QTableView, no selection rectangle

[alisami]

Hi,

Is it possible to hide the selection rectangle for the table view items when the item is highlighted and selected ?

I mean what I want is to select the cell and paint its background but I don't want to see the dotted selection rectangle around the cell.

Sami

[spirit]

try this


...
setSelectionMode(QAbstractItemView::NoSelection);
...

or you can implement your own delegate and do not draw selection.

[alisami]

Actually what I want is to select a row when I click on a cell, and I'm using setSelectionMode(QAbstractItemView::SingleSelectio n) and setSelectionBehavior(QAbstractItemView::SelectRows ).

What I don't want is the dotted rectangle displayed when I click on a cell. It can be easily seen when selection mode is set to `NoSelection`. It does not selects the cell, but the active cell is shown with this rectangle.

[spirit]

now it's clear. so, you need to implement your own delegate and don't draw dotten focus rect.

[jpn]

view->setFocusPolicy(Qt::NoFocus);

[spirit]

view->setFocusPolicy(Qt::NoFocus);


what about keyboard navigation in this case? it will not work.

[jpn]

What's the point of having focus if he wants to hide it? :)

[spirit]

that's true. :) but I think he wants to have keyboard navigation I think. :)

[alisami]

What's the point of having focus if he wants to hide it? :)

that will do the trick but there is a minor bug ( I guess this is not a feature :) ), when focus is deactivated, when a cell is double clicked for editing, after the editing, the focus rectangle becomes active again.

setting the item flags to un-editable mode fixes that problem.

is there a way to set the table as read-only so that none of the items are editable?

[alisami]

that's true. :) but I think he wants to have keyboard navigation I think. :)

Yeah actually I may need keyboard navigation. But I guess I can implement keyboard inputs to change the selected rows, without using the focus.

[spirit]

do you think this is bet solution to implement navigation of treeView which is already works fine insted of creating custom delegate and write several lines of code? I don't thinks so.

[alisami]

do you think this is bet solution to implement navigation of treeView which is already works fine insted of creating custom delegate and write several lines of code? I don't thinks so.

can you describe which part I have to reimplement so that I can lose the focus rectangle?

the main reason why I want to do such things is that, I want to implement an outlook-like message list, and I think the best way is to use QTableWidget. do I proceed in the right direction or do you have any other suggestion ?

[spirit]

example


class MyDelegate: public QItemDelegate
{
Q_OBJECT
public:
virtual void drawFocus ( QPainter * /*painter*/, const QStyleOptionViewItem & /*option*/, const QRect & /*rect*/ ) const {}
};
...
QTableWidget *table = new QTableWidget(10, 10);
table->setItemDelegate(new MyDelegate());
for (int row = 0; row < 10; ++row) {
for (int col = 0; col < 10; ++col) {
QTableWidgetItem *item = new QTableWidgetItem();
table->setItem(row, col, item);
}
}
...

[alisami]

example


class MyDelegate: public QItemDelegate
{
Q_OBJECT
public:
virtual void drawFocus ( QPainter * /*painter*/, const QStyleOptionViewItem & /*option*/, const QRect & /*rect*/ ) const {}
};
...
QTableWidget *table = new QTableWidget(10, 10);
table->setItemDelegate(new MyDelegate());
for (int row = 0; row < 10; ++row) {
for (int col = 0; col < 10; ++col) {
QTableWidgetItem *item = new QTableWidgetItem();
table->setItem(row, col, item);
}
}
...


Thanks a lot Spirit, for not giving up on me :)
I finally got what I need.

Sami