Class Rumai::View < WidgetNode

# File lib/rumai/wm.rb, line 628
        def self.curr
          new FOCUSED_WIDGET_ID
        end

# File lib/rumai/wm.rb, line 667
      def initialize view_id
        super view_id, '/tag'
      end

# File lib/rumai/wm.rb, line 709
        def area_ids
          manifest.scan(/^# (\d+)/).flatten.unshift(FLOATING_AREA_ID)
        end

# File lib/rumai/wm.rb, line 692
        def area_of_client client_or_id
          arg =
            if client_or_id.respond_to? :id
              client_or_id.id
            else
              client_or_id
            end

          manifest =~ /^(\S+) #{arg}/
          if area_id = $1
            Area.new area_id, self
          end
        end

# File lib/rumai/wm.rb, line 716
        def areas
          area_ids.map! {|i| Area.new i, self }
        end

# File lib/rumai/wm.rb, line 768
        def arrange_as_larswm
          maintain_focus do
            # keep only one client in the primary column
            main = Area.new(1, self)
            main.length = 1
            main.layout = :default

            # collapse remaining areas into secondary column
            extra = columns[1..-1]

            if extra.length > 1
              extra.reverse.each_cons(2) do |src, dst|
                dst.concat src
              end
            end

            if dock = extra.first
              dock.layout = :default
            end
          end
        end

# File lib/rumai/wm.rb, line 822
        def arrange_in_diamond
          num_clients = num_managed_clients
          return unless num_clients > 1

          # determine dimensions of the rising sub-triangle
          rise = num_clients / 2

          span = sum = 0
          1.upto rise do |h|
            if sum + h > rise
              break
            else
              sum += h
              span += 1
            end
          end

          peak = num_clients - (sum * 2)

          # describe the overall triangle as a sequence of heights
          rise_seq = (1..span).to_a
          fall_seq = rise_seq.reverse

          heights = rise_seq
          heights << peak if peak > 0
          heights.concat fall_seq

          # apply the heights
          maintain_focus do
            each_column do |col|
              if h = heights.shift
                col.length = h
                col.layout = :default
              end
            end
          end
        end

# File lib/rumai/wm.rb, line 794
        def arrange_in_grid max_clients_per_column = nil
          # compute client distribution
          unless max_clients_per_column
            num_clients = num_managed_clients
            return unless num_clients > 0

            num_columns = Math.sqrt(num_clients)
            max_clients_per_column = (num_clients / num_columns).round
          end

          return if max_clients_per_column < 1

          # apply the distribution
          maintain_focus do
            each_column do |a|
              a.length = max_clients_per_column
              a.layout = :default
            end
          end
        end

# File lib/rumai/wm.rb, line 644
        def chain
          Rumai.views
        end

# File lib/rumai/wm.rb, line 654
        def client_ids area_id = '\S+'
          manifest.scan(/^#{area_id} (0x\S+)/).flatten
        end

# File lib/rumai/wm.rb, line 730
        def columns
          areas[1..-1]
        end

# File lib/rumai/wm.rb, line 663
        def each &block
          areas.each(&block)
        end

# File lib/rumai/wm.rb, line 741
        def each_column starting_column_id = 1
          i = starting_column_id
          loop do
            a = Area.new i, self

            if a.exist?
              yield a
            else
              break
            end

            i += 1
          end
        end

# File lib/rumai/wm.rb, line 723
        def floating_area
          Area.floating self
        end

# File lib/rumai/wm.rb, line 635
        def focus
          IXP_FS_ROOT.ctl.write "view #{@id}"
        end

# File lib/rumai/wm.rb, line 676
        def manifest
          index.read || ''
        end

# File lib/rumai/wm.rb, line 683
        def select direction
          ctl.write "select #{direction}"
        end