/Python/Pyqt5 qtreewidgetitem enable drop drag

Pyqt5 qtreewidgetitem enable drop drag

import sys
from PyQt5 import QtCore, QtGui, QtWidgets

IDRole = QtCore.Qt.UserRole + 1000

class MainWindow(QtWidgets.QMainWindow):
    def __init__(self):
        super(self.__class__, self).__init__()

        self.tree = QtWidgets.QTreeWidget(columnCount=1,
            dragDropMode=QtWidgets.QAbstractItemView.DragDrop,
            dragEnabled=True)
        self.tree.hideColumn(1)

        self.tree.itemDoubleClicked.connect(self.rename)
        self.tree.itemChanged.connect(self.postRename)

        # add treewidgetitems
        data=[['Folder 1', '1'],
              ['Folder 2', '2'],
              ['Folder 3', '3']
              ]
        for d in data:
            text, itemid = d
            item = QtWidgets.QTreeWidgetItem([text])
            item.setData(0, IDRole, itemid)
            self.tree.addTopLevelItem(item)

        frame = QtWidgets.QWidget()
        self.setCentralWidget(frame)
        hl = QtWidgets.QVBoxLayout(frame)
        hl.addWidget(self.tree)

    @QtCore.pyqtSlot()
    def rename(self):
        item=self.tree.selectedItems()
        if item:
            item=item[0]
            item.setFlags(item.flags() | Qt.ItemIsEditable)
            self.tree.scrollToItem(item)
            self.tree.editItem(item)

    @QtCore.pyqtSlot(QtWidgets.QTreeWidgetItem, int)
    def postRename(self, item, column):
        print('postRename: column counts', item.columnCount())
        text = item.text(0)
        itemid = item.data(0, IDRole)
        print('postRename: item text=',text, 'item id', itemid)

if __name__ == "__main__":
     app = QtWidgets.QApplication(sys.argv)
     form = MainWindow()
     form.show()
     sys.exit(app.exec_())

Source: stackoverflow.com

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