lib/tk8.4/demos/menu.tcl

   1 # menu.tcl --
   2 #
   3 # This demonstration script creates a window with a bunch of menus
   4 # and cascaded menus using menubars.
   5 #
   6 # RCS: @(#) $Id: menu.tcl,v 1.4 2002/08/31 06:12:28 das Exp $
   7
   8 if {![info exists widgetDemo]} {
   9     error "This script should be run from the \"widget\" demo."
  10 }
  11
  12 set w .menu
  13 catch {destroy $w}
  14 toplevel $w
  15 wm title $w "Menu Demonstration"
  16 wm iconname $w "menu"
  17 positionWindow $w
  18
  19 label $w.msg -font $font -wraplength 4i -justify left
  20 if {[string equal [tk windowingsystem] "classic"]
  21         || [string equal [tk windowingsystem] "aqua"]} {
  22     $w.msg configure -text "This window contains a menubar with cascaded menus.  You can invoke entries with an accelerator by typing Command+x, where \"x\" is the character next to the command key symbol. The rightmost menu can be torn off into a palette by dragging outside of its bounds and releasing the mouse."
  23 } else {
  24     $w.msg configure -text "This window contains a menubar with cascaded menus.  You can post a menu from the keyboard by typing Alt+x, where \"x\" is the character underlined on the menu.  You can then traverse among the menus using the arrow keys.  When a menu is posted, you can invoke the current entry by typing space, or you can invoke any entry by typing its underlined character.  If a menu entry has an accelerator, you can invoke the entry without posting the menu just by typing the accelerator. The rightmost menu can be torn off into a palette by selecting the first item in the menu."
  25 }
  26 pack $w.msg -side top
  27
  28 set menustatus "    "
  29 frame $w.statusBar
  30 label $w.statusBar.label -textvariable menustatus -relief sunken -bd 1 -font "Helvetica 10" -anchor w
  31 pack $w.statusBar.label -side left -padx 2 -expand yes -fill both
  32 pack $w.statusBar -side bottom -fill x -pady 2
  33
  34 frame $w.buttons
  35 pack $w.buttons -side bottom -fill x -pady 2m
  36 button $w.buttons.dismiss -text Dismiss -command "destroy $w"
  37 button $w.buttons.code -text "See Code" -command "showCode $w"
  38 pack $w.buttons.dismiss $w.buttons.code -side left -expand 1
  39
  40 menu $w.menu -tearoff 0
  41
  42 set m $w.menu.file
  43 menu $m -tearoff 0
  44 $w.menu add cascade -label "File" -menu $m -underline 0
  45 $m add command -label "Open..." -command {error "this is just a demo: no action has been defined for the \"Open...\" entry"}
  46 $m add command -label "New" -command {error "this is just a demo: no action has been defined for the \"New\" entry"}
  47 $m add command -label "Save" -command {error "this is just a demo: no action has been defined for the \"Save\" entry"}
  48 $m add command -label "Save As..." -command {error "this is just a demo: no action has been defined for the \"Save As...\" entry"}
  49 $m add separator
  50 $m add command -label "Print Setup..." -command {error "this is just a demo: no action has been defined for the \"Print Setup...\" entry"}
  51 $m add command -label "Print..." -command {error "this is just a demo: no action has been defined for the \"Print...\" entry"}
  52 $m add separator
  53 $m add command -label "Dismiss Menus Demo" -command "destroy $w"
  54
  55 set m $w.menu.basic
  56 $w.menu add cascade -label "Basic" -menu $m -underline 0
  57 menu $m -tearoff 0
  58 $m add command -label "Long entry that does nothing"
  59 if {[string equal [tk windowingsystem] "classic"]
  60         || [string equal [tk windowingsystem] "aqua"]} {
  61     set modifier Command
  62 } elseif {$tcl_platform(platform) == "windows"} {
  63     set modifier Control
  64 } else {
  65     set modifier Meta
  66 }
  67 foreach i {A B C D E F} {
  68     $m add command -label "Print letter \"$i\"" -underline 14 \
  69             -accelerator Meta+$i -command "puts $i" -accelerator $modifier+$i
  70     bind $w <$modifier-[string tolower $i]> "puts $i"
  71 }
  72
  73 set m $w.menu.cascade
  74 $w.menu add cascade -label "Cascades" -menu $m -underline 0
  75 menu $m -tearoff 0
  76 $m add command -label "Print hello" \
  77         -command {puts stdout "Hello"} -accelerator $modifier+H -underline 6
  78 bind $w <$modifier-h> {puts stdout "Hello"}
  79 $m add command -label "Print goodbye" -command {\
  80     puts stdout "Goodbye"} -accelerator $modifier+G -underline 6
  81 bind $w <$modifier-g> {puts stdout "Goodbye"}
  82 $m add cascade -label "Check buttons" \
  83         -menu $w.menu.cascade.check -underline 0
  84 $m add cascade -label "Radio buttons" \
  85         -menu $w.menu.cascade.radio -underline 0
  86
  87 set m $w.menu.cascade.check
  88 menu $m -tearoff 0
  89 $m add check -label "Oil checked" -variable oil
  90 $m add check -label "Transmission checked" -variable trans
  91 $m add check -label "Brakes checked" -variable brakes
  92 $m add check -label "Lights checked" -variable lights
  93 $m add separator
  94 $m add command -label "Show current values" \
  95     -command "showVars $w.menu.cascade.dialog oil trans brakes lights"
  96 $m invoke 1
  97 $m invoke 3
  98
  99 set m $w.menu.cascade.radio
 100 menu $m -tearoff 0
 101 $m add radio -label "10 point" -variable pointSize -value 10
 102 $m add radio -label "14 point" -variable pointSize -value 14
 103 $m add radio -label "18 point" -variable pointSize -value 18
 104 $m add radio -label "24 point" -variable pointSize -value 24
 105 $m add radio -label "32 point" -variable pointSize -value 32
 106 $m add sep
 107 $m add radio -label "Roman" -variable style -value roman
 108 $m add radio -label "Bold" -variable style -value bold
 109 $m add radio -label "Italic" -variable style -value italic
 110 $m add sep
 111 $m add command -label "Show current values" \
 112         -command "showVars $w.menu.cascade.dialog pointSize style"
 113 $m invoke 1
 114 $m invoke 7
 115
 116 set m $w.menu.icon
 117 $w.menu add cascade -label "Icons" -menu $m -underline 0
 118 menu $m -tearoff 0
 119 $m add command \
 120     -bitmap @[file join $tk_library demos images pattern.bmp] \
 121     -hidemargin 1 \
 122     -command {
 123         tk_dialog .pattern {Bitmap Menu Entry} {The menu entry you invoked displays a bitmap rather than a text string.  Other than this, it is just like any other menu entry.} {} 0 OK
 124 }
 125 foreach i {info questhead error} {
 126     $m add command -bitmap $i -command "puts {You invoked the $i bitmap}" -hidemargin 1
 127 }
 128 $m entryconfigure 2 -columnbreak 1
 129
 130 set m $w.menu.more
 131 $w.menu add cascade -label "More" -menu $m -underline 0
 132 menu $m -tearoff 0
 133 foreach i {{An entry} {Another entry} {Does nothing} {Does almost nothing} {Make life meaningful}} {
 134     $m add command -label $i -command [list puts "You invoked \"$i\""]
 135 }
 136 $m entryconfigure "Does almost nothing" \
 137         -bitmap questhead  -compound left  -command {
 138     tk_dialog .compound {Compound Menu Entry} {The menu entry you invoked\
 139             displays both a bitmap and a text string.  Other than this, it\
 140             is just like any other menu entry.} {} 0 OK
 141 }
 142
 143 set m $w.menu.colors
 144 $w.menu add cascade -label "Colors" -menu $m -underline 1
 145 menu $m
 146 foreach i {red orange yellow green blue} {
 147     $m add command -label $i -background $i \
 148             -command [list puts "You invoked \"$i\""]
 149 }
 150
 151 $w configure -menu $w.menu
 152
 153 bind Menu <<MenuSelect>> {
 154     global $menustatus
 155     if {[catch {%W entrycget active -label} label]} {
 156         set label "    "
 157     }
 158     set menustatus $label
 159     update idletasks
 160 }