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# frozen_string_literal: false
# radio2.rb
#
# This demonstration script creates a toplevel window containing
# several radiobutton widgets.
#
# radiobutton widget demo (called by 'widget')
#
# toplevel widget
if defined?($radio2_demo) && $radio2_demo
$radio2_demo.destroy
$radio2_demo = nil
end
# demo toplevel widget
$radio2_demo = TkToplevel.new {|w|
title("Radiobutton Demonstration 2")
iconname("radio2")
positionWindow(w)
}
base_frame = TkFrame.new($radio2_demo).pack(:fill=>:both, :expand=>true)
# label
msg = TkLabel.new(base_frame) {
font $font
wraplength '5i'
justify 'left'
text "Three groups of radiobuttons are displayed below. If you click on a button then the button will become selected exclusively among all the buttons in its group. A Tcl variable is associated with each group to indicate which of the group's buttons is selected. Click the \"See Variables\" button to see the current values of the variables."
}
msg.pack('side'=>'top')
#
size = TkVariable.new
color = TkVariable.new
align = TkVariable.new
# frame
TkFrame.new(base_frame) {|frame|
TkButton.new(frame) {
text 'Dismiss'
command proc{
tmppath = $radio2_demo
$radio2_demo = nil
$showVarsWin[tmppath.path] = nil
tmppath.destroy
}
}.pack('side'=>'left', 'expand'=>'yes')
TkButton.new(frame) {
text 'Show Code'
command proc{showCode 'radio2'}
}.pack('side'=>'left', 'expand'=>'yes')
TkButton.new(frame) {
text 'See Variables'
command proc{
showVars(base_frame,
['size', size], ['color', color], ['compound', align])
}
}.pack('side'=>'left', 'expand'=>'yes')
}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
# frame
f_left = TkLabelFrame.new(base_frame, 'text'=>'Point Size',
'pady'=>2, 'padx'=>2)
f_mid = TkLabelFrame.new(base_frame, 'text'=>'Color',
'pady'=>2, 'padx'=>2)
f_right = TkLabelFrame.new(base_frame, 'text'=>'Alignment',
'pady'=>2, 'padx'=>2)
f_left.pack('side'=>'left', 'expand'=>'yes', 'padx'=>'.5c', 'pady'=>'.5c')
f_mid.pack('side'=>'left', 'expand'=>'yes', 'padx'=>'.5c', 'pady'=>'.5c')
f_right.pack('side'=>'left', 'expand'=>'yes', 'padx'=>'.5c', 'pady'=>'.5c')
# radiobutton
[10, 12, 18, 24].each {|sz|
TkRadioButton.new(f_left) {
text "Point Size #{sz}"
variable size
relief 'flat'
value sz
}.pack('side'=>'top', 'pady'=>2, 'anchor'=>'w', 'fill'=>'x')
}
['Red', 'Green', 'Blue', 'Yellow', 'Orange', 'Purple'].each {|col|
TkRadioButton.new(f_mid) {
text col
variable color
relief 'flat'
value col.downcase
anchor 'w'
}.pack('side'=>'top', 'pady'=>2, 'fill'=>'x')
}
# label = TkLabel.new(f_right, 'text'=>'Label', 'bitmap'=>'questhead',
label = Tk::Label.new(f_right, 'text'=>'Label', 'bitmap'=>'questhead',
'compound'=>'left')
label.configure('width'=>TkWinfo.reqwidth(label), 'compound'=>'top')
label.height(TkWinfo.reqheight(label))
abtn = ['Top', 'Left', 'Right', 'Bottom'].collect{|a|
lower = a.downcase
TkRadioButton.new(f_right, 'text'=>a, 'variable'=>align, 'relief'=>'flat',
'value'=>lower, 'indicatoron'=>0, 'width'=>7,
'command'=>proc{label.compound(align.value)})
}
Tk.grid('x', abtn[0])
Tk.grid(abtn[1], label, abtn[2])
Tk.grid('x', abtn[3])
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