openmedialibrary_platform_w.../tcl/tix8.4.3/demos/samples/EFileDlg.tcl

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# -*-mode: tcl; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
# $Id: EFileDlg.tcl,v 1.3 2001/12/09 05:31:07 idiscovery Exp $
#
# 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 tixExFileSelectDialog widget --
# This is a neat file selection dialog that will make your apps look
# real good!
#
proc RunSample {w} {
# Create an entry for the user to input a filename. If he can't
# bother to type in the name, he can press the "Browse ..." button
# and call up the file dialog
#
frame $w.top -border 1 -relief raised
tixLabelEntry $w.top.ent -label "Select A File:" -labelside top \
-options {
entry.width 25
entry.textVariable demo_efdlg_filename
label.anchor w
}
bind [$w.top.ent subwidget entry] <Return> "efdlg:okcmd $w"
uplevel #0 set demo_efdlg_filename {}
button $w.top.btn -text "Browse ..." -command "efdlg:browse"
pack $w.top.ent -side left -expand yes -fill x -anchor s -padx 4 -pady 4
pack $w.top.btn -side left -anchor s -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 "efdlg: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
}
# Pop up a file selection dialog
#
proc efdlg:browse {} {
# [Hint]
# The best way to use an ExFileSelectDialog is not to create one yourself
# but to call the command "tix filedialog". This command creates one file
# dialog box that is shared by different parts of the application.
# This way, your application can save resources because it doesn't
# need to create a lot of file dialog boxes even if it needs to input
# file names at a lot of different occasions.
#
set dialog [tix filedialog tixExFileSelectDialog]
$dialog config -command efdlg:select_file
$dialog subwidget fsbox config -filetypes {
{{*} {* -- All files}}
{{*.txt} {*.txt -- Text files}}
{{*.c} {*.c -- C source files}}
}
wm transient $dialog ""
$dialog popup
}
proc efdlg:select_file {file} {
global demo_efdlg_filename
set demo_efdlg_filename $file
}
proc efdlg:okcmd {w} {
global demo_efdlg_filename
if {$demo_efdlg_filename != {}} {
tixDemo:Status "You have selected the file $demo_efdlg_filename"
} else {
tixDemo:Status "You haven't selected any file"
}
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; wm transient $w ""
RunSample $w
bind $w <Destroy> exit
}