Angus Leeming wrote:
> We're talking about /exactly/ the same thing.
Well I said I have the impression when I read your last post ;)
> I /want/ to invoke startLoading() from within Inset::draw.
>
> I /do not want/ to do it without a little care.
>
> I envisage something like:
>
> Image::startLoading(Inset * inset) {
> // call REALLYstartLoading(inset) in 2 secs time
> startTimer(2, inset REALLYstartLoading)
> }
>
> Image::REALLYstartLoading(Inset * inset) {
> if (!inset->isVisible())
> return;
>
> // load it
> ..
> }
>
> Similarly in BufferView::updateInset(Inset * inset) {
> if (!inset->isVisible())
> return;
>
> inset->draw();
> }
What I miss in all this is the "rebreaking" where would you
put that here?
> So, my question again. What's the equivalent of "Inset::isVisible()". I /do/
> know the BufferView.
Ok. No we don't have a isVisible function right now and I don't think
this is easy to make as the "visibility" depends on the x,baseline
values passed as parameters to draw, which could change if I have to
rebreak the text after the loading. You could have a look at the
tabular.C or insettext.C draw functions. I just draw the visible
parts there, but for a graphics file with a fixed hight it could
be as easy as "if baseline+graphics_height > 0 then draw".
> You know, /if/ there were such a method or way of ascertaining this
> information, then BufferView::updateInset() should also use it to not redraw
> things that aren't visible. That would stop all those "the cursor jumps all
> over the place as the graphics insets are loaded" problems that people moan
> about now.
>
> void BufferView::updateInset(Inset * inset) {
> if (!inset->isVisible())
> return;
>
> inset->draw();
> }
I don't think we can do this.
> Capito?
Sure I hope you too.
Jug
P.S.: Is it only an impression or do I get mail doubled again :)
--
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