Class: JSONTreeView

Attributes

expanded	[RW]	Returns true, if nodes are autoexpanding, false otherwise.
window	[R]	Returns the MainWindow instance of this JSONTreeView.

Public Class methods

new(window)

Creates a JSONTreeView instance, the parameter window is a MainWindow instance and used for self delegation.

[Source]

# File lib/json/editor.rb, line 701
      def initialize(window)
        @window = window
        super(TreeStore.new(Gdk::Pixbuf, String, String))
        self.selection.mode = SELECTION_BROWSE

        @expanded = false
        self.headers_visible = false
        add_columns
        add_popup_menu
      end

Public Instance methods

ask_for_element(parent = nil, default_type = nil, value_text = @content)

Ask for an element to be appended parent.

[Source]

# File lib/json/editor.rb, line 897
      def ask_for_element(parent = nil, default_type = nil, value_text = @content)
        type_input = value_input = nil

        dialog = Dialog.new(
          "New element into #{parent ? parent.type : 'root'}",
          nil, nil,
          [ Stock::OK, Dialog::RESPONSE_ACCEPT ],
          [ Stock::CANCEL, Dialog::RESPONSE_REJECT ]
        )
        hbox = HBox.new(false, 5)
        hbox.pack_start(Label.new("Type:"), false)
        hbox.pack_start(type_input = ComboBox.new(true))
        default_active = 0
        types = parent ? ALL_TYPES : CONTAINER_TYPES
        types.each_with_index do |t, i|
          type_input.append_text(t)
          if t == default_type
            default_active = i
          end
        end
        type_input.active = default_active
        dialog.vbox.pack_start(hbox, false)
        type_input.signal_connect(:changed) do
          configure_value(value_input, types[type_input.active])
        end

        hbox = HBox.new(false, 5)
        hbox.pack_start(Label.new("Value:"), false)
        hbox.pack_start(value_input = Entry.new)
        value_input.width_chars = 60
        value_input.text = value_text if value_text
        configure_value(value_input, types[type_input.active])

        dialog.vbox.pack_start(hbox, false)

        dialog.signal_connect('key-press-event''key-press-event', &DEFAULT_DIALOG_KEY_PRESS_HANDLER)
        dialog.show_all
        self.focus = dialog
        dialog.run do |response| 
          if response == Dialog::RESPONSE_ACCEPT
            type = types[type_input.active]
            @content = case type
            when 'Numeric'
              Integer(value_input.text) rescue Float(value_input.text) rescue 0
            else
              value_input.text
            end.to_s
            return type, @content
          end
        end
        return
      ensure
        dialog.destroy if dialog
      end

ask_for_find_term(search = nil)

Ask for a find term to search for in the tree. Returns the term as a string.

[Source]

# File lib/json/editor.rb, line 988
      def ask_for_find_term(search = nil)
        dialog = Dialog.new(
          "Find a node matching regex in tree.",
          nil, nil,
          [ Stock::OK, Dialog::RESPONSE_ACCEPT ],
          [ Stock::CANCEL, Dialog::RESPONSE_REJECT ]
        )
        hbox = HBox.new(false, 5)

        hbox.pack_start(Label.new("Regex:"), false)
        hbox.pack_start(regex_input = Entry.new)
        hbox.pack_start(icase_checkbox = CheckButton.new('Icase'), false)
        regex_input.width_chars = 60
        if search
          regex_input.text = search.source
          icase_checkbox.active = search.casefold?
        end

        dialog.vbox.pack_start(hbox, false)

        dialog.signal_connect('key-press-event''key-press-event', &DEFAULT_DIALOG_KEY_PRESS_HANDLER)
        dialog.show_all
        self.focus = dialog
        dialog.run do |response| 
          if response == Dialog::RESPONSE_ACCEPT
            begin
              return Regexp.new(regex_input.text, icase_checkbox.active? ? Regexp::IGNORECASE : 0)
            rescue => e
              Editor.error_dialog(self, "Evaluation of regex /#{regex_input.text}/ failed: #{e}!")
              return
            end
          end
        end
        return
      ensure
        dialog.destroy if dialog
      end

ask_for_hash_pair(parent)

Ask for a hash key, value pair to be added to the Hash node parent.

[Source]

# File lib/json/editor.rb, line 826
      def ask_for_hash_pair(parent)
        key_input = type_input = value_input = nil

        dialog = Dialog.new("New (key, value) pair for Hash", nil, nil,
          [ Stock::OK, Dialog::RESPONSE_ACCEPT ],
          [ Stock::CANCEL, Dialog::RESPONSE_REJECT ]
        )
        dialog.width_request = 640

        hbox = HBox.new(false, 5)
        hbox.pack_start(Label.new("Key:"), false)
        hbox.pack_start(key_input = Entry.new)
        key_input.text = @key || ''
        dialog.vbox.pack_start(hbox, false)
        key_input.signal_connect(:activate) do
          if parent.any? { |c| c.content == key_input.text }
            toplevel.display_status('Key already exists in Hash!')
            key_input.text = ''
          else
            toplevel.display_status('Key has been changed.')
          end
        end

        hbox = HBox.new(false, 5)
        hbox.pack_start(Label.new("Type:"), false)
        hbox.pack_start(type_input = ComboBox.new(true))
        ALL_TYPES.each { |t| type_input.append_text(t) }
        type_input.active = @type || 0
        dialog.vbox.pack_start(hbox, false)

        type_input.signal_connect(:changed) do
          value_input.editable = false
          case ALL_TYPES[type_input.active]
          when 'Array', 'Hash'
            value_input.text = ''
          when 'TrueClass'
            value_input.text = 'true'
          when 'FalseClass'
            value_input.text = 'false'
          when 'NilClass'
            value_input.text = 'null'
          else
            value_input.text = ''
            value_input.editable = true
          end
        end

        hbox = HBox.new(false, 5)
        hbox.pack_start(Label.new("Value:"), false)
        hbox.pack_start(value_input = Entry.new)
        value_input.width_chars = 60
        value_input.text = @value || ''
        dialog.vbox.pack_start(hbox, false)

        dialog.signal_connect('key-press-event''key-press-event', &DEFAULT_DIALOG_KEY_PRESS_HANDLER)
        dialog.show_all
        self.focus = dialog
        dialog.run do |response| 
          if response == Dialog::RESPONSE_ACCEPT
            @key = key_input.text
            type = ALL_TYPES[@type = type_input.active]
            content = value_input.text
            return @key, type, content
          end
        end
        return
      ensure
        dialog.destroy
      end

ask_for_order()

Ask for an order criteria for sorting, using x for the element in question. Returns the order criterium, and true/false for reverse sorting.

[Source]

# File lib/json/editor.rb, line 955
      def ask_for_order
        dialog = Dialog.new(
          "Give an order criterium for 'x'.",
          nil, nil,
          [ Stock::OK, Dialog::RESPONSE_ACCEPT ],
          [ Stock::CANCEL, Dialog::RESPONSE_REJECT ]
        )
        hbox = HBox.new(false, 5)

        hbox.pack_start(Label.new("Order:"), false)
        hbox.pack_start(order_input = Entry.new)
        order_input.text = @order || 'x'
        order_input.width_chars = 60

        hbox.pack_start(reverse_checkbox = CheckButton.new('Reverse'), false)

        dialog.vbox.pack_start(hbox, false)

        dialog.signal_connect('key-press-event''key-press-event', &DEFAULT_DIALOG_KEY_PRESS_HANDLER)
        dialog.show_all
        self.focus = dialog
        dialog.run do |response| 
          if response == Dialog::RESPONSE_ACCEPT
            return @order = order_input.text, reverse_checkbox.active?
          end
        end
        return
      ensure
        dialog.destroy if dialog
      end

create_node(parent, type, content)

Create a type node with content content, and add it to parent in the model. If parent is nil, create a new model and put it into the editor treeview.

[Source]

# File lib/json/editor.rb, line 812
      def create_node(parent, type, content)
        iter = if parent
          model.append(parent)
        else
          new_model = Editor.data2model(nil)
          toplevel.view_new_model(new_model)
          new_model.iter_first
        end
        iter.type, iter.content = type, content
        expand_collapse(parent) if parent
        iter
      end

expand_collapse(iter)

Expand or collapse row pointed to by iter according to the expanded attribute.

[Source]

# File lib/json/editor.rb, line 1028
      def expand_collapse(iter)
        if expanded
          expand_row(iter.path, true)
        else
          collapse_row(iter.path)
        end
      end

Methods

Included Modules

Attributes

Public Class methods

Public Instance methods