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# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
# $Id: DirList.tcl,v 1.5 2004/03/28 02:44:57 hobbs Exp $
#
# DirList.tcl --
#
# Implements the tixDirList widget.
#
# - overrides the -browsecmd and -command options of the
# HList subwidget
#
# Copyright (c) 1993-1999 Ioi Kim Lam.
# Copyright (c) 2000-2001 Tix Project Group.
# Copyright (c) 2004 ActiveState
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
tixWidgetClass tixDirList {
-classname TixDirList
-superclass tixScrolledHList
-method {
chdir
}
-flag {
-browsecmd -command -dircmd -disablecallback
-root -rootname -showhidden -value
}
-configspec {
{-browsecmd browseCmd BrowseCmd ""}
{-command command Command ""}
{-dircmd dirCmd DirCmd ""}
{-disablecallback disableCallback DisableCallback 0 tixVerifyBoolean}
{-root root Root ""}
{-rootname rootName RootName ""}
{-showhidden showHidden ShowHidden 0 tixVerifyBoolean}
{-value value Value ""}
}
-default {
{.scrollbar auto}
{*borderWidth 1}
{*hlist.background #c3c3c3}
{*hlist.indent 7}
{*hlist.relief sunken}
{*hlist.height 10}
{*hlist.width 20}
{*hlist.padX 2}
{*hlist.padY 0}
{*hlist.wideSelection 0}
{*hlist.drawBranch 0}
{*hlist.highlightBackground #d9d9d9}
{*hlist.itemType imagetext}
{*hlist.takeFocus 1}
}
-forcecall {
-value
}
}
# Important data members:
#
# data(vpath)
# The currently selected vpath. This internal variable is useful on
# the Win95 platform, where an directory may correspond to more than
# one node in the hierarchy. For example, C:\Windows\Desktop\Foo
# can appead as "Desktop\Foo" and
# "Desktop\My Computer\C:\Windows\Desktop\Foo". This variable tells us
# which icon should we show given the same DOS pathname.
#
proc tixDirList:InitWidgetRec {w} {
upvar #0 $w data
tixChainMethod $w InitWidgetRec
}
proc tixDirList:ConstructWidget {w} {
upvar #0 $w data
tixChainMethod $w ConstructWidget
$data(w:hlist) config -separator [tixFSSep] -selectmode "single"
}
proc tixDirList:SetBindings {w} {
upvar #0 $w data
tixChainMethod $w SetBindings
$data(w:hlist) config \
-browsecmd [list tixDirList:Browse $w] \
-command [list tixDirList:Command $w]
if {$data(-value) eq ""
|| [catch {set data(-value) [tixFSNormalize $data(-value)]}]} {
set data(-value) [pwd]
}
set data(vpath) [tixFSInternal $data(-value)]
}
#----------------------------------------------------------------------
# Incoming-Events
#----------------------------------------------------------------------
proc tixDirList:Browse {w args} {
upvar #0 $w data
set vpath [tixEvent flag V]
set value [$data(w:hlist) info data $vpath]
tixDirList:HighLight $w $vpath
set data(vpath) $vpath
set data(-value) [tixFSExternal $value]
tixDirList:CallBrowseCmd $w $data(-value)
}
proc tixDirList:Command {w args} {
upvar #0 $w data
set vpath [tixEvent value]
set value [$data(w:hlist) info data $vpath]
set data(-value) [tixFSExternal $value]
tixDirList:LoadDir $w [tixFSNativeNorm $value] $vpath
tixDirList:HighLight $w $vpath
set data(vpath) $vpath
tixDirList:CallCommand $w $data(-value)
}
#----------------------------------------------------------------------
# Outgoing-Events
#----------------------------------------------------------------------
proc tixDirList:CallBrowseCmd {w npath} {
upvar #0 $w data
if {[llength $data(-browsecmd)]} {
set bind(specs) "%V"
set bind(%V) $npath
tixEvalCmdBinding $w $data(-browsecmd) bind $npath
}
}
proc tixDirList:CallCommand {w npath} {
upvar #0 $w data
if {[llength $data(-command)] && !$data(-disablecallback)} {
set bind(specs) "%V"
set bind(%V) $npath
tixEvalCmdBinding $w $data(-command) bind $npath
}
}
#----------------------------------------------------------------------
# Directory loading
#----------------------------------------------------------------------
proc tixDirList:LoadDir {w {npath ""} {vpath ""}} {
upvar #0 $w data
tixBusy $w on $data(w:hlist)
$data(w:hlist) delete all
if {$npath eq ""} {
set npath [tixFSNativeNorm $data(-value)]
set vpath [tixFSInternal $npath]
}
tixDirList:ListHierachy $w $npath $vpath
tixDirList:ListSubDirs $w $npath $vpath
tixWidgetDoWhenIdle tixBusy $w off $data(w:hlist)
}
proc tixDirList:ListHierachy {w npath vpath} {
upvar #0 $w data
set img [tix getimage openfold]
set curpath ""
foreach part [tixFSAncestors $npath] {
set curpath [file join $curpath $part]
set text [tixFSDisplayFileName $curpath]
set vpath [tixFSInternal $curpath]
$data(w:hlist) add $vpath -text $text -data $curpath -image $img
}
}
proc tixDirList:ListSubDirs {w npath vpath} {
upvar #0 $w data
$data(w:hlist) entryconfig $vpath -image [tix getimage act_fold]
set img [tix getimage folder]
foreach ent [tixFSListDir $npath 1 0 0 $data(-showhidden)] {
set curpath [file join $npath $ent]
set vp [tixFSInternal $curpath]
if {![$data(w:hlist) info exists $vp]} {
$data(w:hlist) add $vp -text $ent -data $curpath -image $img
}
}
}
proc tixDirList:SetValue {w npath vpath {flag ""}} {
upvar #0 $w data
if {$flag eq "reload" || ![$data(w:hlist) info exists $vpath]} {
tixDirList:LoadDir $w $npath $vpath
}
tixDirList:HighLight $w $vpath
set data(-value) [tixFSNativeNorm $npath]
set data(vpath) $vpath
tixDirList:CallCommand $w $data(-value)
}
proc tixDirList:HighLight {w vpath} {
upvar #0 $w data
if {$data(vpath) ne $vpath} {
set old $data(vpath)
if {[$data(w:hlist) info exists $old]} {
# Un-highlight the originally selected entry by changing its
# folder image
if {[llength [$data(w:hlist) info children $old]]} {
set img [tix getimage openfold]
} else {
set img [tix getimage folder]
}
$data(w:hlist) entryconfig $old -image $img
}
}
# Highlight the newly selected entry
#
$data(w:hlist) entryconfig $vpath -image [tix getimage act_fold]
$data(w:hlist) anchor set $vpath
$data(w:hlist) select clear
$data(w:hlist) select set $vpath
$data(w:hlist) see $vpath
}
#----------------------------------------------------------------------
# Config options
#----------------------------------------------------------------------
proc tixDirList:config-value {w value} {
upvar #0 $w data
tixDirList:chdir $w $value
return $data(-value)
}
proc tixDirList:config-showhidden {w value} {
upvar #0 $w data
tixWidgetDoWhenIdle tixDirList:LoadDir $w
}
#----------------------------------------------------------------------
# Public methods
#----------------------------------------------------------------------
proc tixDirList:chdir {w value} {
upvar #0 $w data
set npath [tixFSNativeNorm $value]
tixDirList:SetValue $w $npath [tixFSInternal $npath]
}