python - 获取 QListWidget 中选中复选框的索引

Question

我需要获取选中复选框的索引。我不知道如何为复选框和列表项添加索引(实际上我需要获取所选复选框的列表项)。我认为之后可能可以获得复选框的索引。

这是我的代码:

from PyQt4 import QtGui, QtCore
from PyQt4.Qt import SIGNAL, SLOT, QMainWindow, qApp, QUrl, QImage,\
QStringListModel
from PyQt4.QtCore import Qt
import sys
import os

class ThumbListWidget(QtGui.QListWidget):

    def __init__(self, type, parent=None):
        super(ThumbListWidget, self).__init__(parent)
        self.setIconSize(QtCore.QSize(124, 124))
        self.setSelectionMode(QtGui.QAbstractItemView.ExtendedSelection)
        self.setAcceptDrops(True)
        self.setSelectionRectVisible(True)

    def keyPressEvent(self, event):

        if event.key() == Qt.Key_Space:
            if self.selectedItems():
                new_state = Qt.Unchecked if self.selectedItems()[0].checkState() else Qt.Checked
                for item in self.selectedItems():
                    if item.flags() & Qt.ItemIsUserCheckable:
                        item.setCheckState(new_state)

            self.viewport().update()

        elif event.key() == Qt.Key_Delete:
            for item in self.selectedItems():
                self.takeItem(self.row(item))

    def iterAllItems(self):
        for i in range(self.count()):
            yield self.item(i)

class Dialog(QtGui.QMainWindow):

    def __init__(self):
        super(QtGui.QMainWindow, self).__init__()
        self.listItems = {}

        myQWidget = QtGui.QWidget()
        myBoxLayout = QtGui.QVBoxLayout()
        myQWidget.setLayout(myBoxLayout)
        self.setCentralWidget(myQWidget)

        self.listWidgetA = ThumbListWidget(self)
        for i in range(5):
            QtGui.QListWidgetItem('Item ' + str(i + 1), self.listWidgetA)

        for item in self.listWidgetA.iterAllItems():
            item.setFlags(item.flags() | Qt.ItemIsUserCheckable)
            item.setCheckState(Qt.UnChecked)

        myBoxLayout.addWidget(self.listWidgetA)
        self.listWidgetA.setAcceptDrops(False)
        self.listWidgetA.viewport().update()

if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    dialog = Dialog()
    dialog.show()
    dialog.resize(400, 140)
    sys.exit(app.exec_())

Answer 1

您的示例代码似乎已经有了大部分答案:

class ThumbListWidget(QtGui.QListWidget):
    ...

    def checkedItems(self):
        for index in range(self.count()):
            item = self.item(index)
            if item.checkState() == Qt.Checked:
                yield index, item

或者你可以只返回项目，然后像这样获取索引:

    index = listWidget.row(item)