Rather than everything having to separately commit changes to the ass
and then tell the subs grid to notify various parts of Aegisub about the
changes, committing the AssFile now triggers an event which objects
listen for.
AssFile::Commit now also has an argument to indicate what sorts of
changes were made to the file. For now these types are very broad.
Originally committed to SVN as r4901.
Make the undo and redo stacks non-static members of AssFile, making it
theoretically possible to have multiple open AssFiles with working undo.
Slightly improve tracking of whether the file is modified: saving,
making a change, then undoing the change now results in the file being
shown as unmodified as with most programs with undo.
Add basic undo coalescing support.
Originally committed to SVN as r4667.
* Sort wx headers and wrap with #ifndef WX_PRE.
* Add missing heade rto stdwx.h.
M src/ass_attachment.h
M src/subs_grid.cpp
M src/ass_dialogue.cpp
M src/ass_attachment.cpp
M src/aegisub_endian.h
M src/audio_display.cpp
M src/audio_karaoke.cpp
M src/dialog_kara_timing_copy.cpp
M src/ass_dialogue.h
M src/text_file_writer.cpp
M src/stdwx.h
Originally committed to SVN as r3503.
