git-gui / lib / blame.tclon commit Merge branch 'lh/submodule' (30ba380)
   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     ; # text variable bound to status bar
  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 "[appname] ([reponame]): File Viewer"
  71
  72        frame $w.header -background gold
  73        label $w.header.commit_l \
  74                -text {Commit:} \
  75                -background gold \
  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 gold \
  85                -activebackground gold
  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 gold \
  94                -anchor w \
  95                -justify left
  96        label $w.header.path_l \
  97                -text {File:} \
  98                -background gold \
  99                -anchor w \
 100                -justify left
 101        set w_path $w.header.path
 102        label $w_path \
 103                -background gold \
 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
 293        grid configure $w.header -sticky ew
 294        grid configure $w.file_pane -sticky nsew
 295        grid configure $w.status -sticky ew
 296        grid columnconfigure $top 0 -weight 1
 297        grid rowconfigure $top 0 -weight 0
 298        grid rowconfigure $top 1 -weight 1
 299        grid rowconfigure $top 2 -weight 0
 300
 301        set req_w [winfo reqwidth  $top]
 302        set req_h [winfo reqheight $top]
 303        if {$req_w < 600} {set req_w 600}
 304        if {$req_h < 400} {set req_h 400}
 305        set g "${req_w}x${req_h}"
 306        wm geometry $top $g
 307        update
 308
 309        set old_height [winfo height $w.file_pane]
 310        $w.file_pane sash place 0 \
 311                [lindex [$w.file_pane sash coord 0] 0] \
 312                [expr {int($old_height * 0.70)}]
 313        bind $w.file_pane <Configure> \
 314        "if {{$w.file_pane} eq {%W}} {[cb _resize %h]}"
 315
 316        _load $this {}
 317}
 318
 319method _load {jump} {
 320        variable group_colors
 321
 322        _hide_tooltip $this
 323
 324        if {$total_lines != 0 || $current_fd ne {}} {
 325                if {$current_fd ne {}} {
 326                        catch {close $current_fd}
 327                        set current_fd {}
 328                }
 329
 330                foreach i $w_columns {
 331                        $i conf -state normal
 332                        $i delete 0.0 end
 333                        foreach g [$i tag names] {
 334                                if {[regexp {^g[0-9a-f]{40}$} $g]} {
 335                                        $i tag delete $g
 336                                }
 337                        }
 338                        $i conf -state disabled
 339                }
 340
 341                $w_cviewer conf -state normal
 342                $w_cviewer delete 0.0 end
 343                $w_cviewer conf -state disabled
 344
 345                set highlight_line -1
 346                set highlight_column {}
 347                set highlight_commit {}
 348                set total_lines 0
 349        }
 350
 351        if {[winfo exists $w.status.c]} {
 352                $w.status.c coords bar 0 0 0 20
 353        } else {
 354                canvas $w.status.c \
 355                        -width 100 \
 356                        -height [expr {int([winfo reqheight $w.status.l] * 0.6)}] \
 357                        -borderwidth 1 \
 358                        -relief groove \
 359                        -highlightt 0
 360                $w.status.c create rectangle 0 0 0 20 -tags bar -fill navy
 361                pack $w.status.c -side right
 362        }
 363
 364        if {$history eq {}} {
 365                $w_back conf -state disabled
 366        } else {
 367                $w_back conf -state normal
 368        }
 369
 370        # Index 0 is always empty.  There is never line 0 as
 371        # we use only 1 based lines, as that matches both with
 372        # git-blame output and with Tk's text widget.
 373        #
 374        set amov_data [list [list]]
 375        set asim_data [list [list]]
 376
 377        set status "Loading $commit:[escape_path $path]..."
 378        $w_path conf -text [escape_path $path]
 379        if {$commit eq {}} {
 380                set fd [open $path r]
 381        } else {
 382                set cmd [list git cat-file blob "$commit:$path"]
 383                set fd [open "| $cmd" r]
 384        }
 385        fconfigure $fd -blocking 0 -translation lf -encoding binary
 386        fileevent $fd readable [cb _read_file $fd $jump]
 387        set current_fd $fd
 388}
 389
 390method _history_menu {} {
 391        set m $w.backmenu
 392        if {[winfo exists $m]} {
 393                $m delete 0 end
 394        } else {
 395                menu $m -tearoff 0
 396        }
 397
 398        for {set i [expr {[llength $history] - 1}]
 399                } {$i >= 0} {incr i -1} {
 400                set e [lindex $history $i]
 401                set c [lindex $e 0]
 402                set f [lindex $e 1]
 403
 404                if {[regexp {^[0-9a-f]{40}$} $c]} {
 405                        set t [string range $c 0 8]...
 406                } elseif {$c eq {}} {
 407                        set t {Working Directory}
 408                } else {
 409                        set t $c
 410                }
 411                if {![catch {set summary $header($c,summary)}]} {
 412                        append t " $summary"
 413                        if {[string length $t] > 70} {
 414                                set t [string range $t 0 66]...
 415                        }
 416                }
 417
 418                $m add command -label $t -command [cb _goback $i]
 419        }
 420        set X [winfo rootx $w_back]
 421        set Y [expr {[winfo rooty $w_back] + [winfo height $w_back]}]
 422        tk_popup $m $X $Y
 423}
 424
 425method _goback {i} {
 426        set dat [lindex $history $i]
 427        set history [lrange $history 0 [expr {$i - 1}]]
 428        set commit [lindex $dat 0]
 429        set path [lindex $dat 1]
 430        _load $this [lrange $dat 2 5]
 431}
 432
 433method _read_file {fd jump} {
 434        if {$fd ne $current_fd} {
 435                catch {close $fd}
 436                return
 437        }
 438
 439        foreach i $w_columns {$i conf -state normal}
 440        while {[gets $fd line] >= 0} {
 441                regsub "\r\$" $line {} line
 442                incr total_lines
 443                lappend amov_data {}
 444                lappend asim_data {}
 445
 446                if {$total_lines > 1} {
 447                        foreach i $w_columns {$i insert end "\n"}
 448                }
 449
 450                $w_line insert end "$total_lines" linenumber
 451                $w_file insert end "$line"
 452        }
 453
 454        set ln_wc [expr {[string length $total_lines] + 2}]
 455        if {[$w_line cget -width] < $ln_wc} {
 456                $w_line conf -width $ln_wc
 457        }
 458
 459        foreach i $w_columns {$i conf -state disabled}
 460
 461        if {[eof $fd]} {
 462                close $fd
 463
 464                # If we don't force Tk to update the widgets *right now*
 465                # none of our jump commands will cause a change in the UI.
 466                #
 467                update
 468
 469                if {[llength $jump] == 1} {
 470                        set highlight_line [lindex $jump 0]
 471                        $w_file see "$highlight_line.0"
 472                } elseif {[llength $jump] == 4} {
 473                        set highlight_column [lindex $jump 0]
 474                        set highlight_line [lindex $jump 1]
 475                        $w_file xview moveto [lindex $jump 2]
 476                        $w_file yview moveto [lindex $jump 3]
 477                }
 478
 479                _exec_blame $this $w_asim @asim_data \
 480                        [list] \
 481                        { copy/move tracking}
 482        }
 483} ifdeleted { catch {close $fd} }
 484
 485method _exec_blame {cur_w cur_d options cur_s} {
 486        set cmd [list nice git blame]
 487        set cmd [concat $cmd $options]
 488        lappend cmd --incremental
 489        if {$commit eq {}} {
 490                lappend cmd --contents $path
 491        } else {
 492                lappend cmd $commit
 493        }
 494        lappend cmd -- $path
 495        set fd [open "| $cmd" r]
 496        fconfigure $fd -blocking 0 -translation lf -encoding binary
 497        fileevent $fd readable [cb _read_blame $fd $cur_w $cur_d $cur_s]
 498        set current_fd $fd
 499        set blame_lines 0
 500        _status $this $cur_s
 501}
 502
 503method _read_blame {fd cur_w cur_d cur_s} {
 504        upvar #0 $cur_d line_data
 505        variable group_colors
 506
 507        if {$fd ne $current_fd} {
 508                catch {close $fd}
 509                return
 510        }
 511
 512        $cur_w conf -state normal
 513        while {[gets $fd line] >= 0} {
 514                if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
 515                        cmit original_line final_line line_count]} {
 516                        set r_commit     $cmit
 517                        set r_orig_line  $original_line
 518                        set r_final_line $final_line
 519                        set r_line_count $line_count
 520                } elseif {[string match {filename *} $line]} {
 521                        set file [string range $line 9 end]
 522                        set n    $r_line_count
 523                        set lno  $r_final_line
 524                        set oln  $r_orig_line
 525                        set cmit $r_commit
 526
 527                        if {[regexp {^0{40}$} $cmit]} {
 528                                set commit_abbr work
 529                                set commit_type curr_commit
 530                        } elseif {$cmit eq $commit} {
 531                                set commit_abbr this
 532                                set commit_type curr_commit
 533                        } else {
 534                                set commit_type prior_commit
 535                                set commit_abbr [string range $cmit 0 3]
 536                        }
 537
 538                        set author_abbr {}
 539                        set a_name {}
 540                        catch {set a_name $header($cmit,author)}
 541                        while {$a_name ne {}} {
 542                                if {![regexp {^([[:upper:]])} $a_name _a]} break
 543                                append author_abbr $_a
 544                                unset _a
 545                                if {![regsub \
 546                                        {^[[:upper:]][^\s]*\s+} \
 547                                        $a_name {} a_name ]} break
 548                        }
 549                        if {$author_abbr eq {}} {
 550                                set author_abbr { |}
 551                        } else {
 552                                set author_abbr [string range $author_abbr 0 3]
 553                        }
 554                        unset a_name
 555
 556                        set first_lno $lno
 557                        while {
 558                           $first_lno > 1
 559                        && $cmit eq [lindex $line_data [expr {$first_lno - 1}] 0]
 560                        && $file eq [lindex $line_data [expr {$first_lno - 1}] 1]
 561                        } {
 562                                incr first_lno -1
 563                        }
 564
 565                        set color {}
 566                        if {$first_lno < $lno} {
 567                                foreach g [$w_file tag names $first_lno.0] {
 568                                        if {[regexp {^color[0-9]+$} $g]} {
 569                                                set color $g
 570                                                break
 571                                        }
 572                                }
 573                        } else {
 574                                set i [lsort [concat \
 575                                        [$w_file tag names "[expr {$first_lno - 1}].0"] \
 576                                        [$w_file tag names "[expr {$lno + $n}].0"] \
 577                                        ]]
 578                                for {set g 0} {$g < [llength $group_colors]} {incr g} {
 579                                        if {[lsearch -sorted -exact $i color$g] == -1} {
 580                                                set color color$g
 581                                                break
 582                                        }
 583                                }
 584                        }
 585                        if {$color eq {}} {
 586                                set color color0
 587                        }
 588
 589                        while {$n > 0} {
 590                                set lno_e "$lno.0 lineend + 1c"
 591                                if {[lindex $line_data $lno] ne {}} {
 592                                        set g [lindex $line_data $lno 0]
 593                                        foreach i $w_columns {
 594                                                $i tag remove g$g $lno.0 $lno_e
 595                                        }
 596                                }
 597                                lset line_data $lno [list $cmit $file $oln]
 598
 599                                $cur_w delete $lno.0 "$lno.0 lineend"
 600                                if {$lno == $first_lno} {
 601                                        $cur_w insert $lno.0 $commit_abbr $commit_type
 602                                } elseif {$lno == [expr {$first_lno + 1}]} {
 603                                        $cur_w insert $lno.0 $author_abbr author_abbr
 604                                } else {
 605                                        $cur_w insert $lno.0 { |}
 606                                }
 607
 608                                foreach i $w_columns {
 609                                        if {$cur_w eq $w_amov} {
 610                                                for {set g 0} \
 611                                                        {$g < [llength $group_colors]} \
 612                                                        {incr g} {
 613                                                        $i tag remove color$g $lno.0 $lno_e
 614                                                }
 615                                                $i tag add $color $lno.0 $lno_e
 616                                        }
 617                                        $i tag add g$cmit $lno.0 $lno_e
 618                                }
 619
 620                                if {$highlight_column eq $cur_w} {
 621                                        if {$highlight_line == -1
 622                                         && [lindex [$w_file yview] 0] == 0} {
 623                                                $w_file see $lno.0
 624                                                set highlight_line $lno
 625                                        }
 626                                        if {$highlight_line == $lno} {
 627                                                _showcommit $this $cur_w $lno
 628                                        }
 629                                }
 630
 631                                incr n -1
 632                                incr lno
 633                                incr oln
 634                                incr blame_lines
 635                        }
 636
 637                        while {
 638                           $cmit eq [lindex $line_data $lno 0]
 639                        && $file eq [lindex $line_data $lno 1]
 640                        } {
 641                                $cur_w delete $lno.0 "$lno.0 lineend"
 642
 643                                if {$lno == $first_lno} {
 644                                        $cur_w insert $lno.0 $commit_abbr $commit_type
 645                                } elseif {$lno == [expr {$first_lno + 1}]} {
 646                                        $cur_w insert $lno.0 $author_abbr author_abbr
 647                                } else {
 648                                        $cur_w insert $lno.0 { |}
 649                                }
 650
 651                                if {$cur_w eq $w_amov} {
 652                                        foreach i $w_columns {
 653                                                for {set g 0} \
 654                                                        {$g < [llength $group_colors]} \
 655                                                        {incr g} {
 656                                                        $i tag remove color$g $lno.0 $lno_e
 657                                                }
 658                                                $i tag add $color $lno.0 $lno_e
 659                                        }
 660                                }
 661
 662                                incr lno
 663                        }
 664
 665                } elseif {[regexp {^([a-z-]+) (.*)$} $line line key data]} {
 666                        set header($r_commit,$key) $data
 667                }
 668        }
 669        $cur_w conf -state disabled
 670
 671        if {[eof $fd]} {
 672                close $fd
 673                if {$cur_w eq $w_asim} {
 674                        _exec_blame $this $w_amov @amov_data \
 675                                [list -M -C -C] \
 676                                { original location}
 677                } else {
 678                        set current_fd {}
 679                        set status {Annotation complete.}
 680                        destroy $w.status.c
 681                }
 682        } else {
 683                _status $this $cur_s
 684        }
 685} ifdeleted { catch {close $fd} }
 686
 687method _status {cur_s} {
 688        set have  $blame_lines
 689        set total $total_lines
 690        set pdone 0
 691        if {$total} {set pdone [expr {100 * $have / $total}]}
 692
 693        set status [format \
 694                "Loading%s annotations... %i of %i lines annotated (%2i%%)" \
 695                $cur_s $have $total $pdone]
 696        $w.status.c coords bar 0 0 $pdone 20
 697}
 698
 699method _click {cur_w pos} {
 700        set lno [lindex [split [$cur_w index $pos] .] 0]
 701        _showcommit $this $cur_w $lno
 702}
 703
 704method _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 $dat 2]]
 719        }
 720}
 721
 722method _showcommit {cur_w lno} {
 723        global repo_config
 724        variable active_color
 725
 726        if {$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 "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 [clock format \
 762                        $header($cmit,author-time) \
 763                        -format {%Y-%m-%d %H:%M:%S}
 764                ]}
 765
 766                set committer_name {}
 767                set committer_email {}
 768                set committer_time {}
 769                catch {set committer_name $header($cmit,committer)}
 770                catch {set committer_email $header($cmit,committer-mail)}
 771                catch {set committer_time [clock format \
 772                        $header($cmit,committer-time) \
 773                        -format {%Y-%m-%d %H:%M:%S}
 774                ]}
 775
 776                if {[catch {set msg $header($cmit,message)}]} {
 777                        set msg {}
 778                        catch {
 779                                set fd [open "| git cat-file commit $cmit" r]
 780                                fconfigure $fd -encoding binary -translation lf
 781                                if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
 782                                        set enc utf-8
 783                                }
 784                                while {[gets $fd line] > 0} {
 785                                        if {[string match {encoding *} $line]} {
 786                                                set enc [string tolower [string range $line 9 end]]
 787                                        }
 788                                }
 789                                set msg [encoding convertfrom $enc [read $fd]]
 790                                set msg [string trim $msg]
 791                                close $fd
 792
 793                                set author_name [encoding convertfrom $enc $author_name]
 794                                set committer_name [encoding convertfrom $enc $committer_name]
 795
 796                                set header($cmit,author) $author_name
 797                                set header($cmit,committer) $committer_name
 798                        }
 799                        set header($cmit,message) $msg
 800                }
 801
 802                $w_cviewer insert end "commit $cmit\n" header_key
 803                $w_cviewer insert end "Author:\t" header_key
 804                $w_cviewer insert end "$author_name $author_email" header_val
 805                $w_cviewer insert end "  $author_time\n" header_val
 806
 807                $w_cviewer insert end "Committer:\t" header_key
 808                $w_cviewer insert end "$committer_name $committer_email" header_val
 809                $w_cviewer insert end "  $committer_time\n" header_val
 810
 811                if {$file ne $path} {
 812                        $w_cviewer insert end "Original File:\t" header_key
 813                        $w_cviewer insert end "[escape_path $file]\n" header_val
 814                }
 815
 816                $w_cviewer insert end "\n$msg"
 817        }
 818        $w_cviewer conf -state disabled
 819
 820        set highlight_line $lno
 821        set highlight_commit $cmit
 822
 823        if {[lsearch -exact $tooltip_commit $highlight_commit] != -1} {
 824                _hide_tooltip $this
 825        }
 826}
 827
 828method _copycommit {} {
 829        set pos @$::cursorX,$::cursorY
 830        set lno [lindex [split [$::cursorW index $pos] .] 0]
 831        set dat [lindex $amov_data $lno]
 832        if {$dat ne {}} {
 833                clipboard clear
 834                clipboard append \
 835                        -format STRING \
 836                        -type STRING \
 837                        -- [lindex $dat 0]
 838        }
 839}
 840
 841method _show_tooltip {cur_w pos} {
 842        if {$tooltip_wm ne {}} {
 843                _open_tooltip $this $cur_w
 844        } elseif {$tooltip_timer eq {}} {
 845                set tooltip_timer [after 1000 [cb _open_tooltip $cur_w]]
 846        }
 847}
 848
 849method _open_tooltip {cur_w} {
 850        set tooltip_timer {}
 851        set pos_x [winfo pointerx $cur_w]
 852        set pos_y [winfo pointery $cur_w]
 853        if {[winfo containing $pos_x $pos_y] ne $cur_w} {
 854                _hide_tooltip $this
 855                return
 856        }
 857
 858        if {$tooltip_wm ne "$cur_w.tooltip"} {
 859                _hide_tooltip $this
 860
 861                set tooltip_wm [toplevel $cur_w.tooltip -borderwidth 1]
 862                wm overrideredirect $tooltip_wm 1
 863                wm transient $tooltip_wm [winfo toplevel $cur_w]
 864                set tooltip_t $tooltip_wm.label
 865                text $tooltip_t \
 866                        -takefocus 0 \
 867                        -highlightthickness 0 \
 868                        -relief flat \
 869                        -borderwidth 0 \
 870                        -wrap none \
 871                        -background lightyellow \
 872                        -foreground black
 873                $tooltip_t tag conf section_header -font font_uibold
 874                pack $tooltip_t
 875        } else {
 876                $tooltip_t conf -state normal
 877                $tooltip_t delete 0.0 end
 878        }
 879
 880        set pos @[join [list \
 881                [expr {$pos_x - [winfo rootx $cur_w]}] \
 882                [expr {$pos_y - [winfo rooty $cur_w]}]] ,]
 883        set lno [lindex [split [$cur_w index $pos] .] 0]
 884        if {$cur_w eq $w_amov} {
 885                set dat [lindex $amov_data $lno]
 886                set org {}
 887        } else {
 888                set dat [lindex $asim_data $lno]
 889                set org [lindex $amov_data $lno]
 890        }
 891
 892        set cmit [lindex $dat 0]
 893        set tooltip_commit [list $cmit]
 894
 895        set author_name {}
 896        set summary     {}
 897        set author_time {}
 898        catch {set author_name $header($cmit,author)}
 899        catch {set summary     $header($cmit,summary)}
 900        catch {set author_time [clock format \
 901                $header($cmit,author-time) \
 902                -format {%Y-%m-%d %H:%M:%S}
 903        ]}
 904
 905        $tooltip_t insert end "commit $cmit\n"
 906        $tooltip_t insert end "$author_name  $author_time\n"
 907        $tooltip_t insert end "$summary"
 908
 909        if {$org ne {} && [lindex $org 0] ne $cmit} {
 910                set save [$tooltip_t get 0.0 end]
 911                $tooltip_t delete 0.0 end
 912
 913                set cmit [lindex $org 0]
 914                set file [lindex $org 1]
 915                lappend tooltip_commit $cmit
 916
 917                set author_name {}
 918                set summary     {}
 919                set author_time {}
 920                catch {set author_name $header($cmit,author)}
 921                catch {set summary     $header($cmit,summary)}
 922                catch {set author_time [clock format \
 923                        $header($cmit,author-time) \
 924                        -format {%Y-%m-%d %H:%M:%S}
 925                ]}
 926
 927                $tooltip_t insert end "Originally By:\n" section_header
 928                $tooltip_t insert end "commit $cmit\n"
 929                $tooltip_t insert end "$author_name  $author_time\n"
 930                $tooltip_t insert end "$summary\n"
 931
 932                if {$file ne $path} {
 933                        $tooltip_t insert end "In File: " section_header
 934                        $tooltip_t insert end "$file\n"
 935                }
 936
 937                $tooltip_t insert end "\n"
 938                $tooltip_t insert end "Copied Or Moved Here By:\n" section_header
 939                $tooltip_t insert end $save
 940        }
 941
 942        $tooltip_t conf -state disabled
 943        _position_tooltip $this
 944}
 945
 946method _position_tooltip {} {
 947        set max_h [lindex [split [$tooltip_t index end] .] 0]
 948        set max_w 0
 949        for {set i 1} {$i <= $max_h} {incr i} {
 950                set c [lindex [split [$tooltip_t index "$i.0 lineend"] .] 1]
 951                if {$c > $max_w} {set max_w $c}
 952        }
 953        $tooltip_t conf -width $max_w -height $max_h
 954
 955        set req_w [winfo reqwidth  $tooltip_t]
 956        set req_h [winfo reqheight $tooltip_t]
 957        set pos_x [expr {[winfo pointerx .] +  5}]
 958        set pos_y [expr {[winfo pointery .] + 10}]
 959
 960        set g "${req_w}x${req_h}"
 961        if {$pos_x >= 0} {append g +}
 962        append g $pos_x
 963        if {$pos_y >= 0} {append g +}
 964        append g $pos_y
 965
 966        wm geometry $tooltip_wm $g
 967        raise $tooltip_wm
 968}
 969
 970method _hide_tooltip {} {
 971        if {$tooltip_wm ne {}} {
 972                destroy $tooltip_wm
 973                set tooltip_wm {}
 974                set tooltip_commit {}
 975        }
 976        if {$tooltip_timer ne {}} {
 977                after cancel $tooltip_timer
 978                set tooltip_timer {}
 979        }
 980}
 981
 982method _resize {new_height} {
 983        set diff [expr {$new_height - $old_height}]
 984        if {$diff == 0} return
 985
 986        set my [expr {[winfo height $w.file_pane] - 25}]
 987        set o [$w.file_pane sash coord 0]
 988        set ox [lindex $o 0]
 989        set oy [expr {[lindex $o 1] + $diff}]
 990        if {$oy < 0}   {set oy 0}
 991        if {$oy > $my} {set oy $my}
 992        $w.file_pane sash place 0 $ox $oy
 993
 994        set old_height $new_height
 995}
 996
 997}