Re: maximing/resizing multiple x11: change of palette

[Ethan M. <merritt@u.washington.edu>]

On Monday 16 August 2004 01:50 am, Petr Mikulik <mi...@ph...> wrote:
> There is a bug in the color palette treatment in the X11 terminal: when
> using multiple X11 terminals, window redraw (requested e.g. by a window
> manager) will change its palette.
> 
> Is it possible to fix it?

I am not very familiar with this, and I may have it wrong.
But It looks to me that the PM3D code would have to be re-written.

As it is, gnuplot_x11 only maintains two GC (= "Graphics Context")
structures. One of these is used for PM3D operations, and the other
is used for everything else.   There is not currently any notion of
keeping a separate GC for each plot window.  So if you redefine
the PM3D GC to use a different palette, it affects all PM3D operations
in all windows.

I imagine it would be possible to create a new GC for each window,
but I am not sure what pitfalls that would expose.

I believe that Johannes Zellner wrote this code, so maybe he has
some insight into the issue.

Otherwise, maintaining per-window information is related to code
that Daniel Sebald added recently, so he might be interested in 
experimenting with this.

-- 
Ethan A Merritt       merritt@u.washington.edu
Biomolecular Structure Center
Mailstop 357742
University of Washington, Seattle, WA 98195