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-rwxr-xr-xgitk37
1 files changed, 21 insertions, 16 deletions
diff --git a/gitk b/gitk
index e8e0c731f..fa1e83c49 100755
--- a/gitk
+++ b/gitk
@@ -1113,17 +1113,6 @@ proc optimize_rows {row col endrow} {
set idlist [lindex $rowidlist $row]
set offs [lindex $rowoffsets $row]
set haspad 0
- set downarrowcols {}
- if {[info exists linesegends($row)]} {
- set downarrowcols $linesegends($row)
- if {$col > 0} {
- while {$downarrowcols ne {}} {
- set i [lsearch -exact $idlist [lindex $downarrowcols 0]]
- if {$i < 0 || $i >= $col} break
- set downarrowcols [lrange $downarrowcols 1 end]
- }
- }
- }
for {} {$col < [llength $offs]} {incr col} {
if {[lindex $idlist $col] eq {}} {
set haspad 1
@@ -1141,10 +1130,6 @@ proc optimize_rows {row col endrow} {
$y0 > [lindex $idrowranges($id) 0]} {
set isarrow 1
}
- } elseif {$downarrowcols ne {} &&
- [lindex $idlist $col] eq [lindex $downarrowcols 0]} {
- set downarrowcols [lrange $downarrowcols 1 end]
- set isarrow 1
}
if {$z < -1 || ($z < 0 && $isarrow)} {
set npad [expr {-1 - $z + $isarrow}]
@@ -1258,7 +1243,7 @@ proc linewidth {id} {
proc drawlineseg {id i} {
global rowoffsets rowidlist idrowranges
global displayorder
- global canv colormap
+ global canv colormap linespc
set startrow [lindex $idrowranges($id) [expr {2 * $i}]]
set row [lindex $idrowranges($id) [expr {2 * $i + 1}]]
@@ -1306,6 +1291,26 @@ proc drawlineseg {id i} {
}
if {[llength $coords] < 4} return
set last [expr {[llength $idrowranges($id)] / 2 - 1}]
+ if {$i < $last} {
+ # This line has an arrow at the lower end: check if the arrow is
+ # on a diagonal segment, and if so, work around the Tk 8.4
+ # refusal to draw arrows on diagonal lines.
+ set x0 [lindex $coords 0]
+ set x1 [lindex $coords 2]
+ if {$x0 != $x1} {
+ set y0 [lindex $coords 1]
+ set y1 [lindex $coords 3]
+ if {$y0 - $y1 <= 2 * $linespc && $x1 == [lindex $coords 4]} {
+ # we have a nearby vertical segment, just trim off the diag bit
+ set coords [lrange $coords 2 end]
+ } else {
+ set slope [expr {($x0 - $x1) / ($y0 - $y1)}]
+ set xi [expr {$x0 - $slope * $linespc / 2}]
+ set yi [expr {$y0 - $linespc / 2}]
+ set coords [lreplace $coords 0 1 $xi $y0 $xi $yi]
+ }
+ }
+ }
set arrow [expr {2 * ($i > 0) + ($i < $last)}]
set arrow [lindex {none first last both} $arrow]
set t [$canv create line $coords -width [linewidth $id] \