Class: DYI::Shape::Path::PathData

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/dyi/shape/path.rb

Overview

Since:

  • 0.0.0

Instance Method Summary collapse

Constructor Details

#initialize(*points) ⇒ PathData

Returns a new instance of PathData.

Raises:

  • (ArgumentError)

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 493

def initialize(*points)
  raise ArgumentError, 'wrong number of arguments (0 for 1)' if points.empty?
  @commands = MoveCommand.absolute_commands(nil, *points)
end

Instance Method Details

#close? ⇒ Boolean

Returns:

  • (Boolean)

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 582

def close?
  @commands.last.is_a?(CloseCommand)
end

#compatible_path_data ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 555

def compatible_path_data
  new_instance = clone
  new_instance.commands = compatible_path_commands
  new_instance
end

#compatible_path_data! ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 561

def compatible_path_data!
  @commands = compatible_path_commands
  self
end

#current_point ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 570

def current_point
  @commands.last.last_point
end

#current_start_point ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 574

def current_start_point
  @commands.last.start_point
end

#each ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 498

def each
  if block_given?
    @commands.each{|command| yield command}
  else
    @commands.each
  end
end

#path_points ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 578

def path_points
  @commands.map{|command| command.points}.flatten
end

#pop_command ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 551

def pop_command
  @commands.pop
end

#push_command(command_type, *args) ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 506

def push_command(command_type, *args)
  case command_type
  when :move_to
    @commands.push(*MoveCommand.absolute_commands(@commands.last, *args))
  when :rmove_to
    @commands.push(*MoveCommand.relative_commands(@commands.last, *args))
  when :close_path
    @commands.push(*CloseCommand.commands(@commands.last))
  when :line_to
    @commands.push(*LineCommand.absolute_commands(@commands.last, *args))
  when :rline_to
    @commands.push(*LineCommand.relative_commands(@commands.last, *args))
  when :horizontal_lineto_to
    @commands.push(*HorizontalLineCommand.absolute_commands(@commands.last, *args))
  when :rhorizontal_lineto_to
    @commands.push(*HorizontalLineCommand.relative_commands(@commands.last, *args))
  when :vertical_lineto_to
    @commands.push(*VerticalLineCommand.absolute_commands(@commands.last, *args))
  when :rvertical_lineto_to
    @commands.push(*VerticalLineCommand.relative_commands(@commands.last, *args))
  when :curve_to
    @commands.push(*CurveCommand.absolute_commands(@commands.last, *args))
  when :rcurve_to
    @commands.push(*CurveCommand.relative_commands(@commands.last, *args))
  when :shorthand_curve_to
    @commands.push(*ShorthandCurveCommand.absolute_commands(@commands.last, *args))
  when :rshorthand_curve_to
    @commands.push(*ShorthandCurveCommand.relative_commands(@commands.last, *args))
  when :quadratic_curve_to
    @commands.push(*QuadraticCurveCommand.absolute_commands(@commands.last, *args))
  when :rquadratic_curve_to
    @commands.push(*QuadraticCurveCommand.relative_commands(@commands.last, *args))
  when :shorthand_quadratic_curve_to
    @commands.push(*ShorthandQuadraticCurveCommand.absolute_commands(@commands.last, *args))
  when :rshorthand_quadratic_curve_to
    @commands.push(*ShorthandQuadraticCurveCommand.relative_commands(@commands.last, *args))
  when :arc_to
    @commands.push(*ArcCommand.absolute_commands(@commands.last, *args))
  when :rarc_to
    @commands.push(*ArcCommand.relative_commands(@commands.last, *args))
  else
    raise ArgumentError, "unknown command type `#{command_type}'"
  end
end

#start_point ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 566

def start_point
  @commands.first.start_point
end

#to_concise_syntax ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/shape/path.rb', line 586

def to_concise_syntax
  @commands.map{|command| command.to_concise_syntax_fragments}.join(' ')
end