Mark some methods as private.
Remove 'len' member of scrollBar_t and compute it on demand.
Move scrollbar GCs and scrollbar_show_* from rxvt_term to scrollBar_t.
Make scrollbar_{resize,mapping,show} methods of scrollBar_t.
Move update of style dependent data from resize_scrollbar to a new method.
Make scrollbar_{minheight,size} methods of scrollBar_t.
Move defines at the top.
Make scrollbar_TotalWidth a method of scrollBar_t.
Make setup_scrollbar a method of scrollBar_t.
Add enum for scrollbar states and remove methods/macros to set/check it.
Replace scrollbar {up,dn}Button macros with methods.
Name scrollbar struct and remove typedef.
Move leftptr_cursor from rxvt_term to scrollBar_t.
Revert 2007-12-29 change and move scrollbar_len from rxvt_term to scrollBar_t.
Remove pointless macro.
Move last_{bot,top,state} from rxvt_term to scrollBar_t.
Move scrollbar_align from rxvt_xterm to scrollBar_t.
Remove use of isupper.
Remove unused macro.
Rename 'sb_shadow' scrollBar_t field to 'shadow'.
Move sb_shadow from rxvt_vars to scrollBar_t.
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