Module: Shoes::Common::Visibility

Included in:
UIElement, Swt::Arc, Swt::Arrow, Swt::Background, Swt::Border, Swt::Image, Swt::InputBox, Swt::Line, Swt::ListBox, Swt::Oval, Swt::Progress, Swt::Rect, Swt::Shape, Swt::Slot, Swt::Star, Swt::SwtButton, Swt::TextBlock
Defined in:
shoes-core/lib/shoes/common/visibility.rb

Instance Method Summary collapse

Instance Method Details

#hidden? ⇒ Boolean Also known as: hidden

Root method for determining whether we’re visible or not, taking into account our parent chain’s visibility.

Returns:

  • (Boolean) 


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# File 'shoes-core/lib/shoes/common/visibility.rb', line 14

def hidden?
  (defined?(@parent) && @parent&.hidden?) || style[:hidden]
end

#hidden_from_view? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'shoes-core/lib/shoes/common/visibility.rb', line 24

def hidden_from_view?
  hidden? || outside_parent_view?
end

#hide ⇒ Object

Hides the element, so that it can’t be seen. See also #show and #toggle.



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# File 'shoes-core/lib/shoes/common/visibility.rb', line 7

def hide
  style(hidden: true)
  self
end

#outside_parent_view? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'shoes-core/lib/shoes/common/visibility.rb', line 28

def outside_parent_view?
  # Painted elements handle slot bounds themselves when painting
  return false if @parent.nil? || @parent.variable_height? || painted?

  # We hide when we're at all outside our parent's bounds
  !@parent.contains?(dimensions)
end

#show ⇒ Object

Reveals the element, if it is hidden. See also #hide and #toggle.



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# File 'shoes-core/lib/shoes/common/visibility.rb', line 37

def show
  style(hidden: false)
  self
end

#toggle ⇒ Object

Hides an element if it is shown. Or shows the element, if it is hidden. See also #hide and #show.



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# File 'shoes-core/lib/shoes/common/visibility.rb', line 44

def toggle
  style(hidden: !style[:hidden])
  self
end

#visible? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'shoes-core/lib/shoes/common/visibility.rb', line 20

def visible?
  !hidden?
end