[Tcl-bugs] [ tktoolkit-Bugs-932155 ] Sash misbehavior

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Bugs item #932155, was opened at 2004-04-09 03:32
Message generated for change (Comment added) made by dkf
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=112997&aid=932155&group_id=12997

Category: 21. [panedwindow]
Group: current: 8.4.6
Status: Open
Resolution: None
Priority: 5
Submitted By: Brian Griffin (bgriffin)
Assigned to: Jeffrey Hobbs (hobbs)
Summary: Sash misbehavior

Initial Comment:
If you have more than 1 sash (i.e more than 2 panes)
and a drag is performed on one sash (causing the proxy
to be placed) and then, on a different sash, a
<Button-1> event followed by a <ButtonRelease-1> event
with no intervening <B1-Motion> event, the sash will
jump to the last proxy location.

To fix this, the <Button-1> event must initialize the
proxy location so that if there is no drag, the button
release will cause no movement of the sash.  This can
be done by explicitly calling the DragSash function
from the MarkSash function:

proc ::tk::panedwindow::MarkSash {w x y proxy} {
    set what [$w identify $x $y]
    if { [llength $what] == 2 } {
	foreach {index which} $what break
	if { !$::tk_strictMotif || [string equal $which
"handle"] } {
	    if {!$proxy} { $w sash mark $index $x $y }
	    set ::tk::Priv(sash) $index
	    foreach {sx sy} [$w sash coord $index] break
	    set ::tk::Priv(dx) [expr {$sx-$x}]
	    set ::tk::Priv(dy) [expr {$sy-$y}]
	    # Do this to init the proxy location
	    DragSash $w $x $y $proxy
	}
    }
}

This bug exists on the top of trunk (8.5) as well.

-Brian

----------------------------------------------------------------------

>Comment By: Donal K. Fellows (dkf)
Date: 2004-04-13 10:02

Message:
Logged In: YES 
user_id=79902

Is there a way to get a non-interactive test for this
working before we fix it?

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=112997&aid=932155&group_id=12997