Add max_title_length to TabBarData

[alaricljs]

I'd like to see max_title_length added to TabBarData and draw_title().eval_locals so that tab_title_template's can contain formatting like: {title:<{max_title_length}} which would achieve full width tab options with no user implemented code.

1 tab:

2 tabs (right active):

3 tabs (middle active)

tab_bar_edge top
tab_bar_margin_width 2.0
tab_bar_margin_height 5.0 2.0
tab_bar_style separator
tab_bar_align center
tab_bar_min_tabs 1
tab_separator ""
tab_title_template "{fmt.fg.red}{bell_symbol}{activity_symbol}{fmt.fg.tab} {title:<{max_title_length-2}} "
active_tab_title_template "\x1b[4:1m{fmt.fg.red}{bell_symbol}{activity_symbol}{fmt.fg.tab} {title:<{max_title_length-2}} \x1b[4:0m"
active_tab_foreground   #268bd2
active_tab_background   #002b36
active_tab_font_style   bold
inactive_tab_foreground #fdf6e3
inactive_tab_background #073642
inactive_tab_font_style normal

Yes, I know - do it myself and send a PR. Tonight I head to the hospital for unknown days, so maybe someone else does it before I get back?

[kovidgoyal]

0ce2a23

[kovidgoyal]

0ce2a23