FontConfig makes Aegisub freeze on OS X while caching.

[verm]

There needs to be a progress meter or atleast a dialogue that lets the user know FontConfig is currently caching fonts. This only happens when the cache is initialised after that it's quick.

[verm]

Set to block and change to milestone:2.2.0 We could probably avoid doing it but I'm sure we'll get a LOT of bug reports about "freezing".

[verm]

Move ticket to milestone:2.2.0 as milestone:2.1.7 became a windows-only maintenance release.

[verm]

(In [3176]) Update to 9ad13b from the libass git repo. ( http://greg.geekmind.org/viewgit/) This change also includes the ability to split off fontconfig cache updating into it's own step so dialogues can be used to warn the user about the font cache being updated (it can take several mins on slow machines with lots of fonts). Updates #841

[verm]

This needs to be done for milestone:2.1.8

[verm]

(In [3869]) Add a stub message so it gets translated, we haven't figured out what we're going to do about this yet. I forgot to commit this before r3861, the string got in but not the source change. updates #841.

[nielsm]

Non-working initial patch to add this dialogue

[nielsm]

I attached the initial patch I wrote in blind to address this issue. It doesn't work in this state and needs a bunch of fixing.

[nielsm]

Semi-working patch (builds and mostly works)

[nielsm]

Attached a new patch that at least almost solves the issue. The updating does happen in the background and the dialogue does show if it takes more than a short while.

Problem is that the dialogue is not modal at all, and also it doesn't centre on the screen as it should.

[nielsm]

(In [3941]) Mostly-working "please wait" dialogue while FontConfig updates font caches in libass.
This is patch 2 but with trace printf's removed.
Updates #841.

[nielsm]

What's blocking this ticket from being closed:

The dialogue box is not modal, at all.
The user can interact with the main UI while the dialogue is up and fonts are being cached, essentially in the middle of another operations. This can potentially cause serious re-entrancy failures.

[verm]

(In [3998]) Completely block the UI while Font Config is caching on OS X. This is a bit a hack and a better solution should be found. A new ticket should be opened for that.
Updates #841.

[nielsm]

Created #1115 calling for a better solution.
Closing this for 2.1.8.