Class: Glimmer::Swing::ShapeProxy

Inherits:
Object
  • Object
show all
Includes:
Packages
Defined in:
lib/glimmer/swing/shape_proxy.rb

Overview

Proxy for Java2D shape objects

Follows the Proxy Design Pattern

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Packages

included

Constructor Details

#initialize(parent, keyword, *args, &block) ⇒ ShapeProxy

Returns a new instance of ShapeProxy.



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# File 'lib/glimmer/swing/shape_proxy.rb', line 103

def initialize(parent, keyword, *args, &block)
  @parent_proxy = parent
  @keyword = keyword
  @args = args
  @block = block
  build
  post_add_content if @block.nil?
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args, &block) ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 131

def method_missing(method_name, *args, &block)
  if @original.respond_to?("set_#{method_name}", true) && !args.empty?
    send_to_original("set_#{method_name}", *args, &block)
  elsif @original.respond_to?(method_name, true)
    send_to_original(method_name, *args, &block)
  else
    super
  end
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/glimmer/swing/shape_proxy.rb', line 101

def args
  @args
end

#block ⇒ Object (readonly)

Returns the value of attribute block.



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# File 'lib/glimmer/swing/shape_proxy.rb', line 101

def block
  @block
end

#keyword ⇒ Object (readonly)

Returns the value of attribute keyword.



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# File 'lib/glimmer/swing/shape_proxy.rb', line 101

def keyword
  @keyword
end

#original ⇒ Object (readonly)

Returns the value of attribute original.



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# File 'lib/glimmer/swing/shape_proxy.rb', line 101

def original
  @original
end

#parent_proxy ⇒ Object (readonly)

Returns the value of attribute parent_proxy.



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# File 'lib/glimmer/swing/shape_proxy.rb', line 101

def parent_proxy
  @parent_proxy
end

Class Method Details

.create(parent, keyword, *args, &block) ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 37

def create(parent, keyword, *args, &block)
  shape_proxy_class(keyword).new(parent, keyword, *args, &block)
end

.exist?(keyword) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swing/shape_proxy.rb', line 33

def exist?(keyword)
  !!shape_class(keyword)
end

.flyweight_shape_class ⇒ Object

Flyweight Design Pattern memoization cache. Can be cleared if memory is needed.



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# File 'lib/glimmer/swing/shape_proxy.rb', line 96

def flyweight_shape_class
  @flyweight_shape_class ||= {}
end

.keyword(shape_proxy_class) ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 59

def keyword(shape_proxy_class)
  shape_proxy_class.to_s.underscore.sub(/_proxy$/, '')
end

.shape_class(keyword) ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 71

def shape_class(keyword)
  unless flyweight_shape_class.keys.include?(keyword)
    begin
      shape_class_name = shape_class_symbol(keyword).to_s
      shape_class = eval("#{shape_class_name}2D::Double") rescue eval(shape_class_name)
      unless shape_class.ancestors.include?(Java::JavaAwt::Shape)
        shape_class = shape_class_manual_entries[keyword]
        if shape_class.nil?
          Glimmer::Config.logger.debug {"Class #{shape_class} matching #{keyword} is not a subclass of java.awt.Component"}
          return nil
        end
      end
      flyweight_shape_class[keyword] = shape_class
    rescue SyntaxError, NameError => e
      Glimmer::Config.logger.debug {e.full_message}
      nil
    rescue => e
      Glimmer::Config.logger.debug {e.full_message}
      nil
    end
  end
  flyweight_shape_class[keyword]
end

.shape_class_manual_entries ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 63

def shape_class_manual_entries
  # add mappings for any classes (minus the namespace) that conflict with standard Ruby classes
  {
    # example:
    # 'date_time' => Java::OrgEclipseSwtWidgets::DateTime
  }
end

.shape_class_symbol(keyword) ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 55

def shape_class_symbol(keyword)
  keyword.camelcase(:upper).to_sym
end

.shape_proxy_class(keyword) ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 41

def shape_proxy_class(keyword)
  begin
    class_name = shape_proxy_class_symbol(keyword)
    Glimmer::Swing::ShapeProxy.const_get(class_name)
  rescue => e
    Glimmer::Config.logger.debug e.full_message
    Glimmer::Swing::ShapeProxy
  end
end

.shape_proxy_class_symbol(keyword) ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 51

def shape_proxy_class_symbol(keyword)
  "#{keyword.camelcase(:upper)}Proxy".to_sym
end

Instance Method Details

#content(&block) ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 145

def content(&block)
  Glimmer::DSL::Engine.add_content(self, Glimmer::DSL::Swing::ShapeExpression.new, @keyword, &block)
end

#draw_paint ⇒ Object Also known as: draw_color 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 162

def draw_paint
  @draw_paint
end

#draw_paint=(*args) ⇒ Object Also known as: draw_color= 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 157

def draw_paint=(*args)
  @draw_paint = Color.new(*args)
end

#fill_paint ⇒ Object Also known as: fill_color 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 172

def fill_paint
  @fill_paint
end

#fill_paint=(*args) ⇒ Object Also known as: fill_color= 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 167

def fill_paint=(*args)
  @fill_paint = Color.new(*args)
end

#post_add_content ⇒ Object

Subclasses may override to perform post add_content work (normally must call super)



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# File 'lib/glimmer/swing/shape_proxy.rb', line 113

def post_add_content
  @parent_proxy&.post_initialize_child(self)
end

#post_initialize_child(child) ⇒ Object

Subclasses may override to perform post initialization work on an added child (normally must also call super)



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# File 'lib/glimmer/swing/shape_proxy.rb', line 118

def post_initialize_child(child)
  @original.append(child.original, false) if @original&.is_a?(Path2D) && child.is_a?(ShapeProxy)
end

#respond_to?(method_name, *args, &block) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swing/shape_proxy.rb', line 122

def respond_to?(method_name, *args, &block)
  respond_to_original?(method_name, *args, &block) ||
    super(method_name, true)
end

#respond_to_original?(method_name, *args, &block) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swing/shape_proxy.rb', line 127

def respond_to_original?(method_name, *args, &block)
  @original.respond_to?(method_name, true) || @original.respond_to?("set_#{method_name}", true)
end

#send_to_original(method_name, *args, &block) ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 141

def send_to_original(method_name, *args, &block)
  @original.send(method_name, *normalize_args(args), &block)
end

#stroke ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 153

def stroke
  @stroke
end

#stroke=(*args) ⇒ Object 



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# File 'lib/glimmer/swing/shape_proxy.rb', line 149

def stroke=(*args)
  @stroke = BasicStroke.new(*args)
end