Lines need to be deselected before they're deleted, but new lines need
to be committed before they can be selected, so reorder things to
remove -> insert new line if needed -> commit -> update selection -> delete.
If the current frame is outside the bounds of the selected line, create
a duplicate of it at the current video frame. Otherwise, make the line
end on the previous frame and create a copy of it which starts on the
current frame (for split before).
For whatever reason this was sometimes being done after the commit,
which resulted in a lot of code only working by coincidence when the
grid commit handler happened to be the first one to be called.
It's quite rare to actually want a multi-frame line followed by a
single-frame line; in most cases they're either all a single frame (in
which case this behaves the same as it always has), or they're all
multi-line, in which case this should be more convenient.
The local docs it tries to open don't actually exists and if they're
ever added, the help contents command opens them anyway so I'm not sure
what the intended purpose of the command ever was.
If the script's matrix matches the video's matrix, use that even if
Force BT.601 is on, and if it's TV.601, use that even if Force BT.601 is
off.
This should mostly eliminate the common problems resulting from mixed
values of the Force BT.601 option.
Closes#1649.
For some reason the close event is getting sent multiple times and
them getting processed in the event loop for the confirmation dialog,
resulting in two dialogs.
Split int validating and double validating into two separate classes.
Make double parsing, validating and stringifying locale-aware. This is
far more complicated than it needs to be due to that Aegisub's locale
handling is a total mess.
Use DoubleValidator rather than wxFloatingPointValidator, because the
latter doesn't work with Aegisub's locale mess (on OS X it uses the C
locale for some things, and the locale reported by CoreFoundation for
others).
Closes#1568.
