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git/lib/status_bar.tcl
Shawn O. Pearce b79223064e git-gui: Show a progress meter for checking out files
Sometimes switching between branches can take more than a second or
two, in which case `git checkout` would normally have shown a small
progress meter to the user on the terminal to let them know that we
are in fact working, and give them a reasonable idea of when we may
finish.

We now do obtain that progress meter from read-tree -v and include
it in our main window's status bar.  This allows users to see how
many files we have checked out, how many remain, and what percentage
of the operation is completed.  It should help to keep users from
getting bored during a large checkout operation.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-07-08 22:48:19 -04:00

97 lines
1.8 KiB
Tcl

# git-gui status bar mega-widget
# Copyright (C) 2007 Shawn Pearce
class status_bar {
field w ; # our own window path
field w_l ; # text widget we draw messages into
field w_c ; # canvas we draw a progress bar into
field status {}; # single line of text we show
field prefix {}; # text we format into status
field units {}; # unit of progress
field meter {}; # current core git progress meter (if active)
constructor new {path} {
set w $path
set w_l $w.l
set w_c $w.c
frame $w \
-borderwidth 1 \
-relief sunken
label $w_l \
-textvariable @status \
-anchor w \
-justify left
pack $w_l -side left
bind $w <Destroy> [cb _delete %W]
return $this
}
method start {msg uds} {
if {[winfo exists $w_c]} {
$w_c coords bar 0 0 0 20
} else {
canvas $w_c \
-width 100 \
-height [expr {int([winfo reqheight $w_l] * 0.6)}] \
-borderwidth 1 \
-relief groove \
-highlightt 0
$w_c create rectangle 0 0 0 20 -tags bar -fill navy
pack $w_c -side right
}
set status $msg
set prefix $msg
set units $uds
set meter {}
}
method update {have total} {
set pdone 0
if {$total > 0} {
set pdone [expr {100 * $have / $total}]
}
set status [format "%s ... %i of %i %s (%2i%%)" \
$prefix $have $total $units $pdone]
$w_c coords bar 0 0 $pdone 20
}
method update_meter {buf} {
append meter $buf
set r [string last "\r" $meter]
if {$r == -1} {
return
}
set prior [string range $meter 0 $r]
set meter [string range $meter [expr {$r + 1}] end]
if {[regexp "\\((\\d+)/(\\d+)\\)\\s+done\r\$" $prior _j a b]} {
update $this $a $b
}
}
method stop {{msg {}}} {
destroy $w_c
if {$msg ne {}} {
set status $msg
}
}
method show {msg {test {}}} {
if {$test eq {} || $status eq $test} {
set status $msg
}
}
method _delete {current} {
if {$current eq $w} {
delete_this
}
}
}