Class: OroGen::HTML::Type

Inherits:
Object
  • Object
show all
Defined in:
lib/orogen/html/type.rb

Overview

Rendering object that converts a Typelib type, along with the typekit information, into a HTML page.

It needs to be given a page object which has basic services

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(page) ⇒ Type


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# File 'lib/orogen/html/type.rb', line 19

def initialize(page)
    @page = page

    template_path = File.join(File.dirname(__FILE__), "type_fragment.page")
    @template = ERB.new(File.read(template_path))
    template.filename = template_path
    fragment_path = File.join(File.dirname(__FILE__), "type_definition_fragment.page")
    @definition_template = ERB.new(File.read(fragment_path))
    definition_template.filename = fragment_path

    @produced_by = []
    @consumed_by = []
    @displayed_by = []
end

Instance Attribute Details

#consumed_byObject (readonly)

Returns the value of attribute consumed_by


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# File 'lib/orogen/html/type.rb', line 14

def consumed_by
  @consumed_by
end

#definition_templateObject (readonly)

Returns the value of attribute definition_template


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# File 'lib/orogen/html/type.rb', line 17

def definition_template
  @definition_template
end

#displayed_byObject (readonly)

Returns the value of attribute displayed_by


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# File 'lib/orogen/html/type.rb', line 15

def displayed_by
  @displayed_by
end

#intermediate_typeObject (readonly)

Returns the value of attribute intermediate_type


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# File 'lib/orogen/html/type.rb', line 11

def intermediate_type
  @intermediate_type
end

#pageObject (readonly)

Returns the value of attribute page


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# File 'lib/orogen/html/type.rb', line 8

def page
  @page
end

#produced_byObject (readonly)

Returns the value of attribute produced_by


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# File 'lib/orogen/html/type.rb', line 13

def produced_by
  @produced_by
end

#ruby_typeObject (readonly)

Returns the value of attribute ruby_type


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# File 'lib/orogen/html/type.rb', line 12

def ruby_type
  @ruby_type
end

#templateObject (readonly)

Returns the value of attribute template


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# File 'lib/orogen/html/type.rb', line 16

def template
  @template
end

#typeObject (readonly)

Returns the value of attribute type


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# File 'lib/orogen/html/type.rb', line 9

def type
  @type
end

Instance Method Details

#has_convertions?(type, recursive = true) ⇒ Boolean


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# File 'lib/orogen/html/type.rb', line 34

def has_convertions?(type, recursive = true)
    if type <= Typelib::NumericType
        return false
    elsif type.convertion_to_ruby
        return true
    end
    return if !recursive

    if type < Typelib::CompoundType
        type.enum_for(:each_field).any? do |field_name, field_type|
            has_convertions?(field_type, false)
        end
    elsif type < Typelib::EnumType
        false
    elsif type.respond_to?(:deference)
        return has_convertions?(type.deference, false)
    else
        false
    end
end

#render(type, options = Hash.new) ⇒ Object


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# File 'lib/orogen/html/type.rb', line 131

def render(type, options = Hash.new)
    _, push_options = Kernel.filter_options options, :external_objects => nil
    @type = type
    base = self.type
    typekit = begin Orocos.load_typekit_for(base, false)
              rescue Orocos::TypekitTypeNotFound
              end

    @intermediate_type, @ruby_type = nil
    if base.contains_opaques?
        @intermediate_type = typekit.intermediate_type_for(type)
        if has_convertions?(intermediate_type)
            @ruby_type = intermediate_type
        end
    elsif has_convertions?(base)
        @ruby_type = base
    end

    page.push(nil, template.result(binding), push_options)
end

#render_convertion_spec(base_type, convertion) ⇒ Object


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# File 'lib/orogen/html/type.rb', line 55

def render_convertion_spec(base_type, convertion)
    if spec = convertion[0]
        if spec == Array
            # The base type is most likely an array or a container.
            # Display the element type as well ...
            if base_type.respond_to?(:deference)
                if subconv = base_type.deference.convertion_to_ruby
                    return "Array(#{render_convertion_spec(base_type.deference, subconv)})"
                else
                    return "Array(#{page.link_to(base_type.deference)})"
                end
            end
        end
        convertion[0].name

    else
        "converted to an unspecified type"
    end
end

#render_type_convertion(type) ⇒ Object


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# File 'lib/orogen/html/type.rb', line 75

def render_type_convertion(type)
    result = []
    if convertion = type.convertion_to_ruby
        result << render_convertion_spec(type, convertion)
    elsif type < Typelib::CompoundType
        result << "<ul class=\"body-header-list\">"
        type.each_field do |field_name, field_type|
            if convertion = field_type.convertion_to_ruby
                result << page.render_item(field_name, render_convertion_spec(field_type, convertion))
            else
                result << page.render_item(field_name, page.link_to(field_type))
            end
        end
        result << "</ul>"
    elsif type < Typelib::ArrayType
        result << "<ul class=\"body-header-list\">"
        deference =
            if convertion = type.deference.convertion_to_ruby
                render_convertion_spec(type.deference, convertion)
            else
                render_convertion_spec(type.deference, [Array])
            end
        result << "<li>#{deference}[#{type.length}]</li>"
        result << "</ul>"
    elsif type < Typelib::ContainerType
        result << "<ul class=\"body-header-list\">"
        deference =
            if convertion = type.deference.convertion_to_ruby
                render_convertion_spec(type.deference, convertion)
            else
                page.link_to(type.deference)
            end
        result << "<li>Array(#{deference})</li>"
        result << "</ul>"
    else
        raise NotImplementedError
    end
    result.join("\n")
end

#render_type_definition_fragment(type) ⇒ Object


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# File 'lib/orogen/html/type.rb', line 115

def render_type_definition_fragment(type)
    definition_template.result(binding)
end

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# File 'lib/orogen/html/type.rb', line 119

def render_type_link(type)
    if type < Typelib::ArrayType
        "#{render_type_link(type.deference)}[#{type.length}]"
    elsif type < Typelib::ContainerType
        "#{type.container_kind}&lt;#{render_type_link(type.deference)}&gt;"
    elsif type < Typelib::NumericType
        type.name
    else
        page.link_to(type)
    end
end