Class: Alexandria::UI::SmartLibraryRuleBox

Inherits:
Object
  • Object
show all
Defined in:
lib/alexandria/ui/smart_library_rule_box.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parent) ⇒ SmartLibraryRuleBox

Returns a new instance of SmartLibraryRuleBox.



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 15

def initialize(parent)
  @parent = parent

  self.rule_box = Gtk::Box.new :horizontal
  rule_box.spacing = 8

  self.left_operand_combo = Gtk::ComboBoxText.new
  self.operator_combo = Gtk::ComboBoxText.new

  self.value_entry = Gtk::Entry.new

  self.date_entry = Gtk::Entry.new.tap do |entry|
    entry.primary_icon_name = Gtk::Stock::EDIT

    entry.primary_icon_activatable = true
    entry.signal_connect("icon-press") do |widget, primary, icon|
      @parent.handle_date_icon_press(widget, primary, icon)
    end
  end

  self.entry_label = Gtk::Label.new("")

  self.add_button = Gtk::Button.new(label: "").tap do |widget|
    widget.remove(widget.children.first)
    widget << Gtk::Image.new(stock: Gtk::Stock::ADD,
                             size: Gtk::IconSize::BUTTON)

    widget.signal_connect("clicked") { @parent.handle_add_rule_clicked }
  end

  self.remove_button = Gtk::Button.new(label: "")
  remove_button.remove(remove_button.children.first)
  remove_button << Gtk::Image.new(stock: Gtk::Stock::REMOVE,
                                  size: Gtk::IconSize::BUTTON)

  remove_button.signal_connect("clicked") do |_button|
    @parent.handle_remove_rule_clicked(self)
  end

  operands.each do |operand|
    left_operand_combo.append_text(operand.name)
  end

  operator_combo.signal_connect("changed") do
    handle_operator_changed
  end

  left_operand_combo.signal_connect("changed") do
    handle_left_operand_changed
  end

  rule_box.pack_start(left_operand_combo, expand: false, fill: false)
  rule_box.pack_start(operator_combo, expand: false, fill: false)
  rule_box.pack_start(value_entry)
  rule_box.pack_start(date_entry)
  rule_box.pack_start(entry_label, expand: false, fill: false)
  rule_box.pack_end(remove_button, expand: false, fill: false)
  rule_box.pack_end(add_button, expand: false, fill: false)

  value_entry.visible = date_entry.visible = entry_label.visible = false
end

Instance Attribute Details

#add_button ⇒ Object

Returns the value of attribute add_button.



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 10

def add_button
  @add_button
end

#date_entry ⇒ Object

Returns the value of attribute date_entry.



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 10

def date_entry
  @date_entry
end

#entry_label ⇒ Object

Returns the value of attribute entry_label.



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 10

def entry_label
  @entry_label
end

#left_operand_combo ⇒ Object

Returns the value of attribute left_operand_combo.



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 10

def left_operand_combo
  @left_operand_combo
end

#operator_combo ⇒ Object

Returns the value of attribute operator_combo.



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 10

def operator_combo
  @operator_combo
end

#remove_button ⇒ Object

Returns the value of attribute remove_button.



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 10

def remove_button
  @remove_button
end

#rule_box ⇒ Object

Returns the value of attribute rule_box.



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 10

def rule_box
  @rule_box
end

#value_entry ⇒ Object

Returns the value of attribute value_entry.



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 10

def value_entry
  @value_entry
end

Instance Method Details

#handle_left_operand_changed ⇒ Object 



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 105

def handle_left_operand_changed
  operand = operands[left_operand_combo.active]
  operator_combo.freeze_notify do
    operator_combo.remove_all
    operations = SmartLibrary::Rule.operations_for_operand(operand)
    operations.each do |operation|
      operator = operation.first
      operator_combo.append_text(operator.name)
    end
    operator_combo.active = 0
  end
end

#handle_operator_changed ⇒ Object 



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 81

def handle_operator_changed
  operand = operands[left_operand_combo.active]
  operations = SmartLibrary::Rule.operations_for_operand(operand)
  operation = operations[operator_combo.active]

  value_entry.visible = date_entry.visible = entry_label.visible = false
  right_operand = operation.last
  unless right_operand.nil?
    entry = case right_operand.klass.name
            when "Time"
              date_entry
            else
              value_entry
            end
    entry.visible = true
    unless right_operand.name.nil?
      entry_label.text = right_operand.name
      entry_label.visible = true
    end
  end

  @parent.apply_smart_rule_for_rule_box(rule_box, operand, operation)
end

#operands ⇒ Object 



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# File 'lib/alexandria/ui/smart_library_rule_box.rb', line 77

def operands
  SmartLibrary::Rule::Operands::LEFT
end