def mouseMoveEvent(self, event):
if (self._clickPos is None
or (event.pos() - self._clickPos).manhattanLength() <
QApplication.startDragDistance()):
return
# _log.debug("Drag move")
# render before detachment otherwise it might look ugly
pixmap = QPixmap(self.size())
self.render(pixmap)
self.setVisible(False)
if len(self._dock.parentContainer.flatDockList) == 1:
self._dock.parentContainer.setVisible(False)
# Build drag object
event.accept()
drag = QDrag(self)
mimeData = QMimeData()
encodedData = QByteArray(pickle.dumps(self._dock.uid))
mimeData.setData(MIME_TYPE, encodedData)
drag.setMimeData(mimeData)
drag.setPixmap(pixmap)
action = drag.exec_(Qt.MoveAction)
_log.debug("After drag. Action: {}".format(action))
if Qt.IgnoreAction == action:
_log.debug("D'n'D canceled")
self.setVisible(True)
self._dock.parentContainer.setVisible(True)
def mouseMoveEvent(self, event):
from qtpy.QtCore import QMimeData, QByteArray
from qtpy.QtGui import QPixmap, QDrag
if not (event.button() != Qt.LeftButton
and isinstance(self.dragLabel, QLabel)):
return
if (event.pos() - self.dragStartPosition
).manhattanLength() < QApplication.startDragDistance():
return
axis_index = self.filters_layout.indexOf(self.dragLabel) // 2
# prepare hotSpot, mimeData and pixmap objects
mimeData = QMimeData()
mimeData.setText(self.dragLabel.text())
mimeData.setData("application/x-axis-index",
QByteArray.number(axis_index))
pixmap = QPixmap(self.dragLabel.size())
self.dragLabel.render(pixmap)
# prepare drag object
drag = QDrag(self)
drag.setMimeData(mimeData)
drag.setPixmap(pixmap)
drag.setHotSpot(event.pos() - self.dragStartPosition)
drag.exec_(Qt.MoveAction | Qt.CopyAction, Qt.CopyAction)
def drag_with_pixmap(list_widget: QListWidget) -> QDrag:
"""Create a QDrag object with a pixmap of the currently select list item.
This method is useful when you have a QListWidget that displays custom
widgets for each QListWidgetItem instance in the list (usually by calling
``QListWidget.setItemWidget(item, widget)``). When used in a
``QListWidget.startDrag`` method, this function creates a QDrag object that
shows an image of the item being dragged (rather than an empty rectangle).
Parameters
----------
list_widget : QListWidget
The QListWidget for which to create a QDrag object.
Returns
-------
QDrag
A QDrag instance with a pixmap of the currently selected item.
Examples
--------
>>> class QListWidget:
... def startDrag(self, supportedActions):
... drag = drag_with_pixmap(self)
... drag.exec_(supportedActions, Qt.MoveAction)
"""
drag = QDrag(list_widget)
drag.setMimeData(list_widget.mimeData(list_widget.selectedItems()))
size = list_widget.viewport().visibleRegion().boundingRect().size()
pixmap = QPixmap(size)
pixmap.fill(Qt.transparent)
painter = QPainter(pixmap)
for index in list_widget.selectedIndexes():
rect = list_widget.visualRect(index)
painter.drawPixmap(rect, list_widget.viewport().grab(rect))
painter.end()
drag.setPixmap(pixmap)
drag.setHotSpot(list_widget.viewport().mapFromGlobal(QCursor.pos()))
return drag
