Module: Editor

data2model(data, model = nil, parent = nil) {|model| ...}

Convert the Ruby data structure data into tree model data for Gtk and returns the whole model. If the parameter model wasn‘t given a new Gtk::TreeStore is created as the model. The parent parameter specifies the parent node (iter, Gtk:TreeIter instance) to which the data is appended, alternativeley the result of the yielded block is used as iter.

[Source]

# File lib/json/editor.rb, line 121
    def Editor.data2model(data, model = nil, parent = nil)
      model ||= TreeStore.new(Gdk::Pixbuf, String, String)
      iter = if block_given?
        yield model
      else
        model.append(parent)
      end
      case data
      when Hash
        iter.type = 'Hash'
        data.sort.each do |key, value|
          pair_iter = model.append(iter)
          pair_iter.type    = 'Key'
          pair_iter.content = key.to_s
          Editor.data2model(value, model, pair_iter)
        end
      when Array
        iter.type = 'Array'
        data.each do |value|
          Editor.data2model(value, model, iter)
        end
      when Numeric
        iter.type = 'Numeric'
        iter.content = data.to_s
      when String, true, false, nil
        iter.type    = data.class.name
        iter.content = data.nil? ? 'null' : data.to_s
      else
        iter.type    = 'String'
        iter.content = data.to_s
      end
      model
    end

error_dialog(window, text)

Opens an error dialog on top of window showing the error message text.

[Source]

# File lib/json/editor.rb, line 50
    def Editor.error_dialog(window, text)
      dialog = MessageDialog.new(window, Dialog::MODAL, 
        MessageDialog::ERROR, 
        MessageDialog::BUTTONS_CLOSE, text)
      dialog.show_all
      dialog.run
    rescue TypeError
      dialog = MessageDialog.new(Editor.window, Dialog::MODAL, 
        MessageDialog::ERROR, 
        MessageDialog::BUTTONS_CLOSE, text)
      dialog.show_all
      dialog.run
    ensure
      dialog.destroy if dialog
    end

fetch_icon(name)

Returns the Gdk::Pixbuf of the icon named name from the icon cache.

[Source]

# File lib/json/editor.rb, line 39
    def Editor.fetch_icon(name)
      @icon_cache ||= {}
      unless @icon_cache.key?(name)
        path = File.dirname(__FILE__)
        @icon_cache[name] = Gdk::Pixbuf.new(File.join(path, name + '.xpm'))
      end
     @icon_cache[name]
    end

model2data(iter)

Convert the tree model starting from Gtk::TreeIter iter into a Ruby data structure and return it.

[Source]

# File lib/json/editor.rb, line 83
    def Editor.model2data(iter)
      return nil if iter.nil?
      case iter.type
      when 'Hash'
        hash = {}
        iter.each { |c| hash[c.content] = Editor.model2data(c.first_child) }
        hash
      when 'Array'
        array = Array.new(iter.n_children)
        iter.each_with_index { |c, i| array[i] = Editor.model2data(c) }
        array
      when 'Key'
        iter.content
      when 'String'
        iter.content
      when 'Numeric'
        content = iter.content
        if /\./.match(content)
          content.to_f
        else
          content.to_i
        end
      when 'TrueClass'
        true
      when 'FalseClass'
        false
      when 'NilClass'
        nil
      else
        fail "Unknown type found in model: #{iter.type}"
      end
    end

question_dialog(window, text)

Opens a yes/no question dialog on top of window showing the error message text. If yes was answered true is returned, otherwise false.

[Source]

# File lib/json/editor.rb, line 69
    def Editor.question_dialog(window, text)
      dialog = MessageDialog.new(window, Dialog::MODAL, 
        MessageDialog::QUESTION, 
        MessageDialog::BUTTONS_YES_NO, text)
      dialog.show_all
      dialog.run do |response|
        return Gtk::Dialog::RESPONSE_YES === response
      end
    ensure
      dialog.destroy if dialog
    end

Methods

Public Class methods