Thank Michael you for your answer, I am trying to simplify the calls to Tk but I didn't manage much. BTW I saw that IDLE has a very nice and fast highlighting but I didn't understand the way. I see that somehow it overrides the insert and delete function of the Text (not of the subclass) with a register function and applies the highlighting from there. (ColorDelegator.py and Percolator.py)
V. ________________________________________ From: Tkinter-discuss [tkinter-discuss-bounces+vasilis.vlachoudis=cern...@python.org] on behalf of Michael Lange [klappn...@web.de] Sent: 26 August 2014 10:34 To: tkinter-discuss@python.org Subject: Re: [Tkinter-discuss] Text() highlight On Mon, 25 Aug 2014 14:15:59 +0000 Vasilis Vlachoudis <vasilis.vlachou...@cern.ch> wrote: > Hi all, > > I am trying to implement a small g-code editor and real time viewer in > tkinter. I am using the Text() widget as an editor, but I have troubles > in highlighting the text during editing. Its slow when editing big > files. (...) I don't have much experience with the text widget's advanced capabilities, so I can just give a general hint on how to speed up repeating tasks in Tkinter. In my experience calls to Python commands are usually fast enough, the bottleneck is the calls to Tk, though I am not sure if this is because Tk is slow in itself or if it is the mechanism of the Tcl interpreter that is somehow "embedded" into Python that makes things slow. So as a rule of thumb I suggest that if you want to speed up things I would try to eliminate as many of the calls to Tkinter widgets from the repeating routine as possible. If you want to track down which of these calls are particularly time expensive sometimes it proved useful to add some calls to time.time() to measure the duration a particular command took. So my suggestion is to see, if you can store some of the information about the tags that you query in your highlight() routine again and again e.g. with the text widgets search() or compare() methods in a python list or dictionary and access the information from there. This might complicate parts of the code but will probably result in a remarkable speed-up of your routine. Regards Michael .-.. .. ...- . .-.. --- -. --. .- -. -.. .--. .-. --- ... .--. . .-. Kirk to Enterprise -- beam down yeoman Rand and a six-pack. _______________________________________________ Tkinter-discuss mailing list Tkinter-discuss@python.org https://mail.python.org/mailman/listinfo/tkinter-discuss _______________________________________________ Tkinter-discuss mailing list Tkinter-discuss@python.org https://mail.python.org/mailman/listinfo/tkinter-discuss
