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-rw-r--r--library/panedwindow.tcl87
1 files changed, 65 insertions, 22 deletions
diff --git a/library/panedwindow.tcl b/library/panedwindow.tcl
index 600ce42..dbdcaa8 100644
--- a/library/panedwindow.tcl
+++ b/library/panedwindow.tcl
@@ -3,7 +3,7 @@
# This file defines the default bindings for Tk panedwindow widgets and
# provides procedures that help in implementing those bindings.
#
-# RCS: @(#) $Id: panedwindow.tcl,v 1.3 2002/02/22 21:07:35 hobbs Exp $
+# RCS: @(#) $Id: panedwindow.tcl,v 1.4 2002/02/23 01:36:45 hobbs Exp $
#
bind PanedWindow <Button-1> { ::tk::panedwindow::MarkSash %W %x %y 1 }
@@ -24,12 +24,15 @@ namespace eval ::tk::panedwindow {}
# ::tk::panedwindow::MarkSash --
#
-# ADD COMMENTS HERE
+# Handle marking the correct sash for possible dragging
#
# Arguments:
-# args comments
+# w the widget
+# x widget local x coord
+# y widget local y coord
+# proxy whether this should be a proxy sash
# Results:
-# Returns ...
+# None
#
proc ::tk::panedwindow::MarkSash {w x y proxy} {
set what [$w identify $x $y]
@@ -44,12 +47,15 @@ proc ::tk::panedwindow::MarkSash {w x y proxy} {
# ::tk::panedwindow::DragSash --
#
-# ADD COMMENTS HERE
+# Handle dragging of the correct sash
#
# Arguments:
-# args comments
+# w the widget
+# x widget local x coord
+# y widget local y coord
+# proxy whether this should be a proxy sash
# Results:
-# Returns ...
+# Moves sash
#
proc ::tk::panedwindow::DragSash {w x y proxy} {
if { [info exists ::tk::Priv(sash)] } {
@@ -64,10 +70,11 @@ proc ::tk::panedwindow::DragSash {w x y proxy} {
# ::tk::panedwindow::ReleaseSash --
#
-# ADD COMMENTS HERE
+# Handle releasing of the sash
#
# Arguments:
-# args comments
+# w the widget
+# proxy whether this should be a proxy sash
# Results:
# Returns ...
#
@@ -86,21 +93,24 @@ proc ::tk::panedwindow::ReleaseSash {w proxy} {
# ::tk::panedwindow::Motion --
#
-# ADD COMMENTS HERE
+# Handle motion on the widget. This is used to change the cursor
+# when the user moves over the sash area.
#
# Arguments:
-# args comments
+# w the widget
+# x widget local x coord
+# y widget local y coord
# Results:
-# Returns ...
+# May change the cursor. Sets up a timer to verify that we are still
+# over the widget.
#
proc ::tk::panedwindow::Motion {w x y} {
variable ::tk::Priv
set id [$w identify $x $y]
- if { [llength $id] == 2 } {
- if { !$::tk_strictMotif || [string equal [lindex $id 1] "handle"] } {
- if { ![info exists Priv(panecursor)] } {
- set Priv(panecursor) [$w cget -cursor]
- }
+ if {([llength $id] == 2) && \
+ (!$::tk_strictMotif || [string equal [lindex $id 1] "handle"])} {
+ if { ![info exists Priv(panecursor)] } {
+ set Priv(panecursor) [$w cget -cursor]
if { [string equal [$w cget -sashcursor] ""] } {
if { [string equal [$w cget -orient] "horizontal"] } {
$w configure -cursor sb_h_double_arrow
@@ -110,8 +120,13 @@ proc ::tk::panedwindow::Motion {w x y} {
} else {
$w configure -cursor [$w cget -sashcursor]
}
- return
+ if {[info exists Priv(pwAfterId)]} {
+ after cancel $Priv(pwAfterId)
+ }
+ set Priv(pwAfterId) [after 150 \
+ [list ::tk::panedwindow::Cursor $w]]
}
+ return
}
if { [info exists Priv(panecursor)] } {
$w configure -cursor $Priv(panecursor)
@@ -119,17 +134,45 @@ proc ::tk::panedwindow::Motion {w x y} {
}
}
+# ::tk::panedwindow::Cursor --
+#
+# Handles returning the normal cursor when we are no longer over the
+# sash area. This needs to be done this way, because the PanedWindow
+# won't see Leave events when the mouse moves from the sash to a
+# paned child, although the child does receive an Enter event.
+#
+# Arguments:
+# w the widget
+# Results:
+# May restore the default cursor, or schedule a timer to do it.
+#
+proc ::tk::panedwindow::Cursor {w} {
+ variable ::tk::Priv
+ if {[info exists Priv(panecursor)]} {
+ if {[winfo containing [winfo pointerx $w] [winfo pointery $w]] == $w} {
+ set Priv(pwAfterId) [after 150 [list ::tk::panedwindow::Cursor $w]]
+ } else {
+ $w configure -cursor $Priv(panecursor)
+ unset Priv(panecursor)
+ if {[info exists Priv(pwAfterId)]} {
+ after cancel $Priv(pwAfterId)
+ unset Priv(pwAfterId)
+ }
+ }
+ }
+}
+
# ::tk::panedwindow::Leave --
#
-# ADD COMMENTS HERE
+# Return to default cursor when leaving the pw widget.
#
# Arguments:
-# args comments
+# w the widget
# Results:
-# Returns ...
+# Restores the default cursor
#
proc ::tk::panedwindow::Leave {w} {
- if { [info exists ::tk::Priv(panecursor)] } {
+ if {[info exists ::tk::Priv(panecursor)]} {
$w configure -cursor $::tk::Priv(panecursor)
unset ::tk::Priv(panecursor)
}