On Monday 15 July 2002 4:45 pm, Jean-Marc Lasgouttes wrote:
> >>>>> "Angus" == Angus Leeming <[EMAIL PROTECTED]> writes:
>
> Angus> I thought I'd address the bug "LyX doesn't update the image on
> Angus> screen if I update the external graphics file".
>
> Angus> I envisage something as simple as (below) but don't know how to
> Angus> check the timestamp of a file. I don't suppose piping `ls -l
> Angus> file` through sed is the way forward!
>
> Angus> Can anybody help?
>
> I guess FileInfo does everything you want.
Super, JMarc. I guess that this would do the trick:
FileInfo finfo(file);
time_t const timestamp = finfo.getModificationTime();
if (timestamp != stored_timestamp) {
stored_timestamp = timestamp;
// reload graphic
...
timer.restart();
}
> Note however, that other parts of lyx rely on crc instead. You might
> want to do that same for consistency.
I plead great ignorance. how efficient is crc? Would there not be a big
performance penalty if I used lyx::sum(file) every time I poled the file?
(Every couple of seconds...)
Angus
