bool QgsAppLegendInterface::groupExists( int groupIndex )
{
QTreeWidgetItem * item = getItem (groupIndex);
QgsLegendItem* legendItem = dynamic_cast<QgsLegendItem *>( item );
if ( !legendItem )
{
return false;
}
return legendItem->type() == QgsLegendItem::LEGEND_GROUP;
}
/** Overloads cmpare function of QListViewItem
* @note The symbology group must always be the second in the list
*/
int QgsLegendSymbologyGroup::compare( QTreeWidgetItem * i, int col, bool ascending )
{
Q_UNUSED( col );
Q_UNUSED( ascending );
QgsLegendItem * myItem = dynamic_cast<QgsLegendItem *>( i ) ;
if ( myItem->type() == QgsLegendItem::LEGEND_PROPERTY_GROUP )
{
return 1;
}
else
{
return -1;
}
}
QTreeWidgetItem *QgsAppLegendInterface::getItem(int itemIndex)
{
int itemCount = 0;
for (QTreeWidgetItem* theItem = mLegend->firstItem(); theItem; theItem = mLegend->nextItem( theItem ) )
{
QgsLegendItem* legendItem = dynamic_cast<QgsLegendItem *>( theItem );
if (legendItem->type() == QgsLegendItem::LEGEND_GROUP) {
if (itemCount == itemIndex)
{
return theItem;
}
else
{
itemCount = itemCount + 1;
}
}
}
return NULL;
}