lib/blame.tcl

   1 # git-gui blame viewer
   2 # Copyright (C) 2006, 2007 Shawn Pearce
   3
   4 class blame {
   5
   6 image create photo ::blame::img_back_arrow -data {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}
   7
   8 # Persistant data (survives loads)
   9 #
  10 field history {}; # viewer history: {commit path}
  11 field header    ; # array commit,key -> header field
  12
  13 # Tk UI control paths
  14 #
  15 field w          ; # top window in this viewer
  16 field w_back     ; # our back button
  17 field w_path     ; # label showing the current file path
  18 field w_columns  ; # list of all column widgets in the viewer
  19 field w_line     ; # text column: all line numbers
  20 field w_amov     ; # text column: annotations + move tracking
  21 field w_asim     ; # text column: annotations (simple computation)
  22 field w_file     ; # text column: actual file data
  23 field w_cviewer  ; # pane showing commit message
  24 field finder     ; # find mini-dialog frame
  25 field gotoline   ; # line goto mini-dialog frame
  26 field status     ; # status mega-widget instance
  27 field old_height ; # last known height of $w.file_pane
  28
  29
  30 # Tk UI colors
  31 #
  32 variable active_color #c0edc5
  33 variable group_colors {
  34         #d6d6d6
  35         #e1e1e1
  36         #ececec
  37 }
  38
  39 # Current blame data; cleared/reset on each load
  40 #
  41 field commit               ; # input commit to blame
  42 field path                 ; # input filename to view in $commit
  43
  44 field current_fd        {} ; # background process running
  45 field highlight_line    -1 ; # current line selected
  46 field highlight_column  {} ; # current commit column selected
  47 field highlight_commit  {} ; # sha1 of commit selected
  48
  49 field total_lines       0  ; # total length of file
  50 field blame_lines       0  ; # number of lines computed
  51 field amov_data            ; # list of {commit origfile origline}
  52 field asim_data            ; # list of {commit origfile origline}
  53
  54 field r_commit             ; # commit currently being parsed
  55 field r_orig_line          ; # original line number
  56 field r_final_line         ; # final line number
  57 field r_line_count         ; # lines in this region
  58
  59 field tooltip_wm        {} ; # Current tooltip toplevel, if open
  60 field tooltip_t         {} ; # Text widget in $tooltip_wm
  61 field tooltip_timer     {} ; # Current timer event for our tooltip
  62 field tooltip_commit    {} ; # Commit(s) in tooltip
  63
  64 constructor new {i_commit i_path i_jump} {
  65         global cursor_ptr M1B M1T have_tk85 use_ttk NS
  66         variable active_color
  67         variable group_colors
  68
  69         set commit $i_commit
  70         set path   $i_path
  71
  72         make_toplevel top w
  73         wm title $top [append "[appname] ([reponame]): " [mc "File Viewer"]]
  74
  75         set font_w [font measure font_diff "0"]
  76
  77         gold_frame $w.header
  78         tlabel $w.header.commit_l \
  79                 -text [mc "Commit:"] \
  80                 -background gold \
  81                 -foreground black \
  82                 -anchor w \
  83                 -justify left
  84         set w_back $w.header.commit_b
  85         tlabel $w_back \
  86                 -image ::blame::img_back_arrow \
  87                 -borderwidth 0 \
  88                 -relief flat \
  89                 -state disabled \
  90                 -background gold \
  91                 -foreground black \
  92                 -activebackground gold
  93         bind $w_back <Button-1> "
  94                 if {\[$w_back cget -state\] eq {normal}} {
  95                         [cb _history_menu]
  96                 }
  97                 "
  98         tlabel $w.header.commit \
  99                 -textvariable @commit \
 100                 -background gold \
 101                 -foreground black \
 102                 -anchor w \
 103                 -justify left
 104         tlabel $w.header.path_l \
 105                 -text [mc "File:"] \
 106                 -background gold \
 107                 -foreground black \
 108                 -anchor w \
 109                 -justify left
 110         set w_path $w.header.path
 111         tlabel $w_path \
 112                 -background gold \
 113                 -foreground black \
 114                 -anchor w \
 115                 -justify left
 116         pack $w.header.commit_l -side left
 117         pack $w_back -side left
 118         pack $w.header.commit -side left
 119         pack $w_path -fill x -side right
 120         pack $w.header.path_l -side right
 121
 122         panedwindow $w.file_pane -orient vertical -borderwidth 0 -sashwidth 3
 123         frame $w.file_pane.out -relief flat -borderwidth 1
 124         frame $w.file_pane.cm -relief sunken -borderwidth 1
 125         $w.file_pane add $w.file_pane.out \
 126                 -sticky nsew \
 127                 -minsize 100 \
 128                 -height 100 \
 129                 -width 100
 130         $w.file_pane add $w.file_pane.cm \
 131                 -sticky nsew \
 132                 -minsize 25 \
 133                 -height 25 \
 134                 -width 100
 135
 136         set w_line $w.file_pane.out.linenumber_t
 137         text $w_line \
 138                 -takefocus 0 \
 139                 -highlightthickness 0 \
 140                 -padx 0 -pady 0 \
 141                 -background white \
 142                 -foreground black \
 143                 -borderwidth 0 \
 144                 -state disabled \
 145                 -wrap none \
 146                 -height 40 \
 147                 -width 6 \
 148                 -font font_diff
 149         $w_line tag conf linenumber -justify right -rmargin 5
 150
 151         set w_amov $w.file_pane.out.amove_t
 152         text $w_amov \
 153                 -takefocus 0 \
 154                 -highlightthickness 0 \
 155                 -padx 0 -pady 0 \
 156                 -background white \
 157                 -foreground black \
 158                 -borderwidth 0 \
 159                 -state disabled \
 160                 -wrap none \
 161                 -height 40 \
 162                 -width 5 \
 163                 -font font_diff
 164         $w_amov tag conf author_abbr -justify right -rmargin 5
 165         $w_amov tag conf curr_commit
 166         $w_amov tag conf prior_commit -foreground blue -underline 1
 167         $w_amov tag bind prior_commit \
 168                 <Button-1> \
 169                 "[cb _load_commit $w_amov @amov_data @%x,%y];break"
 170
 171         set w_asim $w.file_pane.out.asimple_t
 172         text $w_asim \
 173                 -takefocus 0 \
 174                 -highlightthickness 0 \
 175                 -padx 0 -pady 0 \
 176                 -background white \
 177                 -foreground black \
 178                 -borderwidth 0 \
 179                 -state disabled \
 180                 -wrap none \
 181                 -height 40 \
 182                 -width 4 \
 183                 -font font_diff
 184         $w_asim tag conf author_abbr -justify right
 185         $w_asim tag conf curr_commit
 186         $w_asim tag conf prior_commit -foreground blue -underline 1
 187         $w_asim tag bind prior_commit \
 188                 <Button-1> \
 189                 "[cb _load_commit $w_asim @asim_data @%x,%y];break"
 190
 191         set w_file $w.file_pane.out.file_t
 192         text $w_file \
 193                 -takefocus 0 \
 194                 -highlightthickness 0 \
 195                 -padx 0 -pady 0 \
 196                 -background white \
 197                 -foreground black \
 198                 -borderwidth 0 \
 199                 -state disabled \
 200                 -wrap none \
 201                 -height 40 \
 202                 -width 80 \
 203                 -xscrollcommand [list $w.file_pane.out.sbx set] \
 204                 -font font_diff
 205         if {$have_tk85} {
 206                 $w_file configure -inactiveselectbackground darkblue
 207         }
 208         $w_file tag conf found \
 209                 -background yellow
 210
 211         set w_columns [list $w_amov $w_asim $w_line $w_file]
 212
 213         ${NS}::scrollbar $w.file_pane.out.sbx \
 214                 -orient h \
 215                 -command [list $w_file xview]
 216         ${NS}::scrollbar $w.file_pane.out.sby \
 217                 -orient v \
 218                 -command [list scrollbar2many $w_columns yview]
 219         eval grid $w_columns $w.file_pane.out.sby -sticky nsew
 220         grid conf \
 221                 $w.file_pane.out.sbx \
 222                 -column [expr {[llength $w_columns] - 1}] \
 223                 -sticky we
 224         grid columnconfigure \
 225                 $w.file_pane.out \
 226                 [expr {[llength $w_columns] - 1}] \
 227                 -weight 1
 228         grid rowconfigure $w.file_pane.out 0 -weight 1
 229
 230         set finder [::searchbar::new \
 231                 $w.file_pane.out.ff $w_file \
 232                 -column [expr {[llength $w_columns] - 1}] \
 233                 ]
 234
 235         set gotoline [::linebar::new \
 236                 $w.file_pane.out.lf $w_file \
 237                 -column [expr {[llength $w_columns] - 1}] \
 238                 ]
 239
 240         set w_cviewer $w.file_pane.cm.t
 241         text $w_cviewer \
 242                 -background white \
 243                 -foreground black \
 244                 -borderwidth 0 \
 245                 -state disabled \
 246                 -wrap none \
 247                 -height 10 \
 248                 -width 80 \
 249                 -xscrollcommand [list $w.file_pane.cm.sbx set] \
 250                 -yscrollcommand [list $w.file_pane.cm.sby set] \
 251                 -font font_diff
 252         $w_cviewer tag conf still_loading \
 253                 -font font_uiitalic \
 254                 -justify center
 255         $w_cviewer tag conf header_key \
 256                 -tabs {3c} \
 257                 -background $active_color \
 258                 -font font_uibold
 259         $w_cviewer tag conf header_val \
 260                 -background $active_color \
 261                 -font font_ui
 262         $w_cviewer tag raise sel
 263         ${NS}::scrollbar $w.file_pane.cm.sbx \
 264                 -orient h \
 265                 -command [list $w_cviewer xview]
 266         ${NS}::scrollbar $w.file_pane.cm.sby \
 267                 -orient v \
 268                 -command [list $w_cviewer yview]
 269         pack $w.file_pane.cm.sby -side right -fill y
 270         pack $w.file_pane.cm.sbx -side bottom -fill x
 271         pack $w_cviewer -expand 1 -fill both
 272
 273         set status [::status_bar::new $w.status]
 274
 275         menu $w.ctxm -tearoff 0
 276         $w.ctxm add command \
 277                 -label [mc "Copy Commit"] \
 278                 -command [cb _copycommit]
 279         $w.ctxm add separator
 280         $w.ctxm add command \
 281                 -label [mc "Find Text..."] \
 282                 -accelerator F7 \
 283                 -command [list searchbar::show $finder]
 284         $w.ctxm add command \
 285                 -label [mc "Goto Line..."] \
 286                 -accelerator "Ctrl-G" \
 287                 -command [list linebar::show $gotoline]
 288         menu $w.ctxm.enc
 289         build_encoding_menu $w.ctxm.enc [cb _setencoding]
 290         $w.ctxm add cascade \
 291                 -label [mc "Encoding"] \
 292                 -menu $w.ctxm.enc
 293         $w.ctxm add command \
 294                 -label [mc "Do Full Copy Detection"] \
 295                 -command [cb _fullcopyblame]
 296         $w.ctxm add separator
 297         $w.ctxm add command \
 298                 -label [mc "Show History Context"] \
 299                 -command [cb _gitkcommit]
 300         $w.ctxm add command \
 301                 -label [mc "Blame Parent Commit"] \
 302                 -command [cb _blameparent]
 303
 304         foreach i $w_columns {
 305                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
 306                         $i tag conf color$g -background [lindex $group_colors $g]
 307                 }
 308
 309                 if {$i eq $w_file} {
 310                         $w_file tag raise found
 311                 }
 312                 $i tag raise sel
 313
 314                 $i conf -cursor $cursor_ptr
 315                 $i conf -yscrollcommand \
 316                         "[list ::searchbar::scrolled $finder]
 317                          [list many2scrollbar $w_columns yview $w.file_pane.out.sby]"
 318                 bind $i <Button-1> "
 319                         [cb _hide_tooltip]
 320                         [cb _click $i @%x,%y]
 321                         focus $i
 322                 "
 323                 bind $i <Any-Motion>  [cb _show_tooltip $i @%x,%y]
 324                 bind $i <Any-Enter>   [cb _hide_tooltip]
 325                 bind $i <Any-Leave>   [cb _hide_tooltip]
 326                 bind_button3 $i "
 327                         [cb _hide_tooltip]
 328                         set cursorX %x
 329                         set cursorY %y
 330                         set cursorW %W
 331                         tk_popup $w.ctxm %X %Y
 332                 "
 333                 bind $i <Shift-Tab> "[list focus $w_cviewer];break"
 334                 bind $i <Tab>       "[cb _focus_search $w_cviewer];break"
 335         }
 336
 337         foreach i [concat $w_columns $w_cviewer] {
 338                 bind $i <Key-Up>        {catch {%W yview scroll -1 units};break}
 339                 bind $i <Key-Down>      {catch {%W yview scroll  1 units};break}
 340                 bind $i <Key-Left>      {catch {%W xview scroll -1 units};break}
 341                 bind $i <Key-Right>     {catch {%W xview scroll  1 units};break}
 342                 bind $i <Key-k>         {catch {%W yview scroll -1 units};break}
 343                 bind $i <Key-j>         {catch {%W yview scroll  1 units};break}
 344                 bind $i <Key-h>         {catch {%W xview scroll -1 units};break}
 345                 bind $i <Key-l>         {catch {%W xview scroll  1 units};break}
 346                 bind $i <Control-Key-b> {catch {%W yview scroll -1 pages};break}
 347                 bind $i <Control-Key-f> {catch {%W yview scroll  1 pages};break}
 348         }
 349
 350         bind $w_cviewer <Shift-Tab> "[cb _focus_search $w_file];break"
 351         bind $w_cviewer <Tab>       "[list focus $w_file];break"
 352         bind $w_cviewer <Button-1>   [list focus $w_cviewer]
 353         bind $w_file    <Visibility> [cb _focus_search $w_file]
 354         bind $top       <F7>         [list searchbar::show $finder]
 355         bind $top       <Escape>     [list searchbar::hide $finder]
 356         bind $top       <F3>         [list searchbar::find_next $finder]
 357         bind $top       <Shift-F3>   [list searchbar::find_prev $finder]
 358         bind $top    <Control-Key-g> [list linebar::show $gotoline]
 359         catch { bind $top <Shift-Key-XF86_Switch_VT_3> [list searchbar::find_prev $finder] }
 360
 361         grid configure $w.header -sticky ew
 362         grid configure $w.file_pane -sticky nsew
 363         grid configure $w.status -sticky ew
 364         grid columnconfigure $top 0 -weight 1
 365         grid rowconfigure $top 0 -weight 0
 366         grid rowconfigure $top 1 -weight 1
 367         grid rowconfigure $top 2 -weight 0
 368
 369         set req_w [winfo reqwidth  $top]
 370         set req_h [winfo reqheight $top]
 371         set scr_w [expr {[winfo screenwidth $top] - 40}]
 372         set scr_h [expr {[winfo screenheight $top] - 120}]
 373         set opt_w [expr {$font_w * (80 + 5*3 + 3)}]
 374         if {$req_w < $opt_w} {set req_w $opt_w}
 375         if {$req_w > $scr_w} {set req_w $scr_w}
 376         set opt_h [expr {$req_w*4/3}]
 377         if {$req_h < $scr_h} {set req_h $scr_h}
 378         if {$req_h > $opt_h} {set req_h $opt_h}
 379         set g "${req_w}x${req_h}"
 380         wm geometry $top $g
 381         update
 382
 383         set old_height [winfo height $w.file_pane]
 384         $w.file_pane sash place 0 \
 385                 [lindex [$w.file_pane sash coord 0] 0] \
 386                 [expr {int($old_height * 0.80)}]
 387         bind $w.file_pane <Configure> \
 388         "if {{$w.file_pane} eq {%W}} {[cb _resize %h]}"
 389
 390         wm protocol $top WM_DELETE_WINDOW "destroy $top"
 391         bind $top <Destroy> [cb _handle_destroy %W]
 392
 393         _load $this $i_jump
 394 }
 395
 396 method _focus_search {win} {
 397         if {[searchbar::visible $finder]} {
 398                 focus [searchbar::editor $finder]
 399         } else {
 400                 focus $win
 401         }
 402 }
 403
 404 method _handle_destroy {win} {
 405         if {$win eq $w} {
 406                 _kill $this
 407                 delete_this
 408         }
 409 }
 410
 411 method _kill {} {
 412         if {$current_fd ne {}} {
 413                 kill_file_process $current_fd
 414                 catch {close $current_fd}
 415                 set current_fd {}
 416         }
 417 }
 418
 419 method _load {jump} {
 420         variable group_colors
 421
 422         _hide_tooltip $this
 423
 424         if {$total_lines != 0 || $current_fd ne {}} {
 425                 _kill $this
 426
 427                 foreach i $w_columns {
 428                         $i conf -state normal
 429                         $i delete 0.0 end
 430                         foreach g [$i tag names] {
 431                                 if {[regexp {^g[0-9a-f]{40}$} $g]} {
 432                                         $i tag delete $g
 433                                 }
 434                         }
 435                         $i conf -state disabled
 436                 }
 437
 438                 $w_cviewer conf -state normal
 439                 $w_cviewer delete 0.0 end
 440                 $w_cviewer conf -state disabled
 441
 442                 set highlight_line -1
 443                 set highlight_column {}
 444                 set highlight_commit {}
 445                 set total_lines 0
 446         }
 447
 448         if {$history eq {}} {
 449                 $w_back conf -state disabled
 450         } else {
 451                 $w_back conf -state normal
 452         }
 453
 454         # Index 0 is always empty.  There is never line 0 as
 455         # we use only 1 based lines, as that matches both with
 456         # git-blame output and with Tk's text widget.
 457         #
 458         set amov_data [list [list]]
 459         set asim_data [list [list]]
 460
 461         $status show [mc "Reading %s..." "$commit:[escape_path $path]"]
 462         $w_path conf -text [escape_path $path]
 463
 464         set do_textconv 0
 465         if {![is_config_false gui.textconv] && [git-version >= 1.7.2]} {
 466                 set filter [gitattr $path diff set]
 467                 set textconv [get_config [join [list diff $filter textconv] .]]
 468                 if {$filter ne {set} && $textconv ne {}} {
 469                         set do_textconv 1
 470                 }
 471         }
 472         if {$commit eq {}} {
 473                 if {$do_textconv ne 0} {
 474                         # Run textconv with sh -c "..." to allow it to
 475                         # contain command + arguments. On windows, just
 476                         # call the filter command.
 477                         if {![file executable [shellpath]]} {
 478                                 set fd [open |[linsert $textconv end $path] r]
 479                         } else {
 480                                 set fd [open |[list [shellpath] -c "$textconv \"\$0\"" $path] r]
 481                         }
 482                 } else {
 483                         set fd [open $path r]
 484                 }
 485                 fconfigure $fd -eofchar {}
 486         } else {
 487                 if {$do_textconv ne 0} {
 488                         set fd [git_read cat-file --textconv "$commit:$path"]
 489                 } else {
 490                         set fd [git_read cat-file blob "$commit:$path"]
 491                 }
 492         }
 493         fconfigure $fd \
 494                 -blocking 0 \
 495                 -translation lf \
 496                 -encoding [get_path_encoding $path]
 497         fileevent $fd readable [cb _read_file $fd $jump]
 498         set current_fd $fd
 499 }
 500
 501 method _history_menu {} {
 502         set m $w.backmenu
 503         if {[winfo exists $m]} {
 504                 $m delete 0 end
 505         } else {
 506                 menu $m -tearoff 0
 507         }
 508
 509         for {set i [expr {[llength $history] - 1}]
 510                 } {$i >= 0} {incr i -1} {
 511                 set e [lindex $history $i]
 512                 set c [lindex $e 0]
 513                 set f [lindex $e 1]
 514
 515                 if {[regexp {^[0-9a-f]{40}$} $c]} {
 516                         set t [string range $c 0 8]...
 517                 } elseif {$c eq {}} {
 518                         set t {Working Directory}
 519                 } else {
 520                         set t $c
 521                 }
 522                 if {![catch {set summary $header($c,summary)}]} {
 523                         append t " $summary"
 524                         if {[string length $t] > 70} {
 525                                 set t [string range $t 0 66]...
 526                         }
 527                 }
 528
 529                 $m add command -label $t -command [cb _goback $i]
 530         }
 531         set X [winfo rootx $w_back]
 532         set Y [expr {[winfo rooty $w_back] + [winfo height $w_back]}]
 533         tk_popup $m $X $Y
 534 }
 535
 536 method _goback {i} {
 537         set dat [lindex $history $i]
 538         set history [lrange $history 0 [expr {$i - 1}]]
 539         set commit [lindex $dat 0]
 540         set path [lindex $dat 1]
 541         _load $this [lrange $dat 2 5]
 542 }
 543
 544 method _read_file {fd jump} {
 545         if {$fd ne $current_fd} {
 546                 catch {close $fd}
 547                 return
 548         }
 549
 550         foreach i $w_columns {$i conf -state normal}
 551         while {[gets $fd line] >= 0} {
 552                 regsub "\r\$" $line {} line
 553                 incr total_lines
 554                 lappend amov_data {}
 555                 lappend asim_data {}
 556
 557                 if {$total_lines > 1} {
 558                         foreach i $w_columns {$i insert end "\n"}
 559                 }
 560
 561                 $w_line insert end "$total_lines" linenumber
 562                 $w_file insert end "$line"
 563         }
 564
 565         set ln_wc [expr {[string length $total_lines] + 2}]
 566         if {[$w_line cget -width] < $ln_wc} {
 567                 $w_line conf -width $ln_wc
 568         }
 569
 570         foreach i $w_columns {$i conf -state disabled}
 571
 572         if {[eof $fd]} {
 573                 close $fd
 574
 575                 # If we don't force Tk to update the widgets *right now*
 576                 # none of our jump commands will cause a change in the UI.
 577                 #
 578                 update
 579
 580                 if {[llength $jump] == 1} {
 581                         set highlight_line [lindex $jump 0]
 582                         $w_file see "$highlight_line.0"
 583                 } elseif {[llength $jump] == 4} {
 584                         set highlight_column [lindex $jump 0]
 585                         set highlight_line [lindex $jump 1]
 586                         $w_file xview moveto [lindex $jump 2]
 587                         $w_file yview moveto [lindex $jump 3]
 588                 }
 589
 590                 _exec_blame $this $w_asim @asim_data \
 591                         [list] \
 592                         [mc "Loading copy/move tracking annotations..."]
 593         }
 594 } ifdeleted { catch {close $fd} }
 595
 596 method _exec_blame {cur_w cur_d options cur_s} {
 597         lappend options --incremental --encoding=utf-8
 598         if {$commit eq {}} {
 599                 lappend options --contents $path
 600         } else {
 601                 lappend options $commit
 602         }
 603         lappend options -- $path
 604         set fd [eval git_read --nice blame $options]
 605         fconfigure $fd -blocking 0 -translation lf -encoding utf-8
 606         fileevent $fd readable [cb _read_blame $fd $cur_w $cur_d]
 607         set current_fd $fd
 608         set blame_lines 0
 609
 610         $status start \
 611                 $cur_s \
 612                 [mc "lines annotated"]
 613 }
 614
 615 method _read_blame {fd cur_w cur_d} {
 616         upvar #0 $cur_d line_data
 617         variable group_colors
 618
 619         if {$fd ne $current_fd} {
 620                 catch {close $fd}
 621                 return
 622         }
 623
 624         $cur_w conf -state normal
 625         while {[gets $fd line] >= 0} {
 626                 if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
 627                         cmit original_line final_line line_count]} {
 628                         set r_commit     $cmit
 629                         set r_orig_line  $original_line
 630                         set r_final_line $final_line
 631                         set r_line_count $line_count
 632                 } elseif {[string match {filename *} $line]} {
 633                         set file [string range $line 9 end]
 634                         set n    $r_line_count
 635                         set lno  $r_final_line
 636                         set oln  $r_orig_line
 637                         set cmit $r_commit
 638
 639                         if {[regexp {^0{40}$} $cmit]} {
 640                                 set commit_abbr work
 641                                 set commit_type curr_commit
 642                         } elseif {$cmit eq $commit} {
 643                                 set commit_abbr this
 644                                 set commit_type curr_commit
 645                         } else {
 646                                 set commit_type prior_commit
 647                                 set commit_abbr [string range $cmit 0 3]
 648                         }
 649
 650                         set author_abbr {}
 651                         set a_name {}
 652                         catch {set a_name $header($cmit,author)}
 653                         while {$a_name ne {}} {
 654                                 if {$author_abbr ne {}
 655                                         && [string index $a_name 0] eq {'}} {
 656                                         regsub {^'[^']+'\s+} $a_name {} a_name
 657                                 }
 658                                 if {![regexp {^([[:upper:]])} $a_name _a]} break
 659                                 append author_abbr $_a
 660                                 unset _a
 661                                 if {![regsub \
 662                                         {^[[:upper:]][^\s]*\s+} \
 663                                         $a_name {} a_name ]} break
 664                         }
 665                         if {$author_abbr eq {}} {
 666                                 set author_abbr { |}
 667                         } else {
 668                                 set author_abbr [string range $author_abbr 0 3]
 669                         }
 670                         unset a_name
 671
 672                         set first_lno $lno
 673                         while {
 674                            $first_lno > 1
 675                         && $cmit eq [lindex $line_data [expr {$first_lno - 1}] 0]
 676                         && $file eq [lindex $line_data [expr {$first_lno - 1}] 1]
 677                         } {
 678                                 incr first_lno -1
 679                         }
 680
 681                         set color {}
 682                         if {$first_lno < $lno} {
 683                                 foreach g [$w_file tag names $first_lno.0] {
 684                                         if {[regexp {^color[0-9]+$} $g]} {
 685                                                 set color $g
 686                                                 break
 687                                         }
 688                                 }
 689                         } else {
 690                                 set i [lsort [concat \
 691                                         [$w_file tag names "[expr {$first_lno - 1}].0"] \
 692                                         [$w_file tag names "[expr {$lno + $n}].0"] \
 693                                         ]]
 694                                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
 695                                         if {[lsearch -sorted -exact $i color$g] == -1} {
 696                                                 set color color$g
 697                                                 break
 698                                         }
 699                                 }
 700                         }
 701                         if {$color eq {}} {
 702                                 set color color0
 703                         }
 704
 705                         while {$n > 0} {
 706                                 set lno_e "$lno.0 lineend + 1c"
 707                                 if {[lindex $line_data $lno] ne {}} {
 708                                         set g [lindex $line_data $lno 0]
 709                                         foreach i $w_columns {
 710                                                 $i tag remove g$g $lno.0 $lno_e
 711                                         }
 712                                 }
 713                                 lset line_data $lno [list $cmit $file $oln]
 714
 715                                 $cur_w delete $lno.0 "$lno.0 lineend"
 716                                 if {$lno == $first_lno} {
 717                                         $cur_w insert $lno.0 $commit_abbr $commit_type
 718                                 } elseif {$lno == [expr {$first_lno + 1}]} {
 719                                         $cur_w insert $lno.0 $author_abbr author_abbr
 720                                 } else {
 721                                         $cur_w insert $lno.0 { |}
 722                                 }
 723
 724                                 foreach i $w_columns {
 725                                         if {$cur_w eq $w_amov} {
 726                                                 for {set g 0} \
 727                                                         {$g < [llength $group_colors]} \
 728                                                         {incr g} {
 729                                                         $i tag remove color$g $lno.0 $lno_e
 730                                                 }
 731                                                 $i tag add $color $lno.0 $lno_e
 732                                         }
 733                                         $i tag add g$cmit $lno.0 $lno_e
 734                                 }
 735
 736                                 if {$highlight_column eq $cur_w} {
 737                                         if {$highlight_line == -1
 738                                          && [lindex [$w_file yview] 0] == 0} {
 739                                                 $w_file see $lno.0
 740                                                 set highlight_line $lno
 741                                         }
 742                                         if {$highlight_line == $lno} {
 743                                                 _showcommit $this $cur_w $lno
 744                                         }
 745                                 }
 746
 747                                 incr n -1
 748                                 incr lno
 749                                 incr oln
 750                                 incr blame_lines
 751                         }
 752
 753                         while {
 754                            $cmit eq [lindex $line_data $lno 0]
 755                         && $file eq [lindex $line_data $lno 1]
 756                         } {
 757                                 $cur_w delete $lno.0 "$lno.0 lineend"
 758
 759                                 if {$lno == $first_lno} {
 760                                         $cur_w insert $lno.0 $commit_abbr $commit_type
 761                                 } elseif {$lno == [expr {$first_lno + 1}]} {
 762                                         $cur_w insert $lno.0 $author_abbr author_abbr
 763                                 } else {
 764                                         $cur_w insert $lno.0 { |}
 765                                 }
 766
 767                                 if {$cur_w eq $w_amov} {
 768                                         foreach i $w_columns {
 769                                                 for {set g 0} \
 770                                                         {$g < [llength $group_colors]} \
 771                                                         {incr g} {
 772                                                         $i tag remove color$g $lno.0 $lno_e
 773                                                 }
 774                                                 $i tag add $color $lno.0 $lno_e
 775                                         }
 776                                 }
 777
 778                                 incr lno
 779                         }
 780
 781                 } elseif {[regexp {^([a-z-]+) (.*)$} $line line key data]} {
 782                         set header($r_commit,$key) $data
 783                 }
 784         }
 785         $cur_w conf -state disabled
 786
 787         if {[eof $fd]} {
 788                 close $fd
 789                 if {$cur_w eq $w_asim} {
 790                         # Switches for original location detection
 791                         set threshold [get_config gui.copyblamethreshold]
 792                         set original_options [list "-C$threshold"]
 793
 794                         if {![is_config_true gui.fastcopyblame]} {
 795                                 # thorough copy search; insert before the threshold
 796                                 set original_options [linsert $original_options 0 -C]
 797                         }
 798                         if {[git-version >= 1.5.3]} {
 799                                 lappend original_options -w ; # ignore indentation changes
 800                         }
 801
 802                         _exec_blame $this $w_amov @amov_data \
 803                                 $original_options \
 804                                 [mc "Loading original location annotations..."]
 805                 } else {
 806                         set current_fd {}
 807                         $status stop [mc "Annotation complete."]
 808                 }
 809         } else {
 810                 $status update $blame_lines $total_lines
 811         }
 812 } ifdeleted { catch {close $fd} }
 813
 814 method _find_commit_bound {data_list start_idx delta} {
 815         upvar #0 $data_list line_data
 816         set pos $start_idx
 817         set limit       [expr {[llength $line_data] - 1}]
 818         set base_commit [lindex $line_data $pos 0]
 819
 820         while {$pos > 0 && $pos < $limit} {
 821                 set new_pos [expr {$pos + $delta}]
 822                 if {[lindex $line_data $new_pos 0] ne $base_commit} {
 823                         return $pos
 824                 }
 825
 826                 set pos $new_pos
 827         }
 828
 829         return $pos
 830 }
 831
 832 method _fullcopyblame {} {
 833         if {$current_fd ne {}} {
 834                 tk_messageBox \
 835                         -icon error \
 836                         -type ok \
 837                         -title [mc "Busy"] \
 838                         -message [mc "Annotation process is already running."]
 839
 840                 return
 841         }
 842
 843         # Switches for original location detection
 844         set threshold [get_config gui.copyblamethreshold]
 845         set original_options [list -C -C "-C$threshold"]
 846
 847         if {[git-version >= 1.5.3]} {
 848                 lappend original_options -w ; # ignore indentation changes
 849         }
 850
 851         # Find the line range
 852         set pos @$::cursorX,$::cursorY
 853         set lno [lindex [split [$::cursorW index $pos] .] 0]
 854         set min_amov_lno [_find_commit_bound $this @amov_data $lno -1]
 855         set max_amov_lno [_find_commit_bound $this @amov_data $lno 1]
 856         set min_asim_lno [_find_commit_bound $this @asim_data $lno -1]
 857         set max_asim_lno [_find_commit_bound $this @asim_data $lno 1]
 858
 859         if {$min_asim_lno < $min_amov_lno} {
 860                 set min_amov_lno $min_asim_lno
 861         }
 862
 863         if {$max_asim_lno > $max_amov_lno} {
 864                 set max_amov_lno $max_asim_lno
 865         }
 866
 867         lappend original_options -L "$min_amov_lno,$max_amov_lno"
 868
 869         # Clear lines
 870         for {set i $min_amov_lno} {$i <= $max_amov_lno} {incr i} {
 871                 lset amov_data $i [list ]
 872         }
 873
 874         # Start the back-end process
 875         _exec_blame $this $w_amov @amov_data \
 876                 $original_options \
 877                 [mc "Running thorough copy detection..."]
 878 }
 879
 880 method _click {cur_w pos} {
 881         set lno [lindex [split [$cur_w index $pos] .] 0]
 882         _showcommit $this $cur_w $lno
 883 }
 884
 885 method _setencoding {enc} {
 886         force_path_encoding $path $enc
 887         _load $this [list \
 888                 $highlight_column \
 889                 $highlight_line \
 890                 [lindex [$w_file xview] 0] \
 891                 [lindex [$w_file yview] 0] \
 892                 ]
 893 }
 894
 895 method _load_commit {cur_w cur_d pos} {
 896         upvar #0 $cur_d line_data
 897         set lno [lindex [split [$cur_w index $pos] .] 0]
 898         set dat [lindex $line_data $lno]
 899         if {$dat ne {}} {
 900                 _load_new_commit $this  \
 901                         [lindex $dat 0] \
 902                         [lindex $dat 1] \
 903                         [list [lindex $dat 2]]
 904         }
 905 }
 906
 907 method _load_new_commit {new_commit new_path jump} {
 908         lappend history [list \
 909                 $commit $path \
 910                 $highlight_column \
 911                 $highlight_line \
 912                 [lindex [$w_file xview] 0] \
 913                 [lindex [$w_file yview] 0] \
 914                 ]
 915
 916         set commit $new_commit
 917         set path   $new_path
 918         _load $this $jump
 919 }
 920
 921 method _showcommit {cur_w lno} {
 922         global repo_config
 923         variable active_color
 924
 925         if {$highlight_commit ne {}} {
 926                 foreach i $w_columns {
 927                         $i tag conf g$highlight_commit -background {}
 928                         $i tag lower g$highlight_commit
 929                 }
 930         }
 931
 932         if {$cur_w eq $w_asim} {
 933                 set dat [lindex $asim_data $lno]
 934                 set highlight_column $w_asim
 935         } else {
 936                 set dat [lindex $amov_data $lno]
 937                 set highlight_column $w_amov
 938         }
 939
 940         $w_cviewer conf -state normal
 941         $w_cviewer delete 0.0 end
 942
 943         if {$dat eq {}} {
 944                 set cmit {}
 945                 $w_cviewer insert end [mc "Loading annotation..."] still_loading
 946         } else {
 947                 set cmit [lindex $dat 0]
 948                 set file [lindex $dat 1]
 949
 950                 foreach i $w_columns {
 951                         $i tag conf g$cmit -background $active_color
 952                         $i tag raise g$cmit
 953                         if {$i eq $w_file} {
 954                                 $w_file tag raise found
 955                         }
 956                         $i tag raise sel
 957                 }
 958
 959                 set author_name {}
 960                 set author_email {}
 961                 set author_time {}
 962                 catch {set author_name $header($cmit,author)}
 963                 catch {set author_email $header($cmit,author-mail)}
 964                 catch {set author_time [format_date $header($cmit,author-time)]}
 965
 966                 set committer_name {}
 967                 set committer_email {}
 968                 set committer_time {}
 969                 catch {set committer_name $header($cmit,committer)}
 970                 catch {set committer_email $header($cmit,committer-mail)}
 971                 catch {set committer_time [format_date $header($cmit,committer-time)]}
 972
 973                 if {[catch {set msg $header($cmit,message)}]} {
 974                         set msg {}
 975                         catch {
 976                                 set fd [git_read cat-file commit $cmit]
 977                                 fconfigure $fd -encoding binary -translation lf
 978                                 # By default commits are assumed to be in utf-8
 979                                 set enc utf-8
 980                                 while {[gets $fd line] > 0} {
 981                                         if {[string match {encoding *} $line]} {
 982                                                 set enc [string tolower [string range $line 9 end]]
 983                                         }
 984                                 }
 985                                 set msg [read $fd]
 986                                 close $fd
 987
 988                                 set enc [tcl_encoding $enc]
 989                                 if {$enc ne {}} {
 990                                         set msg [encoding convertfrom $enc $msg]
 991                                 }
 992                                 set msg [string trim $msg]
 993                         }
 994                         set header($cmit,message) $msg
 995                 }
 996
 997                 $w_cviewer insert end "commit $cmit\n" header_key
 998                 $w_cviewer insert end [strcat [mc "Author:"] "\t"] header_key
 999                 $w_cviewer insert end "$author_name $author_email" header_val
1000                 $w_cviewer insert end "  $author_time\n" header_val
1001
1002                 $w_cviewer insert end [strcat [mc "Committer:"] "\t"] header_key
1003                 $w_cviewer insert end "$committer_name $committer_email" header_val
1004                 $w_cviewer insert end "  $committer_time\n" header_val
1005
1006                 if {$file ne $path} {
1007                         $w_cviewer insert end [strcat [mc "Original File:"] "\t"] header_key
1008                         $w_cviewer insert end "[escape_path $file]\n" header_val
1009                 }
1010
1011                 $w_cviewer insert end "\n$msg"
1012         }
1013         $w_cviewer conf -state disabled
1014
1015         set highlight_line $lno
1016         set highlight_commit $cmit
1017
1018         if {[lsearch -exact $tooltip_commit $highlight_commit] != -1} {
1019                 _hide_tooltip $this
1020         }
1021 }
1022
1023 method _get_click_amov_info {} {
1024         set pos @$::cursorX,$::cursorY
1025         set lno [lindex [split [$::cursorW index $pos] .] 0]
1026         return [lindex $amov_data $lno]
1027 }
1028
1029 method _copycommit {} {
1030         set dat [_get_click_amov_info $this]
1031         if {$dat ne {}} {
1032                 clipboard clear
1033                 clipboard append \
1034                         -format STRING \
1035                         -type STRING \
1036                         -- [lindex $dat 0]
1037         }
1038 }
1039
1040 method _format_offset_date {base offset} {
1041         set exval [expr {$base + $offset*24*60*60}]
1042         return [clock format $exval -format {%Y-%m-%d}]
1043 }
1044
1045 method _gitkcommit {} {
1046         global nullid
1047
1048         set dat [_get_click_amov_info $this]
1049         if {$dat ne {}} {
1050                 set cmit [lindex $dat 0]
1051
1052                 # If the line belongs to the working copy, use HEAD instead
1053                 if {$cmit eq $nullid} {
1054                         if {[catch {set cmit [git rev-parse --verify HEAD]} err]} {
1055                                 error_popup [strcat [mc "Cannot find HEAD commit:"] "\n\n$err"]
1056                                 return;
1057                         }
1058                 }
1059
1060                 set radius [get_config gui.blamehistoryctx]
1061                 set cmdline [list --select-commit=$cmit]
1062
1063                 if {$radius > 0} {
1064                         set author_time {}
1065                         set committer_time {}
1066
1067                         catch {set author_time $header($cmit,author-time)}
1068                         catch {set committer_time $header($cmit,committer-time)}
1069
1070                         if {$committer_time eq {}} {
1071                                 set committer_time $author_time
1072                         }
1073
1074                         set after_time [_format_offset_date $this $committer_time [expr {-$radius}]]
1075                         set before_time [_format_offset_date $this $committer_time $radius]
1076
1077                         lappend cmdline --after=$after_time --before=$before_time
1078                 }
1079
1080                 lappend cmdline $cmit
1081
1082                 set base_rev "HEAD"
1083                 if {$commit ne {}} {
1084                         set base_rev $commit
1085                 }
1086
1087                 if {$base_rev ne $cmit} {
1088                         lappend cmdline $base_rev
1089                 }
1090
1091                 do_gitk $cmdline
1092         }
1093 }
1094
1095 method _blameparent {} {
1096         global nullid
1097
1098         set dat [_get_click_amov_info $this]
1099         if {$dat ne {}} {
1100                 set cmit [lindex $dat 0]
1101                 set new_path [lindex $dat 1]
1102
1103                 # Allow using Blame Parent on lines modified in the working copy
1104                 if {$cmit eq $nullid} {
1105                         set parent_ref "HEAD"
1106                 } else {
1107                         set parent_ref "$cmit^"
1108                 }
1109                 if {[catch {set cparent [git rev-parse --verify $parent_ref]} err]} {
1110                         error_popup [strcat [mc "Cannot find parent commit:"] "\n\n$err"]
1111                         return;
1112                 }
1113
1114                 _kill $this
1115
1116                 # Generate a diff between the commit and its parent,
1117                 # and use the hunks to update the line number.
1118                 # Request zero context to simplify calculations.
1119                 if {$cmit eq $nullid} {
1120                         set diffcmd [list diff-index --unified=0 $cparent -- $new_path]
1121                 } else {
1122                         set diffcmd [list diff-tree --unified=0 $cparent $cmit -- $new_path]
1123                 }
1124                 if {[catch {set fd [eval git_read $diffcmd]} err]} {
1125                         $status stop [mc "Unable to display parent"]
1126                         error_popup [strcat [mc "Error loading diff:"] "\n\n$err"]
1127                         return
1128                 }
1129
1130                 set r_orig_line [lindex $dat 2]
1131
1132                 fconfigure $fd \
1133                         -blocking 0 \
1134                         -encoding binary \
1135                         -translation binary
1136                 fileevent $fd readable [cb _read_diff_load_commit \
1137                         $fd $cparent $new_path $r_orig_line]
1138                 set current_fd $fd
1139         }
1140 }
1141
1142 method _read_diff_load_commit {fd cparent new_path tline} {
1143         if {$fd ne $current_fd} {
1144                 catch {close $fd}
1145                 return
1146         }
1147
1148         while {[gets $fd line] >= 0} {
1149                 if {[regexp {^@@ -(\d+)(,(\d+))? \+(\d+)(,(\d+))? @@} $line line \
1150                         old_line osz old_size new_line nsz new_size]} {
1151
1152                         if {$osz eq {}} { set old_size 1 }
1153                         if {$nsz eq {}} { set new_size 1 }
1154
1155                         if {$new_line <= $tline} {
1156                                 if {[expr {$new_line + $new_size}] > $tline} {
1157                                         # Target line within the hunk
1158                                         set line_shift [expr {
1159                                                 ($new_size-$old_size)*($tline-$new_line)/$new_size
1160                                                 }]
1161                                 } else {
1162                                         set line_shift [expr {$new_size-$old_size}]
1163                                 }
1164
1165                                 set r_orig_line [expr {$r_orig_line - $line_shift}]
1166                         }
1167                 }
1168         }
1169
1170         if {[eof $fd]} {
1171                 close $fd;
1172                 set current_fd {}
1173
1174                 _load_new_commit $this  \
1175                         $cparent        \
1176                         $new_path       \
1177                         [list $r_orig_line]
1178         }
1179 } ifdeleted { catch {close $fd} }
1180
1181 method _show_tooltip {cur_w pos} {
1182         if {$tooltip_wm ne {}} {
1183                 _open_tooltip $this $cur_w
1184         } elseif {$tooltip_timer eq {}} {
1185                 set tooltip_timer [after 1000 [cb _open_tooltip $cur_w]]
1186         }
1187 }
1188
1189 method _open_tooltip {cur_w} {
1190         set tooltip_timer {}
1191         set pos_x [winfo pointerx $cur_w]
1192         set pos_y [winfo pointery $cur_w]
1193         if {[winfo containing $pos_x $pos_y] ne $cur_w} {
1194                 _hide_tooltip $this
1195                 return
1196         }
1197
1198         if {$tooltip_wm ne "$cur_w.tooltip"} {
1199                 _hide_tooltip $this
1200
1201                 set tooltip_wm [toplevel $cur_w.tooltip -borderwidth 1]
1202                 wm overrideredirect $tooltip_wm 1
1203                 wm transient $tooltip_wm [winfo toplevel $cur_w]
1204                 set tooltip_t $tooltip_wm.label
1205                 text $tooltip_t \
1206                         -takefocus 0 \
1207                         -highlightthickness 0 \
1208                         -relief flat \
1209                         -borderwidth 0 \
1210                         -wrap none \
1211                         -background lightyellow \
1212                         -foreground black
1213                 $tooltip_t tag conf section_header -font font_uibold
1214                 pack $tooltip_t
1215         } else {
1216                 $tooltip_t conf -state normal
1217                 $tooltip_t delete 0.0 end
1218         }
1219
1220         set pos @[join [list \
1221                 [expr {$pos_x - [winfo rootx $cur_w]}] \
1222                 [expr {$pos_y - [winfo rooty $cur_w]}]] ,]
1223         set lno [lindex [split [$cur_w index $pos] .] 0]
1224         if {$cur_w eq $w_amov} {
1225                 set dat [lindex $amov_data $lno]
1226                 set org {}
1227         } else {
1228                 set dat [lindex $asim_data $lno]
1229                 set org [lindex $amov_data $lno]
1230         }
1231
1232         if {$dat eq {}} {
1233                 _hide_tooltip $this
1234                 return
1235         }
1236
1237         set cmit [lindex $dat 0]
1238         set tooltip_commit [list $cmit]
1239
1240         set author_name {}
1241         set summary     {}
1242         set author_time {}
1243         catch {set author_name $header($cmit,author)}
1244         catch {set summary     $header($cmit,summary)}
1245         catch {set author_time [format_date $header($cmit,author-time)]}
1246
1247         $tooltip_t insert end "commit $cmit\n"
1248         $tooltip_t insert end "$author_name  $author_time\n"
1249         $tooltip_t insert end "$summary"
1250
1251         if {$org ne {} && [lindex $org 0] ne $cmit} {
1252                 set save [$tooltip_t get 0.0 end]
1253                 $tooltip_t delete 0.0 end
1254
1255                 set cmit [lindex $org 0]
1256                 set file [lindex $org 1]
1257                 lappend tooltip_commit $cmit
1258
1259                 set author_name {}
1260                 set summary     {}
1261                 set author_time {}
1262                 catch {set author_name $header($cmit,author)}
1263                 catch {set summary     $header($cmit,summary)}
1264                 catch {set author_time [format_date $header($cmit,author-time)]}
1265
1266                 $tooltip_t insert end [strcat [mc "Originally By:"] "\n"] section_header
1267                 $tooltip_t insert end "commit $cmit\n"
1268                 $tooltip_t insert end "$author_name  $author_time\n"
1269                 $tooltip_t insert end "$summary\n"
1270
1271                 if {$file ne $path} {
1272                         $tooltip_t insert end [strcat [mc "In File:"] " "] section_header
1273                         $tooltip_t insert end "$file\n"
1274                 }
1275
1276                 $tooltip_t insert end "\n"
1277                 $tooltip_t insert end [strcat [mc "Copied Or Moved Here By:"] "\n"] section_header
1278                 $tooltip_t insert end $save
1279         }
1280
1281         $tooltip_t conf -state disabled
1282         _position_tooltip $this
1283
1284         # On MacOS raising a window causes it to acquire focus.
1285         # Tk 8.5 on MacOS seems to properly support wm transient,
1286         # so we can safely counter the effect there.
1287         if {$::have_tk85 && [is_MacOSX]} {
1288                 update
1289                 if {$w eq {}} {
1290                         raise .
1291                 } else {
1292                         raise $w
1293                 }
1294         }
1295 }
1296
1297 method _position_tooltip {} {
1298         set max_h [lindex [split [$tooltip_t index end] .] 0]
1299         set max_w 0
1300         for {set i 1} {$i <= $max_h} {incr i} {
1301                 set c [lindex [split [$tooltip_t index "$i.0 lineend"] .] 1]
1302                 if {$c > $max_w} {set max_w $c}
1303         }
1304         $tooltip_t conf -width $max_w -height $max_h
1305
1306         set req_w [winfo reqwidth  $tooltip_t]
1307         set req_h [winfo reqheight $tooltip_t]
1308         set pos_x [expr {[winfo pointerx .] +  5}]
1309         set pos_y [expr {[winfo pointery .] + 10}]
1310
1311         set g "${req_w}x${req_h}"
1312         if {[tk windowingsystem] eq "win32" || $pos_x >= 0} {append g +}
1313         append g $pos_x
1314         if {[tk windowingsystem] eq "win32" || $pos_y >= 0} {append g +}
1315         append g $pos_y
1316
1317         wm geometry $tooltip_wm $g
1318         if {![is_MacOSX]} {
1319                 raise $tooltip_wm
1320         }
1321 }
1322
1323 method _hide_tooltip {} {
1324         if {$tooltip_wm ne {}} {
1325                 destroy $tooltip_wm
1326                 set tooltip_wm {}
1327                 set tooltip_commit {}
1328         }
1329         if {$tooltip_timer ne {}} {
1330                 after cancel $tooltip_timer
1331                 set tooltip_timer {}
1332         }
1333 }
1334
1335 method _resize {new_height} {
1336         set diff [expr {$new_height - $old_height}]
1337         if {$diff == 0} return
1338
1339         set my [expr {[winfo height $w.file_pane] - 25}]
1340         set o [$w.file_pane sash coord 0]
1341         set ox [lindex $o 0]
1342         set oy [expr {[lindex $o 1] + $diff}]
1343         if {$oy < 0}   {set oy 0}
1344         if {$oy > $my} {set oy $my}
1345         $w.file_pane sash place 0 $ox $oy
1346
1347         set old_height $new_height
1348 }
1349
1350 }