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351 lines
8.8 KiB
351 lines
8.8 KiB
6 years ago
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# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
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#
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# $Id: DirTree.tcl,v 1.4 2004/03/28 02:44:57 hobbs Exp $
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#
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# DirTree.tcl --
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#
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# Implements directory tree for Unix file systems
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#
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# What the indicators mean:
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#
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# (+): There are some subdirectories in this directory which are not
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# currently visible.
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# (-): This directory has some subdirectories and they are all visible
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#
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# none: The dir has no subdirectori(es).
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#
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# Copyright (c) 1993-1999 Ioi Kim Lam.
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# Copyright (c) 2000-2001 Tix Project Group.
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# Copyright (c) 2004 ActiveState
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#
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# See the file "license.terms" for information on usage and redistribution
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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#
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##
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## The tixDirTree require special FS handling due to it's limited
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## separator idea (instead of real tree).
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##
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tixWidgetClass tixDirTree {
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-classname TixDirTree
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-superclass tixVTree
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-method {
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activate chdir refresh
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}
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-flag {
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-browsecmd -command -directory -disablecallback -showhidden -value
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}
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-configspec {
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{-browsecmd browseCmd BrowseCmd ""}
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{-command command Command ""}
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{-disablecallback disableCallback DisableCallback 0 tixVerifyBoolean}
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{-showhidden showHidden ShowHidden 0 tixVerifyBoolean}
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{-value value Value ""}
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}
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-alias {
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{-directory -value}
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}
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-default {
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{.scrollbar auto}
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{*Scrollbar.takeFocus 0}
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{*borderWidth 1}
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{*hlist.indicator 1}
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{*hlist.background #c3c3c3}
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{*hlist.drawBranch 1}
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{*hlist.height 10}
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{*hlist.highlightBackground #d9d9d9}
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{*hlist.indent 20}
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{*hlist.itemType imagetext}
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{*hlist.padX 3}
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{*hlist.padY 0}
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{*hlist.relief sunken}
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{*hlist.takeFocus 1}
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{*hlist.wideSelection 0}
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{*hlist.width 20}
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}
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}
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proc tixDirTree:InitWidgetRec {w} {
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upvar #0 $w data
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tixChainMethod $w InitWidgetRec
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if {$data(-value) == ""} {
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set data(-value) [pwd]
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}
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tixDirTree:SetDir $w [file normalize $data(-value)]
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}
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proc tixDirTree:ConstructWidget {w} {
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upvar #0 $w data
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tixChainMethod $w ConstructWidget
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tixDoWhenMapped $w [list tixDirTree:StartUp $w]
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$data(w:hlist) config -separator [tixFSSep] \
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-selectmode "single" -drawbranch 1
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# We must creat an extra copy of these images to avoid flashes on
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# the screen when user changes directory
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#
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set data(images) [image create compound -window $data(w:hlist)]
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$data(images) add image -image [tix getimage act_fold]
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$data(images) add image -image [tix getimage folder]
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$data(images) add image -image [tix getimage openfold]
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}
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proc tixDirTree:SetBindings {w} {
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upvar #0 $w data
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tixChainMethod $w SetBindings
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}
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# Add one dir into the node (parent directory), sorted alphabetically
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#
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proc tixDirTree:AddToList {w fsdir image} {
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upvar #0 $w data
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set dir [tixFSInternal $fsdir]
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if {[$data(w:hlist) info exists $dir]} { return }
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set parent [file dirname $fsdir]
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if {$fsdir eq $parent} {
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# root node
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set node ""
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} else {
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# regular node
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set node [tixFSInternal $parent]
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}
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set added 0
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set text [tixFSDisplayFileName $fsdir]
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foreach sib [$data(w:hlist) info children $node] {
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if {[string compare $dir $sib] < 0} {
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$data(w:hlist) add $dir -before $sib -text $text -image $image
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set added 1
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break
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}
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}
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if {!$added} {
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$data(w:hlist) add $dir -text $text -image $image
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}
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# Check to see if we have children (%% optimize!)
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if {[llength [tixFSListDir $fsdir 1 0 0 $data(-showhidden)]]} {
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tixVTree:SetMode $w $dir open
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}
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}
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proc tixDirTree:LoadDir {w fsdir {mode toggle}} {
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if {![winfo exists $w]} { return }
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upvar #0 $w data
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# Add the directory and set it to the active directory
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#
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set fsdir [tixFSNormalize $fsdir]
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set dir [tixFSInternal $fsdir]
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if {![$data(w:hlist) info exists $dir]} {
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# Add $dir and all ancestors of $dir into the HList widget
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set fspath ""
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set imgopenfold [tix getimage openfold]
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foreach part [tixFSAncestors $fsdir] {
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set fspath [file join $fspath $part]
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tixDirTree:AddToList $w $fspath $imgopenfold
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}
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}
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$data(w:hlist) entryconfig $dir -image [tix getimage act_fold]
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if {$mode eq "toggle"} {
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if {[llength [$data(w:hlist) info children $dir]]} {
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set mode flatten
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} else {
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set mode expand
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}
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}
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if {$mode eq "expand"} {
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# Add all the sub directories of fsdir into the HList widget
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tixBusy $w on $data(w:hlist)
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set imgfolder [tix getimage folder]
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foreach part [tixFSListDir $fsdir 1 0 0 $data(-showhidden)] {
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tixDirTree:AddToList $w [file join $fsdir $part] $imgfolder
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}
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tixWidgetDoWhenIdle tixBusy $w off $data(w:hlist)
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# correct indicator to represent children status (added above)
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if {[llength [$data(w:hlist) info children $dir]]} {
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tixVTree:SetMode $w $dir close
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} else {
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tixVTree:SetMode $w $dir none
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}
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} else {
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$data(w:hlist) delete offsprings $dir
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tixVTree:SetMode $w $dir open
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}
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}
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proc tixDirTree:ToggleDir {w value mode} {
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upvar #0 $w data
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tixDirTree:LoadDir $w $value $mode
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tixDirTree:CallCommand $w
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}
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proc tixDirTree:CallCommand {w} {
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upvar #0 $w data
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if {[llength $data(-command)] && !$data(-disablecallback)} {
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set bind(specs) {%V}
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set bind(%V) $data(-value)
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tixEvalCmdBinding $w $data(-command) bind $data(-value)
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}
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}
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proc tixDirTree:CallBrowseCmd {w ent} {
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upvar #0 $w data
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if {[llength $data(-browsecmd)] && !$data(-disablecallback)} {
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set bind(specs) {%V}
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set bind(%V) $data(-value)
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tixEvalCmdBinding $w $data(-browsecmd) bind [list $data(-value)]
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}
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}
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proc tixDirTree:StartUp {w} {
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if {![winfo exists $w]} { return }
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upvar #0 $w data
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# make sure that all the basic volumes are listed
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set imgopenfold [tix getimage openfold]
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foreach fspath [tixFSVolumes] {
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tixDirTree:AddToList $w $fspath $imgopenfold
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}
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tixDirTree:LoadDir $w [tixFSExternal $data(i-directory)]
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}
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proc tixDirTree:ChangeDir {w fsdir {forced 0}} {
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upvar #0 $w data
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set dir [tixFSInternal $fsdir]
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if {!$forced && $data(i-directory) eq $dir} {
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return
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}
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if {!$forced && [$data(w:hlist) info exists $dir]} {
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# Set the old directory to "non active"
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#
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if {[$data(w:hlist) info exists $data(i-directory)]} {
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$data(w:hlist) entryconfig $data(i-directory) \
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-image [tix getimage folder]
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}
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$data(w:hlist) entryconfig $dir -image [tix getimage act_fold]
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} else {
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if {$forced} {
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if {[llength [$data(w:hlist) info children $dir]]} {
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set mode expand
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} else {
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set mode flatten
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}
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} else {
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set mode toggle
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}
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tixDirTree:LoadDir $w $fsdir $mode
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tixDirTree:CallCommand $w
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}
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tixDirTree:SetDir $w $fsdir
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}
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proc tixDirTree:SetDir {w path} {
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upvar #0 $w data
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set data(i-directory) [tixFSInternal $path]
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set data(-value) [tixFSNativeNorm $path]
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}
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#----------------------------------------------------------------------
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#
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# Virtual Methods
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#
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#----------------------------------------------------------------------
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proc tixDirTree:OpenCmd {w ent} {
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set fsdir [tixFSExternal $ent]
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tixDirTree:ToggleDir $w $fsdir expand
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tixDirTree:ChangeDir $w $fsdir
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tixDirTree:CallBrowseCmd $w $fsdir
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}
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proc tixDirTree:CloseCmd {w ent} {
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set fsdir [tixFSExternal $ent]
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tixDirTree:ToggleDir $w $fsdir flatten
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tixDirTree:ChangeDir $w $fsdir
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tixDirTree:CallBrowseCmd $w $fsdir
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}
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proc tixDirTree:Command {w B} {
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upvar #0 $w data
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upvar $B bind
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set ent [tixEvent flag V]
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tixChainMethod $w Command $B
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if {[llength $data(-command)]} {
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set fsdir [tixFSExternal $ent]
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tixEvalCmdBinding $w $data(-command) bind $fsdir
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}
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}
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# This is a virtual method
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#
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proc tixDirTree:BrowseCmd {w B} {
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upvar #0 $w data
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upvar 1 $B bind
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set ent [tixEvent flag V]
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set fsdir [tixFSExternal $ent]
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# This is a hack because %V may have been modified by callbrowsecmd
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set fsdir [file normalize $fsdir]
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tixDirTree:ChangeDir $w $fsdir
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tixDirTree:CallBrowseCmd $w $fsdir
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}
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#----------------------------------------------------------------------
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#
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# Public Methods
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#
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#----------------------------------------------------------------------
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proc tixDirTree:chdir {w value} {
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tixDirTree:ChangeDir $w [file normalize $value]
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}
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proc tixDirTree:refresh {w {dir ""}} {
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upvar #0 $w data
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if {$dir eq ""} {
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set dir $data(-value)
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}
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set dir [file normalize $dir]
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tixDirTree:ChangeDir $w $dir 1
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# Delete any stale directories that no longer exist
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#
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foreach child [$data(w:hlist) info children [tixFSInternal $dir]] {
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if {![file exists [tixFSExternal $child]]} {
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$data(w:hlist) delete entry $child
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}
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}
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}
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proc tixDirTree:config-directory {w value} {
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tixDirTree:ChangeDir $w [file normalize $value]
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}
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