QPainter and refresh window

[Atikae]

I use PyQt4 and I note that when I change something on a QPainter (example : when I draw a point at different positions), I need to move my mouse (or do some other actions) ON the window if I want to see the modifications.

Exemple :

from socket import WiiSocket
from general import main
import threading
import sys
from PyQt4 import QtGui
import time
 
 
class WiiButtons:
    buttons = {"Up" : False,
               "Down" : False,
               "Left" : False,
               "Right" : False,
               "Plus" : False,
               "Minus" : False,
               "Home" : False,
               "One" : False,
               "Two" : False,
               "A" : False,
               "B" : False
               }
 
    def parse(self, data):
        if data[:5] != "A1 30":
            return
 
        data = data[6:].split()
        self.buttons["Left"] = bool(int(data[0],16)&0x01)
        self.buttons["Right"] = bool(int(data[0],16)&0x02)
        self.buttons["Down"] = bool(int(data[0],16)&0x04)
        self.buttons["Up"] = bool(int(data[0],16)&0x08)
        self.buttons["Plus"] = bool(int(data[0],16)&0x10)
        self.buttons["Minus"] = bool(int(data[1],16)&0x10)
        self.buttons["Home"] = bool(int(data[1],16)&0x80)
        self.buttons["One"] = bool(int(data[1],16)&0x02)
        self.buttons["Two"] = bool(int(data[1],16)&0x01)
        self.buttons["A"] = bool(int(data[1],16)&0x08)
        self.buttons["B"] = bool(int(data[1],16)&0x04)
 
    def current(self):
        return self.buttons
 
 
if __name__ == "__main__":
 
    class MyWidget(QtGui.QWidget):
 
        x = 0
        y = 0
 
        def paintEvent(self, QPaintEvent):
            painter = QtGui.QPainter(self)
            painter.drawPoint(self.x, self.y)
 
 
    def get_info(handler, widget):
        buttons = WiiButtons()
 
        x = 300
        y = 300
 
        while handler.state == True:
 
            data = handler.receive(32)
            if len(data):
                buttons.parse(data)
            if buttons.current()["Up"]:
                widget.y -= 1
                widget.repaint()
                print "Up"
            if buttons.current()["Down"]:
                widget.y += 1
                widget.repaint()
                print "Down"
            if buttons.current()["Left"]:
                widget.x -= 1
                widget.repaint()
                print "Left"
            if buttons.current()["Right"]:
                widget.x += 1
                widget.repaint()
                print "Right"
 
 
    wiimote = main()
 
    app = QtGui.QApplication(sys.argv)
    widget = MyWidget()
    widget.resize(600, 600)
    window = QtGui.QMainWindow()
    window.setCentralWidget(widget)
    window.show()
    thread = threading.Thread(None, get_info, None, (wiimote,widget))
    thread.start()
    app.exec_()

from socket import WiiSocket
from general import main
import threading
import sys
from PyQt4 import QtGui
import time


class WiiButtons:
    buttons = {"Up" : False,
               "Down" : False,
               "Left" : False,
               "Right" : False,
               "Plus" : False,
               "Minus" : False,
               "Home" : False,
               "One" : False,
               "Two" : False,
               "A" : False,
               "B" : False
               }
    
    def parse(self, data):
        if data[:5] != "A1 30":
            return
            
        data = data[6:].split()
        self.buttons["Left"] = bool(int(data[0],16)&0x01)
        self.buttons["Right"] = bool(int(data[0],16)&0x02)
        self.buttons["Down"] = bool(int(data[0],16)&0x04)
        self.buttons["Up"] = bool(int(data[0],16)&0x08)
        self.buttons["Plus"] = bool(int(data[0],16)&0x10)
        self.buttons["Minus"] = bool(int(data[1],16)&0x10)
        self.buttons["Home"] = bool(int(data[1],16)&0x80)
        self.buttons["One"] = bool(int(data[1],16)&0x02)
        self.buttons["Two"] = bool(int(data[1],16)&0x01)
        self.buttons["A"] = bool(int(data[1],16)&0x08)
        self.buttons["B"] = bool(int(data[1],16)&0x04)
        
    def current(self):
        return self.buttons

        
if __name__ == "__main__":
    
    class MyWidget(QtGui.QWidget):
        
        x = 0
        y = 0
        
        def paintEvent(self, QPaintEvent):
            painter = QtGui.QPainter(self)
            painter.drawPoint(self.x, self.y)
            
    
    def get_info(handler, widget):
        buttons = WiiButtons()
        
        x = 300
        y = 300
        
        while handler.state == True:
            
            data = handler.receive(32)
            if len(data):
                buttons.parse(data)
            if buttons.current()["Up"]:
                widget.y -= 1
                widget.repaint()
                print "Up"
            if buttons.current()["Down"]:
                widget.y += 1
                widget.repaint()
                print "Down"
            if buttons.current()["Left"]:
                widget.x -= 1
                widget.repaint()
                print "Left"
            if buttons.current()["Right"]:
                widget.x += 1
                widget.repaint()
                print "Right"
                    
            
    wiimote = main()

    app = QtGui.QApplication(sys.argv)
    widget = MyWidget()
    widget.resize(600, 600)
    window = QtGui.QMainWindow()
    window.setCentralWidget(widget)
    window.show()
    thread = threading.Thread(None, get_info, None, (wiimote,widget))
    thread.start()
    app.exec_()

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I guess there is a function or other things for refresh window automatically.

Thanks.