    indexing
    	description: "[
    					EV_GRID Text label that may be interactively edited by the user via a combo box.

    					To allow the user to edit the item, connect an agent that calls `item' to an action sequence
    					of `Current' such as pointer_button_press_actions.

    					set_item_strings may be used to set the list items used in the combo box before the item is activated.

    					By default a combo box containing the strings set from set_item_strings is displayed, allowing
    					the user to change the text of `Current' by selecting an item within the combo box.

    					The default behavior of the activation may be overriden using activate_actions or `item_activate_actions' (from
    					EV_GRID).

    					By default, combo_box is Void unless the item is being activated, this prevents the need for a persistent combo box
    					widget for each EV_GRID_COMBO_ITEM. combo_box must not be unparented during activation.
    	]"
    	legal: "See notice at end of class."
    	status: "See notice at end of class."
    	date: "$Date: 2006-03-22 23:29:03 -0800 (Wed, 22 Mar 2006) $"
    	revision: "$Revision: 57641 $"

    class interface
    	EV_GRID_COMBO_ITEM

    create
    	default_create
    			-- Standard creation procedure.
    			-- (from EV_ANY)
    		require -- from  ANY
    			True
    		ensure then -- from EV_ANY
    			is_coupled: implementation /= Void
    			is_initialized: is_initialized
    			default_create_called_set: default_create_called
    			is_in_default_state: is_in_default_state

    	make_with_text (a_text: STRING_GENERAL)
    			-- Create `Current' and assign `a_text' to text
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			a_text_not_void: a_text /= Void
    		ensure -- from EV_GRID_LABEL_ITEM
    			text_set: (text.same_type (a_text) implies text = a_text) or else not text.same_type (a_text) implies text.is_equal (a_text)

    feature -- Access

    	background_color: EV_COLOR
    			-- Color displayed behind foreground features.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed

    	column: EV_GRID_COLUMN
    			-- Column to which current item belongs.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    			is_parented: is_parented
    		ensure -- from EV_GRID_ITEM
    			column_not_void: Result /= Void

    	combo_box: EV_COMBO_BOX
    			-- Text field used to edit `Current' on activate
    			-- Void when `Current' isn't being activated.

    	data: ANY
    			-- Arbitrary user data may be stored here.
    			-- (from EV_ANY)

    	foreground_color: EV_COLOR
    			-- Color of foreground features like text.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed

    	generating_type: STRING_8
    			-- Name of current object's generating type
    			-- (type of which it is a direct instance)
    			-- (from ANY)

    	generator: STRING_8
    			-- Name of current object's generating class
    			-- (base class of the type of which it is a direct instance)
    			-- (from ANY)

    	height: INTEGER_32
    			-- Height of `Current' in pixels.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    			parented: is_parented
    		ensure -- from EV_GRID_ITEM
    			result_non_negative: Result >= 0

    	horizontal_indent: INTEGER_32
    			-- Horizontal distance in pixels from left edge of `Current' to left edge of column.
    			-- This may not be set, but the value is determined by the current tree structure
    			-- of parent and row.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    			parented: is_parented
    		ensure -- from EV_GRID_ITEM
    			not_parent_tree_enabled_implies_result_zero: not parent.is_tree_enabled implies Result = 0
    			parent_tree_enabled_implies_result_greater_or_equal_to_zero: parent.is_tree_enabled implies Result >= 0

    	item_strings: INDEXABLE [STRING_GENERAL, INTEGER_32]
    			-- Item strings used to make up combo box list.

    	parent: EV_GRID
    			-- Grid in which `Current' is contained if any.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_CONTAINABLE
    			not_destroyed: not is_destroyed

    	required_width: INTEGER_32
    			-- Width in pixels required to fully display contents, based
    			-- on current settings.
    			-- Note that in some descendents such as EV_GRID_DRAWABLE_ITEM, this
    			-- returns 0. For such items, `set_required_width' is available.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_ITEM
    			result_non_negative: Result >= 0

    	row: EV_GRID_ROW
    			-- Row to which current item belongs.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    			parented: is_parented
    		ensure -- from EV_GRID_ITEM
    			row_not_void: Result /= Void

    	tooltip: STRING_32
    			-- Tooltip displayed on `Current'.
    			-- If `Result' is `Void' or `is_empty' then no tooltip is displayed.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed

    	virtual_x_position: INTEGER_32
    			-- Horizontal offset of `Current' in relation to the
    			-- the virtual area of parent grid in pixels.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    			parented: is_parented
    		ensure -- from EV_GRID_ITEM
    			valid_result: parent /= Void implies Result >= 0 and Result <= parent.virtual_width - column.width + horizontal_indent

    	virtual_y_position: INTEGER_32
    			-- Vertical offset of `Current' in relation to the
    			-- the virtual area of parent grid in pixels.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    			parented: is_parented
    		ensure -- from EV_GRID_ITEM
    			valid_result_when_parent_row_height_fixed: parent /= Void and then parent.is_row_height_fixed implies Result >= 0 and Result <= parent.virtual_height - parent.row_height
    			valid_result_when_parent_row_height_not_fixed: parent /= Void and then not parent.is_row_height_fixed implies Result >= 0 and Result <= parent.virtual_height - row.height

    	width: INTEGER_32
    			-- Width of `Current' in pixels.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    			parented: is_parented
    		ensure -- from EV_GRID_ITEM
    			result_non_negative: Result >= 0

    feature -- Measurement

    	bottom_border: INTEGER_32
    			-- Spacing between the contents of `Current' and the bottom edge of `Current' in pixels.
    			-- (from EV_GRID_LABEL_ITEM)

    	left_border: INTEGER_32
    			-- Spacing between the contents of `Current' and the left edge of `Current' in pixels.
    			-- (from EV_GRID_LABEL_ITEM)

    	right_border: INTEGER_32
    			-- Spacing between the contents of `Current' and the right edge of `Current' in pixels.
    			-- (from EV_GRID_LABEL_ITEM)

    	spacing: INTEGER_32
    			-- Spacing between text and pixmap in pixels.
    			-- If both are not visible, this value does not affect appearance of `Current'.
    			-- (from EV_GRID_LABEL_ITEM)

    	text_height: INTEGER_32
    			-- `Result' is height required to fully display text in `pixels'.
    			-- This function is optimized internally by `Current' and is therefore
    			-- faster than querying `font.string_size' directly.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			result_non_negative: Result >= 0

    	text_width: INTEGER_32
    			-- `Result' is width required to fully display text in `pixels'.
    			-- This function is optimized internally by `Current' and is therefore
    			-- faster than querying `font.string_size' directly.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			result_non_negative: Result >= 0

    	top_border: INTEGER_32
    			-- Spacing between the contents of `Current' and the top edge of `Current' in pixels.
    			-- (from EV_GRID_LABEL_ITEM)

    feature -- Comparison

    	frozen deep_equal (some: ANY; other: like arg #1): BOOLEAN
    			-- Are `some' and `other' either both void
    			-- or attached to isomorphic object structures?
    			-- (from ANY)
    		ensure -- from ANY
    			shallow_implies_deep: standard_equal (some, other) implies Result
    			both_or_none_void: (some = Void) implies (Result = (other = Void))
    			same_type: (Result and (some /= Void)) implies some.same_type (other)
    			symmetric: Result implies deep_equal (other, some)

    	frozen equal (some: ANY; other: like arg #1): BOOLEAN
    			-- Are `some' and `other' either both void or attached
    			-- to objects considered equal?
    			-- (from ANY)
    		ensure -- from ANY
    			definition: Result = (some = Void and other = Void) or else ((some /= Void and other /= Void) and then some.is_equal (other))

    	is_equal (other: like Current): BOOLEAN
    			-- Is `other' attached to an object considered
    			-- equal to current object?
    			-- (from ANY)
    		require -- from ANY
    			other_not_void: other /= Void
    		ensure -- from ANY
    			symmetric: Result implies other.is_equal (Current)
    			consistent: standard_is_equal (other) implies Result

    	frozen standard_equal (some: ANY; other: like arg #1): BOOLEAN
    			-- Are `some' and `other' either both void or attached to
    			-- field-by-field identical objects of the same type?
    			-- Always uses default object comparison criterion.
    			-- (from ANY)
    		ensure -- from ANY
    			definition: Result = (some = Void and other = Void) or else ((some /= Void and other /= Void) and then some.standard_is_equal (other))

    	frozen standard_is_equal (other: like Current): BOOLEAN
    			-- Is `other' attached to an object of the same type
    			-- as current object, and field-by-field identical to it?
    			-- (from ANY)
    		require -- from ANY
    			other_not_void: other /= Void
    		ensure -- from ANY
    			same_type: Result implies same_type (other)
    			symmetric: Result implies other.standard_is_equal (Current)

    feature -- Status report

    	conforms_to (other: ANY): BOOLEAN
    			-- Does type of current object conform to type
    			-- of `other' (as per Eiffel: The Language, chapter 13)?
    			-- (from ANY)
    		require -- from ANY
    			other_not_void: other /= Void

    	font: EV_FONT
    			-- Typeface appearance for `Current'.
    			-- (from EV_GRID_LABEL_ITEM)

    	is_bottom_aligned: BOOLEAN
    			-- Is text of `Current' bottom aligned?
    			-- Ignored during re-draw if layout_procedure /= Void.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed

    	is_center_aligned: BOOLEAN
    			-- Is text of `Current' center aligned?
    			-- Ignored during re-draw if layout_procedure /= Void.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed

    	is_full_select_enabled: BOOLEAN
    			-- Does selection highlighting fill complete area of `Current'?
    			-- If `False', highlighting is only applied to area of text.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed

    	is_left_aligned: BOOLEAN
    			-- Is text of `Current' left aligned?
    			-- Ignored during re-draw if layout_procedure /= Void.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed

    	is_parented: BOOLEAN
    			-- Does current item belong to an EV_GRID?
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed

    	is_right_aligned: BOOLEAN
    			-- Is text of `Current' right aligned?
    			-- Ignored during re-draw if layout_procedure /= Void.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed

    	is_selectable: BOOLEAN
    			-- May enable_select be called?
    			-- (from EV_SELECTABLE)
    		require -- from EV_SELECTABLE
    			not_destroyed: not is_destroyed

    	is_selected: BOOLEAN
    			-- Is selected?
    			-- (from EV_SELECTABLE)
    		require -- from EV_SELECTABLE
    			not_destroyed: not is_destroyed
    		ensure -- from EV_SELECTABLE
    			bridge_ok: is_selectable implies Result = implementation.is_selected

    	is_top_aligned: BOOLEAN
    			-- Is text of `Current' top aligned?
    			-- Ignored during re-draw if layout_procedure /= Void.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed

    	is_vertically_center_aligned: BOOLEAN
    			-- Is text of `Current' vertically center aligned?
    			-- Ignored during re-draw if layout_procedure /= Void.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed

    	layout_procedure: PROCEDURE [ANY, TUPLE [EV_GRID_LABEL_ITEM, EV_GRID_LABEL_ITEM_LAYOUT]]
    			-- Procedure which may be used to calculate the position of text and pixmap relative to `Current',
    			-- ready for the drawing implementation.
    			-- This procedure is fired each time that `Current' must be re-drawn and by filling the passed EV_GRID_LABEL_ITEM_LAYOUT object, the
    			-- position relative to the top left of `Current' at which text and pixmap is to be drawn may be set explicitly.
    			-- The properties set into EV_GRID_LABEL_ITEM override any other positional settings such as the text alignment within `Current'.
    			-- Be sure to query the width and height of text from the label item directly via text_width and text_height as
    			-- this is optimized and quicker than `font.string_size' for repeated calls.
    			-- Arguments (from left to right):
    			-- label_item: EV_GRID_LABEL_ITEM - `Current' to which the settings apply.
    			-- label_item_layout: EV_GRID_LABEL_ITEM_LAYOUT - Object into which desired positioning information must be set.
    			-- (from EV_GRID_LABEL_ITEM)

    	pixmap: EV_PIXMAP
    			-- Image displayed to left of text.
    			-- (from EV_GRID_LABEL_ITEM)

    	same_type (other: ANY): BOOLEAN
    			-- Is type of current object identical to type of `other'?
    			-- (from ANY)
    		require -- from ANY
    			other_not_void: other /= Void
    		ensure -- from ANY
    			definition: Result = (conforms_to (other) and other.conforms_to (Current))

    	text: STRING_32
    			-- Text displayed in `Current'.
    			-- (from EV_GRID_LABEL_ITEM)

    feature -- Status setting

    	disable_select
    			-- Deselect the object.
    			-- (from EV_DESELECTABLE)
    		require -- from EV_DESELECTABLE
    			not_destroyed: not is_destroyed
    		ensure -- from EV_DESELECTABLE
    			unselected: not is_selected

    	enable_select
    			-- Make is_selected True.
    			-- (from EV_SELECTABLE)
    		require -- from EV_SELECTABLE
    			not_destroyed: not is_destroyed
    			is_selectable: is_selectable
    		ensure -- from EV_SELECTABLE
    			is_selected: is_selected

    	ensure_visible
    			-- Ensure `Current' is visible in viewable area of parent.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    			parented: parent /= Void
    		ensure -- from EV_GRID_ITEM
    			virtual_x_position_not_changed_if_indent_greater_or_equal_to_column_width: old (horizontal_indent > column.width) implies old virtual_x_position = virtual_x_position
    			virtual_x_position_not_changed_if_item_already_visible: old (virtual_x_position >= parent.virtual_x_position) and old (virtual_x_position + width <= parent.virtual_x_position + parent.viewable_width) implies old (virtual_x_position = virtual_x_position)
    			virtual_y_position_not_changed_if_item_already_visible: old (virtual_y_position >= parent.virtual_y_position) and old (virtual_y_position + height <= parent.virtual_y_position + parent.viewable_height) implies old (virtual_y_position = virtual_y_position)
    			row_visible_when_heights_fixed_in_parent: parent.is_row_height_fixed implies row.virtual_y_position >= parent.virtual_y_position and virtual_y_position + parent.row_height <= parent.virtual_y_position + (parent.viewable_height).max (parent.row_height)
    			row_visible_when_heights_not_fixed_in_parent: not parent.is_row_height_fixed implies row.virtual_y_position >= parent.virtual_y_position and virtual_y_position + row.height <= parent.virtual_y_position + (parent.viewable_height).max (row.height)
    			virtual_x_position_visible_if_indent_less_than_column_width: horizontal_indent < column.width implies virtual_x_position >= parent.virtual_x_position and virtual_x_position + width <= parent.virtual_x_position + (parent.viewable_width).max (width)

    	set_background_color (a_color: like background_color)
    			-- Assign `a_color' to background_color.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_ITEM
    			background_color_assigned: background_color = a_color

    	set_foreground_color (a_color: like foreground_color)
    			-- Assign `a_color' to foreground_color.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_ITEM
    			foreground_color_assigned: foreground_color = a_color

    	set_tooltip (a_tooltip: STRING_GENERAL)
    			-- Assign `a_tooltip' to tooltip.
    			-- pass `Void' to remove the tooltip.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_ITEM
    			tooltip_reset: a_tooltip = Void implies tooltip = Void
    			tooltip_set: a_tooltip /= Void implies ((tooltip.same_type (a_tooltip) implies tooltip = a_tooltip) or not tooltip.same_type (a_tooltip) implies tooltip.is_equal (a_tooltip))

    	toggle
    			-- Change is_selected.
    			-- (from EV_DESELECTABLE)
    		require -- from EV_DESELECTABLE
    			not_is_destroyed: not is_destroyed
    			can_be_selected: not is_selected implies is_selectable
    		ensure -- from EV_DESELECTABLE
    			is_selected_changed: is_selected /= old is_selected

    feature -- Element change

    	set_data (some_data: like data)
    			-- Assign `some_data' to data.
    			-- (from EV_ANY)
    		require -- from EV_ANY
    			not_destroyed: not is_destroyed
    		ensure -- from EV_ANY
    			data_assigned: data = some_data

    	set_item_strings (a_string_array: INDEXABLE [STRING_GENERAL, INTEGER_32])
    			-- Set each item in `Current' to the strings referenced in `a_string_array'.
    		require
    			a_string_array_not_void: a_string_array /= Void
    		ensure
    			item_strings_set: item_strings = a_string_array

    feature -- Duplication

    	copy (other: like Current)
    			-- Update current object using fields of object attached
    			-- to `other', so as to yield equal objects.
    			-- (from EV_ANY)
    		require -- from ANY
    			other_not_void: other /= Void
    			type_identity: same_type (other)
    		ensure -- from ANY
    			is_equal: is_equal (other)

    	frozen deep_copy (other: like Current)
    			-- Effect equivalent to that of:
    			--		copy (`other' . deep_twin)
    			-- (from ANY)
    		require -- from ANY
    			other_not_void: other /= Void
    		ensure -- from ANY
    			deep_equal: deep_equal (Current, other)

    	frozen deep_twin: like Current
    			-- New object structure recursively duplicated from Current.
    			-- (from ANY)
    		ensure -- from ANY
    			deep_equal: deep_equal (Current, Result)

    	frozen standard_copy (other: like Current)
    			-- Copy every field of `other' onto corresponding field
    			-- of current object.
    			-- (from ANY)
    		require -- from ANY
    			other_not_void: other /= Void
    			type_identity: same_type (other)
    		ensure -- from ANY
    			is_standard_equal: standard_is_equal (other)

    	frozen standard_twin: like Current
    			-- New object field-by-field identical to `other'.
    			-- Always uses default copying semantics.
    			-- (from ANY)
    		ensure -- from ANY
    			standard_twin_not_void: Result /= Void
    			equal: standard_equal (Result, Current)

    	frozen twin: like Current
    			-- New object equal to `Current'
    			-- twin calls copy; to change copying/twining semantics, redefine copy.
    			-- (from ANY)
    		ensure -- from ANY
    			twin_not_void: Result /= Void
    			is_equal: Result.is_equal (Current)

    feature -- Basic operations

    	frozen default: like Current
    			-- Default value of object's type
    			-- (from ANY)

    	frozen default_pointer: POINTER
    			-- Default value of type `POINTER'
    			-- (Avoid the need to write `p'.default for
    			-- some `p' of type `POINTER'.)
    			-- (from ANY)

    	default_rescue
    			-- Process exception for routines with no Rescue clause.
    			-- (Default: do nothing.)
    			-- (from ANY)

    	frozen do_nothing
    			-- Execute a null action.
    			-- (from ANY)

    feature -- Actions

    	activate
    			-- Setup `Current' for interactive in-place editing of `Current'.
    			-- Activation is usually achieved by connecting an agent  to
    			-- {EV_GRID}.pointer_double_press_actions' that calls activate.
    			-- Will call activate_action of `Current' to setup the in-place editing.
    			-- The default behavior of the activation can be overriden in {EV_GRID}.item_activate_actions,
    			-- this is useful for repositioning the popup window used editing `Current'.
    			-- See {EV_GRID_EDITABLE_ITEM}.activate_action for an example of what happens on activation.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    			parented: is_parented

    	redraw
    			-- Force `Current' to be re-drawn when next idle.
    			-- (from EV_GRID_ITEM)
    		require -- from EV_GRID_ITEM
    			not_destroyed: not is_destroyed
    			parented: is_parented

    feature -- Command

    	destroy
    			-- Destroy underlying native toolkit object.
    			-- Render `Current' unusable.
    			-- (from EV_ANY)
    		ensure -- from EV_ANY
    			is_destroyed: is_destroyed

    feature -- Event handling

    	activate_actions: ACTION_SEQUENCE [TUPLE [EV_POPUP_WINDOW]]
    			-- Actions to be performed to override the default activate setup of `Current', see {EV_GRID_EDITABLE_ITEM}.activate_action.
    			-- Useful for repositioning `popup_window', which will then be shown automatically by the grid.
    			-- Arguments of TUPLE (with name for clarity):
    			--
    			-- popup_window: EV_POPUP_WINDOW -- The popup window used to interactively edit `activate_item', window has already been sized and positioned.
    			-- (from EV_GRID_ITEM_ACTION_SEQUENCES)
    		ensure -- from EV_GRID_ITEM_ACTION_SEQUENCES
    			result_not_void: Result /= Void

    	deactivate_actions: EV_NOTIFY_ACTION_SEQUENCE
    			-- Actions to be performed when `Current' has been deactivated.
    			-- (from EV_GRID_ITEM_ACTION_SEQUENCES)
    		ensure -- from EV_GRID_ITEM_ACTION_SEQUENCES
    			result_not_void: Result /= Void

    	deselect_actions: EV_NOTIFY_ACTION_SEQUENCE
    			-- Actions to be performed when `Current' is deselected.
    			-- (from EV_GRID_ITEM_ACTION_SEQUENCES)
    		ensure -- from EV_GRID_ITEM_ACTION_SEQUENCES
    			result_not_void: Result /= Void

    	drop_actions: EV_PND_ACTION_SEQUENCE
    			-- Actions to be performed when a pebble is dropped here.
    			-- (from EV_GRID_ITEM_ACTION_SEQUENCES)
    		ensure -- from EV_GRID_ITEM_ACTION_SEQUENCES
    			not_void: Result /= Void

    	pointer_button_press_actions: EV_POINTER_BUTTON_ACTION_SEQUENCE
    			-- Actions to be performed when screen pointer button is pressed.
    			-- (from EV_GRID_ITEM_ACTION_SEQUENCES)
    		ensure -- from EV_GRID_ITEM_ACTION_SEQUENCES
    			not_void: Result /= Void

    	pointer_button_release_actions: EV_POINTER_BUTTON_ACTION_SEQUENCE
    			-- Actions to be performed when screen pointer button is released.
    			-- (from EV_GRID_ITEM_ACTION_SEQUENCES)
    		ensure -- from EV_GRID_ITEM_ACTION_SEQUENCES
    			not_void: Result /= Void

    	pointer_double_press_actions: EV_POINTER_BUTTON_ACTION_SEQUENCE
    			-- Actions to be performed when screen pointer is double clicked.
    			-- (from EV_GRID_ITEM_ACTION_SEQUENCES)
    		ensure -- from EV_GRID_ITEM_ACTION_SEQUENCES
    			not_void: Result /= Void

    	pointer_enter_actions: EV_NOTIFY_ACTION_SEQUENCE
    			-- Actions to be performed when screen pointer enters widget.
    			-- (from EV_GRID_ITEM_ACTION_SEQUENCES)
    		ensure -- from EV_GRID_ITEM_ACTION_SEQUENCES
    			not_void: Result /= Void

    	pointer_leave_actions: EV_NOTIFY_ACTION_SEQUENCE
    			-- Actions to be performed when screen pointer leaves widget.
    			-- (from EV_GRID_ITEM_ACTION_SEQUENCES)
    		ensure -- from EV_GRID_ITEM_ACTION_SEQUENCES
    			not_void: Result /= Void

    	pointer_motion_actions: EV_POINTER_MOTION_ACTION_SEQUENCE
    			-- Actions to be performed when screen pointer moves.
    			-- (from EV_GRID_ITEM_ACTION_SEQUENCES)
    		ensure -- from EV_GRID_ITEM_ACTION_SEQUENCES
    			not_void: Result /= Void

    	select_actions: EV_NOTIFY_ACTION_SEQUENCE
    			-- Actions to be performed when `Current' is selected.
    			-- (from EV_GRID_ITEM_ACTION_SEQUENCES)
    		ensure -- from EV_GRID_ITEM_ACTION_SEQUENCES
    			result_not_void: Result /= Void

    feature -- Markers

    	fixme (comment: STRING_8)
    			-- Mark code that has to be "fixed" with `comment'.
    			-- (from REFACTORING_HELPER)
    		require -- from REFACTORING_HELPER
    			comment_not_void: comment /= Void

    	to_implement (comment: STRING_8)
    			-- Mark code that has to be "implemented" with `comment'.
    			-- (from REFACTORING_HELPER)
    		require -- from REFACTORING_HELPER
    			comment_not_void: comment /= Void

    	to_implement_assertion (comment: STRING_8): BOOLEAN
    			-- Mark assertion that has to be "implemented" with `comment'.
    			-- (from REFACTORING_HELPER)
    		require -- from REFACTORING_HELPER
    			comment_not_void: comment /= Void

    feature -- Output

    	io: STD_FILES
    			-- Handle to standard file setup
    			-- (from ANY)

    	out: STRING_8
    			-- New string containing terse printable representation
    			-- of current object
    			-- Was declared in ANY as synonym of tagged_out.
    			-- (from ANY)

    	print (some: ANY)
    			-- Write terse external representation of `some'
    			-- on standard output.
    			-- (from ANY)

    	frozen tagged_out: STRING_8
    			-- New string containing terse printable representation
    			-- of current object
    			-- Was declared in ANY as synonym of out.
    			-- (from ANY)

    feature -- Platform

    	operating_environment: OPERATING_ENVIRONMENT
    			-- Objects available from the operating system
    			-- (from ANY)

    feature -- Status Report

    	is_destroyed: BOOLEAN
    			-- Is `Current' no longer usable?
    			-- (from EV_ANY)
    		ensure -- from EV_ANY
    			bridge_ok: Result = implementation.is_destroyed

    feature -- Status Setting

    	align_text_bottom
    			-- Display text bottom aligned.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			alignment_set: is_bottom_aligned

    	align_text_center
    			-- Display text centered.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			alignment_set: is_center_aligned

    	align_text_left
    			-- Display text left aligned.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			alignment_set: is_left_aligned

    	align_text_right
    			-- Display text right aligned.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			alignment_set: is_right_aligned

    	align_text_top
    			-- Display text top aligned.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			alignment_set: is_top_aligned

    	align_text_vertically_center
    			-- Display text centered vertically.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			alignment_set: is_vertically_center_aligned

    	disable_full_select
    			-- Ensure is_full_select_enabled is `False'.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			full_select_disabled: not is_full_select_enabled

    	enable_full_select
    			-- Ensure is_full_select_enabled is `True'.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			full_select_enabled: is_full_select_enabled

    	remove_pixmap
    			-- Remove image displayed on `Current'.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			pixmap_removed: pixmap = Void

    	remove_text
    			-- Make text `is_empty'.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    		ensure -- from EV_GRID_LABEL_ITEM
    			text_empty: text.is_empty

    	set_bottom_border (a_bottom_border: INTEGER_32)
    			-- Assign `a_bottom_border' to bottom_border.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    			a_bottom_border_non_negative: a_bottom_border >= 0
    		ensure -- from EV_GRID_LABEL_ITEM
    			bottom_border_set: bottom_border = a_bottom_border

    	set_font (a_font: EV_FONT)
    			-- Assign `a_font' to font.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    			a_font_not_void: a_font /= Void
    		ensure -- from EV_GRID_LABEL_ITEM
    			font_assigned: font = a_font

    	set_layout_procedure (a_layout_procedure: PROCEDURE [ANY, TUPLE [EV_GRID_LABEL_ITEM, EV_GRID_LABEL_ITEM_LAYOUT]])
    			-- Assign `a_layout_procedure' to layout_procedure.
    			-- (from EV_GRID_LABEL_ITEM)
    		ensure -- from EV_GRID_LABEL_ITEM
    			layout_procedure_set: layout_procedure = a_layout_procedure

    	set_left_border (a_left_border: INTEGER_32)
    			-- Assign `a_left_border' to left_border.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    			a_left_border_non_negative: a_left_border >= 0
    		ensure -- from EV_GRID_LABEL_ITEM
    			left_border_set: left_border = a_left_border

    	set_pixmap (a_pixmap: EV_PIXMAP)
    			-- Display image of `a_pixmap' on `Current'.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    			pixmap_not_void: a_pixmap /= Void
    		ensure -- from EV_GRID_LABEL_ITEM
    			pixmap_set: pixmap = a_pixmap

    	set_right_border (a_right_border: INTEGER_32)
    			-- Assign `a_right_border' to right_border.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    			a_right_border_non_negative: a_right_border >= 0
    		ensure -- from EV_GRID_LABEL_ITEM
    			right_border_set: right_border = a_right_border

    	set_spacing (a_spacing: INTEGER_32)
    			-- Assign `a_spacing' to spacing.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    			a_spacing_non_negative: a_spacing >= 0
    		ensure -- from EV_GRID_LABEL_ITEM
    			spacing_set: spacing = a_spacing

    	set_text (a_text: STRING_GENERAL)
    			-- Assign `a_text' to text.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    			a_text_not_void: a_text /= Void
    			no_carriage_returns: not a_text.has_code (('%R').natural_32_code)
    		ensure -- from EV_GRID_LABEL_ITEM
    			text_set: (text.same_type (a_text) implies text = a_text) or else not text.same_type (a_text) implies text.is_equal (a_text)

    	set_top_border (a_top_border: INTEGER_32)
    			-- Assign `a_top_border' to top_border.
    			-- (from EV_GRID_LABEL_ITEM)
    		require -- from EV_GRID_LABEL_ITEM
    			not_destroyed: not is_destroyed
    			a_top_border_non_negative: a_top_border >= 0
    		ensure -- from EV_GRID_LABEL_ITEM
    			top_border_set: top_border = a_top_border

    invariant
    	combo_box_parented_during_activation: combo_box /= Void implies combo_box.parent /= Void

    		-- from EV_GRID_ITEM
    	parented_implies_height_equals_row_height_or_parent_row_height: (parent /= Void and then not parent.is_row_height_fixed implies height = row.height) or (parent /= Void and then parent.is_row_height_fixed implies height = parent.row_height)
    	parented_and_parent_has_no_tree_implies_width_equals_column_width: parent /= Void and then not parent.is_tree_enabled implies width = column.width
    	parented_and_row_is_subrow_implies_width_equals_column_width_less_indent: parent /= Void and row.parent_row /= Void implies width = (column.width - horizontal_indent).max (0)

    		-- from EV_ANY
    	is_initialized: is_initialized
    	is_coupled: implementation /= Void and then implementation.interface = Current
    	default_create_called: default_create_called

    		-- from ANY
    	reflexive_equality: standard_is_equal (Current)
    	reflexive_conformance: conforms_to (Current)

    		-- from EV_DESELECTABLE
    	not_selectable_therefore_not_selected: not is_selectable implies not is_selected

    indexing
    	copyright: "Copyright (c) 1984-2006, Eiffel Software and others"
    	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
    	source: "[
    		Eiffel Software
    		356 Storke Road, Goleta, CA 93117 USA
    		Telephone 805-685-1006, Fax 805-685-6869
    		Website http://www.eiffel.com
    		Customer support http://support.eiffel.com
    	]"

    end -- class EV_GRID_COMBO_ITEM