# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
# $Id: Tree.tcl,v 1.7 2004/04/09 21:39:12 hobbs Exp $
#
# Tree.tcl --
#
# This file implements the TixTree widget.
#
# 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 tixTree {
-classname TixTree
-superclass tixVTree
-method {
autosetmode close getmode open setmode
addchild anchor column delete entrycget
entryconfigure header hide indicator info
item nearest see selection show
}
-flag {
-browsecmd -command -opencmd -closecmd
}
-configspec {
{-browsecmd browseCmd BrowseCmd ""}
{-command command Command ""}
{-closecmd closeCmd CloseCmd ""}
{-opencmd openCmd OpenCmd ""}
}
-default {
{.scrollbar auto}
{*Scrollbar.takeFocus 0}
{*borderWidth 1}
{*hlist.background #c3c3c3}
{*hlist.drawBranch 1}
{*hlist.height 10}
{*hlist.highlightBackground #d9d9d9}
{*hlist.indicator 1}
{*hlist.indent 20}
{*hlist.itemType imagetext}
{*hlist.padX 2}
{*hlist.padY 2}
{*hlist.relief sunken}
{*hlist.takeFocus 1}
{*hlist.wideSelection 0}
{*hlist.width 20}
}
}
proc tixTree:InitWidgetRec {w} {
upvar #0 $w data
tixChainMethod $w InitWidgetRec
}
proc tixTree:ConstructWidget {w} {
upvar #0 $w data
tixChainMethod $w ConstructWidget
}
proc tixTree:SetBindings {w} {
upvar #0 $w data
tixChainMethod $w SetBindings
}
#----------------------------------------------------------------------
#
# Widget commands
#
#----------------------------------------------------------------------
proc tixTree:autosetmode {w} {
tixTree:SetModes $w ""
}
proc tixTree:close {w ent} {
upvar #0 $w data
set type [tixVTree:GetType $w $ent]
if {$type == "close"} {
tixCallMethod $w Activate $ent $type
}
}
proc tixTree:open {w ent} {
upvar #0 $w data
set type [tixVTree:GetType $w $ent]
if {$type == "open"} {
tixCallMethod $w Activate $ent $type
}
}
proc tixTree:getmode {w ent} {
tixVTree:GetType $w $ent
}
proc tixTree:setmode {w ent mode} {
tixVTree:SetMode $w $ent $mode
}
foreach cmd {
addchild anchor column delete entrycget
entryconfigure header hide indicator info
item nearest see selection show
} {
proc tixTree:$cmd {w args} {
# These are hlist passthrough methods to work around
# Tix' ignorant inheritance model.
upvar #0 $w data
set cmd [lindex [split [lindex [info level 0] 0] :] end]
uplevel 1 [linsert $args 0 $data(w:hlist) $cmd]
}
}
unset cmd
#----------------------------------------------------------------------
#
# Private Methods
#
#----------------------------------------------------------------------
proc tixTree:SetModes {w ent} {
upvar #0 $w data
set mode none
if {$ent == ""} {
set children [$data(w:hlist) info children]
} else {
set children [$data(w:hlist) info children $ent]
}
if {$children != ""} {
set mode close
foreach c $children {
if {[$data(w:hlist) info hidden $c]} {
set mode open
}
tixTree:SetModes $w $c
}
}
if {$ent != ""} {
tixVTree:SetMode $w $ent $mode
}
}
#----------------------------------------------------------------------
#
# Virtual Methods
#
#----------------------------------------------------------------------
proc tixTree:OpenCmd {w ent} {
upvar #0 $w data
if {$data(-opencmd) != ""} {
tixTree:CallSwitchCmd $w $data(-opencmd) $ent
} else {
tixChainMethod $w OpenCmd $ent
}
}
proc tixTree:CloseCmd {w ent} {
upvar #0 $w data
if {$data(-closecmd) != ""} {
tixTree:CallSwitchCmd $w $data(-closecmd) $ent
} else {
tixChainMethod $w CloseCmd $ent
}
}
# Call the opencmd or closecmd, depending on the mode ($cmd argument)
#
proc tixTree:CallSwitchCmd {w cmd ent} {
upvar #0 $w data
set bind(specs) {%V}
set bind(%V) $ent
tixEvalCmdBinding $w $cmd bind $ent
}
proc tixTree:Command {w B} {
upvar #0 $w data
upvar $B bind
tixChainMethod $w Command $B
set ent [tixEvent flag V]
if {$data(-command) != ""} {
tixEvalCmdBinding $w $data(-command) bind $ent
}
}
proc tixTree:BrowseCmd {w B} {
upvar #0 $w data
set ent [tixEvent flag V]
if {$data(-browsecmd) != ""} {
tixEvalCmdBinding $w $data(-browsecmd) "" $ent
}
}