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# Tix Demostration Program

#

# This sample program is structured in such a way so that it can be

# executed from the Tix demo program "widget": it must have a

# procedure called "RunSample". It should also have the "if" statment

# at the end of this file so that it can be run as a standalone

# program using tixwish.

# This file demonstrates the use of the tixDirList widget -- you can

# use it for the user to select a directory. For example, an installation

# program can use the tixDirList widget to ask the user to select the

# installation directory for an application.

#

proc RunSample {w} {

    # Create the tixDirTree and the tixLabelEntry widgets on the on the top

    # of the dialog box

    #

    frame $w.top -border 1 -relief raised

    # Create the DirTree widget. By default it will show the current

    # directory (returned by [pwd])

    #

    #

    tixDirTree $w.top.dir -browsecmd "dtree:browse $w.top.ent"

    # When the user presses the ".." button, the selected directory

    # is "transferred" into the entry widget

    #

    # We use a LabelEntry to hold the installation directory. The user

    # can choose from the DirTree widget, or he can type in the directory 

    # manually

    #

    tixLabelEntry $w.top.ent -label "Installation Directory:" -labelside top \

        -options {

            entry.width 25

            entry.textVariable demo_dtree_dir

            label.anchor w

        }

    bind [$w.top.ent subwidget entry] <Return> "dtree:okcmd $w"

    uplevel #0 set demo_dtree_dir [list [pwd]]

    pack $w.top.dir -side left -expand yes -fill both -padx 4 -pady 4

    pack $w.top.ent -side left -fill x -anchor c -padx 4 -pady 4

    # Use a ButtonBox to hold the buttons.

    #

    tixButtonBox $w.box -orientation horizontal

    $w.box add ok     -text Ok     -underline 0 -command "dtree:okcmd $w" \

        -width 6

    $w.box add cancel -text Cancel -underline 0 -command "destroy $w" \

        -width 6

    pack $w.box -side bottom -fill x

    pack $w.top -side top -fill both -expand yes

}

proc dtree:browse {ent filename} {

    uplevel #0 set demo_dtree_dir $filename

}

proc dtree:copy_name {w} {

    global demo_dtree_dir

    set demo_dtree_dir [$w cget -value]

}

proc dtree:okcmd {w} {

    global demo_dtree_dir

    puts "You have selected the directory $demo_dtree_dir"

    destroy $w

}

# This "if" statement makes it possible to run this script file inside or

# outside of the main demo program "widget".

#

if {![info exists tix_demo_running]} {

    wm withdraw .

    set w .demo

    toplevel $w

    RunSample $w

    bind .demo <Destroy> "exit"

}