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- package Tk::DirTree;
- # DirTree -- TixDirTree widget
- #
- # Derived from DirTree.tcl in Tix 4.1
- #
- # Chris Dean <ctdean@cogit.com>
-
- use vars qw($VERSION);
- $VERSION = '3.023'; # $Id: //depot/Tk8/Tixish/DirTree.pm#23 $
-
- use Tk;
- use Tk::Derived;
- use Tk::Tree;
- use Cwd;
- use DirHandle;
-
- use base qw(Tk::Derived Tk::Tree);
- use strict;
-
- Construct Tk::Widget 'DirTree';
-
-
- sub Populate {
- my( $cw, $args ) = @_;
-
- $cw->SUPER::Populate( $args );
-
- $cw->ConfigSpecs(
- -dircmd => [qw/CALLBACK dirCmd DirCmd DirCmd/],
- -showhidden => [qw/PASSIVE showHidden ShowHidden 0/],
- -image => [qw/PASSIVE image Image folder/],
- -directory => [qw/SETMETHOD directory Directory ./],
- -value => '-directory' );
-
- $cw->configure( -separator => '/', -itemtype => 'imagetext' );
- }
-
- sub DirCmd {
- my( $w, $dir, $showhidden ) = @_;
-
- my $h = DirHandle->new( $dir ) or return();
- my @names = grep( $_ ne '.' && $_ ne '..', $h->read );
- @names = grep( ! /^[.]/, @names ) unless $showhidden;
- return( @names );
- }
-
- *dircmd = \&DirCmd;
-
- sub fullpath
- {
- my ($path) = @_;
- my $cwd = getcwd();
- if (chdir($path))
- {
- $path = getcwd();
- chdir($cwd) || die "Cannot cd back to $cwd:$!";
- }
- else
- {
- warn "Cannot cd to $path:$!"
- }
- return $path;
- }
-
- sub directory {
- my ($w,$key,$val) = @_;
- if (defined $w->cget('-image'))
- {
- $w->chdir( $val );
- }
- else
- {
- # We have a default for -image, so its being undefined
- # is probably caused by order of handling config defaults
- # so defer it.
- $w->afterIdle([$w, 'chdir' => $val]);
- }
- }
-
- sub chdir {
- my( $w, $val ) = @_;
- my $fulldir = fullpath( $val );
-
- my $parent = '/';
- if ($^O eq 'MSWin32')
- {
- if ($fulldir =~ s/^([a-z]:)//i)
- {
- $parent = $1;
- }
- }
- $w->add_to_tree( $parent, $parent) unless $w->infoExists($parent);
-
- my @dirs = ($parent);
- foreach my $name (split( /[\/\\]/, $fulldir )) {
- next unless length $name;
- push @dirs, $name;
- my $dir = join( '/', @dirs );
- $w->add_to_tree( $dir, $name, $parent )
- unless $w->infoExists( $dir );
- $parent = $dir;
- }
-
- $w->OpenCmd( $parent );
- $w->setmode( $parent, 'close' );
- }
-
-
- sub OpenCmd {
- my( $w, $dir ) = @_;
-
- my $parent = $dir;
- $dir = '' if $dir eq '/';
- foreach my $name ($w->dirnames( $parent )) {
- next if ($name eq '.' || $name eq '..');
- my $subdir = "$dir/$name";
- next unless -d $subdir;
- if( $w->infoExists( $subdir ) ) {
- $w->show( -entry => $subdir );
- } else {
- $w->add_to_tree( $subdir, $name, $parent );
- }
- }
- }
-
- *opencmd = \&OpenCmd;
-
- sub add_to_tree {
- my( $w, $dir, $name, $parent ) = @_;
-
- my $image = $w->Getimage( $w->cget('-image') );
- my $mode = 'none';
- $mode = 'open' if $w->has_subdir( $dir );
-
- my @args = (-image => $image, -text => $name);
- if( $parent ) { # Add in alphabetical order.
- foreach my $sib ($w->infoChildren( $parent )) {
- if( $sib gt $dir ) {
- push @args, (-before => $sib);
- last;
- }
- }
- }
-
- $w->add( $dir, @args );
- $w->setmode( $dir, $mode );
- }
-
- sub has_subdir {
- my( $w, $dir ) = @_;
- foreach my $name ($w->dirnames( $dir )) {
- next if ($name eq '.' || $name eq '..');
- next if ($name =~ /^\.+$/);
- return( 1 ) if -d "$dir/$name";
- }
- return( 0 );
- }
-
- sub dirnames {
- my( $w, $dir ) = @_;
- my @names = $w->Callback( '-dircmd', $dir, $w->cget( '-showhidden' ) );
- return( @names );
- }
-
- __END__
-
- # Copyright (c) 1996, Expert Interface Technologies
- # See the file "license.terms" for information on usage and redistribution
- # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- #
- # The file man.macros and some of the macros used by this file are
- # copyrighted: (c) 1990 The Regents of the University of California.
- # (c) 1994-1995 Sun Microsystems, Inc.
- # The license terms of the Tcl/Tk distrobution are in the file
- # license.tcl.
-
-