I need to scroll a "line number" text widget and a "code" text widget simultaneously in an IDE I'm developing. How would I achieve this?
2 Answers
[EDITED] It's really easy to do this in Tcl, so I figured it had to be possible to get a Tkinter equivalent of the following Tcl procedure:
proc rollon {boxes args} { foreach box $boxes { eval {$box yview} $args } } After a few failed efforts, I came up with this, which works:
#!/usr/bin/env python3 from tkinter import * from tkinter import ttk root = Tk() def viewall(*args): global tx, tx2 eval('tx.yview(*args)') eval('tx2.yview(*args)') tx = Text(root, background='white', width = '20', height = '8') tx2 = Text(root, background='white', width = '20', height = '8') rolly = ttk.Scrollbar(root, orient=VERTICAL, command=viewall) tx['yscrollcommand'] = rolly.set tx2['yscrollcommand'] = rolly.set tx.grid(row=0, column=0, sticky=(N, W, E, S)) tx2.grid(row=0, column=1, sticky=(N, W, E, S)) rolly.grid(row=0, column=2, sticky=(N, W, E, S)) root.mainloop() Somebody who knows more Python than I do could probably figure out how to do this without listing the "yview" for each text widget separately, but this should get you going.
2 Comments
Bryan Oakley
You don't need to use
eval. Just call tx.yview(*args).
McClamrock
True. And since the occasions to use a huge number of multi-scrolling widgets will probably be very few, it may not be worth the effort of trying to find out how not to list each "yview" separately. For only two widgets, it wouldn't be worth more than the few seconds it takes to read this comment. :o)
My own solution, while not the best, was this: (Forgive the lack of context)
def scroller(self,*args):#Move me self.text.yview(*args) self.numb.yview(*args) def on_textscroll(self, *args):#Move me self.vsb.set(*args) self.scroller('moveto', args[0]) 1 Comment
Dvd848
A full example can be found here: stackoverflow.com/questions/32038701/…
yviewmethod of your two widgets?self.vsb=tk.Scrollbar(self,command=self.text.yview). But I do not see how I can set the same forself.numb(the line number widget) without removing the scroll onself.text.