有没有人在 pyqt 5 中实现了一种将选定项目从一个列表视图框移动到另一个列表视图框的方法？

Question

我正在尝试在 PyQt 5- python 中实现类似下图的功能，我不一定要寻找 up/down 按钮，但是使用 OK 按钮获取列表所选项目。我没有看到为 pyqt5 实现任何类似的例子，我想知道是否有人有一些方向？

Answer 1

在一个中我详细介绍了响应和C++的实现，现在我只将它翻译成PyQt:

from PyQt5 import QtCore, QtWidgets

class TwoListSelection(QtWidgets.QWidget):
    def __init__(self, parent=None):
        super(TwoListSelection, self).__init__(parent)
        self.setup_layout()

    def setup_layout(self):
        lay = QtWidgets.QHBoxLayout(self)
        self.mInput = QtWidgets.QListWidget()
        self.mOuput = QtWidgets.QListWidget()

        self.mButtonToSelected = QtWidgets.QPushButton(">>")
        self.mBtnMoveToAvailable= QtWidgets.QPushButton(">")
        self.mBtnMoveToSelected= QtWidgets.QPushButton("<")
        self.mButtonToAvailable = QtWidgets.QPushButton("<<")

        vlay = QtWidgets.QVBoxLayout()
        vlay.addStretch()
        vlay.addWidget(self.mButtonToSelected)
        vlay.addWidget(self.mBtnMoveToAvailable)
        vlay.addWidget(self.mBtnMoveToSelected)
        vlay.addWidget(self.mButtonToAvailable)
        vlay.addStretch()

        self.mBtnUp = QtWidgets.QPushButton("Up")
        self.mBtnDown = QtWidgets.QPushButton("Down")

        vlay2 = QtWidgets.QVBoxLayout()
        vlay2.addStretch()
        vlay2.addWidget(self.mBtnUp)
        vlay2.addWidget(self.mBtnDown)
        vlay2.addStretch()

        lay.addWidget(self.mInput)
        lay.addLayout(vlay)
        lay.addWidget(self.mOuput)
        lay.addLayout(vlay2)

        self.update_buttons_status()
        self.connections()

    @QtCore.pyqtSlot()
    def update_buttons_status(self):
        self.mBtnUp.setDisabled(not bool(self.mOuput.selectedItems()) or self.mOuput.currentRow() == 0)
        self.mBtnDown.setDisabled(not bool(self.mOuput.selectedItems()) or self.mOuput.currentRow() == (self.mOuput.count() -1))
        self.mBtnMoveToAvailable.setDisabled(not bool(self.mInput.selectedItems()) or self.mOuput.currentRow() == 0)
        self.mBtnMoveToSelected.setDisabled(not bool(self.mOuput.selectedItems()))

    def connections(self):
        self.mInput.itemSelectionChanged.connect(self.update_buttons_status)
        self.mOuput.itemSelectionChanged.connect(self.update_buttons_status)
        self.mBtnMoveToAvailable.clicked.connect(self.on_mBtnMoveToAvailable_clicked)
        self.mBtnMoveToSelected.clicked.connect(self.on_mBtnMoveToSelected_clicked)
        self.mButtonToAvailable.clicked.connect(self.on_mButtonToAvailable_clicked)
        self.mButtonToSelected.clicked.connect(self.on_mButtonToSelected_clicked)
        self.mBtnUp.clicked.connect(self.on_mBtnUp_clicked)
        self.mBtnDown.clicked.connect(self.on_mBtnDown_clicked)

    @QtCore.pyqtSlot()
    def on_mBtnMoveToAvailable_clicked(self):
        self.mOuput.addItem(self.mInput.takeItem(self.mInput.currentRow()))

    @QtCore.pyqtSlot()
    def on_mBtnMoveToSelected_clicked(self):
        self.mInput.addItem(self.mOuput.takeItem(self.mOuput.currentRow()))

    @QtCore.pyqtSlot()
    def on_mButtonToAvailable_clicked(self):
        while self.mOuput.count() > 0:
            self.mInput.addItem(self.mOuput.takeItem(0))

    @QtCore.pyqtSlot()
    def on_mButtonToSelected_clicked(self):
        while self.mInput.count() > 0:
            self.mOuput.addItem(self.mInput.takeItem(0))        

    @QtCore.pyqtSlot()
    def on_mBtnUp_clicked(self):
        row = self.mOuput.currentRow()
        currentItem = self.mOuput.takeItem(row)
        self.mOuput.insertItem(row - 1, currentItem)
        self.mOuput.setCurrentRow(row - 1)

    @QtCore.pyqtSlot()
    def on_mBtnDown_clicked(self):
        row = self.mOuput.currentRow()
        currentItem = self.mOuput.takeItem(row)
        self.mOuput.insertItem(row + 1, currentItem)
        self.mOuput.setCurrentRow(row + 1)

    def addAvailableItems(self, items):
        self.mInput.addItems(items)

    def get_left_elements(self):
        r = []
        for i in range(self.mInput.count()):
            it = self.mInput.item(i)
            r.append(it.text())
        return r

    def get_right_elements(self):
        r = []
        for i in range(self.mOuput.count()):
            it = self.mOuput.item(i)
            r.append(it.text())
        return r
if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication.instance()
    if app is None:
        app = QtWidgets.QApplication(sys.argv)
    list_selection = TwoListSelection()
    list_selection.addAvailableItems(["item-{}".format(i) for i in range(5)])
    def on_clicked_left():
        print(list_selection.get_left_elements())
    def on_clicked_right():
        print(list_selection.get_right_elements())
    l_button = QtWidgets.QPushButton(
        text="print left elements",
        clicked=on_clicked_left
    )
    r_button = QtWidgets.QPushButton(
        text="print right elements",
        clicked=on_clicked_right
    )
    w = QtWidgets.QWidget()
    lay = QtWidgets.QVBoxLayout(w)
    hlay = QtWidgets.QHBoxLayout()
    hlay.addWidget(l_button)
    hlay.addWidget(r_button)
    lay.addLayout(hlay)
    lay.addWidget(list_selection)
    w.show()
    sys.exit(app.exec_())

有没有人在 pyqt 5 中实现了一种将选定项目从一个列表视图框移动到另一个列表视图框的方法？

Has anyone implemented a way to move selected items from one list view box to another in pyqt 5?

python

listview

multi-select

pyqt5