Class: RelationHandle

Inherits:
Gtk::EventBox
  • Object
show all
Defined in:
lib/RelationBuilder/Relation/RelationHandle.rb

Overview

this file is part of manqod manqod is distributed under the CDDL licence the author of manqod is Dobai-Pataky Balint([email protected])

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(relation, x, y) ⇒ RelationHandle

Returns a new instance of RelationHandle.



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# File 'lib/RelationBuilder/Relation/RelationHandle.rb', line 6

def initialize(relation,x,y)
  super()
  visible_window=false
  add(@widget=Gtk::ToggleButton.new)
  set_above_child(true)
  @widget.set_size_request(10,10)
  @dragging=false
  @relation=relation
  @x=x
  @y=y
  @widget.signal_connect("toggled"){|me,ev|
    @relation.parentM.review_all
    @relation.parentM.changed(@relation)
  }
  signal_connect('button-press-event'){|me,ev|
    @relation.parentM.set_focused_item(self)
    case ev.button 
      when 1
        @widget.set_active(!@widget.active?)
      when 2
        @xshift=ev.x
        @yshift=ev.y
        @dragging=true
      when 3
        menu=Gtk::Menu.new
        menu.signal_connect("deactivate"){|menu| @relation.parentM.set_focused_item(nil)}
        menu.append(er=Gtk::ImageMenuItem.new("properties").set_image(Gtk::Image.new(Gtk::Stock::PROPERTIES,Gtk::IconSize::MENU)))
          er.signal_connect("activate"){|me| @relation.edit}
        menu.append(rr=Gtk::ImageMenuItem.new("remove").set_image(Gtk::Image.new(Gtk::Stock::DISCONNECT,Gtk::IconSize::MENU)))
          rr.signal_connect("activate"){|me| @relation.remove}
        menu.show_all
        menu.popup(nil,nil,ev.button,ev.time)
    end
    true
  }
  signal_connect('motion-notify-event'){|me,event|
  if @dragging
    @x=@relation.parentM.widget.pointer[0]-@xshift 
    @y=@relation.parentM.widget.pointer[1]-@yshift 
    move_me
  end
  true
  }
  signal_connect('button-release-event'){|me,event|
    if @dragging
      @relation.save
      @dragging=false
    end
    @relation.parentM.set_focused_item(nil)
    true
  }
end

Instance Attribute Details

#dragging ⇒ Object

Returns the value of attribute dragging.



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# File 'lib/RelationBuilder/Relation/RelationHandle.rb', line 59

def dragging
  @dragging
end

#widget ⇒ Object (readonly)

Returns the value of attribute widget.



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# File 'lib/RelationBuilder/Relation/RelationHandle.rb', line 58

def widget
  @widget
end

#x ⇒ Object (readonly)

Returns the value of attribute x.



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# File 'lib/RelationBuilder/Relation/RelationHandle.rb', line 58

def x
  @x
end

#y ⇒ Object (readonly)

Returns the value of attribute y.



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# File 'lib/RelationBuilder/Relation/RelationHandle.rb', line 58

def y
  @y
end

Instance Method Details

#move_me(newx = x, newy = y) ⇒ Object 



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# File 'lib/RelationBuilder/Relation/RelationHandle.rb', line 61

def move_me(newx=x,newy=y)
  @x=newx
  @y=newy
  parent.move(self,x,y) if parent
end

#to_s ⇒ Object 



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# File 'lib/RelationBuilder/Relation/RelationHandle.rb', line 66

def to_s
  "Handle of #{@relation}"
end