QListWidget Question

[boudie]

In almost all of my apps I put a function setButtons() where I enable/disable all kinds of controls.
After every action, like inserting records, opening files, closing files, editing fields or making coffee etc, I call setButtons() to put every control in a valid state. Once used to this approach, you'll never have to think about how to keep things in sync again.

[bbad68]

For highlighting a row use setCurrentItem() or an equivalent for selection.

I'm not sure what I'm doing wrong, but even when I set the current item, it does not get highlighted.

For example:

ui.layerList->setCurrentItem(layer7);

ui.layerList->setCurrentItem(layer7);

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After doing this, the current item is set to layer7, but it isn't highlighted.
I also tried QListWidgetItem::setSelected(true) but it still doesnt get highlighted.

[wysota]

We'd have to see the bigger picture. We don't even know what "layer7" is What is the selection mode of the widget? Is the item selectable at all, what does flags() return for it?

[bbad68]

Here's a snippet of my code (the last 3 lines cane be ignored):

void warmup::on_addLayerButton_clicked()
{
	int nRows = ui.layerList->count();
 
	QListWidgetItem *newLayer = new QListWidgetItem;
	Qt::ItemFlags flags = Qt::ItemIsDragEnabled | Qt::ItemIsSelectable | Qt::ItemIsEnabled;
	newLayer->setText(tr("Layer %1").arg(nRows+1));
	ui.layerList->addItem(newLayer);
	newLayer->setFlags(flags);
 
	clearLayerData();
	ui.layerList->setCurrentItem(newLayer);
	getLayerData(ui.layerList->row(newLayer));
 
}

void warmup::on_addLayerButton_clicked()
{
	int nRows = ui.layerList->count();

	QListWidgetItem *newLayer = new QListWidgetItem;
	Qt::ItemFlags flags = Qt::ItemIsDragEnabled | Qt::ItemIsSelectable | Qt::ItemIsEnabled;
	newLayer->setText(tr("Layer %1").arg(nRows+1));
	ui.layerList->addItem(newLayer);
	newLayer->setFlags(flags);

	clearLayerData();
	ui.layerList->setCurrentItem(newLayer);
	getLayerData(ui.layerList->row(newLayer));

}

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I have a QListWidget 'layerList', and when the 'Add' button is clicked, a new QListWidgetItem 'newLayer' is created. I'm trying to figure out how to make it so that when a 'newLayer' is created, is it automatically set as the current item AND highlighted. So far all I have managed to do is set it as the current item. The flags for the 'newLayer' are listed in the code above, the selection mode for 'layerList' is set to SingleSelection, and the selection behavior for 'layerList' is SelectItems. I hope this helps clear up what I'm asking

[axeljaeger]

Try setCurrentItem(newLayer, QItemSelectionModel::Select)

[bbad68]

Try setCurrentItem(newLayer, QItemSelectionModel::Select)

Hmm, still doesn't seem to be working

[wysota]

To me it seems you are doing something wrong if setSelected(true) didn't work. Either the item is not selectable or your code is never ran or something unselects the item after you select it.