Re: [Texmacs-dev] qt TeXmacs is deadly slow

[Gubinelli Massimiliano]

Hi,
 due to limitations of the Qt API we are not able to reproduce  
exactly the TeXmacs-X11 fluid experience when typesetting require long  
computations (essentially I cannot probe for user-related events  
interrupting long computations). This is the case with very long  
documents while editing at the beginning. I'm studying possible  
workarounds.

Thanks for the report.
best
max


On 31 mars 11, at 09:49, Sam Liddicott wrote:

> With --enable-qt I'm finding teXmacs will go to 100% CPU for a  
> second or more when I do mild things like insert a blank line near  
> the beginning of a medium document. (Even with Document, Page, Type,  
> Automatic).
>
> The delay is the pagination changes, and is very short at the end of  
> the document.
>
> As an example, try importing this into TeXmacs: http://en.wikipedia.org/wiki/Gun_laws_in_the_United_States_%28by_state%29 
>  it is about 600K long in the html
>
> Pressing ENTER near the top of the page uses 100% CPU for about a  
> second, inserts the line and then paints a corrupt screen.
>
> I compiled non-qt and everything is great! (except the stinking file  
> dialogs).
>
> Does qt support non-event-loop based painting? (If that's the  
> problem)?
>
> Sam
>
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