Am 17.12.2014 um 10:44 schrieb Till Oliver Knoll:
>
>> Am 17.12.2014 um 08:57 schrieb Wilhelm <wilhelm.me...@fh-kl.de>:
>>
>>> ...
>>>
>>> But just to rule out the usual suspects: does drag and drop "in general"
>>> work with your current Window Manager" (in applications where you /know/
>>> that certain MIME types are accepted)? E.g. when you drag and drop a file
>>> from your File Manager to your Email editor: does it get "attached" (or
>>> even embedded) (in)to your current email that you are typing?
>>
>> Yes, absolutely.
>>
>> E.g. I can drag from a foreign application (e.g. dolphin) to my programm
>> (into a derived QTextEdit to accept that drops).
>
> So just to repeat:
>
> * Drag and Drop (DnD) works when initiated from another application (e.g.
> Dolphin file manager) and dropped onto your ("drop-enabled")
> application/widget
yes
>
> * DnD works within your own application instance (process)
yes
>
> But it does not work when
>
> * DnD initiated in your application instance 1 and dropped onto your
> application instance 2
yes
>
> What exactly does not work? In instance 2, are you not getting an event at
> all? Or is it simply not "acceptable"? What happens if you try to drop onto
> another application which e.g. accepts images (email client maybe)?
I've overwritten (derived from TextEdit)
void dragEnterEvent(QDragEnterEvent *e);
void dragMoveEvent(QDragMoveEvent *e);
void dropEvent(QDropEvent *e);
and in dropEvent(QDropEvent *e) I look for the mimeData like:
if (e->mimeData()->hasText()) {
qDebug() << Q_FUNC_INFO << "text: " << e->mimeData()->text();
insertFromMimeData(e->mimeData());
}
Strange is that e->mimeData()->hasText() evaluates to true but
e->mimeData()->text() is empty (similar for hasUrls() and urls()).
>
> That is, you initiate a drag in a QLabel, place the image e.g. as "image/png"
> or "image/jpeg" (?) into the QMimeData and drop it over the email client?
> Would that work?
>
> Cheers,
> Oliver
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--
Wilhelm
w.me...@unix.net
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