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Thread: how to sync a QTreeWidget and a QListWidget?

  1. #1
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    Question how to sync a QTreeWidget and a QListWidget?

    hi, there

    I have a qtreewidget and a qlistwidget in a form. The qtreewidget accepts drop operation. Once a item dropped on a node, I need to record the item's info and the node info on the qlistwidget. The qtreewidgetitem won't be changed on drop operation (let's just count the times of each node being dropped).

    What I need to know is: how can the qlistwidget know if something is dropped in the qtreewidget? I know how to implement the drop operation in the qtreewidget but don't know how to pass that info to qlistwidget.

    I basically follow the tutorial here http://sector.ynet.sk/qt4-tutorial/dnd.html.
    The qtreewidget promote to myqtreewidget class where the drop operation is implemented.

    Thanks for your comments.

    zl2k
    Last edited by zl2k; 3rd September 2008 at 23:28.

  2. #2
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    Default Re: how to sync a QTreeWidget and a QListWidget?

    Quote Originally Posted by zl2k View Post
    I know how to implement the drop operation in the qtreewidget but don't know how to pass that info to qlistwidget.
    You can make tree widget emit a signal and connect it to a slot in list widget. Of course that means you have to subclass both widgets.

  3. #3
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    Default Re: how to sync a QTreeWidget and a QListWidget?

    Thanks, I got it.

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