Class: Glimmer::SWT::TableProxy

Inherits:
WidgetProxy show all
Includes:
Glimmer
Defined in:
lib/glimmer/swt/table_proxy.rb

Defined Under Namespace

Modules: TableListenerEvent

Constant Summary

Constants included from Glimmer

GUI

Constants inherited from WidgetProxy

WidgetProxy::DEFAULT_INITIALIZERS, WidgetProxy::DEFAULT_STYLES, WidgetProxy::KEYWORD_ALIASES

Instance Attribute Summary collapse

Attributes inherited from WidgetProxy

#drag_source_proxy, #drag_source_style, #drag_source_transfer, #drop_target_proxy, #drop_target_transfer, #finished_add_content, #parent_proxy, #swt_widget

Attributes included from Custom::Drawable

#image_double_buffered, #requires_shape_disposal

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Glimmer

included

Methods inherited from WidgetProxy

#add_observer, #async_exec, #auto_exec, #can_add_observer?, #can_handle_drag_observation_request?, #can_handle_drop_observation_request?, #can_handle_observation_request?, #content, create, #dispose, #disposed?, #ensure_drag_source_proxy, #ensure_drop_target_proxy, #extract_args, #finish_add_content!, flyweight_swt_widget_classes, #get_attribute, #handle_observation_request, #has_attribute?, #has_style?, #height, #method_missing, #pack_same_size, #print, #proxy_source_object, #remove_observer, #respond_to?, #set_attribute, #shell_proxy, swt_widget_class_for, swt_widget_class_manual_entries, #sync_exec, #timer_exec, underscored_widget_name, #widget_bindings, widget_exists?, #widget_property_listener_installers, widget_proxy_class, #width, #x, #y

Methods included from Custom::Drawable

#add_shape, #clear_shapes, #deregister_shape_painting, #drop_shapes, #expanded_shapes, #image_buffered_shapes, #paint_pixel_by_pixel, #setup_shape_painting, #shape_at_location, #shapes, #swt_drawable

Methods included from ProxyProperties

#get_attribute, #has_attribute?, #has_attribute_getter?, #has_attribute_setter?, #method_missing, #proxy_source_object, #respond_to?, #set_attribute

Methods included from Properties

attribute_getter, #attribute_getter, attribute_setter, #attribute_setter, normalized_attribute, #normalized_attribute, ruby_attribute_getter, #ruby_attribute_setter, ruby_attribute_setter

Methods included from Packages

included

Constructor Details

#initialize(underscored_widget_name, parent, args) ⇒ TableProxy

Returns a new instance of TableProxy.



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# File 'lib/glimmer/swt/table_proxy.rb', line 254

def initialize(underscored_widget_name, parent, args)
  editable_style = args.delete(:editable)
  super
  @table_editor = TableEditor.new(swt_widget)
  @table_editor.horizontalAlignment = SWTProxy[:left]
  @table_editor.grabHorizontal = true
  @table_editor.minimumHeight = 20
  self.editable = editable_style
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Glimmer::SWT::WidgetProxy

Instance Attribute Details

#additional_sort_properties ⇒ Object

Returns the value of attribute additional_sort_properties.



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# File 'lib/glimmer/swt/table_proxy.rb', line 248

def additional_sort_properties
  @additional_sort_properties
end

#column_properties ⇒ Object Also known as: column_attributes 



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# File 'lib/glimmer/swt/table_proxy.rb', line 264

def column_properties
  if @column_properties.nil?
    swt_widget.columns.to_a.map(&:text).map(&:underscore)
  elsif @column_properties.is_a?(Hash)
    @column_properties = swt_widget.columns.to_a.map(&:text).map do |column_name|
      @column_properties[column_name] || column_name.underscore
    end
  else
    @column_properties
  end
end

#editable ⇒ Object Also known as: editable?

Returns the value of attribute editable.



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# File 'lib/glimmer/swt/table_proxy.rb', line 248

def editable
  @editable
end

#editor ⇒ Object

Returns the value of attribute editor.



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# File 'lib/glimmer/swt/table_proxy.rb', line 248

def editor
  @editor
end

#sort_block ⇒ Object

Returns the value of attribute sort_block.



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# File 'lib/glimmer/swt/table_proxy.rb', line 248

def sort_block
  @sort_block
end

#sort_by_block ⇒ Object

Returns the value of attribute sort_by_block.



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# File 'lib/glimmer/swt/table_proxy.rb', line 248

def sort_by_block
  @sort_by_block
end

#sort_direction ⇒ Object (readonly)

Returns the value of attribute sort_direction.



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# File 'lib/glimmer/swt/table_proxy.rb', line 248

def sort_direction
  @sort_direction
end

#sort_property ⇒ Object

Returns the value of attribute sort_property.



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# File 'lib/glimmer/swt/table_proxy.rb', line 248

def sort_property
  @sort_property
end

#sort_strategy ⇒ Object

Returns the value of attribute sort_strategy.



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# File 'lib/glimmer/swt/table_proxy.rb', line 250

def sort_strategy
  @sort_strategy
end

#sort_type ⇒ Object (readonly)

Returns the value of attribute sort_type.



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# File 'lib/glimmer/swt/table_proxy.rb', line 248

def sort_type
  @sort_type
end

#table_editor ⇒ Object (readonly)

Returns the value of attribute table_editor.



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# File 'lib/glimmer/swt/table_proxy.rb', line 248

def table_editor
  @table_editor
end

#table_editor_widget_proxy ⇒ Object (readonly)

Returns the value of attribute table_editor_widget_proxy.



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# File 'lib/glimmer/swt/table_proxy.rb', line 248

def table_editor_widget_proxy
  @table_editor_widget_proxy
end

#table_items_binding ⇒ Object

Returns the value of attribute table_items_binding.



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# File 'lib/glimmer/swt/table_proxy.rb', line 250

def table_items_binding
  @table_items_binding
end

Class Method Details

.editors ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 58

def editors
  @editors ||= {
    # ensure editor can work with string keys not just symbols (leave one string in for testing)
    'text' => {
      widget_value_property: :text,
      editor_gui: lambda do |args, model, property, table_proxy|
        table_proxy.table_editor.minimumHeight = 20
        table_editor_widget_proxy = text(*args) {
          text model.send(property)
          focus true
          on_focus_lost {
            table_proxy.finish_edit!
          }
          on_key_pressed { |key_event|
            if key_event.keyCode == swt(:cr)
              table_proxy.finish_edit!
            elsif key_event.keyCode == swt(:esc)
              table_proxy.cancel_edit!
            end
          }
        }
        table_editor_widget_proxy.swt_widget.selectAll
        table_editor_widget_proxy
      end,
    },
    combo: {
      widget_value_property: :text,
      editor_gui: lambda do |args, model, property, table_proxy|
        first_time = true
        table_proxy.table_editor.minimumHeight = 25
        table_editor_widget_proxy = combo(*args) {
          items model.send("#{property}_options")
          text model.send(property)
          focus true
          on_focus_lost {
            table_proxy.finish_edit!
          }
          on_key_pressed { |key_event|
            if key_event.keyCode == swt(:cr)
              table_proxy.finish_edit!
            elsif key_event.keyCode == swt(:esc)
              table_proxy.cancel_edit!
            end
          }
          on_widget_selected {
            if !OS.windows? || !first_time || first_time && model.send(property) != table_editor_widget_proxy.swt_widget.text
              table_proxy.finish_edit!
            end
          }
        }
        table_editor_widget_proxy
      end,
    },
    checkbox: {
      widget_value_property: :selection,
      editor_gui: lambda do |args, model, property, table_proxy|
        first_time = true
        table_proxy.table_editor.minimumHeight = 25
        checkbox(*args) {
          selection model.send(property)
          focus true
          on_widget_selected {
            table_proxy.finish_edit!
          }
          on_focus_lost {
            table_proxy.finish_edit!
          }
          on_key_pressed { |key_event|
            if key_event.keyCode == swt(:cr)
              table_proxy.finish_edit!
            elsif key_event.keyCode == swt(:esc)
              table_proxy.cancel_edit!
            end
          }
        }
      end,
    },
    date: {
      widget_value_property: :date_time,
      editor_gui: lambda do |args, model, property, table_proxy|
        first_time = true
        table_proxy.table_editor.minimumHeight = 25
        date(*args) {
          date_time model.send(property)
          focus true
          on_focus_lost {
            table_proxy.finish_edit!
          }
          on_key_pressed { |key_event|
            if key_event.keyCode == swt(:cr)
              table_proxy.finish_edit!
            elsif key_event.keyCode == swt(:esc)
              table_proxy.cancel_edit!
            end
          }
        }
      end,
    },
    date_drop_down: {
      widget_value_property: :date_time,
      editor_gui: lambda do |args, model, property, table_proxy|
        first_time = true
        table_proxy.table_editor.minimumHeight = 25
        date_drop_down(*args) {
          date_time model.send(property)
          focus true
          on_focus_lost {
            table_proxy.finish_edit!
          }
          on_key_pressed { |key_event|
            if key_event.keyCode == swt(:cr)
              table_proxy.finish_edit!
            elsif key_event.keyCode == swt(:esc)
              table_proxy.cancel_edit!
            end
          }
        }
      end,
    },
    time: {
      widget_value_property: :date_time,
      editor_gui: lambda do |args, model, property, table_proxy|
        first_time = true
        table_proxy.table_editor.minimumHeight = 25
        time(*args) {
          date_time model.send(property)
          focus true
          on_focus_lost {
            table_proxy.finish_edit!
          }
          on_key_pressed { |key_event|
            if key_event.keyCode == swt(:cr)
              table_proxy.finish_edit!
            elsif key_event.keyCode == swt(:esc)
              table_proxy.cancel_edit!
            end
          }
        }
      end,
    },
    radio: {
      widget_value_property: :selection,
      editor_gui: lambda do |args, model, property, table_proxy|
        first_time = true
        table_proxy.table_editor.minimumHeight = 25
        radio(*args) {
          selection model.send(property)
          focus true
          on_widget_selected {
            table_proxy.finish_edit!
          }
          on_focus_lost {
            table_proxy.finish_edit!
          }
          on_key_pressed { |key_event|
            if key_event.keyCode == swt(:cr)
              table_proxy.finish_edit!
            elsif key_event.keyCode == swt(:esc)
              table_proxy.cancel_edit!
            end
          }
        }
      end,
    },
    spinner: {
      widget_value_property: :selection,
      editor_gui: lambda do |args, model, property, table_proxy|
        first_time = true
        table_proxy.table_editor.minimumHeight = 25
        table_editor_widget_proxy = (*args) {
          selection model.send(property)
          focus true
          on_focus_lost {
            table_proxy.finish_edit!
          }
          on_key_pressed { |key_event|
            if key_event.keyCode == swt(:cr)
              table_proxy.finish_edit!
            elsif key_event.keyCode == swt(:esc)
              table_proxy.cancel_edit!
            end
          }
        }
        table_editor_widget_proxy
      end,
    },
  }
end

Instance Method Details

#add_listener(underscored_listener_name, &block) ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 596

def add_listener(underscored_listener_name, &block)
  enhanced_block = lambda do |event|
    event.extend(TableListenerEvent)
    block.call(event)
  end
  super(underscored_listener_name, &enhanced_block)
end

#all_table_items ⇒ Object

Returns all table items including descendants



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# File 'lib/glimmer/swt/table_proxy.rb', line 474

def all_table_items
  search
end

#cancel_edit! ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 497

def cancel_edit!
  @cancel_edit&.call if @edit_mode
end

#cells ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 457

def cells
  column_count = @table.column_properties.size
  auto_exec do
    swt_widget.items.map {|item| column_count.times.map {|i| item.get_text(i)} }
  end
end

#cells_for(model, table_item_property: :text) ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 447

def cells_for(model, table_item_property: :text)
  if table_item_property.to_s == 'text'
    column_properties.map {|column_property| model.send(column_property)}
  else
    column_properties.map do |column_property|
      model.send("#{column_property}_#{table_item_property}") if model.respond_to?("#{column_property}_#{table_item_property}")
    end
  end
end

#column_sort_properties ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 336

def column_sort_properties
  column_properties.zip(table_column_proxies.map(&:sort_property)).map do |pair|
    [pair.compact.last].flatten.compact
  end
end

#detect_sort_type ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 320

def detect_sort_type
  @sort_type = sort_property.size.times.map { String }
  array = model_binding.evaluate_property
  sort_property.each_with_index do |a_sort_property, i|
    values = array.map { |object| object.send(a_sort_property) }
    value_classes = values.map(&:class).uniq
    if value_classes.size == 1
      @sort_type[i] = value_classes.first
    elsif value_classes.include?(Integer)
      @sort_type[i] = Integer
    elsif value_classes.include?(Float)
      @sort_type[i] = Float
    end
  end
end

#edit_in_progress? ⇒ Boolean

Indicates if table is editing a table item because the user hit ENTER or focused out after making a change in edit mode to a table item cell. It is set to false once change is saved to model

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swt/table_proxy.rb', line 507

def edit_in_progress?
  !!@edit_in_progress
end

#edit_mode? ⇒ Boolean

Indicates if table is in edit mode, thus displaying a text widget for a table item cell

Returns:

  • (Boolean) 


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# File 'lib/glimmer/swt/table_proxy.rb', line 493

def edit_mode?
  !!@edit_mode
end

#edit_selected_table_item(column_index, before_write: nil, after_write: nil, after_cancel: nil) ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 511

def edit_selected_table_item(column_index, before_write: nil, after_write: nil, after_cancel: nil)
  auto_exec do
    edit_table_item(swt_widget.getSelection.first, column_index, before_write: before_write, after_write: after_write, after_cancel: after_cancel)
  end
end

#edit_table_item(table_item, column_index, before_write: nil, after_write: nil, after_cancel: nil, write_on_cancel: false) ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 517

def edit_table_item(table_item, column_index, before_write: nil, after_write: nil, after_cancel: nil, write_on_cancel: false)
  return if table_item.nil?
  model = table_item.data
  property = column_properties[column_index]
  cancel_edit!
  return unless table_column_proxies[column_index].editable?
  action_taken = false
  @edit_mode = true
  
  editor_config = table_column_proxies[column_index].editor || editor
  editor_config = editor_config.to_a
  editor_widget_options = editor_config.last.is_a?(Hash) ? editor_config.last : {}
  editor_widget_arg_last_index = editor_config.last.is_a?(Hash) ? -2 : -1
  editor_widget = (editor_config[0] || :text).to_sym
  editor_widget_args = editor_config[1..editor_widget_arg_last_index]
  model_editing_property = editor_widget_options[:property] || property
  widget_value_property = TableProxy::editors.symbolize_keys[editor_widget][:widget_value_property]
  
  @cancel_edit = lambda do |event=nil|
    if write_on_cancel
      @finish_edit.call(event)
    else
      @cancel_in_progress = true
      @table_editor_widget_proxy&.swt_widget&.dispose
      @table_editor_widget_proxy = nil
      if after_cancel&.arity == 0
        after_cancel&.call
      else
        after_cancel&.call(table_item)
      end
      @edit_in_progress = false
      @cancel_in_progress = false
      @cancel_edit = nil
      @edit_mode = false
    end
  end
  
  @finish_edit = lambda do |event=nil|
    new_value = @table_editor_widget_proxy&.send(widget_value_property)
    if table_item.isDisposed
      @cancel_edit.call unless write_on_cancel
    elsif !new_value.nil? && !action_taken && !@edit_in_progress && !@cancel_in_progress
      action_taken = true
      @edit_in_progress = true
      if new_value == model.send(model_editing_property)
        @cancel_edit.call unless write_on_cancel
      else
        if before_write&.arity == 0
          before_write&.call
        else
          before_write&.call(edited_table_item)
        end
        model.send("#{model_editing_property}=", new_value) # makes table update itself, so must search for selected table item again
        # Table refresh happens here because of model update triggering observers, so must retrieve table item again
        edited_table_item = search { |ti| ti.getData == model }.first
        auto_exec do
          swt_widget.showItem(edited_table_item)
        end
        @table_editor_widget_proxy&.swt_widget&.dispose
        @table_editor_widget_proxy = nil
        if after_write&.arity == 0
          after_write&.call
        else
          after_write&.call(edited_table_item)
        end
        @edit_in_progress = false
      end
    end
  end
  
  content {
    @table_editor_widget_proxy = TableProxy::editors.symbolize_keys[editor_widget][:editor_gui].call(editor_widget_args, model, model_editing_property, self)
  }
  @table_editor.setEditor(@table_editor_widget_proxy.swt_widget, table_item, column_index)
rescue => e
  Glimmer::Config.logger.error {e.full_message}
  raise e
end

#finish_edit! ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 501

def finish_edit!
  @finish_edit&.call if @edit_mode
end

#initial_sort! ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 391

def initial_sort!
  sort_by_column!
end

#items ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 277

def items
  auto_exec do
    swt_widget.get_items
  end
end

#model_binding ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 283

def model_binding
  auto_exec do
    swt_widget.data
  end
end

#no_sort=(value) ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 437

def no_sort=(value)
  table_column_proxies.each do |table_column_proxy|
    table_column_proxy.no_sort = value
  end
end

#post_add_content ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 482

def post_add_content
  return if @initially_sorted
  initial_sort!
  @initially_sorted = true
end

#post_initialize_child(table_column_proxy) ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 478

def post_initialize_child(table_column_proxy)
  table_column_proxies << table_column_proxy
end

#search(&condition) ⇒ Object

Performs a search for table items matching block condition If no condition block is passed, returns all table items Returns a Java TableItem array to easily set as selection on org.eclipse.swt.Table if needed



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# File 'lib/glimmer/swt/table_proxy.rb', line 467

def search(&condition)
  auto_exec do
    swt_widget.getItems.select {|item| condition.nil? || condition.call(item)}.to_java(TableItem)
  end
end

#sort!(internal_sort: false) ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 399

def sort!(internal_sort: false)
  return unless sort_property && (sort_type || sort_block || sort_by_block)
  if sort_strategy
    sort_strategy.call
  else
    original_array = array = model_binding.evaluate_property
    array = array.sort_by(&:hash) # this ensures consistent subsequent sorting in case there are equivalent sorts to avoid an infinite loop
    # Converting value to_s first to handle nil cases. Should work with numeric, boolean, and date fields
    if sort_block
      sorted_array = array.sort(&sort_block)
    elsif sort_by_block
      sorted_array = array.sort_by(&sort_by_block)
    else
      sorted_array = array.sort_by do |object|
        sort_property.each_with_index.map do |a_sort_property, i|
          value = object.send(a_sort_property)
          # handle nil and difficult to compare types gracefully
          if sort_type[i] == Integer
            value = value.to_i
          elsif sort_type[i] == Float
            value = value.to_f
          elsif sort_type[i] == String
            value = value.to_s.downcase
          end
          value
        end
      end
    end
    sorted_array = sorted_array.reverse if sort_direction == :descending
    if model_binding.binding_options.symbolize_keys[:read_only_sort]
      table_items_binding.call(sorted_array, internal_sort: true) unless internal_sort
    else
      model_binding.call(sorted_array)
    end
    sorted_array
  end
end

#sort_by_column!(table_column_proxy = nil) ⇒ Object

Sorts by specified TableColumnProxy object. If nil, it uses the table default sort instead.



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# File 'lib/glimmer/swt/table_proxy.rb', line 343

def sort_by_column!(table_column_proxy=nil)
  index = nil
  auto_exec do
    index = swt_widget.columns.to_a.index(table_column_proxy.swt_widget) unless table_column_proxy.nil?
  end
  new_sort_property = table_column_proxy.nil? ? @sort_property : table_column_proxy.sort_property || [column_properties[index]]
  return if table_column_proxy.nil? && new_sort_property.nil? && @sort_block.nil? && @sort_by_block.nil?
  if new_sort_property && table_column_proxy.nil? && new_sort_property.size == 1 && (index = column_sort_properties.index(new_sort_property))
    table_column_proxy = table_column_proxies[index]
  end
  if new_sort_property && new_sort_property.size == 1 && !additional_sort_properties.to_a.empty?
    selected_additional_sort_properties = additional_sort_properties.clone
    if selected_additional_sort_properties.include?(new_sort_property.first)
      selected_additional_sort_properties.delete(new_sort_property.first)
      new_sort_property += selected_additional_sort_properties
    else
      new_sort_property += additional_sort_properties
    end
  end
  
  @sort_direction = @sort_direction.nil? || @sort_property.first != new_sort_property.first || @sort_direction == :descending ? :ascending : :descending
  auto_exec do
    swt_widget.sort_direction = @sort_direction == :ascending ? SWTProxy[:up] : SWTProxy[:down]
  end
  
  @sort_property = [new_sort_property].flatten.compact
  table_column_index = column_properties.index(new_sort_property.to_s.to_sym)
  table_column_proxy ||= table_column_proxies[table_column_index] if table_column_index
  auto_exec do
    swt_widget.sort_column = table_column_proxy.swt_widget if table_column_proxy
  end
          
  if table_column_proxy
    @sort_by_block = nil
    @sort_block = nil
  end
  @sort_type = nil
  if table_column_proxy&.sort_by_block
    @sort_by_block = table_column_proxy.sort_by_block
  elsif table_column_proxy&.sort_block
    @sort_block = table_column_proxy.sort_block
  else
    detect_sort_type
  end
          
  sort!
end

#table_column_proxies ⇒ Object 



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# File 'lib/glimmer/swt/table_proxy.rb', line 488

def table_column_proxies
  @table_column_proxies ||= []
end