本文整理匯總了Python中PyQt5.QtGui.QDrag.start方法的典型用法代碼示例。如果您正苦於以下問題：Python QDrag.start方法的具體用法？Python QDrag.start怎麽用？Python QDrag.start使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類PyQt5.QtGui.QDrag的用法示例。
在下文中一共展示了QDrag.start方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: mouseMoveEvent
# 需要導入模塊: from PyQt5.QtGui import QDrag [as 別名]
# 或者: from PyQt5.QtGui.QDrag import start [as 別名]
def mouseMoveEvent(self, event):
""" If the mouse moves far enough when the left mouse button is held
down, start a drag and drop operation.
"""
if not event.buttons() & Qt.LeftButton:
return
if (event.pos() - self.dragStartPosition).manhattanLength() \
< QApplication.startDragDistance():
return
if not self.hasImage:
return
drag = QDrag(self)
mimeData = QMimeData()
output = QByteArray()
outputBuffer = QBuffer(output)
outputBuffer.open(QIODevice.WriteOnly)
self.imageLabel.pixmap().toImage().save(outputBuffer, 'PNG')
outputBuffer.close()
mimeData.setData('image/png', output)
drag.setMimeData(mimeData)
drag.setPixmap(self.imageLabel.pixmap().scaled(64, 64, Qt.KeepAspectRatio))
drag.setHotSpot(QPoint(drag.pixmap().width() / 2,
drag.pixmap().height()))
drag.start()示例2: startDrag
# 需要導入模塊: from PyQt5.QtGui import QDrag [as 別名]
# 或者: from PyQt5.QtGui.QDrag import start [as 別名]
def startDrag(self, mainwin, ev):
d = mainwin.currentDocument()
if not d:
return
url = d.url()
if url.isEmpty():
return
drag = QDrag(mainwin)
data = QMimeData()
data.setUrls([url])
drag.setMimeData(data)
pixmap = mainwin.style().standardPixmap(QStyle.SP_FileIcon, 0, mainwin)
hotspot = QPoint(pixmap.width() - 5, 5)
drag.setPixmap(pixmap)
drag.setHotSpot(hotspot)
drag.start(Qt.LinkAction | Qt.CopyAction)