QListWidget四种选择模式

image.png

• 连续选择， 快捷键Shift
• 扩展选择，可以Shift，也可以ctrl,最常用
• 多选，一个一个添加，再次点击也可以去除之前添加的
• 不选择

使用的

        self.list_wdg = QtWidgets.QListWidget()

        # 连续选择， 快捷键Shift
        self.list_wdg.setSelectionMode(QtWidgets.QAbstractItemView.ContiguousSelection)

        # 扩展选择，可以Shift，也可以ctrl,最常用
        self.list_wdg.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)

        # 多选，一个一个添加，再次点击也可以去除之前添加的
        self.list_wdg.setSelectionMode(QtWidgets.QAbstractItemView.MultiSelection)'''

        # 不选择
        self.list_wdg.setSelectionMode(QtWidgets.QAbstractItemView.NoSelection)

槽函数

• .selectedItems()

    def print_selected_item(self):
        '''

        :return:
        '''

        items = self.list_wdg.selectedItems()

        selected_item_labels = []
        for item in items:
            selected_item_labels.append(item.text())
        print 'Selected Items: {0}'.format(selected_item_labels)

完整代码

from PySide2 import QtCore, QtWidgets
from shiboken2 import wrapInstance

import maya.OpenMayaUI as omui

def get_maya_main_window():
    '''
    Maya main window widget as a pyside2 python object
    :return:
    '''
    maya_main_wnd = omui.MQtUtil.mainWindow()
    return wrapInstance(long(maya_main_wnd), QtWidgets.QWidget)

class MultiSelectDialog(QtWidgets.QDialog):

    WIDGET_ITEMS = ['Item_00', 'Item_01', 'Item_02', 'Item_03']

    def __init__(self, parent=get_maya_main_window()):
        super(MultiSelectDialog, self).__init__(parent)

        self.setWindowTitle('MultiSelect Dialog UI')
        self.setMinimumWidth(200)
        self.setWindowFlags(self.windowFlags())

        self.create_widgets()
        self.create_layouts()
        self.create_connections()
        QtCore.QMetaObject.connectSlotsByName(self)

    def create_widgets(self):
        '''

        :return:
        '''
        self.list_wdg = QtWidgets.QListWidget()

        # 连续选择， 快捷键Shift
        # self.list_wdg.setSelectionMode(QtWidgets.QAbstractItemView.ContiguousSelection)

        # 扩展选择，可以Shift，也可以ctrl,最常用
        self.list_wdg.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)

        # 多选，一个一个添加，再次点击也可以去除之前添加的
        # self.list_wdg.setSelectionMode(QtWidgets.QAbstractItemView.MultiSelection)

        # 不选择
        # self.list_wdg.setSelectionMode(QtWidgets.QAbstractItemView.NoSelection)

        for wdg_item in self.WIDGET_ITEMS:
            list_wdg_item = QtWidgets.QListWidgetItem(wdg_item)
            self.list_wdg.addItem(list_wdg_item)

        self.close_btn = QtWidgets.QPushButton("Close")

    def create_layouts(self):

        btn_layout = QtWidgets.QHBoxLayout()
        btn_layout.addStretch()
        btn_layout.addWidget(self.close_btn)

        main_layout = QtWidgets.QVBoxLayout(self)
        main_layout.setContentsMargins(2, 2, 2, 2)
        main_layout.setSpacing(2)
        main_layout.addWidget(self.list_wdg)
        main_layout.addStretch()
        main_layout.addLayout(btn_layout)

    def create_connections(self):

        self.list_wdg.itemSelectionChanged.connect(self.print_selected_item)

        self.close_btn.clicked.connect(self.close)

    # ___Slots___
    def print_selected_item(self):
        '''

        :return:
        '''

        items = self.list_wdg.selectedItems()

        selected_item_labels = []
        for item in items:
            selected_item_labels.append(item.text())
        print 'Selected Items: {0}'.format(selected_item_labels)

if __name__ == '__main__':

    try:
        myTest_ui.close()  # pylint:disable = E0601
        myTest_ui.deleteLater()  # pylint:disable = E0601
    except:
        pass

    myTest_ui = MultiSelectDialog()
    myTest_ui.show()