fix deadlock when updating audio/midi connection matrix
during session-close or on exit.
(Note: this still can cause a crash if the route goes away
while the iterator in the connection-matrix still has an index
of it)
- rework metric/tick image cache invalidation
- flush cache
- send signal to queue redraws
(TODO) selectively flush cache // cache per size, style
- add four common line up levels
Make download of sound files multi-threaded. Each sound file download takes
place in its own thread, and has its own progress bar and cancel button,
which stack up from the bottom of the list of results.
Sound files download into a file with a '.part' suffix, which is then
renamed to the intended name on success.
Add a 'Similar' button, which searches Freesound for sounds similar to the
currently-selected sound in the results list.
Add a freesound-download-dir config variable to decide the location
of sound files downloaded from Freesound.
Move Windows-specific logic to replace '/'s with '\'s from
Mootcher::changeWorkingDir() to Mootcher::ensureWorkingDir(), and remove
the now unused Mootcher::changeWorkingDir().
Use Glib::build_filename to construct paths.
Add constants for the keyboard modifiers that should be used for vertical
zoom, horizontal zoom, and horizontal scrolling in the main editor window,
and use these where appropriate rather than using Keyboard::PrimaryModifier
and friends directly.
Replace AU_STATE_SUPPORT compile-time define with NO_PLUGIN_STATE and make it prevent plugin state setting, preset loading, preset saving and plugin state saving. Blocks on these actions exist partially in the backend and partially in the GUI (this latter class are not absolute, and should OSC or MIDI be able to drive Plugin::save_preset() the block could be circumvented). Set NO_PLUGIN_STATE if --freebie is used at waf-configure time
