lib/choose_rev.tcl

   1 # git-gui revision chooser
   2 # Copyright (C) 2006, 2007 Shawn Pearce
   3
   4 class choose_rev {
   5
   6 field w               ; # our megawidget path
   7 field revtype       {}; # type of revision chosen
   8
   9 field c_head        {}; # selected local branch head
  10 field c_trck        {}; # selected tracking branch
  11 field c_tag         {}; # selected tag
  12 field c_expr        {}; # current revision expression
  13
  14 constructor new {path {title {}}} {
  15         global all_heads current_branch
  16
  17         set w $path
  18
  19         if {$title ne {}} {
  20                 labelframe $w -text $title
  21         } else {
  22                 frame $w
  23         }
  24         bind $w <Destroy> [cb _delete %W]
  25
  26         if {$all_heads ne {}} {
  27                 set c_head $current_branch
  28                 radiobutton $w.head_r \
  29                         -text {Local Branch:} \
  30                         -value head \
  31                         -variable @revtype
  32                 eval tk_optionMenu $w.head_m @c_head $all_heads
  33                 grid $w.head_r $w.head_m -sticky w
  34                 if {$revtype eq {}} {
  35                         set revtype head
  36                 }
  37                 trace add variable @c_head write [cb _select head]
  38         }
  39
  40         set all_trackings [all_tracking_branches]
  41         if {$all_trackings ne {}} {
  42                 set c_trck [lindex $all_trackings 0]
  43                 radiobutton $w.trck_r \
  44                         -text {Tracking Branch:} \
  45                         -value trck \
  46                         -variable @revtype
  47                 eval tk_optionMenu $w.trck_m @c_trck $all_trackings
  48                 grid $w.trck_r $w.trck_m -sticky w
  49                 if {$revtype eq {}} {
  50                         set revtype trck
  51                 }
  52                 trace add variable @c_trck write [cb _select trck]
  53         }
  54
  55         set all_tags [load_all_tags]
  56         if {$all_tags ne {}} {
  57                 set c_tag [lindex $all_tags 0]
  58                 radiobutton $w.tag_r \
  59                         -text {Tag:} \
  60                         -value tag \
  61                         -variable @revtype
  62                 eval tk_optionMenu $w.tag_m @c_tag $all_tags
  63                 grid $w.tag_r $w.tag_m -sticky w
  64                 if {$revtype eq {}} {
  65                         set revtype tag
  66                 }
  67                 trace add variable @c_tag write [cb _select tag]
  68         }
  69
  70         radiobutton $w.expr_r \
  71                 -text {Revision Expression:} \
  72                 -value expr \
  73                 -variable @revtype
  74         entry $w.expr_t \
  75                 -borderwidth 1 \
  76                 -relief sunken \
  77                 -width 50 \
  78                 -textvariable @c_expr \
  79                 -validate key \
  80                 -validatecommand [cb _validate %d %S]
  81         grid $w.expr_r $w.expr_t -sticky we -padx {0 5}
  82         if {$revtype eq {}} {
  83                 set revtype expr
  84         }
  85
  86         grid columnconfigure $w 1 -weight 1
  87         return $this
  88 }
  89
  90 method get {} {
  91         switch -- $revtype {
  92         head { return $c_head }
  93         trck { return $c_trck }
  94         tag  { return $c_tag  }
  95         expr { return $c_expr }
  96         default { error "unknown type of revision" }
  97         }
  98 }
  99
 100 method get_commit {} {
 101         set rev [get $this]
 102         return [git rev-parse --verify "${rev}^0"]
 103 }
 104
 105 method _validate {d S} {
 106         if {$d == 1} {
 107                 if {[regexp {\s} $S]} {
 108                         return 0
 109                 }
 110                 if {[string length $S] > 0} {
 111                         set revtype expr
 112                 }
 113         }
 114         return 1
 115 }
 116
 117 method _select {value args} {
 118         set revtype $value
 119 }
 120
 121 method _delete {current} {
 122         if {$current eq $w} {
 123                 delete_this
 124         }
 125 }
 126
 127 }