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94 lines
2.4 KiB
Ruby
94 lines
2.4 KiB
Ruby
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# labelframe.rb
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#
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# This demonstration script creates a toplevel window containing
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# several labelframe widgets.
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#
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# based on "Id: labelframe.tcl,v 1.2 2001/10/30 11:21:50 dkf Exp"
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if defined?($labelframe_demo) && $labelframe_demo
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$labelframe_demo.destroy
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$labelframe_demo = nil
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end
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$labelframe_demo = TkToplevel.new {|w|
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title("Labelframe Demonstration")
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iconname("labelframe")
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positionWindow(w)
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}
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# Some information
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TkLabel.new($labelframe_demo,
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:font=>$font, :wraplength=>'4i', :justify=>:left,
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:text=><<EOL).pack(:side=>:top)
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Labelframes are used to group related widgets together. \
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The label may be either plain text or another widget. \
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If your Tk library linked to Ruby doesn't include a 'labelframe' widget, \
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this demo doesn't work. Please use later version of Tk \
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which supports a 'labelframe' widget.
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EOL
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# The bottom buttons
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TkFrame.new($labelframe_demo){|f|
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pack(:side=>:bottom, :fill=>:x, :pady=>'2m')
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TkButton.new(f, :text=>'Dismiss', :width=>15, :command=>proc{
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$labelframe_demo.destroy
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$labelframe_demo = nil
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}).pack(:side=>:left, :expand=>true)
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TkButton.new(f, :text=>'See Code', :width=>15, :command=>proc{
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showCode 'labelframe'
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}).pack(:side=>:left, :expand=>true)
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}
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# Demo area
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w = TkFrame.new($labelframe_demo).pack(:side=>:bottom, :fill=>:both,
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:expand=>true)
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# A group of radiobuttons in a labelframe
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TkLabelFrame.new(w, :text=>'Value',
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:padx=>2, :pady=>2) {|f|
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grid(:row=>0, :column=>0, :pady=>'2m', :padx=>'2m')
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v = TkVariable.new
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(1..4).each{|i|
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TkRadiobutton.new(f, :text=>"This is value #{i}",
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:variable=>v, :value=>i) {
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pack(:side=>:top, :fill=>:x, :pady=>2)
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}
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}
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}
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# Using a label window to control a group of options.
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$lfdummy = TkVariable.new(0)
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def lfEnableButtons(w)
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TkWinfo.children(w).each{|child|
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next if child.path =~ /\.cb$/
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if $lfdummy == 1
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child.state(:normal)
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else
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child.state(:disabled)
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end
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}
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end
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TkLabelFrame.new(w, :pady=>2, :padx=>2){|f|
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TkCheckButton.new(f, :widgetname=>'cb', :variable=>$lfdummy,
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:text=>"Use this option.", :padx=>0) {|cb|
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command proc{lfEnableButtons(f)}
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f.labelwidget(cb)
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}
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grid(:row=>0, :column=>1, :pady=>'2m', :padx=>'2m')
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%w(Option1 Option2 Option3).each{|str|
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TkCheckbutton.new(f, :text=>str).pack(:side=>:top, :fill=>:x, :pady=>2)
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}
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lfEnableButtons(f)
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}
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TkGrid.columnconfigure(w, [0,1], :weight=>1)
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