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