masyarakat Belajar Perpustakaan Alatan Masa lapang
cari
Melayu
Rumah > pembangunan bahagian belakang > tutorial php > python3+PyQt5+Qt Designer实现扩展对话框

python3+PyQt5+Qt Designer实现扩展对话框

不言
Lepaskan： 2023-03-24 14:32:01
asal
3528 orang telah melayarinya

这篇文章主要为大家详细介绍了python3+PyQt5+Qt Designer实现扩展对话框，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

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&notes "
                          "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_()
Salin selepas log masuk


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&notes 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"))
Salin selepas log masuk


/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_()
Salin selepas log masuk


运行结果：

相关推荐：

Python3 中hasattr()、getattr()、setattr()、delattr()函数及示例代码


Atas ialah kandungan terperinci python3+PyQt5+Qt Designer实现扩展对话框. Untuk maklumat lanjut, sila ikut artikel berkaitan lain di laman web China PHP!

Label berkaitan：
designer kotak dialog
sumber：php.cn
Artikel sebelumnya：yii的CURD操作 Artikel seterusnya：pandas获取groupby分组里最大值所在的行方法
Kenyataan Laman Web ini
Kandungan artikel ini disumbangkan secara sukarela oleh netizen, dan hak cipta adalah milik pengarang asal. Laman web ini tidak memikul tanggungjawab undang-undang yang sepadan. Jika anda menemui sebarang kandungan yang disyaki plagiarisme atau pelanggaran, sila hubungi admin@php.cn
Artikel terbaru oleh pengarang
Isu terkini
function_exists() tidak boleh menentukan fungsi tersuai Ujian fungsi () {return true;} jika (function_exists ('test')) {echo "test is functio...
daripada 2024-04-29 11:01:01
0
3
2316
Bagaimana untuk memaparkan versi mudah alih Google Chrome Hello cikgu, bagaimana saya boleh menukar Google Chrome kepada versi mudah alih?
daripada 2024-04-23 00:22:19
0
11
2454
Tetingkap anak mengendalikan tetingkap induk, tetapi output tidak bertindak balas. Dua ayat pertama boleh dilaksanakan, tetapi ayat terakhir tidak boleh dilaksanakan.
daripada 2024-04-19 15:37:47
0
1
2068
Tiada output dalam tetingkap induk document.onclick = function(){ window.opener.document.write('Saya adalah output tetingkap ...
daripada 2024-04-18 23:52:34
0
1
1955
Di manakah perisian kursus tentang pemetaan minda CSS? Perisian kursus
daripada 2024-04-16 10:10:18
0
0
2023
Topik-topik yang berkaitan
Lagi>
Cadangan popular
Tutorial Popular
Lagi>
Tutorial berkaitan
Cadangan popular
Kursus terkini
Muat turun terkini
Lagi>
kesan web
Kod sumber laman web
Bahan laman web
Templat hujung hadapan