python3+PyQt5 自定义窗口部件--创建复合窗口部件

2019-11-08 19:54:51

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来源：转载

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复合窗口部件就是由两个或者多个其他窗口部件组合在一起的窗口部件。在大的工程项目中创建可重复使用的复合窗口部件能够节约大量时间。本文就是通过python3+PyQt5实现。

#!/usr/bin/env python3import sysfrom PyQt5.QtCore import Qtfrom PyQt5.QtWidgets import (Qapplication, QBoxLayout, QDialog, QDialogButtonBox, QGridLayout, QLabel, QLineEdit, QTextEdit, QVBoxLayout, QWidget)LEFT, ABOVE = range(2)class LabelledLineEdit(QWidget): def __init__(self, labelText="", position=LEFT, parent=None): super(LabelledLineEdit, self).__init__(parent) self.label = QLabel(labelText) self.lineEdit = QLineEdit() self.label.setBuddy(self.lineEdit) layout = QBoxLayout(QBoxLayout.LeftToRight if position == LEFT else QBoxLayout.TopToBottom) layout.addWidget(self.label) layout.addWidget(self.lineEdit) self.setLayout(layout)class LabelledTextEdit(QWidget): def __init__(self, labelText="", position=LEFT, parent=None): super(LabelledTextEdit, self).__init__(parent) self.label = QLabel(labelText) self.textEdit = QTextEdit() self.label.setBuddy(self.textEdit) layout = QBoxLayout(QBoxLayout.LeftToRight if position == LEFT else QBoxLayout.TopToBottom) layout.addWidget(self.label) layout.addWidget(self.textEdit) self.setLayout(layout)class Dialog(QDialog): def __init__(self, address=None, parent=None): super(Dialog, self).__init__(parent) self.street = LabelledLineEdit("&Street:") self.city = LabelledLineEdit("&City:") self.state = LabelledLineEdit("St&ate:") self.zipcode = LabelledLineEdit("&Zipcode:") self.notes = LabelledTextEdit("&Notes:", ABOVE) if address is not None: self.street.lineEdit.setText(address.get("street", "")) self.city.lineEdit.setText(address.get("city", "")) self.state.lineEdit.setText(address.get("state", "")) self.zipcode.lineEdit.setText(address.get("zipcode", "")) self.notes.textEdit.setPlainText(address.get("notes", "")) buttonBox = QDialogButtonBox(QDialogButtonBox.Ok| QDialogButtonBox.Cancel) grid = QGridLayout() grid.addWidget(self.street, 0, 0) grid.addWidget(self.city, 0, 1) grid.addWidget(self.state, 1, 0) grid.addWidget(self.zipcode, 1, 1) grid.addWidget(self.notes, 2, 0, 1, 2) layout = QVBoxLayout() layout.addLayout(grid) layout.addWidget(buttonBox) self.setLayout(layout) buttonBox.accepted.connect(self.accept) buttonBox.rejected.connect(self.reject) self.setWindowTitle("Labelled Widgets")if __name__ == "__main__": fakeAddress = dict(street="3200 Mount Vernon Memorial Highway", city="Mount Vernon", state="Virginia", zipcode="22121") app = QApplication(sys.argv) form = Dialog(fakeAddress) form.show() app.exec_() PRint("Street:", str(form.street.lineEdit.text())) print("City:", str(form.city.lineEdit.text())) print("State:", str(form.state.lineEdit.text())) print("Notes:") print(str(form.notes.textEdit.toPlainText()))

运行结果：这里写图片描述