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# label.rb
#
# This demonstration script creates a toplevel window containing
# several label widgets.
#
# label widget demo (called by 'widget')
#
# toplevel widget
if defined?($label_demo) && $label_demo
$label_demo.destroy
$label_demo = nil
end
# demo toplevel widget
$label_demo = TkToplevel.new {|w|
title("Label Demonstration")
iconname("label")
positionWindow(w)
}
# label
msg = TkLabel.new($label_demo) {
font $font
wraplength '4i'
justify 'left'
text "Five labels are displayed below: three textual ones on the left, and a bitmap label and a text label on the right. Labels are pretty boring because you can't do anything with them."
}
msg.pack('side'=>'top')
# frame
TkFrame.new($label_demo) {|frame|
TkButton.new(frame) {
text 'Dismiss'
command proc{
tmppath = $label_demo
$label_demo = nil
tmppath.destroy
}
}.pack('side'=>'left', 'expand'=>'yes')
TkButton.new(frame) {
text 'See Code'
command proc{showCode 'label'}
}.pack('side'=>'left', 'expand'=>'yes')
}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
# label demo
f_left = TkFrame.new($label_demo)
f_right = TkFrame.new($label_demo)
[f_left, f_right].each{|w| w.pack('side'=>'left', 'expand'=>'yes',
'padx'=>10, 'pady'=>10, 'fill'=>'both')}
# label
[ TkLabel.new(f_left, 'text'=>'First label'),
TkLabel.new(f_left, 'text'=>'Second label, raised',
'relief'=>'raised'),
TkLabel.new(f_left, 'text'=>'Third label, sunken', 'relief'=>'sunken')
].each{|w| w.pack('side'=>'top', 'expand'=>'yes', 'pady'=>2, 'anchor'=>'w')}
TkLabel.new(f_right) {
bitmap('@' + [$demo_dir,'..','images','face.xbm'].join(File::Separator))
borderwidth 2
relief 'sunken'
}.pack('side'=>'top')
TkLabel.new(f_right) { text 'Tcl/Tk Proprietor' }.pack('side'=>'top')
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