Class: Reflex::TextView

Inherits:
View
  • Object
show all
Defined in:
lib/reflex/text_view.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from View

#capture, #capture=, #capturing?, #children, #gravity=, has_model, #style, #styles

Methods included from HasTags

#clear_tags, #tag, #tag=, #tags, #untag

Methods included from HasFrame

#frame, #frame=, #inset_by, #move_by, #move_to, #resize_by, #resize_to

Methods included from Hookable

#hook

Constructor Details

#initialize(*args, &block) ⇒ TextView

Returns a new instance of TextView.



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# File 'lib/reflex/text_view.rb', line 18

def initialize (*args, &block)
  @outdated = false
  super
end

Instance Attribute Details

#font ⇒ Object

Returns the value of attribute font.



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# File 'lib/reflex/text_view.rb', line 16

def font
  @font
end

Instance Method Details

#content_size ⇒ Object 



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# File 'lib/reflex/text_view.rb', line 23

def content_size ()
  s = string
  return 0, 0 unless s && window
  font = @font || window.painter.font
  [font.width(s), font.height].map &:ceil
end

#on_data_update(e) ⇒ Object 



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# File 'lib/reflex/text_view.rb', line 39

def on_data_update (e)
  @outdated = true
  super
end

#on_draw(e) ⇒ Object 



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# File 'lib/reflex/text_view.rb', line 30

def on_draw (e)
  @image = create_text_image if @outdated
  return unless @image

  pa = e.painter
  pa.color 1
  pa.image @image
end