wxPython Status Bar - adjust to length of string

[jlm699]

This is a simple one guys... I just want the last field of a status bar to adjust based on the length of the text contained within. I was using the example from the wxPython status bar demo where there is a timer in the last field, however on some systems with higher resolution the timer's minutes and seconds are cut-off. I tried adjusting the statusbarwidths to the length of the string, but this obviously won't work because that length is not in pixels. Here's my update function:

    # This is the timer's update function
    def Notify(self):
        t = time.localtime(time.time())
        st = time.strftime(" %b %d, %Y  %I:%M:%S", t)
        self.SetStatusWidths([-4, -2, 17, len(st)])
        self.SetStatusText(st, 3)
 

And then this next part can be put into any wx.Frame

        self.sb = self.CreateStatusBar(4)
        self.sb.SetStatusWidths([-4, -2, 17, 150])
 

So my question is basically is there a way to convert from len(str) into the pixels required to display len(str) ?

Thanks in advance

[bartonc]

So my question is basically is there a way to convert from len(str) into the pixels required to display len(str) ?

I've seen this once, but can't find it at the moment. It goes something like the:

f = window.GetFont()
dc = wx.WindowDC(window)
dc.SetFont(f)
width, height = dc.GetTextExtent("Text to measure")

By "window", I mean the widget that will get the text.

[jlm699]

I've seen this once, but can't find it at the moment. It goes something like the:

f = window.GetFont()
dc = wx.WindowDC(window)
dc.SetFont(f)
width, height = dc.GetTextExtent("Text to measure")

By "window", I mean the widget that will get the text.

Once again BartonC saves the day! Thanks a bunch, that code worked flawlessly with only one minor thing.

Since this is in a status bar and the text is at the end of the status bar, it gets cut off by the window resize 'grabber area' (if that makes any sense). See I have a date/time display in the last field of my status bar... so as I update the text I adjust the size of that last field with the following code:

    # This is the timer's update function
    def Notify(self):
        t = time.localtime(time.time())
        st = time.strftime(" %b %d, %Y  %I:%M:%S", t)
        self.SetStatusText(st, 3)
        f = self.sb.GetFont()
        dc = wx.WindowDC(self.sb)
        dc.SetFont(f)
        width, height = dc.GetTextExtent(st)
        self.sb.SetStatusWidths([-4, -2, 17, width + 30])
 

I know it's not a very good idea to just use an assumed size of 30 for that little box in the corner, but it works on the systems that used to get cut off and looks the same on the systems that never had the problem in the first place so; success!!

Thanks again to BartonC, the Forum Rock Star.