首页
所有分类
TAGS
文字工具 EMOJI BIBLE
编程 Python

python3+PyQt5+Qt Designer实现扩展对话框

Posted in Python onApril 20, 2018

本文是对《Python Qt GUI快速编程》的第9章的扩展对话框例子Find and replace用Python3+PyQt5+Qt Designer进行改写。

第一部分无借用Qt Designer，完全用代码实现。
第二部分则借用Qt Designer，快速实现。

第一部分：

import sys
from PyQt5.QtCore import Qt,pyqtSignal
from PyQt5.QtWidgets import (QApplication, QCheckBox, QDialog, QFrame,
  QGridLayout, QHBoxLayout, QLabel, QLayout, QLineEdit,
  QPushButton, QVBoxLayout)



class FindAndReplaceDlg(QDialog):
 find = pyqtSignal(str,bool,bool,bool,bool,bool)
 replace = pyqtSignal(str,str,bool,bool,bool,bool,bool)  

 def __init__(self, parent=None):
  super(FindAndReplaceDlg, self).__init__(parent)

  findLabel = QLabel("Find &what:")
  self.findLineEdit = QLineEdit()
  findLabel.setBuddy(self.findLineEdit)
  replaceLabel = QLabel("Replace w&ith:")
  self.replaceLineEdit = QLineEdit()
  replaceLabel.setBuddy(self.replaceLineEdit)
  self.caseCheckBox = QCheckBox("&Case sensitive")
  self.wholeCheckBox = QCheckBox("Wh&ole words")
  self.wholeCheckBox.setChecked(True)
  self.moreFrame = QFrame()
  self.moreFrame.setFrameStyle(QFrame.StyledPanel|QFrame.Sunken)
  self.backwardsCheckBox = QCheckBox("Search &Backwards")
  self.regexCheckBox = QCheckBox("Regular E&xpression")
  self.ignoreNotesCheckBox = QCheckBox("Ignore foot¬es "
             "and endnotes")
  line = QFrame()
  line.setFrameStyle(QFrame.VLine|QFrame.Sunken)
  self.findButton = QPushButton("&Find")
  self.replaceButton = QPushButton("&Replace")
  closeButton = QPushButton("Close")
  self.moreButton = QPushButton("&More")
  self.moreButton.setCheckable(True)


  gridLayout = QGridLayout()
  gridLayout.addWidget(findLabel, 0, 0)
  gridLayout.addWidget(self.findLineEdit, 0, 1)
  gridLayout.addWidget(replaceLabel, 1, 0)
  gridLayout.addWidget(self.replaceLineEdit, 1, 1)
  frameLayout = QVBoxLayout()
  frameLayout.addWidget(self.backwardsCheckBox)
  frameLayout.addWidget(self.regexCheckBox)
  frameLayout.addWidget(self.ignoreNotesCheckBox)
  self.moreFrame.setLayout(frameLayout)
  leftLayout = QVBoxLayout()
  leftLayout.addLayout(gridLayout)
  leftLayout.addWidget(self.caseCheckBox)
  leftLayout.addWidget(self.wholeCheckBox)
  leftLayout.addWidget(self.moreFrame)
  buttonLayout = QVBoxLayout()
  buttonLayout.addWidget(self.findButton)
  buttonLayout.addWidget(self.replaceButton)
  buttonLayout.addWidget(closeButton)
  buttonLayout.addWidget(self.moreButton)
  buttonLayout.addStretch()
  mainLayout = QHBoxLayout()
  mainLayout.addLayout(leftLayout)
  mainLayout.addWidget(line)
  mainLayout.addLayout(buttonLayout)
  self.setLayout(mainLayout)

  self.moreFrame.hide()
  mainLayout.setSizeConstraint(QLayout.SetFixedSize)

  self.moreButton.toggled[bool].connect(self.setvisible)


  self.findLineEdit.textEdited.connect(self.updateUi)
  self.findButton.clicked.connect(self.findClicked)
  self.replaceButton.clicked.connect(self.replaceClicked)

  self.updateUi()
  self.setWindowTitle("Find and Replace")

 def setvisible(self,YN):
  self.moreFrame.setVisible(YN)


 def findClicked(self):
  self.find.emit(self.findLineEdit.text(),
    self.caseCheckBox.isChecked(),
    self.wholeCheckBox.isChecked(),
    self.backwardsCheckBox.isChecked(),
    self.regexCheckBox.isChecked(),
    self.ignoreNotesCheckBox.isChecked())


 def replaceClicked(self):
  self.replace.emit(self.findLineEdit.text(),
    self.replaceLineEdit.text(),
    self.caseCheckBox.isChecked(),
    self.wholeCheckBox.isChecked(),
    self.backwardsCheckBox.isChecked(),
    self.regexCheckBox.isChecked(),
    self.ignoreNotesCheckBox.isChecked())


 def updateUi(self):
  enable = self.findLineEdit.text()
  self.findButton.setEnabled(bool(enable))
  self.replaceButton.setEnabled(bool(enable))


if __name__ == "__main__":

 def find(what, *args):
  print("Find {0} {1}".format(what, [x for x in args]))

 def replace(old, new, *args):
  print("Replace {0} with {1} {2}".format(
    old, new, [x for x in args]))

 app = QApplication(sys.argv)
 form = FindAndReplaceDlg()
 form.find.connect(find)
 form.replace.connect(replace)  
 form.show()
 app.exec_()

第二部分：

/home/yrd/eric_workspace/chap09/findandreplacedlg/Ui_findandreplacedlg.py

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

# Form implementation generated from reading ui file '/home/yrd/eric_workspace/chap09/findandreplacedlg/findandreplacedlg.ui'
#
# Created by: PyQt5 UI code generator 5.7
#
# WARNING! All changes made in this file will be lost!

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_FindAndReplaceDlg(object):
 def setupUi(self, FindAndReplaceDlg):
  FindAndReplaceDlg.setObjectName("FindAndReplaceDlg")
  FindAndReplaceDlg.resize(355, 274)
  self.mainlayout = QtWidgets.QHBoxLayout(FindAndReplaceDlg)
  self.mainlayout.setSizeConstraint(QtWidgets.QLayout.SetFixedSize)
  self.mainlayout.setContentsMargins(9, 9, 9, 9)
  self.mainlayout.setSpacing(6)
  self.mainlayout.setObjectName("mainlayout")
  self.vboxlayout = QtWidgets.QVBoxLayout()
  self.vboxlayout.setContentsMargins(0, 0, 0, 0)
  self.vboxlayout.setSpacing(6)
  self.vboxlayout.setObjectName("vboxlayout")
  self.gridlayout = QtWidgets.QGridLayout()
  self.gridlayout.setContentsMargins(0, 0, 0, 0)
  self.gridlayout.setSpacing(6)
  self.gridlayout.setObjectName("gridlayout")
  self.replaceLineEdit = QtWidgets.QLineEdit(FindAndReplaceDlg)
  self.replaceLineEdit.setObjectName("replaceLineEdit")
  self.gridlayout.addWidget(self.replaceLineEdit, 1, 1, 1, 1)
  self.findLineEdit = QtWidgets.QLineEdit(FindAndReplaceDlg)
  self.findLineEdit.setObjectName("findLineEdit")
  self.gridlayout.addWidget(self.findLineEdit, 0, 1, 1, 1)
  self.label_2 = QtWidgets.QLabel(FindAndReplaceDlg)
  self.label_2.setObjectName("label_2")
  self.gridlayout.addWidget(self.label_2, 1, 0, 1, 1)
  self.label = QtWidgets.QLabel(FindAndReplaceDlg)
  self.label.setObjectName("label")
  self.gridlayout.addWidget(self.label, 0, 0, 1, 1)
  self.vboxlayout.addLayout(self.gridlayout)
  self.vboxlayout1 = QtWidgets.QVBoxLayout()
  self.vboxlayout1.setContentsMargins(0, 0, 0, 0)
  self.vboxlayout1.setSpacing(6)
  self.vboxlayout1.setObjectName("vboxlayout1")
  self.caseCheckBox = QtWidgets.QCheckBox(FindAndReplaceDlg)
  self.caseCheckBox.setObjectName("caseCheckBox")
  self.vboxlayout1.addWidget(self.caseCheckBox)
  self.wholeCheckBox = QtWidgets.QCheckBox(FindAndReplaceDlg)
  self.wholeCheckBox.setChecked(True)
  self.wholeCheckBox.setObjectName("wholeCheckBox")
  self.vboxlayout1.addWidget(self.wholeCheckBox)
  self.vboxlayout.addLayout(self.vboxlayout1)
  spacerItem = QtWidgets.QSpacerItem(231, 16, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
  self.vboxlayout.addItem(spacerItem)
  self.moreFrame = QtWidgets.QFrame(FindAndReplaceDlg)
  self.moreFrame.setFrameShape(QtWidgets.QFrame.StyledPanel)
  self.moreFrame.setFrameShadow(QtWidgets.QFrame.Raised)
  self.moreFrame.setObjectName("moreFrame")
  self.vboxlayout2 = QtWidgets.QVBoxLayout(self.moreFrame)
  self.vboxlayout2.setContentsMargins(9, 9, 9, 9)
  self.vboxlayout2.setSpacing(6)
  self.vboxlayout2.setObjectName("vboxlayout2")
  self.backwardsCheckBox = QtWidgets.QCheckBox(self.moreFrame)
  self.backwardsCheckBox.setObjectName("backwardsCheckBox")
  self.vboxlayout2.addWidget(self.backwardsCheckBox)
  self.regexCheckBox = QtWidgets.QCheckBox(self.moreFrame)
  self.regexCheckBox.setObjectName("regexCheckBox")
  self.vboxlayout2.addWidget(self.regexCheckBox)
  self.ignoreNotesCheckBox = QtWidgets.QCheckBox(self.moreFrame)
  self.ignoreNotesCheckBox.setObjectName("ignoreNotesCheckBox")
  self.vboxlayout2.addWidget(self.ignoreNotesCheckBox)
  self.vboxlayout.addWidget(self.moreFrame)
  self.mainlayout.addLayout(self.vboxlayout)
  self.line = QtWidgets.QFrame(FindAndReplaceDlg)
  self.line.setFrameShape(QtWidgets.QFrame.VLine)
  self.line.setFrameShadow(QtWidgets.QFrame.Sunken)
  self.line.setObjectName("line")
  self.mainlayout.addWidget(self.line)
  self.vboxlayout3 = QtWidgets.QVBoxLayout()
  self.vboxlayout3.setContentsMargins(0, 0, 0, 0)
  self.vboxlayout3.setSpacing(6)
  self.vboxlayout3.setObjectName("vboxlayout3")
  self.findButton = QtWidgets.QPushButton(FindAndReplaceDlg)
  self.findButton.setFocusPolicy(QtCore.Qt.NoFocus)
  self.findButton.setObjectName("findButton")
  self.vboxlayout3.addWidget(self.findButton)
  self.replaceButton = QtWidgets.QPushButton(FindAndReplaceDlg)
  self.replaceButton.setFocusPolicy(QtCore.Qt.NoFocus)
  self.replaceButton.setObjectName("replaceButton")
  self.vboxlayout3.addWidget(self.replaceButton)
  self.closeButton = QtWidgets.QPushButton(FindAndReplaceDlg)
  self.closeButton.setFocusPolicy(QtCore.Qt.NoFocus)
  self.closeButton.setObjectName("closeButton")
  self.vboxlayout3.addWidget(self.closeButton)
  self.moreButton = QtWidgets.QPushButton(FindAndReplaceDlg)
  self.moreButton.setFocusPolicy(QtCore.Qt.NoFocus)
  self.moreButton.setCheckable(True)
  self.moreButton.setObjectName("moreButton")
  self.vboxlayout3.addWidget(self.moreButton)
  spacerItem1 = QtWidgets.QSpacerItem(21, 16, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
  self.vboxlayout3.addItem(spacerItem1)
  self.mainlayout.addLayout(self.vboxlayout3)
  self.label_2.setBuddy(self.replaceLineEdit)
  self.label.setBuddy(self.findLineEdit)

  self.retranslateUi(FindAndReplaceDlg)
  self.closeButton.clicked.connect(FindAndReplaceDlg.reject)
  self.moreButton.toggled['bool'].connect(self.moreFrame.setVisible)
  QtCore.QMetaObject.connectSlotsByName(FindAndReplaceDlg)
  FindAndReplaceDlg.setTabOrder(self.findLineEdit, self.replaceLineEdit)
  FindAndReplaceDlg.setTabOrder(self.replaceLineEdit, self.caseCheckBox)
  FindAndReplaceDlg.setTabOrder(self.caseCheckBox, self.wholeCheckBox)
  FindAndReplaceDlg.setTabOrder(self.wholeCheckBox, self.backwardsCheckBox)
  FindAndReplaceDlg.setTabOrder(self.backwardsCheckBox, self.regexCheckBox)
  FindAndReplaceDlg.setTabOrder(self.regexCheckBox, self.ignoreNotesCheckBox)

 def retranslateUi(self, FindAndReplaceDlg):
  _translate = QtCore.QCoreApplication.translate
  FindAndReplaceDlg.setWindowTitle(_translate("FindAndReplaceDlg", "Find and Replace"))
  self.label_2.setText(_translate("FindAndReplaceDlg", "Replace w&ith:"))
  self.label.setText(_translate("FindAndReplaceDlg", "Find &what:"))
  self.caseCheckBox.setText(_translate("FindAndReplaceDlg", "&Case sensitive"))
  self.wholeCheckBox.setText(_translate("FindAndReplaceDlg", "Wh&ole words"))
  self.backwardsCheckBox.setText(_translate("FindAndReplaceDlg", "Search &Backwards"))
  self.regexCheckBox.setText(_translate("FindAndReplaceDlg", "Regular E&xpression"))
  self.ignoreNotesCheckBox.setText(_translate("FindAndReplaceDlg", "Ignore foot¬es and endnotes"))
  self.findButton.setText(_translate("FindAndReplaceDlg", "&Find"))
  self.replaceButton.setText(_translate("FindAndReplaceDlg", "&Replace"))
  self.closeButton.setText(_translate("FindAndReplaceDlg", "Close"))
  self.moreButton.setText(_translate("FindAndReplaceDlg", "&More"))

/home/yrd/eric_workspace/chap09/findandreplacedlg/findandreplacedlg.py

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

"""
Module implementing FindAndReplaceDlg.
"""

from PyQt5.QtCore import pyqtSlot,pyqtSignal
from PyQt5.QtWidgets import QDialog,QApplication

from Ui_findandreplacedlg import Ui_FindAndReplaceDlg


class FindAndReplaceDlg(QDialog, Ui_FindAndReplaceDlg):
 """
 Class documentation goes here.
 """
 find = pyqtSignal(str,bool,bool,bool,bool,bool)
 replace = pyqtSignal(str,str,bool,bool,bool,bool,bool)  
 def __init__(self, parent=None):
  """
  Constructor

  @param parent reference to the parent widget
  @type QWidget
  """
  super(FindAndReplaceDlg, self).__init__(parent)
  self.setupUi(self)
  self.moreFrame.hide()
  #self.layout().setSizeConstraint(QLayout.SetFixedSize)
  self.updateUi()  

 @pyqtSlot(str)
 def on_findLineEdit_textEdited(self, text):
  """
  Slot documentation goes here.

  @param p0 DESCRIPTION
  @type str
  """
  # TODO: not implemented yet
  self.updateUi()

 @pyqtSlot()
 def on_findButton_clicked(self):
  self.find.emit(self.findLineEdit.text(),
      self.caseCheckBox.isChecked(),
      self.wholeCheckBox.isChecked(),
      self.backwardsCheckBox.isChecked(),
      self.regexCheckBox.isChecked(),
      self.ignoreNotesCheckBox.isChecked())  


 @pyqtSlot()
 def on_replaceButton_clicked(self):
  self.replace.emit(self.findLineEdit.text(),
       self.replaceLineEdit.text(),
       self.caseCheckBox.isChecked(),
       self.wholeCheckBox.isChecked(),
       self.backwardsCheckBox.isChecked(),
       self.regexCheckBox.isChecked(),
       self.ignoreNotesCheckBox.isChecked())

 def updateUi(self):
  enable = self.findLineEdit.text()
  self.findButton.setEnabled(bool(enable))
  self.replaceButton.setEnabled(bool(enable))

if __name__ == "__main__":
 import sys

 def find(what, *args):
  print("Find {0} {1}".format(what, [x for x in args]))

 def replace(old, new, *args):
  print("Replace {0} with {1} {2}".format(
    old, new, [x for x in args]))

 app = QApplication(sys.argv)
 form = FindAndReplaceDlg()
 form.find.connect(find)
 form.replace.connect(replace)
 form.show()
 app.exec_()

运行结果：

python3+PyQt5+Qt Designer实现扩展对话框

python3+PyQt5+Qt Designer实现扩展对话框

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持三水点靠木。

python3+PyQt5+Qt Designer实现扩展对话框

- Author -

basisworker

声明：登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。

Python 相关文章推荐
Python常用正则表达式符号浅析
Aug 13 Python
Python深入学习之闭包
Aug 31 Python
python计算文本文件行数的方法
Jul 06 Python
Python中的条件判断语句与循环语句用法小结
Mar 21 Python
python实现泊松图像融合
Jul 26 Python
python得到windows自启动列表的方法
Oct 14 Python
Django 多环境配置详解
May 14 Python
python 多维高斯分布数据生成方式
Dec 09 Python
pytorch 实现cross entropy损失函数计算方式
Jan 02 Python
谈一谈数组拼接tf.concat()和np.concatenate()的区别
Feb 07 Python
python+OpenCV实现图像拼接
Mar 05 Python
Python爬取微信小程序通用方法代码实例详解
Sep 29 Python
pandas获取groupby分组里最大值所在的行方法
Apr 20 #Python
pandas多级分组实现排序的方法
Apr 20 #Python
Python PyQt4实现QQ抽屉效果
Apr 20 #Python
Python在groupby分组后提取指定位置记录方法
Apr 20 #Python
PyQt实现界面翻转切换效果
Apr 20 #Python
python3+PyQt5+Qt Designer实现堆叠窗口部件
Apr 20 #Python
python3 pandas 读取MySQL数据和插入的实例
Apr 20 #Python
Hash(1) Bean(3) IOC(3) XML(1) RabbitMQ(3) Geospatial(1) 数据类型(8) 入门基础(1) metaclass(1) 触发器(3)
You might like
CI(CodeIgniter)框架配置
2014/06/10 PHP
通过源码解析Laravel的依赖注入
2018/01/22 PHP
PHP实现的mysql读写分离操作示例
2018/05/22 PHP
JavaScript 不只是脚本
2007/05/30 Javascript
javascript中关于break,continue的特殊用法与介绍
2012/05/24 Javascript
firefox下jquery iframe刷新页面提示会导致重复之前动作
2012/12/17 Javascript
举例简介AngularJS的内部语言环境
2015/06/17 Javascript
C#中使用迭代器处理等待任务
2015/07/13 Javascript
javascript常用的方法整理
2015/08/20 Javascript
使用jQuery制作遮罩层弹出效果的极简实例分享
2016/05/12 Javascript
基于layer.js实现收货地址弹框选择然后返回相应的地址信息
2017/05/26 Javascript
vue数据双向绑定的注意点
2017/06/23 Javascript
node跨域转发 express+http-proxy-middleware的使用
2018/05/31 Javascript
解决JavaScript中0.1+0.2不等于0.3问题
2018/10/23 Javascript
你不可不知的Vue.js列表渲染详解
2019/10/01 Javascript
Centos7 安装Node.js10以上版本的方法步骤
2019/10/15 Javascript
node.js中stream流中可读流和可写流的实现与使用方法实例分析
2020/02/13 Javascript
django中静态文件配置static的方法
2018/05/20 Python
numpy.where() 用法详解
2019/05/27 Python
jupyter notebook 使用过程中python莫名崩溃的原因及解决方式
2020/04/10 Python
Jupyter notebook快速入门教程(推荐)
2020/05/18 Python
世界上最大的街头服饰网站：Karmaloop
2017/02/04 全球购物
军神教学反思
2014/02/04 职场文书
人力资源经理的岗位职责范本
2014/02/28 职场文书
机工车间主任岗位职责
2014/03/05 职场文书
小学生迎国庆演讲稿
2014/09/05 职场文书
教师岗位职责范本
2015/04/02 职场文书
正规欠条模板
2015/07/03 职场文书
遗嘱范文
2015/08/07 职场文书
2016入党积极分子党课培训心得体会
2016/01/06 职场文书
大学生党员暑假实践（活动总结）
2019/08/21 职场文书
浅谈Redis中的RDB快照
2021/06/29 Redis
AJAX引擎原理以及XmlHttpRequest对象的axios、fetch区别详解
2022/04/09 Javascript
《游戏王：大师决斗》新活动上线 若无符合卡组可免费租用
2022/04/13 其他游戏
java实现面板之间切换功能
2022/06/10 Java/Android
Python如何加载模型并查看网络
2022/07/15 Python