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