# class Tk::BLT::Tree::Trace

### Constants

TraceID_TBL

### Public Class Methods

id2obj(tree, id) click to toggle source

    # File lib/tkextlib/blt/tree.rb, line 479
    def self.id2obj(tree, id)
      tpath = tree.path
      TraceID_TBL.mutex.synchronize{
        if TraceID_TBL[tpath]
          if TraceID_TBL[tpath][id]
            TraceID_TBL[tpath][id]
          else
            begin
              # self.new([tree, id])
              (obj = self.allocate).instance_eval{
                @parent = @tree = tree
                @tpath = @parent.path
                @path = @id = node  # == traceID
                TraceID_TBL[@tpath] ||= {}
                TraceID_TBL[@tpath][@id] = self
              }
              obj
            rescue
              id
            end
          end
        else
          id
        end
      }
    end

new(tree, *args, &b) click to toggle source

    # File lib/tkextlib/blt/tree.rb, line 506
    def self.new(tree, *args, &b)
      TraceID_TBL.mutex.synchronize{
        if tree.kind_of?(Array)
          # not create
          tpath = tree[0].path
          TraceID_TBL[tpath] ||= {}
          unless (obj = TraceID_TBL[tpath][tree[1]])
            (TraceID_TBL[tpath][tree[1]] =
               obj = self.allocate).instance_eval{
              @parent = @tree = tree
              @tpath = @parent.path
              @path = @id = tree[1]  # == traceID
            }
          end
          return obj
        end

        # super(true, tree, *args, &b)
        (obj = self.allocate).instance_eval{
          initialize(tree, *args, &b)
          TraceID_TBL[@tpath] ||= {}
          TraceID_TBL[@tpath][@id] = self
        }
        return obj
      }
    end

new(tree, node, key, opts, cmd=nil, &b) click to toggle source

    # File lib/tkextlib/blt/tree.rb, line 533
    def initialize(tree, node, key, opts, cmd=nil, &b)
      @parent = @tree = tree
      @tpath = @parent.path

      if !cmd
        if b
          cmd = Proc.new(&b)
        else
          fail ArgumentError, "lack of 'command' argument"
        end
      end

      @path = @id = tk_call(@tpath, 'trace', 'create', node, key, opts,
                            proc{|t, id, k, ops|
                              tobj = Tk::BLT::Tree.id2obj(t)
                              if tobj.kind_of?(Tk::BLT::Tree)
                                nobj = Tk::BLT::Tree::Node.id2obj(tobj, id)
                              else
                                nobj = id
                              end
                              cmd.call(tobj, nobj, k, ops)
                            })
    end

### Public Instance Methods

delete() click to toggle source

    # File lib/tkextlib/blt/tree.rb, line 561
    def delete()
      tk_call(@tpath, 'trace', 'delete', @id)
      TraceID_TBL.mutex.synchronize{
        TraceID_TBL[tpath].delete(@id)
      }
      self
    end

id() click to toggle source

    # File lib/tkextlib/blt/tree.rb, line 557
    def id
      @id
    end

info() click to toggle source

    # File lib/tkextlib/blt/tree.rb, line 569
    def info()
      lst = simplelist(tk_call(@tpath, 'trace', 'info', id))
      lst[0] = Tk::BLT::Tree::Trace.id2obj(@tree, lst[0])
      lst[2] = simplelist(lst[2])
      lst[3] = tk_tcl2ruby(lst[3])
      lst
    end