... it's either the source of the connection that is being destroyed, or other
object (such as an ancestor window) transitively owning it and so causing it to
be destroyed too;
or, the sink is being destroyed, and that sink is a wxEvtHandler (which is
always so for Disconnect, though not for Unbind in case Bind was passed a
member function of a non-wxEvtHandler).
wxWidgets takes care of erasing the connection in such cases.
This removes most calls to Disconnect and Unbind. Many destructors shrank to
nothing.
Notably, in case of popup menu handling, the call to Disconnect is not removable
because the object being destroyed is neither the source nor the sink.
... Being careful not to use operator == on a default-constructed
std::list::iterator, which violates assertions in the MSVC libraries.
This reverts commit 7fb5ec4b7ab4f9302bd94446db86924cd2b8d67f.
... and require qualified name access to use the underlying std::list iterators
that return shared_ptr to Track.
Which should not be done very much outside of class TrackList, but a few
places need it.
... Maybe a good feature idea, but the implementation pollutes the code in
too many places.
It's a special case of the more general idea of many-to-one associations
between screen rectangles and track objects. More generalized ways to
accommodate that should be sought.
... This even makes it possible to remove the prohibition of undo and redo
during transport, not that we want to though. Playback and recording will
continue, using track objects that might not be in the current project.
... As they did with Ctrl+Shift+F, with a certain minimimum number of wave
tracks that depends on screen resolution. On my Macbook, that was 13 tracks.
This bug was a consequence of James' TCP layout changes making buttons a little
taller plus my changes to hide any top controls for which there is not
sufficient height.
The fix makes the height of tracks after Ctrl+Shift+F a bit more (44 pixels
not 40) than in 2.1.3.
This fix also replaces some more "magic numbers" with calculation from
tabled data about TCP layout.
...no actions reimplemented to them yet.
Later commits will move special cases one at a time from TrackPanel, preserving
all click and drag capabilities at each step. With a few exceptions, but those
lost abilities are restored in yet later commits. (Ctrl+Click on the Label
track being one.)
