+proc getblobdiffline {bdf ids} {
+ global diffids blobdifffd ctext curdifftag curtagstart seenfile
+ global diffnexthead diffnextnote diffindex difffilestart
+ global nextupdate
+
+ set n [gets $bdf line]
+ if {$n < 0} {
+ if {[eof $bdf]} {
+ close $bdf
+ if {$ids == $diffids && $bdf == $blobdifffd($ids)} {
+ $ctext tag add $curdifftag $curtagstart end
+ set seenfile($curdifftag) 1
+ }
+ }
+ return
+ }
+ if {$ids != $diffids || $bdf != $blobdifffd($ids)} {
+ return
+ }
+ $ctext conf -state normal
+ if {[regexp {^---[ \t]+([^/])*/(.*)} $line match s1 fname]} {
+ # start of a new file
+ $ctext insert end "\n"
+ $ctext tag add $curdifftag $curtagstart end
+ set seenfile($curdifftag) 1
+ set curtagstart [$ctext index "end - 1c"]
+ set header $fname
+ if {[info exists diffnexthead]} {
+ set fname $diffnexthead
+ set header "$diffnexthead ($diffnextnote)"
+ unset diffnexthead
+ }
+ set here [$ctext index "end - 1c"]
+ set difffilestart($diffindex) $here
+ incr diffindex
+ # start mark names at fmark.1 for first file
+ $ctext mark set fmark.$diffindex $here
+ $ctext mark gravity fmark.$diffindex left
+ set curdifftag "f:$fname"
+ $ctext tag delete $curdifftag
+ set l [expr {(78 - [string length $header]) / 2}]
+ set pad [string range "----------------------------------------" 1 $l]
+ $ctext insert end "$pad $header $pad\n" filesep
+ } elseif {[string range $line 0 2] == "+++"} {
+ # no need to do anything with this
+ } elseif {[regexp {^Created: (.*) \((mode: *[0-7]*)\)} $line match fn m]} {
+ set diffnexthead $fn
+ set diffnextnote "created, mode $m"
+ } elseif {[string range $line 0 8] == "Deleted: "} {
+ set diffnexthead [string range $line 9 end]
+ set diffnextnote "deleted"
+ } elseif {[regexp {^diff --git a/(.*) b/} $line match fn]} {
+ # save the filename in case the next thing is "new file mode ..."
+ set diffnexthead $fn
+ set diffnextnote "modified"
+ } elseif {[regexp {^new file mode ([0-7]+)} $line match m]} {
+ set diffnextnote "new file, mode $m"
+ } elseif {[string range $line 0 11] == "deleted file"} {
+ set diffnextnote "deleted"
+ } elseif {[regexp {^@@ -([0-9]+),([0-9]+) \+([0-9]+),([0-9]+) @@(.*)} \
+ $line match f1l f1c f2l f2c rest]} {
+ $ctext insert end "\t" hunksep
+ $ctext insert end " $f1l " d0 " $f2l " d1
+ $ctext insert end " $rest \n" hunksep
+ } else {
+ set x [string range $line 0 0]
+ if {$x == "-" || $x == "+"} {
+ set tag [expr {$x == "+"}]
+ set line [string range $line 1 end]
+ $ctext insert end "$line\n" d$tag
+ } elseif {$x == " "} {
+ set line [string range $line 1 end]
+ $ctext insert end "$line\n"
+ } elseif {$x == "\\"} {
+ # e.g. "\ No newline at end of file"
+ $ctext insert end "$line\n" filesep
+ } else {
+ # Something else we don't recognize
+ if {$curdifftag != "Comments"} {
+ $ctext insert end "\n"
+ $ctext tag add $curdifftag $curtagstart end
+ set seenfile($curdifftag) 1
+ set curtagstart [$ctext index "end - 1c"]
+ set curdifftag Comments
+ }
+ $ctext insert end "$line\n" filesep
+ }
+ }
+ $ctext conf -state disabled
+ if {[clock clicks -milliseconds] >= $nextupdate} {
+ incr nextupdate 100
+ fileevent $bdf readable {}
+ update
+ fileevent $bdf readable "getblobdiffline $bdf {$ids}"
+ }
+}
+
+proc nextfile {} {
+ global difffilestart ctext
+ set here [$ctext index @0,0]
+ for {set i 0} {[info exists difffilestart($i)]} {incr i} {
+ if {[$ctext compare $difffilestart($i) > $here]} {
+ $ctext yview $difffilestart($i)
+ break
+ }
+ }
+}
+
+proc listboxsel {} {
+ global ctext cflist currentid treediffs seenfile
+ if {![info exists currentid]} return
+ set sel [lsort [$cflist curselection]]
+ if {$sel eq {}} return
+ set first [lindex $sel 0]
+ catch {$ctext yview fmark.$first}
+}
+
+proc setcoords {} {
+ global linespc charspc canvx0 canvy0 mainfont
+ set linespc [font metrics $mainfont -linespace]
+ set charspc [font measure $mainfont "m"]
+ set canvy0 [expr 3 + 0.5 * $linespc]
+ set canvx0 [expr 3 + 0.5 * $linespc]
+}
+
+proc redisplay {} {
+ global selectedline stopped redisplaying phase
+ if {$stopped > 1} return
+ if {$phase == "getcommits"} return
+ set redisplaying 1
+ if {$phase == "drawgraph" || $phase == "incrdraw"} {
+ set stopped 1
+ } else {
+ drawgraph
+ }
+}
+
+proc incrfont {inc} {
+ global mainfont namefont textfont selectedline ctext canv phase
+ global stopped entries
+ unmarkmatches
+ set mainfont [lreplace $mainfont 1 1 [expr {[lindex $mainfont 1] + $inc}]]
+ set namefont [lreplace $namefont 1 1 [expr {[lindex $namefont 1] + $inc}]]
+ set textfont [lreplace $textfont 1 1 [expr {[lindex $textfont 1] + $inc}]]
+ setcoords
+ $ctext conf -font $textfont
+ $ctext tag conf filesep -font [concat $textfont bold]
+ foreach e $entries {
+ $e conf -font $mainfont
+ }
+ if {$phase == "getcommits"} {
+ $canv itemconf textitems -font $mainfont
+ }
+ redisplay
+}
+
+proc clearsha1 {} {
+ global sha1entry sha1string
+ if {[string length $sha1string] == 40} {
+ $sha1entry delete 0 end
+ }
+}
+
+proc sha1change {n1 n2 op} {
+ global sha1string currentid sha1but
+ if {$sha1string == {}
+ || ([info exists currentid] && $sha1string == $currentid)} {
+ set state disabled
+ } else {
+ set state normal
+ }
+ if {[$sha1but cget -state] == $state} return
+ if {$state == "normal"} {
+ $sha1but conf -state normal -relief raised -text "Goto: "
+ } else {
+ $sha1but conf -state disabled -relief flat -text "SHA1 ID: "
+ }
+}
+
+proc gotocommit {} {
+ global sha1string currentid idline tagids
+ if {$sha1string == {}
+ || ([info exists currentid] && $sha1string == $currentid)} return
+ if {[info exists tagids($sha1string)]} {
+ set id $tagids($sha1string)
+ } else {
+ set id [string tolower $sha1string]
+ }
+ if {[info exists idline($id)]} {
+ selectline $idline($id)
+ return
+ }
+ if {[regexp {^[0-9a-fA-F]{40}$} $sha1string]} {
+ set type "SHA1 id"
+ } else {
+ set type "Tag"
+ }
+ error_popup "$type $sha1string is not known"
+}
+
+proc lineenter {x y id} {
+ global hoverx hovery hoverid hovertimer
+ global commitinfo canv
+
+ if {![info exists commitinfo($id)]} return
+ set hoverx $x
+ set hovery $y
+ set hoverid $id
+ if {[info exists hovertimer]} {
+ after cancel $hovertimer
+ }
+ set hovertimer [after 500 linehover]
+ $canv delete hover
+}
+
+proc linemotion {x y id} {
+ global hoverx hovery hoverid hovertimer
+
+ if {[info exists hoverid] && $id == $hoverid} {
+ set hoverx $x
+ set hovery $y
+ if {[info exists hovertimer]} {
+ after cancel $hovertimer
+ }
+ set hovertimer [after 500 linehover]
+ }
+}
+
+proc lineleave {id} {
+ global hoverid hovertimer canv
+
+ if {[info exists hoverid] && $id == $hoverid} {
+ $canv delete hover
+ if {[info exists hovertimer]} {
+ after cancel $hovertimer
+ unset hovertimer
+ }
+ unset hoverid
+ }
+}
+
+proc linehover {} {
+ global hoverx hovery hoverid hovertimer
+ global canv linespc lthickness
+ global commitinfo mainfont
+
+ set text [lindex $commitinfo($hoverid) 0]
+ set ymax [lindex [$canv cget -scrollregion] 3]
+ if {$ymax == {}} return
+ set yfrac [lindex [$canv yview] 0]
+ set x [expr {$hoverx + 2 * $linespc}]
+ set y [expr {$hovery + $yfrac * $ymax - $linespc / 2}]
+ set x0 [expr {$x - 2 * $lthickness}]
+ set y0 [expr {$y - 2 * $lthickness}]
+ set x1 [expr {$x + [font measure $mainfont $text] + 2 * $lthickness}]
+ set y1 [expr {$y + $linespc + 2 * $lthickness}]
+ set t [$canv create rectangle $x0 $y0 $x1 $y1 \
+ -fill \#ffff80 -outline black -width 1 -tags hover]
+ $canv raise $t
+ set t [$canv create text $x $y -anchor nw -text $text -tags hover]
+ $canv raise $t
+}
+
+proc lineclick {x y id} {
+ global ctext commitinfo children cflist canv
+
+ unmarkmatches
+ $canv delete hover
+ # fill the details pane with info about this line
+ $ctext conf -state normal
+ $ctext delete 0.0 end
+ $ctext insert end "Parent:\n "
+ catch {destroy $ctext.$id}
+ button $ctext.$id -text "Go:" -command "selbyid $id" \
+ -padx 4 -pady 0
+ $ctext window create end -window $ctext.$id -align center
+ set info $commitinfo($id)
+ $ctext insert end "\t[lindex $info 0]\n"
+ $ctext insert end "\tAuthor:\t[lindex $info 1]\n"
+ $ctext insert end "\tDate:\t[lindex $info 2]\n"
+ $ctext insert end "\tID:\t$id\n"
+ if {[info exists children($id)]} {
+ $ctext insert end "\nChildren:"
+ foreach child $children($id) {
+ $ctext insert end "\n "
+ catch {destroy $ctext.$child}
+ button $ctext.$child -text "Go:" -command "selbyid $child" \
+ -padx 4 -pady 0
+ $ctext window create end -window $ctext.$child -align center
+ set info $commitinfo($child)
+ $ctext insert end "\t[lindex $info 0]"
+ }
+ }
+ $ctext conf -state disabled
+
+ $cflist delete 0 end
+}
+
+proc selbyid {id} {
+ global idline
+ if {[info exists idline($id)]} {
+ selectline $idline($id)
+ }
+}
+
+proc mstime {} {
+ global startmstime
+ if {![info exists startmstime]} {
+ set startmstime [clock clicks -milliseconds]
+ }
+ return [format "%.3f" [expr {([clock click -milliseconds] - $startmstime) / 1000.0}]]
+}
+
+proc rowmenu {x y id} {
+ global rowctxmenu idline selectedline rowmenuid
+
+ if {![info exists selectedline] || $idline($id) eq $selectedline} {
+ set state disabled
+ } else {
+ set state normal
+ }
+ $rowctxmenu entryconfigure 0 -state $state
+ $rowctxmenu entryconfigure 1 -state $state
+ $rowctxmenu entryconfigure 2 -state $state
+ set rowmenuid $id
+ tk_popup $rowctxmenu $x $y
+}
+
+proc diffvssel {dirn} {
+ global rowmenuid selectedline lineid
+ global ctext cflist
+ global diffids commitinfo
+