More fixes for geometry restoration

Make up/down/pgup/pgdn work again
Return in find string entry does find
Scale circles and lines with font size
Fix scrolling to make entire selected line visible
Use white circle for commits not listed but put in to terminate lines
Fix diff parsing for created and deleted files

gitk

@@ -7,7 +7,7 @@ exec wish "$0" -- "${1+$@}"
 # and distributed under the terms of the GNU General Public Licence,
 # either version 2, or (at your option) any later version.
 
-# CVS $Revision: 1.14 $
+# CVS $Revision: 1.15 $
 
 proc getcommits {rargs} {
     global commits commfd phase canv mainfont
@@ -160,6 +160,9 @@ proc makewindow {} {
     panedwindow .ctop -orient vertical
     if {[info exists geometry(width)]} {
 	.ctop conf -width $geometry(width) -height $geometry(height)
+	set texth [expr {$geometry(height) - $geometry(canvh) - 56}]
+	set geometry(ctexth) [expr {($texth - 8) /
+				    [font metrics $textfont -linespace]}]
     }
     frame .ctop.top
     frame .ctop.top.bar
@@ -195,8 +198,6 @@ proc makewindow {} {
     set findstring {}
     set fstring .ctop.top.bar.findstring
     entry $fstring -width 30 -font $textfont -textvariable findstring
-    # stop the toplevel events from firing on key presses
-    bind $fstring <Key> "[bind Entry <Key>]; break"
     pack $fstring -side left -expand 1 -fill x
     set findtype Exact
     tk_optionMenu .ctop.top.bar.findtype findtype Exact IgnCase Regexp
@@ -226,7 +227,7 @@ proc makewindow {} {
 
     frame .ctop.cdet.right
     set cflist .ctop.cdet.right.cfiles
-    listbox $cflist -width $geometry(cflistw) -bg white -selectmode extended \
+    listbox $cflist -bg white -selectmode extended -width $geometry(cflistw) \
 	-yscrollcommand ".ctop.cdet.right.sb set"
     scrollbar .ctop.cdet.right.sb -command "$cflist yview"
     pack .ctop.cdet.right.sb -side right -fill y
@@ -242,10 +243,10 @@ proc makewindow {} {
     bindall <ButtonRelease-5> "allcanvs yview scroll 5 u"
     bindall <2> "allcanvs scan mark 0 %y"
     bindall <B2-Motion> "allcanvs scan dragto 0 %y"
-    bindall <Key-Up> "selnextline -1"
+    bind . <Key-Up> "selnextline -1"
-    bindall <Key-Down> "selnextline 1"
+    bind . <Key-Down> "selnextline 1"
-    bindall <Key-Prior> "allcanvs yview scroll -1 p"
+    bind . <Key-Prior> "allcanvs yview scroll -1 p"
-    bindall <Key-Next> "allcanvs yview scroll 1 p"
+    bind . <Key-Next> "allcanvs yview scroll 1 p"
     bindkey <Key-Delete> "$ctext yview scroll -1 p"
     bindkey <Key-BackSpace> "$ctext yview scroll -1 p"
     bindkey <Key-space> "$ctext yview scroll 1 p"
@@ -267,6 +268,7 @@ proc makewindow {} {
     bind $cflist <<ListboxSelect>> listboxsel
     bind . <Destroy> {savestuff %W}
     bind . <Button-1> "click %W"
+    bind $fstring <Key-Return> dofind
 }
 
 # when we make a key binding for the toplevel, make sure
@@ -306,13 +308,9 @@ proc savestuff {w} {
 	puts $f "set geometry(canv2) [expr [winfo width $canv2]-2]"
 	puts $f "set geometry(canv3) [expr [winfo width $canv3]-2]"
 	puts $f "set geometry(canvh) [expr [winfo height $canv]-2]"
-	puts $f "set geometry(csash) {[.ctop sash coord 0]}"
 	set wid [expr {([winfo width $ctext] - 8) \
 			   / [font measure $textfont "0"]}]
-	set ht [expr {([winfo height $ctext] - 8) \
-			  / [font metrics $textfont -linespace]}]
 	puts $f "set geometry(ctextw) $wid"
-	puts $f "set geometry(ctexth) $ht"
 	set wid [expr {([winfo width $cflist] - 11) \
 			   / [font measure [$cflist cget -font] "0"]}]
 	puts $f "set geometry(cflistw) $wid"
@@ -403,7 +401,7 @@ Copyright
 
 Use and redistribute under the terms of the GNU General Public License
 
-(CVS $Revision: 1.14 $)} \
+(CVS $Revision: 1.15 $)} \
 	    -justify center -aspect 400
     pack $w.m -side top -fill x -padx 20 -pady 20
     button $w.ok -text Close -command "destroy $w"
@@ -520,9 +518,11 @@ proc drawgraph {} {
     set lineno -1
     set numcommits 0
     set phase drawgraph
+    set lthickness [expr {($linespc / 9) + 1}]
     while 1 {
 	set canvy $y2
-	allcanvs conf -scrollregion [list 0 0 0 $canvy]
+	allcanvs conf -scrollregion \
+	    [list 0 0 0 [expr $canvy + 0.5 * $linespc + 2]]
 	update
 	if {$stopped} break
 	incr numcommits
@@ -551,13 +551,15 @@ proc drawgraph {} {
 	set y2 [expr $canvy + $linespc]
 	if {[info exists linestarty($level)] && $linestarty($level) < $canvy} {
 	    set t [$canv create line $x $linestarty($level) $x $canvy \
-		       -width 2 -fill $colormap($id)]
+		       -width $lthickness -fill $colormap($id)]
 	    $canv lower $t
 	}
 	set linestarty($level) $canvy
-	set t [$canv create oval [expr $x - 4] [expr $canvy - 4] \
+	set ofill [expr {[info exists parents($id)]? "blue": "white"}]
-		   [expr $x + 3] [expr $canvy + 3] \
+	set orad [expr {$linespc / 3}]
-		   -fill blue -outline black -width 1]
+	set t [$canv create oval [expr $x - $orad] [expr $canvy - $orad] \
+		   [expr $x + $orad - 1] [expr $canvy + $orad - 1] \
+		   -fill $ofill -outline black -width 1]
 	$canv raise $t
 	set xt [expr $canvx0 + $nlines * $linespc]
 	set headline [lindex $commitinfo($id) 0]
@@ -694,7 +696,8 @@ proc drawgraph {} {
 		lappend coords [expr $xj - $linespc] $canvy
 	    }
 	    lappend coords $xj $y2
-	    set t [$canv create line $coords -width 2 -fill $colormap($dst)]
+	    set t [$canv create line $coords -width $lthickness \
+		       -fill $colormap($dst)]
 	    $canv lower $t
 	    if {![info exists linestarty($j)]} {
 		set linestarty($j) $y2
@@ -882,9 +885,9 @@ proc selcanvline {x y} {
 proc selectline {l} {
     global canv canv2 canv3 ctext commitinfo selectedline
     global lineid linehtag linentag linedtag
-    global canvy canvy0 linespc nparents treepending
+    global canvy0 linespc nparents treepending
     global cflist treediffs currentid sha1entry
-    global commentend
+    global commentend seenfile numcommits
     if {![info exists lineid($l)] || ![info exists linehtag($l)]} return
     $canv delete secsel
     set t [eval $canv create rect [$canv bbox $linehtag($l)] -outline {{}} \
@@ -899,14 +902,24 @@ proc selectline {l} {
 	       -tags secsel -fill [$canv3 cget -selectbackground]]
     $canv3 lower $t
     set y [expr {$canvy0 + $l * $linespc}]
-    set ytop [expr {($y - $linespc / 2.0) / $canvy}]
+    set ymax [lindex [$canv cget -scrollregion] 3]
-    set ybot [expr {($y + $linespc / 2.0) / $canvy}]
+    set ytop [expr {($y - $linespc / 2.0 - 1) / $ymax}]
+    set ybot [expr {($y + $linespc / 2.0 + 1) / $ymax}]
     set wnow [$canv yview]
-    if {$ytop < [lindex $wnow 0]} {
+    set scrincr [expr {$linespc * 1.0 / $ymax}]
+    set wtop [lindex $wnow 0]
+    if {$ytop < $wtop} {
+	if {$ytop > $wtop - $scrincr} {
+	    set ytop [expr {$wtop - $scrincr}]
+	}
 	allcanvs yview moveto $ytop
     } elseif {$ybot > [lindex $wnow 1]} {
-	set wh [expr {[lindex $wnow 1] - [lindex $wnow 0]}]
+	set wh [expr {[lindex $wnow 1] - $wtop}]
-	allcanvs yview moveto [expr {$ybot - $wh}]
+	set ytop [expr {$ybot - $wh}]
+	if {$ytop < $wtop + $scrincr} {
+	    set ytop [expr {$wtop + $scrincr}]
+	}
+	allcanvs yview moveto $ytop
     }
     set selectedline $l
 
@@ -942,6 +955,7 @@ proc selectline {l} {
 	    addtocflist $id
 	}
     }
+    catch {unset seenfile}
 }
 
 proc selnextline {dir} {
@@ -1008,13 +1022,15 @@ proc getblobdiffs {id} {
 }
 
 proc getblobdiffline {bdf id} {
-    global currentid blobdifffd ctext curdifftag curtagstart
+    global currentid blobdifffd ctext curdifftag curtagstart seenfile
+    global diffnexthead
     set n [gets $bdf line]
     if {$n < 0} {
 	if {[eof $bdf]} {
 	    close $bdf
 	    if {$id == $currentid && $bdf == $blobdifffd($id)} {
 		$ctext tag add $curdifftag $curtagstart end
+		set seenfile($curdifftag) 1
 	    }
 	}
 	return
@@ -1023,11 +1039,16 @@ proc getblobdiffline {bdf id} {
 	return
     }
     $ctext conf -state normal
-    if {[regexp {^---[ \t]+([^/])+/(.*)} $line match s1 fname]} {
+    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"]
+	if {[info exists diffnexthead]} {
+	    set fname $diffnexthead
+	    unset diffnexthead
+	}
 	set curdifftag "f:$fname"
 	$ctext tag delete $curdifftag
 	set l [expr {(78 - [string length $fname]) / 2}]
@@ -1035,6 +1056,10 @@ proc getblobdiffline {bdf id} {
 	$ctext insert end "$pad $fname $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]} {
+	set diffnexthead $fn
+    } elseif {[string range $line 0 8] == "Deleted: "} {
+	set diffnexthead [string range $line 9 end]
     } elseif {[regexp {^@@ -([0-9]+),([0-9]+) \+([0-9]+),([0-9]+) @@(.*)} \
 		   $line match f1l f1c f2l f2c rest]} {
 	$ctext insert end "\t" hunksep
@@ -1054,6 +1079,7 @@ proc getblobdiffline {bdf id} {
 	    if {$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
 	    }
@@ -1064,14 +1090,16 @@ proc getblobdiffline {bdf id} {
 }
 
 proc listboxsel {} {
-    global ctext cflist currentid treediffs
+    global ctext cflist currentid treediffs seenfile
     if {![info exists currentid]} return
     set sel [$cflist curselection]
     if {$sel == {} || [lsearch -exact $sel 0] >= 0} {
 	# show everything
 	$ctext tag conf Comments -elide 0
 	foreach f $treediffs($currentid) {
-	    $ctext tag conf "f:$f" -elide 0
+	    if [info exists seenfile(f:$f)] {
+		$ctext tag conf "f:$f" -elide 0
+	    }
 	}
     } else {
 	# just show selected files
@@ -1079,7 +1107,9 @@ proc listboxsel {} {
 	set i 1
 	foreach f $treediffs($currentid) {
 	    set elide [expr {[lsearch -exact $sel $i] < 0}]
-	    $ctext tag conf "f:$f" -elide $elide
+	    if [info exists seenfile(f:$f)] {
+		$ctext tag conf "f:$f" -elide $elide
+	    }
 	    incr i
 	}
     }
@@ -1133,17 +1163,18 @@ set boldnames 0
 set diffopts "-U 5 -p"
 
 set mainfont {Helvetica 9}
-set namefont $mainfont
 set textfont {Courier 9}
-if {$boldnames} {
-    lappend namefont bold
-}
 
 set colors {green red blue magenta darkgrey brown orange}
 set colorbycommitter false
 
 catch {source ~/.gitk}
 
+set namefont $mainfont
+if {$boldnames} {
+    lappend namefont bold
+}
+
 set revtreeargs {}
 foreach arg $argv {
     switch -regexp -- $arg {