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#!/usr/bin/env wish
#==============================================================================
# Demonstrates how to implement a multi-entry widget for 10-digit phone numbers.
#
# Copyright (c) 1999-2018 Csaba Nemethi (E-mail: csaba.nemethi@t-online.de)
#==============================================================================
package require mentry_tile
set title "Phone Number"
wm title . $title
#
# Add some entries to the Tk option database
#
source [file join [file dirname [info script]] option_tile.tcl]
#------------------------------------------------------------------------------
# phoneNumberMentry
#
# Creates a new mentry widget win that allows to display and edit 10-digit
# phone numbers. Sets the type attribute of the widget to PhoneNumber and
# returns the name of the newly created widget.
#------------------------------------------------------------------------------
proc phoneNumberMentry {win args} {
#
# Create a mentry widget consisting of two entries of width 3 and one of
# width 4, separated by "-" characters, and set its type to PhoneNumber
#
eval [list mentry::mentry $win] $args
$win configure -body {3 - 3 - 4}
$win attrib type PhoneNumber
#
# Allow only decimal digits in all entry children; use
# wcb::cbappend (or wcb::cbprepend) instead of wcb::callback
# in order to keep the wcb::checkEntryLen callback,
# registered by mentry::mentry for all entry children
#
for {set n 0} {$n < 3} {incr n} {
$win adjustentry $n "0123456789"
wcb::cbappend [$win entrypath $n] before insert wcb::checkStrForNum
}
return $win
}
#------------------------------------------------------------------------------
# putPhoneNumber
#
# Outputs the phone number num to the mentry widget win of type PhoneNumber.
# The phone number must be a string of length 10, consisting of decimal digits.
#------------------------------------------------------------------------------
proc putPhoneNumber {num win} {
#
# Check the syntax of num
#
if {[string length $num] != 10 || ![regexp {^[0-9]*$} $num]} {
return -code error "expected 10 decimal digits but got \"$num\""
}
#
# Check the widget and display the properly formatted phone number
#
checkIfPhoneNumberMentry $win
$win put 0 [string range $num 0 2] [string range $num 3 5] \
[string range $num 6 9]
}
#------------------------------------------------------------------------------
# getPhoneNumber
#
# Returns the phone number contained in the mentry widget win of type
# PhoneNumber.
#------------------------------------------------------------------------------
proc getPhoneNumber win {
#
# Check the widget
#
checkIfPhoneNumberMentry $win
#
# Generate an error if any entry child is empty or incomplete
#
for {set n 0} {$n < 3} {incr n} {
if {[$win isempty $n]} {
focus [$win entrypath $n]
return -code error EMPTY
}
if {![$win isfull $n]} {
focus [$win entrypath $n]
return -code error INCOMPL
}
}
#
# Return the phone number built from the
# values contained in the entry children
#
$win getarray strs
return $strs(0)$strs(1)$strs(2)
}
#------------------------------------------------------------------------------
# checkIfPhoneNumberMentry
#
# Generates an error if win is not a mentry widget of type PhoneNumber.
#------------------------------------------------------------------------------
proc checkIfPhoneNumberMentry win {
if {![winfo exists $win]} {
return -code error "bad window path name \"$win\""
}
if {[string compare [winfo class $win] "Mentry"] != 0 ||
[string compare [$win attrib type] "PhoneNumber"] != 0} {
return -code error \
"window \"$win\" is not a mentry widget for phone numbers"
}
}
#------------------------------------------------------------------------------
#
# Improve the window's appearance by using a tile
# frame as a container for the other widgets
#
ttk::frame .base
#
# Frame .base.f with a mentry displaying a phone number
#
ttk::frame .base.f
ttk::label .base.f.l -text "A mentry widget for phone numbers:"
phoneNumberMentry .base.f.me
pack .base.f.l .base.f.me
#
# Message strings corresponding to the values
# returned by getPhoneNumber on failure
#
array set msgs {
EMPTY "Field value missing"
INCOMPL "Incomplete field value"
}
#
# Button .base.get invoking the procedure getPhoneNumber
#
ttk::button .base.get -text "Get from mentry" -command {
if {[catch {
set num ""
set num [getPhoneNumber .base.f.me]
} result] != 0} {
bell
tk_messageBox -icon error -message $msgs($result) \
-title $title -type ok
}
}
#
# Label .base.num displaying the result of getPhoneNumber
#
ttk::label .base.num -textvariable num -background white
#
# Separator .base.sep and button .base.close
#
ttk::separator .base.sep -orient horizontal
ttk::button .base.close -text Close -command exit
#
# Manage the widgets
#
pack .base.close -side bottom -pady 10
pack .base.sep -side bottom -fill x
pack .base.f -padx 10 -pady 10
pack .base.get -padx 10
pack .base.num -padx 10 -pady 10
pack .base -expand yes -fill both
putPhoneNumber 1234567890 .base.f.me
focus [.base.f.me entrypath 0]
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