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150 lines
3.7 KiB
150 lines
3.7 KiB
# -*-mode: tcl; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
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#
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# $Id: DynTree.tcl,v 1.3 2001/12/09 05:31:07 idiscovery Exp $
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#
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# Tix Demostration Program
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#
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# This sample program is structured in such a way so that it can be
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# executed from the Tix demo program "widget": it must have a
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# procedure called "RunSample". It should also have the "if" statment
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# at the end of this file so that it can be run as a standalone
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# program using tixwish.
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# This file demonstrates how to use the TixTree widget to display
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# dynamic hierachical data (the files in the Unix file system)
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#
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proc RunSample {w} {
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# We create the frame and the ScrolledHList widget
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# at the top of the dialog box
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#
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frame $w.top -relief raised -bd 1
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# Create a TixTree widget to display the hypothetical DOS disk drive
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#
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#
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tixTree $w.top.a -options {
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hlist.separator "/"
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hlist.width 35
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hlist.height 25
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}
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pack $w.top.a -expand yes -fill both -padx 10 -pady 10 -side left
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set tree $w.top.a
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set hlist [$tree subwidget hlist]
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$tree config -opencmd "DynTree:OpenDir $tree"
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# Add the root directory the TixTree widget
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DynTree:AddDir $tree /
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# The / directory is added in the "open" mode. The user can open it
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# and then browse its subdirectories ...
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# Use a ButtonBox to hold the buttons.
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#
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tixButtonBox $w.box -orientation horizontal
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$w.box add ok -text Ok -underline 0 -command "destroy $w" \
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-width 6
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$w.box add cancel -text Cancel -underline 0 -command "destroy $w" \
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-width 6
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pack $w.box -side bottom -fill x
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pack $w.top -side top -fill both -expand yes
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}
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proc DynTree:AddDir {tree dir} {
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set hlist [$tree subwidget hlist]
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if {$dir == "/"} {
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set text /
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} else {
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set text [file tail $dir]
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}
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$hlist add $dir -itemtype imagetext \
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-text $text -image [tix getimage folder]
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catch {
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# We need a catch here because the directory may not be readable by us
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#
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$tree setmode $dir none
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if {[glob -nocomplain $dir/*] != {}} {
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$tree setmode $dir open
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}
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}
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}
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# This command is called whenever the user presses the (+) indicator or
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# double clicks on a directory whose mode is "open". It loads the files
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# inside that directory into the Tree widget.
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#
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# Note we didn't specify the -closecmd option for the Tree widget, so it
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# performs the default action when the user presses the (-) indicator or
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# double clicks on a directory whose mode is "close": hide all of its child
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# entries
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#
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proc DynTree:OpenDir {tree dir} {
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set PWD [pwd]
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set hlist [$tree subwidget hlist]
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if {[$hlist info children $dir] != {}} {
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# We have already loaded this directory. Let's just
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# show all the child entries
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#
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# Note: since we load the directory only once, it will not be
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# refreshed if the you add or remove files from this
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# directory.
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#
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foreach kid [$hlist info children $dir] {
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$hlist show entry $kid
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}
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return
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}
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if [catch {cd $dir}] {
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# We can't read that directory, better not do anything
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cd $PWD
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return
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}
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set files [lsort [glob -nocomplain *]]
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foreach f $files {
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if [file isdirectory $f] {
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if {$dir == "/"} {
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set subdir /$f
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} else {
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set subdir $dir/$f
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}
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DynTree:AddDir $tree $subdir
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} else {
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if {$dir == "/"} {
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set file /$f
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} else {
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set file $dir/$f
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}
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$hlist add $file -itemtype imagetext \
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-text $f -image [tix getimage file]
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}
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}
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cd $PWD
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}
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# This "if" statement makes it possible to run this script file inside or
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# outside of the main demo program "widget".
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#
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if {![info exists tix_demo_running]} {
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wm withdraw .
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set w .demo
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toplevel $w; wm transient $w ""
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RunSample $w
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bind $w <Destroy> exit
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}
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