[gl2ps] Font Changes

[Shai Ayal]

Hi

first, thank you for the alignment code. Now OctPlot's hardcopy is 
in-par with it's screen output (not very nice, but it works :) ).

My future plans are to implement TeX like support. This means the I will 
have to change font/size in the middle of a string. Do you have any 
ideas on how this could be implemented in gl2ps? I understand that 
currently gl2ps has no knowledge of the font metrics, all is done by the 
ps/pdf/tex parser. Can you think of any way to implement this (i.e. 
gl2psText returning the new raster position?).

The easiest way I can think of (easy for gl3ps) is add a 
gl2psRawPS(char*) function which will allow you to emit raw postscript 
at the current raster position. This approach has a major drawback: It 
will break the abstraction of gl2ps in respect to which back-end is used.

I am eager to hear your thoughts on this

	Shai