Class: RubyPost::BaseDrawCommand

Inherits:
Object
  • Object
show all
Defined in:
lib/draw.rb

Overview

base class for the commands that draw drawables. ie. draw, fill, drawarrow and drawdblarrow

Direct Known Subclasses

AbstractPlot, Arrow, BaseGraphData, Clip, DoubleArrow, Draw, Fill

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Object

#compile

Constructor Details

#initialize(d = nil) ⇒ BaseDrawCommand

You can set the drawable in the constructor



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# File 'lib/draw.rb', line 10

def initialize(d=nil)
  @options = Array.new
  @drawable = d
  self
end

Instance Attribute Details

#drawable=(value) ⇒ Object (writeonly)

Sets the attribute drawable

Parameters:

  • value —

    the value to set the attribute drawable to.



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# File 'lib/draw.rb', line 7

def drawable=(value)
  @drawable = value
end

Instance Method Details

#add_option(o) ⇒ Object 



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# File 'lib/draw.rb', line 16

def add_option(o)
  @options.push(o)
  self
end

#color(r, g, b) ⇒ Object

macro for setting the colour of the draw command. Spelt incorrectly.



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# File 'lib/draw.rb', line 44

def color(r,g,b)
  colour(r,g,b)
end

#colour(r, g, b) ⇒ Object

macro for setting the colour of the draw command



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# File 'lib/draw.rb', line 37

def colour(r,g,b)
  add_option(Colour.new(r,g,b))
  self
end

#compile_options ⇒ Object

utility function to compile all the options



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# File 'lib/draw.rb', line 30

def compile_options
  str = String.new
  @options.each { |o| str = str + ' ' + o.compile }
  return str
end

#rotate(a) ⇒ Object

macro for rotating the draw command. This is the same as using add_option(Rotate.new(a))



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# File 'lib/draw.rb', line 64

def rotate(a)
  add_option(Rotate.new(a))
  self
end

#scale(s) ⇒ Object

macro for scaling the draw command. This is the same as using add_option(Scale.new(s))



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# File 'lib/draw.rb', line 50

def scale(s)
  add_option(Scale.new(s))
  self
end

#set_drawable(d) ⇒ Object

set the drawble to for this draw command. There is only one drawable per command. You can alternatively use BaseDrawCommand::drawable=



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# File 'lib/draw.rb', line 24

def set_drawable(d)
  @drawable = d
  self
end

#translate(x, y) ⇒ Object

macro for translating the draw command. This is the same as using add_option(Translate.new(x,y))



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# File 'lib/draw.rb', line 57

def translate(x,y)
  add_option(Translate.new(Pair.new(x,y)))
  self
end