import wx
import wx.lib.agw.speedmeter as SM

class MyFrame(wx.Frame):

    def __init__(self, parent):
    
        wx.Frame.__init__(self, parent, -1, "SpeedMeter Demo")

        speed = SM.SpeedMeter(self, agwStyle=SM.SM_DRAW_HAND|SM.SM_DRAW_SECTORS|SM.SM_DRAW_MIDDLE_TEXT|SM.SM_DRAW_SECONDARY_TICKS)

        # Set The Region Of Existence Of SpeedMeter (Always In Radians!!!!)
        speed.SetAngleRange(-pi/6, 7*pi/6)

        # Create The Intervals That Will Divide Our SpeedMeter In Sectors        
        intervals = range(0, 201, 20)
        speed.SetIntervals(intervals)

        # Assign The Same Colours To All Sectors (We Simulate A Car Control For Speed)
        # Usually This Is Black
        colours = [wx.BLACK]*10
        speed.SetIntervalColours(colours)

        # Assign The Ticks: Here They Are Simply The String Equivalent Of The Intervals
        ticks = [str(interval) for interval in intervals]
        speed.SetTicks(ticks)
        # Set The Ticks/Tick Markers Colour
        speed.SetTicksColour(wx.WHITE)
        # We Want To Draw 5 Secondary Ticks Between The Principal Ticks
        speed.SetNumberOfSecondaryTicks(5)

        # Set The Font For The Ticks Markers
        speed.SetTicksFont(wx.Font(7, wx.SWISS, wx.NORMAL, wx.NORMAL))
                                       
        # Set The Text In The Center Of SpeedMeter
        speed.SetMiddleText("Km/h")
        # Assign The Colour To The Center Text
        speed.SetMiddleTextColour(wx.WHITE)
        # Assign A Font To The Center Text
        speed.SetMiddleTextFont(wx.Font(8, wx.SWISS, wx.NORMAL, wx.BOLD))

        # Set The Colour For The Hand Indicator
        speed.SetHandColour(wx.Colour(255, 50, 0))

        # Do Not Draw The External (Container) Arc. Drawing The External Arc May
        # Sometimes Create Uglier Controls. Try To Comment This Line And See It
        # For Yourself!
        speed.DrawExternalArc(False)        

        # Set The Current Value For The SpeedMeter
        speed.SetSpeedValue(44)
    
    
# our normal wxApp-derived class, as usual

app = wx.PySimpleApp()

frame = MyFrame(None)
app.SetTopWindow(frame)
frame.Show()

app.MainLoop()