Class: OFlow::Graffle

Inherits:
Object
  • Object
show all
Defined in:
lib/oflow/graffle.rb

Defined Under Namespace

Classes: Element, LineInfo, TaskInfo

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(env, filename, doc) ⇒ Graffle

Returns a new instance of Graffle.

Raises:



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# File 'lib/oflow/graffle.rb', line 17

def initialize(env, filename, doc)
  @line_info = { } # key is id
  @task_info = { } # key is id
  @name = File.basename(filename, '.graffle')

  nodes = doc.locate('plist/dict')[0].nodes
  nodes = Graffle.get_key_value(nodes, 'GraphicsList')

  raise ConfigError.new("Empty flow.") if nodes.nil?
  
  nodes.each do |node|
    load_node(node)
  end

  # set label in lines
  task_info.each do |id,ti|
    next if ti.line_id.nil?
    if !(li = line_info[ti.line_id]).nil?
      li.label, li.op = ti.first_option
    end
  end
  task_info.each do |_, ti|
    if ti.name.nil? && !(n = ti.options[:flow]).nil?
      @name = n.strip
    end
  end
  env.flow(@name.to_sym) { |f|
    task_info.each_value { |ti|
      next unless ti.line_id.nil?
      next if ti.name.nil?
      c = ti.get_class()
      next if c.nil?
      f.task(ti.name, c, ti.options) { |t|
        t.bounds = ti.bounds
        t.color = ti.color
        t.shape = ti.shape
        line_info.each_value { |li|
          next unless li.tail == ti.id
          target_info = task_info[li.head]
          if target_info.nil?
            flow_name, task_name, op = li.op.split('/')
            t.link(li.label, task_name, op, flow_name)
          else
            t.link(li.label, target_info.name, li.op)
          end
        }
      }
    }
  }
end

Instance Attribute Details

#line_info ⇒ Object

Returns the value of attribute line_info.



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# File 'lib/oflow/graffle.rb', line 8

def line_info
  @line_info
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/oflow/graffle.rb', line 7

def name
  @name
end

#task_info ⇒ Object

Returns the value of attribute task_info.



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# File 'lib/oflow/graffle.rb', line 9

def task_info
  @task_info
end

Class Method Details

.get_key_value(nodes, key) ⇒ Object 



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# File 'lib/oflow/graffle.rb', line 89

def self.get_key_value(nodes, key)
  return if nodes.nil?
  nodes.each_with_index do |node,i|
    next unless 'key' == node.name && key == node.text
    n = nodes[i + 1]
    if 'dict' == n.name || 'array' == n.name
      return n.nodes
    else
      return n.text
    end
  end
  nil
end

.get_text(nodes) ⇒ Object 



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# File 'lib/oflow/graffle.rb', line 103

def self.get_text(nodes)
  return nil if nodes.nil?
  strip_rtf(get_key_value(nodes, 'Text'))
end

.load(env, filename) ⇒ Object 



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# File 'lib/oflow/graffle.rb', line 11

def self.load(env, filename)
  doc = Ox.load_file(filename, mode: :generic)
  g = Graffle.new(env, filename, doc)
  env.debug(g.to_s()) if Logger::Severity::DEBUG >= ::OFlow::Env.log_level
end

.rtf_ctrl_char(ctrl) ⇒ Object 



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# File 'lib/oflow/graffle.rb', line 168

def self.rtf_ctrl_char(ctrl)
  c = ''
  case ctrl
  when '', 'line'
    c = "\n"
  when 'tab'
    c = "\t"
  else
    if "'" == ctrl[0]
      c = ctrl[1..3].hex().chr
    end
  end
  c
end

.strip_rtf(rtf) ⇒ Object 



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# File 'lib/oflow/graffle.rb', line 108

def self.strip_rtf(rtf)
  return rtf unless rtf.start_with?('{\rtf')
  depth = 0
  txt = ''
  ctrl = nil
  str = nil
  rtf.each_char do |c|
    case c
    when ' '
      if !str.nil?
        str << ' ' unless 1 < depth
      elsif !ctrl.nil?
        txt << rtf_ctrl_char(ctrl) unless 1 < depth
        ctrl = nil
        str = ''
      else
        str = ''
      end
    when "\n", "\r"
      if !str.nil? # should not happen but...
        str << "\n" unless 1 < depth
      elsif !ctrl.nil?
        txt << rtf_ctrl_char(ctrl) unless 1 < depth
        ctrl = nil
      end
    when '\\'
      if !str.nil?
        txt << str unless 1 < depth
        str = nil
      elsif !ctrl.nil?
        txt << rtf_ctrl_char(ctrl) unless 1 < depth
      end
      ctrl = ''
    when '{'
      if !ctrl.nil?
        txt << rtf_ctrl_char(ctrl) unless 1 < depth
        ctrl = nil
      end
      depth += 1
    when '}'
      if !ctrl.nil?
        txt << rtf_ctrl_char(ctrl) unless 1 < depth
        ctrl = nil
      end
      depth -= 1
    else
      if !ctrl.nil?
        ctrl << c
      elsif 1 < depth
        # ignore
      else
        str = '' if str.nil?
        str << c
      end
    end
  end
  txt << str unless str.nil?
  txt
end

Instance Method Details

#load_node(node) ⇒ Object 



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# File 'lib/oflow/graffle.rb', line 68

def load_node(node)
  nodes = node.nodes
  case Graffle.get_key_value(nodes, 'Class')
  when 'LineGraphic'
    line = LineInfo.new(nodes)
    @line_info[line.id] = line
  when 'ShapedGraphic'
    task = TaskInfo.new(nodes)
    @task_info[task.id] = task unless task.nil?
  end
end

#to_s ⇒ Object 



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# File 'lib/oflow/graffle.rb', line 80

def to_s()
  s = "Graffle{\n  name: #{@name}\n  tasks{\n"
  task_info.each { |_,ti| s += "    #{ti}\n" }
  s += "  }\n  lines{\n"
  line_info.each { |_,li| s += "    #{li}\n" }
  s += "  }\n}\n"
  s
end