Switches some signal-slot connections to Qt::DirectConnection.
Now LMMS can handle loop points correctly and export samples without glitches.
Also tweaks some Mixer-related code to avoid related deadlocks on export.
Adjust Mixer::getPeakValues so client do not have to allocate the
variables that will store the peak values.
Adjust both existing clients: FxMixer and VisualizationWidget.
Default project when cancelling project loading
If a user isn't aware that the loading of a project has been
cancelled, it may be in an incomplete state. Saving such a project
will overwrite the original file and result in data loss. This is
solved by loading the default project on cancelling project loading.
Add Mixer::clearNewPlayHandles() to prevent crash when cancelling
loading of a single streamed instrument.
Removes some repeated calls to Qt's font layouting by using QStaticText
in FxLine and removing the overridden method ComboBox::sizeHint.
Unifies Mixer::peakValueLeft and Mixer::peakValueRight into
Mixer::getPeakValues so the array is only iterated once.
There is a new tool button that can be used to turn the metronome on and
off. Per default the metronome is turned off. When enabled the metronome
will during on song playback, pattern playback and BB playback. During
export it is ignored.
A new icon was added as well.
The state is currently stored in the Mixer. It might make sense to put
the metronome configuration in its own class in the future. The state is
currently not stored in the file but this might be a good choice for now
until a better place is found for the metronome data.
Also removed some repeated calls to Engine::getSong() and
Engine::fxMixer().
Well, this commit got a bit out of hand, what with 26 files changed. Oh well.
Basically, we're using the buffermanager to dispense temporary buffers for playhandles and audioports to use.
This allows us to change the way playhandles work. Earlier, playhandles of the same track were waiting in line
to push their output to the audioport. This was of course inefficient, so now they just register themselves to the port,
then the port handles mixing the buffers.
Caveat: this is still a work in progress, the vol/pan knobs on instruments are temporarily non-functional - will be fixed in
the next commit, but I have to get some sleep now.
Hyunjin Song