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# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
# $Id: VStack.tcl,v 1.4 2004/03/28 02:44:57 hobbs Exp $
#
# VStack.tcl --
#
# Virtual base class, do not instantiate! This is the core
# class for all NoteBook style widgets. Stack maintains a list
# of windows. It provides methods to create, delete windows as
# well as stepping through them.
#
# Copyright (c) 1993-1999 Ioi Kim Lam.
# Copyright (c) 2000-2001 Tix Project Group.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
#
tixWidgetClass tixVStack {
-virtual true
-classname TixVStack
-superclass tixPrimitive
-method {
add delete pageconfigure pagecget pages raise raised
}
-flag {
-dynamicgeometry -ipadx -ipady
}
-configspec {
{-dynamicgeometry dynamicGeometry DynamicGeometry 0 tixVerifyBoolean}
{-ipadx ipadX Pad 0}
{-ipady ipadY Pad 0}
}
}
proc tixVStack:InitWidgetRec {w} {
upvar #0 $w data
tixChainMethod $w InitWidgetRec
set data(pad-x1) 0
set data(pad-x2) 0
set data(pad-y1) 0
set data(pad-y2) 0
set data(windows) ""
set data(nWindows) 0
set data(topchild) ""
set data(minW) 1
set data(minH) 1
set data(w:top) $w
set data(counter) 0
set data(repack) 0
}
proc tixVStack:SetBindings {w} {
upvar #0 $w data
tixChainMethod $w SetBindings
tixCallMethod $w InitGeometryManager
}
#----------------------------------------------------------------------
# Public methods
#----------------------------------------------------------------------
proc tixVStack:add {w child args} {
upvar #0 $w data
set validOptions {-createcmd -raisecmd}
set opt(-createcmd) ""
set opt(-raisecmd) ""
tixHandleOptions -nounknown opt $validOptions $args
set data($child,raisecmd) $opt(-raisecmd)
set data($child,createcmd) $opt(-createcmd)
set data(w:$child) [tixCallMethod $w CreateChildFrame $child]
lappend data(windows) $child
incr data(nWindows) 1
return $data(w:$child)
}
proc tixVStack:delete {w child} {
upvar #0 $w data
if {[info exists data($child,createcmd)]} {
if {[winfo exists $data(w:$child)]} {
bind $data(w:$child) <Destroy> {;}
destroy $data(w:$child)
}
catch {unset data($child,createcmd)}
catch {unset data($child,raisecmd)}
catch {unset data(w:$child)}
set index [lsearch $data(windows) $child]
if {$index >= 0} {
set data(windows) [lreplace $data(windows) $index $index]
incr data(nWindows) -1
}
if {[string equal $data(topchild) $child]} {
set data(topchild) ""
foreach page $data(windows) {
if {$page ne $child} {
$w raise $page
set data(topchild) $page
break
}
}
}
} else {
error "page $child does not exist"
}
}
proc tixVStack:pagecget {w child option} {
upvar #0 $w data
if {![info exists data($child,createcmd)]} {
error "page \"$child\" does not exist in $w"
}
case $option {
-createcmd {
return "$data($child,createcmd)"
}
-raisecmd {
return "$data($child,raisecmd)"
}
default {
if {$data(w:top) ne $w} {
return [$data(w:top) pagecget $child $option]
} else {
error "unknown option \"$option\""
}
}
}
}
proc tixVStack:pageconfigure {w child args} {
upvar #0 $w data
if {![info exists data($child,createcmd)]} {
error "page \"$child\" does not exist in $w"
}
set len [llength $args]
if {$len == 0} {
set value [$data(w:top) pageconfigure $child]
lappend value [list -createcmd "" "" "" $data($child,createcmd)]
lappend value [list -raisecmd "" "" "" $data($child,raisecmd)]
return $value
}
if {$len == 1} {
case [lindex $args 0] {
-createcmd {
return [list -createcmd "" "" "" $data($child,createcmd)]
}
-raisecmd {
return [list -raisecmd "" "" "" $data($child,raisecmd)]
}
default {
return [$data(w:top) pageconfigure $child [lindex $args 0]]
}
}
}
# By default handle each of the options
#
set opt(-createcmd) $data($child,createcmd)
set opt(-raisecmd) $data($child,raisecmd)
tixHandleOptions -nounknown opt {-createcmd -raisecmd} $args
#
# the widget options
set new_args ""
foreach {flag value} $args {
if {$flag ne "-createcmd" && $flag ne "-raisecmd"} {
lappend new_args $flag
lappend new_args $value
}
}
if {[llength $new_args] >= 2} {
eval $data(w:top) pageconfig $child $new_args
}
#
# The add-on options
set data($child,raisecmd) $opt(-raisecmd)
set data($child,createcmd) $opt(-createcmd)
return ""
}
proc tixVStack:pages {w} {
upvar #0 $w data
return $data(windows)
}
proc tixVStack:raise {w child} {
upvar #0 $w data
if {![info exists data($child,createcmd)]} {
error "page $child does not exist"
}
if {[llength $data($child,createcmd)]} {
uplevel #0 $data($child,createcmd)
set data($child,createcmd) ""
}
tixCallMethod $w RaiseChildFrame $child
set oldTopChild $data(topchild)
set data(topchild) $child
if {$oldTopChild ne $child} {
if {[llength $data($child,raisecmd)]} {
uplevel #0 $data($child,raisecmd)
}
}
}
proc tixVStack:raised {w} {
upvar #0 $w data
return $data(topchild)
}
#----------------------------------------------------------------------
# Virtual Methods
#----------------------------------------------------------------------
proc tixVStack:InitGeometryManager {w} {
upvar #0 $w data
bind $w <Configure> "tixVStack:MasterGeomProc $w"
bind $data(w:top) <Destroy> "+tixVStack:DestroyTop $w"
if {$data(repack) == 0} {
set data(repack) 1
tixWidgetDoWhenIdle tixCallMethod $w Resize
}
}
proc tixVStack:CreateChildFrame {w child} {
upvar #0 $w data
set f [frame $data(w:top).$child]
tixManageGeometry $f "tixVStack:ClientGeomProc $w"
bind $f <Configure> "tixVStack:ClientGeomProc $w -configure $f"
bind $f <Destroy> "$w delete $child"
return $f
}
proc tixVStack:RaiseChildFrame {w child} {
upvar #0 $w data
# Hide the original visible window
if {$data(topchild) ne "" && $data(topchild) ne $child} {
tixUnmapWindow $data(w:$data(topchild))
}
set myW [winfo width $w]
set myH [winfo height $w]
set cW [expr {$myW - $data(pad-x1) - $data(pad-x2) - 2*$data(-ipadx)}]
set cH [expr {$myH - $data(pad-y1) - $data(pad-y2) - 2*$data(-ipady)}]
set cX [expr {$data(pad-x1) + $data(-ipadx)}]
set cY [expr {$data(pad-y1) + $data(-ipady)}]
if {$cW > 0 && $cH > 0} {
tixMoveResizeWindow $data(w:$child) $cX $cY $cW $cH
tixMapWindow $data(w:$child)
raise $data(w:$child)
}
}
#----------------------------------------------------------------------
#
# G E O M E T R Y M A N A G E M E N T
#
#----------------------------------------------------------------------
proc tixVStack:DestroyTop {w} {
catch {
destroy $w
}
}
proc tixVStack:MasterGeomProc {w args} {
if {![winfo exists $w]} {
return
}
upvar #0 $w data
if {$data(repack) == 0} {
set data(repack) 1
tixWidgetDoWhenIdle tixCallMethod $w Resize
}
}
proc tixVStack:ClientGeomProc {w flag client} {
if {![winfo exists $w]} {
return
}
upvar #0 $w data
if {$data(repack) == 0} {
set data(repack) 1
tixWidgetDoWhenIdle tixCallMethod $w Resize
}
if {$flag eq "-lostslave"} {
error "Geometry Management Error: \
Another geometry manager has taken control of $client.\
This error is usually caused because a widget has been created\
in the wrong frame: it should have been created inside $client instead\
of $w"
}
}
proc tixVStack:Resize {w} {
if {![winfo exists $w]} {
return
}
upvar #0 $w data
if {$data(nWindows) == 0} {
set data(repack) 0
return
}
if {$data(-width) == 0 || $data(-height) == 0} {
if {!$data(-dynamicgeometry)} {
# Calculate my required width and height
#
set maxW 1
set maxH 1
foreach child $data(windows) {
set cW [winfo reqwidth $data(w:$child)]
set cH [winfo reqheight $data(w:$child)]
if {$maxW < $cW} {
set maxW $cW
}
if {$maxH < $cH} {
set maxH $cH
}
}
set reqW $maxW
set reqH $maxH
} else {
if {$data(topchild) ne ""} {
set reqW [winfo reqwidth $data(w:$data(topchild))]
set reqH [winfo reqheight $data(w:$data(topchild))]
} else {
set reqW 1
set reqH 1
}
}
incr reqW [expr {$data(pad-x1) + $data(pad-x2) + 2*$data(-ipadx)}]
incr reqH [expr {$data(pad-y1) + $data(pad-y2) + 2*$data(-ipady)}]
if {$reqW < $data(minW)} {
set reqW $data(minW)
}
if {$reqH < $data(minH)} {
set reqH $data(minH)
}
}
# These take higher precedence
#
if {$data(-width) != 0} {
set reqW $data(-width)
}
if {$data(-height) != 0} {
set reqH $data(-height)
}
if {[winfo reqwidth $w] != $reqW || [winfo reqheight $w] != $reqH} {
if {![info exists data(counter)]} {
set data(counter) 0
}
if {$data(counter) < 50} {
incr data(counter)
tixGeometryRequest $w $reqW $reqH
tixWidgetDoWhenIdle tixCallMethod $w Resize
set data(repack) 1
return
}
}
set data(counter) 0
if {$data(w:top) ne $w} {
tixMoveResizeWindow $data(w:top) 0 0 [winfo width $w] [winfo height $w]
tixMapWindow $data(w:top)
}
if {[string equal $data(topchild) ""]} {
set top [lindex $data(windows) 0]
} else {
set top $data(topchild)
}
if {$top ne ""} {
tixCallMethod $w raise $top
}
set data(repack) 0
}