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Editing File: /usr/share/tk8.5/demos/widget

#!/bin/sh
# the next line restarts using wish \
exec wish8.5 "$0" ${1+"$@"}

# widget --
# This script demonstrates the various widgets provided by Tk, along with many
# of the features of the Tk toolkit. This file only contains code to generate
# the main window for the application, which invokes individual
# demonstrations. The code for the actual demonstrations is contained in
# separate ".tcl" files is this directory, which are sourced by this script as
# needed.

package require Tcl	8.5
package require Tk	8.5
package require msgcat
package require Ttk

eval destroy [winfo child .]
set tk_demoDirectory [file join [pwd] [file dirname [info script]]]
::msgcat::mcload $tk_demoDirectory
namespace import ::msgcat::mc
wm title . [mc "Widget Demonstration"]
if {[tk windowingsystem] eq "x11"} {
    # This won't work everywhere, but there's no other way in core Tk at the
    # moment to display a coloured icon.
    image create photo TclPowered \
	    -file [file join $tk_library images logo64.gif]
    wm iconwindow . [toplevel ._iconWindow]
    pack [label ._iconWindow.i -image TclPowered]
    wm iconname . [mc "tkWidgetDemo"]
}

if {"defaultFont" ni [font names]} {
    # TIP #145 defines some standard named fonts
    if {"TkDefaultFont" in [font names] && "TkFixedFont" in [font names]} {
        # FIX ME: the following technique of cloning the font to copy it works
        #         fine but means that if the system font is changed by Tk
        #         cannot update the copied font. font alias might be useful
        #         here -- or fix the app to use TkDefaultFont etc.
        font create mainFont   {*}[font configure TkDefaultFont]
        font create fixedFont  {*}[font configure TkFixedFont]
        font create boldFont   {*}[font configure TkDefaultFont] -weight bold
        font create titleFont  {*}[font configure TkDefaultFont] -weight bold
        font create statusFont {*}[font configure TkDefaultFont]
        font create varsFont   {*}[font configure TkDefaultFont]
	if {[tk windowingsystem] eq "aqua"} {
	    font configure titleFont -size 17
	}
    } else {
        font create mainFont   -family Helvetica -size 12
        font create fixedFont  -family Courier   -size 10
        font create boldFont   -family Helvetica -size 12 -weight bold
        font create titleFont  -family Helvetica -size 18 -weight bold
        font create statusFont -family Helvetica -size 10
        font create varsFont   -family Helvetica -size 14
    }
}

set widgetDemo 1
set font mainFont

image create photo ::img::refresh -format GIF -data {
    R0lGODlhEAAQAJEDAP///wAAACpnKv///yH5BAEAAAMALAAAAAAQABAAAAI63IKp
    xgcPH2ouwgBCw1HIxHCQ4F3hSJKmwZXqWrmWxj7lKJ2dndcon9EBUq+gz3brVXAR
    2tICU0gXBQA7
}

image create photo ::img::view -format GIF -data {
    R0lGODlhEAAQAKIHAP///wwMDAAAAMDAwNnZ2SYmJmZmZv///yH5BAEAAAcALAAA
    AAAQABAAAANMKLos90+ASamDRxJCgw9YVnlDOXiQBgRDBRgHKE6sW8QR3doPKK27
    yg33q/GIOhdg6OsEJzeZykiBSUcs06e56Xx6np8ScIkFGuhQAgA7
}

image create photo ::img::delete -format GIF -data {
    R0lGODlhEAAQAIABAIQAAP///yH5BAEAAAEALAAAAAAQABAAAAIjjI+pmwAc3HGy
    PUSvqYpuvWQg40FfSVacBa5nN6JYDI3mzRQAOw==
}

image create photo ::img::print -format GIF -data {
    R0lGODlhEAAQALMKAAAAAP///52VunNkl8C82Yl+qldBgq+pyrOzs1fYAP///wAA
    AAAAAAAAAAAAAAAAACH5BAEAAAoALAAAAAAQABAAAARGUMlJKwU4AztB+ODGeUiJ
    fGLlgeEYmGWQXmx7aXgmAUTv/74N4EAsGhOJg1DAbDqbwoJ0Sp0KB9isNis0eL/g
    ryhH5pgnEQA7
}

# Note that this is run through the message catalog! This is because this is
# actually an image of a word.
image create photo ::img::new -format GIF -data [mc {
    R0lGODlhHgAOALMPALMAANyIiOu7u8dEROaqqvru7sxVVeGZmbgREfXd3b0iItZ3
    d8IzM9FmZvDMzP///yH5BAEAAA8ALAAAAAAeAA4AAASa8MlJq7046827WVOCHEkw
    nANhUgJlEBIABJIwL3K+4IcUALCHjfbItYZDSgJgkBiYPmBMAUAkkLPKs/BAyLgM
    wAQwOAAY2ByCaw4QAFQSoDEePJ6DmU1xInYZTw5nOEFFdgVUelkVDTIMd3AKFGQ1
    MgI2AwEmQW8APZ0gdRONAks5nhIFVVxdAAkUAS2pAVwFl7ITB4UqHb0XEQA7
}]

#----------------------------------------------------------------
# The code below create the main window, consisting of a menu bar and a text
# widget that explains how to use the program, plus lists all of the demos as
# hypertext items.
#----------------------------------------------------------------

menu .menuBar -tearoff 0

if {[tk windowingsystem] ne "aqua"} {
    # This is a tk-internal procedure to make i18n easier
    ::tk::AmpMenuArgs .menuBar add cascade -label [mc "&File"] \
	    -menu .menuBar.file
    menu .menuBar.file -tearoff 0
    ::tk::AmpMenuArgs .menuBar.file add command -label [mc "&About..."] \
	    -command {tkAboutDialog} -accelerator [mc "<F1>"]
    bind . <F1> {tkAboutDialog}
    .menuBar.file add sep
    if {[string match win* [tk windowingsystem]]} {
	# Windows doesn't usually have a Meta key
	::tk::AmpMenuArgs .menuBar.file add command -label [mc "&Quit"] \
		-command {exit} -accelerator [mc "Ctrl+Q"]
	bind . <[mc "Control-q"]> {exit}
    } else {
	::tk::AmpMenuArgs .menuBar.file add command -label [mc "&Quit"] \
		-command {exit} -accelerator [mc "Meta-Q"]
	bind . <[mc "Meta-q"]> {exit}
    }
}

. configure -menu .menuBar

ttk::frame .statusBar
ttk::label .statusBar.lab -text "   " -anchor w
if {[tk windowingsystem] eq "aqua"} {
    ttk::separator .statusBar.sep
    pack .statusBar.sep -side top -expand yes -fill x -pady 0
}
pack .statusBar.lab -side left -padx 2 -expand yes -fill both
if {[tk windowingsystem] ne "aqua"} {
    ttk::sizegrip .statusBar.foo
    pack .statusBar.foo -side left -padx 2
}
pack .statusBar -side bottom -fill x -pady 2

set textheight 30
catch {
    set textheight [expr {
	([winfo screenheight .] * 0.7) /
	[font metrics mainFont -displayof . -linespace]
    }]
}

ttk::frame .textFrame
scrollbar .s -orient vertical -command {.t yview} -takefocus 1
pack .s -in .textFrame -side right -fill y
text .t -yscrollcommand {.s set} -wrap word -width 70 -height $textheight \
	-font mainFont -setgrid 1 -highlightthickness 0 \
	-padx 4 -pady 2 -takefocus 0
pack .t -in .textFrame -expand y -fill both -padx 1
pack .textFrame -expand yes -fill both
if {[tk windowingsystem] eq "aqua"} {
    pack configure .statusBar.lab -padx {10 18} -pady {4 6}
    pack configure .statusBar -pady 0
    .t configure -padx 10 -pady 0
}

# Create a bunch of tags to use in the text widget, such as those for section
# titles and demo descriptions. Also define the bindings for tags.

.t tag configure title -font titleFont
.t tag configure subtitle -font titleFont
.t tag configure bold  -font boldFont
if {[tk windowingsystem] eq "aqua"} {
    .t tag configure title -spacing1 8
    .t tag configure subtitle -spacing3 3
}

# We put some "space" characters to the left and right of each demo
# description so that the descriptions are highlighted only when the mouse
# cursor is right over them (but not when the cursor is to their left or
# right).
#
.t tag configure demospace -lmargin1 1c -lmargin2 1c

if {[winfo depth .] == 1} {
    .t tag configure demo -lmargin1 1c -lmargin2 1c \
	-underline 1
    .t tag configure visited -lmargin1 1c -lmargin2 1c \
	-underline 1
    .t tag configure hot -background black -foreground white
} else {
    .t tag configure demo -lmargin1 1c -lmargin2 1c \
	-foreground blue -underline 1
    .t tag configure visited -lmargin1 1c -lmargin2 1c \
	-foreground #303080 -underline 1
    .t tag configure hot -foreground red -underline 1
}
.t tag bind demo <ButtonRelease-1> {
    invoke [.t index {@%x,%y}]
}
set lastLine ""
.t tag bind demo <Enter> {
    set lastLine [.t index {@%x,%y linestart}]
    .t tag add hot "$lastLine +1 chars" "$lastLine lineend -1 chars"
    .t config -cursor [::ttk::cursor link]
    showStatus [.t index {@%x,%y}]
}
.t tag bind demo <Leave> {
    .t tag remove hot 1.0 end
    .t config -cursor [::ttk::cursor text]
    .statusBar.lab config -text ""
}
.t tag bind demo <Motion> {
    set newLine [.t index {@%x,%y linestart}]
    if {$newLine ne $lastLine} {
	.t tag remove hot 1.0 end
	set lastLine $newLine

set tags [.t tag names {@%x,%y}]
	set i [lsearch -glob $tags demo-*]
	if {$i >= 0} {
	    .t tag add hot "$lastLine +1 chars" "$lastLine lineend -1 chars"
	}
    }
    showStatus [.t index {@%x,%y}]
}

##############################################################################
# Create the text for the text widget.

# addFormattedText --
#
#	Add formatted text (but not hypertext) to the text widget after first
#	passing it through the message catalog to allow for localization.
#	Lines starting with @@ are formatting directives (insert title, insert
#	demo hyperlink, begin newline, or change style) and all other lines
#	are literal strings to be inserted. Substitutions are performed,
#	allowing processing pieces through the message catalog. Blank lines
#	are ignored.
#
proc addFormattedText {formattedText} {
    set style normal
    set isNL 1
    set demoCount 0
    set new 0
    foreach line [split $formattedText \n] {
	set line [string trim $line]
	if {$line eq ""} {
	    continue
	}
	if {[string match @@* $line]} {
	    set data [string range $line 2 end]
	    set key [lindex $data 0]
	    set values [lrange $data 1 end]
	    switch -exact -- $key {
		title {
		    .t insert end [mc $values]\n title \n normal
		}
		newline {
		    .t insert end \n $style
		    set isNL 1
		}
		subtitle {
		    .t insert end "\n" {} [mc $values] subtitle \
			    " \n " demospace
		    set demoCount 0
		}
		demo {
		    set description [lassign $values name]
		    .t insert end "[incr demoCount]. [mc $description]" \
			    [list demo demo-$name]
		    if {$new} {
			.t image create end -image ::img::new -padx 5
			set new 0
		    }
		    .t insert end " \n " demospace
		}
		new {
		    set new 1
		}
		default {
		    set style $key
		}
	    }
	    continue
	}
	if {!$isNL} {
	    .t insert end " " $style
	}
	set isNL 0
	.t insert end [mc $line] $style
    }
}

addFormattedText {
    @@title	Tk Widget Demonstrations

This application provides a front end for several short scripts
    that demonstrate what you can do with Tk widgets.  Each of the
    numbered lines below describes a demonstration; you can click on
    it to invoke the demonstration.  Once the demonstration window
    appears, you can click the
    @@bold
    See Code
    @@normal
    button to see the Tcl/Tk code that created the demonstration.  If
    you wish, you can edit the code and click the
    @@bold
    Rerun Demo
    @@normal
    button in the code window to reinvoke the demonstration with the
    modified code.
    @@newline

@@subtitle	Labels, buttons, checkbuttons, and radiobuttons
    @@demo label	Labels (text and bitmaps)
    @@demo unicodeout	Labels and UNICODE text
    @@demo button	Buttons
    @@demo check	Check-buttons (select any of a group)
    @@demo radio	Radio-buttons (select one of a group)
    @@demo puzzle	A 15-puzzle game made out of buttons
    @@demo icon		Iconic buttons that use bitmaps
    @@demo image1	Two labels displaying images
    @@demo image2	A simple user interface for viewing images
    @@demo labelframe	Labelled frames
    @@new
    @@demo ttkbut	The simple Themed Tk widgets

@@subtitle	Listboxes and Trees
    @@demo states	The 50 states
    @@demo colors	Colors: change the color scheme for the application
    @@demo sayings	A collection of famous and infamous sayings
    @@new
    @@demo mclist	A multi-column list of countries
    @@new
    @@demo tree		A directory browser tree

@@subtitle	Entries, Spin-boxes and Combo-boxes
    @@demo entry1	Entries without scrollbars
    @@demo entry2	Entries with scrollbars
    @@demo entry3	Validated entries and password fields
    @@demo spin		Spin-boxes
    @@new
    @@demo combo	Combo-boxes
    @@demo form		Simple Rolodex-like form

@@subtitle	Text
    @@demo text		Basic editable text
    @@demo style	Text display styles
    @@demo bind		Hypertext (tag bindings)
    @@demo twind	A text widget with embedded windows and other features
    @@demo search	A search tool built with a text widget
    @@new
    @@demo textpeer	Peering text widgets

@@subtitle	Canvases
    @@demo items	The canvas item types
    @@demo plot		A simple 2-D plot
    @@demo ctext	Text items in canvases
    @@demo arrow	An editor for arrowheads on canvas lines
    @@demo ruler	A ruler with adjustable tab stops
    @@demo floor	A building floor plan
    @@demo cscroll	A simple scrollable canvas
    @@new
    @@demo knightstour  A Knight's tour of the chess board

@@subtitle	Scales and Progress Bars
    @@demo hscale	Horizontal scale
    @@demo vscale	Vertical scale
    @@new
    @@demo ttkscale	Themed scale linked to a label with traces
    @@new
    @@demo ttkprogress	Progress bar

@@subtitle	Paned Windows and Notebooks
    @@demo paned1	Horizontal paned window
    @@demo paned2	Vertical paned window
    @@new
    @@demo ttkpane	Themed nested panes
    @@new
    @@demo ttknote	Notebook widget

@@subtitle	Menus and Toolbars
    @@demo menu		Menus and cascades (sub-menus)
    @@demo menubu	Menu-buttons
    @@new
    @@demo ttkmenu	Themed menu buttons
    @@new
    @@demo toolbar	Themed toolbar

@@subtitle	Common Dialogs
    @@demo msgbox	Message boxes
    @@demo filebox	File selection dialog
    @@demo clrpick	Color picker

@@subtitle	Animation
    @@new
    @@demo anilabel	Animated labels
    @@new
    @@demo aniwave	Animated wave
    @@new
    @@demo pendulum	Pendulum simulation
    @@new
    @@demo goldberg	A celebration of Rube Goldberg

@@subtitle	Miscellaneous
    @@demo bitmap	The built-in bitmaps
    @@demo dialog1	A dialog box with a local grab
    @@demo dialog2	A dialog box with a global grab
}

##############################################################################

.t configure -state disabled
focus .s

# addSeeDismiss --
# Add "See Code" and "Dismiss" button frame, with optional "See Vars"
#
# Arguments:
# w -		The name of the frame to use.

proc addSeeDismiss {w show {vars {}} {extra {}}} {
    ## See Code / Dismiss buttons
    ttk::frame $w
    ttk::separator $w.sep
    #ttk::frame $w.sep -height 2 -relief sunken
    grid $w.sep -columnspan 4 -row 0 -sticky ew -pady 2
    ttk::button $w.dismiss -text [mc "Dismiss"] \
	-image ::img::delete -compound left \
	-command [list destroy [winfo toplevel $w]]
    ttk::button $w.code -text [mc "See Code"] \
	-image ::img::view -compound left \
	-command [list showCode $show]
    set buttons [list x $w.code $w.dismiss]
    if {[llength $vars]} {
	ttk::button $w.vars -text [mc "See Variables"] \
	    -image ::img::view -compound left \
	    -command [concat [list showVars $w.dialog] $vars]
	set buttons [linsert $buttons 1 $w.vars]
    }
    if {$extra ne ""} {
	set buttons [linsert $buttons 1 [uplevel 1 $extra]]
    }
    grid {*}$buttons -padx 4 -pady 4
    grid columnconfigure $w 0 -weight 1
    if {[tk windowingsystem] eq "aqua"} {
	foreach b [lrange $buttons 1 end] {$b configure -takefocus 0}
	grid configure $w.sep -pady 0
	grid configure {*}$buttons -pady {10 12}
	grid configure [lindex $buttons 1] -padx {16 4}
	grid configure [lindex $buttons end] -padx {4 18}
    }
    return $w
}

# positionWindow --
# This procedure is invoked by most of the demos to position a new demo
# window.
#
# Arguments:
# w -		The name of the window to position.

proc positionWindow w {
    wm geometry $w +300+300
}

# showVars --
# Displays the values of one or more variables in a window, and updates the
# display whenever any of the variables changes.
#
# Arguments:
# w -		Name of new window to create for display.
# args -	Any number of names of variables.

proc showVars {w args} {
    catch {destroy $w}
    toplevel $w
    if {[tk windowingsystem] eq "x11"} {wm attributes $w -type dialog}
    wm title $w [mc "Variable values"]

set b [ttk::frame $w.frame]
    grid $b -sticky news
    set f [ttk::labelframe $b.title -text [mc "Variable values:"]]
    foreach var $args {
	ttk::label $f.n$var -text "$var:" -anchor w
	ttk::label $f.v$var -textvariable $var -anchor w
	grid $f.n$var $f.v$var -padx 2 -pady 2 -sticky w
    }
    ttk::button $b.ok -text [mc "OK"] \
	-command [list destroy $w] -default active
    bind $w <Return> [list $b.ok invoke]
    bind $w <Escape> [list $b.ok invoke]

grid $f -sticky news -padx 4
    grid $b.ok -sticky e -padx 4 -pady {6 4}
    if {[tk windowingsystem] eq "aqua"} {
	$b.ok configure -takefocus 0
	grid configure $b.ok -pady {10 12} -padx {16 18}
	grid configure $f -padx 10 -pady {10 0}
    }
    grid columnconfig $f 1 -weight 1
    grid rowconfigure $f 100 -weight 1
    grid columnconfig $b 0 -weight 1
    grid rowconfigure $b 0 -weight 1
    grid columnconfig $w 0 -weight 1
    grid rowconfigure $w 0 -weight 1
}

# invoke --
# This procedure is called when the user clicks on a demo description. It is
# responsible for invoking the demonstration.
#
# Arguments:
# index -	The index of the character that the user clicked on.

proc invoke index {
    global tk_demoDirectory
    set tags [.t tag names $index]
    set i [lsearch -glob $tags demo-*]
    if {$i < 0} {
	return
    }
    set cursor [.t cget -cursor]
    .t configure -cursor [::ttk::cursor busy]
    update
    set demo [string range [lindex $tags $i] 5 end]
    uplevel 1 [list source [file join $tk_demoDirectory $demo.tcl]]
    update
    .t configure -cursor $cursor

.t tag add visited "$index linestart +1 chars" "$index lineend -1 chars"
}

# showStatus --
#
#	Show the name of the demo program in the status bar. This procedure is
#	called when the user moves the cursor over a demo description.
#
proc showStatus index {
    set tags [.t tag names $index]
    set i [lsearch -glob $tags demo-*]
    set cursor [.t cget -cursor]
    if {$i < 0} {
	.statusBar.lab config -text " "
	set newcursor [::ttk::cursor text]
    } else {
	set demo [string range [lindex $tags $i] 5 end]
	.statusBar.lab config -text [mc "Run the \"%s\" sample program" $demo]
	set newcursor [::ttk::cursor link]
    }
    if {$cursor ne $newcursor} {
	.t config -cursor $newcursor
    }
}

# evalShowCode --
#
# Arguments:
# w -		Name of text widget containing code to eval

proc evalShowCode {w} {
    set code [$w get 1.0 end-1c]
    uplevel #0 $code
}

# showCode --
# This procedure creates a toplevel window that displays the code for a
# demonstration and allows it to be edited and reinvoked.
#
# Arguments:
# w -		The name of the demonstration's window, which can be used to
#		derive the name of the file containing its code.

proc showCode w {
    global tk_demoDirectory
    set file [string range $w 1 end].tcl
    set top .code
    if {![winfo exists $top]} {
	toplevel $top
	if {[tk windowingsystem] eq "x11"} {wm attributes $top -type dialog}

set t [frame $top.f]
	set text [text $t.text -font fixedFont -height 24 -wrap word \
		      -xscrollcommand [list $t.xscroll set] \
		      -yscrollcommand [list $t.yscroll set] \
		      -setgrid 1 -highlightthickness 0 -pady 2 -padx 3]
	scrollbar $t.xscroll -command [list $t.text xview] -orient horizontal
	scrollbar $t.yscroll -command [list $t.text yview] -orient vertical

grid $t.text $t.yscroll -sticky news
	#grid $t.xscroll
	grid rowconfigure $t 0 -weight 1
	grid columnconfig $t 0 -weight 1

set btns [ttk::frame $top.btns]
	ttk::separator $btns.sep
	grid $btns.sep -columnspan 4 -row 0 -sticky ew -pady 2
	ttk::button $btns.dismiss -text [mc "Dismiss"] \
	    -default active -command [list destroy $top] \
	    -image ::img::delete -compound left
	ttk::button $btns.print   -text [mc "Print Code"] \
	    -command [list printCode $text $file] \
	    -image ::img::print -compound left
	ttk::button $btns.rerun   -text [mc "Rerun Demo"] \
	    -command [list evalShowCode $text] \
	    -image ::img::refresh -compound left
	set buttons [list x $btns.rerun $btns.print $btns.dismiss]
	grid {*}$buttons -padx 4 -pady 4
	grid columnconfigure $btns 0 -weight 1
	if {[tk windowingsystem] eq "aqua"} {
	    foreach b [lrange $buttons 1 end] {$b configure -takefocus 0}
	    grid configure $btns.sep -pady 0
	    grid configure {*}$buttons -pady {10 12}
	    grid configure [lindex $buttons 1] -padx {16 4}
	    grid configure [lindex $buttons end] -padx {4 18}
	}
	grid $t    -sticky news
	grid $btns -sticky ew
	grid rowconfigure $top 0 -weight 1
	grid columnconfig $top 0 -weight 1

bind $top <Return> {
	    if {[winfo class %W] ne "Text"} { .code.btns.dismiss invoke }
	}
	bind $top <Escape> [bind $top <Return>]
    } else {
	wm deiconify $top
	raise $top
    }
    wm title $top [mc "Demo code: %s" [file join $tk_demoDirectory $file]]
    wm iconname $top $file
    set id [open [file join $tk_demoDirectory $file]]
    $top.f.text delete 1.0 end
    $top.f.text insert 1.0 [read $id]
    $top.f.text mark set insert 1.0
    close $id
}

# printCode --
# Prints the source code currently displayed in the See Code dialog. Much
# thanks to Arjen Markus for this.
#
# Arguments:
# w -		Name of text widget containing code to print
# file -		Name of the original file (implicitly for title)

proc printCode {w file} {
    set code [$w get 1.0 end-1c]

set dir "."
    if {[info exists ::env(HOME)]} {
	set dir "$::env(HOME)"
    }
    if {[info exists ::env(TMP)]} {
	set dir $::env(TMP)
    }
    if {[info exists ::env(TEMP)]} {
	set dir $::env(TEMP)
    }

set filename [file join $dir "tkdemo-$file"]
    set outfile [open $filename "w"]
    puts $outfile $code
    close $outfile

switch -- $::tcl_platform(platform) {
	unix {
	    if {[catch {exec lp -c $filename} msg]} {
		tk_messageBox -title "Print spooling failure" \
			-message "Print spooling probably failed: $msg"
	    }
	}
	windows {
	    if {[catch {PrintTextWin32 $filename} msg]} {
		tk_messageBox -title "Print spooling failure" \
			-message "Print spooling probably failed: $msg"
	    }
	}
	default {
	    tk_messageBox -title "Operation not Implemented" \
		    -message "Wow! Unknown platform: $::tcl_platform(platform)"
	}
    }

#
    # Be careful to throw away the temporary file in a gentle manner ...
    #
    if {[file exists $filename]} {
	catch {file delete $filename}
    }
}

# PrintTextWin32 --
#    Print a file under Windows using all the "intelligence" necessary
#
# Arguments:
# filename -		Name of the file
#
# Note:
# Taken from the Wiki page by Keith Vetter, "Printing text files under
# Windows".
# Note:
# Do not execute the command in the background: that way we can dispose of the
# file smoothly.
#
proc PrintTextWin32 {filename} {
    package require registry
    set app [auto_execok notepad.exe]
    set pcmd "$app /p %1"
    catch {
	set app [registry get {HKEY_CLASSES_ROOT\.txt} {}]
	set pcmd [registry get \
		{HKEY_CLASSES_ROOT\\$app\\shell\\print\\command} {}]
    }

regsub -all {%1} $pcmd $filename pcmd
    puts $pcmd

regsub -all {\\} $pcmd {\\\\} pcmd
    set command "[auto_execok start] /min $pcmd"
    eval exec $command
}

# tkAboutDialog --
#
#	Pops up a message box with an "about" message
#
proc tkAboutDialog {} {
    tk_messageBox -icon info -type ok -title [mc "About Widget Demo"] \
	    -message [mc "Tk widget demonstration application"] -detail \
"[mc {Copyright (c) %s} {1996-1997 Sun Microsystems, Inc.}]
[mc {Copyright (c) %s} {1997-2000 Ajuba Solutions, Inc.}]
[mc {Copyright (c) %s} {2001-2007 Donal K. Fellows}]
[mc {Copyright (c) %s} {2002-2007 Daniel A. Steffen}]"
}

# Local Variables:
# mode: tcl
# End:

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