[Qt-interest] How to use QDataWidgetMapper?

[Arthur Pemberton]

I am trying the QDataWidgetMapper and I just can't figure out hot to
use it for anything more complex than the fairly trivial examples I
have seen.

I have a QListView attached to my model. And the mapper attached to
the model. I also have several QLineEdits which are mapped to the
QDataWidgetMapper.

I have run into two problems.

When in AutoSubmit mode, I can't set a QLineEdit text programmatically
via setText(). However, Ideally, I want to use ManualSubmit, which
allows me to do setText(), but then it doesn't remember changes when I
go to the next item. I want it to remember all changes, and revert
them if I hit cancel, or keep them if I click Okay.

I tried doing a deep copy on the model itself, but that didn't seem to
work. And I couldn't find a clone() function.

I've attached a screenshot  of the dialog that I am working with.

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