[Kde-pim] QComboBox/ItemDelegate question

[Stephen Kelly]

Tobias Koenig wrote:

> Hej,
> 
> I currently try to improve the 'display name' handling in KAddressBook
> by using a QComboBox instead of a QLineEdit to allow the user to select
> different types of the display name (e.g. normal, reverse, reverse with
> comma).
> 
> So if the user has typed in 'Tobias Koenig Jr.' in the name edit, the
> display name combo box will contain the following entries (when opening
> the popup menu):
> 
>   | Tobias Koenig     |
>   | Tobias Koenig Jr. |
>   | Koenig, Tobias    |
>   | Koenig Tobias     |
>   |                   |
>   | Tobias Koenig     |
> 
> Now you might ask what is the difference between the first and the last
> entry and why is the last but one entry empty? To clarify that, I'd like
> to add descriptions in grey and italic font, so it would look like the
> following:
> 
>   | Tobias Koenig      [Short Name]         |
>   | Tobias Koenig Jr.  [Full Name]          |
>   | Koenig, Tobias     [Reverse with Comma] |
>   | Koenig Tobias      [Reverse Name]       |
>   |                    [Organization]       |
>   | Tobias Koenig      [Custom Name]        |
> 
> Adding the additional text in the proper format is no problem by applying
> an ItemDelegate to the QComboBox::view(), however though I reimplemented
> the QAbstractItemDelegate::sizeHint() method to return a fitting width,
> the popup menu is still too small, so half of the descriptions are cut
> away. It seems the width of the popup is aligned to the width of the
> combobox itself.
> 
> Does one of you know a trick how the popup menu can be enforced to a given
> width?

Have you considered putting the data into a multi column list or table like 
a QStandardItemModel and putting that model into the combobox? You should be 
able to put the description in the second column. I do something similar in 
kjots/kjotslinkdialog.cpp. I also create a view there to hide the extra 
column, but that shouldn't be necessary for you.

    tree = new QTreeView();
    tree->setModel(proxyModel);
    tree->expandAll();
    tree->setColumnHidden(1, true);
    hrefCombo->setModel(proxyModel);
    hrefCombo->setView(tree);

I didn't try it for your case, but it might work or give you a better idea.

Steve.

> 
> Ciao,
> Tobias



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