On Thursday 12 December 2002 6:13 pm, Bo Peng wrote: > On Thu, Dec 12, 2002 at 06:01:22PM +0000, Angus Leeming wrote: > > The idea is that these previews are exactly the same size as the > > surrounding text. So, change your zoom, close the document and open it > > again. You could also try changing the preview_scale_factor (default > > value of 0.9). > > Thanks. The bitmaps are correct after close/open. Anyway, it would > definitely be better if the bitmaps are regenerated after a preference > zoom change. I would suggest it as a minor feature enhancement.
That won't happen any time in the near future. Certainly not before 1.3 is released and probably not after either. Unless you do the work of course ;-) > Two problems exists though: > > 1. After I load a document, instant preview seems to be running > underground so I can type in words etc. After a while, when the > bitmaps are generated, the screen freeze for more than 5 seconds when > being refreshed. This is for a one page document with around 100 math > symbols. I do not know what will happen to a document with hundreds > of formula. Umm. Each latex snippet is stored in a separate file. We load them on demand. Ie, only the bitmap for a formula that is visible is loaded. Presumably that's no more than 10 files to a page. That shouldn't cause too much of a blockage. So, I conclude that a document with hundreds of formulae will behave just as well/badly as your current document. Each time you go to a new part of the document, the appropriate bitmaps will be loaded and you'll get some small blockage. It certainly shouldn't be for 5 secs though. Perhaps you could run a profiler on the code to see where the block is occurring? (I have no such problems here.) > 2. When I tried to see what will happen if I change zoom values, I > encountered unpredictable crashes. What I did was: > open a document, after the instant preview is displayed, preference > -> font -> zoom. Change it to 500, apply, change it to 550, apply. > After on average 2-5 changes, lyx will crash. Backtrace please. Angus
