Merge branch 'ei/worktree+filter'
[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     ; # text variable bound to status bar
25 field old_height ; # last known height of $w.file_pane
26
27 # Tk UI colors
28 #
29 variable active_color #c0edc5
30 variable group_colors {
31         #d6d6d6
32         #e1e1e1
33         #ececec
34 }
35
36 # Current blame data; cleared/reset on each load
37 #
38 field commit               ; # input commit to blame
39 field path                 ; # input filename to view in $commit
40
41 field current_fd        {} ; # background process running
42 field highlight_line    -1 ; # current line selected
43 field highlight_column  {} ; # current commit column selected
44 field highlight_commit  {} ; # sha1 of commit selected
45
46 field total_lines       0  ; # total length of file
47 field blame_lines       0  ; # number of lines computed
48 field amov_data            ; # list of {commit origfile origline}
49 field asim_data            ; # list of {commit origfile origline}
50
51 field r_commit             ; # commit currently being parsed
52 field r_orig_line          ; # original line number
53 field r_final_line         ; # final line number
54 field r_line_count         ; # lines in this region
55
56 field tooltip_wm        {} ; # Current tooltip toplevel, if open
57 field tooltip_t         {} ; # Text widget in $tooltip_wm
58 field tooltip_timer     {} ; # Current timer event for our tooltip
59 field tooltip_commit    {} ; # Commit(s) in tooltip
60
61 constructor new {i_commit i_path} {
62         global cursor_ptr
63         variable active_color
64         variable group_colors
65
66         set commit $i_commit
67         set path   $i_path
68
69         make_toplevel top w
70         wm title $top "[appname] ([reponame]): File Viewer"
71
72         frame $w.header -background 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                 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 $top]
307         if {$req_w < 600} {set req_w 600}
308         if {$req_h < 400} {set req_h 400}
309         set g "${req_w}x${req_h}"
310         wm geometry $top $g
311         update
312
313         set old_height [winfo height $w.file_pane]
314         $w.file_pane sash place 0 \
315                 [lindex [$w.file_pane sash coord 0] 0] \
316                 [expr {int($old_height * 0.70)}]
317         bind $w.file_pane <Configure> \
318         "if {{$w.file_pane} eq {%W}} {[cb _resize %h]}"
319
320         _load $this {}
321 }
322
323 method _load {jump} {
324         variable group_colors
325
326         _hide_tooltip $this
327
328         if {$total_lines != 0 || $current_fd ne {}} {
329                 if {$current_fd ne {}} {
330                         catch {close $current_fd}
331                         set current_fd {}
332                 }
333
334                 foreach i $w_columns {
335                         $i conf -state normal
336                         $i delete 0.0 end
337                         foreach g [$i tag names] {
338                                 if {[regexp {^g[0-9a-f]{40}$} $g]} {
339                                         $i tag delete $g
340                                 }
341                         }
342                         $i conf -state disabled
343                 }
344
345                 $w_cviewer conf -state normal
346                 $w_cviewer delete 0.0 end
347                 $w_cviewer conf -state disabled
348
349                 set highlight_line -1
350                 set highlight_column {}
351                 set highlight_commit {}
352                 set total_lines 0
353         }
354
355         if {[winfo exists $w.status.c]} {
356                 $w.status.c coords bar 0 0 0 20
357         } else {
358                 canvas $w.status.c \
359                         -width 100 \
360                         -height [expr {int([winfo reqheight $w.status.l] * 0.6)}] \
361                         -borderwidth 1 \
362                         -relief groove \
363                         -highlightt 0
364                 $w.status.c create rectangle 0 0 0 20 -tags bar -fill navy
365                 pack $w.status.c -side right
366         }
367
368         if {$history eq {}} {
369                 $w_back conf -state disabled
370         } else {
371                 $w_back conf -state normal
372         }
373
374         # Index 0 is always empty.  There is never line 0 as
375         # we use only 1 based lines, as that matches both with
376         # git-blame output and with Tk's text widget.
377         #
378         set amov_data [list [list]]
379         set asim_data [list [list]]
380
381         set status "Loading $commit:[escape_path $path]..."
382         $w_path conf -text [escape_path $path]
383         if {$commit eq {}} {
384                 set fd [open $path r]
385         } else {
386                 set cmd [list git cat-file blob "$commit:$path"]
387                 set fd [open "| $cmd" r]
388         }
389         fconfigure $fd -blocking 0 -translation lf -encoding binary
390         fileevent $fd readable [cb _read_file $fd $jump]
391         set current_fd $fd
392 }
393
394 method _history_menu {} {
395         set m $w.backmenu
396         if {[winfo exists $m]} {
397                 $m delete 0 end
398         } else {
399                 menu $m -tearoff 0
400         }
401
402         for {set i [expr {[llength $history] - 1}]
403                 } {$i >= 0} {incr i -1} {
404                 set e [lindex $history $i]
405                 set c [lindex $e 0]
406                 set f [lindex $e 1]
407
408                 if {[regexp {^[0-9a-f]{40}$} $c]} {
409                         set t [string range $c 0 8]...
410                 } elseif {$c eq {}} {
411                         set t {Working Directory}
412                 } else {
413                         set t $c
414                 }
415                 if {![catch {set summary $header($c,summary)}]} {
416                         append t " $summary"
417                         if {[string length $t] > 70} {
418                                 set t [string range $t 0 66]...
419                         }
420                 }
421
422                 $m add command -label $t -command [cb _goback $i]
423         }
424         set X [winfo rootx $w_back]
425         set Y [expr {[winfo rooty $w_back] + [winfo height $w_back]}]
426         tk_popup $m $X $Y
427 }
428
429 method _goback {i} {
430         set dat [lindex $history $i]
431         set history [lrange $history 0 [expr {$i - 1}]]
432         set commit [lindex $dat 0]
433         set path [lindex $dat 1]
434         _load $this [lrange $dat 2 5]
435 }
436
437 method _read_file {fd jump} {
438         if {$fd ne $current_fd} {
439                 catch {close $fd}
440                 return
441         }
442
443         foreach i $w_columns {$i conf -state normal}
444         while {[gets $fd line] >= 0} {
445                 regsub "\r\$" $line {} line
446                 incr total_lines
447                 lappend amov_data {}
448                 lappend asim_data {}
449
450                 if {$total_lines > 1} {
451                         foreach i $w_columns {$i insert end "\n"}
452                 }
453
454                 $w_line insert end "$total_lines" linenumber
455                 $w_file insert end "$line"
456         }
457
458         set ln_wc [expr {[string length $total_lines] + 2}]
459         if {[$w_line cget -width] < $ln_wc} {
460                 $w_line conf -width $ln_wc
461         }
462
463         foreach i $w_columns {$i conf -state disabled}
464
465         if {[eof $fd]} {
466                 close $fd
467
468                 # If we don't force Tk to update the widgets *right now*
469                 # none of our jump commands will cause a change in the UI.
470                 #
471                 update
472
473                 if {[llength $jump] == 1} {
474                         set highlight_line [lindex $jump 0]
475                         $w_file see "$highlight_line.0"
476                 } elseif {[llength $jump] == 4} {
477                         set highlight_column [lindex $jump 0]
478                         set highlight_line [lindex $jump 1]
479                         $w_file xview moveto [lindex $jump 2]
480                         $w_file yview moveto [lindex $jump 3]
481                 }
482
483                 _exec_blame $this $w_asim @asim_data \
484                         [list] \
485                         { copy/move tracking}
486         }
487 } ifdeleted { catch {close $fd} }
488
489 method _exec_blame {cur_w cur_d options cur_s} {
490         set cmd [list]
491         if {![is_Windows] || [is_Cygwin]} {
492                 lappend cmd nice
493         }
494         lappend cmd git blame
495         set cmd [concat $cmd $options]
496         lappend cmd --incremental
497         if {$commit eq {}} {
498                 lappend cmd --contents $path
499         } else {
500                 lappend cmd $commit
501         }
502         lappend cmd -- $path
503         set fd [open "| $cmd" r]
504         fconfigure $fd -blocking 0 -translation lf -encoding binary
505         fileevent $fd readable [cb _read_blame $fd $cur_w $cur_d $cur_s]
506         set current_fd $fd
507         set blame_lines 0
508         _status $this $cur_s
509 }
510
511 method _read_blame {fd cur_w cur_d cur_s} {
512         upvar #0 $cur_d line_data
513         variable group_colors
514
515         if {$fd ne $current_fd} {
516                 catch {close $fd}
517                 return
518         }
519
520         $cur_w conf -state normal
521         while {[gets $fd line] >= 0} {
522                 if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
523                         cmit original_line final_line line_count]} {
524                         set r_commit     $cmit
525                         set r_orig_line  $original_line
526                         set r_final_line $final_line
527                         set r_line_count $line_count
528                 } elseif {[string match {filename *} $line]} {
529                         set file [string range $line 9 end]
530                         set n    $r_line_count
531                         set lno  $r_final_line
532                         set oln  $r_orig_line
533                         set cmit $r_commit
534
535                         if {[regexp {^0{40}$} $cmit]} {
536                                 set commit_abbr work
537                                 set commit_type curr_commit
538                         } elseif {$cmit eq $commit} {
539                                 set commit_abbr this
540                                 set commit_type curr_commit
541                         } else {
542                                 set commit_type prior_commit
543                                 set commit_abbr [string range $cmit 0 3]
544                         }
545
546                         set author_abbr {}
547                         set a_name {}
548                         catch {set a_name $header($cmit,author)}
549                         while {$a_name ne {}} {
550                                 if {![regexp {^([[:upper:]])} $a_name _a]} break
551                                 append author_abbr $_a
552                                 unset _a
553                                 if {![regsub \
554                                         {^[[:upper:]][^\s]*\s+} \
555                                         $a_name {} a_name ]} break
556                         }
557                         if {$author_abbr eq {}} {
558                                 set author_abbr { |}
559                         } else {
560                                 set author_abbr [string range $author_abbr 0 3]
561                         }
562                         unset a_name
563
564                         set first_lno $lno
565                         while {
566                            $first_lno > 1
567                         && $cmit eq [lindex $line_data [expr {$first_lno - 1}] 0]
568                         && $file eq [lindex $line_data [expr {$first_lno - 1}] 1]
569                         } {
570                                 incr first_lno -1
571                         }
572
573                         set color {}
574                         if {$first_lno < $lno} {
575                                 foreach g [$w_file tag names $first_lno.0] {
576                                         if {[regexp {^color[0-9]+$} $g]} {
577                                                 set color $g
578                                                 break
579                                         }
580                                 }
581                         } else {
582                                 set i [lsort [concat \
583                                         [$w_file tag names "[expr {$first_lno - 1}].0"] \
584                                         [$w_file tag names "[expr {$lno + $n}].0"] \
585                                         ]]
586                                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
587                                         if {[lsearch -sorted -exact $i color$g] == -1} {
588                                                 set color color$g
589                                                 break
590                                         }
591                                 }
592                         }
593                         if {$color eq {}} {
594                                 set color color0
595                         }
596
597                         while {$n > 0} {
598                                 set lno_e "$lno.0 lineend + 1c"
599                                 if {[lindex $line_data $lno] ne {}} {
600                                         set g [lindex $line_data $lno 0]
601                                         foreach i $w_columns {
602                                                 $i tag remove g$g $lno.0 $lno_e
603                                         }
604                                 }
605                                 lset line_data $lno [list $cmit $file $oln]
606
607                                 $cur_w delete $lno.0 "$lno.0 lineend"
608                                 if {$lno == $first_lno} {
609                                         $cur_w insert $lno.0 $commit_abbr $commit_type
610                                 } elseif {$lno == [expr {$first_lno + 1}]} {
611                                         $cur_w insert $lno.0 $author_abbr author_abbr
612                                 } else {
613                                         $cur_w insert $lno.0 { |}
614                                 }
615
616                                 foreach i $w_columns {
617                                         if {$cur_w eq $w_amov} {
618                                                 for {set g 0} \
619                                                         {$g < [llength $group_colors]} \
620                                                         {incr g} {
621                                                         $i tag remove color$g $lno.0 $lno_e
622                                                 }
623                                                 $i tag add $color $lno.0 $lno_e
624                                         }
625                                         $i tag add g$cmit $lno.0 $lno_e
626                                 }
627
628                                 if {$highlight_column eq $cur_w} {
629                                         if {$highlight_line == -1
630                                          && [lindex [$w_file yview] 0] == 0} {
631                                                 $w_file see $lno.0
632                                                 set highlight_line $lno
633                                         }
634                                         if {$highlight_line == $lno} {
635                                                 _showcommit $this $cur_w $lno
636                                         }
637                                 }
638
639                                 incr n -1
640                                 incr lno
641                                 incr oln
642                                 incr blame_lines
643                         }
644
645                         while {
646                            $cmit eq [lindex $line_data $lno 0]
647                         && $file eq [lindex $line_data $lno 1]
648                         } {
649                                 $cur_w delete $lno.0 "$lno.0 lineend"
650
651                                 if {$lno == $first_lno} {
652                                         $cur_w insert $lno.0 $commit_abbr $commit_type
653                                 } elseif {$lno == [expr {$first_lno + 1}]} {
654                                         $cur_w insert $lno.0 $author_abbr author_abbr
655                                 } else {
656                                         $cur_w insert $lno.0 { |}
657                                 }
658
659                                 if {$cur_w eq $w_amov} {
660                                         foreach i $w_columns {
661                                                 for {set g 0} \
662                                                         {$g < [llength $group_colors]} \
663                                                         {incr g} {
664                                                         $i tag remove color$g $lno.0 $lno_e
665                                                 }
666                                                 $i tag add $color $lno.0 $lno_e
667                                         }
668                                 }
669
670                                 incr lno
671                         }
672
673                 } elseif {[regexp {^([a-z-]+) (.*)$} $line line key data]} {
674                         set header($r_commit,$key) $data
675                 }
676         }
677         $cur_w conf -state disabled
678
679         if {[eof $fd]} {
680                 close $fd
681                 if {$cur_w eq $w_asim} {
682                         _exec_blame $this $w_amov @amov_data \
683                                 [list -M -C -C] \
684                                 { original location}
685                 } else {
686                         set current_fd {}
687                         set status {Annotation complete.}
688                         destroy $w.status.c
689                 }
690         } else {
691                 _status $this $cur_s
692         }
693 } ifdeleted { catch {close $fd} }
694
695 method _status {cur_s} {
696         set have  $blame_lines
697         set total $total_lines
698         set pdone 0
699         if {$total} {set pdone [expr {100 * $have / $total}]}
700
701         set status [format \
702                 "Loading%s annotations... %i of %i lines annotated (%2i%%)" \
703                 $cur_s $have $total $pdone]
704         $w.status.c coords bar 0 0 $pdone 20
705 }
706
707 method _click {cur_w pos} {
708         set lno [lindex [split [$cur_w index $pos] .] 0]
709         _showcommit $this $cur_w $lno
710 }
711
712 method _load_commit {cur_w cur_d pos} {
713         upvar #0 $cur_d line_data
714         set lno [lindex [split [$cur_w index $pos] .] 0]
715         set dat [lindex $line_data $lno]
716         if {$dat ne {}} {
717                 lappend history [list \
718                         $commit $path \
719                         $highlight_column \
720                         $highlight_line \
721                         [lindex [$w_file xview] 0] \
722                         [lindex [$w_file yview] 0] \
723                         ]
724                 set commit [lindex $dat 0]
725                 set path   [lindex $dat 1]
726                 _load $this [list [lindex $dat 2]]
727         }
728 }
729
730 method _showcommit {cur_w lno} {
731         global repo_config
732         variable active_color
733
734         if {$highlight_commit ne {}} {
735                 foreach i $w_columns {
736                         $i tag conf g$highlight_commit -background {}
737                         $i tag lower g$highlight_commit
738                 }
739         }
740
741         if {$cur_w eq $w_asim} {
742                 set dat [lindex $asim_data $lno]
743                 set highlight_column $w_asim
744         } else {
745                 set dat [lindex $amov_data $lno]
746                 set highlight_column $w_amov
747         }
748
749         $w_cviewer conf -state normal
750         $w_cviewer delete 0.0 end
751
752         if {$dat eq {}} {
753                 set cmit {}
754                 $w_cviewer insert end "Loading annotation..." still_loading
755         } else {
756                 set cmit [lindex $dat 0]
757                 set file [lindex $dat 1]
758
759                 foreach i $w_columns {
760                         $i tag conf g$cmit -background $active_color
761                         $i tag raise g$cmit
762                 }
763
764                 set author_name {}
765                 set author_email {}
766                 set author_time {}
767                 catch {set author_name $header($cmit,author)}
768                 catch {set author_email $header($cmit,author-mail)}
769                 catch {set author_time [clock format \
770                         $header($cmit,author-time) \
771                         -format {%Y-%m-%d %H:%M:%S}
772                 ]}
773
774                 set committer_name {}
775                 set committer_email {}
776                 set committer_time {}
777                 catch {set committer_name $header($cmit,committer)}
778                 catch {set committer_email $header($cmit,committer-mail)}
779                 catch {set committer_time [clock format \
780                         $header($cmit,committer-time) \
781                         -format {%Y-%m-%d %H:%M:%S}
782                 ]}
783
784                 if {[catch {set msg $header($cmit,message)}]} {
785                         set msg {}
786                         catch {
787                                 set fd [open "| git cat-file commit $cmit" r]
788                                 fconfigure $fd -encoding binary -translation lf
789                                 if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
790                                         set enc utf-8
791                                 }
792                                 while {[gets $fd line] > 0} {
793                                         if {[string match {encoding *} $line]} {
794                                                 set enc [string tolower [string range $line 9 end]]
795                                         }
796                                 }
797                                 set msg [encoding convertfrom $enc [read $fd]]
798                                 set msg [string trim $msg]
799                                 close $fd
800
801                                 set author_name [encoding convertfrom $enc $author_name]
802                                 set committer_name [encoding convertfrom $enc $committer_name]
803
804                                 set header($cmit,author) $author_name
805                                 set header($cmit,committer) $committer_name
806                         }
807                         set header($cmit,message) $msg
808                 }
809
810                 $w_cviewer insert end "commit $cmit\n" header_key
811                 $w_cviewer insert end "Author:\t" header_key
812                 $w_cviewer insert end "$author_name $author_email" header_val
813                 $w_cviewer insert end "  $author_time\n" header_val
814
815                 $w_cviewer insert end "Committer:\t" header_key
816                 $w_cviewer insert end "$committer_name $committer_email" header_val
817                 $w_cviewer insert end "  $committer_time\n" header_val
818
819                 if {$file ne $path} {
820                         $w_cviewer insert end "Original File:\t" header_key
821                         $w_cviewer insert end "[escape_path $file]\n" header_val
822                 }
823
824                 $w_cviewer insert end "\n$msg"
825         }
826         $w_cviewer conf -state disabled
827
828         set highlight_line $lno
829         set highlight_commit $cmit
830
831         if {[lsearch -exact $tooltip_commit $highlight_commit] != -1} {
832                 _hide_tooltip $this
833         }
834 }
835
836 method _copycommit {} {
837         set pos @$::cursorX,$::cursorY
838         set lno [lindex [split [$::cursorW index $pos] .] 0]
839         set dat [lindex $amov_data $lno]
840         if {$dat ne {}} {
841                 clipboard clear
842                 clipboard append \
843                         -format STRING \
844                         -type STRING \
845                         -- [lindex $dat 0]
846         }
847 }
848
849 method _show_tooltip {cur_w pos} {
850         if {$tooltip_wm ne {}} {
851                 _open_tooltip $this $cur_w
852         } elseif {$tooltip_timer eq {}} {
853                 set tooltip_timer [after 1000 [cb _open_tooltip $cur_w]]
854         }
855 }
856
857 method _open_tooltip {cur_w} {
858         set tooltip_timer {}
859         set pos_x [winfo pointerx $cur_w]
860         set pos_y [winfo pointery $cur_w]
861         if {[winfo containing $pos_x $pos_y] ne $cur_w} {
862                 _hide_tooltip $this
863                 return
864         }
865
866         if {$tooltip_wm ne "$cur_w.tooltip"} {
867                 _hide_tooltip $this
868
869                 set tooltip_wm [toplevel $cur_w.tooltip -borderwidth 1]
870                 wm overrideredirect $tooltip_wm 1
871                 wm transient $tooltip_wm [winfo toplevel $cur_w]
872                 set tooltip_t $tooltip_wm.label
873                 text $tooltip_t \
874                         -takefocus 0 \
875                         -highlightthickness 0 \
876                         -relief flat \
877                         -borderwidth 0 \
878                         -wrap none \
879                         -background lightyellow \
880                         -foreground black
881                 $tooltip_t tag conf section_header -font font_uibold
882                 pack $tooltip_t
883         } else {
884                 $tooltip_t conf -state normal
885                 $tooltip_t delete 0.0 end
886         }
887
888         set pos @[join [list \
889                 [expr {$pos_x - [winfo rootx $cur_w]}] \
890                 [expr {$pos_y - [winfo rooty $cur_w]}]] ,]
891         set lno [lindex [split [$cur_w index $pos] .] 0]
892         if {$cur_w eq $w_amov} {
893                 set dat [lindex $amov_data $lno]
894                 set org {}
895         } else {
896                 set dat [lindex $asim_data $lno]
897                 set org [lindex $amov_data $lno]
898         }
899
900         set cmit [lindex $dat 0]
901         set tooltip_commit [list $cmit]
902
903         set author_name {}
904         set summary     {}
905         set author_time {}
906         catch {set author_name $header($cmit,author)}
907         catch {set summary     $header($cmit,summary)}
908         catch {set author_time [clock format \
909                 $header($cmit,author-time) \
910                 -format {%Y-%m-%d %H:%M:%S}
911         ]}
912
913         $tooltip_t insert end "commit $cmit\n"
914         $tooltip_t insert end "$author_name  $author_time\n"
915         $tooltip_t insert end "$summary"
916
917         if {$org ne {} && [lindex $org 0] ne $cmit} {
918                 set save [$tooltip_t get 0.0 end]
919                 $tooltip_t delete 0.0 end
920
921                 set cmit [lindex $org 0]
922                 set file [lindex $org 1]
923                 lappend tooltip_commit $cmit
924
925                 set author_name {}
926                 set summary     {}
927                 set author_time {}
928                 catch {set author_name $header($cmit,author)}
929                 catch {set summary     $header($cmit,summary)}
930                 catch {set author_time [clock format \
931                         $header($cmit,author-time) \
932                         -format {%Y-%m-%d %H:%M:%S}
933                 ]}
934
935                 $tooltip_t insert end "Originally By:\n" section_header
936                 $tooltip_t insert end "commit $cmit\n"
937                 $tooltip_t insert end "$author_name  $author_time\n"
938                 $tooltip_t insert end "$summary\n"
939
940                 if {$file ne $path} {
941                         $tooltip_t insert end "In File: " section_header
942                         $tooltip_t insert end "$file\n"
943                 }
944
945                 $tooltip_t insert end "\n"
946                 $tooltip_t insert end "Copied Or Moved Here By:\n" section_header
947                 $tooltip_t insert end $save
948         }
949
950         $tooltip_t conf -state disabled
951         _position_tooltip $this
952 }
953
954 method _position_tooltip {} {
955         set max_h [lindex [split [$tooltip_t index end] .] 0]
956         set max_w 0
957         for {set i 1} {$i <= $max_h} {incr i} {
958                 set c [lindex [split [$tooltip_t index "$i.0 lineend"] .] 1]
959                 if {$c > $max_w} {set max_w $c}
960         }
961         $tooltip_t conf -width $max_w -height $max_h
962
963         set req_w [winfo reqwidth  $tooltip_t]
964         set req_h [winfo reqheight $tooltip_t]
965         set pos_x [expr {[winfo pointerx .] +  5}]
966         set pos_y [expr {[winfo pointery .] + 10}]
967
968         set g "${req_w}x${req_h}"
969         if {$pos_x >= 0} {append g +}
970         append g $pos_x
971         if {$pos_y >= 0} {append g +}
972         append g $pos_y
973
974         wm geometry $tooltip_wm $g
975         raise $tooltip_wm
976 }
977
978 method _hide_tooltip {} {
979         if {$tooltip_wm ne {}} {
980                 destroy $tooltip_wm
981                 set tooltip_wm {}
982                 set tooltip_commit {}
983         }
984         if {$tooltip_timer ne {}} {
985                 after cancel $tooltip_timer
986                 set tooltip_timer {}
987         }
988 }
989
990 method _resize {new_height} {
991         set diff [expr {$new_height - $old_height}]
992         if {$diff == 0} return
993
994         set my [expr {[winfo height $w.file_pane] - 25}]
995         set o [$w.file_pane sash coord 0]
996         set ox [lindex $o 0]
997         set oy [expr {[lindex $o 1] + $diff}]
998         if {$oy < 0}   {set oy 0}
999         if {$oy > $my} {set oy $my}
1000         $w.file_pane sash place 0 $ox $oy
1001
1002         set old_height $new_height
1003 }
1004
1005 }