if defined?($button_demo) && $button_demo
$button_demo.destroy
$button_demo = nil
end
$button_demo = TkToplevel.new {|w|
title("Button Demonstration")
iconname("button")
positionWindow(w)
}
msg = TkLabel.new($button_demo) {
font $kanji_font
wraplength '4i'
justify 'left'
text "If you click on any of the four buttons below, the background of the button area will change to the color indicated in the button. You can press Tab to move among the buttons, then press Space to invoke the current button."
}
msg.pack('side'=>'top')
$button_buttons = Tk::Frame.new($button_demo) {|frame|
TkButton.new(frame) {
text 'Dismiss'
command proc{
tmppath = $button_demo
$button_demo = nil
tmppath.destroy
}
}.pack('side'=>'left', 'expand'=>'yes')
TkButton.new(frame) {
text 'See Code'
command proc{showCode 'button'}
}.pack('side'=>'left', 'expand'=>'yes')
}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
TkButton.new($button_demo){
text "Peach Puff"
width 10
command proc{
$button_demo.configure('bg','PeachPuff1')
$button_buttons.configure('bg','PeachPuff1')
}
}.pack('side'=>'top', 'expand'=>'yes', 'pady'=>2)
TkButton.new($button_demo){
text "Light Blue"
width 10
command proc{
$button_demo.configure('bg','LightBlue1')
$button_buttons.configure('bg','LightBlue1')
}
}.pack('side'=>'top', 'expand'=>'yes', 'pady'=>2)
TkButton.new($button_demo){
text "Sea Green"
width 10
command proc{
$button_demo.configure('bg','SeaGreen2')
$button_buttons.configure('bg','SeaGreen2')
}
}.pack('side'=>'top', 'expand'=>'yes', 'pady'=>2)
TkButton.new($button_demo){
text "Yellow"
width 10
command proc{
$button_demo.configure('bg','Yellow1')
$button_buttons.configure('bg','Yellow1')
}
}.pack('side'=>'top', 'expand'=>'yes', 'pady'=>2)