Class: Painter::Text
Defined Under Namespace
Classes: BlankFontError, MissingFontError
Instance Method Summary collapse
Methods inherited from Operation
#_angle, #_color, #angle, #color, #initialize, pretty_accessor
Constructor Details
This class inherits a constructor from Painter::Operation
Instance Method Details
#draw ⇒ Object
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# File 'lib/painter/text.rb', line 9 def draw raise BlankFontError if _font.nil? raise MissingFontError, _font unless File.exists?(_font) brect = FFI::MemoryPointer.new(:int, 8) error = CGD2::gdImageStringFT(@image.image_pointer, brect, _color.rgba, _font, _size.to_f, _angle.to_f, _at.x, _at.y, _text.gsub('&', '&')) raise "Drawing error: #{error}" unless error.null? brect = brect.read_array_of_int(8) { :lower_left => [brect[0], brect[1]], :lower_right => [brect[2], brect[3]], :upper_right => [brect[4], brect[5]], :upper_left => [brect[6], brect[7]]} end |