Re: Issues with QMimeData.text()
Vincent Vande Vyvre <[email protected]> Sat, 13 Jun 2020 09:11:30 +0200
| Newsgroups | gmane.comp.python.pyqt-pykde |
|---|---|
| Message-ID | <[email protected]> |
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Le 13/06/20 à 02:39, Bryce Beagle a écrit :
> Hi,
>
> I'm trying to implement drag-and-drop behavior in my widget and I'm
> having issues with the QMimeData that is provided in the QDropEvent.
>
> When dragging text from some applications (e.g. PyCharm),
> event.mimeData().text() always returns an empty string. If I manually
> use event.mimeData().data('text/plain'), I get my text just fine,
> albeit as a bytes object.
>
> The Qt documentation for QMimeData::text() says that it "Returns a
> plain text (MIME type text/plain) representation of the data.", so I
> feel that if the 'text/plain' format is defined, this should work
> fine. For reference, dragging from PyCharm, event.mimeData().formats
> returns:
>
> ['text/plain', 'text/plain;charset=UTF-16',
> 'text/plain;charset=UTF-8', 'text/plain;charset=UTF-16BE',
> 'text/plain;charset=UTF-16LE', 'text/plain;charset=ISO-8859-1',
> 'text/plain;charset=US-ASCII', 'text/plain;charset=unicode']
>
> Here's an MCVE using PyQt 5.15.0
>
> from PyQt5.QtGui import QDragEnterEvent, QDragMoveEvent, QDropEvent
> from PyQt5.QtWidgets import QApplication, QTextEdit
>
>
> class DragTextEdit(QTextEdit):
>
> def dragEnterEvent(self, event: QDragEnterEvent):
> event.acceptProposedAction()
>
> def dragMoveEvent(self, event: QDragMoveEvent):
> event.acceptProposedAction()
>
> def dropEvent(self, event: QDropEvent):
> data = event.mimeData()
> print("data.text():", data.text()) # Empty string
> print("data.data('text/plain'):", data.data('text/plain')) #
> bytes
>
>
> app = QApplication([])
> text_edit = DragTextEdit()
> text_edit.show()
> app.exec_()
Hi,
I've changed your code:
def dropEvent(self, event: QDropEvent):
data = event.mimeData()
print("data.text():", data.text(), type(data.text()))
print("data.data('text/plain'):", str(data.data('text/plain')),
type(data.data('text/plain')))
And the result:
data.text(): Déjà-vu <class 'str'>
data.data('text/plain'): b'D\xc3\xa9j\xc3\xa0-vu' <class
'PyQt5.QtCore.QByteArray'>
On Ubuntu Mate, the text "Déjà-vu" is dragged from Pluma (old Gedit)
Vincent
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<div class="moz-cite-prefix">Le 13/06/20 à 02:39, Bryce Beagle a
écrit :<br>
</div>
<blockquote type="cite"
cite="mid:CAKKt4mZQ5rEGVQyt4z4=6U1j2OnzjmcCmjsaSwixxsi5Mh1q-g@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Hi,
<div><br>
</div>
<div>I'm trying to implement drag-and-drop behavior in my widget
and I'm having issues with the QMimeData that is provided in
the QDropEvent. </div>
<div><br>
</div>
<div>When dragging text from some applications (e.g. PyCharm),
event.mimeData().text() always returns an empty string. If I
manually use event.mimeData().data('text/plain'), I get my
text just fine, albeit as a bytes object. </div>
<div><br>
</div>
<div>The Qt documentation for QMimeData::text() says that it
"Returns a plain text (MIME type text/plain) representation of
the data.", so I feel that if the 'text/plain' format is
defined, this should work fine. For reference, dragging from
PyCharm, event.mimeData().formats returns:</div>
<div><br>
</div>
<div>['text/plain', 'text/plain;charset=UTF-16',
'text/plain;charset=UTF-8', 'text/plain;charset=UTF-16BE',
'text/plain;charset=UTF-16LE',
'text/plain;charset=ISO-8859-1',
'text/plain;charset=US-ASCII', 'text/plain;charset=unicode']<br>
</div>
<div><br>
</div>
<div>Here's an MCVE using PyQt 5.15.0</div>
<div><br>
</div>
<div><font face="monospace">from PyQt5.QtGui import
QDragEnterEvent, QDragMoveEvent, QDropEvent<br>
from PyQt5.QtWidgets import QApplication, QTextEdit<br>
<br>
<br>
class DragTextEdit(QTextEdit):<br>
<br>
def dragEnterEvent(self, event: QDragEnterEvent):<br>
event.acceptProposedAction()<br>
<br>
def dragMoveEvent(self, event: QDragMoveEvent):<br>
event.acceptProposedAction()<br>
<br>
def dropEvent(self, event: QDropEvent):<br>
data = event.mimeData()<br>
print("data.text():", data.text()) # Empty string<br>
print("data.data('text/plain'):",
data.data('text/plain')) # bytes<br>
<br>
<br>
app = QApplication([])<br>
text_edit = DragTextEdit()<br>
text_edit.show()<br>
app.exec_()</font><br>
</div>
</div>
</blockquote>
<p>Hi,</p>
<p>I've changed your code: <br>
</p>
<p> def dropEvent(self, event: QDropEvent):<br>
data = event.mimeData()<br>
print("data.text():", data.text(), type(data.text()))<br>
print("data.data('text/plain'):",
str(data.data('text/plain')),<br>
type(data.data('text/plain')))<br>
</p>
<p>And the result:</p>
data.text(): Déjà-vu <class 'str'><br>
data.data('text/plain'): b'D\xc3\xa9j\xc3\xa0-vu' <class
'PyQt5.QtCore.QByteArray'><br>
<p>On Ubuntu Mate, the text "Déjà-vu" is dragged from Pluma (old
Gedit)</p>
<p>Vincent<br>
</p>
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