src/mvc/delegate.cpp

   1 #include "delegate.h"
   2 #include "eventmodel.h"
   3
   4 #include <QDebug>
   5 #include <QPainter>
   6
   7 const int RADIUS = 10;
   8 const int SPACER = 23;
   9
  10 const double scaleFactor1 = 0.4;
  11 const double scaleFactor2 = 0.8;
  12
  13 Delegate::Delegate(QTreeView *aParent)
  14     : QItemDelegate(aParent)
  15     , mViewPtr(aParent)
  16 {
  17     mControls.clear();
  18     defineControls();
  19 }
  20
  21 Delegate::~Delegate()
  22 {
  23     QListIterator<ControlId> i(mControls.keys());
  24     while (i.hasNext())
  25     {
  26         delete mControls[i.next()]->image();
  27     }
  28 }
  29
  30 void Delegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
  31 {
  32     if(!mViewPtr)
  33         return;
  34
  35     QFont fontSmall = option.font;
  36     fontSmall.setBold(true);
  37     fontSmall.setPixelSize(option.rect.height()*scaleFactor1);
  38     QFontMetrics fmSmall(fontSmall);
  39
  40     QFont fontBig = option.font;
  41     fontBig.setBold(true);
  42     fontBig.setPixelSize(option.rect.height()*scaleFactor2);
  43     QFontMetrics fmBig(fontBig);
  44
  45     int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
  46
  47     painter->save();
  48
  49     QColor bkgrColor = Qt::cyan;
  50     QPen borderPen(bkgrColor.darker());
  51     if(hasParent(index))
  52     {
  53         if(isLast(index))
  54         {
  55             QLinearGradient lastGradient(option.rect.topLeft(), option.rect.bottomLeft());
  56             lastGradient.setColorAt(0.0, Qt::white);
  57             lastGradient.setColorAt(0.5, bkgrColor);
  58             lastGradient.setColorAt(1.0, Qt::white);
  59
  60             QPainterPath endPath;
  61             endPath.moveTo(option.rect.topLeft());
  62             endPath.lineTo(option.rect.bottomLeft()-QPoint(0, RADIUS));
  63             endPath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 180, 90);
  64             endPath.lineTo(option.rect.bottomRight()-QPoint(RADIUS, 0));
  65             endPath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, 90);
  66             endPath.lineTo(option.rect.topRight());
  67
  68             //painter->setBrush( bkgrColor );
  69             painter->setBrush(lastGradient);
  70             painter->setPen(borderPen);
  71             painter->drawPath(endPath);
  72
  73             painter->setFont(option.font);
  74         }
  75         else // middle elements
  76         {
  77
  78             QLinearGradient middleGradient(option.rect.topLeft(), option.rect.bottomLeft());
  79             middleGradient.setColorAt(0.0, Qt::white);
  80             middleGradient.setColorAt(0.25, bkgrColor);
  81             middleGradient.setColorAt(0.5, Qt::white);
  82             middleGradient.setColorAt(0.75, bkgrColor);
  83             middleGradient.setColorAt(1.0, Qt::white);
  84
  85             //painter->setBrush( bkgrColor );
  86             painter->setBrush(middleGradient);
  87             painter->setPen(Qt::NoPen);
  88             painter->drawRect(option.rect);
  89
  90             painter->setPen(borderPen);
  91             // vertical lines
  92             painter->drawLine(option.rect.topLeft(), option.rect.bottomLeft());
  93             painter->drawLine(option.rect.topRight(), option.rect.bottomRight());
  94             // horizontal lines
  95             painter->drawLine(option.rect.bottomLeft(), option.rect.bottomRight());
  96
  97             painter->setFont(option.font);
  98         }
  99
 100         // draw Controls
 101         // favourite
 102         if(static_cast<Event*>(index.internalPointer())->isFavourite())
 103             painter->drawImage(mControls[FavouriteControlOn]->drawPoint(option.rect),*mControls[FavouriteControlOn]->image());
 104         else
 105             painter->drawImage(mControls[FavouriteControlOff]->drawPoint(option.rect),*mControls[FavouriteControlOff]->image());
 106         // alarm
 107         if(static_cast<Event*>(index.internalPointer())->hasAlarm())
 108             painter->drawImage(mControls[AlarmControlOn]->drawPoint(option.rect),*mControls[AlarmControlOn]->image());
 109         else
 110             painter->drawImage(mControls[AlarmControlOff]->drawPoint(option.rect),*mControls[AlarmControlOff]->image());
 111         // map
 112         painter->drawImage(mControls[MapControl]->drawPoint(option.rect),*mControls[MapControl]->image());
 113
 114         // draw texts
 115         QPointF titlePointF;
 116         titlePointF = QPoint(option.rect.x()+SPACER,option.rect.y()+option.rect.height()-10);
 117         QString text = qVariantValue<QString>(index.data()) + ": " + static_cast<Event*>(index.internalPointer())->title();
 118         painter->drawText(titlePointF,text);
 119     }
 120     else // doesn't have parent - time-groups' elements (top items)
 121     {
 122         QLinearGradient titleGradient(option.rect.topLeft(), option.rect.topRight());
 123         //titleGradient.setColorAt(0.0, Qt::white);
 124         titleGradient.setColorAt(0.0, bkgrColor);
 125         titleGradient.setColorAt(0.5, Qt::white);
 126         titleGradient.setColorAt(1.0, bkgrColor);
 127
 128         QPainterPath titlePath;
 129         if(isExpanded(index))
 130         {
 131             titlePath.moveTo(option.rect.bottomLeft());
 132             titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
 133             titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
 134             titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
 135             titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
 136             titlePath.lineTo(option.rect.bottomRight());
 137             titlePath.closeSubpath();
 138         }
 139         else
 140         {
 141             titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
 142             titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
 143             titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
 144             titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
 145             titlePath.lineTo(option.rect.bottomRight()-QPoint(0, RADIUS));
 146             titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 0, -90);
 147             titlePath.lineTo(option.rect.bottomLeft()+QPoint(RADIUS, 0));
 148             titlePath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, -90);
 149             titlePath.closeSubpath();
 150         }
 151
 152         painter->setBrush(titleGradient);
 153         painter->setPen(borderPen);
 154         painter->drawPath(titlePath);
 155
 156         // draw icons
 157         painter->setFont(fontSmall);
 158         QPoint drawPoint =
 159             option.rect.topRight()
 160             - QPoint(
 161                     spacer + mControls[FavouriteControlOn]->image()->width(),
 162                     - option.rect.height()/2 + mControls[FavouriteControlOn]->image()->height()/2);
 163         painter->drawImage(drawPoint,*mControls[FavouriteControlOn]->image());
 164         painter->drawText(drawPoint+QPoint(mControls[FavouriteControlOn]->image()->width()+2, option.rect.height()/2),
 165                 QString::number(numberOfFavourities(index)));
 166         drawPoint.setX(drawPoint.x() - spacer - mControls[FavouriteControlOn]->image()->width());
 167         painter->drawImage(drawPoint,*mControls[AlarmControlOn]->image());
 168         painter->drawText(drawPoint+QPoint(mControls[FavouriteControlOn]->image()->width()+2, option.rect.height()/2),
 169                 QString::number(numberOfAlarms(index)));
 170         // draw texts
 171         QString numEvents = QString::number(index.model()->rowCount(index)).append("/");
 172         drawPoint.setX(drawPoint.x() - spacer - fmSmall.boundingRect(numEvents).width());
 173         drawPoint.setY(drawPoint.y() + option.rect.height()/2);
 174         painter->drawText(drawPoint,numEvents);
 175
 176         QPointF titlePointF = QPoint(
 177                 option.rect.x()+SPACER,
 178                 option.rect.y()+option.rect.height()-fmBig.descent());
 179         painter->setFont(fontBig);
 180
 181         painter->drawText(titlePointF,qVariantValue<QString>(index.data()));
 182     }
 183
 184     //// HIGHLIGHTING SELECTED ITEM
 185     //if (option.state & QStyle::State_Selected)
 186         //painter->fillRect(option.rect, option.palette.highlight());
 187
 188     painter->restore();
 189 }
 190
 191 QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
 192 {
 193     Q_UNUSED(option)
 194
 195     if (index.internalId() == 0) // time group
 196     {
 197         return QSize(40,40);
 198     }
 199     else // event
 200     {
 201         return QSize(100,100);
 202     }
 203 }
 204
 205 bool Delegate::hasParent( const QModelIndex &index ) const
 206 {
 207     if( index.parent().isValid() )
 208         return true;
 209     else
 210         return false;
 211 }
 212
 213 bool Delegate::isLast( const QModelIndex &index ) const
 214 {
 215     if(!hasParent(index))
 216         return false; // what should be returned here?
 217
 218     if(index.row() >= (index.model()->rowCount(index.parent())-1))
 219         return true;
 220     else
 221         return false;
 222 }
 223
 224 bool Delegate::isExpanded( const QModelIndex &index ) const
 225 {
 226     if( !mViewPtr )
 227         return false;
 228     else
 229         return mViewPtr->isExpanded( index );
 230 }
 231
 232 Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const
 233 {
 234     if(!hasParent(aIndex)) // time-group item (root item)
 235         return ControlNone;
 236
 237     QListIterator<ControlId> i(mControls.keys());
 238     while (i.hasNext())
 239     {
 240         ControlId id = i.next();
 241         if(mControls[id]->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
 242             return id;
 243     }
 244
 245     return ControlNone;
 246 }
 247
 248 void Delegate::defineControls()
 249 {
 250     Control *control;
 251     QPoint p(0,0);
 252     // FAVOURITE ICONs
 253     // on
 254     control = new Control(FavouriteControlOn,QString(":icons/favourite-onBig.png"));
 255     p = QPoint(0,SPACER);
 256     p.setX(p.x()-control->image()->width()-SPACER);
 257     control->setDrawPoint(p);
 258     mControls.insert(FavouriteControlOn,control);
 259     // off
 260     control = new Control(FavouriteControlOff,QString(":icons/favourite-offBig.png"));
 261     p = QPoint(0,SPACER);
 262     p.setX(p.x()-control->image()->width()-SPACER);
 263     control->setDrawPoint(p);
 264     mControls.insert(FavouriteControlOff,control);
 265
 266     // ALARM ICONs
 267     // on
 268     control = new Control(AlarmControlOn,QString(":icons/alarm-onBig.png"));
 269     p = mControls[FavouriteControlOn]->drawPoint();
 270     p.setX(p.x()-control->image()->width()-SPACER);
 271     control->setDrawPoint(p);
 272     mControls.insert(AlarmControlOn,control);
 273     // off
 274     control = new Control(AlarmControlOff,QString(":icons/alarm-offBig.png"));
 275     p = mControls[FavouriteControlOff]->drawPoint();
 276     p.setX(p.x()-control->image()->width()-SPACER);
 277     control->setDrawPoint(p);
 278     mControls.insert(AlarmControlOff,control);
 279
 280     // MAP ICON
 281     control = new Control(MapControl,QString(":icons/compassBig.png"));
 282     p = mControls[AlarmControlOn]->drawPoint();
 283     p.setX(p.x()-control->image()->width()-SPACER);
 284     control->setDrawPoint(p);
 285     mControls.insert(MapControl,control);
 286 }
 287
 288 bool Delegate::isPointFromRect(const QPoint &aPoint, const QRect &aRect) const
 289 {
 290     if( (aPoint.x()>=aRect.left() && aPoint.x()<=aRect.right()) && (aPoint.y()>=aRect.top() && aPoint.y()<=aRect.bottom()) )
 291         return true;
 292
 293     return false;
 294 }
 295
 296 int Delegate::numberOfFavourities(const QModelIndex &index) const
 297 {
 298     if(index.parent().isValid()) // it's event, not time-group
 299         return 0;
 300
 301     int nrofFavs = 0;
 302     for(int i=0; i<index.model()->rowCount(index); i++)
 303         if(static_cast<Event*>(index.child(i,0).internalPointer())->isFavourite())
 304             nrofFavs++;
 305
 306     return nrofFavs;
 307 }
 308
 309 int Delegate::numberOfAlarms(const QModelIndex &index) const
 310 {
 311     if(index.parent().isValid()) // it's event, not time-group
 312         return 0;
 313
 314     int nrofAlarms = 0;
 315     for(int i=0; i<index.model()->rowCount(index); i++)
 316         if(static_cast<Event*>(index.child(i,0).internalPointer())->hasAlarm())
 317             nrofAlarms++;
 318
 319     return nrofAlarms;
 320 }
 321