Module: Iup::AttributeBuilders

Included in:
DragDropAttributes, ScrollBarAttributes, Timer, Widget
Defined in:
lib/wrapped/attribute-builders.rb

Overview

methods to help construct attribute methods

Instance Method Summary collapse

Instance Method Details

#define_attribute(name) ⇒ Object

Given the name of an attribute, this method creates reader and writer methods.



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# File 'lib/wrapped/attribute-builders.rb', line 9

def define_attribute name
  define_reader name
  define_writer name
end

#define_id_attribute(name) ⇒ Object

Given the name of an attribute, this method creates a new method requiring an id number as a parameter and an optional value. Providing the value will set the named attribute for this object using the id number, e.g. “ITEM1”, or else the current value will be returned. This supports attributes such as “ITEM1” “ITEM2” by making the id number a parameter.



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# File 'lib/wrapped/attribute-builders.rb', line 35

def define_id_attribute name
  define_method "#{name}" do |id, val=nil|
    if val.nil?
      IupLib.IupGetAttribute(@handle, "#{name}#{id}".upcase).first
    else
      IupLib.IupSetAttribute(@handle, "#{name}#{id}".upcase, val.to_s)
    end
  end
end

#define_id_reader(name) ⇒ Object

Creates a reader method for an indexed attribute. Note: index starts from 1, as in IUP. This supports attributes such as “ITEM1” “ITEM2” by making the id number a parameter.



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# File 'lib/wrapped/attribute-builders.rb', line 48

def define_id_reader name
  define_method "#{name}" do |id|
    IupLib.IupGetAttribute(@handle, "#{name}#{id}".upcase).first
  end
end

#define_id_writer(name) ⇒ Object

Creates a writer method for an indexed attribute. Note: index starts from 1, as in IUP. This supports attributes such as “ITEM1” “ITEM2” by making the id number a parameter.



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# File 'lib/wrapped/attribute-builders.rb', line 57

def define_id_writer name
  define_method "#{name}" do |id, val|
    IupLib.IupSetAttribute(@handle, "#{name}#{id}".upcase, val.to_s)
  end
end

#define_property_attribute(name) ⇒ Object

Creates reader/writer method for a property attribute.



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# File 'lib/wrapped/attribute-builders.rb', line 64

def define_property_attribute name
  attribute = name.to_s.upcase
  define_method "#{name}" do |property, val=nil|
    if val.nil?
      IupLib.IupSetAttribute(@handle, attribute, property.upcase).first
    else
      IupLib.IupSetAttribute(@handle, attribute, "#{property}=#{val}".upcase)
    end
  end
end

#define_property_reader(name) ⇒ Object

Creates a reader method for a property attribute. This supports attributes such as “ITEM=val”, providing a parameter for the property name.



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# File 'lib/wrapped/attribute-builders.rb', line 77

def define_property_reader name
  attribute = name.to_s.upcase
  define_method "#{name}" do |property|
    IupLib.IupGetAttribute(@handle, attribute, property.upcase).first
  end
end

#define_property_writer(name) ⇒ Object

Creates a writer method for a property attribute. This supports attributes such as “ITEM=val”, providing a parameter for the property name.



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# File 'lib/wrapped/attribute-builders.rb', line 86

def define_property_writer name
  attribute = name.to_s.upcase
  define_method "#{name}" do |property, val|
    IupLib.IupSetAttribute(@handle, attribute, "#{property}=#{val}".upcase)
  end
end

#define_reader(name) ⇒ Object

Creates a reader method for attribute of given name.



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# File 'lib/wrapped/attribute-builders.rb', line 15

def define_reader name
  attribute = name.to_s.upcase
  define_method name do
    IupLib.IupGetAttribute(@handle, attribute).first
  end
end

#define_writer(name) ⇒ Object

Creates a writer method for attribute of given name.



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# File 'lib/wrapped/attribute-builders.rb', line 23

def define_writer name
  attribute = name.to_s.upcase
  define_method "#{name}=" do |val|
    IupLib.IupSetAttribute(@handle, attribute, val.to_s)
  end
end