From df5c976aa88acc56a303411ae481f9c1c89f4f69 Mon Sep 17 00:00:00 2001
From: treectrl <treectrl>
Date: Mon, 21 Jul 2008 18:36:41 +0000
Subject: The <Left> and <Right> arrow keys expand/collapse the current item if
 -orient=vertical and -wrap={}.

---
 library/treectrl.tcl | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/library/treectrl.tcl b/library/treectrl.tcl
index e2e2dee..c63dd6a 100644
--- a/library/treectrl.tcl
+++ b/library/treectrl.tcl
@@ -1,4 +1,4 @@
-# RCS: @(#) $Id: treectrl.tcl,v 1.39 2006/12/07 03:47:01 treectrl Exp $
+# RCS: @(#) $Id: treectrl.tcl,v 1.40 2008/07/21 18:36:41 treectrl Exp $
 
 bind TreeCtrl <Motion> {
     TreeCtrl::CursorCheck %W %x %y
@@ -53,7 +53,11 @@ bind TreeCtrl <Shift-KeyPress-Down> {
     TreeCtrl::Extend %W below
 }
 bind TreeCtrl <KeyPress-Left> {
-    TreeCtrl::SetActiveItem %W [TreeCtrl::LeftRight %W active -1]
+    if {[%W cget -orient] eq "vertical" && [%W cget -wrap] eq ""} {
+	%W item collapse [%W item id active]
+    } else {
+	TreeCtrl::SetActiveItem %W [TreeCtrl::LeftRight %W active -1]
+    }
 }
 bind TreeCtrl <Shift-KeyPress-Left> {
     TreeCtrl::Extend %W left
@@ -62,7 +66,11 @@ bind TreeCtrl <Control-KeyPress-Left> {
     %W xview scroll -1 pages
 }
 bind TreeCtrl <KeyPress-Right> {
-    TreeCtrl::SetActiveItem %W [TreeCtrl::LeftRight %W active 1]
+    if {[%W cget -orient] eq "vertical" && [%W cget -wrap] eq ""} {
+	%W item expand [%W item id active]
+    } else {
+	TreeCtrl::SetActiveItem %W [TreeCtrl::LeftRight %W active 1]
+    }
 }
 bind TreeCtrl <Shift-KeyPress-Right> {
     TreeCtrl::Extend %W right
-- 
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