Class: CTioga2::Graphics::Elements::GradientRegion

Inherits:
RedirectingContainer show all
Defined in:
lib/ctioga2/graphics/elements/gradient-region.rb

Overview

A GradientRegion is an object that makes color gradient for the curves. Especially useful for a great number of curves, and when one doesn’t want to compute…

Like Region It is a fake container in the sense that all the elements are actually forwarded to the parent.

Instance Attribute Summary collapse

Attributes inherited from Container

#elements, #legend_area, #legend_storage, #root_object, #subframe

Attributes inherited from TiogaElement

#location, #parent

Instance Method Summary collapse

Methods inherited from RedirectingContainer

#add_legend_item, #legend_area=, #style

Methods inherited from Container

#actual_subframe, #add_legend_item, #size

Methods inherited from TiogaElement

#do, #inspect

Methods included from Log

debug, error, fatal, #format_exception, #identify, info, init_logger, logger, set_level, #spawn, warn

Constructor Details

#initialize(parent = nil, root = nil) ⇒ GradientRegion

Creates a new empty region



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# File 'lib/ctioga2/graphics/elements/gradient-region.rb', line 46

def initialize(parent = nil, root = nil)
  @parent = parent
  
  # The curves whose color we should change
  @curves = []

  @root_object = root

  @legend_area = nil

  @start_color = Tioga::ColorConstants::Red
  @end_color = Tioga::ColorConstants::Green

end

Instance Attribute Details

#curves ⇒ Object

The curves which delimit the region



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# File 'lib/ctioga2/graphics/elements/gradient-region.rb', line 40

def curves
  @curves
end

#end_color ⇒ Object

The start and end colors



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# File 'lib/ctioga2/graphics/elements/gradient-region.rb', line 43

def end_color
  @end_color
end

#start_color ⇒ Object

The start and end colors



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# File 'lib/ctioga2/graphics/elements/gradient-region.rb', line 43

def start_color
  @start_color
end

Instance Method Details

#add_element(element) ⇒ Object

Adds an element. Actually forwards it to the parent.



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# File 'lib/ctioga2/graphics/elements/gradient-region.rb', line 62

def add_element(element)
  parent.add_element(element)
  if element.respond_to?(:curve_style)
    @curves << element
  end
end

#set_from_hash(hash) ⇒ Object

Sets the various things from hash.



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# File 'lib/ctioga2/graphics/elements/gradient-region.rb', line 70

def set_from_hash(hash)
end