lib/status_bar.tcl

   1 # git-gui status bar mega-widget
   2 # Copyright (C) 2007 Shawn Pearce
   3
   4 class status_bar {
   5
   6 field w         ; # our own window path
   7 field w_l       ; # text widget we draw messages into
   8 field w_c       ; # canvas we draw a progress bar into
   9 field c_pack    ; # script to pack the canvas with
  10 field status  {}; # single line of text we show
  11 field prefix  {}; # text we format into status
  12 field units   {}; # unit of progress
  13 field meter   {}; # current core git progress meter (if active)
  14
  15 constructor new {path} {
  16         set w $path
  17         set w_l $w.l
  18         set w_c $w.c
  19
  20         frame $w \
  21                 -borderwidth 1 \
  22                 -relief sunken
  23         label $w_l \
  24                 -textvariable @status \
  25                 -anchor w \
  26                 -justify left
  27         pack $w_l -side left
  28         set c_pack [cb _oneline_pack]
  29
  30         bind $w <Destroy> [cb _delete %W]
  31         return $this
  32 }
  33
  34 method _oneline_pack {} {
  35         $w_c conf -width 100
  36         pack $w_c -side right
  37 }
  38
  39 constructor two_line {path} {
  40         set w $path
  41         set w_l $w.l
  42         set w_c $w.c
  43
  44         frame $w
  45         label $w_l \
  46                 -textvariable @status \
  47                 -anchor w \
  48                 -justify left
  49         pack $w_l -anchor w -fill x
  50         set c_pack [list pack $w_c -fill x]
  51
  52         bind $w <Destroy> [cb _delete %W]
  53         return $this
  54 }
  55
  56 method start {msg uds} {
  57         if {[winfo exists $w_c]} {
  58                 $w_c coords bar 0 0 0 20
  59         } else {
  60                 canvas $w_c \
  61                         -height [expr {int([winfo reqheight $w_l] * 0.6)}] \
  62                         -borderwidth 1 \
  63                         -relief groove \
  64                         -highlightt 0
  65                 $w_c create rectangle 0 0 0 20 -tags bar -fill navy
  66                 eval $c_pack
  67         }
  68
  69         set status $msg
  70         set prefix $msg
  71         set units  $uds
  72         set meter  {}
  73 }
  74
  75 method update {have total} {
  76         set pdone 0
  77         if {$total > 0} {
  78                 set pdone [expr {100 * $have / $total}]
  79                 set cdone [expr {[winfo width $w_c] * $have / $total}]
  80         }
  81
  82         set prec [string length [format %i $total]]
  83         set status [mc "%s ... %*i of %*i %s (%3i%%)" \
  84                 $prefix \
  85                 $prec $have \
  86                 $prec $total \
  87                 $units $pdone]
  88         $w_c coords bar 0 0 $cdone 20
  89 }
  90
  91 method update_meter {buf} {
  92         append meter $buf
  93         set r [string last "\r" $meter]
  94         if {$r == -1} {
  95                 return
  96         }
  97
  98         set prior [string range $meter 0 $r]
  99         set meter [string range $meter [expr {$r + 1}] end]
 100         set p "\\((\\d+)/(\\d+)\\)"
 101         if {[regexp ":\\s*\\d+% $p\(?:, done.\\s*\n|\\s*\r)\$" $prior _j a b]} {
 102                 update $this $a $b
 103         } elseif {[regexp "$p\\s+done\r\$" $prior _j a b]} {
 104                 update $this $a $b
 105         }
 106 }
 107
 108 method stop {{msg {}}} {
 109         destroy $w_c
 110         if {$msg ne {}} {
 111                 set status $msg
 112         }
 113 }
 114
 115 method show {msg {test {}}} {
 116         if {$test eq {} || $status eq $test} {
 117                 set status $msg
 118         }
 119 }
 120
 121 method _delete {current} {
 122         if {$current eq $w} {
 123                 delete_this
 124         }
 125 }
 126
 127 }