CODEWITHSUNDEEP
tkintertk-toolkit
Suresh Subedi
Suresh Subedi

Reputation: 710

Is it possible to convert tkinter text index to coordinates?

I know it is possible to convert coordinate to index in a tkinter Text widget. But is the opposite also possible?

Basically I want to find out if the mouse coordinate, while the mouse-button is being pressed, is before or after the coordinate of index "10.end" (for example).

Line number can be anything. As mouse is being pressed and not yet released, I can't use current.

Upvotes: 1

Views: 542

Answers (1)

Bryan Oakley
Bryan Oakley

Reputation: 386010

If you are comparing whether the mouse is over a character before or after another, you don't need to convert an index to a coordinate to do what you want. You can directly compare an index with the x,y coordinates of the event:

def on_motion(event):
    event.widget.compare("@%s,%s" % (event.x, event.y), "10.end")
...
text = tk.Text(...)
text.bind("<B1-Motion>", on_motion)

If you are trying to compare if the mouse is to the left or right of another character (regardless of the y coordinate), your only choice is to get the x,y of the character and do the compare yourself.

To do that you can use the bbox method of the text widget to get the bounding box in pixels of a specific index. You will get back the x/y of the upper left corner of the index, along with the width and the height. You can then compare the x coordinate of the event with the x coordinate of the index.

Upvotes: 2

Related Questions