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     ; # text variable bound to status bar
  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 "[appname] ([reponame]): File Viewer"
  71
  72         frame $w.header -background orange
  73         label $w.header.commit_l \
  74                 -text {Commit:} \
  75                 -background orange \
  76                 -anchor w \
  77                 -justify left
  78         set w_back $w.header.commit_b
  79         label $w_back \
  80                 -image ::blame::img_back_arrow \
  81                 -borderwidth 0 \
  82                 -relief flat \
  83                 -state disabled \
  84                 -background orange \
  85                 -activebackground orange
  86         bind $w_back <Button-1> "
  87                 if {\[$w_back cget -state\] eq {normal}} {
  88                         [cb _history_menu]
  89                 }
  90                 "
  91         label $w.header.commit \
  92                 -textvariable @commit \
  93                 -background orange \
  94                 -anchor w \
  95                 -justify left
  96         label $w.header.path_l \
  97                 -text {File:} \
  98                 -background orange \
  99                 -anchor w \
 100                 -justify left
 101         set w_path $w.header.path
 102         label $w_path \
 103                 -background orange \
 104                 -anchor w \
 105                 -justify left
 106         pack $w.header.commit_l -side left
 107         pack $w_back -side left
 108         pack $w.header.commit -side left
 109         pack $w_path -fill x -side right
 110         pack $w.header.path_l -side right
 111
 112         panedwindow $w.file_pane -orient vertical
 113         frame $w.file_pane.out
 114         frame $w.file_pane.cm
 115         $w.file_pane add $w.file_pane.out \
 116                 -sticky nsew \
 117                 -minsize 100 \
 118                 -height 100 \
 119                 -width 100
 120         $w.file_pane add $w.file_pane.cm \
 121                 -sticky nsew \
 122                 -minsize 25 \
 123                 -height 25 \
 124                 -width 100
 125
 126         set w_line $w.file_pane.out.linenumber_t
 127         text $w_line \
 128                 -takefocus 0 \
 129                 -highlightthickness 0 \
 130                 -padx 0 -pady 0 \
 131                 -background white -borderwidth 0 \
 132                 -state disabled \
 133                 -wrap none \
 134                 -height 40 \
 135                 -width 6 \
 136                 -font font_diff
 137         $w_line tag conf linenumber -justify right -rmargin 5
 138
 139         set w_amov $w.file_pane.out.amove_t
 140         text $w_amov \
 141                 -takefocus 0 \
 142                 -highlightthickness 0 \
 143                 -padx 0 -pady 0 \
 144                 -background white -borderwidth 0 \
 145                 -state disabled \
 146                 -wrap none \
 147                 -height 40 \
 148                 -width 5 \
 149                 -font font_diff
 150         $w_amov tag conf author_abbr -justify right -rmargin 5
 151         $w_amov tag conf curr_commit
 152         $w_amov tag conf prior_commit -foreground blue -underline 1
 153         $w_amov tag bind prior_commit \
 154                 <Button-1> \
 155                 "[cb _load_commit $w_amov @amov_data @%x,%y];break"
 156
 157         set w_asim $w.file_pane.out.asimple_t
 158         text $w_asim \
 159                 -takefocus 0 \
 160                 -highlightthickness 0 \
 161                 -padx 0 -pady 0 \
 162                 -background white -borderwidth 0 \
 163                 -state disabled \
 164                 -wrap none \
 165                 -height 40 \
 166                 -width 4 \
 167                 -font font_diff
 168         $w_asim tag conf author_abbr -justify right
 169         $w_asim tag conf curr_commit
 170         $w_asim tag conf prior_commit -foreground blue -underline 1
 171         $w_asim tag bind prior_commit \
 172                 <Button-1> \
 173                 "[cb _load_commit $w_asim @asim_data @%x,%y];break"
 174
 175         set w_file $w.file_pane.out.file_t
 176         text $w_file \
 177                 -takefocus 0 \
 178                 -highlightthickness 0 \
 179                 -padx 0 -pady 0 \
 180                 -background white -borderwidth 0 \
 181                 -state disabled \
 182                 -wrap none \
 183                 -height 40 \
 184                 -width 80 \
 185                 -xscrollcommand [list $w.file_pane.out.sbx set] \
 186                 -font font_diff
 187
 188         set w_columns [list $w_amov $w_asim $w_line $w_file]
 189
 190         scrollbar $w.file_pane.out.sbx \
 191                 -orient h \
 192                 -command [list $w_file xview]
 193         scrollbar $w.file_pane.out.sby \
 194                 -orient v \
 195                 -command [list scrollbar2many $w_columns yview]
 196         eval grid $w_columns $w.file_pane.out.sby -sticky nsew
 197         grid conf \
 198                 $w.file_pane.out.sbx \
 199                 -column [expr {[llength $w_columns] - 1}] \
 200                 -sticky we
 201         grid columnconfigure \
 202                 $w.file_pane.out \
 203                 [expr {[llength $w_columns] - 1}] \
 204                 -weight 1
 205         grid rowconfigure $w.file_pane.out 0 -weight 1
 206
 207         set w_cviewer $w.file_pane.cm.t
 208         text $w_cviewer \
 209                 -background white -borderwidth 0 \
 210                 -state disabled \
 211                 -wrap none \
 212                 -height 10 \
 213                 -width 80 \
 214                 -xscrollcommand [list $w.file_pane.cm.sbx set] \
 215                 -yscrollcommand [list $w.file_pane.cm.sby set] \
 216                 -font font_diff
 217         $w_cviewer tag conf still_loading \
 218                 -font font_uiitalic \
 219                 -justify center
 220         $w_cviewer tag conf header_key \
 221                 -tabs {3c} \
 222                 -background $active_color \
 223                 -font font_uibold
 224         $w_cviewer tag conf header_val \
 225                 -background $active_color \
 226                 -font font_ui
 227         $w_cviewer tag raise sel
 228         scrollbar $w.file_pane.cm.sbx \
 229                 -orient h \
 230                 -command [list $w_cviewer xview]
 231         scrollbar $w.file_pane.cm.sby \
 232                 -orient v \
 233                 -command [list $w_cviewer yview]
 234         pack $w.file_pane.cm.sby -side right -fill y
 235         pack $w.file_pane.cm.sbx -side bottom -fill x
 236         pack $w_cviewer -expand 1 -fill both
 237
 238         frame $w.status \
 239                 -borderwidth 1 \
 240                 -relief sunken
 241         label $w.status.l \
 242                 -textvariable @status \
 243                 -anchor w \
 244                 -justify left
 245         pack $w.status.l -side left
 246
 247         menu $w.ctxm -tearoff 0
 248         $w.ctxm add command \
 249                 -label "Copy Commit" \
 250                 -command [cb _copycommit]
 251
 252         foreach i $w_columns {
 253                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
 254                         $i tag conf color$g -background [lindex $group_colors $g]
 255                 }
 256
 257                 $i conf -cursor $cursor_ptr
 258                 $i conf -yscrollcommand [list many2scrollbar \
 259                         $w_columns yview $w.file_pane.out.sby]
 260                 bind $i <Button-1> "
 261                         [cb _hide_tooltip]
 262                         [cb _click $i @%x,%y]
 263                         focus $i
 264                 "
 265                 bind $i <Any-Motion>  [cb _show_tooltip $i @%x,%y]
 266                 bind $i <Any-Enter>   [cb _hide_tooltip]
 267                 bind $i <Any-Leave>   [cb _hide_tooltip]
 268                 bind_button3 $i "
 269                         [cb _hide_tooltip]
 270                         set cursorX %x
 271                         set cursorY %y
 272                         set cursorW %W
 273                         tk_popup $w.ctxm %X %Y
 274                 "
 275         }
 276
 277         foreach i [concat $w_columns $w_cviewer] {
 278                 bind $i <Key-Up>        {catch {%W yview scroll -1 units};break}
 279                 bind $i <Key-Down>      {catch {%W yview scroll  1 units};break}
 280                 bind $i <Key-Left>      {catch {%W xview scroll -1 units};break}
 281                 bind $i <Key-Right>     {catch {%W xview scroll  1 units};break}
 282                 bind $i <Key-k>         {catch {%W yview scroll -1 units};break}
 283                 bind $i <Key-j>         {catch {%W yview scroll  1 units};break}
 284                 bind $i <Key-h>         {catch {%W xview scroll -1 units};break}
 285                 bind $i <Key-l>         {catch {%W xview scroll  1 units};break}
 286                 bind $i <Control-Key-b> {catch {%W yview scroll -1 pages};break}
 287                 bind $i <Control-Key-f> {catch {%W yview scroll  1 pages};break}
 288         }
 289
 290         bind $w_cviewer <Button-1> [list focus $w_cviewer]
 291         bind $top <Visibility> [list focus $top]
 292         bind $w_file <Destroy> [list delete_this $this]
 293
 294         grid configure $w.header -sticky ew
 295         grid configure $w.file_pane -sticky nsew
 296         grid configure $w.status -sticky ew
 297         grid columnconfigure $top 0 -weight 1
 298         grid rowconfigure $top 0 -weight 0
 299         grid rowconfigure $top 1 -weight 1
 300         grid rowconfigure $top 2 -weight 0
 301
 302         set req_w [winfo reqwidth  $top]
 303         set req_h [winfo reqheight $top]
 304         if {$req_w < 600} {set req_w 600}
 305         if {$req_h < 400} {set req_h 400}
 306         set g "${req_w}x${req_h}"
 307         wm geometry $top $g
 308         update
 309
 310         set old_height [winfo height $w.file_pane]
 311         $w.file_pane sash place 0 \
 312                 [lindex [$w.file_pane sash coord 0] 0] \
 313                 [expr {int($old_height * 0.70)}]
 314         bind $w.file_pane <Configure> \
 315         "if {{$w.file_pane} eq {%W}} {[cb _resize %h]}"
 316
 317         _load $this {}
 318 }
 319
 320 method _load {jump} {
 321         variable group_colors
 322
 323         _hide_tooltip $this
 324
 325         if {$total_lines != 0 || $current_fd ne {}} {
 326                 if {$current_fd ne {}} {
 327                         catch {close $current_fd}
 328                         set current_fd {}
 329                 }
 330
 331                 foreach i $w_columns {
 332                         $i conf -state normal
 333                         $i delete 0.0 end
 334                         foreach g [$i tag names] {
 335                                 if {[regexp {^g[0-9a-f]{40}$} $g]} {
 336                                         $i tag delete $g
 337                                 }
 338                         }
 339                         $i conf -state disabled
 340                 }
 341
 342                 $w_cviewer conf -state normal
 343                 $w_cviewer delete 0.0 end
 344                 $w_cviewer conf -state disabled
 345
 346                 set highlight_line -1
 347                 set highlight_column {}
 348                 set highlight_commit {}
 349                 set total_lines 0
 350         }
 351
 352         if {[winfo exists $w.status.c]} {
 353                 $w.status.c coords bar 0 0 0 20
 354         } else {
 355                 canvas $w.status.c \
 356                         -width 100 \
 357                         -height [expr {int([winfo reqheight $w.status.l] * 0.6)}] \
 358                         -borderwidth 1 \
 359                         -relief groove \
 360                         -highlightt 0
 361                 $w.status.c create rectangle 0 0 0 20 -tags bar -fill navy
 362                 pack $w.status.c -side right
 363         }
 364
 365         if {$history eq {}} {
 366                 $w_back conf -state disabled
 367         } else {
 368                 $w_back conf -state normal
 369         }
 370
 371         # Index 0 is always empty.  There is never line 0 as
 372         # we use only 1 based lines, as that matches both with
 373         # git-blame output and with Tk's text widget.
 374         #
 375         set amov_data [list [list]]
 376         set asim_data [list [list]]
 377
 378         set status "Loading $commit:[escape_path $path]..."
 379         $w_path conf -text [escape_path $path]
 380         if {$commit eq {}} {
 381                 set fd [open $path r]
 382         } else {
 383                 set cmd [list git cat-file blob "$commit:$path"]
 384                 set fd [open "| $cmd" r]
 385         }
 386         fconfigure $fd -blocking 0 -translation lf -encoding binary
 387         fileevent $fd readable [cb _read_file $fd $jump]
 388         set current_fd $fd
 389 }
 390
 391 method _history_menu {} {
 392         set m $w.backmenu
 393         if {[winfo exists $m]} {
 394                 $m delete 0 end
 395         } else {
 396                 menu $m -tearoff 0
 397         }
 398
 399         for {set i [expr {[llength $history] - 1}]
 400                 } {$i >= 0} {incr i -1} {
 401                 set e [lindex $history $i]
 402                 set c [lindex $e 0]
 403                 set f [lindex $e 1]
 404
 405                 if {[regexp {^[0-9a-f]{40}$} $c]} {
 406                         set t [string range $c 0 8]...
 407                 } elseif {$c eq {}} {
 408                         set t {Working Directory}
 409                 } else {
 410                         set t $c
 411                 }
 412                 if {![catch {set summary $header($c,summary)}]} {
 413                         append t " $summary"
 414                         if {[string length $t] > 70} {
 415                                 set t [string range $t 0 66]...
 416                         }
 417                 }
 418
 419                 $m add command -label $t -command [cb _goback $i]
 420         }
 421         set X [winfo rootx $w_back]
 422         set Y [expr {[winfo rooty $w_back] + [winfo height $w_back]}]
 423         tk_popup $m $X $Y
 424 }
 425
 426 method _goback {i} {
 427         set dat [lindex $history $i]
 428         set history [lrange $history 0 [expr {$i - 1}]]
 429         set commit [lindex $dat 0]
 430         set path [lindex $dat 1]
 431         _load $this [lrange $dat 2 5]
 432 }
 433
 434 method _read_file {fd jump} {
 435         if {$fd ne $current_fd} {
 436                 catch {close $fd}
 437                 return
 438         }
 439
 440         foreach i $w_columns {$i conf -state normal}
 441         while {[gets $fd line] >= 0} {
 442                 regsub "\r\$" $line {} line
 443                 incr total_lines
 444                 lappend amov_data {}
 445                 lappend asim_data {}
 446
 447                 if {$total_lines > 1} {
 448                         foreach i $w_columns {$i insert end "\n"}
 449                 }
 450
 451                 $w_line insert end "$total_lines" linenumber
 452                 $w_file insert end "$line"
 453         }
 454
 455         set ln_wc [expr {[string length $total_lines] + 2}]
 456         if {[$w_line cget -width] < $ln_wc} {
 457                 $w_line conf -width $ln_wc
 458         }
 459
 460         foreach i $w_columns {$i conf -state disabled}
 461
 462         if {[eof $fd]} {
 463                 close $fd
 464
 465                 # If we don't force Tk to update the widgets *right now*
 466                 # none of our jump commands will cause a change in the UI.
 467                 #
 468                 update
 469
 470                 if {[llength $jump] == 1} {
 471                         set highlight_line [lindex $jump 0]
 472                         $w_file see "$highlight_line.0"
 473                 } elseif {[llength $jump] == 4} {
 474                         set highlight_column [lindex $jump 0]
 475                         set highlight_line [lindex $jump 1]
 476                         $w_file xview moveto [lindex $jump 2]
 477                         $w_file yview moveto [lindex $jump 3]
 478                 }
 479
 480                 _exec_blame $this $w_asim @asim_data \
 481                         [list] \
 482                         { copy/move tracking}
 483         }
 484 } ifdeleted { catch {close $fd} }
 485
 486 method _exec_blame {cur_w cur_d options cur_s} {
 487         set cmd [list nice git blame]
 488         set cmd [concat $cmd $options]
 489         lappend cmd --incremental
 490         if {$commit eq {}} {
 491                 lappend cmd --contents $path
 492         } else {
 493                 lappend cmd $commit
 494         }
 495         lappend cmd -- $path
 496         set fd [open "| $cmd" r]
 497         fconfigure $fd -blocking 0 -translation lf -encoding binary
 498         fileevent $fd readable [cb _read_blame $fd $cur_w $cur_d $cur_s]
 499         set current_fd $fd
 500         set blame_lines 0
 501         _status $this $cur_s
 502 }
 503
 504 method _read_blame {fd cur_w cur_d cur_s} {
 505         upvar #0 $cur_d line_data
 506         variable group_colors
 507
 508         if {$fd ne $current_fd} {
 509                 catch {close $fd}
 510                 return
 511         }
 512
 513         $cur_w conf -state normal
 514         while {[gets $fd line] >= 0} {
 515                 if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
 516                         cmit original_line final_line line_count]} {
 517                         set r_commit     $cmit
 518                         set r_orig_line  $original_line
 519                         set r_final_line $final_line
 520                         set r_line_count $line_count
 521                 } elseif {[string match {filename *} $line]} {
 522                         set file [string range $line 9 end]
 523                         set n    $r_line_count
 524                         set lno  $r_final_line
 525                         set oln  $r_orig_line
 526                         set cmit $r_commit
 527
 528                         if {[regexp {^0{40}$} $cmit]} {
 529                                 set commit_abbr work
 530                                 set commit_type curr_commit
 531                         } elseif {$cmit eq $commit} {
 532                                 set commit_abbr this
 533                                 set commit_type curr_commit
 534                         } else {
 535                                 set commit_type prior_commit
 536                                 set commit_abbr [string range $cmit 0 3]
 537                         }
 538
 539                         set author_abbr {}
 540                         set a_name {}
 541                         catch {set a_name $header($cmit,author)}
 542                         while {$a_name ne {}} {
 543                                 if {![regexp {^([[:upper:]])} $a_name _a]} break
 544                                 append author_abbr $_a
 545                                 unset _a
 546                                 if {![regsub \
 547                                         {^[[:upper:]][^\s]*\s+} \
 548                                         $a_name {} a_name ]} break
 549                         }
 550                         if {$author_abbr eq {}} {
 551                                 set author_abbr { |}
 552                         } else {
 553                                 set author_abbr [string range $author_abbr 0 3]
 554                         }
 555                         unset a_name
 556
 557                         set first_lno $lno
 558                         while {
 559                            $first_lno > 1
 560                         && $cmit eq [lindex $line_data [expr {$first_lno - 1}] 0]
 561                         && $file eq [lindex $line_data [expr {$first_lno - 1}] 1]
 562                         } {
 563                                 incr first_lno -1
 564                         }
 565
 566                         set color {}
 567                         if {$first_lno < $lno} {
 568                                 foreach g [$w_file tag names $first_lno.0] {
 569                                         if {[regexp {^color[0-9]+$} $g]} {
 570                                                 set color $g
 571                                                 break
 572                                         }
 573                                 }
 574                         } else {
 575                                 set i [lsort [concat \
 576                                         [$w_file tag names "[expr {$first_lno - 1}].0"] \
 577                                         [$w_file tag names "[expr {$lno + $n}].0"] \
 578                                         ]]
 579                                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
 580                                         if {[lsearch -sorted -exact $i color$g] == -1} {
 581                                                 set color color$g
 582                                                 break
 583                                         }
 584                                 }
 585                         }
 586                         if {$color eq {}} {
 587                                 set color color0
 588                         }
 589
 590                         while {$n > 0} {
 591                                 set lno_e "$lno.0 lineend + 1c"
 592                                 if {[lindex $line_data $lno] ne {}} {
 593                                         set g [lindex $line_data $lno 0]
 594                                         foreach i $w_columns {
 595                                                 $i tag remove g$g $lno.0 $lno_e
 596                                         }
 597                                 }
 598                                 lset line_data $lno [list $cmit $file $oln]
 599
 600                                 $cur_w delete $lno.0 "$lno.0 lineend"
 601                                 if {$lno == $first_lno} {
 602                                         $cur_w insert $lno.0 $commit_abbr $commit_type
 603                                 } elseif {$lno == [expr {$first_lno + 1}]} {
 604                                         $cur_w insert $lno.0 $author_abbr author_abbr
 605                                 } else {
 606                                         $cur_w insert $lno.0 { |}
 607                                 }
 608
 609                                 foreach i $w_columns {
 610                                         if {$cur_w eq $w_amov} {
 611                                                 for {set g 0} \
 612                                                         {$g < [llength $group_colors]} \
 613                                                         {incr g} {
 614                                                         $i tag remove color$g $lno.0 $lno_e
 615                                                 }
 616                                                 $i tag add $color $lno.0 $lno_e
 617                                         }
 618                                         $i tag add g$cmit $lno.0 $lno_e
 619                                 }
 620
 621                                 if {$highlight_column eq $cur_w} {
 622                                         if {$highlight_line == -1
 623                                          && [lindex [$w_file yview] 0] == 0} {
 624                                                 $w_file see $lno.0
 625                                                 set highlight_line $lno
 626                                         }
 627                                         if {$highlight_line == $lno} {
 628                                                 _showcommit $this $cur_w $lno
 629                                         }
 630                                 }
 631
 632                                 incr n -1
 633                                 incr lno
 634                                 incr oln
 635                                 incr blame_lines
 636                         }
 637
 638                         while {
 639                            $cmit eq [lindex $line_data $lno 0]
 640                         && $file eq [lindex $line_data $lno 1]
 641                         } {
 642                                 $cur_w delete $lno.0 "$lno.0 lineend"
 643
 644                                 if {$lno == $first_lno} {
 645                                         $cur_w insert $lno.0 $commit_abbr $commit_type
 646                                 } elseif {$lno == [expr {$first_lno + 1}]} {
 647                                         $cur_w insert $lno.0 $author_abbr author_abbr
 648                                 } else {
 649                                         $cur_w insert $lno.0 { |}
 650                                 }
 651
 652                                 if {$cur_w eq $w_amov} {
 653                                         foreach i $w_columns {
 654                                                 for {set g 0} \
 655                                                         {$g < [llength $group_colors]} \
 656                                                         {incr g} {
 657                                                         $i tag remove color$g $lno.0 $lno_e
 658                                                 }
 659                                                 $i tag add $color $lno.0 $lno_e
 660                                         }
 661                                 }
 662
 663                                 incr lno
 664                         }
 665
 666                 } elseif {[regexp {^([a-z-]+) (.*)$} $line line key data]} {
 667                         set header($r_commit,$key) $data
 668                 }
 669         }
 670         $cur_w conf -state disabled
 671
 672         if {[eof $fd]} {
 673                 close $fd
 674                 if {$cur_w eq $w_asim} {
 675                         _exec_blame $this $w_amov @amov_data \
 676                                 [list -M -C -C] \
 677                                 { original location}
 678                 } else {
 679                         set current_fd {}
 680                         set status {Annotation complete.}
 681                         destroy $w.status.c
 682                 }
 683         } else {
 684                 _status $this $cur_s
 685         }
 686 } ifdeleted { catch {close $fd} }
 687
 688 method _status {cur_s} {
 689         set have  $blame_lines
 690         set total $total_lines
 691         set pdone 0
 692         if {$total} {set pdone [expr {100 * $have / $total}]}
 693
 694         set status [format \
 695                 "Loading%s annotations... %i of %i lines annotated (%2i%%)" \
 696                 $cur_s $have $total $pdone]
 697         $w.status.c coords bar 0 0 $pdone 20
 698 }
 699
 700 method _click {cur_w pos} {
 701         set lno [lindex [split [$cur_w index $pos] .] 0]
 702         _showcommit $this $cur_w $lno
 703 }
 704
 705 method _load_commit {cur_w cur_d pos} {
 706         upvar #0 $cur_d line_data
 707         set lno [lindex [split [$cur_w index $pos] .] 0]
 708         set dat [lindex $line_data $lno]
 709         if {$dat ne {}} {
 710                 lappend history [list \
 711                         $commit $path \
 712                         $highlight_column \
 713                         $highlight_line \
 714                         [lindex [$w_file xview] 0] \
 715                         [lindex [$w_file yview] 0] \
 716                         ]
 717                 set commit [lindex $dat 0]
 718                 set path   [lindex $dat 1]
 719                 _load $this [list [lindex $dat 2]]
 720         }
 721 }
 722
 723 method _showcommit {cur_w lno} {
 724         global repo_config
 725         variable active_color
 726
 727         if {$highlight_commit ne {}} {
 728                 foreach i $w_columns {
 729                         $i tag conf g$highlight_commit -background {}
 730                         $i tag lower g$highlight_commit
 731                 }
 732         }
 733
 734         if {$cur_w eq $w_asim} {
 735                 set dat [lindex $asim_data $lno]
 736                 set highlight_column $w_asim
 737         } else {
 738                 set dat [lindex $amov_data $lno]
 739                 set highlight_column $w_amov
 740         }
 741
 742         $w_cviewer conf -state normal
 743         $w_cviewer delete 0.0 end
 744
 745         if {$dat eq {}} {
 746                 set cmit {}
 747                 $w_cviewer insert end "Loading annotation..." still_loading
 748         } else {
 749                 set cmit [lindex $dat 0]
 750                 set file [lindex $dat 1]
 751
 752                 foreach i $w_columns {
 753                         $i tag conf g$cmit -background $active_color
 754                         $i tag raise g$cmit
 755                 }
 756
 757                 set author_name {}
 758                 set author_email {}
 759                 set author_time {}
 760                 catch {set author_name $header($cmit,author)}
 761                 catch {set author_email $header($cmit,author-mail)}
 762                 catch {set author_time [clock format \
 763                         $header($cmit,author-time) \
 764                         -format {%Y-%m-%d %H:%M:%S}
 765                 ]}
 766
 767                 set committer_name {}
 768                 set committer_email {}
 769                 set committer_time {}
 770                 catch {set committer_name $header($cmit,committer)}
 771                 catch {set committer_email $header($cmit,committer-mail)}
 772                 catch {set committer_time [clock format \
 773                         $header($cmit,committer-time) \
 774                         -format {%Y-%m-%d %H:%M:%S}
 775                 ]}
 776
 777                 if {[catch {set msg $header($cmit,message)}]} {
 778                         set msg {}
 779                         catch {
 780                                 set fd [open "| git cat-file commit $cmit" r]
 781                                 fconfigure $fd -encoding binary -translation lf
 782                                 if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
 783                                         set enc utf-8
 784                                 }
 785                                 while {[gets $fd line] > 0} {
 786                                         if {[string match {encoding *} $line]} {
 787                                                 set enc [string tolower [string range $line 9 end]]
 788                                         }
 789                                 }
 790                                 set msg [encoding convertfrom $enc [read $fd]]
 791                                 set msg [string trim $msg]
 792                                 close $fd
 793
 794                                 set author_name [encoding convertfrom $enc $author_name]
 795                                 set committer_name [encoding convertfrom $enc $committer_name]
 796
 797                                 set header($cmit,author) $author_name
 798                                 set header($cmit,committer) $committer_name
 799                         }
 800                         set header($cmit,message) $msg
 801                 }
 802
 803                 $w_cviewer insert end "commit $cmit\n" header_key
 804                 $w_cviewer insert end "Author:\t" header_key
 805                 $w_cviewer insert end "$author_name $author_email" header_val
 806                 $w_cviewer insert end "  $author_time\n" header_val
 807
 808                 $w_cviewer insert end "Committer:\t" header_key
 809                 $w_cviewer insert end "$committer_name $committer_email" header_val
 810                 $w_cviewer insert end "  $committer_time\n" header_val
 811
 812                 if {$file ne $path} {
 813                         $w_cviewer insert end "Original File:\t" header_key
 814                         $w_cviewer insert end "[escape_path $file]\n" header_val
 815                 }
 816
 817                 $w_cviewer insert end "\n$msg"
 818         }
 819         $w_cviewer conf -state disabled
 820
 821         set highlight_line $lno
 822         set highlight_commit $cmit
 823
 824         if {[lsearch -exact $tooltip_commit $highlight_commit] != -1} {
 825                 _hide_tooltip $this
 826         }
 827 }
 828
 829 method _copycommit {} {
 830         set pos @$::cursorX,$::cursorY
 831         set lno [lindex [split [$::cursorW index $pos] .] 0]
 832         set dat [lindex $amov_data $lno]
 833         if {$dat ne {}} {
 834                 clipboard clear
 835                 clipboard append \
 836                         -format STRING \
 837                         -type STRING \
 838                         -- [lindex $dat 0]
 839         }
 840 }
 841
 842 method _show_tooltip {cur_w pos} {
 843         if {$tooltip_wm ne {}} {
 844                 _open_tooltip $this $cur_w
 845         } elseif {$tooltip_timer eq {}} {
 846                 set tooltip_timer [after 1000 [cb _open_tooltip $cur_w]]
 847         }
 848 }
 849
 850 method _open_tooltip {cur_w} {
 851         set tooltip_timer {}
 852         set pos_x [winfo pointerx $cur_w]
 853         set pos_y [winfo pointery $cur_w]
 854         if {[winfo containing $pos_x $pos_y] ne $cur_w} {
 855                 _hide_tooltip $this
 856                 return
 857         }
 858
 859         if {$tooltip_wm ne "$cur_w.tooltip"} {
 860                 _hide_tooltip $this
 861
 862                 set tooltip_wm [toplevel $cur_w.tooltip -borderwidth 1]
 863                 wm overrideredirect $tooltip_wm 1
 864                 wm transient $tooltip_wm [winfo toplevel $cur_w]
 865                 set tooltip_t $tooltip_wm.label
 866                 text $tooltip_t \
 867                         -takefocus 0 \
 868                         -highlightthickness 0 \
 869                         -relief flat \
 870                         -borderwidth 0 \
 871                         -wrap none \
 872                         -background lightyellow \
 873                         -foreground black
 874                 $tooltip_t tag conf section_header -font font_uibold
 875                 pack $tooltip_t
 876         } else {
 877                 $tooltip_t conf -state normal
 878                 $tooltip_t delete 0.0 end
 879         }
 880
 881         set pos @[join [list \
 882                 [expr {$pos_x - [winfo rootx $cur_w]}] \
 883                 [expr {$pos_y - [winfo rooty $cur_w]}]] ,]
 884         set lno [lindex [split [$cur_w index $pos] .] 0]
 885         if {$cur_w eq $w_amov} {
 886                 set dat [lindex $amov_data $lno]
 887                 set org {}
 888         } else {
 889                 set dat [lindex $asim_data $lno]
 890                 set org [lindex $amov_data $lno]
 891         }
 892
 893         set cmit [lindex $dat 0]
 894         set tooltip_commit [list $cmit]
 895
 896         set author_name {}
 897         set summary     {}
 898         set author_time {}
 899         catch {set author_name $header($cmit,author)}
 900         catch {set summary     $header($cmit,summary)}
 901         catch {set author_time [clock format \
 902                 $header($cmit,author-time) \
 903                 -format {%Y-%m-%d %H:%M:%S}
 904         ]}
 905
 906         $tooltip_t insert end "commit $cmit\n"
 907         $tooltip_t insert end "$author_name  $author_time\n"
 908         $tooltip_t insert end "$summary"
 909
 910         if {$org ne {} && [lindex $org 0] ne $cmit} {
 911                 set save [$tooltip_t get 0.0 end]
 912                 $tooltip_t delete 0.0 end
 913
 914                 set cmit [lindex $org 0]
 915                 set file [lindex $org 1]
 916                 lappend tooltip_commit $cmit
 917
 918                 set author_name {}
 919                 set summary     {}
 920                 set author_time {}
 921                 catch {set author_name $header($cmit,author)}
 922                 catch {set summary     $header($cmit,summary)}
 923                 catch {set author_time [clock format \
 924                         $header($cmit,author-time) \
 925                         -format {%Y-%m-%d %H:%M:%S}
 926                 ]}
 927
 928                 $tooltip_t insert end "Originally By:\n" section_header
 929                 $tooltip_t insert end "commit $cmit\n"
 930                 $tooltip_t insert end "$author_name  $author_time\n"
 931                 $tooltip_t insert end "$summary\n"
 932
 933                 if {$file ne $path} {
 934                         $tooltip_t insert end "In File: " section_header
 935                         $tooltip_t insert end "$file\n"
 936                 }
 937
 938                 $tooltip_t insert end "\n"
 939                 $tooltip_t insert end "Copied Or Moved Here By:\n" section_header
 940                 $tooltip_t insert end $save
 941         }
 942
 943         $tooltip_t conf -state disabled
 944         _position_tooltip $this
 945 }
 946
 947 method _position_tooltip {} {
 948         set max_h [lindex [split [$tooltip_t index end] .] 0]
 949         set max_w 0
 950         for {set i 1} {$i <= $max_h} {incr i} {
 951                 set c [lindex [split [$tooltip_t index "$i.0 lineend"] .] 1]
 952                 if {$c > $max_w} {set max_w $c}
 953         }
 954         $tooltip_t conf -width $max_w -height $max_h
 955
 956         set req_w [winfo reqwidth  $tooltip_t]
 957         set req_h [winfo reqheight $tooltip_t]
 958         set pos_x [expr {[winfo pointerx .] +  5}]
 959         set pos_y [expr {[winfo pointery .] + 10}]
 960
 961         set g "${req_w}x${req_h}"
 962         if {$pos_x >= 0} {append g +}
 963         append g $pos_x
 964         if {$pos_y >= 0} {append g +}
 965         append g $pos_y
 966
 967         wm geometry $tooltip_wm $g
 968         raise $tooltip_wm
 969 }
 970
 971 method _hide_tooltip {} {
 972         if {$tooltip_wm ne {}} {
 973                 destroy $tooltip_wm
 974                 set tooltip_wm {}
 975                 set tooltip_commit {}
 976         }
 977         if {$tooltip_timer ne {}} {
 978                 after cancel $tooltip_timer
 979                 set tooltip_timer {}
 980         }
 981 }
 982
 983 method _resize {new_height} {
 984         set diff [expr {$new_height - $old_height}]
 985         if {$diff == 0} return
 986
 987         set my [expr {[winfo height $w.file_pane] - 25}]
 988         set o [$w.file_pane sash coord 0]
 989         set ox [lindex $o 0]
 990         set oy [expr {[lindex $o 1] + $diff}]
 991         if {$oy < 0}   {set oy 0}
 992         if {$oy > $my} {set oy $my}
 993         $w.file_pane sash place 0 $ox $oy
 994
 995         set old_height $new_height
 996 }
 997
 998 }