wx.Gauge is a widget that is used, when we process lengthy tasks. It has an indicator to show the current state of a task.
import wx
TASK_RANGE = 50
class Example(wx.Frame):
def __init__(self, *args, **kw):
super(Example, self).__init__(*args, **kw)
self.InitUI()
def InitUI(self):
self.timer = wx.Timer(self, 1)
self.count = 0
self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
pnl = wx.Panel(self)
vbox = wx.BoxSizer(wx.VERTICAL)
hbox1 = wx.BoxSizer(wx.HORIZONTAL)
hbox2 = wx.BoxSizer(wx.HORIZONTAL)
hbox3 = wx.BoxSizer(wx.HORIZONTAL)
self.gauge = wx.Gauge(pnl, range=TASK_RANGE, size=(250, 25))
self.btn1 = wx.Button(pnl, wx.ID_OK)
self.btn2 = wx.Button(pnl, wx.ID_STOP)
self.text = wx.StaticText(pnl, label='Task to be done')
self.Bind(wx.EVT_BUTTON, self.OnOk, self.btn1)
self.Bind(wx.EVT_BUTTON, self.OnStop, self.btn2)
hbox1.Add(self.gauge, proportion=1, flag=wx.ALIGN_CENTRE)
hbox2.Add(self.btn1, proportion=1, flag=wx.RIGHT, border=10)
hbox2.Add(self.btn2, proportion=1)
hbox3.Add(self.text, proportion=1)
vbox.Add((0, 30))
vbox.Add(hbox1, flag=wx.ALIGN_CENTRE)
vbox.Add((0, 20))
vbox.Add(hbox2, proportion=1, flag=wx.ALIGN_CENTRE)
vbox.Add(hbox3, proportion=1, flag=wx.ALIGN_CENTRE)
pnl.SetSizer(vbox)
self.SetSize((300, 200))
self.SetTitle('wx.Gauge')
self.Centre()
self.Show(True)
def OnOk(self, e):
if self.count >= TASK_RANGE:
return
self.timer.Start(100)
self.text.SetLabel('Task in Progress')
def OnStop(self, e):
if self.count == 0 or self.count >= TASK_RANGE or not self.timer.IsRunning():
return
self.timer.Stop()
self.text.SetLabel('Task Interrupted')
def OnTimer(self, e):
self.count = self.count + 1
self.gauge.SetValue(self.count)
if self.count == TASK_RANGE:
self.timer.Stop()
self.text.SetLabel('Task Completed')
def main():
ex = wx.App()
Example(None)
ex.MainLoop()
if __name__ == '__main__':
main()
