stefan

fix argc check in xschem setprop wire command

add "xschem setprop wire n tok val" command to add/change wire attributes via CLI

fix: xschem setprop instance <tok> <val> did not set schematic to modified state, so following xschem save did not work

show default values (1.0) in graph dialog box if attributes xlabmag, ylabmag and legendmag are not set

use attribute legendmax also for horizontal signal name legend (instead of xlabmag)

proc graph_edit_properties: add another row of buttons, added legend text size textbox, separated from y label text size

vlegend: better display of node measures (cursor-A): under signal name instead of to the right. If vlegend is enabled reduce top y margin.

fix View->Toggle variable line width menu command not working, add "xschem set line_width n", equivalent to "xschem line_width n", these commands now update the tcl var line_width.