sheetview.py 文件源码

def keyPressEvent(self, event):
        if True:# not event.isAccepted():
            if event.key() == Qt.Key_Delete:
                event.accept()
                # Delete selection except for init and loop
                nodes = [x for x in self.scene.items() if isinstance(x, Node)]
                for node in nodes:
                    if node.isSelected() and not node == self.initnode and not node == self.loopnode:
                        node.delete()
                        self.scene.removeItem(node)
                        found = True