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 status     ; # status mega-widget instance
  25 field old_height ; # last known height of $w.file_pane
  26
  27 # Tk UI colors
  28 #
  29 variable active_color #c0edc5
  30 variable group_colors {
  31         #d6d6d6
  32         #e1e1e1
  33         #ececec
  34 }
  35
  36 # Current blame data; cleared/reset on each load
  37 #
  38 field commit               ; # input commit to blame
  39 field path                 ; # input filename to view in $commit
  40
  41 field current_fd        {} ; # background process running
  42 field highlight_line    -1 ; # current line selected
  43 field highlight_column  {} ; # current commit column selected
  44 field highlight_commit  {} ; # sha1 of commit selected
  45
  46 field total_lines       0  ; # total length of file
  47 field blame_lines       0  ; # number of lines computed
  48 field amov_data            ; # list of {commit origfile origline}
  49 field asim_data            ; # list of {commit origfile origline}
  50
  51 field r_commit             ; # commit currently being parsed
  52 field r_orig_line          ; # original line number
  53 field r_final_line         ; # final line number
  54 field r_line_count         ; # lines in this region
  55
  56 field tooltip_wm        {} ; # Current tooltip toplevel, if open
  57 field tooltip_t         {} ; # Text widget in $tooltip_wm
  58 field tooltip_timer     {} ; # Current timer event for our tooltip
  59 field tooltip_commit    {} ; # Commit(s) in tooltip
  60
  61 constructor new {i_commit i_path} {
  62         global cursor_ptr
  63         variable active_color
  64         variable group_colors
  65
  66         set commit $i_commit
  67         set path   $i_path
  68
  69         make_toplevel top w
  70         wm title $top [append "[appname] ([reponame]): " [mc "File Viewer"]]
  71
  72         frame $w.header -background gold
  73         label $w.header.commit_l \
  74                 -text [mc "Commit:"] \
  75                 -background gold \
  76                 -foreground black \
  77                 -anchor w \
  78                 -justify left
  79         set w_back $w.header.commit_b
  80         label $w_back \
  81                 -image ::blame::img_back_arrow \
  82                 -borderwidth 0 \
  83                 -relief flat \
  84                 -state disabled \
  85                 -background gold \
  86                 -foreground black \
  87                 -activebackground gold
  88         bind $w_back <Button-1> "
  89                 if {\[$w_back cget -state\] eq {normal}} {
  90                         [cb _history_menu]
  91                 }
  92                 "
  93         label $w.header.commit \
  94                 -textvariable @commit \
  95                 -background gold \
  96                 -foreground black \
  97                 -anchor w \
  98                 -justify left
  99         label $w.header.path_l \
 100                 -text [mc "File:"] \
 101                 -background gold \
 102                 -foreground black \
 103                 -anchor w \
 104                 -justify left
 105         set w_path $w.header.path
 106         label $w_path \
 107                 -background gold \
 108                 -foreground black \
 109                 -anchor w \
 110                 -justify left
 111         pack $w.header.commit_l -side left
 112         pack $w_back -side left
 113         pack $w.header.commit -side left
 114         pack $w_path -fill x -side right
 115         pack $w.header.path_l -side right
 116
 117         panedwindow $w.file_pane -orient vertical
 118         frame $w.file_pane.out
 119         frame $w.file_pane.cm
 120         $w.file_pane add $w.file_pane.out \
 121                 -sticky nsew \
 122                 -minsize 100 \
 123                 -height 100 \
 124                 -width 100
 125         $w.file_pane add $w.file_pane.cm \
 126                 -sticky nsew \
 127                 -minsize 25 \
 128                 -height 25 \
 129                 -width 100
 130
 131         set w_line $w.file_pane.out.linenumber_t
 132         text $w_line \
 133                 -takefocus 0 \
 134                 -highlightthickness 0 \
 135                 -padx 0 -pady 0 \
 136                 -background white \
 137                 -foreground black \
 138                 -borderwidth 0 \
 139                 -state disabled \
 140                 -wrap none \
 141                 -height 40 \
 142                 -width 6 \
 143                 -font font_diff
 144         $w_line tag conf linenumber -justify right -rmargin 5
 145
 146         set w_amov $w.file_pane.out.amove_t
 147         text $w_amov \
 148                 -takefocus 0 \
 149                 -highlightthickness 0 \
 150                 -padx 0 -pady 0 \
 151                 -background white \
 152                 -foreground black \
 153                 -borderwidth 0 \
 154                 -state disabled \
 155                 -wrap none \
 156                 -height 40 \
 157                 -width 5 \
 158                 -font font_diff
 159         $w_amov tag conf author_abbr -justify right -rmargin 5
 160         $w_amov tag conf curr_commit
 161         $w_amov tag conf prior_commit -foreground blue -underline 1
 162         $w_amov tag bind prior_commit \
 163                 <Button-1> \
 164                 "[cb _load_commit $w_amov @amov_data @%x,%y];break"
 165
 166         set w_asim $w.file_pane.out.asimple_t
 167         text $w_asim \
 168                 -takefocus 0 \
 169                 -highlightthickness 0 \
 170                 -padx 0 -pady 0 \
 171                 -background white \
 172                 -foreground black \
 173                 -borderwidth 0 \
 174                 -state disabled \
 175                 -wrap none \
 176                 -height 40 \
 177                 -width 4 \
 178                 -font font_diff
 179         $w_asim tag conf author_abbr -justify right
 180         $w_asim tag conf curr_commit
 181         $w_asim tag conf prior_commit -foreground blue -underline 1
 182         $w_asim tag bind prior_commit \
 183                 <Button-1> \
 184                 "[cb _load_commit $w_asim @asim_data @%x,%y];break"
 185
 186         set w_file $w.file_pane.out.file_t
 187         text $w_file \
 188                 -takefocus 0 \
 189                 -highlightthickness 0 \
 190                 -padx 0 -pady 0 \
 191                 -background white \
 192                 -foreground black \
 193                 -borderwidth 0 \
 194                 -state disabled \
 195                 -wrap none \
 196                 -height 40 \
 197                 -width 80 \
 198                 -xscrollcommand [list $w.file_pane.out.sbx set] \
 199                 -font font_diff
 200
 201         set w_columns [list $w_amov $w_asim $w_line $w_file]
 202
 203         scrollbar $w.file_pane.out.sbx \
 204                 -orient h \
 205                 -command [list $w_file xview]
 206         scrollbar $w.file_pane.out.sby \
 207                 -orient v \
 208                 -command [list scrollbar2many $w_columns yview]
 209         eval grid $w_columns $w.file_pane.out.sby -sticky nsew
 210         grid conf \
 211                 $w.file_pane.out.sbx \
 212                 -column [expr {[llength $w_columns] - 1}] \
 213                 -sticky we
 214         grid columnconfigure \
 215                 $w.file_pane.out \
 216                 [expr {[llength $w_columns] - 1}] \
 217                 -weight 1
 218         grid rowconfigure $w.file_pane.out 0 -weight 1
 219
 220         set w_cviewer $w.file_pane.cm.t
 221         text $w_cviewer \
 222                 -background white \
 223                 -foreground black \
 224                 -borderwidth 0 \
 225                 -state disabled \
 226                 -wrap none \
 227                 -height 10 \
 228                 -width 80 \
 229                 -xscrollcommand [list $w.file_pane.cm.sbx set] \
 230                 -yscrollcommand [list $w.file_pane.cm.sby set] \
 231                 -font font_diff
 232         $w_cviewer tag conf still_loading \
 233                 -font font_uiitalic \
 234                 -justify center
 235         $w_cviewer tag conf header_key \
 236                 -tabs {3c} \
 237                 -background $active_color \
 238                 -font font_uibold
 239         $w_cviewer tag conf header_val \
 240                 -background $active_color \
 241                 -font font_ui
 242         $w_cviewer tag raise sel
 243         scrollbar $w.file_pane.cm.sbx \
 244                 -orient h \
 245                 -command [list $w_cviewer xview]
 246         scrollbar $w.file_pane.cm.sby \
 247                 -orient v \
 248                 -command [list $w_cviewer yview]
 249         pack $w.file_pane.cm.sby -side right -fill y
 250         pack $w.file_pane.cm.sbx -side bottom -fill x
 251         pack $w_cviewer -expand 1 -fill both
 252
 253         set status [::status_bar::new $w.status]
 254
 255         menu $w.ctxm -tearoff 0
 256         $w.ctxm add command \
 257                 -label [mc "Copy Commit"] \
 258                 -command [cb _copycommit]
 259         $w.ctxm add command \
 260                 -label [mc "Do Full Copy Detection"] \
 261                 -command [cb _fullcopyblame]
 262         $w.ctxm add command \
 263                 -label [mc "Show History Context"] \
 264                 -command [cb _gitkcommit]
 265         $w.ctxm add command \
 266                 -label [mc "Blame Parent Commit"] \
 267                 -command [cb _blameparent]
 268
 269         foreach i $w_columns {
 270                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
 271                         $i tag conf color$g -background [lindex $group_colors $g]
 272                 }
 273
 274                 $i conf -cursor $cursor_ptr
 275                 $i conf -yscrollcommand [list many2scrollbar \
 276                         $w_columns yview $w.file_pane.out.sby]
 277                 bind $i <Button-1> "
 278                         [cb _hide_tooltip]
 279                         [cb _click $i @%x,%y]
 280                         focus $i
 281                 "
 282                 bind $i <Any-Motion>  [cb _show_tooltip $i @%x,%y]
 283                 bind $i <Any-Enter>   [cb _hide_tooltip]
 284                 bind $i <Any-Leave>   [cb _hide_tooltip]
 285                 bind_button3 $i "
 286                         [cb _hide_tooltip]
 287                         set cursorX %x
 288                         set cursorY %y
 289                         set cursorW %W
 290                         tk_popup $w.ctxm %X %Y
 291                 "
 292                 bind $i <Shift-Tab> "[list focus $w_cviewer];break"
 293                 bind $i <Tab>       "[list focus $w_cviewer];break"
 294         }
 295
 296         foreach i [concat $w_columns $w_cviewer] {
 297                 bind $i <Key-Up>        {catch {%W yview scroll -1 units};break}
 298                 bind $i <Key-Down>      {catch {%W yview scroll  1 units};break}
 299                 bind $i <Key-Left>      {catch {%W xview scroll -1 units};break}
 300                 bind $i <Key-Right>     {catch {%W xview scroll  1 units};break}
 301                 bind $i <Key-k>         {catch {%W yview scroll -1 units};break}
 302                 bind $i <Key-j>         {catch {%W yview scroll  1 units};break}
 303                 bind $i <Key-h>         {catch {%W xview scroll -1 units};break}
 304                 bind $i <Key-l>         {catch {%W xview scroll  1 units};break}
 305                 bind $i <Control-Key-b> {catch {%W yview scroll -1 pages};break}
 306                 bind $i <Control-Key-f> {catch {%W yview scroll  1 pages};break}
 307         }
 308
 309         bind $w_cviewer <Shift-Tab> "[list focus $w_file];break"
 310         bind $w_cviewer <Tab>       "[list focus $w_file];break"
 311         bind $w_cviewer <Button-1> [list focus $w_cviewer]
 312         bind $w_file    <Visibility> [list focus $w_file]
 313
 314         grid configure $w.header -sticky ew
 315         grid configure $w.file_pane -sticky nsew
 316         grid configure $w.status -sticky ew
 317         grid columnconfigure $top 0 -weight 1
 318         grid rowconfigure $top 0 -weight 0
 319         grid rowconfigure $top 1 -weight 1
 320         grid rowconfigure $top 2 -weight 0
 321
 322         set req_w [winfo reqwidth  $top]
 323         set req_h [winfo reqheight $top]
 324         set scr_h [expr {[winfo screenheight $top] - 100}]
 325         if {$req_w < 600} {set req_w 600}
 326         if {$req_h < $scr_h} {set req_h $scr_h}
 327         set g "${req_w}x${req_h}"
 328         wm geometry $top $g
 329         update
 330
 331         set old_height [winfo height $w.file_pane]
 332         $w.file_pane sash place 0 \
 333                 [lindex [$w.file_pane sash coord 0] 0] \
 334                 [expr {int($old_height * 0.70)}]
 335         bind $w.file_pane <Configure> \
 336         "if {{$w.file_pane} eq {%W}} {[cb _resize %h]}"
 337
 338         wm protocol $top WM_DELETE_WINDOW "destroy $top"
 339         bind $top <Destroy> [cb _kill]
 340
 341         _load $this {}
 342 }
 343
 344 method _kill {} {
 345         if {$current_fd ne {}} {
 346                 kill_file_process $current_fd
 347                 catch {close $current_fd}
 348                 set current_fd {}
 349         }
 350 }
 351
 352 method _load {jump} {
 353         variable group_colors
 354
 355         _hide_tooltip $this
 356
 357         if {$total_lines != 0 || $current_fd ne {}} {
 358                 _kill $this
 359
 360                 foreach i $w_columns {
 361                         $i conf -state normal
 362                         $i delete 0.0 end
 363                         foreach g [$i tag names] {
 364                                 if {[regexp {^g[0-9a-f]{40}$} $g]} {
 365                                         $i tag delete $g
 366                                 }
 367                         }
 368                         $i conf -state disabled
 369                 }
 370
 371                 $w_cviewer conf -state normal
 372                 $w_cviewer delete 0.0 end
 373                 $w_cviewer conf -state disabled
 374
 375                 set highlight_line -1
 376                 set highlight_column {}
 377                 set highlight_commit {}
 378                 set total_lines 0
 379         }
 380
 381         if {$history eq {}} {
 382                 $w_back conf -state disabled
 383         } else {
 384                 $w_back conf -state normal
 385         }
 386
 387         # Index 0 is always empty.  There is never line 0 as
 388         # we use only 1 based lines, as that matches both with
 389         # git-blame output and with Tk's text widget.
 390         #
 391         set amov_data [list [list]]
 392         set asim_data [list [list]]
 393
 394         $status show [mc "Reading %s..." "$commit:[escape_path $path]"]
 395         $w_path conf -text [escape_path $path]
 396         if {$commit eq {}} {
 397                 set fd [open $path r]
 398                 fconfigure $fd -eofchar {}
 399         } else {
 400                 set fd [git_read cat-file blob "$commit:$path"]
 401         }
 402         fconfigure $fd -blocking 0 -translation lf -encoding binary
 403         fileevent $fd readable [cb _read_file $fd $jump]
 404         set current_fd $fd
 405 }
 406
 407 method _history_menu {} {
 408         set m $w.backmenu
 409         if {[winfo exists $m]} {
 410                 $m delete 0 end
 411         } else {
 412                 menu $m -tearoff 0
 413         }
 414
 415         for {set i [expr {[llength $history] - 1}]
 416                 } {$i >= 0} {incr i -1} {
 417                 set e [lindex $history $i]
 418                 set c [lindex $e 0]
 419                 set f [lindex $e 1]
 420
 421                 if {[regexp {^[0-9a-f]{40}$} $c]} {
 422                         set t [string range $c 0 8]...
 423                 } elseif {$c eq {}} {
 424                         set t {Working Directory}
 425                 } else {
 426                         set t $c
 427                 }
 428                 if {![catch {set summary $header($c,summary)}]} {
 429                         append t " $summary"
 430                         if {[string length $t] > 70} {
 431                                 set t [string range $t 0 66]...
 432                         }
 433                 }
 434
 435                 $m add command -label $t -command [cb _goback $i]
 436         }
 437         set X [winfo rootx $w_back]
 438         set Y [expr {[winfo rooty $w_back] + [winfo height $w_back]}]
 439         tk_popup $m $X $Y
 440 }
 441
 442 method _goback {i} {
 443         set dat [lindex $history $i]
 444         set history [lrange $history 0 [expr {$i - 1}]]
 445         set commit [lindex $dat 0]
 446         set path [lindex $dat 1]
 447         _load $this [lrange $dat 2 5]
 448 }
 449
 450 method _read_file {fd jump} {
 451         if {$fd ne $current_fd} {
 452                 catch {close $fd}
 453                 return
 454         }
 455
 456         foreach i $w_columns {$i conf -state normal}
 457         while {[gets $fd line] >= 0} {
 458                 regsub "\r\$" $line {} line
 459                 incr total_lines
 460                 lappend amov_data {}
 461                 lappend asim_data {}
 462
 463                 if {$total_lines > 1} {
 464                         foreach i $w_columns {$i insert end "\n"}
 465                 }
 466
 467                 $w_line insert end "$total_lines" linenumber
 468                 $w_file insert end "$line"
 469         }
 470
 471         set ln_wc [expr {[string length $total_lines] + 2}]
 472         if {[$w_line cget -width] < $ln_wc} {
 473                 $w_line conf -width $ln_wc
 474         }
 475
 476         foreach i $w_columns {$i conf -state disabled}
 477
 478         if {[eof $fd]} {
 479                 close $fd
 480
 481                 # If we don't force Tk to update the widgets *right now*
 482                 # none of our jump commands will cause a change in the UI.
 483                 #
 484                 update
 485
 486                 if {[llength $jump] == 1} {
 487                         set highlight_line [lindex $jump 0]
 488                         $w_file see "$highlight_line.0"
 489                 } elseif {[llength $jump] == 4} {
 490                         set highlight_column [lindex $jump 0]
 491                         set highlight_line [lindex $jump 1]
 492                         $w_file xview moveto [lindex $jump 2]
 493                         $w_file yview moveto [lindex $jump 3]
 494                 }
 495
 496                 _exec_blame $this $w_asim @asim_data \
 497                         [list] \
 498                         [mc "Loading copy/move tracking annotations..."]
 499         }
 500 } ifdeleted { catch {close $fd} }
 501
 502 method _exec_blame {cur_w cur_d options cur_s} {
 503         lappend options --incremental
 504         if {$commit eq {}} {
 505                 lappend options --contents $path
 506         } else {
 507                 lappend options $commit
 508         }
 509         lappend options -- $path
 510         set fd [eval git_read --nice blame $options]
 511         fconfigure $fd -blocking 0 -translation lf -encoding binary
 512         fileevent $fd readable [cb _read_blame $fd $cur_w $cur_d]
 513         set current_fd $fd
 514         set blame_lines 0
 515
 516         $status start \
 517                 $cur_s \
 518                 [mc "lines annotated"]
 519 }
 520
 521 method _read_blame {fd cur_w cur_d} {
 522         upvar #0 $cur_d line_data
 523         variable group_colors
 524
 525         if {$fd ne $current_fd} {
 526                 catch {close $fd}
 527                 return
 528         }
 529
 530         $cur_w conf -state normal
 531         while {[gets $fd line] >= 0} {
 532                 if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
 533                         cmit original_line final_line line_count]} {
 534                         set r_commit     $cmit
 535                         set r_orig_line  $original_line
 536                         set r_final_line $final_line
 537                         set r_line_count $line_count
 538                 } elseif {[string match {filename *} $line]} {
 539                         set file [string range $line 9 end]
 540                         set n    $r_line_count
 541                         set lno  $r_final_line
 542                         set oln  $r_orig_line
 543                         set cmit $r_commit
 544
 545                         if {[regexp {^0{40}$} $cmit]} {
 546                                 set commit_abbr work
 547                                 set commit_type curr_commit
 548                         } elseif {$cmit eq $commit} {
 549                                 set commit_abbr this
 550                                 set commit_type curr_commit
 551                         } else {
 552                                 set commit_type prior_commit
 553                                 set commit_abbr [string range $cmit 0 3]
 554                         }
 555
 556                         set author_abbr {}
 557                         set a_name {}
 558                         catch {set a_name $header($cmit,author)}
 559                         while {$a_name ne {}} {
 560                                 if {$author_abbr ne {}
 561                                         && [string index $a_name 0] eq {'}} {
 562                                         regsub {^'[^']+'\s+} $a_name {} a_name
 563                                 }
 564                                 if {![regexp {^([[:upper:]])} $a_name _a]} break
 565                                 append author_abbr $_a
 566                                 unset _a
 567                                 if {![regsub \
 568                                         {^[[:upper:]][^\s]*\s+} \
 569                                         $a_name {} a_name ]} break
 570                         }
 571                         if {$author_abbr eq {}} {
 572                                 set author_abbr { |}
 573                         } else {
 574                                 set author_abbr [string range $author_abbr 0 3]
 575                         }
 576                         unset a_name
 577
 578                         set first_lno $lno
 579                         while {
 580                            $first_lno > 1
 581                         && $cmit eq [lindex $line_data [expr {$first_lno - 1}] 0]
 582                         && $file eq [lindex $line_data [expr {$first_lno - 1}] 1]
 583                         } {
 584                                 incr first_lno -1
 585                         }
 586
 587                         set color {}
 588                         if {$first_lno < $lno} {
 589                                 foreach g [$w_file tag names $first_lno.0] {
 590                                         if {[regexp {^color[0-9]+$} $g]} {
 591                                                 set color $g
 592                                                 break
 593                                         }
 594                                 }
 595                         } else {
 596                                 set i [lsort [concat \
 597                                         [$w_file tag names "[expr {$first_lno - 1}].0"] \
 598                                         [$w_file tag names "[expr {$lno + $n}].0"] \
 599                                         ]]
 600                                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
 601                                         if {[lsearch -sorted -exact $i color$g] == -1} {
 602                                                 set color color$g
 603                                                 break
 604                                         }
 605                                 }
 606                         }
 607                         if {$color eq {}} {
 608                                 set color color0
 609                         }
 610
 611                         while {$n > 0} {
 612                                 set lno_e "$lno.0 lineend + 1c"
 613                                 if {[lindex $line_data $lno] ne {}} {
 614                                         set g [lindex $line_data $lno 0]
 615                                         foreach i $w_columns {
 616                                                 $i tag remove g$g $lno.0 $lno_e
 617                                         }
 618                                 }
 619                                 lset line_data $lno [list $cmit $file $oln]
 620
 621                                 $cur_w delete $lno.0 "$lno.0 lineend"
 622                                 if {$lno == $first_lno} {
 623                                         $cur_w insert $lno.0 $commit_abbr $commit_type
 624                                 } elseif {$lno == [expr {$first_lno + 1}]} {
 625                                         $cur_w insert $lno.0 $author_abbr author_abbr
 626                                 } else {
 627                                         $cur_w insert $lno.0 { |}
 628                                 }
 629
 630                                 foreach i $w_columns {
 631                                         if {$cur_w eq $w_amov} {
 632                                                 for {set g 0} \
 633                                                         {$g < [llength $group_colors]} \
 634                                                         {incr g} {
 635                                                         $i tag remove color$g $lno.0 $lno_e
 636                                                 }
 637                                                 $i tag add $color $lno.0 $lno_e
 638                                         }
 639                                         $i tag add g$cmit $lno.0 $lno_e
 640                                 }
 641
 642                                 if {$highlight_column eq $cur_w} {
 643                                         if {$highlight_line == -1
 644                                          && [lindex [$w_file yview] 0] == 0} {
 645                                                 $w_file see $lno.0
 646                                                 set highlight_line $lno
 647                                         }
 648                                         if {$highlight_line == $lno} {
 649                                                 _showcommit $this $cur_w $lno
 650                                         }
 651                                 }
 652
 653                                 incr n -1
 654                                 incr lno
 655                                 incr oln
 656                                 incr blame_lines
 657                         }
 658
 659                         while {
 660                            $cmit eq [lindex $line_data $lno 0]
 661                         && $file eq [lindex $line_data $lno 1]
 662                         } {
 663                                 $cur_w delete $lno.0 "$lno.0 lineend"
 664
 665                                 if {$lno == $first_lno} {
 666                                         $cur_w insert $lno.0 $commit_abbr $commit_type
 667                                 } elseif {$lno == [expr {$first_lno + 1}]} {
 668                                         $cur_w insert $lno.0 $author_abbr author_abbr
 669                                 } else {
 670                                         $cur_w insert $lno.0 { |}
 671                                 }
 672
 673                                 if {$cur_w eq $w_amov} {
 674                                         foreach i $w_columns {
 675                                                 for {set g 0} \
 676                                                         {$g < [llength $group_colors]} \
 677                                                         {incr g} {
 678                                                         $i tag remove color$g $lno.0 $lno_e
 679                                                 }
 680                                                 $i tag add $color $lno.0 $lno_e
 681                                         }
 682                                 }
 683
 684                                 incr lno
 685                         }
 686
 687                 } elseif {[regexp {^([a-z-]+) (.*)$} $line line key data]} {
 688                         set header($r_commit,$key) $data
 689                 }
 690         }
 691         $cur_w conf -state disabled
 692
 693         if {[eof $fd]} {
 694                 close $fd
 695                 if {$cur_w eq $w_asim} {
 696                         # Switches for original location detection
 697                         set threshold [get_config gui.copyblamethreshold]
 698                         set original_options [list "-C$threshold"]
 699
 700                         if {![is_config_true gui.fastcopyblame]} {
 701                                 # thorough copy search; insert before the threshold
 702                                 set original_options [linsert $original_options 0 -C]
 703                         }
 704                         if {[git-version >= 1.5.3]} {
 705                                 lappend original_options -w ; # ignore indentation changes
 706                         }
 707
 708                         _exec_blame $this $w_amov @amov_data \
 709                                 $original_options \
 710                                 [mc "Loading original location annotations..."]
 711                 } else {
 712                         set current_fd {}
 713                         $status stop [mc "Annotation complete."]
 714                 }
 715         } else {
 716                 $status update $blame_lines $total_lines
 717         }
 718 } ifdeleted { catch {close $fd} }
 719
 720 method _find_commit_bound {data_list start_idx delta} {
 721         upvar #0 $data_list line_data
 722         set pos $start_idx
 723         set limit       [expr {[llength $line_data] - 1}]
 724         set base_commit [lindex $line_data $pos 0]
 725
 726         while {$pos > 0 && $pos < $limit} {
 727                 set new_pos [expr {$pos + $delta}]
 728                 if {[lindex $line_data $new_pos 0] ne $base_commit} {
 729                         return $pos
 730                 }
 731
 732                 set pos $new_pos
 733         }
 734
 735         return $pos
 736 }
 737
 738 method _fullcopyblame {} {
 739         if {$current_fd ne {}} {
 740                 tk_messageBox \
 741                         -icon error \
 742                         -type ok \
 743                         -title [mc "Busy"] \
 744                         -message [mc "Annotation process is already running."]
 745
 746                 return
 747         }
 748
 749         # Switches for original location detection
 750         set threshold [get_config gui.copyblamethreshold]
 751         set original_options [list -C -C "-C$threshold"]
 752
 753         if {[git-version >= 1.5.3]} {
 754                 lappend original_options -w ; # ignore indentation changes
 755         }
 756
 757         # Find the line range
 758         set pos @$::cursorX,$::cursorY
 759         set lno [lindex [split [$::cursorW index $pos] .] 0]
 760         set min_amov_lno [_find_commit_bound $this @amov_data $lno -1]
 761         set max_amov_lno [_find_commit_bound $this @amov_data $lno 1]
 762         set min_asim_lno [_find_commit_bound $this @asim_data $lno -1]
 763         set max_asim_lno [_find_commit_bound $this @asim_data $lno 1]
 764
 765         if {$min_asim_lno < $min_amov_lno} {
 766                 set min_amov_lno $min_asim_lno
 767         }
 768
 769         if {$max_asim_lno > $max_amov_lno} {
 770                 set max_amov_lno $max_asim_lno
 771         }
 772
 773         lappend original_options -L "$min_amov_lno,$max_amov_lno"
 774
 775         # Clear lines
 776         for {set i $min_amov_lno} {$i <= $max_amov_lno} {incr i} {
 777                 lset amov_data $i [list ]
 778         }
 779
 780         # Start the back-end process
 781         _exec_blame $this $w_amov @amov_data \
 782                 $original_options \
 783                 [mc "Running thorough copy detection..."]
 784 }
 785
 786 method _click {cur_w pos} {
 787         set lno [lindex [split [$cur_w index $pos] .] 0]
 788         _showcommit $this $cur_w $lno
 789 }
 790
 791 method _load_commit {cur_w cur_d pos} {
 792         upvar #0 $cur_d line_data
 793         set lno [lindex [split [$cur_w index $pos] .] 0]
 794         set dat [lindex $line_data $lno]
 795         if {$dat ne {}} {
 796                 _load_new_commit $this  \
 797                         [lindex $dat 0] \
 798                         [lindex $dat 1] \
 799                         [list [lindex $dat 2]]
 800         }
 801 }
 802
 803 method _load_new_commit {new_commit new_path jump} {
 804         lappend history [list \
 805                 $commit $path \
 806                 $highlight_column \
 807                 $highlight_line \
 808                 [lindex [$w_file xview] 0] \
 809                 [lindex [$w_file yview] 0] \
 810                 ]
 811
 812         set commit $new_commit
 813         set path   $new_path
 814         _load $this $jump
 815 }
 816
 817 method _showcommit {cur_w lno} {
 818         global repo_config
 819         variable active_color
 820
 821         if {$highlight_commit ne {}} {
 822                 foreach i $w_columns {
 823                         $i tag conf g$highlight_commit -background {}
 824                         $i tag lower g$highlight_commit
 825                 }
 826         }
 827
 828         if {$cur_w eq $w_asim} {
 829                 set dat [lindex $asim_data $lno]
 830                 set highlight_column $w_asim
 831         } else {
 832                 set dat [lindex $amov_data $lno]
 833                 set highlight_column $w_amov
 834         }
 835
 836         $w_cviewer conf -state normal
 837         $w_cviewer delete 0.0 end
 838
 839         if {$dat eq {}} {
 840                 set cmit {}
 841                 $w_cviewer insert end [mc "Loading annotation..."] still_loading
 842         } else {
 843                 set cmit [lindex $dat 0]
 844                 set file [lindex $dat 1]
 845
 846                 foreach i $w_columns {
 847                         $i tag conf g$cmit -background $active_color
 848                         $i tag raise g$cmit
 849                 }
 850
 851                 set author_name {}
 852                 set author_email {}
 853                 set author_time {}
 854                 catch {set author_name $header($cmit,author)}
 855                 catch {set author_email $header($cmit,author-mail)}
 856                 catch {set author_time [format_date $header($cmit,author-time)]}
 857
 858                 set committer_name {}
 859                 set committer_email {}
 860                 set committer_time {}
 861                 catch {set committer_name $header($cmit,committer)}
 862                 catch {set committer_email $header($cmit,committer-mail)}
 863                 catch {set committer_time [format_date $header($cmit,committer-time)]}
 864
 865                 if {[catch {set msg $header($cmit,message)}]} {
 866                         set msg {}
 867                         catch {
 868                                 set fd [git_read cat-file commit $cmit]
 869                                 fconfigure $fd -encoding binary -translation lf
 870                                 if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
 871                                         set enc utf-8
 872                                 }
 873                                 while {[gets $fd line] > 0} {
 874                                         if {[string match {encoding *} $line]} {
 875                                                 set enc [string tolower [string range $line 9 end]]
 876                                         }
 877                                 }
 878                                 set msg [read $fd]
 879                                 close $fd
 880
 881                                 set enc [tcl_encoding $enc]
 882                                 if {$enc ne {}} {
 883                                         set msg [encoding convertfrom $enc $msg]
 884                                         set author_name [encoding convertfrom $enc $author_name]
 885                                         set committer_name [encoding convertfrom $enc $committer_name]
 886                                         set header($cmit,author) $author_name
 887                                         set header($cmit,committer) $committer_name
 888                                         set header($cmit,summary) \
 889                                         [encoding convertfrom $enc $header($cmit,summary)]
 890                                 }
 891                                 set msg [string trim $msg]
 892                         }
 893                         set header($cmit,message) $msg
 894                 }
 895
 896                 $w_cviewer insert end "commit $cmit\n" header_key
 897                 $w_cviewer insert end [strcat [mc "Author:"] "\t"] header_key
 898                 $w_cviewer insert end "$author_name $author_email" header_val
 899                 $w_cviewer insert end "  $author_time\n" header_val
 900
 901                 $w_cviewer insert end [strcat [mc "Committer:"] "\t"] header_key
 902                 $w_cviewer insert end "$committer_name $committer_email" header_val
 903                 $w_cviewer insert end "  $committer_time\n" header_val
 904
 905                 if {$file ne $path} {
 906                         $w_cviewer insert end [strcat [mc "Original File:"] "\t"] header_key
 907                         $w_cviewer insert end "[escape_path $file]\n" header_val
 908                 }
 909
 910                 $w_cviewer insert end "\n$msg"
 911         }
 912         $w_cviewer conf -state disabled
 913
 914         set highlight_line $lno
 915         set highlight_commit $cmit
 916
 917         if {[lsearch -exact $tooltip_commit $highlight_commit] != -1} {
 918                 _hide_tooltip $this
 919         }
 920 }
 921
 922 method _get_click_amov_info {} {
 923         set pos @$::cursorX,$::cursorY
 924         set lno [lindex [split [$::cursorW index $pos] .] 0]
 925         return [lindex $amov_data $lno]
 926 }
 927
 928 method _copycommit {} {
 929         set dat [_get_click_amov_info $this]
 930         if {$dat ne {}} {
 931                 clipboard clear
 932                 clipboard append \
 933                         -format STRING \
 934                         -type STRING \
 935                         -- [lindex $dat 0]
 936         }
 937 }
 938
 939 method _format_offset_date {base offset} {
 940         set exval [expr {$base + $offset*24*60*60}]
 941         return [clock format $exval -format {%Y-%m-%d}]
 942 }
 943
 944 method _gitkcommit {} {
 945         set dat [_get_click_amov_info $this]
 946         if {$dat ne {}} {
 947                 set cmit [lindex $dat 0]
 948                 set radius [get_config gui.blamehistoryctx]
 949                 set cmdline [list --select-commit=$cmit]
 950
 951                 if {$radius > 0} {
 952                         set author_time {}
 953                         set committer_time {}
 954
 955                         catch {set author_time $header($cmit,author-time)}
 956                         catch {set committer_time $header($cmit,committer-time)}
 957
 958                         if {$committer_time eq {}} {
 959                                 set committer_time $author_time
 960                         }
 961
 962                         set after_time [_format_offset_date $this $committer_time [expr {-$radius}]]
 963                         set before_time [_format_offset_date $this $committer_time $radius]
 964
 965                         lappend cmdline --after=$after_time --before=$before_time
 966                 }
 967
 968                 lappend cmdline $cmit
 969
 970                 set base_rev "HEAD"
 971                 if {$commit ne {}} {
 972                         set base_rev $commit
 973                 }
 974
 975                 if {$base_rev ne $cmit} {
 976                         lappend cmdline $base_rev
 977                 }
 978
 979                 do_gitk $cmdline
 980         }
 981 }
 982
 983 method _blameparent {} {
 984         set dat [_get_click_amov_info $this]
 985         if {$dat ne {}} {
 986                 set cmit [lindex $dat 0]
 987
 988                 if {[catch {set cparent [git rev-parse --verify "$cmit^"]}]} {
 989                         error_popup [strcat [mc "Cannot find parent commit:"] "\n\n$err"]
 990                         return;
 991                 }
 992
 993                 _load_new_commit $this  \
 994                         $cparent \
 995                         [lindex $dat 1] \
 996                         [list [lindex $dat 2]]
 997         }
 998 }
 999
1000 method _show_tooltip {cur_w pos} {
1001         if {$tooltip_wm ne {}} {
1002                 _open_tooltip $this $cur_w
1003         } elseif {$tooltip_timer eq {}} {
1004                 set tooltip_timer [after 1000 [cb _open_tooltip $cur_w]]
1005         }
1006 }
1007
1008 method _open_tooltip {cur_w} {
1009         set tooltip_timer {}
1010         set pos_x [winfo pointerx $cur_w]
1011         set pos_y [winfo pointery $cur_w]
1012         if {[winfo containing $pos_x $pos_y] ne $cur_w} {
1013                 _hide_tooltip $this
1014                 return
1015         }
1016
1017         if {$tooltip_wm ne "$cur_w.tooltip"} {
1018                 _hide_tooltip $this
1019
1020                 set tooltip_wm [toplevel $cur_w.tooltip -borderwidth 1]
1021                 wm overrideredirect $tooltip_wm 1
1022                 wm transient $tooltip_wm [winfo toplevel $cur_w]
1023                 set tooltip_t $tooltip_wm.label
1024                 text $tooltip_t \
1025                         -takefocus 0 \
1026                         -highlightthickness 0 \
1027                         -relief flat \
1028                         -borderwidth 0 \
1029                         -wrap none \
1030                         -background lightyellow \
1031                         -foreground black
1032                 $tooltip_t tag conf section_header -font font_uibold
1033                 pack $tooltip_t
1034         } else {
1035                 $tooltip_t conf -state normal
1036                 $tooltip_t delete 0.0 end
1037         }
1038
1039         set pos @[join [list \
1040                 [expr {$pos_x - [winfo rootx $cur_w]}] \
1041                 [expr {$pos_y - [winfo rooty $cur_w]}]] ,]
1042         set lno [lindex [split [$cur_w index $pos] .] 0]
1043         if {$cur_w eq $w_amov} {
1044                 set dat [lindex $amov_data $lno]
1045                 set org {}
1046         } else {
1047                 set dat [lindex $asim_data $lno]
1048                 set org [lindex $amov_data $lno]
1049         }
1050
1051         if {$dat eq {}} {
1052                 _hide_tooltip $this
1053                 return
1054         }
1055
1056         set cmit [lindex $dat 0]
1057         set tooltip_commit [list $cmit]
1058
1059         set author_name {}
1060         set summary     {}
1061         set author_time {}
1062         catch {set author_name $header($cmit,author)}
1063         catch {set summary     $header($cmit,summary)}
1064         catch {set author_time [format_date $header($cmit,author-time)]}
1065
1066         $tooltip_t insert end "commit $cmit\n"
1067         $tooltip_t insert end "$author_name  $author_time\n"
1068         $tooltip_t insert end "$summary"
1069
1070         if {$org ne {} && [lindex $org 0] ne $cmit} {
1071                 set save [$tooltip_t get 0.0 end]
1072                 $tooltip_t delete 0.0 end
1073
1074                 set cmit [lindex $org 0]
1075                 set file [lindex $org 1]
1076                 lappend tooltip_commit $cmit
1077
1078                 set author_name {}
1079                 set summary     {}
1080                 set author_time {}
1081                 catch {set author_name $header($cmit,author)}
1082                 catch {set summary     $header($cmit,summary)}
1083                 catch {set author_time [format_date $header($cmit,author-time)]}
1084
1085                 $tooltip_t insert end [strcat [mc "Originally By:"] "\n"] section_header
1086                 $tooltip_t insert end "commit $cmit\n"
1087                 $tooltip_t insert end "$author_name  $author_time\n"
1088                 $tooltip_t insert end "$summary\n"
1089
1090                 if {$file ne $path} {
1091                         $tooltip_t insert end [strcat [mc "In File:"] " "] section_header
1092                         $tooltip_t insert end "$file\n"
1093                 }
1094
1095                 $tooltip_t insert end "\n"
1096                 $tooltip_t insert end [strcat [mc "Copied Or Moved Here By:"] "\n"] section_header
1097                 $tooltip_t insert end $save
1098         }
1099
1100         $tooltip_t conf -state disabled
1101         _position_tooltip $this
1102 }
1103
1104 method _position_tooltip {} {
1105         set max_h [lindex [split [$tooltip_t index end] .] 0]
1106         set max_w 0
1107         for {set i 1} {$i <= $max_h} {incr i} {
1108                 set c [lindex [split [$tooltip_t index "$i.0 lineend"] .] 1]
1109                 if {$c > $max_w} {set max_w $c}
1110         }
1111         $tooltip_t conf -width $max_w -height $max_h
1112
1113         set req_w [winfo reqwidth  $tooltip_t]
1114         set req_h [winfo reqheight $tooltip_t]
1115         set pos_x [expr {[winfo pointerx .] +  5}]
1116         set pos_y [expr {[winfo pointery .] + 10}]
1117
1118         set g "${req_w}x${req_h}"
1119         if {$pos_x >= 0} {append g +}
1120         append g $pos_x
1121         if {$pos_y >= 0} {append g +}
1122         append g $pos_y
1123
1124         wm geometry $tooltip_wm $g
1125         raise $tooltip_wm
1126 }
1127
1128 method _hide_tooltip {} {
1129         if {$tooltip_wm ne {}} {
1130                 destroy $tooltip_wm
1131                 set tooltip_wm {}
1132                 set tooltip_commit {}
1133         }
1134         if {$tooltip_timer ne {}} {
1135                 after cancel $tooltip_timer
1136                 set tooltip_timer {}
1137         }
1138 }
1139
1140 method _resize {new_height} {
1141         set diff [expr {$new_height - $old_height}]
1142         if {$diff == 0} return
1143
1144         set my [expr {[winfo height $w.file_pane] - 25}]
1145         set o [$w.file_pane sash coord 0]
1146         set ox [lindex $o 0]
1147         set oy [expr {[lindex $o 1] + $diff}]
1148         if {$oy < 0}   {set oy 0}
1149         if {$oy > $my} {set oy $my}
1150         $w.file_pane sash place 0 $ox $oy
1151
1152         set old_height $new_height
1153 }
1154
1155 }