another sort of listener (was: GUI work)

[Ben Abbott]

On Nov 25, 2008, at 5:51 PM, Michael Goffioul wrote:

> Think for instance about 3D-rotating a plot: you want the rotation  
> to follow
> your mouse seemlessly (without any delay). This rotation is typically
> performed by changing View property and redrawing. If you want  
> responsiveness,
> you'll do that in the GUI thread. Now, if there's a listener  
> attached to View
> property, this has to be run in the octave thread.


I thought I put in a plug for some needed functionality that is less  
sexy, but more directly applicable to Octave.

Many of the figure/axes/text/etc properties are in need of  
"listeners" ... if that is the proper way to describe it.

When the "units", "fontunits", "paperunits" are changed the respective  
values should be translated from the old units to the new units. The  
values needing attention are "position", "outerposition",  
"tightinset", "papersize", "paperposition", "extent", "fontsize", etc.

I have been working on having the gnuplot backend respect these  
properties, and keep hoping someone working on the new backend will  
get around to this.

If anyone is inclined to work on this, I can share the partial m-file  
solution I've been working with.

Ben