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DirTree.tcl
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# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
# $Id: DirTree.tcl,v 1.2.2.2 2002/01/24 10:08:58 idiscovery Exp $
#
# DirTree.tcl --
#
# Implements directory tree for Unix file systems
#
# What the indicators mean:
#
# (+): There are some subdirectories in this directory which are not
# currently visible.
# (-): This directory has some subdirectories and they are all visible
#
# none: The dir has no subdirectori(es).
#
# 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 tixDirTree {
-classname TixDirTree
-superclass tixVTree
-method {
activate chdir refresh
}
-flag {
-browsecmd -command -directory -disablecallback -showhidden -value
}
-configspec {
{-browsecmd browseCmd BrowseCmd ""}
{-command command Command ""}
{-disablecallback disableCallback DisableCallback 0 tixVerifyBoolean}
{-showhidden showHidden ShowHidden 0 tixVerifyBoolean}
{-value value Value ""}
}
-alias {
{-directory -value}
}
-default {
{.scrollbar auto}
{*Scrollbar.takeFocus 0}
{*borderWidth 1}
{*hlist.indicator 1}
{*hlist.background #c3c3c3}
{*hlist.drawBranch 1}
{*hlist.height 10}
{*hlist.highlightBackground #d9d9d9}
{*hlist.indent 20}
{*hlist.itemType imagetext}
{*hlist.padX 3}
{*hlist.padY 0}
{*hlist.relief sunken}
{*hlist.takeFocus 1}
{*hlist.wideSelection 0}
{*hlist.width 20}
}
}
proc tixDirTree:InitWidgetRec {w} {
upvar #0 $w data
tixChainMethod $w InitWidgetRec
if {$data(-value) == ""} {
global env
if {[info exists env(PWD)]} {
set data(-value) $env(PWD)
} else {
set data(-value) [pwd]
}
}
tixDirTree:SetDir $w [tixFileIntName $data(-value)]
}
proc tixDirTree:ConstructWidget {w} {
upvar #0 $w data
tixChainMethod $w ConstructWidget
tixDoWhenMapped $w "tixDirTree:StartUp $w"
$data(w:hlist) config \
-separator [tixDirSep] \
-selectmode "single" -drawbranch 1
# We must creat an extra copy of these images to avoid flashes on
# the screen when user changes directory
#
set data(images) [image create compound -window $data(w:hlist)]
$data(images) add image -image [tix getimage act_fold]
$data(images) add image -image [tix getimage folder]
$data(images) add image -image [tix getimage openfold]
}
proc tixDirTree:SetBindings {w} {
upvar #0 $w data
tixChainMethod $w SetBindings
# %% do I still need this?
# bind $data(w:hlist) <3> "tixDirTree:DeleteSib $w %x %y"
}
# This procedure is supposed to "trim" the directory tree view to
# just the current directory and its ancestors.
#
#proc tixDirTree:DeleteSib {w x y} {
# upvar #0 $w data
#
# set ent [$data(w:hlist) nearest $y]
#
# if {$ent != ""} {
# $data(w:hlist) anchor set $ent
#
# for {set e $ent} {$e != "/"} {set e [$data(w:hlist) info parent $e]} {
# $data(w:hlist) delete siblings $e
# }
# tixDirTree:Browse $w $ent
# }
#}
# %% This functions needs to be optimized
#
#
proc tixDirTree:HasSubDir {w dir} {
upvar #0 $w data
if {[tixListDir $dir 1 0 0 $data(-showhidden)] != ""} {
return 1
} else {
return 0
}
}
# Add one dir into the parent directory, sorted alphabetically
#
proc tixDirTree:AddToList {w dir parent name image} {
upvar #0 $w data
set added 0
foreach sib [$data(w:hlist) info children $parent] {
if {[string compare $dir $sib] < 0} {
$data(w:hlist) add $dir -before $sib -text $name -image $image
set added 1
break
}
}
if {!$added} {
$data(w:hlist) add $dir -text $name -image $image
}
if {[tixDirTree:HasSubDir $w $dir]} {
tixVTree:SetMode $w $dir open
}
}
# Add $dir and all ancestors of $dir into the HList widget
#
#
proc tixDirTree:AddAncestors {w dir} {
upvar #0 $w data
set path ""
set parent ""
foreach name [tixFileSplit $dir] {
set path [tixSubFolder $path $name]
if {![$data(w:hlist) info exists $path]} {
tixDirTree:AddToList $w $path $parent [tixFileDisplayName $path] \
[tix getimage openfold]
}
set parent $path
}
}
# Add all the sub directories of $dir into the HList widget
#
#
proc tixDirTree:ListDirs {w dir} {
upvar #0 $w data
uplevel #0 set TRANSPARENT_GIF_COLOR [$data(w:hlist) cget -bg]
tixBusy $w on $data(w:hlist)
foreach name [tixListDir $dir 1 0 0 $data(-showhidden)] {
set subdir [tixSubFolder $dir $name]
if {![$data(w:hlist) info exists $subdir]} {
tixDirTree:AddToList $w $subdir $dir [tixFileDisplayName $subdir] \
[tix getimage folder]
}
}
tixWidgetDoWhenIdle tixBusy $w off $data(w:hlist)
}
proc tixDirTree:LoadDir {w dir {mode toggle}} {
if {![winfo exists $w]} {
return
}
upvar #0 $w data
uplevel #0 set TRANSPARENT_GIF_COLOR [$data(w:hlist) cget -bg]
# Add the directory and set it to the active directory
#
if {![$data(w:hlist) info exists $dir]} {
tixDirTree:AddAncestors $w $dir
}
$data(w:hlist) entryconfig $dir -image [tix getimage act_fold]
if {$mode == "toggle"} {
if {[$data(w:hlist) info children $dir] == ""} {
set mode expand
} else {
set mode flatten
}
}
if {$mode == "expand"} {
tixDirTree:ListDirs $w $dir
if {[$data(w:hlist) info children $dir] == ""} {
tixVTree:SetMode $w $dir none
} else {
tixVTree:SetMode $w $dir close
}
} else {
$data(w:hlist) delete offsprings $dir
tixVTree:SetMode $w $dir open
}
}
proc tixDirTree:ToggleDir {w value mode} {
upvar #0 $w data
tixDirTree:LoadDir $w $value $mode
tixDirTree:CallCommand $w
}
proc tixDirTree:CallCommand {w} {
upvar #0 $w data
if {$data(-command) != "" && !$data(-disablecallback)} {
set bind(specs) {%V}
set bind(%V) $data(-value)
tixEvalCmdBinding $w $data(-command) bind $data(-value)
}
}
proc tixDirTree:CallBrowseCmd {w ent} {
upvar #0 $w data
if {$data(-browsecmd) != "" && !$data(-disablecallback)} {
set bind(specs) {%V}
set bind(%V) $data(-value)
tixEvalCmdBinding $w $data(-browsecmd) bind [list $data(-value)]
}
}
proc tixDirTree:StartUp {w} {
if {![winfo exists $w]} {
return
}
upvar #0 $w data
tixDirTree:LoadDir $w $data(i-directory)
}
proc tixDirTree:ChangeDir {w value {forced 0}} {
upvar #0 $w data
if {!$forced && $data(i-directory) == $value} {
return
}
uplevel #0 set TRANSPARENT_GIF_COLOR [$data(w:hlist) cget -bg]
if {!$forced && [$data(w:hlist) info exists $value]} {
# Set the old directory to "non active"
#
if {[$data(w:hlist) info exists $data(i-directory)]} {
$data(w:hlist) entryconfig $data(i-directory) \
-image [tix getimage folder]
}
$data(w:hlist) entryconfig $value \
-image [tix getimage act_fold]
} else {
if {$forced} {
if {[$data(w:hlist) info children $value] == ""} {
set mode flatten
} else {
set mode expand
}
} else {
set mode toggle
}
tixDirTree:LoadDir $w $value $mode
tixDirTree:CallCommand $w
}
tixDirTree:SetDir $w $value
}
proc tixDirTree:SetDir {w intName} {
upvar #0 $w data
set data(i-directory) $intName
set data(-value) [tixNativeName $intName]
}
#----------------------------------------------------------------------
#
# Virtual Methods
#
#----------------------------------------------------------------------
proc tixDirTree:OpenCmd {w ent} {
tixDirTree:ToggleDir $w $ent expand
tixDirTree:ChangeDir $w $ent
tixDirTree:CallBrowseCmd $w $ent
}
proc tixDirTree:CloseCmd {w ent} {
tixDirTree:ToggleDir $w $ent flatten
tixDirTree:ChangeDir $w $ent
tixDirTree:CallBrowseCmd $w $ent
}
proc tixDirTree:Command {w B} {
upvar #0 $w data
upvar $B bind
set ent [tixEvent flag V]
tixChainMethod $w Command $B
if {$data(-command) != ""} {
tixEvalCmdBinding $w $data(-command) bind $ent
}
}
# This is a virtual method
#
proc tixDirTree:BrowseCmd {w B} {
upvar #0 $w data
upvar $B bind
set ent [tixEvent flag V]
# if {[$data(w:hlist) indicator exist $ent] &&
# [$data(w:hlist) info children $ent] == ""} {
#
# tixVTree:Activate $w $ent open
# }
if {[string index $ent 0] != "/"} {
# This is a hack because %V may have been modified by
# callbrowsecmd ....
set ent [tixFileIntName $ent]
}
tixDirTree:ChangeDir $w $ent
tixDirTree:CallBrowseCmd $w $ent
}
#----------------------------------------------------------------------
#
# Public Methods
#
#----------------------------------------------------------------------
proc tixDirTree:chdir {w value} {
tixDirTree:ChangeDir $w [tixFileIntName $value]
}
proc tixDirTree:refresh {w {dir ""}} {
upvar #0 $w data
if {$dir == ""} {
set dir $data(-value)
}
tixDirTree:ChangeDir $w [tixFileIntName $dir] 1
# Delete any stale directories that no longer exist
#
foreach sub [$data(w:hlist) info children [tixFileIntName $dir]] {
if {![file exists [tixNativeName $sub]]} {
$data(w:hlist) delete entry $sub
}
}
}
proc tixDirTree:config-directory {w value} {
tixDirTree:ChangeDir $w [tixFileIntName $value]
}