+ if {$r0 <= $row && $row <= $r1} {
+ if {![highlighted $row]} {
+ bolden $row $font
+ }
+ set vhighlights($row) 1
+ }
+ }
+ }
+ set vhl_done $max
+}
+
+proc askvhighlight {row id} {
+ global hlview vhighlights commitrow iddrawn mainfont
+
+ if {[info exists commitrow($hlview,$id)]} {
+ if {[info exists iddrawn($id)] && ![ishighlighted $row]} {
+ bolden $row [concat $mainfont bold]
+ }
+ set vhighlights($row) 1
+ } else {
+ set vhighlights($row) 0
+ }
+}
+
+proc hfiles_change {name ix op} {
+ global highlight_files filehighlight fhighlights fh_serial
+ global mainfont highlight_paths
+
+ if {[info exists filehighlight]} {
+ # delete previous highlights
+ catch {close $filehighlight}
+ unset filehighlight
+ catch {unset fhighlights}
+ unbolden
+ unhighlight_filelist
+ }
+ set highlight_paths {}
+ after cancel do_file_hl $fh_serial
+ incr fh_serial
+ if {$highlight_files ne {}} {
+ after 300 do_file_hl $fh_serial
+ }
+}
+
+proc makepatterns {l} {
+ set ret {}
+ foreach e $l {
+ set ee [string map {"*" "\\*" "?" "\\?" "\[" "\\\[" "\\" "\\\\"} $e]
+ if {[string index $ee end] eq "/"} {
+ lappend ret "$ee*"
+ } else {
+ lappend ret $ee
+ lappend ret "$ee/*"
+ }
+ }
+ return $ret
+}
+
+proc do_file_hl {serial} {
+ global highlight_files filehighlight highlight_paths gdttype fhl_list
+
+ if {$gdttype eq "touching paths:"} {
+ if {[catch {set paths [shellsplit $highlight_files]}]} return
+ set highlight_paths [makepatterns $paths]
+ highlight_filelist
+ set gdtargs [concat -- $paths]
+ } else {
+ set gdtargs [list "-S$highlight_files"]
+ }
+ set cmd [concat | git-diff-tree -r -s --stdin $gdtargs]
+ set filehighlight [open $cmd r+]
+ fconfigure $filehighlight -blocking 0
+ fileevent $filehighlight readable readfhighlight
+ set fhl_list {}
+ drawvisible
+ flushhighlights
+}
+
+proc flushhighlights {} {
+ global filehighlight fhl_list
+
+ if {[info exists filehighlight]} {
+ lappend fhl_list {}
+ puts $filehighlight ""
+ flush $filehighlight
+ }
+}
+
+proc askfilehighlight {row id} {
+ global filehighlight fhighlights fhl_list
+
+ lappend fhl_list $id
+ set fhighlights($row) -1
+ puts $filehighlight $id
+}
+
+proc readfhighlight {} {
+ global filehighlight fhighlights commitrow curview mainfont iddrawn
+ global fhl_list
+
+ while {[gets $filehighlight line] >= 0} {
+ set line [string trim $line]
+ set i [lsearch -exact $fhl_list $line]
+ if {$i < 0} continue
+ for {set j 0} {$j < $i} {incr j} {
+ set id [lindex $fhl_list $j]
+ if {[info exists commitrow($curview,$id)]} {
+ set fhighlights($commitrow($curview,$id)) 0
+ }
+ }
+ set fhl_list [lrange $fhl_list [expr {$i+1}] end]
+ if {$line eq {}} continue
+ if {![info exists commitrow($curview,$line)]} continue
+ set row $commitrow($curview,$line)
+ if {[info exists iddrawn($line)] && ![ishighlighted $row]} {
+ bolden $row [concat $mainfont bold]
+ }
+ set fhighlights($row) 1
+ }
+ if {[eof $filehighlight]} {
+ # strange...
+ puts "oops, git-diff-tree died"
+ catch {close $filehighlight}
+ unset filehighlight
+ }
+ next_hlcont
+}
+
+proc find_change {name ix op} {
+ global nhighlights mainfont boldnamerows
+ global findstring findpattern findtype
+
+ # delete previous highlights, if any
+ foreach row $boldnamerows {
+ bolden_name $row $mainfont
+ }
+ set boldnamerows {}
+ catch {unset nhighlights}
+ unbolden
+ if {$findtype ne "Regexp"} {
+ set e [string map {"*" "\\*" "?" "\\?" "\[" "\\\[" "\\" "\\\\"} \
+ $findstring]
+ set findpattern "*$e*"
+ }
+ drawvisible
+}
+
+proc askfindhighlight {row id} {
+ global nhighlights commitinfo iddrawn mainfont
+ global findstring findtype findloc findpattern
+
+ if {![info exists commitinfo($id)]} {
+ getcommit $id
+ }
+ set info $commitinfo($id)
+ set isbold 0
+ set fldtypes {Headline Author Date Committer CDate Comments}
+ foreach f $info ty $fldtypes {
+ if {$findloc ne "All fields" && $findloc ne $ty} {
+ continue
+ }
+ if {$findtype eq "Regexp"} {
+ set doesmatch [regexp $findstring $f]
+ } elseif {$findtype eq "IgnCase"} {
+ set doesmatch [string match -nocase $findpattern $f]
+ } else {
+ set doesmatch [string match $findpattern $f]
+ }
+ if {$doesmatch} {
+ if {$ty eq "Author"} {
+ set isbold 2
+ } else {
+ set isbold 1
+ }
+ }
+ }
+ if {[info exists iddrawn($id)]} {
+ if {$isbold && ![ishighlighted $row]} {
+ bolden $row [concat $mainfont bold]
+ }
+ if {$isbold >= 2} {
+ bolden_name $row [concat $mainfont bold]
+ }
+ }
+ set nhighlights($row) $isbold
+}
+
+proc vrel_change {name ix op} {
+ global highlight_related
+
+ rhighlight_none
+ if {$highlight_related ne "None"} {
+ after idle drawvisible
+ }
+}
+
+# prepare for testing whether commits are descendents or ancestors of a
+proc rhighlight_sel {a} {
+ global descendent desc_todo ancestor anc_todo
+ global highlight_related rhighlights
+
+ catch {unset descendent}
+ set desc_todo [list $a]
+ catch {unset ancestor}
+ set anc_todo [list $a]
+ if {$highlight_related ne "None"} {
+ rhighlight_none
+ after idle drawvisible
+ }
+}
+
+proc rhighlight_none {} {
+ global rhighlights
+
+ catch {unset rhighlights}
+ unbolden
+}
+
+proc is_descendent {a} {
+ global curview children commitrow descendent desc_todo
+
+ set v $curview
+ set la $commitrow($v,$a)
+ set todo $desc_todo
+ set leftover {}
+ set done 0
+ for {set i 0} {$i < [llength $todo]} {incr i} {
+ set do [lindex $todo $i]
+ if {$commitrow($v,$do) < $la} {
+ lappend leftover $do
+ continue
+ }
+ foreach nk $children($v,$do) {
+ if {![info exists descendent($nk)]} {
+ set descendent($nk) 1
+ lappend todo $nk
+ if {$nk eq $a} {
+ set done 1