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Contents
module Redcar
class Treebook
include Redcar::Observable
include Redcar::Model
attr_reader :trees, :focussed_tree
def initialize
@trees = []
@focussed_tree = nil
end
# Add a tree to this treebook
#
# @param [Redcar::Tree]
def add_tree(tree)
@trees << tree
@focussed_tree = tree
notify_listeners(:tree_added, tree)
end
# Bring the tree to the front
#
# @param [Redcar::Tree]
def focus_tree(tree)
@focussed_tree = tree
notify_listeners(:tree_focussed, tree)
end
# Remove a tree from this treebook
#
# @param [Redcar::Tree]
def remove_tree(tree)
if @trees.include?(tree)
@trees.delete(tree)
notify_listeners(:tree_removed, tree)
if tree == focussed_tree
focus_tree(trees.first) if trees.any?
end
end
end
private
# Tell the Treebook that this tree has been focussed in the GUI.
def set_focussed_tree(tree)
@focussed_tree = tree
end
end
end
Version data entries
25 entries across 25 versions & 1 rubygems