Class: UILabel

Inherits:
Object show all
Defined in:
lib/ios/sugarcube-ui/uilabel.rb,
lib/ios/sugarcube-to_s/uilabel.rb,
lib/ios/sugarcube-factories/uilabel.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.label(text = nil, font = nil, size = nil) ⇒ Object

Examples:

UILabel.label('test')
UILabel.label('test', another_label.font)
UILabel.label('test', 'Helvetica')
UILabel.label('test', 'Helvetica', 20)


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# File 'lib/ios/sugarcube-factories/uilabel.rb', line 8

def self.label(text=nil, font=nil, size=nil)
  return new() if text.nil?

  font = font.uifont(size) if font.respond_to?(:uifont)
  label = self.alloc.initWithFrame([[0, 0], [0, 0]])
  if text.is_a?(NSAttributedString)
    label.attributedText = text
  else
    label.text = text
  end
  if font
    label.font = font
  end
  label.backgroundColor = :clear.uicolor
  label.sizeToFit
  label
end

Instance Method Details

#fit_to_size(max_size) ⇒ Object

forces the given text to fit inside the label’s frame starting at a given font size



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# File 'lib/ios/sugarcube-ui/uilabel.rb', line 4

def fit_to_size(max_size)
  #enforce word wrap
  self.lineBreakMode = NSLineBreakByWordWrapping

  dynamic_font = self.font.fontWithSize(max_size + 2)
  constraintSize = CGSizeMake(self.frame.size.width, 10000)

  # does it fit yet?
  begin
    dynamic_font = dynamic_font.fontWithSize(dynamic_font.pointSize - 2)
    current_size = self.text.sizeWithFont(dynamic_font, constrainedToSize:constraintSize, lineBreakMode: NSLineBreakByWordWrapping)
  end while self.frame.size.height <= current_size.height

  #now set to font size we have settled on
  self.font = dynamic_font

end

#sugarcube_to_s(options = {}) ⇒ Object 



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# File 'lib/ios/sugarcube-to_s/uilabel.rb', line 3

def sugarcube_to_s(options={})
  text = self.text
  if text && text.length > 20
    text = text[0..20] + '...'
  end
  super options.merge(inner: {text: text})
end