lib / blame.tclon commit git-gui: Support passing blame to a parent commit. (80fd76b)
   1# git-gui blame viewer
   2# Copyright (C) 2006, 2007 Shawn Pearce
   3
   4class blame {
   5
   6image create photo ::blame::img_back_arrow -data {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}
   7
   8# Persistant data (survives loads)
   9#
  10field history {}; # viewer history: {commit path}
  11field header    ; # array commit,key -> header field
  12
  13# Tk UI control paths
  14#
  15field w          ; # top window in this viewer
  16field w_back     ; # our back button
  17field w_path     ; # label showing the current file path
  18field w_columns  ; # list of all column widgets in the viewer
  19field w_line     ; # text column: all line numbers
  20field w_amov     ; # text column: annotations + move tracking
  21field w_asim     ; # text column: annotations (simple computation)
  22field w_file     ; # text column: actual file data
  23field w_cviewer  ; # pane showing commit message
  24field status     ; # status mega-widget instance
  25field old_height ; # last known height of $w.file_pane
  26
  27# Tk UI colors
  28#
  29variable active_color #c0edc5
  30variable group_colors {
  31        #d6d6d6
  32        #e1e1e1
  33        #ececec
  34}
  35
  36# Current blame data; cleared/reset on each load
  37#
  38field commit               ; # input commit to blame
  39field path                 ; # input filename to view in $commit
  40
  41field current_fd        {} ; # background process running
  42field highlight_line    -1 ; # current line selected
  43field highlight_column  {} ; # current commit column selected
  44field highlight_commit  {} ; # sha1 of commit selected
  45
  46field total_lines       0  ; # total length of file
  47field blame_lines       0  ; # number of lines computed
  48field amov_data            ; # list of {commit origfile origline}
  49field asim_data            ; # list of {commit origfile origline}
  50
  51field r_commit             ; # commit currently being parsed
  52field r_orig_line          ; # original line number
  53field r_final_line         ; # final line number
  54field r_line_count         ; # lines in this region
  55
  56field tooltip_wm        {} ; # Current tooltip toplevel, if open
  57field tooltip_t         {} ; # Text widget in $tooltip_wm
  58field tooltip_timer     {} ; # Current timer event for our tooltip
  59field tooltip_commit    {} ; # Commit(s) in tooltip
  60
  61constructor 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 $this {}
 342}
 343
 344method _kill {} {
 345        if {$current_fd ne {}} {
 346                kill_file_process $current_fd
 347                catch {close $current_fd}
 348                set current_fd {}
 349        }
 350}
 351
 352method _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
 407method _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
 442method _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 $dat 2 5]
 448}
 449
 450method _read_file {fd jump} {
 451        if {$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 $fd} }
 501
 502method _exec_blame {cur_w cur_d options cur_s} {
 503        lappend options --incremental
 504        if {$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
 521method _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
 720method _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 $pos
 736}
 737
 738method _fullcopyblame {} {
 739        if {$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                $original_options \
 783                [mc "Running thorough copy detection..."]
 784}
 785
 786method _click {cur_w pos} {
 787        set lno [lindex [split [$cur_w index $pos] .] 0]
 788        _showcommit $this $cur_w $lno
 789}
 790
 791method _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
 803method _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 $jump
 815}
 816
 817method _showcommit {cur_w lno} {
 818        global repo_config
 819        variable active_color
 820
 821        if {$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 $this
 919        }
 920}
 921
 922method _get_click_amov_info {} {
 923        set pos @$::cursorX,$::cursorY
 924        set lno [lindex [split [$::cursorW index $pos] .] 0]
 925        return [lindex $amov_data $lno]
 926}
 927
 928method _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 $dat 0]
 936        }
 937}
 938
 939method _format_offset_date {base offset} {
 940        set exval [expr {$base + $offset*24*60*60}]
 941        return [clock format $exval -format {%Y-%m-%d}]
 942}
 943
 944method _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
 983method _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 $dat 2]]
 997        }
 998}
 999
1000method _show_tooltip {cur_w pos} {
1001        if {$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
1008method _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 $this
1102}
1103
1104method _position_tooltip {} {
1105        set max_h [lindex [split [$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 $tooltip_wm
1126}
1127
1128method _hide_tooltip {} {
1129        if {$tooltip_wm ne {}} {
1130                destroy $tooltip_wm
1131                set tooltip_wm {}
1132                set tooltip_commit {}
1133        }
1134        if {$tooltip_timer ne {}} {
1135                after cancel $tooltip_timer
1136                set tooltip_timer {}
1137        }
1138}
1139
1140method _resize {new_height} {
1141        set diff [expr {$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}