Class: Svgcode::SVG::BaseCommand

Inherits:
Object
  • Object
show all
Defined in:
lib/svgcode/svg/base_command.rb

Direct Known Subclasses

Circle, PathCommand

Constant Summary collapse

NAMES = 
{
  'm' => :move,
  'l' => :line,
  'c' => :cubic,
  'z' => :close
}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts) ⇒ BaseCommand

Returns a new instance of BaseCommand.



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# File 'lib/svgcode/svg/base_command.rb', line 15

def initialize(opts)
  @name = opts[:name]
  @absolute = !!opts[:absolute]
  @points = opts[:points] || []
end

Instance Attribute Details

#absolute(pos) ⇒ Object (readonly)

Returns the value of attribute absolute.



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# File 'lib/svgcode/svg/base_command.rb', line 6

def absolute
  @absolute
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/svgcode/svg/base_command.rb', line 6

def name
  @name
end

#points ⇒ Object (readonly)

Returns the value of attribute points.



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# File 'lib/svgcode/svg/base_command.rb', line 6

def points
  @points
end

Class Method Details

.name_str(sym, absolute) ⇒ Object 



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# File 'lib/svgcode/svg/base_command.rb', line 84

def self.name_str(sym, absolute)
  str = NAMES.key(sym).dup
  str.upcase! if absolute
  str
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/svgcode/svg/base_command.rb', line 73

def ==(other)
  other.is_a?(self.class) &&
    other.name == @name &&
    other.absolute? == @absolute &&
    other.points == @points
end

#absolute!(pos) ⇒ Object 



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# File 'lib/svgcode/svg/base_command.rb', line 34

def absolute!(pos)
  if relative?
    @points.collect! { |p| p + pos }
    @absolute = true
  end
end

#absolute? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/svgcode/svg/base_command.rb', line 21

def absolute?
  @absolute
end

#apply_transforms!(transforms) ⇒ Object 



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# File 'lib/svgcode/svg/base_command.rb', line 61

def apply_transforms!(transforms)
  unless transforms.empty?
    transforms.reverse.each do |transform|
      @points.collect! { |point| transform.apply(point) }
    end
  end
end

#divide_points_by!(amount) ⇒ Object 



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# File 'lib/svgcode/svg/base_command.rb', line 51

def divide_points_by!(amount)
  @points.each { |point| point.divide_by!(amount) }
  nil
end

#flip_points_y!(max_y) ⇒ Object 



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# File 'lib/svgcode/svg/base_command.rb', line 56

def flip_points_y!(max_y)
  @points.each { |point| point.flip_y!(max_y) }
  nil
end

#name_str ⇒ Object 



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# File 'lib/svgcode/svg/base_command.rb', line 69

def name_str
  Command.name_str(@name, absolute?)
end

#negate_points_y ⇒ Object 



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# File 'lib/svgcode/svg/base_command.rb', line 41

def negate_points_y
  points = @points.collect { |point| point.negate_y }
  Command.new(name: @name, absolute: @absolute, points: points)
end

#negate_points_y! ⇒ Object 



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# File 'lib/svgcode/svg/base_command.rb', line 46

def negate_points_y!
  @points.each { |point| point.negate_y! }
  nil
end

#relative? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/svgcode/svg/base_command.rb', line 25

def relative?
  !@absolute
end

#to_s ⇒ Object 



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# File 'lib/svgcode/svg/base_command.rb', line 80

def to_s
  name_str + @points.collect { |p| p.to_s }.join(' ')
end