pro qView_UpdateFiles, state

@compile_opt.pro		; On error, return to caller

;+
; NAME:
;	qView_UpdateFiles
; PURPOSE:
;	Called by qView_Event to process messages from the
;	state.frstfile, state.lastfile and state.incrfile widgets.
; CATEGORY:
;	Widget qView
; CALLING SEQUENCE:
;	qView_UpdateFiles, state
; INPUTS:
;	state			array[1]; type: structure
;						qView state structure
; OUTPUTS:
;	(to widgets)
; CALLS:
;	qView_ImageInfo, qView_Sensitive
; PROCEDURE:
;	Processes messages from state.wid_frst, state.wid_last and state.wid_incr widgets.
; STATE INFO USED:
;	widget_control, state.wid_pick  , get_uvalue=allfiles, /no_copy
; STATE INFO MODIFIED:
;	widget_control, state.wid_pick  , set_uvalue=allfiles, /no_copy
; MODIFICATION HISTORY:
;	JAN-1999, Paul Hick (UCSD/CASS)
;	FEB-2000, Paul Hick (UCSD/CASS; pphick@ucsd.edu), complete overhaul
;-

tmp = qView_ImageInfo(state, /number, /active)

widget_control, state.wid_pick, get_uvalue=allfiles, /no_copy

widget_control, state.wid_select, set_value='(Total of '+	$
		strcompress(tmp[0],/rem)+'/'+strcompress((size(allfiles,/dim))[0],/rem)+' files)'

widget_control, state.wid_pick, set_uvalue=allfiles, /no_copy

tmp = qView_UpdateActive(state, value=tmp[1])

qView_Sensitive, state, /get_data

return  &  end