Merge branch 'rs/decorate'
[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 # 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 i_jump} {
62         global cursor_ptr
63         variable active_color
64         variable group_colors
65
66         set commit $i_commit
67         set path   $i_path
68
69         make_toplevel top w
70         wm title $top [append "[appname] ([reponame]): " [mc "File Viewer"]]
71
72         frame $w.header -background gold
73         label $w.header.commit_l \
74                 -text [mc "Commit:"] \
75                 -background gold \
76                 -foreground black \
77                 -anchor w \
78                 -justify left
79         set w_back $w.header.commit_b
80         label $w_back \
81                 -image ::blame::img_back_arrow \
82                 -borderwidth 0 \
83                 -relief flat \
84                 -state disabled \
85                 -background gold \
86                 -foreground black \
87                 -activebackground gold
88         bind $w_back <Button-1> "
89                 if {\[$w_back cget -state\] eq {normal}} {
90                         [cb _history_menu]
91                 }
92                 "
93         label $w.header.commit \
94                 -textvariable @commit \
95                 -background gold \
96                 -foreground black \
97                 -anchor w \
98                 -justify left
99         label $w.header.path_l \
100                 -text [mc "File:"] \
101                 -background gold \
102                 -foreground black \
103                 -anchor w \
104                 -justify left
105         set w_path $w.header.path
106         label $w_path \
107                 -background gold \
108                 -foreground black \
109                 -anchor w \
110                 -justify left
111         pack $w.header.commit_l -side left
112         pack $w_back -side left
113         pack $w.header.commit -side left
114         pack $w_path -fill x -side right
115         pack $w.header.path_l -side right
116
117         panedwindow $w.file_pane -orient vertical
118         frame $w.file_pane.out
119         frame $w.file_pane.cm
120         $w.file_pane add $w.file_pane.out \
121                 -sticky nsew \
122                 -minsize 100 \
123                 -height 100 \
124                 -width 100
125         $w.file_pane add $w.file_pane.cm \
126                 -sticky nsew \
127                 -minsize 25 \
128                 -height 25 \
129                 -width 100
130
131         set w_line $w.file_pane.out.linenumber_t
132         text $w_line \
133                 -takefocus 0 \
134                 -highlightthickness 0 \
135                 -padx 0 -pady 0 \
136                 -background white \
137                 -foreground black \
138                 -borderwidth 0 \
139                 -state disabled \
140                 -wrap none \
141                 -height 40 \
142                 -width 6 \
143                 -font font_diff
144         $w_line tag conf linenumber -justify right -rmargin 5
145
146         set w_amov $w.file_pane.out.amove_t
147         text $w_amov \
148                 -takefocus 0 \
149                 -highlightthickness 0 \
150                 -padx 0 -pady 0 \
151                 -background white \
152                 -foreground black \
153                 -borderwidth 0 \
154                 -state disabled \
155                 -wrap none \
156                 -height 40 \
157                 -width 5 \
158                 -font font_diff
159         $w_amov tag conf author_abbr -justify right -rmargin 5
160         $w_amov tag conf curr_commit
161         $w_amov tag conf prior_commit -foreground blue -underline 1
162         $w_amov tag bind prior_commit \
163                 <Button-1> \
164                 "[cb _load_commit $w_amov @amov_data @%x,%y];break"
165
166         set w_asim $w.file_pane.out.asimple_t
167         text $w_asim \
168                 -takefocus 0 \
169                 -highlightthickness 0 \
170                 -padx 0 -pady 0 \
171                 -background white \
172                 -foreground black \
173                 -borderwidth 0 \
174                 -state disabled \
175                 -wrap none \
176                 -height 40 \
177                 -width 4 \
178                 -font font_diff
179         $w_asim tag conf author_abbr -justify right
180         $w_asim tag conf curr_commit
181         $w_asim tag conf prior_commit -foreground blue -underline 1
182         $w_asim tag bind prior_commit \
183                 <Button-1> \
184                 "[cb _load_commit $w_asim @asim_data @%x,%y];break"
185
186         set w_file $w.file_pane.out.file_t
187         text $w_file \
188                 -takefocus 0 \
189                 -highlightthickness 0 \
190                 -padx 0 -pady 0 \
191                 -background white \
192                 -foreground black \
193                 -borderwidth 0 \
194                 -state disabled \
195                 -wrap none \
196                 -height 40 \
197                 -width 80 \
198                 -xscrollcommand [list $w.file_pane.out.sbx set] \
199                 -font font_diff
200
201         set w_columns [list $w_amov $w_asim $w_line $w_file]
202
203         scrollbar $w.file_pane.out.sbx \
204                 -orient h \
205                 -command [list $w_file xview]
206         scrollbar $w.file_pane.out.sby \
207                 -orient v \
208                 -command [list scrollbar2many $w_columns yview]
209         eval grid $w_columns $w.file_pane.out.sby -sticky nsew
210         grid conf \
211                 $w.file_pane.out.sbx \
212                 -column [expr {[llength $w_columns] - 1}] \
213                 -sticky we
214         grid columnconfigure \
215                 $w.file_pane.out \
216                 [expr {[llength $w_columns] - 1}] \
217                 -weight 1
218         grid rowconfigure $w.file_pane.out 0 -weight 1
219
220         set w_cviewer $w.file_pane.cm.t
221         text $w_cviewer \
222                 -background white \
223                 -foreground black \
224                 -borderwidth 0 \
225                 -state disabled \
226                 -wrap none \
227                 -height 10 \
228                 -width 80 \
229                 -xscrollcommand [list $w.file_pane.cm.sbx set] \
230                 -yscrollcommand [list $w.file_pane.cm.sby set] \
231                 -font font_diff
232         $w_cviewer tag conf still_loading \
233                 -font font_uiitalic \
234                 -justify center
235         $w_cviewer tag conf header_key \
236                 -tabs {3c} \
237                 -background $active_color \
238                 -font font_uibold
239         $w_cviewer tag conf header_val \
240                 -background $active_color \
241                 -font font_ui
242         $w_cviewer tag raise sel
243         scrollbar $w.file_pane.cm.sbx \
244                 -orient h \
245                 -command [list $w_cviewer xview]
246         scrollbar $w.file_pane.cm.sby \
247                 -orient v \
248                 -command [list $w_cviewer yview]
249         pack $w.file_pane.cm.sby -side right -fill y
250         pack $w.file_pane.cm.sbx -side bottom -fill x
251         pack $w_cviewer -expand 1 -fill both
252
253         set status [::status_bar::new $w.status]
254
255         menu $w.ctxm -tearoff 0
256         $w.ctxm add command \
257                 -label [mc "Copy Commit"] \
258                 -command [cb _copycommit]
259         $w.ctxm add command \
260                 -label [mc "Do Full Copy Detection"] \
261                 -command [cb _fullcopyblame]
262         $w.ctxm add command \
263                 -label [mc "Show History Context"] \
264                 -command [cb _gitkcommit]
265         $w.ctxm add command \
266                 -label [mc "Blame Parent Commit"] \
267                 -command [cb _blameparent]
268
269         foreach i $w_columns {
270                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
271                         $i tag conf color$g -background [lindex $group_colors $g]
272                 }
273
274                 $i conf -cursor $cursor_ptr
275                 $i conf -yscrollcommand [list many2scrollbar \
276                         $w_columns yview $w.file_pane.out.sby]
277                 bind $i <Button-1> "
278                         [cb _hide_tooltip]
279                         [cb _click $i @%x,%y]
280                         focus $i
281                 "
282                 bind $i <Any-Motion>  [cb _show_tooltip $i @%x,%y]
283                 bind $i <Any-Enter>   [cb _hide_tooltip]
284                 bind $i <Any-Leave>   [cb _hide_tooltip]
285                 bind_button3 $i "
286                         [cb _hide_tooltip]
287                         set cursorX %x
288                         set cursorY %y
289                         set cursorW %W
290                         tk_popup $w.ctxm %X %Y
291                 "
292                 bind $i <Shift-Tab> "[list focus $w_cviewer];break"
293                 bind $i <Tab>       "[list focus $w_cviewer];break"
294         }
295
296         foreach i [concat $w_columns $w_cviewer] {
297                 bind $i <Key-Up>        {catch {%W yview scroll -1 units};break}
298                 bind $i <Key-Down>      {catch {%W yview scroll  1 units};break}
299                 bind $i <Key-Left>      {catch {%W xview scroll -1 units};break}
300                 bind $i <Key-Right>     {catch {%W xview scroll  1 units};break}
301                 bind $i <Key-k>         {catch {%W yview scroll -1 units};break}
302                 bind $i <Key-j>         {catch {%W yview scroll  1 units};break}
303                 bind $i <Key-h>         {catch {%W xview scroll -1 units};break}
304                 bind $i <Key-l>         {catch {%W xview scroll  1 units};break}
305                 bind $i <Control-Key-b> {catch {%W yview scroll -1 pages};break}
306                 bind $i <Control-Key-f> {catch {%W yview scroll  1 pages};break}
307         }
308
309         bind $w_cviewer <Shift-Tab> "[list focus $w_file];break"
310         bind $w_cviewer <Tab>       "[list focus $w_file];break"
311         bind $w_cviewer <Button-1> [list focus $w_cviewer]
312         bind $w_file    <Visibility> [list focus $w_file]
313
314         grid configure $w.header -sticky ew
315         grid configure $w.file_pane -sticky nsew
316         grid configure $w.status -sticky ew
317         grid columnconfigure $top 0 -weight 1
318         grid rowconfigure $top 0 -weight 0
319         grid rowconfigure $top 1 -weight 1
320         grid rowconfigure $top 2 -weight 0
321
322         set req_w [winfo reqwidth  $top]
323         set req_h [winfo reqheight $top]
324         set scr_h [expr {[winfo screenheight $top] - 100}]
325         if {$req_w < 600} {set req_w 600}
326         if {$req_h < $scr_h} {set req_h $scr_h}
327         set g "${req_w}x${req_h}"
328         wm geometry $top $g
329         update
330
331         set old_height [winfo height $w.file_pane]
332         $w.file_pane sash place 0 \
333                 [lindex [$w.file_pane sash coord 0] 0] \
334                 [expr {int($old_height * 0.70)}]
335         bind $w.file_pane <Configure> \
336         "if {{$w.file_pane} eq {%W}} {[cb _resize %h]}"
337
338         wm protocol $top WM_DELETE_WINDOW "destroy $top"
339         bind $top <Destroy> [cb _kill]
340
341         _load $this $i_jump
342 }
343
344 method _kill {} {
345         if {$current_fd ne {}} {
346                 kill_file_process $current_fd
347                 catch {close $current_fd}
348                 set current_fd {}
349         }
350 }
351
352 method _load {jump} {
353         variable group_colors
354
355         _hide_tooltip $this
356
357         if {$total_lines != 0 || $current_fd ne {}} {
358                 _kill $this
359
360                 foreach i $w_columns {
361                         $i conf -state normal
362                         $i delete 0.0 end
363                         foreach g [$i tag names] {
364                                 if {[regexp {^g[0-9a-f]{40}$} $g]} {
365                                         $i tag delete $g
366                                 }
367                         }
368                         $i conf -state disabled
369                 }
370
371                 $w_cviewer conf -state normal
372                 $w_cviewer delete 0.0 end
373                 $w_cviewer conf -state disabled
374
375                 set highlight_line -1
376                 set highlight_column {}
377                 set highlight_commit {}
378                 set total_lines 0
379         }
380
381         if {$history eq {}} {
382                 $w_back conf -state disabled
383         } else {
384                 $w_back conf -state normal
385         }
386
387         # Index 0 is always empty.  There is never line 0 as
388         # we use only 1 based lines, as that matches both with
389         # git-blame output and with Tk's text widget.
390         #
391         set amov_data [list [list]]
392         set asim_data [list [list]]
393
394         $status show [mc "Reading %s..." "$commit:[escape_path $path]"]
395         $w_path conf -text [escape_path $path]
396         if {$commit eq {}} {
397                 set fd [open $path r]
398                 fconfigure $fd -eofchar {}
399         } else {
400                 set fd [git_read cat-file blob "$commit:$path"]
401         }
402         fconfigure $fd -blocking 0 -translation lf -encoding binary
403         fileevent $fd readable [cb _read_file $fd $jump]
404         set current_fd $fd
405 }
406
407 method _history_menu {} {
408         set m $w.backmenu
409         if {[winfo exists $m]} {
410                 $m delete 0 end
411         } else {
412                 menu $m -tearoff 0
413         }
414
415         for {set i [expr {[llength $history] - 1}]
416                 } {$i >= 0} {incr i -1} {
417                 set e [lindex $history $i]
418                 set c [lindex $e 0]
419                 set f [lindex $e 1]
420
421                 if {[regexp {^[0-9a-f]{40}$} $c]} {
422                         set t [string range $c 0 8]...
423                 } elseif {$c eq {}} {
424                         set t {Working Directory}
425                 } else {
426                         set t $c
427                 }
428                 if {![catch {set summary $header($c,summary)}]} {
429                         append t " $summary"
430                         if {[string length $t] > 70} {
431                                 set t [string range $t 0 66]...
432                         }
433                 }
434
435                 $m add command -label $t -command [cb _goback $i]
436         }
437         set X [winfo rootx $w_back]
438         set Y [expr {[winfo rooty $w_back] + [winfo height $w_back]}]
439         tk_popup $m $X $Y
440 }
441
442 method _goback {i} {
443         set dat [lindex $history $i]
444         set history [lrange $history 0 [expr {$i - 1}]]
445         set commit [lindex $dat 0]
446         set path [lindex $dat 1]
447         _load $this [lrange $dat 2 5]
448 }
449
450 method _read_file {fd jump} {
451         if {$fd ne $current_fd} {
452                 catch {close $fd}
453                 return
454         }
455
456         foreach i $w_columns {$i conf -state normal}
457         while {[gets $fd line] >= 0} {
458                 regsub "\r\$" $line {} line
459                 incr total_lines
460                 lappend amov_data {}
461                 lappend asim_data {}
462
463                 if {$total_lines > 1} {
464                         foreach i $w_columns {$i insert end "\n"}
465                 }
466
467                 $w_line insert end "$total_lines" linenumber
468                 $w_file insert end "$line"
469         }
470
471         set ln_wc [expr {[string length $total_lines] + 2}]
472         if {[$w_line cget -width] < $ln_wc} {
473                 $w_line conf -width $ln_wc
474         }
475
476         foreach i $w_columns {$i conf -state disabled}
477
478         if {[eof $fd]} {
479                 close $fd
480
481                 # If we don't force Tk to update the widgets *right now*
482                 # none of our jump commands will cause a change in the UI.
483                 #
484                 update
485
486                 if {[llength $jump] == 1} {
487                         set highlight_line [lindex $jump 0]
488                         $w_file see "$highlight_line.0"
489                 } elseif {[llength $jump] == 4} {
490                         set highlight_column [lindex $jump 0]
491                         set highlight_line [lindex $jump 1]
492                         $w_file xview moveto [lindex $jump 2]
493                         $w_file yview moveto [lindex $jump 3]
494                 }
495
496                 _exec_blame $this $w_asim @asim_data \
497                         [list] \
498                         [mc "Loading copy/move tracking annotations..."]
499         }
500 } ifdeleted { catch {close $fd} }
501
502 method _exec_blame {cur_w cur_d options cur_s} {
503         lappend options --incremental
504         if {$commit eq {}} {
505                 lappend options --contents $path
506         } else {
507                 lappend options $commit
508         }
509         lappend options -- $path
510         set fd [eval git_read --nice blame $options]
511         fconfigure $fd -blocking 0 -translation lf -encoding binary
512         fileevent $fd readable [cb _read_blame $fd $cur_w $cur_d]
513         set current_fd $fd
514         set blame_lines 0
515
516         $status start \
517                 $cur_s \
518                 [mc "lines annotated"]
519 }
520
521 method _read_blame {fd cur_w cur_d} {
522         upvar #0 $cur_d line_data
523         variable group_colors
524
525         if {$fd ne $current_fd} {
526                 catch {close $fd}
527                 return
528         }
529
530         $cur_w conf -state normal
531         while {[gets $fd line] >= 0} {
532                 if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
533                         cmit original_line final_line line_count]} {
534                         set r_commit     $cmit
535                         set r_orig_line  $original_line
536                         set r_final_line $final_line
537                         set r_line_count $line_count
538                 } elseif {[string match {filename *} $line]} {
539                         set file [string range $line 9 end]
540                         set n    $r_line_count
541                         set lno  $r_final_line
542                         set oln  $r_orig_line
543                         set cmit $r_commit
544
545                         if {[regexp {^0{40}$} $cmit]} {
546                                 set commit_abbr work
547                                 set commit_type curr_commit
548                         } elseif {$cmit eq $commit} {
549                                 set commit_abbr this
550                                 set commit_type curr_commit
551                         } else {
552                                 set commit_type prior_commit
553                                 set commit_abbr [string range $cmit 0 3]
554                         }
555
556                         set author_abbr {}
557                         set a_name {}
558                         catch {set a_name $header($cmit,author)}
559                         while {$a_name ne {}} {
560                                 if {$author_abbr ne {}
561                                         && [string index $a_name 0] eq {'}} {
562                                         regsub {^'[^']+'\s+} $a_name {} a_name
563                                 }
564                                 if {![regexp {^([[:upper:]])} $a_name _a]} break
565                                 append author_abbr $_a
566                                 unset _a
567                                 if {![regsub \
568                                         {^[[:upper:]][^\s]*\s+} \
569                                         $a_name {} a_name ]} break
570                         }
571                         if {$author_abbr eq {}} {
572                                 set author_abbr { |}
573                         } else {
574                                 set author_abbr [string range $author_abbr 0 3]
575                         }
576                         unset a_name
577
578                         set first_lno $lno
579                         while {
580                            $first_lno > 1
581                         && $cmit eq [lindex $line_data [expr {$first_lno - 1}] 0]
582                         && $file eq [lindex $line_data [expr {$first_lno - 1}] 1]
583                         } {
584                                 incr first_lno -1
585                         }
586
587                         set color {}
588                         if {$first_lno < $lno} {
589                                 foreach g [$w_file tag names $first_lno.0] {
590                                         if {[regexp {^color[0-9]+$} $g]} {
591                                                 set color $g
592                                                 break
593                                         }
594                                 }
595                         } else {
596                                 set i [lsort [concat \
597                                         [$w_file tag names "[expr {$first_lno - 1}].0"] \
598                                         [$w_file tag names "[expr {$lno + $n}].0"] \
599                                         ]]
600                                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
601                                         if {[lsearch -sorted -exact $i color$g] == -1} {
602                                                 set color color$g
603                                                 break
604                                         }
605                                 }
606                         }
607                         if {$color eq {}} {
608                                 set color color0
609                         }
610
611                         while {$n > 0} {
612                                 set lno_e "$lno.0 lineend + 1c"
613                                 if {[lindex $line_data $lno] ne {}} {
614                                         set g [lindex $line_data $lno 0]
615                                         foreach i $w_columns {
616                                                 $i tag remove g$g $lno.0 $lno_e
617                                         }
618                                 }
619                                 lset line_data $lno [list $cmit $file $oln]
620
621                                 $cur_w delete $lno.0 "$lno.0 lineend"
622                                 if {$lno == $first_lno} {
623                                         $cur_w insert $lno.0 $commit_abbr $commit_type
624                                 } elseif {$lno == [expr {$first_lno + 1}]} {
625                                         $cur_w insert $lno.0 $author_abbr author_abbr
626                                 } else {
627                                         $cur_w insert $lno.0 { |}
628                                 }
629
630                                 foreach i $w_columns {
631                                         if {$cur_w eq $w_amov} {
632                                                 for {set g 0} \
633                                                         {$g < [llength $group_colors]} \
634                                                         {incr g} {
635                                                         $i tag remove color$g $lno.0 $lno_e
636                                                 }
637                                                 $i tag add $color $lno.0 $lno_e
638                                         }
639                                         $i tag add g$cmit $lno.0 $lno_e
640                                 }
641
642                                 if {$highlight_column eq $cur_w} {
643                                         if {$highlight_line == -1
644                                          && [lindex [$w_file yview] 0] == 0} {
645                                                 $w_file see $lno.0
646                                                 set highlight_line $lno
647                                         }
648                                         if {$highlight_line == $lno} {
649                                                 _showcommit $this $cur_w $lno
650                                         }
651                                 }
652
653                                 incr n -1
654                                 incr lno
655                                 incr oln
656                                 incr blame_lines
657                         }
658
659                         while {
660                            $cmit eq [lindex $line_data $lno 0]
661                         && $file eq [lindex $line_data $lno 1]
662                         } {
663                                 $cur_w delete $lno.0 "$lno.0 lineend"
664
665                                 if {$lno == $first_lno} {
666                                         $cur_w insert $lno.0 $commit_abbr $commit_type
667                                 } elseif {$lno == [expr {$first_lno + 1}]} {
668                                         $cur_w insert $lno.0 $author_abbr author_abbr
669                                 } else {
670                                         $cur_w insert $lno.0 { |}
671                                 }
672
673                                 if {$cur_w eq $w_amov} {
674                                         foreach i $w_columns {
675                                                 for {set g 0} \
676                                                         {$g < [llength $group_colors]} \
677                                                         {incr g} {
678                                                         $i tag remove color$g $lno.0 $lno_e
679                                                 }
680                                                 $i tag add $color $lno.0 $lno_e
681                                         }
682                                 }
683
684                                 incr lno
685                         }
686
687                 } elseif {[regexp {^([a-z-]+) (.*)$} $line line key data]} {
688                         set header($r_commit,$key) $data
689                 }
690         }
691         $cur_w conf -state disabled
692
693         if {[eof $fd]} {
694                 close $fd
695                 if {$cur_w eq $w_asim} {
696                         # Switches for original location detection
697                         set threshold [get_config gui.copyblamethreshold]
698                         set original_options [list "-C$threshold"]
699
700                         if {![is_config_true gui.fastcopyblame]} {
701                                 # thorough copy search; insert before the threshold
702                                 set original_options [linsert $original_options 0 -C]
703                         }
704                         if {[git-version >= 1.5.3]} {
705                                 lappend original_options -w ; # ignore indentation changes
706                         }
707
708                         _exec_blame $this $w_amov @amov_data \
709                                 $original_options \
710                                 [mc "Loading original location annotations..."]
711                 } else {
712                         set current_fd {}
713                         $status stop [mc "Annotation complete."]
714                 }
715         } else {
716                 $status update $blame_lines $total_lines
717         }
718 } ifdeleted { catch {close $fd} }
719
720 method _find_commit_bound {data_list start_idx delta} {
721         upvar #0 $data_list line_data
722         set pos $start_idx
723         set limit       [expr {[llength $line_data] - 1}]
724         set base_commit [lindex $line_data $pos 0]
725
726         while {$pos > 0 && $pos < $limit} {
727                 set new_pos [expr {$pos + $delta}]
728                 if {[lindex $line_data $new_pos 0] ne $base_commit} {
729                         return $pos
730                 }
731
732                 set pos $new_pos
733         }
734
735         return $pos
736 }
737
738 method _fullcopyblame {} {
739         if {$current_fd ne {}} {
740                 tk_messageBox \
741                         -icon error \
742                         -type ok \
743                         -title [mc "Busy"] \
744                         -message [mc "Annotation process is already running."]
745
746                 return
747         }
748
749         # Switches for original location detection
750         set threshold [get_config gui.copyblamethreshold]
751         set original_options [list -C -C "-C$threshold"]
752
753         if {[git-version >= 1.5.3]} {
754                 lappend original_options -w ; # ignore indentation changes
755         }
756
757         # Find the line range
758         set pos @$::cursorX,$::cursorY
759         set lno [lindex [split [$::cursorW index $pos] .] 0]
760         set min_amov_lno [_find_commit_bound $this @amov_data $lno -1]
761         set max_amov_lno [_find_commit_bound $this @amov_data $lno 1]
762         set min_asim_lno [_find_commit_bound $this @asim_data $lno -1]
763         set max_asim_lno [_find_commit_bound $this @asim_data $lno 1]
764
765         if {$min_asim_lno < $min_amov_lno} {
766                 set min_amov_lno $min_asim_lno
767         }
768
769         if {$max_asim_lno > $max_amov_lno} {
770                 set max_amov_lno $max_asim_lno
771         }
772
773         lappend original_options -L "$min_amov_lno,$max_amov_lno"
774
775         # Clear lines
776         for {set i $min_amov_lno} {$i <= $max_amov_lno} {incr i} {
777                 lset amov_data $i [list ]
778         }
779
780         # Start the back-end process
781         _exec_blame $this $w_amov @amov_data \
782                 $original_options \
783                 [mc "Running thorough copy detection..."]
784 }
785
786 method _click {cur_w pos} {
787         set lno [lindex [split [$cur_w index $pos] .] 0]
788         _showcommit $this $cur_w $lno
789 }
790
791 method _load_commit {cur_w cur_d pos} {
792         upvar #0 $cur_d line_data
793         set lno [lindex [split [$cur_w index $pos] .] 0]
794         set dat [lindex $line_data $lno]
795         if {$dat ne {}} {
796                 _load_new_commit $this  \
797                         [lindex $dat 0] \
798                         [lindex $dat 1] \
799                         [list [lindex $dat 2]]
800         }
801 }
802
803 method _load_new_commit {new_commit new_path jump} {
804         lappend history [list \
805                 $commit $path \
806                 $highlight_column \
807                 $highlight_line \
808                 [lindex [$w_file xview] 0] \
809                 [lindex [$w_file yview] 0] \
810                 ]
811
812         set commit $new_commit
813         set path   $new_path
814         _load $this $jump
815 }
816
817 method _showcommit {cur_w lno} {
818         global repo_config
819         variable active_color
820
821         if {$highlight_commit ne {}} {
822                 foreach i $w_columns {
823                         $i tag conf g$highlight_commit -background {}
824                         $i tag lower g$highlight_commit
825                 }
826         }
827
828         if {$cur_w eq $w_asim} {
829                 set dat [lindex $asim_data $lno]
830                 set highlight_column $w_asim
831         } else {
832                 set dat [lindex $amov_data $lno]
833                 set highlight_column $w_amov
834         }
835
836         $w_cviewer conf -state normal
837         $w_cviewer delete 0.0 end
838
839         if {$dat eq {}} {
840                 set cmit {}
841                 $w_cviewer insert end [mc "Loading annotation..."] still_loading
842         } else {
843                 set cmit [lindex $dat 0]
844                 set file [lindex $dat 1]
845
846                 foreach i $w_columns {
847                         $i tag conf g$cmit -background $active_color
848                         $i tag raise g$cmit
849                 }
850
851                 set author_name {}
852                 set author_email {}
853                 set author_time {}
854                 catch {set author_name $header($cmit,author)}
855                 catch {set author_email $header($cmit,author-mail)}
856                 catch {set author_time [format_date $header($cmit,author-time)]}
857
858                 set committer_name {}
859                 set committer_email {}
860                 set committer_time {}
861                 catch {set committer_name $header($cmit,committer)}
862                 catch {set committer_email $header($cmit,committer-mail)}
863                 catch {set committer_time [format_date $header($cmit,committer-time)]}
864
865                 if {[catch {set msg $header($cmit,message)}]} {
866                         set msg {}
867                         catch {
868                                 set fd [git_read cat-file commit $cmit]
869                                 fconfigure $fd -encoding binary -translation lf
870                                 if {[catch {set enc $repo_config(i18n.commitencoding)}]} {
871                                         set enc utf-8
872                                 }
873                                 while {[gets $fd line] > 0} {
874                                         if {[string match {encoding *} $line]} {
875                                                 set enc [string tolower [string range $line 9 end]]
876                                         }
877                                 }
878                                 set msg [read $fd]
879                                 close $fd
880
881                                 set enc [tcl_encoding $enc]
882                                 if {$enc ne {}} {
883                                         set msg [encoding convertfrom $enc $msg]
884                                         set author_name [encoding convertfrom $enc $author_name]
885                                         set committer_name [encoding convertfrom $enc $committer_name]
886                                         set header($cmit,author) $author_name
887                                         set header($cmit,committer) $committer_name
888                                         set header($cmit,summary) \
889                                         [encoding convertfrom $enc $header($cmit,summary)]
890                                 }
891                                 set msg [string trim $msg]
892                         }
893                         set header($cmit,message) $msg
894                 }
895
896                 $w_cviewer insert end "commit $cmit\n" header_key
897                 $w_cviewer insert end [strcat [mc "Author:"] "\t"] header_key
898                 $w_cviewer insert end "$author_name $author_email" header_val
899                 $w_cviewer insert end "  $author_time\n" header_val
900
901                 $w_cviewer insert end [strcat [mc "Committer:"] "\t"] header_key
902                 $w_cviewer insert end "$committer_name $committer_email" header_val
903                 $w_cviewer insert end "  $committer_time\n" header_val
904
905                 if {$file ne $path} {
906                         $w_cviewer insert end [strcat [mc "Original File:"] "\t"] header_key
907                         $w_cviewer insert end "[escape_path $file]\n" header_val
908                 }
909
910                 $w_cviewer insert end "\n$msg"
911         }
912         $w_cviewer conf -state disabled
913
914         set highlight_line $lno
915         set highlight_commit $cmit
916
917         if {[lsearch -exact $tooltip_commit $highlight_commit] != -1} {
918                 _hide_tooltip $this
919         }
920 }
921
922 method _get_click_amov_info {} {
923         set pos @$::cursorX,$::cursorY
924         set lno [lindex [split [$::cursorW index $pos] .] 0]
925         return [lindex $amov_data $lno]
926 }
927
928 method _copycommit {} {
929         set dat [_get_click_amov_info $this]
930         if {$dat ne {}} {
931                 clipboard clear
932                 clipboard append \
933                         -format STRING \
934                         -type STRING \
935                         -- [lindex $dat 0]
936         }
937 }
938
939 method _format_offset_date {base offset} {
940         set exval [expr {$base + $offset*24*60*60}]
941         return [clock format $exval -format {%Y-%m-%d}]
942 }
943
944 method _gitkcommit {} {
945         set dat [_get_click_amov_info $this]
946         if {$dat ne {}} {
947                 set cmit [lindex $dat 0]
948                 set radius [get_config gui.blamehistoryctx]
949                 set cmdline [list --select-commit=$cmit]
950
951                 if {$radius > 0} {
952                         set author_time {}
953                         set committer_time {}
954
955                         catch {set author_time $header($cmit,author-time)}
956                         catch {set committer_time $header($cmit,committer-time)}
957
958                         if {$committer_time eq {}} {
959                                 set committer_time $author_time
960                         }
961
962                         set after_time [_format_offset_date $this $committer_time [expr {-$radius}]]
963                         set before_time [_format_offset_date $this $committer_time $radius]
964
965                         lappend cmdline --after=$after_time --before=$before_time
966                 }
967
968                 lappend cmdline $cmit
969
970                 set base_rev "HEAD"
971                 if {$commit ne {}} {
972                         set base_rev $commit
973                 }
974
975                 if {$base_rev ne $cmit} {
976                         lappend cmdline $base_rev
977                 }
978
979                 do_gitk $cmdline
980         }
981 }
982
983 method _blameparent {} {
984         set dat [_get_click_amov_info $this]
985         if {$dat ne {}} {
986                 set cmit [lindex $dat 0]
987                 set new_path [lindex $dat 1]
988
989                 if {[catch {set cparent [git rev-parse --verify "$cmit^"]}]} {
990                         error_popup [strcat [mc "Cannot find parent commit:"] "\n\n$err"]
991                         return;
992                 }
993
994                 _kill $this
995
996                 # Generate a diff between the commit and its parent,
997                 # and use the hunks to update the line number.
998                 # Request zero context to simplify calculations.
999                 if {[catch {set fd [eval git_read diff-tree \
1000                                 --unified=0 $cparent $cmit $new_path]} err]} {
1001                         $status stop [mc "Unable to display parent"]
1002                         error_popup [strcat [mc "Error loading diff:"] "\n\n$err"]
1003                         return
1004                 }
1005
1006                 set r_orig_line [lindex $dat 2]
1007
1008                 fconfigure $fd \
1009                         -blocking 0 \
1010                         -encoding binary \
1011                         -translation binary
1012                 fileevent $fd readable [cb _read_diff_load_commit \
1013                         $fd $cparent $new_path $r_orig_line]
1014                 set current_fd $fd
1015         }
1016 }
1017
1018 method _read_diff_load_commit {fd cparent new_path tline} {
1019         if {$fd ne $current_fd} {
1020                 catch {close $fd}
1021                 return
1022         }
1023
1024         while {[gets $fd line] >= 0} {
1025                 if {[regexp {^@@ -(\d+)(,(\d+))? \+(\d+)(,(\d+))? @@} $line line \
1026                         old_line osz old_size new_line nsz new_size]} {
1027
1028                         if {$osz eq {}} { set old_size 1 }
1029                         if {$nsz eq {}} { set new_size 1 }
1030
1031                         if {$new_line <= $tline} {
1032                                 if {[expr {$new_line + $new_size}] > $tline} {
1033                                         # Target line within the hunk
1034                                         set line_shift [expr {
1035                                                 ($new_size-$old_size)*($tline-$new_line)/$new_size
1036                                                 }]
1037                                 } else {
1038                                         set line_shift [expr {$new_size-$old_size}]
1039                                 }
1040
1041                                 set r_orig_line [expr {$r_orig_line - $line_shift}]
1042                         }
1043                 }
1044         }
1045
1046         if {[eof $fd]} {
1047                 close $fd;
1048                 set current_fd {}
1049
1050                 _load_new_commit $this  \
1051                         $cparent        \
1052                         $new_path       \
1053                         [list $r_orig_line]
1054         }
1055 } ifdeleted { catch {close $fd} }
1056
1057 method _show_tooltip {cur_w pos} {
1058         if {$tooltip_wm ne {}} {
1059                 _open_tooltip $this $cur_w
1060         } elseif {$tooltip_timer eq {}} {
1061                 set tooltip_timer [after 1000 [cb _open_tooltip $cur_w]]
1062         }
1063 }
1064
1065 method _open_tooltip {cur_w} {
1066         set tooltip_timer {}
1067         set pos_x [winfo pointerx $cur_w]
1068         set pos_y [winfo pointery $cur_w]
1069         if {[winfo containing $pos_x $pos_y] ne $cur_w} {
1070                 _hide_tooltip $this
1071                 return
1072         }
1073
1074         if {$tooltip_wm ne "$cur_w.tooltip"} {
1075                 _hide_tooltip $this
1076
1077                 set tooltip_wm [toplevel $cur_w.tooltip -borderwidth 1]
1078                 wm overrideredirect $tooltip_wm 1
1079                 wm transient $tooltip_wm [winfo toplevel $cur_w]
1080                 set tooltip_t $tooltip_wm.label
1081                 text $tooltip_t \
1082                         -takefocus 0 \
1083                         -highlightthickness 0 \
1084                         -relief flat \
1085                         -borderwidth 0 \
1086                         -wrap none \
1087                         -background lightyellow \
1088                         -foreground black
1089                 $tooltip_t tag conf section_header -font font_uibold
1090                 pack $tooltip_t
1091         } else {
1092                 $tooltip_t conf -state normal
1093                 $tooltip_t delete 0.0 end
1094         }
1095
1096         set pos @[join [list \
1097                 [expr {$pos_x - [winfo rootx $cur_w]}] \
1098                 [expr {$pos_y - [winfo rooty $cur_w]}]] ,]
1099         set lno [lindex [split [$cur_w index $pos] .] 0]
1100         if {$cur_w eq $w_amov} {
1101                 set dat [lindex $amov_data $lno]
1102                 set org {}
1103         } else {
1104                 set dat [lindex $asim_data $lno]
1105                 set org [lindex $amov_data $lno]
1106         }
1107
1108         if {$dat eq {}} {
1109                 _hide_tooltip $this
1110                 return
1111         }
1112
1113         set cmit [lindex $dat 0]
1114         set tooltip_commit [list $cmit]
1115
1116         set author_name {}
1117         set summary     {}
1118         set author_time {}
1119         catch {set author_name $header($cmit,author)}
1120         catch {set summary     $header($cmit,summary)}
1121         catch {set author_time [format_date $header($cmit,author-time)]}
1122
1123         $tooltip_t insert end "commit $cmit\n"
1124         $tooltip_t insert end "$author_name  $author_time\n"
1125         $tooltip_t insert end "$summary"
1126
1127         if {$org ne {} && [lindex $org 0] ne $cmit} {
1128                 set save [$tooltip_t get 0.0 end]
1129                 $tooltip_t delete 0.0 end
1130
1131                 set cmit [lindex $org 0]
1132                 set file [lindex $org 1]
1133                 lappend tooltip_commit $cmit
1134
1135                 set author_name {}
1136                 set summary     {}
1137                 set author_time {}
1138                 catch {set author_name $header($cmit,author)}
1139                 catch {set summary     $header($cmit,summary)}
1140                 catch {set author_time [format_date $header($cmit,author-time)]}
1141
1142                 $tooltip_t insert end [strcat [mc "Originally By:"] "\n"] section_header
1143                 $tooltip_t insert end "commit $cmit\n"
1144                 $tooltip_t insert end "$author_name  $author_time\n"
1145                 $tooltip_t insert end "$summary\n"
1146
1147                 if {$file ne $path} {
1148                         $tooltip_t insert end [strcat [mc "In File:"] " "] section_header
1149                         $tooltip_t insert end "$file\n"
1150                 }
1151
1152                 $tooltip_t insert end "\n"
1153                 $tooltip_t insert end [strcat [mc "Copied Or Moved Here By:"] "\n"] section_header
1154                 $tooltip_t insert end $save
1155         }
1156
1157         $tooltip_t conf -state disabled
1158         _position_tooltip $this
1159 }
1160
1161 method _position_tooltip {} {
1162         set max_h [lindex [split [$tooltip_t index end] .] 0]
1163         set max_w 0
1164         for {set i 1} {$i <= $max_h} {incr i} {
1165                 set c [lindex [split [$tooltip_t index "$i.0 lineend"] .] 1]
1166                 if {$c > $max_w} {set max_w $c}
1167         }
1168         $tooltip_t conf -width $max_w -height $max_h
1169
1170         set req_w [winfo reqwidth  $tooltip_t]
1171         set req_h [winfo reqheight $tooltip_t]
1172         set pos_x [expr {[winfo pointerx .] +  5}]
1173         set pos_y [expr {[winfo pointery .] + 10}]
1174
1175         set g "${req_w}x${req_h}"
1176         if {$pos_x >= 0} {append g +}
1177         append g $pos_x
1178         if {$pos_y >= 0} {append g +}
1179         append g $pos_y
1180
1181         wm geometry $tooltip_wm $g
1182         raise $tooltip_wm
1183 }
1184
1185 method _hide_tooltip {} {
1186         if {$tooltip_wm ne {}} {
1187                 destroy $tooltip_wm
1188                 set tooltip_wm {}
1189                 set tooltip_commit {}
1190         }
1191         if {$tooltip_timer ne {}} {
1192                 after cancel $tooltip_timer
1193                 set tooltip_timer {}
1194         }
1195 }
1196
1197 method _resize {new_height} {
1198         set diff [expr {$new_height - $old_height}]
1199         if {$diff == 0} return
1200
1201         set my [expr {[winfo height $w.file_pane] - 25}]
1202         set o [$w.file_pane sash coord 0]
1203         set ox [lindex $o 0]
1204         set oy [expr {[lindex $o 1] + $diff}]
1205         if {$oy < 0}   {set oy 0}
1206         if {$oy > $my} {set oy $my}
1207         $w.file_pane sash place 0 $ox $oy
1208
1209         set old_height $new_height
1210 }
1211
1212 }