[PATCH 09/13] gitk: shorten labels displayed for modern remote-tracking refs

[Michael Haggerty]

If a reference has the form

    refs/remotes/origin/foo

, then use the label

    origin/foo
    ^^^^^^^

, where the indicated part is displayed in `$remotebgcolor`. The old
code would have displayed such a reference as

    remotes/origin/foo
    ^^^^^^^^^^^^^^^

, which wastes horizontal space displaying `remote/` for every remote
reference. However, if a remote-tracking reference has only two slashes,
like

    refs/remotes/baz

, render the label the same as before, namely

    remotes/baz
    ^^^^^^^^

Signed-off-by: Michael Haggerty <mhag...@alum.mit.edu>
---
 gitk | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/gitk b/gitk
index c146a15..d22ce5f 100755
--- a/gitk
+++ b/gitk
@@ -6558,7 +6558,9 @@ proc remotereftext {head textName prefixName} {
     upvar $textName text
     upvar $prefixName prefix
 
-    if {[regexp {^((remotes/([^/]+/|)).*)} $head match text prefix]} {
+    if {[regexp {^remotes/(([^/]+/).*)} $head match text prefix]} {
+       return 1
+    } elseif {[regexp {^((remotes/).*)} $head match text prefix]} {
        return 1
     } else {
        set text $head
@@ -6613,7 +6615,8 @@ proc drawtags {id x xt y1} {
                lappend wvals [font measure mainfontbold $head]
            } else {
                lappend types head
-               lappend wvals [font measure mainfont $head]
+               remotereftext $head text remoteprefix
+               lappend wvals [font measure mainfont $text]
            }
            lappend marks $head
        }
@@ -6644,6 +6647,7 @@ proc drawtags {id x xt y1} {
        set xl [expr {$x + $delta}]
        set xr [expr {$x + $delta + $wid + $lthickness}]
        set font mainfont
+       set text $tag
        if {$type eq "tag" || $type eq "tags"} {
            # draw a tag
            set t [$canv create polygon $x [expr {$yt + $delta}] $xl $yt \
@@ -6679,7 +6683,7 @@ proc drawtags {id x xt y1} {
                        -width 0 -fill $remotebgcolor -tags tag.$id
            }
        }
-       set t [$canv create text $xl $y1 -anchor w -text $tag -fill 
$headfgcolor \
+       set t [$canv create text $xl $y1 -anchor w -text $text -fill 
$headfgcolor \
                   -font $font -tags [list tag.$id text]]
        if {$type eq "tag" || $type eq "tags"} {
            $canv bind $t <1> $tagclick
-- 
2.9.3