How to copy all items from one QListWidget to another?

Sriu1

I have created a QList of QListWidget and have appended some QListWidgets.I also have a QListWidget in mainwindow ui.
I want a particular QListWidget from QList to be displayed in the ui.How can it be done?Plz suggest.

J.Hilk

@Sriu1
One does not simply copy a QListWidget!
alt text

In fact its nearly impossible, as it inherits from QObject.

But I think you actually want to do something different, could you explain it in more detail? Prefered with a code example.

Sriu1

I'm creating a playlist for video,audio,image.I have created a QList<QListWidget*> list;
and I have appended 3 QListWidgets to this.I have a QComboBox in ui when video option is selected I want to display video QListWidget.

Btw found a GOT fan here :)

jsulm

@Sriu1 said in How to copy all items from one QListWidget to another?:

want to display video QListWidget

display where?
Can you be more specific?

Sriu1

In the ui I have a QListWidget created in design mode. I want to display all the items from a particular QListWidget from the QList into the QListWidget which is created in the design mode.

jsulm

@Sriu1 Then iterate over the items of that QListWidget and for each item create a new QListWidgetItem with same values and add it to the other QListWidget...
There is even a copy constructor: http://doc.qt.io/qt-5/qlistwidgetitem.html#QListWidgetItem-3
Or http://doc.qt.io/qt-5/qlistwidgetitem.html#clone
...

J.Hilk

Additionaly to what @jsulm wrote, you might also want to look into QListView

from your describtion, its seems more reasonable to manage/store one model and simply pass that to your different QListViews.