pyqt4制作透明无边框窗体
用PyQt做了一个无边框登陆窗口，效果如下：
下面是代码：
# -*- coding: utf-8 -*-
from PyQt4 import QtGui ,Qt ,QtCore
image=QtGui.QImage()
bgImage=image.load("images/logins.png")
class labelBtn(QtGui.QLabel):
"""
自定义图片按钮类
"""
def __init__(self,ID):
super(labelBtn, self).__init__()
self.setMouseTracking(True)
self.ID=ID
def mouseReleaseEvent(self,event): #注:
#鼠标点击事件
self.parent().btnHandle(self.ID)
def enterEvent(self,event):
#鼠标进入时间
self.parent().btnEnter(self.ID)
def leaveEvent(self,event):
#鼠标离开事件
self.parent().btnLeave(self.ID)
class login(QtGui.QMainWindow):
def __init__(self,parent=None):
super(login, self).__init__(parent)
self.setWindowTitle(u"学生体能健康测试软件")
self.setFixedSize(347,264)
self.setWindowIcon(QtGui.QIcon("images/umbrella.png"))
#窗口居中显示
desktop =QtGui.QApplication.desktop()
width = desktop.width()
height = desktop.height()
self.move((width - self.width())/2, (height - self.height())/2)
self.setMouseTracking(True)
#无边框
self.setWindowFlags(Qt.Qt.FramelessWindowHint)
#显示托盘信息
self.trayIcon = QtGui.QSystemTrayIcon(self)
self.trayIcon.setIcon(QtGui.QIcon("images/umbrella.png"))
self.trayIcon.show()
self.trayIcon.activated.connect(self.trayClick) #点击托盘
self.trayMenu() #右键菜单
label_user = QtGui.QLabel(u"账号",self)
label_user.setGeometry(QtCore.QRect(125, 135, 50, 22))
label_passwd = QtGui.QLabel(u"密码",self)
label_passwd.setGeometry(QtCore.QRect(125, 170, 50, 22))
self.label = QtGui.QLabel(self)
self.label.setGeometry(QtCore.QRect(19, 129, 80, 80))
self.label.setPixmap(QtGui.QPixmap("images/teacher.png"))
self.lineEdit_user = QtGui.QLineEdit(u"root",self)
self.lineEdit_user.setGeometry(QtCore.QRect(160, 135, 150, 22))
self.lineEdit_passwd = QtGui.QLineEdit(u'1234',self)
self.lineEdit_passwd.setGeometry(QtCore.QRect(160, 170, 150, 22))
self.lineEdit_passwd.setEchoMode(QtGui.QLineEdit.Password)
self.lineEdit_passwd.setValidator(QtGui.QRegExpValidator(Qt.QRegExp("[A-Za-z0-9]+"),self))
#这里也可以设置QLineEdit背景为透明
self.pushButton_login = QtGui.QPushButton(QtGui.QIcon("images/login.png"),u"登录",self)
self.pushButton_login.setGeometry(QtCore.QRect(250, 235, 75, 22))
self.pushButton_change = QtGui.QPushButton(QtGui.QIcon("images/onetwo.png"),u"身份切换",self)
self.pushButton_change.setGeometry(QtCore.QRect(10, 235, 75, 22))
self.pushButton_change.setFlat(True)
self.pushButton_change.setContextMenuPolicy(Qt.Qt.CustomContextMenu)
self.btn_min=labelBtn(1) #定义最小化按钮 ID:1
self.btn_min.setParent(self)
self.btn_min.setGeometry(281,0,27,23)
self.btn_min.setToolTip(u"最小化")
self.btn_close=labelBtn(2) #定义关闭按钮 ID:2
self.btn_close.setParent(self)
self.btn_close.setGeometry(310,0,38,21)
self.btn_close.setToolTip(u"关闭")
self.connect(self.pushButton_change, QtCore.SIGNAL("clicked()"),self.contextMenu)
self.connect(self.pushButton_login, QtCore.SIGNAL("clicked()"),self.log_in)
def contextMenu(self): self.userOption = QtGui.QAction(QtGui.QIcon("images/user.png"),u"学生", self) self.rootOption = QtGui.QAction(QtGui.QIcon("images/root.png"),u"老师", self) self.userOption.triggered.connect(self.user) self.rootOption.triggered.connect(self.root) menu = QtGui.QMenu(self) menu.addAction(self.rootOption) menu.addAction(self.userOption) menu.exec_(QtGui.QCursor.pos())
def root(self):
self.pushButton_change.setText(u"老师")
self.label.setPixmap(QtGui.QPixmap("images/teacher.png"))
def user(self):
self.pushButton_change.setText(u"学生")
self.label.setPixmap(QtGui.QPixmap("images/students.png"))
def log_in(self):
dlg=QtGui.QMessageBox(self)
dlg.information(self, u"提示",u"应该跳向另一个窗口，这里没有写！",QtGui.QMessageBox.Ok)
def btnHandle(self,ID):
#最小化
if ID==1:
self.hide()
self.showMinimized()
elif ID==2:
#关闭
self.trayIcon.hide()
self.close()
def btnEnter(self,ID):
#鼠标进入
if ID == 1:
self.btn_min.setPixmap(QtGui.QPixmap("images/min.png"))
elif ID == 2:
self.btn_close.setPixmap(QtGui.QPixmap("images/close.png"))
def btnLeave(self,ID):
#鼠标离开
'''false.png这张图片是不存在的，目的是要在鼠标
离开后还原背景，因为默认按钮我已经PS在背景上了'''
self.btn_min.setPixmap(QtGui.QPixmap("images/false.png"))
self.btn_close.setPixmap(QtGui.QPixmap("images/false.png"))
def trayClick(self,reason):
#双击托盘
if reason==QtGui.QSystemTrayIcon.DoubleClick:
self.showNormal()
else:
pass
def trayMenu(self):
#右击托盘弹出的菜单
img_main = QtGui.QIcon("images/main.png")
img_exit = QtGui.QIcon("images/exit.png")
self.trayIcon.setToolTip(u"学生体能健康测试软件")
self.restoreAction = QtGui.QAction(img_main,u"打开主窗口", self)
self.restoreAction.triggered.connect(self.showNormal)
self.quitAction = QtGui.QAction(img_exit,u"退出", self)
self.quitAction.triggered.connect(QtGui.qApp.quit)
self.trayIconMenu = QtGui.QMenu(self)
self.trayIconMenu.addAction(self.restoreAction)
self.trayIconMenu.addSeparator()
self.trayIconMenu.addAction(self.quitAction)
self.trayIcon.setContextMenu(self.trayIconMenu)
def resizeEvent(self,event):
#重绘窗体背景
pal=QtGui.QPalette()
pal.setBrush(QtGui.QPalette.Window,QtGui.QBrush(image.scaled(event.size(),
Qt.Qt.KeepAspectRatioByExpanding,Qt.Qt.SmoothTransformation)))
self.setPalette(pal)
"""下面这两个才是重点，是动得关键"""
def mousePressEvent(self,event):
#鼠标点击事件
if event.button() == QtCore.Qt.LeftButton:
self.dragPosition = event.globalPos() - self.frameGeometry().topLeft()
event.accept()
def mouseMoveEvent(self,event):
#鼠标移动事件
if event.buttons() ==QtCore.Qt.LeftButton:
self.move(event.globalPos() - self.dragPosition)
event.accept()
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
frm = login()
frm.show()
sys.exit(app.exec_())
注
:目前的问题是QLabel相应的是点击事件，不是单击事件，这个问题还没用解决！
转载：http://blog.chinaunix.net/uid-25979788-id-3081886.html
