PYQT視窗居中

#ui.py，通過ui設計師制作後直接轉換為ui.py腳本

# -*- coding: utf-8 -*-

from pyqt4 import qtcore, qtgui

try:

    _fromutf8 = qtcore.qstring.fromutf8

except attributeerror:

    _fromutf8 = lambda s: s

class ui_form(object):

    def setupui(self, form):

        form.setobjectname(_fromutf8("form"))

        form.resize(400, 300)

        self.retranslateui(form)

        qtcore.qmetaobject.connectslotsbyname(form)

    def retranslateui(self, form):

        form.setwindowtitle(qtgui.qapplication.translate("form", "form", none, qtgui.qapplication.unicodeutf8))

#main.py，可視化ui.py

from pyqt4 import qtcore, qtgui, qt

from ui import *

class mainwindow(qtgui.qmainwindow): 

    def __init__(self,parent=none):

        qtgui.qwidget.__init__(self,parent)

        self.ui=ui_form()

        self.ui.setupui(self)

        #視窗居中顯示

        desktop =qtgui.qapplication.desktop()

        width = desktop.width()

        height = desktop.height()

        self.move((width - self.width())/2, (height - self.height())/2)

        self.setmousetracking(true)

if __name__ == "__main__":

    import sys

    app = qtgui.qapplication(sys.argv)

    myapp=mainwindow()

    myapp.show()

    app.exec_()