Class: Redcar::Treebook

Inherits:

Object

• Object
• Redcar::Treebook

show all

Includes:

Model, Observable

Defined in:

plugins/application/lib/application/treebook.rb

Constant Summary

Constant Summary

Constants included from Observable

Observable::ASPECTS

Instance Attribute Summary (collapse)

• - (Object) focussed_tree readonly

  Returns the value of attribute focussed_tree.

• - (Object) trees readonly

  Returns the value of attribute trees.

Attributes included from Model

#controller

Instance Method Summary (collapse)

• - (Object) add_tree(tree)

  Add a tree to this treebook.

• - (Object) focus_tree(tree)

  Bring the tree to the front.

• - (Treebook) initialize constructor

  A new instance of Treebook.

• - (Object) remove_tree(tree)

  Remove a tree from this treebook.

• - (Object) switch_down
• - (Object) switch_up

Methods included from ReentryHelpers

#ignore, #ignore_changes

Methods included from Observable

#add_listener, #notify_listeners, #remove_listener

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# File 'plugins/application/lib/application/treebook.rb', line 8

def initialize
  @trees = []
  @focussed_tree = nil
end

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# File 'plugins/application/lib/application/treebook.rb', line 6

def focussed_tree
  @focussed_tree
end

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# File 'plugins/application/lib/application/treebook.rb', line 6

def trees
  @trees
end

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# File 'plugins/application/lib/application/treebook.rb', line 16

def add_tree(tree)
  @trees << tree
  @focussed_tree = tree
  notify_listeners(:tree_added, tree)
  tree.focus
  Redcar.app.repeat_event(:tree_added) if Redcar.app
end

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# File 'plugins/application/lib/application/treebook.rb', line 27

def focus_tree(tree)
  return if @focussed_tree == tree
  @focussed_tree = tree
  notify_listeners(:tree_focussed, tree)
  tree.focus
end

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# File 'plugins/application/lib/application/treebook.rb', line 37

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
    Redcar.app.repeat_event(:tree_removed) if Redcar.app
  end
end

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# File 'plugins/application/lib/application/treebook.rb', line 48

def switch_down
  if @trees.any?
    if @focussed_tree
      index = @trees.index @focussed_tree
    else
      index = -1
    end
    new_tree_index = index + 1
    new_tree_index = 0 if new_tree_index < 0 or new_tree_index >= @trees.size
    tree = @trees[new_tree_index]
    focus_tree(tree) if tree
  end
end

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# File 'plugins/application/lib/application/treebook.rb', line 62

def switch_up
  if @trees.any?
    if @focussed_tree
      index = @trees.index @focussed_tree
    else
      index = 1
    end
    new_tree_index = index - 1
    new_tree_index = @trees.size - 1 if new_tree_index < 0 or new_tree_index >= @trees.size
    tree = @trees[new_tree_index]
    focus_tree(tree) if tree
  end
end