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#
# checkbutton widget demo2 (called by 'widget')
#

# toplevel widget ¤¬Â¸ºß¤¹¤ì¤Ðºï½ü¤¹¤ë
if defined?($check2_demo) && $check2_demo
  $check2_demo.destroy 
  $check2_demo = nil
end

# demo ÍѤΠtoplevel widget ¤òÀ¸À®
$check2_demo = TkToplevel.new {|w|
  title("Checkbutton Demonstration 2")
  iconname("check2")
  positionWindow(w)
}

# label À¸À®
msg = TkLabel.new($check2_demo) {
  font $font
  wraplength '4i'
  justify 'left'
  text "²¼¤Ë¤Ï£´¤Ä¤Î¥Á¥§¥Ã¥¯¥Ü¥¿¥ó¤¬É½¼¨¤µ¤ì¤Æ¤¤¤Þ¤¹¡£¥¯¥ê¥Ã¥¯¤¹¤ë¤È¥Ü¥¿¥ó¤ÎÁªÂò¾õÂÖ¤¬ÊѤï¤ê¡¢TclÊÑ¿ô¡ÊTkVariable¥ª¥Ö¥¸¥§¥¯¥È¤Ç¥¢¥¯¥»¥¹¤Ç¤­¤Þ¤¹¡Ë¤Ë¤½¤Î¥Ü¥¿¥ó¤Î¾õÂÖ¤ò¼¨¤¹ÃͤòÀßÄꤷ¤Þ¤¹¡£ºÇ½é¤Î¥Ü¥¿¥ó¤Î¾õÂ֤Ͼ¤Î£³¤Ä¤Î¥Ü¥¿¥ó¤Î¾õÂ֤ˤâ°Í¸¤·¤ÆÊѲ½¤·¤Þ¤¹¡£¤â¤·£³¤Ä¤Î¥Ü¥¿¥ó¤Î°ìÉô¤À¤±¤Ë¥Á¥§¥Ã¥¯¤¬ÉÕ¤±¤é¤ì¤Æ¤¤¤ë¾ì¹ç¡¢ºÇ½é¤Î¥Ü¥¿¥ó¤Ï¥È¥é¥¤¥¹¥Æ¡¼¥È¡Ê£³¾õÂ֡˥⡼¥É¤Ç¤Îɽ¼¨¤ò¹Ô¤¤¤Þ¤¹¡£¸½ºß¤ÎÊÑ¿ô¤ÎÃͤò¸«¤ë¤Ë¤Ï¡ÖÊÑ¿ô»²¾È¡×¥Ü¥¿¥ó¤ò¥¯¥ê¥Ã¥¯¤·¤Æ¤¯¤À¤µ¤¤¡£"
}
msg.pack('side'=>'top')

# ÊÑ¿ôÀ¸À®
safety = TkVariable.new(0)
wipers = TkVariable.new(0)
brakes = TkVariable.new(0)
sober  = TkVariable.new(0)

# frame À¸À®
TkFrame.new($check2_demo) {|frame|
  TkGrid(TkFrame.new(frame, :height=>2, :relief=>:sunken, :bd=>2), 
         :columnspan=>4, :row=>0, :sticky=>'ew', :pady=>2)
  TkGrid('x', 
         TkButton.new(frame, :text=>'ÊÑ¿ô»²¾È', 
                      :image=>$image['view'], :compound=>:left, 
                      :command=>proc{
                        showVars($check2_demo, 
                                 ['safety', safety], ['wipers', wipers], 
                                 ['brakes', brakes], ['sober', sober])
                      }), 
         TkButton.new(frame, :text=>'¥³¡¼¥É»²¾È', 
                      :image=>$image['view'], :compound=>:left, 
                      :command=>proc{showCode 'check2'}), 
         TkButton.new(frame, :text=>'ÊĤ¸¤ë', 
                      :image=>$image['delete'], :compound=>:left, 
                      :command=>proc{
                        tmppath = $check2_demo
                        $check2_demo = nil
                        $showVarsWin[tmppath.path] = nil
                        tmppath.destroy
                      }), 
         :padx=>4, :pady=>4)
  frame.grid_columnconfigure(0, :weight=>1)
}.pack('side'=>'bottom', 'fill'=>'x')


# checkbutton À¸À®
TkCheckButton.new($check2_demo, :text=>'°ÂÁ´À­¸¡ºº', :variable=>safety, 
                  :relief=>:flat, :onvalue=>'all', :offvalue=>'none', 
                  :tristatevalue=>'partial'){
  pack('side'=>'top', 'pady'=>2, 'anchor'=>'w')
}

[ TkCheckButton.new($check2_demo, 'text'=>'¥ï¥¤¥Ñ¡¼ OK', 'variable'=>wipers),
  TkCheckButton.new($check2_demo, 'text'=>'¥Ö¥ì¡¼¥­ OK', 'variable'=>brakes),
  TkCheckButton.new($check2_demo, 'text'=>'±¿Å¾¼ê ÁÇÌÌ', 'variable'=>sober)
].each{|w| 
  w.relief('flat')
  w.pack('side'=>'top', 'padx'=>15, 'pady'=>2, 'anchor'=>'w')
}

# tristate check
in_check = false
tristate_check = proc{|n1,n2,op|
  unless in_check
    in_check = true
    begin
      if n1 == safety
        if safety == 'none'
          wipers.value = 0
          brakes.value = 0
          sober.value  = 0
        elsif safety == 'all'
          wipers.value = 1
          brakes.value = 1
          sober.value  = 1
        end
      else
        if wipers == 1 && brakes == 1 && sober == 1
          safety.value = 'all'
        elsif wipers == 1 || brakes == 1 || sober == 1
          safety.value = 'partial'
        else
          safety.value = 'none'
        end
      end
    ensure
      in_check = false
    end
  end
}

[wipers, brakes, sober, safety].each{|v| v.trace('w', tristate_check)}