This moves the _amp from send to delivery (which already
applies gain for the master-bus normalization). This generalizes
the use of a gain stage for use in port-inserts.
Previously active Routes were retained until the end of
Session d'tor and not dropped during Session::destroy.
While most resources were explicitly cleaned up via DropReferences,
Processor UIs are kept around until the actual destructor runs.
Likewise some controllable are kept around while the GraphNode (Route)
owning it is not released.
* GTK fills in the snapshots in the background (using background threads
to test files).
* Actual colors may only available after the widget is realized (not
directly after ensure_style)
It can happen that with a scaling factor of 1.0, rubberband
produces slightly fewer samples than the original.
Region::set_length (region->length * 1.0) is idempotent and
does not shorten it as appropriate to the longest source
via Region::verify_length(), which leads to various issues.
* Allow to bundle presets
* Do not use /usr/[local] on Windows
(This may need further work, for Windows, since default user
presets are in `file://$HOME/.ladspa/rdf/`)
Much like the edit-tool and grid-types, clock-modes are UI state.
Saving the UI state separately allows them to be used
consistently for new sessions. Previously clock-modes were set
initially (at application start) and when loading sessions.
The clock modes of newly created sessions was different
depending on loading another session prior to creating the
session. This is now no longer the case.
Re-assigning a sigc::connection does not disconnect
any previously connected signals.
WindowProxy::setup may be called multiple times. Notably plugin
windows can change the managed _window (generic/custom), which
requires a call to setup.
The class now has two separate methods for setting a duration or a point
value. They MUST be used appropriately, because their behavior is different.
When ::set_duration() is used in timecode mode, an extent (inclusive-end
length) is shown rather than a length.
Some objects, such as the TimeInfoBox, now deliberately shown an inclusive end
for their "end" clock, but this not universally followed, pending more feedback
from users and investigating of conventions in other DAWs.
audio time nominally uses superclocks as its canonical unit. However
many things at a higher level only understand samples. If we
increment or decrement a superclock value by 1, the vast majority of
the time we will still get the same sample value after
conversion. Thus to correctly alter an audio time by an amount
that will manifest as 1 sample's difference, we have to use
samples_to_superclock(1)
