Class: Microstation::Element

Inherits:
Object
  • Object
show all
Includes:
ElementTrait
Defined in:
lib/microstation/element.rb

Direct Known Subclasses

Arc, BSplineCurve, BSplineSurface, Cell, Ellipse, Line, Tag, Text, TextNode

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from ElementTrait

#cell?, #complex?, #graphical?, #has_tags?, #id_from_record, #line?, #microstation_id, #microstation_type, #model, #parent, #select, #text?, #text_node?, #textual?, #to_ole

Constructor Details

#initialize(ole, app, cell = nil) ⇒ Element

Returns a new instance of Element.



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# File 'lib/microstation/element.rb', line 137

def initialize(ole, app, cell = nil)
  @ole_obj = ole
  @original = read_ole(ole)
  @app = app
  @cell = cell
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

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



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# File 'lib/microstation/element.rb', line 154

def method_missing(meth, *args, &block)
  if /^[A-Z]/.match?(meth.to_s)
    result = ole_obj.send(meth, *args, &block)
    Element.convert_item(result, app)
  else
    super(meth, *args, &block)
  end
end

Instance Attribute Details

#app ⇒ Object (readonly)

Returns the value of attribute app.



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# File 'lib/microstation/element.rb', line 135

def app
  @app
end

#ole_obj ⇒ Object (readonly)

Returns the value of attribute ole_obj.



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# File 'lib/microstation/element.rb', line 135

def ole_obj
  @ole_obj
end

#original ⇒ Object (readonly)

Returns the value of attribute original.



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# File 'lib/microstation/element.rb', line 135

def original
  @original
end

Class Method Details

.convert_item(ole, app, cell = nil) ⇒ Object 



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# File 'lib/microstation/element.rb', line 100

def self.convert_item(ole, app, cell = nil)
  return Point3d.from_ole(ole) if ole.instance_of?(WIN32OLE_RECORD) && ole.typename == "Point3d"
  return ole unless ole.instance_of?(WIN32OLE)

  case ole.Type
  when ::Microstation::MSD::MsdElementTypeText
    ::Microstation::Text.new(ole, app, cell)
  when ::Microstation::MSD::MsdElementTypeLine
    ::Microstation::Line.new(ole, app, cell)
  when ::Microstation::MSD::MsdElementTypeTextNode
    ::Microstation::TextNode.new(ole, app, cell)
  when ::Microstation::MSD::MsdElementTypeTag
    ::Microstation::Tag.new(ole, app, cell)
  when ::Microstation::MSD::MsdElementTypeCellHeader
    ::Microstation::Cell.new(ole, app, cell)
  when ::Microstation::MSD::MsdElementTypeSharedCell
    ::Microstation::Cell.new(ole, app, cell)
  when ::Microstation::MSD::MsdElementTypeArc
    ::Microstation::Arc.new(ole, app, cell)
  when ::Microstation::MSD::MsdElementTypeEllipse
    ::Microstation::Ellipse.new(ole, app, cell)
  when ::Microstation::MSD::MsdElementTypeBsplineSurface
    ::Microstation::BSplineSurface.new(ole, app, cell)
  when ::Microstation::MSD::MsdElementTypeBsplineCurve
    ::Microstation::BSplineCurve.new(ole, app, cell)

  else
    new(ole, app, cell)
  end
end

.ole_object? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/microstation/element.rb', line 131

def self.ole_object?
  ole.instance_of?(WIN32OLE)
end

Instance Method Details

#[](name) ⇒ Object 



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# File 'lib/microstation/element.rb', line 172

def [](name)
  property_handler[name]
end

#app_ole_obj ⇒ Object 



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# File 'lib/microstation/element.rb', line 215

def app_ole_obj
  app.ole_obj
end

#do_update(value) ⇒ Object 



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# File 'lib/microstation/element.rb', line 176

def do_update(value)
  return false if value == original

  saved_original = original
  begin
    write_ole(value)
    @original = read_ole(ole_obj)
    true
  rescue => e
    @original = saved_original
    false
  end
end

#each(ole = ole_obj, &block) ⇒ Object 



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# File 'lib/microstation/element.rb', line 244

def each(ole = ole_obj, &block)
  return unless ole.IsComplexElement
  return to_enum(:each) unless block

  if ole.IsCellElement
    each_cell(ole, &block)
  else
    each_complex(ole, &block)
  end
end

#each_cell(ole, &block) ⇒ Object 



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# File 'lib/microstation/element.rb', line 223

def each_cell(ole, &block)
  cell = ole if ole_cell(ole)
  begin
    ole.ResetElementEnumeration
  rescue
    binding.pry
  end
  while ole.MoveToNextElement
    component = ole.CopyCurrentElement
    if component.IsTextNodeElement
      yield Microstation::Wrap.wrap(component.AsTextNodeElement, app, cell)
    elsif component.IsTextElement
      yield Microstation::Wrap.wrap(component.AsTextElement, app, cell)
    elsif component.IsComplexElement
      each(component)
    else
      yield Microstation::Wrap.wrap(component, app, cell)
    end
  end
end

#each_complex(ole, &block) ⇒ Object 



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# File 'lib/microstation/element.rb', line 255

def each_complex(ole, &block)
  cell = nil
  components = ole.GetSubElements
  while components.MoveNext
    component = components.Current
    if component.IsTextNodeElement
      yield Microstation::Wrap.wrap(component.AsTextNodeElement, app, cell)
    elsif component.IsTextElement
      yield Microstation::Wrap.wrap(component.AsTextElement, app, cell)
    elsif component.IsComplexElement
      each(component, &block)
    else
      yield Microstation::Wrap.wrap(component, app, cell)
    end
  end
end

#get_property_handler ⇒ Object 



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# File 'lib/microstation/element.rb', line 163

def get_property_handler
  ph_ole = app_ole_obj.CreatePropertyHandler(ole_obj)
  PropertyHandler.new(ph_ole)
end

#in_cell? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/microstation/element.rb', line 144

def in_cell?
  !!@cell
end

#ole_cell(ole) ⇒ Object 



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# File 'lib/microstation/element.rb', line 219

def ole_cell(ole)
  ole.IsCellElement || ole.IsSharedCellElement
end

#property_handler ⇒ Object 



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# File 'lib/microstation/element.rb', line 168

def property_handler
  @property_handler ||= get_property_handler
end

#read_ole(ole) ⇒ Object 



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# File 'lib/microstation/element.rb', line 148

def read_ole(ole)
end

#redraw(el = ole_obj) ⇒ Object 



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# File 'lib/microstation/element.rb', line 210

def redraw(el = ole_obj)
  el.Redraw ::Microstation::MSD::MsdDrawingModeNormal
  el.Rewrite
end

#update(value) ⇒ Object 



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# File 'lib/microstation/element.rb', line 190

def update(value)
  redraw_el = ole_obj
  if do_update(value)
    if in_cell?
      @cell.ReplaceCurrentElement @ole_obj
      redraw_el = @cell
    end
    redraw(redraw_el)
    @updated = true
    true
  else
    @updated = false
    false
  end
end

#updated? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/microstation/element.rb', line 206

def updated?
  @updated
end

#write_ole(value) ⇒ Object 



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# File 'lib/microstation/element.rb', line 151

def write_ole(value)
end