[Qt-interest] Hide deleted rows in QSqlTableModel

[Thomas Richard]

Err, unfortunately the changes do not get reverted. I thought they would 
because i used some old testcode which made every row visibile again manually. 
It seems like headerDataChanged isn't emitted when a deleted row gets 
reverted. I think this is a bug though. Should i report it? 

I can't seem to find a way to make revert work correctly then it seems. Too 
bad.

Greetings
Thomas

On Saturday 28 November 2009 19:51:50 you wrote:
> Hey,
> 
> This is what I came up with. I think it does it's job good enough for me.
>  This treeview hides a row when delete is clicked and you didn't call
>  submitAll() yet. It unhides the row when you would call revertAll().
> 
> ImpTreeView.h
> 
> class ImpTreeView : public QTreeView
> {
>   Q_OBJECT
> 
> public:
>   ImpTreeView(QWidget *parent = 0);
> 
>   void setModel ( QAbstractItemModel * model );
> 
> private slots:
>   void headerDataChanged(Qt::Orientation orientation, int first, int last);
> };
> 
> ImpTreeView.cpp
> 
> ImpTreeView::ImpTreeView(QWidget *parent ) : QTreeView(parent) {}
> 
> void ImpTreeView::setModel ( QAbstractItemModel * model )
> {
>   connect(model, SIGNAL(headerDataChanged(Qt::Orientation,int,int)), this,
> 		SLOT(headerDataChanged(Qt::Orientation,int,int)));
> 
>   QTreeView::setModel(model);
> }
> 
> void ImpTreeView::headerDataChanged(Qt::Orientation orientation, int first,
> int last)
> {
>   if(orientation == Qt::Vertical)
>   {
>     for(int i = first; i <= last; ++i)
>     {
>       QVariant sign = model()->headerData(i, orientation);
>       if (sign == QLatin1String ("!"))
>         setRowHidden(i, QModelIndex(), true);
>     }
>   }
> }
> 
> I hope this is useful for someone else too ;)
> 
> Greetings
> Thomas
>