[SOLVED]Lines between QTreeWidget items

Sorin

I'm trying to add some lines between items form a QTreeWidget( with only a column ) but when I'm hovering over the items, the lines disappear( only if I'm hovering from top to bottom!!! ). What I'm missing here?

@void MyTreeWidget::drawRow( QPainter* p, const QStyleOptionViewItem &opt, const QModelIndex &idx ) const
{
QTreeWidget::drawRow( p, opt, idx );

QModelIndex s = idx.sibling( idx.row(), 0 );
if ( s.isValid() )
{
QRect rect = visualRect( s );
int py = rect.y();
int ph = rect.height();
int pw = rect.width();
p->setPen( QColor( 82, 82, 82 ) );
p->drawLine( 0, py + ph, pw + 10, py + ph );
}
}@

Thanks!

Sorin

added a small working app for better viewing:

@#include<QApplication>
#include<QTreeWidget>
#include<QHeaderView>
#include<QPainter>

class MyTreeWidget : public QTreeWidget
{
public:
MyTreeWidget( QWidget* parent = 0 ) : QTreeWidget( parent )
{
setContentsMargins( 0, 0, 0, 0 );
setColumnCount( 1 );

    header()->setVisible( false );
}

void drawRow( QPainter* p, const QStyleOptionViewItem &opt, const QModelIndex &idx ) const
{
   QTreeWidget::drawRow( p, opt, idx );

   QModelIndex s = idx.sibling( idx.row(), 0 );
       if ( s.isValid() )
       {
            QRect rect = visualRect( s );
            int py = rect.y();
            int ph = rect.height();
            int pw = rect.width();
            p->setPen( QColor( 82, 82, 82 ) );
            p->drawLine( 0, py + ph, pw + 10, py + ph );
   }
}

};

int main( int argc, char* argv[] )
{
QApplication app( argc, argv );
MyTreeWidget* treeWidget = new MyTreeWidget;

QTreeWidgetItem* treeItem1 = new QTreeWidgetItem( treeWidget, 0 );
treeItem1->setText( 0, "test1" );

QTreeWidgetItem* treeItem2 = new QTreeWidgetItem( treeWidget, 0 );
treeItem2->setText( 0, "test2" );

QTreeWidgetItem* treeItem3 = new QTreeWidgetItem( treeWidget, 0 );
treeItem3->setText( 0, "test3" );

QTreeWidgetItem* treeItem4 = new QTreeWidgetItem( treeWidget, 0 );
treeItem4->setText( 0, "test4" );

QTreeWidgetItem* treeItem5 = new QTreeWidgetItem( treeWidget, 0 );
treeItem5->setText( 0, "test5" );

treeWidget->show();

return app.exec();

}@

Sorin

Pfff, found the answer, just add @p->drawLine( 0, py, pw + 10, py );@ to drawRow method

infoctopus

Consider using CSS styling, http://doc.qt.nokia.com/latest/stylesheet-reference.html see QTreeWidget/View