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# PopMenu.tcl --
#
# This file implements the TixPopupMenu widget
#
# Copyright (c) 1996, Expert Interface Technologies
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
tixWidgetClass tixPopupMenu {
-classname TixPopupMenu
-superclass tixShell
-method {
bind post unbind
}
-flag {
-buttons -installcolormap -postcmd -spring -state -title
}
-configspec {
{-buttons buttons Buttons {{3 {Any}}}}
{-installcolormap installColormap InstallColormap false}
{-postcmd postCmd PostCmd ""}
{-spring spring Spring 1 tixVerifyBoolean}
{-state state State normal}
{-cursor corsor Cursur arrow}
}
-static {
-buttons
}
-default {
{*Menu.tearOff 0}
}
}
proc tixPopupMenu:InitWidgetRec {w} {
upvar #0 $w data
tixChainMethod $w InitWidgetRec
set data(g:clients) ""
}
proc tixPopupMenu:ConstructWidget {w} {
upvar #0 $w data
tixChainMethod $w ConstructWidget
wm overrideredirect $w 1
wm withdraw $w
set data(w:menubutton) [menubutton $w.menubutton -text $data(-title) \
-menu $w.menubutton.menu -anchor w]
set data(w:menu) [menu $w.menubutton.menu]
pack $data(w:menubutton) -expand yes -fill both
}
proc tixPopupMenu:SetBindings {w} {
upvar #0 $w data
tixChainMethod $w SetBindings
foreach elm $data(-buttons) {
set btn [lindex $elm 0]
foreach mod [lindex $elm 1] {
tixBind TixPopupMenu:MB:$w <$mod-ButtonPress-$btn> \
"tixPopupMenu:Unpost $w"
tixBind TixPopupMenu:$w <$mod-ButtonPress-$btn> \
"tixPopupMenu:post $w %W %x %y"
}
tixBind TixPopupMenu:MB:$w <ButtonRelease-$btn> \
"tixPopupMenu:BtnRelease $w %X %Y"
tixBind TixPopupMenu:M:$w <Unmap> \
"tixPopupMenu:Unmap $w"
tixBind TixPopupMenu:$w <ButtonRelease-$btn> \
"tixPopupMenu:BtnRelease $w %X %Y"
tixAddBindTag $data(w:menubutton) TixPopupMenu:MB:$w
tixAddBindTag $data(w:menu) TixPopupMenu:M:$w
}
}
#----------------------------------------------------------------------
# PrivateMethods:
#----------------------------------------------------------------------
proc tixPopupMenu:Unpost {w} {
upvar #0 $w data
catch {
tkMenuUnpost ""
}
# tkMbButtonUp $data(w:menubutton)
}
proc tixPopupMenu:BtnRelease {w rootX rootY} {
upvar #0 $w data
set cW [winfo containing $rootX $rootY]
if {$data(-spring)} {
tixPopupMenu:Unpost $w
}
}
proc tixPopupMenu:Unmap {w} {
upvar #0 $w data
wm withdraw $w
}
proc tixPopupMenu:Destructor {w} {
upvar #0 $w data
foreach client $data(g:clients) {
if [winfo exists $client] {
tixDeleteBindTag $client TixPopupMenu:$w
}
}
# delete the extra bindings
#
foreach tag [list TixPopupMenu:MB:$w TixPopupMenu:M:$w] {
foreach e [bind $tag] {
bind $tag $e ""
}
}
tixChainMethod $w Destructor
}
proc tixPopupMenu:config-title {w value} {
upvar #0 $w data
$data(w:menubutton) config -text $value
}
#----------------------------------------------------------------------
# PublicMethods:
#----------------------------------------------------------------------
proc tixPopupMenu:bind {w args} {
upvar #0 $w data
foreach client $args {
if {[lsearch $data(g:clients) $client] == -1} {
lappend data(g:clients) $client
tixAppendBindTag $client TixPopupMenu:$w
}
}
}
proc tixPopupMenu:unbind {w args} {
upvar #0 $w data
foreach client $args {
if [winfo exists $client] {
set index [lsearch $data(g:clients) $client]
if {$index != -1} {
tixDeleteBindTag $client TixPopupMenu:$w
set data(g:clients) [lreplace $data(g:clients) $index $index]
}
}
}
}
proc tixPopupMenu:post {w client x y} {
upvar #0 $w data
global tkPriv
if {$data(-state) == "disabled"} {
return
}
set rootx [expr $x + [winfo rootx $client]]
set rooty [expr $y + [winfo rooty $client]]
if {$data(-postcmd) != ""} {
set ret [tixEvalCmdBinding $w $data(-postcmd) "" $rootx $rooty]
if ![tixGetBoolean $ret] {
return
}
}
if [tixGetBoolean -nocomplain $data(-installcolormap)] {
wm colormapwindows . "$w"
}
set menuWidth [winfo reqwidth $data(w:menu)]
set width [winfo reqwidth $w]
set height [winfo reqheight $w]
if {$width < $menuWidth} {
set width $menuWidth
}
set wx $rootx
set wy $rooty
# trick: the following lines allow the popup menu
# acquire a stable width and height when it is finally
# put on the visible screen. Advoid flashing
#
wm geometry $w +10000+10000
wm deiconify $w
raise $w
update
wm geometry $w $width\x$height+$wx+$wy
update
tkMbEnter $data(w:menubutton)
tkMbPost $tkPriv(inMenubutton) $rootx $rooty
}
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