Giving user facility to resize widgets run time

[Charvi]

Ok. I tried doing the following.

For 1) I tried reimplementing the resizeEvent() of the iwdget. But for some reason my resizeEvent() is not being called. Does anybody have any idea when the resizeEvent() of any widget will be called?

For 2) I tried reimplementing the mousePressEvent and the mouseMoveEvent. In the first one I stored the position of the mouse Press and then int he second one I detected the mouse move event position and simply called the move(new_position - old_position) to move the widget. It works to some extent, the widget does move but not so smoothly there's some problem, it sometimes goes to the top left corner. It just doesn't work correctly some of the times.

Does anybody have any idea about these?

Charvi.

[wysota]

For 1) I tried reimplementing the resizeEvent() of the iwdget. But for some reason my resizeEvent() is not being called. Does anybody have any idea when the resizeEvent() of any widget will be called?

When the widget is resized.

For 2) I tried reimplementing the mousePressEvent and the mouseMoveEvent. In the first one I stored the position of the mouse Press and then int he second one I detected the mouse move event position and simply called the move(new_position - old_position) to move the widget. It works to some extent, the widget does move but not so smoothly there's some problem, it sometimes goes to the top left corner. It just doesn't work correctly some of the times.

Apparently you are not doing any checks on the data you receive.

Have you seen the [wiki]Moving widgets[/wiki] article in our wiki?

[aamer4yu]

How did you implement the resizeEvent function ?
When you are adding the widget to the scene, it becomes a graphics item. May be you will need to enable QGraphicsItem::ItemIsMovable.

[Charvi]

Have you seen the [wiki]Moving widgets[/wiki] article in our wiki?

Thanks a ton. The article helped. Now I can move my widgets without any problem.
Though one quick question. Before reading this article i was using globalPos() to find the position of the event occurrence and then was using it to move the widget. According to the documentation, mapToParent(), used in the article, does the same. Then why is it that the app works fine with the latter and not with the former?

When the widget is resized.

Ya but how should the widget be resized? I want a functionality in which the widget should be able to be resized by the user run time with the help of mouse, like we do it in Qt Designer. I don't want to do it through programming.

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Added after 4 minutes:

When you are adding the widget to the scene, it becomes a graphics item. May be you will need to enable QGraphicsItem::ItemIsMovable.

I am adding the widgets in the GraphicsView run time, by drag and drop. There is a list of widgets on one side and Qt GraphicsView on the other side. When the user drags and drops the widget name on the graphics view it is replaced by the widget instance. So the widgets are being added run time. And about the ItemIsMovable flag, I think it is true by default.