Qt-interest Archive, June 2007
QListView and subclassed QItemDelegate with big widget-editor
Message 1 in thread
Welcome
I want to use QListView with delegate. This delegate need to create
widget build from 2 or 3 lines. It's bigger then normal list item so
I'm setting new size apropriate to widget size in SizeHintRole for
item index.
Now - my problem lies in correct choosing item by mouseclicking them.
If I activate editor in first item - then it's OK, widget is showned
with correct size. But when I click in place where normally is second
item (now hiden beneth editor) - QListView thinks that I'm choosing
this item. But its inside my widget.
From studing QListView mousePressEvent method I see that my editor
doesn't have focus - so it's being closed.
Here is my delegate's code:
QWidget *ShipComponentDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &/* option */, const QModelIndex & index ) const
{
model=(const_cast<QAbstractItemModel*>(index.model()));
QString name = index.model()->data(index, Qt::DisplayRole).toString();
QListView* list= static_cast<QListView*>(parent->parent());
CShipComponentDlg *editor = new CShipComponentDlg(parent);
editor->setAutoFillBackground(true);
model->setData(index,QVariant(editor->sizeHint()),Qt::SizeHintRole);
iRow=index.row();
list->doItemsLayout();
return editor;
}
void ShipComponentDelegate::setEditorData(QWidget *editor,
const QModelIndex &index) const
{
QWidget *test=NULL;
CShipComponentDlg *ShipComponent = static_cast<CShipComponentDlg*>(editor);
ShipComponent->setComponentName(name);
}
void ShipComponentDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
const QModelIndex &index) const
{
QString name = index.model()->data(index, Qt::DisplayRole).toString();
qDebug()<<name<<" setModelData";
}
void ShipComponentDelegate::updateEditorGeometry(QWidget *editor,
const QStyleOptionViewItem &option, const QModelIndex & index ) const
{
editor->setGeometry(option.rect);
}
void ShipComponentDelegate::onCloseEditor(QWidget *editor, QAbstractItemDelegate::EndEditHint hint /* = NoHint */)
{
//iRow - row with previously selected item
QListView* list1= static_cast<QListView*>(editor->parent()->parent());
QModelIndex index=model->index(iRow,0);
QString name = index.model()->data(index, Qt::DisplayRole).toString();
qDebug()<<name<<" onCloseEditor";
bNoSetModel=true;
model->setData(index,QVariant(),Qt::SizeHintRole);
list1->doItemsLayout();
}
--
[ signature omitted ]
