def mouseMoveEvent(self, event):
if QLineF(event.screenPos(),
event.buttonDownScreenPos(Qt.LeftButton)).length() < QApplication.startDragDistance():
return
drag = QDrag(event.widget())
mime = QMimeData()
drag.setMimeData(mime)
mime.setText("ExpressionBasedForce")
pixmap = QPixmap(int(self.boundingRect().width()),
int(self.boundingRect().height()))
pixmap.fill(Qt.white)
painter = QPainter(pixmap)
painter.setRenderHint(QPainter.Antialiasing)
self.paint(painter, QStyleOptionGraphicsItem(), event.widget())
painter.end()
pixmap.setMask(pixmap.createHeuristicMask())
drag.setPixmap(pixmap)
drag.setHotSpot(QPoint(int(self.boundingRect().width()/2.0), int(self.boundingRect().height()/2.0)))
drag.exec_()
self.setCursor(Qt.OpenHandCursor)
def mouseMoveEvent(self, event):
if QLineF(event.screenPos(),
event.buttonDownScreenPos(Qt.LeftButton)).length() < QApplication.startDragDistance():
return
print "AtomItem::mouseMoveEvent"
drag = QDrag(event.widget())
mime = QMimeData()
# A weak solution that could not be implemented in
# C++
mime.atom = self.atom
mime.atom_item = self
drag.setMimeData(mime)
mime.setText("Atom")
pixmap = QPixmap(int(self.boundingRect().width()),
int(self.boundingRect().height()))
pixmap.fill(Qt.white)
painter = QPainter(pixmap)
painter.setRenderHint(QPainter.Antialiasing)
self.paint(painter, QStyleOptionGraphicsItem(), event.widget())
painter.end()
pixmap.setMask(pixmap.createHeuristicMask())
drag.setPixmap(pixmap)
drag.setHotSpot(QPoint(int(self.boundingRect().width()/2.0), int(self.boundingRect().height()/2.0)))
drag.exec_()
self.setCursor(Qt.OpenHandCursor)
