Qt-interest Archive, February 2007
controlling QTreeView cells
Message 1 in thread
Hi,
I have a QTreeView that looks something like this at runtime:
---------------------------------------------
|Process | Initials | Date |
---------------------------------------------
|Visual Inspection | TDB | 02/02/2007 |
---------------------------------------------
|Chassis Assembly | | |
---------------------------------------------
What I would like to accomplish is this:
1) Automatically fill in the initials of the user when the cell under the
'Initials' column is double clicked.
2) Auto set the corresonding date column at the same time.
I was playing around with a custom subclass of QItemDelegate using a
QPushButton as the editor. I can get it to work for 1) if I double click and
then hit 'Enter'. I also tried playing around with the event filter for the
QTreeView, but that didn't work. Any ideas on how to get 1) to work? Then how
would I go about 2)?
Thanks,
Tom
PS: I am using Qt 4.2.2.
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Message 2 in thread
Tom Brown wrote:
>Hi,
>
>I have a QTreeView that looks something like this at runtime:
>---------------------------------------------
>|Process | Initials | Date |
>---------------------------------------------
>|Visual Inspection | TDB | 02/02/2007 |
>---------------------------------------------
>|Chassis Assembly | | |
>---------------------------------------------
>
>What I would like to accomplish is this:
>1) Automatically fill in the initials of the user when the cell under the
>'Initials' column is double clicked.
>2) Auto set the corresonding date column at the same time.
>
>
>
1) set each item editable (double click/press F2 allows keyborad in)
item->setFlags(item->flags() | Qt::ItemIsEditable);
2) Connect itemChanged signal to a slot
disconnect(this, SIGNAL(itemChanged(QTreeWidgetItem *, int)),
this, SLOT(updateDomElement(QTreeWidgetItem *, int)));
3) make the change on both tree view and dom data.
void xxx::updateDomElement(QTreeWidgetItem *item, int column)
{
if (column == 1)
{
QDomElement oldElement = … ;
QDomElement newElement = … ;
QDomText newText = domDocument.createTextNode(…);
newElement.appendChild(newText);
element.replaceChild(newElement, oldElement);
// update the next column also
}
}
Lingfa
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Message 3 in thread
On Friday 02 February 2007 14:03, Tom Brown wrote:
> Hi,
>
> I have a QTreeView that looks something like this at runtime:
> ---------------------------------------------
> |Process | Initials | Date |
> ---------------------------------------------
> |Visual Inspection | TDB | 02/02/2007 |
> ---------------------------------------------
> |Chassis Assembly | | |
> ---------------------------------------------
>
> What I would like to accomplish is this:
> 1) Automatically fill in the initials of the user when the cell under the
> 'Initials' column is double clicked.
> 2) Auto set the corresonding date column at the same time.
I finally figured out how to do this and it was a lot easier than I thought.
The key was to connect the doubleClicked() signal of the QTreeView to a
custom slot and set the data there. Then using QModelIndex::sibling() I was
able to set the date in the next column.
Thanks,
Tom
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