[Qt-interest] QLabel buddy and Custom Widget.

[NaGeL]

Yes! Thank you!

All i had to do is set the Custom Widget's FocusPolicy to Qt::StrongFocus,
and with with and tell the widget with FocusProxy withch child widget to
handle it.. in my case the QtextEdit.

Thank you again!

2011/5/3 Bo Thorsen <bo at fioniasoftware.dk>

> Hi,
>
> The real work happens here:
>
> bool QLabel::event(QEvent *e)
> {
>    Q_D(QLabel);
>    QEvent::Type type = e->type();
>
> #ifndef QT_NO_SHORTCUT
>    if (type == QEvent::Shortcut) {
>        QShortcutEvent *se = static_cast<QShortcutEvent *>(e);
>        if (se->shortcutId() == d->shortcutId) {
>            QWidget * w = d->buddy;
>            QAbstractButton *button = qobject_cast<QAbstractButton *>(w);
>            if (w->focusPolicy() != Qt::NoFocus)
>                w->setFocus(Qt::ShortcutFocusReason);
>            if (button && !se->isAmbiguous())
>                button->animateClick();
>            else
>                window()->setAttribute(Qt::WA_KeyboardFocusChange);
>            return true;
>        }
>
> You found the buddy attribute there, so you were almost there. You just had
> to run a search to find out what happens. "Happens" is usually in an event
> handler (mouse, change, etc.).
>
> If they wanted to, they could have implemented the mouse handlers as well,
> so mouseclicks would activate the buddy as well, but they have chosen not to
> do this.
>
> But I hope you have what you need now.
>
> Bo.
>
> Den 02-05-2011 18:33, NaGeL skrev:
>
>> I did. And i said i looked at the headers files, and now too.
>>
>> this is QLabel's  setbuddy function:
>>
>> void QLabel::setBuddy(QWidget *buddy)
>> {
>>     Q_D(QLabel);
>>     d->buddy = buddy;
>>     if (d->isTextLabel) {
>>         if (d->shortcutId)
>>             releaseShortcut(d->shortcutId);
>>         d->shortcutId = 0;
>>         d->textDirty = true;
>>         if (buddy)
>>             d->updateShortcut(); // grab new shortcut
>>         d->updateLabel();
>>     }
>> }
>>
>> what i understand from it is: its sets its buddy, and refreshes it
>> shourtcuts, the shortcut that will give focus to the widget.
>>
>> but this is what I'm asking.... how can i redirect the focus of the
>> shortcut to  my Widget's QTextEdit?
>>
>> I figured its Q_PROPERTY thing like it was with the mapping question I
>> had... setFocus, setFocusProxy.. doesn't really works...
>>
>> 2011/5/2 Bo Thorsen <bo at fioniasoftware.dk <mailto:bo at fioniasoftware.dk>>
>>
>>
>>    Den 01-05-2011 18:01, NaGeL skrev:
>>
>>        Hello its the newb again.
>>
>>        And now i would like to ask. How does QLAbel's buddy function
>> works?
>>        And how can I get it to work with my Custom Widget?
>>
>>        My Widget Contains several tool button and a QTextEdit.
>>        I want to set QLabel's buddy the QTextEit, that is inside my
>>        Custom Widget.
>>
>>        is this too a Q_Property stuff? if yes how? i looked into the
>>          QLabel's
>>        header and QTextEdits header files but i failed to find any
>>        indication...
>>
>>
>>    I don't know this, but I know how I would find out: Read the Qt
>>    sourcecode. This is a perfect case of a problem that most likely
>>    will take you no longer than maximum 10 minutes to figure out by
>>    looking at the QLabel sources.
>>
>>    I'm not trying to be clever here. This is a tool I use very often,
>>    and I think it's important to keep reminding people that it's
>> available.
>>
>>    Bo Thorsen,
>>    Fionia Software.
>>
>>    --
>>
>>    Expert Qt and C++ developer for hire
>>    Contact me if you need expert Qt help
>>    http://www.fioniasoftware.dk
>>
>>
>>
>
> Bo Thorsen,
> Fionia Software.
>
> --
>
> Expert Qt and C++ developer for hire
> Contact me if you need expert Qt help
> http://www.fioniasoftware.dk
>
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