Support VCA and track grouping parameters

[helgoboss]

From ChocolateHawkins:

Another issue I've noticed with Realearn is when I map to a VCA master fader, the VCA follow functions (fader, solo, mute, etc.) do not work.

[helgoboss]

I think this needs to be implemented manually by evaluating GetSetTrackGroupMembership. Could be easier to do when implementing #4 by providing the foundation to allow resolving to multiple targets at once.

[helgoboss]

It works for record arm already, maybe for some other things as well?

[TheMiscreant]

From ChocolateHawkins:

Another issue I've noticed with Realearn is when I map to a VCA master fader, the VCA follow functions (fader, solo, mute, etc.) do not work.

To add a detail: it'd be nice to bypass grouping by holding down 'SHIFT' when toggling a parameter via ReaLearn.

[helgoboss]

Status quo

Legend:

• "no" = it doesn't work yet
• "yes" = it works already

Leads:

• Volume (CSurf_OnVolumeChangeEx denying gang)
  • In general: no
  • Reverse volume: no
• Pan (CSurf_OnPanChangeEx denying gang)
  • In general: no
  • Reverse pan: no
• Width (CSurf_OnWidthChangeEx denying gang)
  • In general: no
  • Reverse width: no
• Mute (CSurf_OnMuteChangeEx denying gang + CSurf_SetSurfaceMute notifying all): yes
• Solo
  • In-place (GetSetMediaTrackInfo + CSurf_SetSurfaceSolo notifying all): no
  • Ignore routing (GetSetMediaTrackInfo + CSurf_SetSurfaceSolo notifying all): no
  • Use REAPER preference (CSurf_OnSoloChangeEx denying gang + CSurf_SetSurfaceSolo notifying all): yes
• Polarity/Phase (SetMediaTrackInfo_Value): no
• Record Arm (CSurf_OnRecArmChangeEx denying gang): yes
• Automation Mode (SetTrackAutomationMode): yes
• VCA (see volume): yes

Options:

• Do not lead when following: yes (works for all leads with "yes")

Findings:

• GetSetMediaTrackInfo or SetMediaTrackInfo_Value of course doesn't respect track grouping stuff (that was clear already)
• Additional CSurf_SetSurface* function calls don't have any effect on track grouping
• CSurf_On*ChangeEx function calls which deny gang respect track grouping only for on/off-style things (solo, mute, record arm)
• CSurf_On*ChangeEx function calls which allow gang respect track grouping always!

Solution:

• For volume, pan and width: Add a checkbox to respect track grouping (internally allows gang, off for old presets, by default off)
• For mute, arm, solo (use REAPER preference)
  • Ask Justin why calling the CSurf_On*ChangeEx functions with denying gang still invokes track grouping. Maybe a bug?
  • If there's a way to disrespect track grouping, add a checkbox to respect it (on for old presets, by default off)
• For phase, solo (in-place, ignore routing): Ask Justin if there's a way to respect track grouping. Maybe temporarily change REAPER preference?
  • If there's a way to respect track grouping, add a checkbox to respect it (off for old presets, by default off)

[helgoboss]

I renamed this to "Support track grouping parameters" because VCA works already!

[helgoboss]

I added a "Respect track grouping" and "Selection ganging" checkbox to all relevant targets.

One limitation: Volume, pan and width targets can respect track grouping only if selection ganging is also enabled.