I don't know if this is the same problem we ran into many years ago, but it
goes something like this:
To the best as I could figure out, the problem mostly appears when you have
defined more than one RGBA color parameter (4 parameters of type siFloat) into
a RGBA color widget. Any parameters defined in the custom property after that
point will not respond to multi-selection behaviors. My workaround was to put
the color parameters last in the custom property's _Definition() callback.
The 2nd part of the workaround is how you read parameters inside of a callback.
Softimage does have a few bugs here or there that I found many years ago and
reported, but as far as I could tell they were fixed in 2012 SP1. Anyway, how
you pull parameters inside the callback is important.
Example: The typical syntax to get access to a custom property and it's
parameters from inside an _OnClicked() or _OnChanged() parameter callback is
something like this (Jscript):
Parameter_OnChanged()
{
var oCustomProperty = PPG.Inspected.Item(0);
var oParameters = oCustomProperty.Parameters;
var ParameterValue = oParameters( "parametername" ).value;
...
}
The key part of the whole equation is the first line. In this example it pulls
the first custom property in the inspected list. If you want to consider all
custom properties being inspected, you must iterate through the InspectItems
collection and treat them one at a time.
Matt
From: [email protected]
[mailto:[email protected]] On Behalf Of Bradley Gabe
Sent: Thursday, May 10, 2012 12:03 PM
To: [email protected]
Subject: Custom PPG's do not work with Multi Selection?
I've noticed this before, and now it's happening with a custom tool kit I've
been developing.
I have a simple Custom PPG defined in a self installing plugin and am applying
it to multiple objects in the scene. However, if I multi-select the objects,
the PPG doesn't show up at the top of the selection explorer.
If I open the PPG on one of the objects, then multi select other objects with
the same custom property, the title bar of the PPG reads "[multi]", but none of
the multi selection features work... if I edit a parameter, it only affects the
first item in the selection.
What gives? Is there a way to construct the PPG in order to avoid this
behavior? I really need them to work in multi-selection mode!
-B
