PyQt5 基本窗口控件（状态栏/窗口/图标/提示消息/QLabel/文本类控件）

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

# Form implementation generated from reading ui file 'D:\gitcode\Python_learning\qt\ch4\status_bar1.ui'
#
# Created by: PyQt5 UI code generator 5.15.4
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(330, 223)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
        self.statusbar.showMessage("hello, Michael")

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

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(330, 223)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
        self.statusbar.showMessage("hello, Michael", 2000)
        MainWindow.setWindowTitle("center_display1")

		# 居中显示
        self.center_display(MainWindow)

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

    def center_display(self, MainWindow):
    	# 获取屏幕大小
        screen = QDesktopWidget().screenGeometry() 
        # 获取窗口大小
        size = MainWindow.geometry()
        # 移动窗口到中心 即 1/2 的位置
        MainWindow.move((screen.width() - size.width()) // 2, (screen.height() - size.height()) // 2)

import time
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QApplication, QMainWindow, QHBoxLayout


class Ui_MainWindow(QMainWindow):
    def __init__(self):
        super(Ui_MainWindow, self).__init__()
        self.setWindowTitle("michael close window")
        self.resize(400, 300)
        self.closeButton = QtWidgets.QPushButton("关闭窗口按钮！！")
        self.closeButton.setGeometry(QtCore.QRect(110, 190, 91, 31))
        self.closeButton.setObjectName("closeButton")

        layout = QHBoxLayout()
        layout.addWidget(self.closeButton)
        main_frame = QtWidgets.QWidget()
        main_frame.setLayout(layout)

        self.setCentralWidget(main_frame)

        # 关闭窗口
        self.closeButton.clicked.connect(self.onClick)


    def onClick(self):
        sender = self.sender()
        print(sender.text() + "被点击了")
        # 关闭窗口按钮！！被点击了
        time.sleep(2)
        self.close()


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    win = Ui_MainWindow()
    win.show()
    sys.exit(app.exec_())

# _*_ coding: utf-8 _*_
# @Time : 2022/5/3 9:45
# @Author : Michael
# @File : screen_geometry1.py
# @desc :
from PyQt5.QtWidgets import QWidget, QDesktopWidget, QApplication, QPushButton
import sys

app = QApplication(sys.argv)
widget = QWidget()
btn = QPushButton('点击我', parent=widget)
btn.move(100, 50)
btn.resize(180, 30)
widget.resize(300, 300)
widget.move(150, 300)
widget.setWindowTitle('我的窗口')
widget.setFixedWidth(300)  # 固定宽度

widget.show()
print('w.x() = ', widget.x())
print('w.y() = ', widget.y())
print('w.width() = ', widget.width())
print('w.height() = ', widget.height())
print('w.geometry() = ', widget.geometry())
print('w.geometry().x() = ', widget.geometry().x())
print('w.geometry().y() = ', widget.geometry().y())
print('w.geometry().width() = ', widget.geometry().width())
print('w.geometry().height() = ', widget.geometry().height())
print('w.frameGeometry() = ', widget.frameGeometry())
print('w.frameGeometry().x() = ', widget.frameGeometry().x())
print('w.frameGeometry().y() = ', widget.frameGeometry().y())
print('w.frameGeometry().width() = ', widget.frameGeometry().width())
print('w.frameGeometry().height() = ', widget.frameGeometry().height())
print('w.pos() = ', widget.pos())
sys.exit(app.exec_())

w.x() =  150
w.y() =  300
w.width() =  300
w.height() =  300
w.geometry() =  PyQt5.QtCore.QRect(151, 331, 300, 300)
w.geometry().x() =  151
w.geometry().y() =  331
w.geometry().width() =  300
w.geometry().height() =  300
w.frameGeometry() =  PyQt5.QtCore.QRect(150, 300, 302, 332)
w.frameGeometry().x() =  150
w.frameGeometry().y() =  300
w.frameGeometry().width() =  302
w.frameGeometry().height() =  332
w.pos() =  PyQt5.QtCore.QPoint(150, 300)

from PyQt5.QtGui import QIcon
widget.setWindowIcon(QIcon('logo.png'))

from PyQt5.QtGui import QIcon, QFont
from PyQt5.QtWidgets import QWidget, QDesktopWidget, QApplication, QPushButton, QToolTip

QToolTip.setFont(QFont('SansSerif', 10))
widget.setToolTip('这是一个<b>气泡提示</b>')

# _*_ coding: utf-8 _*_
# @Time : 2022/5/3 13:45
# @Author : Michael
# @File : qlabel1.py
# @desc :
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPalette, QPixmap
from PyQt5.QtWidgets import QWidget, QLabel, QVBoxLayout, QApplication


class window_qlabel(QWidget):
    def __init__(self):
        super().__init__()

        label1 = QLabel()
        label2 = QLabel()
        label3 = QLabel()
        label4 = QLabel()

        label1.setText("<font color=red>这是一个红色的文本</font>")
        label1.setAutoFillBackground(True)
        palette = QPalette()
        palette.setColor(QPalette.Window, Qt.blue) # 设置背景色
        label1.setPalette(palette) # 设置背景色
        label1.setAlignment(Qt.AlignCenter) # 设置文本对齐方式
        label1.setTextInteractionFlags(Qt.TextSelectableByMouse) # 设置文本可选

        label2.setText("<a href='#'>michael 学习 PyQt</a>")
        label2.linkActivated.connect(self.link_clicked) # 连接鼠标点击信号

        label4.setText("<a href='http://michael.blog.csdn.net'>michael的博客</a>")
        label4.setOpenExternalLinks(True) # 设置打开外部链接
        label4.setToolTip("欢迎访问！") # 设置鼠标悬停提示
        label4.linkHovered.connect(self.link_hovered) # 连接鼠标悬停信号

        label3.setAlignment(Qt.AlignCenter) # 设置文本对齐方式
        label3.setToolTip('提示：这是一张图片哦') # 设置鼠标悬停提示
        label3.setPixmap(QPixmap('logo.png'))   # 设置图片

        vbox = QVBoxLayout()
        vbox.addWidget(label1)
        vbox.addStretch()
        vbox.addWidget(label2)
        vbox.addStretch()
        vbox.addWidget(label3)
        vbox.addStretch()
        vbox.addWidget(label4)

        self.setLayout(vbox)
        self.setWindowTitle("QLabel 示例")

    def link_hovered(self):
        print("鼠标悬停")

    def link_clicked(self):
        print("鼠标点击")


if __name__ == '__main__':
    import sys
    app = QApplication(sys.argv)
    win = window_qlabel()
    win.show()
    sys.exit(app.exec_())

# _*_ coding: utf-8 _*_
# @Time : 2022/5/4 9:10
# @Author : Michael
# @File : qlabel_hotkey1.py
# @desc :

import sys
from PyQt5.QtWidgets import QWidget, QLabel, QApplication, QDialog, QLineEdit, QPushButton, QGridLayout


class Qlabel_hotkey1(QDialog):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("QLabel_hotkey1 demo")
        nameLabel1 = QLabel("&Name") # 必须加& 否则不能绑定快捷键
        nameLineEdit1 = QLineEdit()
        nameLabel1.setBuddy(nameLineEdit1) # 设置名称标签和输入框的关联

        nameLabel2 = QLabel("&Password")
        nameLineEdit2 = QLineEdit()
        nameLabel2.setBuddy(nameLineEdit2)

        submit_btn = QPushButton("&Submit")
        cancel_btn = QPushButton("&Cancel")
        layout = QGridLayout(self)
        layout.addWidget(nameLabel1, 0, 0)
        layout.addWidget(nameLineEdit1, 0, 1, 1, 2)

        layout.addWidget(nameLabel2, 1, 0)
        layout.addWidget(nameLineEdit2, 1, 1, 1, 2)

        layout.addWidget(submit_btn, 2, 1)
        layout.addWidget(cancel_btn, 2, 2)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    w = Qlabel_hotkey1()
    w.show()
    sys.exit(app.exec_())

# _*_ coding: utf-8 _*_
# @Time : 2022/5/4 14:26
# @Author : Michael
# @File : line_edit1.py
# @desc :

from PyQt5.QtWidgets import QApplication, QWidget, QLineEdit, QLabel, QFormLayout
import sys

class lineEditDemo(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("lineEditDemo")

        layout = QFormLayout()

        normalLineEdit = QLineEdit()
        noEchoLineEdit = QLineEdit()
        passwordLineEdit = QLineEdit()
        passwordEchoOnEditLineEdit = QLineEdit()

        layout.addRow("Normal LineEdit", normalLineEdit)
        layout.addRow("No Echo LineEdit", noEchoLineEdit)
        layout.addRow("Password LineEdit", passwordLineEdit)
        layout.addRow("Password Echo On Edit LineEdit", passwordEchoOnEditLineEdit)

        normalLineEdit.setPlaceholderText("Normal LineEdit")
        noEchoLineEdit.setPlaceholderText("No Echo LineEdit")
        passwordLineEdit.setPlaceholderText("Password LineEdit")
        passwordEchoOnEditLineEdit.setPlaceholderText("Password Echo On Edit LineEdit")

        normalLineEdit.setEchoMode(QLineEdit.Normal)
        noEchoLineEdit.setEchoMode(QLineEdit.NoEcho)
        passwordLineEdit.setEchoMode(QLineEdit.Password)
        passwordEchoOnEditLineEdit.setEchoMode(QLineEdit.PasswordEchoOnEdit)

        self.setLayout(layout)
if __name__=='__main__':
    app = QApplication(sys.argv)
    main = lineEditDemo()
    main.show()
    sys.exit(app.exec_())

# _*_ coding: utf-8 _*_
# @Time : 2022/5/4 15:23
# @Author : Michael
# @File : validator1.py
# @desc :
from PyQt5.QtCore import QRegExp
from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QLineEdit, QPushButton, QHBoxLayout, QVBoxLayout, QFormLayout
from PyQt5.QtGui import QIntValidator, QDoubleValidator, QRegExpValidator
import sys

class lineEditDemo1(QWidget):
    def __init__(self):
        super().__init__()

        self.setWindowTitle('lineEditDemo1 验证器')
        layout = QFormLayout()
        intLineEdit = QLineEdit()
        doubleLineEdit = QLineEdit()
        validatorLineEdit = QLineEdit()

        layout.addRow('整数', intLineEdit)
        layout.addRow('浮点数', doubleLineEdit)
        layout.addRow('字母和数字', validatorLineEdit)

        intLineEdit.setPlaceholderText('整数')
        doubleLineEdit.setPlaceholderText('浮点数')
        validatorLineEdit.setPlaceholderText('字母和数字')

        intValidator = QIntValidator(self)
        intValidator.setRange(1,99)

        doubleValidator = QDoubleValidator(self)
        doubleValidator.setRange(-100, 100)
        doubleValidator.setNotation(QDoubleValidator.StandardNotation)
        doubleValidator.setDecimals(2)

        regValidator = QRegExpValidator(QRegExp('[a-zA-Z0-9]+$'), self)

        intLineEdit.setValidator(intValidator)
        doubleLineEdit.setValidator(doubleValidator)
        validatorLineEdit.setValidator(regValidator)

        self.setLayout(layout)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    main = lineEditDemo1()
    main.show()
    sys.exit(app.exec_())

# _*_ coding: utf-8 _*_
# @Time : 2022/5/4 15:48
# @Author : Michael
# @File : inputMask1.py
# @desc :
from PyQt5.QtWidgets import QWidget, QFormLayout, QLineEdit


class inputmask(QWidget):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("输入掩码")

        layout = QFormLayout()
        ip_lineEdit = QLineEdit()
        mac_lineEdit = QLineEdit()
        date_lineEdit = QLineEdit()
        licence_lineEdit = QLineEdit()

        ip_lineEdit.setInputMask("000.000.000.000;_")
        mac_lineEdit.setInputMask("HH:HH:HH:HH:HH:HH;_")
        date_lineEdit.setInputMask("0000-00-00")
        licence_lineEdit.setInputMask(">AAAAA-AAAAA-AAAAA-AAAAA-AAAAA;#")

        layout.addRow("IP地址", ip_lineEdit)
        layout.addRow("MAC地址", mac_lineEdit)
        layout.addRow("日期", date_lineEdit)
        layout.addRow("许可证", licence_lineEdit)

        self.setLayout(layout)


if __name__ == '__main__':
    import sys
    from PyQt5.QtWidgets import QApplication

    app = QApplication(sys.argv)
    win = inputmask()
    win.show()
    sys.exit(app.exec_())

# _*_ coding: utf-8 _*_
# @Time : 2022/5/4 16:22
# @Author : Michael
# @File : text_example.py
# @desc :
from PyQt5.QtGui import QIntValidator, QFont, QDoubleValidator
from PyQt5.QtWidgets import QWidget, QLineEdit, QFormLayout
from PyQt5.QtCore import Qt


class lineEdit_demo(QWidget):
    def __init__(self):
        super(lineEdit_demo, self).__init__()

        e1 = QLineEdit()
        e1.setValidator(QIntValidator())
        e1.setMaxLength(4)
        e1.setAlignment(Qt.AlignRight)
        e1.setFont(QFont("Arial", 20))

        e2 = QLineEdit()
        e2.setValidator(QDoubleValidator(0.99, 99.99, 2))

        layout = QFormLayout()
        layout.addRow("整数验证器", e1)
        layout.addRow("浮点数验证器", e2)

        e3 = QLineEdit()
        e3.setInputMask("+99_9999_999999")

        layout.addRow("输入掩码", e3)

        e4 = QLineEdit()
        e4.textChanged.connect(self.text_changed)

        layout.addRow("文本改变", e4)

        e5 = QLineEdit()
        e5.setEchoMode(QLineEdit.Password)
        e5.editingFinished.connect(self.enterPress)

        layout.addRow("密码模式", e5)

        e6 = QLineEdit("Hello world, michael")
        e6.setReadOnly(True)

        layout.addRow("只读", e6)

        self.setLayout(layout)
        self.setWindowTitle("QLineEdit控件")

    def text_changed(self, text):
        print('输入的内容：', text)

    def enterPress(self):
        print("已输入内容")


if __name__ == '__main__':
    import sys
    from PyQt5.QtWidgets import QApplication

    app = QApplication(sys.argv)
    main = lineEdit_demo()
    main.show()
    sys.exit(app.exec_())

# _*_ coding: utf-8 _*_
# @Time : 2022/5/4 19:24
# @Author : Michael
# @File : text_edit1.py
# @desc :
from PyQt5.QtWidgets import QWidget, QTextEdit, QPushButton, QVBoxLayout, QApplication


class textEdit1(QWidget):
    def __init__(self):
        super().__init__()

        self.setWindowTitle('多行文本例子')
        self.resize(300, 200)
        self.textEdit = QTextEdit()
        self.btn1 = QPushButton('显示文本')
        self.btn2 = QPushButton('显示HTML')
        self.btn1.clicked.connect(self.btn1_clicked)
        self.btn2.clicked.connect(self.btn2_clicked)

        layout = QVBoxLayout()
        layout.addWidget(self.textEdit)
        layout.addWidget(self.btn1)
        layout.addWidget(self.btn2)
        self.setLayout(layout)

    def btn1_clicked(self):
        self.textEdit.setPlainText('Hello Michael!')

    def btn2_clicked(self):
        self.textEdit.setHtml(
            "<font color='red' size='10'>Hello Michael!<br>点击按钮</font><br><br><br><br><a href='https://michael.blog.csdn.net/'>访问我的博客</a>")


if __name__ == '__main__':
    import sys
    app = QApplication(sys.argv)
    ui = textEdit1()
    ui.show()
    sys.exit(app.exec_())