connecting CheckBox inside QTableWidget with a function

Hi,

i have a QGraphicsItem that i want to be hidden or shown, due to its checkmark which i want to place inside a TableWidget. What i have so far:

Code:

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QTableWidget *table = new QTableWidget(8,3);
QTableWidgetItem *item = new QTableWidgetItem(1);
item->data(Qt::CheckStateRole);
item->setCeckState(Qt::Checked);
table->setItem(3,0,item);

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... which creates a wonderful CheckBox inside my table. But how can i link the check mark state to my GraphicsItem?
I tried several signals provided by the QTableWidget class, but some of the ones i tried produced a compiler error stating, that this signal doesn't exist. And the others that work, don't seem to be appropriate for my problem.

Thanks in advance!

Quote:

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Originally Posted by Merkura

But how can i link the check mark state to my GraphicsItem?
I tried several signals provided by the QTableWidget class, but some of the ones i tried produced a compiler error stating, that this signal doesn't exist. And the others that work, don't seem to be appropriate for my problem.

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QTableWidget::itemChanged() is the closest you can get with available signals. You just have to keep in mind that it gets emitted whenever any item data changes, not just check state. A signal like checkStateChanged() has been requested but unfortunately Trolltech rejected the idea. See also QxtTableWidget.

You can set the pointer to your graphics item in the QTableWidgetItem (setData()), then use the QTableWidget signal itemClicked(QTableWidgetItem* item) & see if it's in the right column, or data() != NULL, or some other way to validate that it's one of your checkbox items. Then you can use the pointer to show/hide as needed.

Vycke