pyqt4 笔记2-点击按钮改变样式

环境： python3.6.5+pyqt4.11.4+win7

样式1 

首先，需要在QT控件属性中勾选checkable、autoExclusive。如下图所示：

设置后，ui文件所转化的py文件里就会有以下两句话 ：

        self.pushButton.setCheckable(True)
        self.pushButton.setAutoExclusive(True)

然后在QT designer中右键按钮，改变样式表，写入以下代码

QPushButton{
   text-decoration:none;  
    background:#05B8CC;
    color:#f2f2f2;  
      
    padding: 10px 30px 10px 30px;  
    font-size:16px;  
    font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  
    font-weight:bold;  
    border-radius:3px;  
}
QPushButton::checked,QToolButton::checked{ background: #3C79F2; border-color: #11505C; font-weight: bold; font-family:Microsoft YaHei; }

或在py文件中直接修改

    self.pushButton_2.setStyleSheet(_fromUtf8("QPushButton{\n"
"   text-decoration:none;  \n"
"    background:#05B8CC;\n"
"    color:#f2f2f2;  \n"
"      \n"
"    padding: 10px 30px 10px 30px;  \n"
"    font-size:16px;  \n"
"    font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  \n"
"    font-weight:bold;  \n"
"    border-radius:3px;  \n"
"}\n"
"QPushButton:checked{\n" 
"background: #3C79F2;\n"
"border-color: #11505C;\n"
"font-weight: bold;\n" 
"font-family:Microsoft YaHei;\n"
"}"
))

QPushButton中为原来样式、QPushuButton::checked为点击按钮后改变的样式

 

点击按钮前按钮样式如下图所示，

 

点击按钮后样式：

 

 

 

样式2

 鼠标移至按钮，按钮透明度改变，点击按钮时透明度恢复并且文字位置会发生改变。

设置方法同样式1，先在代码中加上以下内容：

        self.pushButton.setCheckable(True)
        self.pushButton.setAutoExclusive(True)

 并为按钮添加相应样式：

 self.pushButton_2.setStyleSheet(_fromUtf8("QPushButton{\n"
"font-size:26px;  \n"
"color:#f2f2f2;  \n"
"font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  \n"
"background-color: rgba(95, 255, 37,255);\n"
"border:2px solid white;border-radius:10px;\n"
"}\n"
"QPushButton:hover{\n" 
" font-size:26px;  \n"
"color:#f2f2f2;  \n"
" font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  \n"
"background-color: rgba(95, 255, 37, 180);\n"
"border:2px solid white;border-radius:10px;\n"
"}\n"
"QPushButton:pressed{\n"
" font-size:26px;  \n"
"color:#f2f2f2;  \n"
" font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  \n"
"background-color: rgba(95, 255, 37, 255);\n"
"border:2px solid white;border-radius:10px;\n"
"padding-left:3px;\n"
"padding-top:3px;\n"
"}"
))

QPushButton{}内表示原来样式， QPushButton：hover{}表示鼠标悬停时样式，QPushButton：pressed{}表示鼠标按下时样式。

 

源码如下：

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

# Form implementation generated from reading ui file 'ipc_main.ui'
#
# Created by: PyQt4 UI code generator 4.11.4
#
# WARNING! All changes made in this file will be lost!

from PyQt4 import QtCore, QtGui

try:
    _fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
    def _fromUtf8(s):
        return s

try:
    _encoding = QtGui.QApplication.UnicodeUTF8
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig)

class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName(_fromUtf8("Form"))
        Form.resize(577, 371)
        Form.setStyleSheet(_fromUtf8(""))
        self.label = QtGui.QLabel(Form)
        self.label.setGeometry(QtCore.QRect(200, 60, 221, 81))
        font = QtGui.QFont()
        font.setFamily(_fromUtf8("微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif"))
        font.setPointSize(-1)
        font.setBold(True)
        font.setUnderline(False)
        font.setWeight(75)
        font.setStrikeOut(False)
        self.label.setFont(font)
        self.label.setStyleSheet(_fromUtf8("QLabel{\n"
"   text-decoration:none;  \n"
"    background:#2f435e;  \n"
"    color:#f2f2f2;  \n"
"      \n"
"    padding: 10px 30px 10px 30px;  \n"
"    font-size:26px;  \n"
"    font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  \n"
"    font-weight:bold;  \n"
"    border-radius:3px;  \n"
"}"))
        self.label.setTextFormat(QtCore.Qt.AutoText)
        self.label.setObjectName(_fromUtf8("label"))
        self.pushButton = QtGui.QPushButton(Form)
        self.pushButton.setGeometry(QtCore.QRect(70, 190, 161, 81))
        self.pushButton.setStyleSheet(_fromUtf8("QPushButton{\n"
"font-size:26px;  \n"
"color:#f2f2f2;  \n"
"font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  \n"
"background-color: rgba(0,33,99, 255);\n"
"border:2px solid white;border-radius:10px;\n"
"}\n"
" \n"
"QPushButton:hover{ \n"
"font-size:26px;  \n"
"color:#f2f2f2;  \n"
"font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  \n"
"background-color: rgba(0,33,99, 150);\n"
"border:2px solid white;border-radius:10px;\n"
"}\n"
" \n"
"QPushButton:pressed{\n"
"font-size:26px;  \n"
"color:#f2f2f2;  \n"
"font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  \n"
"background-color: rgba(0,33,99, 255);\n"
"border:2px solid white;border-radius:10px;\n"
"padding-left:3px;\n"
"padding-top:3px;\n"
"} "))
        self.pushButton.setCheckable(True)
        self.pushButton.setAutoExclusive(True)
        self.pushButton.setObjectName(_fromUtf8("pushButton"))
        self.pushButton_2 = QtGui.QPushButton(Form)
        self.pushButton_2.setGeometry(QtCore.QRect(350, 200, 161, 81))
        self.pushButton_2.setStyleSheet(_fromUtf8("QPushButton{\n"
"font-size:26px;  \n"
"color:#f2f2f2;  \n"
"font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  \n"
"background-color: rgba(95, 255, 37,255);\n"
"border:2px solid white;border-radius:10px;\n"
"}\n"
"QPushButton:hover{\n" 
" font-size:26px;  \n"
"color:#f2f2f2;  \n"
" font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  \n"
"background-color: rgba(95, 255, 37, 180);\n"
"border:2px solid white;border-radius:10px;\n"
"}\n"
"QPushButton:pressed{\n"
" font-size:26px;  \n"
"color:#f2f2f2;  \n"
" font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  \n"
"background-color: rgba(95, 255, 37, 255);\n"
"border:2px solid white;border-radius:10px;\n"
"padding-left:3px;\n"
"padding-top:3px;\n"
"}"
))
        self.pushButton_2.setCheckable(True)
        self.pushButton_2.setAutoExclusive(True)
        self.pushButton_2.setObjectName(_fromUtf8("pushButton_2"))

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

    def retranslateUi(self, Form):
        Form.setWindowTitle(_translate("Form", "Form", None))
        self.label.setText(_translate("Form", "ipc升级工具", None))
        self.pushButton.setText(_translate("Form", "内核升级", None))
        self.pushButton_2.setText(_translate("Form", "TFTP升级", None))

import picture_rc,sys


class MainWindow(QtGui.QDialog): 
    def __init__(self,parent=None):
        QtGui.QWidget.__init__(self,parent)
        self.ui=Ui_Form()# Ui_Dialog为.ui产生.py文件中窗体类名，经测试类名以Ui_为前缀，加上UI窗体对象名（此处为Dialog，见上图）
        self.ui.setupUi(self)

        self.setWindowFlags(QtCore.Qt.FramelessWindowHint)     #构造函数中设置去掉菜单栏


    def mousePressEvent(self, event):
        self.pressX = event.x()    #记录鼠标按下的时候的坐标
        self.pressY = event.y()

    def mouseMoveEvent(self, event):
        x = event.x()
        y = event.y()   #获取移动后的坐标
        moveX = x-self.pressX
        moveY = y-self.pressY  #计算移动了多少
        positionX = self.frameGeometry().x() + moveX
        positionY = self.frameGeometry().y() + moveY    #计算移动后主窗口在桌面的位置
        self.move(positionX, positionY)    #移动主窗口    



if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    myapp=MainWindow()
    myapp.show()
    #myapp.btn.clicked.connect(ui2.show)
    app.exec_()