Python/Tkinter: expanding fontsize dynamically to fill frame

Question

I know you can get frame widgets to expand and fill all of the area available to them in their container via these commands: frameName.pack(fill = 'both', expand = True)

What would do the same for a text's font size? Currently my text is an attribute of a label widget. The label widget's parent is frameName.

I guess I could define my own function to call labelName.config(fontsize = N) to update the font size as the frame get's bigger, but I'm not sure how to correlate them.

This is what my program looks like right now: Each of those blocks is a frame widget. I'd like the text to expand to fill up in some capacity the frame, and respond to resizing of the window as well.

Answer 1

You can use tkFont.font

When you initialize the label set the font to a variable such as:

self.font = SOME_BASE_FONT
self.labelName.config(font = self.font)

Then you can use:

self.font = tkFont.Font(size = PIXEL_HEIGHT)

This you can scale to the height of the label. You can bind a '<Configure>' Event to the widget, and make your callback function adjust the label size.

frameName.bind('<Configure>', self.resize)

def resize(self, event):
    self.font = tkFont(size = widget_height)

For more info see the documentation here.