Class: DynVar

Inherits:
Object show all
Defined in:
lib/ruiby_gtk/dyn_var.rb

Overview

Variable binding for widget : (shower/editor widget) <==> (int/float/string/bool variable) ###########

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(v, name = "") ⇒ DynVar

Returns a new instance of DynVar.



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# File 'lib/ruiby_gtk/dyn_var.rb', line 62

def initialize(v,name="") @value=v ; @abo={} ; @name=name end

Class Method Details

.save_stock ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 58

def save_stock 
  (@ldyn||[]).each { |v| Ruiby.stock_put(v.name, v.value.to_s) if v.name }
end

.stock(name, defv) ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 48

def stock(name,defv) 
  v= Ruiby.stock_get(name,defv)
  var=DynVar.new(v,name)
  if ! @ldyn
     @ldyn=[]    
     at_exit { DynVar.save_stock }
  end
  @ldyn << var
  var
end

Instance Method Details

#destroy ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 97

def destroy()
  @abo=[]
end

#do_notification ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 66

def do_notification()
   return if @abo.size==0
   abo=@abo.clone
   return if abo.size==0
   there=self
   gui_invoke_wait { after(100) { abo.each { |a,b|  b.call(there.value) } } } 
end

#get_as_bool ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 83

def get_as_bool() 
  case @value
  when Numeric then @value!=0 
  when String then @value && @value.length>0
  else 
    !! @value
  end
end

#name ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 64

def name() @name                                         end

#observ(&blk) ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 65

def observ(&blk)  @abo[caller] = blk  ; blk.call(@value) end

#set_as_bool(v) ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 75

def set_as_bool(v) 
  @value=case  @value
       when Numeric then v ? 1 : 0 
       when String then v ? "1" : ""
       else !!v
  end
  do_notification()
end

#set_name(name) ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 63

def set_name(name) @name=name                            end

#set_trace(on) ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 91

def set_trace(on)
  @trace=on
end

#tr(old, neww) ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 94

def tr(old,neww)
  puts "trace var from #{old} to #{neww}" if @trace
end

#value ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 74

def value()     @value  end

#value=(v) ⇒ Object 



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# File 'lib/ruiby_gtk/dyn_var.rb', line 73

def value=(v)  (tr(@value,v);  @value=v ; do_notification()) if @value!=v end