#!/bin/sh # the next line restarts using wish \ exec wish "$0" "$@" # 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. # # RCS: @(#) $Id: widget,v 1.9.2.2 2006/09/11 14:41:16 das Exp $ eval destroy [winfo child .] wm title . "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 . "tkWidgetDemo" } array set widgetFont { main {Helvetica 12} bold {Helvetica 12 bold} title {Helvetica 18 bold} status {Helvetica 10} vars {Helvetica 14} } set widgetDemo 1 set font $widgetFont(main) #---------------------------------------------------------------- # 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 # On the Mac use the special .apple menu for the about item if {[tk windowingsystem] eq "classic" || [tk windowingsystem] eq "aqua"} { .menuBar add cascade -menu .menuBar.apple menu .menuBar.apple -tearoff 0 .menuBar.apple add command -label "About..." -command "aboutBox" } else { .menuBar add cascade -menu .menuBar.file -label "File" -underline 0 menu .menuBar.file -tearoff 0 .menuBar.file add command -label "About..." -command "aboutBox" \ -underline 0 -accelerator "" .menuBar.file add sep .menuBar.file add command -label "Quit" -command "exit" -underline 0 \ -accelerator "Meta-Q" bind . aboutBox } . configure -menu .menuBar frame .statusBar label .statusBar.lab -text " " -relief sunken -bd 1 \ -font $widgetFont(status) -anchor w label .statusBar.foo -width 8 -relief sunken -bd 1 \ -font $widgetFont(status) -anchor w pack .statusBar.lab -side left -padx 2 -expand yes -fill both pack .statusBar.foo -side left -padx 2 pack .statusBar -side bottom -fill x -pady 2 frame .textFrame scrollbar .s -orient vertical -command {.t yview} -highlightthickness 0 \ -takefocus 1 pack .s -in .textFrame -side right -fill y text .t -yscrollcommand {.s set} -wrap word -width 70 -height 30 \ -font $widgetFont(main) -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 # 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 $widgetFont(title) .t tag configure bold -font $widgetFont(bold) # We put some "space" characters to the left and right of each demo description # so that the descriptions are highlighted only when the mouse cursor # is right over them (but not when the cursor is to their left or right) # .t tag configure demospace -lmargin1 1c -lmargin2 1c if {[winfo depth .] == 1} { .t tag configure demo -lmargin1 1c -lmargin2 1c \ -underline 1 .t tag configure visited -lmargin1 1c -lmargin2 1c \ -underline 1 .t tag configure hot -background black -foreground white } else { .t tag configure demo -lmargin1 1c -lmargin2 1c \ -foreground blue -underline 1 .t tag configure visited -lmargin1 1c -lmargin2 1c \ -foreground #303080 -underline 1 .t tag configure hot -foreground red -underline 1 } .t tag bind demo { invoke [.t index {@%x,%y}] } set lastLine "" .t tag bind demo { set lastLine [.t index {@%x,%y linestart}] .t tag add hot "$lastLine +1 chars" "$lastLine lineend -1 chars" .t config -cursor hand2 showStatus [.t index {@%x,%y}] } .t tag bind demo { .t tag remove hot 1.0 end .t config -cursor xterm .statusBar.lab config -text "" } .t tag bind demo { set newLine [.t index {@%x,%y linestart}] if {[string compare $newLine $lastLine] != 0} { .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. proc addDemoSection {title demos} { .t insert end "\n" {} $title title " \n " demospace set num 0 foreach {name description} $demos { .t insert end "[incr num]. $description." [list demo demo-$name] .t insert end " \n " demospace } } .t insert end "Tk Widget Demonstrations\n" title .t insert end "\nThis 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" bold " button to see the\ Tcl/Tk code that created the demonstration. If you wish, you can\ edit the code and click the " {} "Rerun Demo" bold " button in the\ code window to reinvoke the demonstration with the modified code.\n" addDemoSection "Labels, buttons, checkbuttons, and radiobuttons" { label "Labels (text and bitmaps)" unicodeout "Labels and UNICODE text" button "Buttons" check "Check-buttons (select any of a group)" radio "Radio-buttons (select one of a group)" puzzle "A 15-puzzle game made out of buttons" icon "Iconic buttons that use bitmaps" image1 "Two labels displaying images" image2 "A simple user interface for viewing images" labelframe "Labelled frames" } addDemoSection "Listboxes" { states "The 50 states" colors "Colors: change the color scheme for the application" sayings "A collection of famous and infamous sayings" } addDemoSection "Entries and Spin-boxes" { entry1 "Entries without scrollbars" entry2 "Entries with scrollbars" entry3 "Validated entries and password fields" spin "Spin-boxes" form "Simple Rolodex-like form" } addDemoSection "Text" { text "Basic editable text" style "Text display styles" bind "Hypertext (tag bindings)" twind "A text widget with embedded windows" search "A search tool built with a text widget" } addDemoSection "Canvases" { items "The canvas item types" plot "A simple 2-D plot" ctext "Text items in canvases" arrow "An editor for arrowheads on canvas lines" ruler "A ruler with adjustable tab stops" floor "A building floor plan" cscroll "A simple scrollable canvas" } addDemoSection "Scales" { hscale "Horizontal scale" vscale "Vertical scale" } addDemoSection "Paned Windows" { paned1 "Horizontal paned window" paned2 "Vertical paned window" } addDemoSection "Menus" { menu "Menus and cascades (sub-menus)" menubu "Menu-buttons" } addDemoSection "Common Dialogs" { msgbox "Message boxes" filebox "File selection dialog" clrpick "Color picker" } addDemoSection "Miscellaneous" { bitmap "The built-in bitmaps" dialog1 "A dialog box with a local grab" dialog2 "A dialog box with a global grab" } .t configure -state disabled focus .s # 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} { global widgetFont catch {destroy $w} toplevel $w wm title $w "Variable values" label $w.title -text "Variable values:" -width 20 -anchor center \ -font $widgetFont(vars) pack $w.title -side top -fill x set len 1 foreach i $args { if {[string length $i] > $len} { set len [string length $i] } } foreach i $args { frame $w.$i label $w.$i.name -text "$i: " -width [expr $len + 2] -anchor w label $w.$i.value -textvar $i -anchor w pack $w.$i.name -side left pack $w.$i.value -side left -expand 1 -fill x pack $w.$i -side top -anchor w -fill x } button $w.ok -text OK -command "destroy $w" -default active bind $w "tkButtonInvoke $w.ok" pack $w.ok -side bottom -pady 2 } # 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_library set tags [.t tag names $index] set i [lsearch -glob $tags demo-*] if {$i < 0} { return } set cursor [.t cget -cursor] .t configure -cursor watch update set demo [string range [lindex $tags $i] 5 end] uplevel [list source [file join $tk_library demos $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 { global tk_library 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 xterm } else { set demo [string range [lindex $tags $i] 5 end] .statusBar.lab config -text "Run the \"$demo\" sample program" set newcursor hand2 } if [string compare $cursor $newcursor] { .t config -cursor $newcursor } } # 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_library set file [string range $w 1 end].tcl if ![winfo exists .code] { toplevel .code frame .code.buttons pack .code.buttons -side bottom -fill x button .code.buttons.dismiss -text Dismiss \ -default active -command "destroy .code" button .code.buttons.rerun -text "Rerun Demo" -command { eval [.code.text get 1.0 end] } pack .code.buttons.dismiss .code.buttons.rerun -side left \ -expand 1 -pady 2 frame .code.frame pack .code.frame -expand yes -fill both -padx 1 -pady 1 text .code.text -height 40 -wrap word\ -xscrollcommand ".code.xscroll set" \ -yscrollcommand ".code.yscroll set" \ -setgrid 1 -highlightthickness 0 -pady 2 -padx 3 scrollbar .code.xscroll -command ".code.text xview" \ -highlightthickness 0 -orient horizontal scrollbar .code.yscroll -command ".code.text yview" \ -highlightthickness 0 -orient vertical grid .code.text -in .code.frame -padx 1 -pady 1 \ -row 0 -column 0 -rowspan 1 -columnspan 1 -sticky news grid .code.yscroll -in .code.frame -padx 1 -pady 1 \ -row 0 -column 1 -rowspan 1 -columnspan 1 -sticky news # grid .code.xscroll -in .code.frame -padx 1 -pady 1 \ # -row 1 -column 0 -rowspan 1 -columnspan 1 -sticky news grid rowconfig .code.frame 0 -weight 1 -minsize 0 grid columnconfig .code.frame 0 -weight 1 -minsize 0 } else { wm deiconify .code raise .code } wm title .code "Demo code: [file join $tk_library demos $file]" wm iconname .code $file set id [open [file join $tk_library demos $file]] .code.text delete 1.0 end .code.text insert 1.0 [read $id] .code.text mark set insert 1.0 close $id } # aboutBox -- # # Pops up a message box with an "about" message # proc aboutBox {} { tk_messageBox -icon info -type ok -title "About Widget Demo" -message \ "Tk widget demonstration Copyright (c) 1996-1997 Sun Microsystems, Inc. Copyright (c) 1997-2000 Ajuba Solutions, Inc. Copyright (c) 2001-2002 Donal K. Fellows" } # Local Variables: # mode: tcl # End: