Python Qt GUI快速编程-第五章的exercise的python3+pytq5+Qt Dersinger实现

**本文是本人用python3+pytq5+Qt desinger实现Python Qt GUI快速编程-第五章的exercise，请大家参考。

改动的地方：

1，QStringList()用list()代替。

2，self.emit(SIGNAL(“acceptedList(QStringList)”), self.stringlist)在这里完全没必要。**

#/home/yrd/eric_workspace/StringListDlg/Ui_StringListDlg.py

# -*- coding: utf-8 -*-
from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(404, 244)
Dialog.setSizeGripEnabled(True)
self.widget = QtWidgets.QWidget(Dialog)
self.widget.setGeometry(QtCore.QRect(10, 10, 381, 222))
self.widget.setObjectName("widget")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.widget)
self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout.setObjectName("horizontalLayout")
self.listWidget = QtWidgets.QListWidget(self.widget)
self.listWidget.setObjectName("listWidget")
self.horizontalLayout.addWidget(self.listWidget)
self.verticalLayout = QtWidgets.QVBoxLayout()
self.verticalLayout.setContentsMargins(5, -1, 5, -1)
self.verticalLayout.setObjectName("verticalLayout")
self.addButton = QtWidgets.QPushButton(self.widget)
self.addButton.setObjectName("addButton")
self.verticalLayout.addWidget(self.addButton)
self.editButton = QtWidgets.QPushButton(self.widget)
self.editButton.setObjectName("editButton")
self.verticalLayout.addWidget(self.editButton)
self.removeButton = QtWidgets.QPushButton(self.widget)
self.removeButton.setObjectName("removeButton")
self.verticalLayout.addWidget(self.removeButton)
self.upButton = QtWidgets.QPushButton(self.widget)
self.upButton.setObjectName("upButton")
self.verticalLayout.addWidget(self.upButton)
self.downButton = QtWidgets.QPushButton(self.widget)
self.downButton.setObjectName("downButton")
self.verticalLayout.addWidget(self.downButton)
self.sortButton = QtWidgets.QPushButton(self.widget)
self.sortButton.setObjectName("sortButton")
self.verticalLayout.addWidget(self.sortButton)
self.closeButton = QtWidgets.QPushButton(self.widget)
self.closeButton.setObjectName("closeButton")
self.verticalLayout.addWidget(self.closeButton)
self.verticalLayout.setStretch(6, 1)
self.horizontalLayout.addLayout(self.verticalLayout)
self.horizontalLayout.setStretch(0, 1)

self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)

def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
Dialog.setWindowTitle(_translate("Dialog", "StringListDlg"))
self.addButton.setText(_translate("Dialog", "&Add..."))
self.editButton.setText(_translate("Dialog", "&Edit..."))
self.removeButton.setText(_translate("Dialog", "&Remove..."))
self.upButton.setText(_translate("Dialog", "&Up"))
self.downButton.setText(_translate("Dialog", "&Down"))
self.sortButton.setText(_translate("Dialog", "&Sort"))
self.closeButton.setText(_translate("Dialog", "Close"))

#/home/yrd/eric_workspace/StringListDlg/StringListDlg.py

# -*- coding: utf-8 -*-

"""
Module implementing StringListDlg.
"""

from PyQt5.QtCore import pyqtSlot,pyqtSignal,Qt
from PyQt5.QtWidgets import QDialog,QApplication,QInputDialog,QMessageBox,QLineEdit

from Ui_StringListDlg import Ui_Dialog
import sys

MAC = True
try:
from PyQt5.QtGui import qt_mac_set_native_menubar
except ImportError:
MAC = False

class StringListDlg(QDialog, Ui_Dialog):
"""
Class documentation goes here.
"""
def __init__(self, name, stringlist=None,parent=None):
"""
Constructor

@param parent reference to the parent widget
@type QWidget
"""
super(StringListDlg, self).__init__(parent)
self.setupUi(self)

self.name = name
if stringlist is not None:
self.listWidget.addItems(stringlist)
self.listWidget.setCurrentRow(0)

self.addButton.clicked.connect(self.add)
self.editButton.clicked.connect(self.edit)
self.removeButton.clicked.connect(self.remove)
self.upButton.clicked.connect(self.up)
self.downButton.clicked.connect(self.down)
self.sortButton.clicked.connect(self.listWidget.sortItems)
self.closeButton.clicked.connect(self.accept)
self.setWindowTitle("Edit {0} List".format(self.name))

if not MAC:
self.addButton.setFocusPolicy(Qt.NoFocus)
self.editButton.setFocusPolicy(Qt.NoFocus)
self.removeButton.setFocusPolicy(Qt.NoFocus)
self.upButton.setFocusPolicy(Qt.NoFocus)
self.downButton.setFocusPolicy(Qt.NoFocus)
self.sortButton.setFocusPolicy(Qt.NoFocus)
self.closeButton.setFocusPolicy(Qt.NoFocus)

def add(self):
row = self.listWidget.currentRow()
title = "Add {0}".format(self.name)
string, ok = QInputDialog.getText(self, title, title)
if ok and string:
self.listWidget.insertItem(row, string)

def edit(self):
row = self.listWidget.currentRow()
item = self.listWidget.item(row)
if item is not None:
title = "Edit {0}".format(self.name)
string, ok = QInputDialog.getText(self, title, title,
QLineEdit.Normal, item.text())
if ok and string:
item.setText(string)

def remove(self):
row = self.listWidget.currentRow()
item = self.listWidget.item(row)
if item is None:
return
reply = QMessageBox.question(self, "Remove {0}".format(
self.name), "Remove {0} `{1}'?".format(
self.name, str(item.text())),
QMessageBox.Yes|QMessageBox.No)
if reply == QMessageBox.Yes:
item = self.listWidget.takeItem(row)
del item

def up(self):
row = self.listWidget.currentRow()
if row >= 1:
item = self.listWidget.takeItem(row)
self.listWidget.insertItem(row - 1, item)
self.listWidget.setCurrentItem(item)

def down(self):
row = self.listWidget.currentRow()
if row < self.listWidget.count() - 1:
item = self.listWidget.takeItem(row)
self.listWidget.insertItem(row + 1, item)
self.listWidget.setCurrentItem(item)

def reject(self):
self.accept()

def accept(self):
self.stringlist = list()
for row in range(self.listWidget.count()):
self.stringlist.append(self.listWidget.item(row).text())

QDialog.accept(self)

if __name__ == "__main__":
fruit = ["Banana", "Apple", "Elderberry", "Clementine", "Fig",
"Guava", "Mango", "Honeydew Melon", "Date", "Watermelon",
"Tangerine", "Ugli Fruit", "Juniperberry", "Kiwi", "Lemon",
"Nectarine", "Plum", "Raspberry", "Strawberry", "Orange"]
app = QApplication(sys.argv)
form = StringListDlg("Fruit", fruit)
form.exec_()
print("\n".join([str(x) for x in form.stringlist]))

运行结果如下：