Hi guys. I have an idea to contribute with Rosegarden. I am not sure 
about how to implement it, neither if there are some parts of it 
implemented at all (I couldn't find anything like it as of Rosegarden 
1.6.1 - in ubuntu studio).

The main idea is to have a widget to control plugin parameters 
automatically, drawing a line in an associated track, something like the 
timer rule. 'Cause I want to control not only the tempo, but things like 
an oscillator frequency, filter cut frequencies, etc
*
***Some things I've been thinking about implementation: create a new 
Ruler Widget, maybe derived from TimerRuler, that can be embedded into a 
track. This widget would be linked to any LADSPA or DSSI plugin within 
this track, and, maybe trough a controller class, change the desired 
parameter based on the y-value of the drawn line.
This feature is present in proprietary programs like logic and cubase, 
as far as I know, and I really miss it since I moved to RG*.***

I'd be glad if someone had more insights about it. I really like this 
software and may help on the Qt4 porting, but first I want to get used 
to the source code and implementing this idea might be a good way.

rodrigo

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