QTableWidget & cellWidget : some pointers

I am creating a QTableWidget and in each sell I am setting up a custom widget:

Code:

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for row in range(4):
 self.qTableWidget.setCellWidget(row, 0, QtGui.QDoubleSpinBox())

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This works fine. How ever when I change the value of spinBox, none of the signals
(cell*.* or item*.*) of QTableWidget is emitting. I would prefer this technique compare of another ones.

Another way to solve this problem is to use "setItemDelegate" method and using spinBox
as a delegate. What I don't like here is that when you click in a cell, your widget
will become visible and as soon as cell lost it's focus, delegate widgets become invisible.

Is there a any way I keep the the widget visible all the time and delegate technique?

Quote:

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Originally Posted by prashant

This works fine. How ever when I change the value of spinBox, none of the signals
(cell*.* or item*.*) of QTableWidget is emitting.

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That's because those widgets are not related to the model in any way.

Quote:

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Another way to solve this problem is to use "setItemDelegate" method and using spinBox
as a delegate. What I don't like here is that when you click in a cell, your widget
will become visible and as soon as cell lost it's focus, delegate widgets become invisible.

Is there a any way I keep the the widget visible all the time and delegate technique?

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You can render the looks of spinbox into the cell using QStyle API.