This command commits the current line, advances to the next line (even
if Auto Next on Commit is disabled), and resets the next line's time to
the default timing as if the next line was zero-timed. Add a default
hotkey of Shift-G, but don't bother with a toolbar button for now as
demand for this turned out to be fairly low.
Closes#946.
Originally committed to SVN as r6720.
The hotkey should only be Ctrl-J on OS X (where Ctrl-G is taken by Find
Next), but platform-specific hotkeys aren't implemented yet.
Originally committed to SVN as r6301.
Continue moving all the reordering commands to grid (why were they in
three different categories?), and change swap to move to better reflect
what they do.
Originally committed to SVN as r6287.
Convert all coordinates within the visual tools to Vector2D, which has
been significantly extended. Eliminates a lot of issues with accumulated
rounding errors and simplifies a lot of code.
Modernize the visual tools' interactions with the rest of Aegisub by
connecting to signals directly rather than routing everything through
the video display and converting the main visual tool mode toolbar to
the command system.
Extract all references to OpenGL from the visual tools and move them to
OpenGLWrapper as a first step towards making it possible to implement an
alternative video renderer. In the process, eliminate all uses of OpenGL
immediate mode.
Fix a bunch of minor issues and general instability.
Originally committed to SVN as r5823.
