint(mControls[FavouriteControlOn]->image()->width()+2, option.rect.height()/2),
 233                 QString::number(numberOfAlarms(index)));
 234 #endif
 235         // draw texts
 236         QString numEvents = QString::number(index.model()->rowCount(index)).append("/");
 237         drawPoint.setX(drawPoint.x() - spacer - fmSmall.boundingRect(numEvents).width());
 238         drawPoint.setY(drawPoint.y() + option.rect.height()/2);
 239         painter->drawText(drawPoint,numEvents);
 240
 241         QPointF titlePointF = QPoint(
 242                 option.rect.x()+SPACER,
 243                 option.rect.y()+option.rect.height()-fmBig.descent());
 244         painter->setFont(fontBig);
 245
 246         painter->drawText(titlePointF,qVariantValue<QString>(index.data()));
 247     }
 248
 249     //// HIGHLIGHTING SELECTED ITEM
 250     //if (option.state & QStyle::State_Selected)
 251         //painter->fillRect(option.rect, option.palette.highlight());
 252
 253     painter->restore();
 254 }
 255
 256 QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
 257 {
 258     Q_UNUSED(option)
 259
 260     if (index.internalId() == 0) // time group
 261     {
 262         return QSize(40,40);
 263     }
 264     else // event
 265     {
 266         return QSize(100,100);
 267     }
 268 }
 269
 270 bool Delegate::hasParent( const QModelIndex &index ) const
 271 {
 272     if( index.parent().isValid() )
 273         return true;
 274     else
 275         return false;
 276 }
 277
 278 bool Delegate::isLast( const QModelIndex &index ) const
 279 {
 280     if(!hasParent(index))
 281         return false; // what should be returned here?
 282
 283     if(index.row() >= (index.model()->rowCount(index.parent())-1))
 284         return true;
 285     else
 286         return false;
 287 }
 288
 289 bool Delegate::isExpanded( const QModelIndex &index ) const
 290 {
 291     if( !mViewPtr )
 292         return false;
 293     else
 294         return mViewPtr->isExpanded( index );
 295 }
 296
 297 Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const
 298 {
 299     if(!hasParent(aIndex)) // time-group item (root item)
 300         return ControlNone;
 301
 302     QListIterator<ControlId> i(mControls.keys());
 303     while (i.hasNext())
 304     {
 305         ControlId id = i.next();
 306         if(mControls[id]->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
 307         {
 308             if(id == WarningControl)
 309             {
 310                 if(static_cast<Event*>(aIndex.internalPointer())->hasTimeConflict())
 311                     return id;
 312             }
 313             else
 314                 return id;
 315         }
 316     }
 317
 318     return ControlNone;
 319 }
 320
 321 void Delegate::defineControls()
 322 {
 323     Control *control;
 324     QPoint p(0,0);
 325     // FAVOURITE ICONs
 326     // on
 327     control = new Control(FavouriteControlOn,QString(":icons/favourite-onBig.png"));
 328     p = QPoint(0,SPACER);
 329     p.setX(p.x()-control->image()->width()-SPACER);
 330     control->setDrawPoint(p);
 331     mControls.insert(FavouriteControlOn,control);
 332     // off
 333     control = new Control(FavouriteControlOff,QString(":icons/favourite-offBig.png"));
 334     p = QPoint(0,SPACER);
 335     p.setX(p.x()-control->image()->width()-SPACER);
 336     control->setDrawPoint(p);
 337     mControls.insert(FavouriteControlOff,control);
 338
 339 #ifdef MAEMO
 340     // ALARM ICONs
 341     // on
 342     control = new Control(AlarmControlOn,QString(":icons/alarm-onBig.png"));
 343     p = mControls[FavouriteControlOn]->drawPoint();
 344     p.setX(p.x()-control->image()->width()-SPACER);
 345     control->setDrawPoint(p);
 346     mControls.insert(AlarmControlOn,control);
 347     // off
 348     control = new Control(AlarmControlOff,QString(":icons/alarm-offBig.png"));
 349     p = mControls[FavouriteControlOff]->drawPoint();
 350     p.setX(p.x()-control->image()->width()-SPACER);
 351     control->setDrawPoint(p);
 352     mControls.insert(AlarmControlOff,control);
 353
 354     // MAP ICON
 355     control = new Control(MapControl,QString(":icons/compassBig.png"));
 356     p = mControls[AlarmControlOn]->drawPoint();
 357     p.setX(p.x()-control->image()->width()-SPACER);
 358     control->setDrawPoint(p);
 359     mControls.insert(MapControl,control);
 360 #else
 361     // MAP ICON
 362     control = new Control(MapControl,QString(":icons/compassBig.png"));
 363     p = mControls[FavouriteControlOn]->drawPoint();
 364     p.setX(p.x()-control->image()->width()-SPACER);
 365     control->setDrawPoint(p);
 366     mControls.insert(MapControl,control);
 367 #endif
 368
 369     // WARNING ICON
 370     control = new Control(WarningControl,QString(":icons/exclamation.png"));
 371     p = mControls[MapControl]->drawPoint();
 372     p.setX(p.x()-control->image()->width()-SPACER);
 373     control->setDrawPoint(p);
 374     mControls.insert(WarningControl,control);
 375 }
 376
 377 bool Delegate::isPointFromRect(const QPoint &aPoint, const QRect &aRect) const
 378 {
 379     if( (aPoint.x()>=aRect.left() && aPoint.x()<=aRect.right()) && (aPoint.y()>=aRect.top() && aPoint.y()<=aRect.bottom()) )
 380         return true;
 381
 382     return false;
 383 }
 384
 385 int Delegate::numberOfFavourities(const QModelIndex &index) const
 386 {
 387     if(index.parent().isValid()) // it's event, not time-group
 388         return 0;
 389
 390     int nrofFavs = 0;
 391     for(int i=0; i<index.model()->rowCount(index); i++)
 392         if(static_cast<Event*>(index.child(i,0).internalPointer())->isFavourite())
 393             nrofFavs++;
 394
 395     return nrofFavs;
 396 }
 397
 398 int Delegate::numberOfAlarms(const QModelIndex &index) const
 399 {
 400     if(index.parent().isValid()) // it's event, not time-group
 401         return 0;
 402
 403     int nrofAlarms = 0;
 404     for(int i=0; i<index.model()->rowCount(index); i++)
 405         if(static_cast<Event*>(index.child(i,0).internalPointer())->hasAlarm())
 406             nrofAlarms++;
 407
 408     return nrofAlarms;
 409 }
 410