python3+PyQt5+Qt Designer implémente une boîte de dialogue étendue

Cet article présente principalement python3+PyQt5+Qt Designer pour implémenter en détail la boîte de dialogue étendue. Il a une certaine valeur de référence. Les amis intéressés peuvent s'y référer

Cet article est une revue de "Python Qt The. L'exemple de boîte de dialogue étendue Rechercher et remplacer dans le chapitre 9 de « Programmation rapide GUI » est réécrit à l'aide de Python3+PyQt5+Qt Designer.

La première partie n'emprunte pas Qt Designer, elle est entièrement implémentée dans le code.
La deuxième partie est implémentée rapidement à l'aide de Qt Designer.

Première partie :

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_()

Deuxième partie :

/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"))

/ accueil /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_()

Résultat en cours :

Recommandations associées :

fonctions hasattr(), getattr(), setattr(), delattr() en Python3 et exemple de code

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