PyQt5 控件字體樣式等設置

一、API接口設置

- 比如我這段代碼中的一些設置，設置文字、居中、禁止復制、LineEdit輸入為password等等

import sys

from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QFrame
from PyQt5.QtWidgets import QLabel
from PyQt5.QtWidgets import QWidget
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QTextEdit
from PyQt5.QtWidgets import QSizePolicy
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QGridLayout
from PyQt5.QtWidgets import QApplication




from View import interface

class MainWindow(QMainWindow):

    def __init__(self):
        super(MainWindow,self).__init__(None)
        self.setWindowTitle("對金屬腐蝕性試驗儀")
        self.initUI()

    def initUI(self):
        layout = QGridLayout()
        layout.setSpacing(10)
        self.loginLabel = QLabel("用戶名：")
        self.loginLabel.setAlignment(Qt.AlignRight)
        self.loginLabel.setStyleSheet("color:rgb(20,20,20,255);font-size:16px;font-weight:bold:text")
        self.loginTxt = QLineEdit()
        self.loginTxt.setText("admin")
        self.loginTxt.setPlaceholderText("User Name")
        self.loginTxt.setClearButtonEnabled(True)
        self.pwdLabel = QLabel("密碼：")
        self.pwdLabel.setAlignment(Qt.AlignRight)
        self.pwdTxt = QLineEdit()
        self.pwdTxt.setContextMenuPolicy(Qt.NoContextMenu) #禁止復制粘貼
        self.pwdTxt.setPlaceholderText("Password")
        self.pwdTxt.setText("admin")
        self.pwdTxt.setEchoMode(QLineEdit.Password)
        self.pwdTxt.setClearButtonEnabled(True)
        self.registeredBtn = QPushButton("注冊")
        self.loginBtn = QPushButton("登陸")

        self.headLabel = QLabel("用戶登陸")
        self.headLabel.resize(300,30)
        self.headLabel.setAlignment(Qt.AlignCenter)
        self.headLabel.setStyleSheet("color:rgb(10,10,10,255);font-size:25px;font-weight:bold;font-family:Roman times;")

        self.headLabel.setSizePolicy(QSizePolicy.Expanding,QSizePolicy.Expanding)
        layout.addWidget(self.headLabel,0,0,1,2)
        policy = self.headLabel.sizePolicy()
        print(policy.verticalPolicy())
        policy.setVerticalPolicy(1)
        print(policy.verticalPolicy())
        # policy.setVerticalPolicy(1)
        layout.addWidget(self.loginLabel,1,0)
        layout.addWidget(self.loginTxt,1,1)
        layout.addWidget(self.pwdLabel,2,0)
        layout.addWidget(self.pwdTxt,2,1)
        layout.addWidget(self.registeredBtn,3,0)
        layout.addWidget(self.loginBtn,3,1)

        frame = QFrame(self)
        frame.setLayout(layout)
        self.setCentralWidget(frame)
        self.resize(300,150)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    mainWindow = MainWindow()
    mainWindow.show()
    mainWindow.activateWindow()
    mainWindow.raise_()
    app.exec_()
    del mainWindow
    del app

1.1.0 QLineEdit一些屬性

inputMask設置掩碼
text 設置文本
maxLength文本框輸入的最大字符數
frame 設置邊框
echoMode 設置文本框顯示格式
Normal正常顯示所輸入的字符，此為默認選項
NoEcho不顯示任何輸入的字符，常用於密碼類型的輸入，且長度保密
Password顯示與平台相關的密碼掩飾字符，而不是實際輸入的字符
PasswordEchoOnEdit在編輯時顯示字符，負責顯示密碼類型的輸入
cursorPosition光標位置
alignment文本對齊方式
AlignLeft左對齊
AlignRight右對齊
AlignCenter水平居中對齊
AlignJustify水平方向調整間距兩端對齊
AlignTop垂直上對齊
AlignBottom垂直方下對齊
AlignVCenter垂直方向居中對齊
dragEnabled設置文本框是否接受拖動
readOnly設置文本為只讀
placeholderText設置文本框提示文字
cursorMoveStyle光標移動風格
LogicalMoveStyle邏輯風格
VisualMoveStyle視覺風格
clearButtonEnabled快速刪除按鈕

參考文章,QLineEdit屬性、信號、方法等

1.1 常用的一些設置

• setAlignment(self, Union, Qt_Alignment=None,Qt_AlignmentFlag=None): 設置字體對齊方式

參數	作用
AlignAbsolute=16
AlignBaseline=256
AlignBottom=64	底端對齊
AlignCenter=132	完全居中
AlignHCenter=4	水平居中
AlignHorizontal_Mask=31
AlignJustify=8	可用空間對齊
AlignLeading=1	領頭對齊(理解為左對齊吧)
AlignLeft=1	左對齊
AlignRight=2	右對齊
AlignTop=32	上對齊
AlignTrailing=2	尾對齊(右對齊
AlignVCenter=128	垂直居中

• setClearButtonEnabled(self, bool): 是否有清除文本按鈕(如我第一段程序文本框后的 小黑X)
• setCompleter(self, QCompleter):設置自動補全QLineEdit自動補全

• setCursorMoveStyle(self, Qt_CursorMoveStyle):
• setCursorPosition(self, p_int):
• setDragEnabled(self, bool):
• setEchoMode(self, QLineEdit_EchoMode):
• setFrame(self, bool):
• setInputMask(self, p_str):
• setMaxLength(self, p_int):
• setModified(self, bool):
• setPlaceholderText(self, p_str):
• setReadOnly(self, bool):
• setSelection(self, p_int, p_int_1):
• setText(self, p_str):
• setTextMargins(self, *__args):
• setValidator(self, QValidator):