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# the next line restarts using wish \
exec wish "$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

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 {

image create photo ::img::view -format GIF -data {

image create photo ::img::delete -format GIF -data {

image create photo ::img::print -format GIF -data {

# 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 {

# 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"} {
    pack -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
ttk::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 ""} {
	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 $key
	if {!$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
    See Code
    button to see the Tcl/Tk code that created the demonstration.  If
    you wish, you can edit the code and click the
    Rerun Demo
    button in the code window to reinvoke the demonstration with the
    modified code.

    @@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
    @@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
    @@demo mclist	A multi-column list of countries
    @@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
    @@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
    @@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
    @@demo knightstour  A Knight's tour of the chess board

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

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

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

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

    @@subtitle	Animation
    @@demo anilabel	Animated labels
    @@demo aniwave	Animated wave
    @@demo pendulum	Pendulum simulation
    @@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} {
    set cursor [.t cget -cursor]
    .t configure -cursor [::ttk::cursor busy]
    set demo [string range [lindex $tags $i] 5 end]
    uplevel 1 [list source [file join $tk_demoDirectory $demo.tcl]]
    .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]
	ttk::scrollbar $t.xscroll -command [list $t.text xview] \
	    -orient horizontal
	ttk::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 \u00a9 %s" {1996-1997 Sun Microsystems, Inc.}]
[mc "Copyright \u00a9 %s" {1997-2000 Ajuba Solutions, Inc.}]
[mc "Copyright \u00a9 %s" {2001-2009 Donal K. Fellows}]
[mc "Copyright \u00a9 %s" {2002-2007 Daniel A. Steffen}]"

# Local Variables:
# mode: tcl
# End: