    indexing
    	description: "Eiffel Vision file save dialog."
    	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 $"

    deferred class interface
    	EV_FILE_SAVE_DIALOG_I

    feature -- Access

    	blocking_window: EV_WINDOW
    			-- Window this dialog is a transient for.
    			-- (from EV_STANDARD_DIALOG_I)

    	file_name: STRING_32
    			-- Full name of currently selected file including path.
    			-- (from EV_FILE_DIALOG_I)

    	filter: STRING_32
    			-- Filter currently applied to file list.
    			-- (from EV_FILE_DIALOG_I)

    	filters: ARRAYED_LIST [TUPLE [STRING_GENERAL, STRING_GENERAL]]
    			-- All filters currently applied to file list.
    			-- First element represents the filter e.g "*.txt".
    			-- Second element represents the displayed text
    			-- e.g. "Text files (*.txt)".
    			-- (from EV_FILE_DIALOG_I)

    	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)

    	start_directory: STRING_32
    			-- Base directory where browsing will start.
    			-- (from EV_FILE_DIALOG_I)

    	title: STRING_32
    			-- Title of dialog shown in title bar.
    			-- (from EV_STANDARD_DIALOG_I)

    feature -- Measurement

    	height: INTEGER_32
    			-- Vertical size in pixels.
    			-- (from EV_POSITIONED_I)

    	minimum_height: INTEGER_32
    			-- Minimum vertical size in pixels.
    			-- (from EV_POSITIONED_I)

    	minimum_width: INTEGER_32
    			-- Minimum horizontal size in pixels.
    			-- (from EV_POSITIONED_I)

    	screen_x: INTEGER_32
    			-- Horizontal offset relative to screen.
    			-- (from EV_POSITIONED_I)

    	screen_y: INTEGER_32
    			-- Vertical offset relative to screen.
    			-- (from EV_POSITIONED_I)

    	width: INTEGER_32
    			-- Horizontal size in pixels.
    			-- (from EV_POSITIONED_I)

    	x_position: INTEGER_32
    			-- Horizontal offset relative to parent x_position in pixels.
    			-- (from EV_POSITIONED_I)

    	y_position: INTEGER_32
    			-- Vertical offset relative to parent y_position in pixels.
    			-- (from EV_POSITIONED_I)

    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

    	file_path: STRING_32
    			-- Path of file_name.
    			-- (from EV_FILE_DIALOG_I)

    	file_title: STRING_32
    			-- file_name without its path.
    			-- (from EV_FILE_DIALOG_I)

    	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))

    	selected_button: STRING_32
    			-- Label of the last clicked button.
    			-- (from EV_STANDARD_DIALOG_I)

    	selected_filter_index: INTEGER_32
    			-- One based index of selected filter within filters, or
    			-- zero if no filters set.
    			-- (from EV_FILE_DIALOG_I)
    		ensure -- from EV_FILE_DIALOG_I
    			result_zero_when_no_filters: filters.is_empty implies Result = 0
    			valid_result_when_filters_set: not filters.is_empty implies Result >= 1 and Result <= filters.count

    feature -- Status setting

    	set_height (a_height: INTEGER_32)
    			-- Set the vertical size to `a_height'.
    			-- (from EV_POSITIONABLE_I)
    		require -- from EV_POSITIONABLE_I
    			a_height_positive_or_zero: a_height >= 0
    		ensure -- from EV_POSITIONABLE_I
    			height_assigned: height = minimum_height or else height = a_height

    	set_position (a_x, a_y: INTEGER_32)
    			-- Set horizontal offset to parent to `a_x'.
    			-- Set vertical offset to parent to `a_y'.
    			-- (from EV_POSITIONABLE_I)
    		ensure -- from EV_POSITIONABLE_I
    			x_position_assigned: x_position = a_x
    			y_position_assigned: y_position = a_y

    	set_size (a_width, a_height: INTEGER_32)
    			-- Set the horizontal size to `a_width'.
    			-- Set the vertical size to `a_height'.
    			-- (from EV_POSITIONABLE_I)
    		require -- from EV_POSITIONABLE_I
    			a_width_positive_or_zero: a_width >= 0
    			a_height_positive_or_zero: a_height >= 0
    		ensure -- from EV_POSITIONABLE_I
    			width_assigned: width = minimum_width or else width = a_width
    			height_assigned: height = minimum_height or else height = a_height

    	set_title (a_title: STRING_GENERAL)
    			-- Set the title of the dialog.
    			-- (from EV_STANDARD_DIALOG_I)

    	set_width (a_width: INTEGER_32)
    			-- Set the horizontal size to `a_width'.
    			-- (from EV_POSITIONABLE_I)
    		require -- from EV_POSITIONABLE_I
    			a_width_positive_or_zero: a_width >= 0
    		ensure -- from EV_POSITIONABLE_I
    			width_assigned: width = minimum_width or else width = a_width

    	set_x_position (a_x: INTEGER_32)
    			-- Set horizontal offset to parent to `a_x'.
    			-- (from EV_POSITIONABLE_I)
    		ensure -- from EV_POSITIONABLE_I
    			x_position_assigned: x_position = a_x

    	set_y_position (a_y: INTEGER_32)
    			-- Set vertical offset to parent to `a_y'.
    			-- (from EV_POSITIONABLE_I)
    		ensure -- from EV_POSITIONABLE_I
    			y_position_assigned: y_position = a_y

    	show_modal_to_window (a_window: EV_WINDOW)
    			-- Show the dialog modal with respect to `a_window'.
    			-- (from EV_STANDARD_DIALOG_I)

    feature -- Element change

    	set_file_name (a_name: STRING_GENERAL)
    			-- Make `a_name' the selected file.
    			-- (from EV_FILE_DIALOG_I)
    		require -- from EV_FILE_DIALOG_I
    			a_name_not_void: a_name /= Void
    		ensure -- from EV_FILE_DIALOG_I
    			assigned: not file_name.is_empty implies file_name.is_equal (a_name)

    	set_filter (a_filter: STRING_GENERAL)
    			-- Set `a_filter' as new filter.
    			-- (from EV_FILE_DIALOG_I)
    		require -- from EV_FILE_DIALOG_I
    			a_filter_not_void: a_filter /= Void
    		ensure -- from EV_FILE_DIALOG_I
    			assigned: filter.is_equal (a_filter)

    	set_start_directory (a_path: STRING_GENERAL)
    			-- Make `a_path' the base directory.
    			-- (from EV_FILE_DIALOG_I)
    		require -- from EV_FILE_DIALOG_I
    			a_path_not_void: a_path /= Void
    		ensure -- from EV_FILE_DIALOG_I
    			assigned: start_directory.is_equal (a_path)

    feature -- Duplication

    	copy (other: like Current)
    			-- Update current object using fields of object attached
    			-- to `other', so as to yield equal objects.
    			-- (from 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 -- Event handling

    	cancel_actions: EV_NOTIFY_ACTION_SEQUENCE
    			-- Actions to be performed when user cancels.
    			-- (from EV_STANDARD_DIALOG_ACTION_SEQUENCES_I)
    		ensure -- from EV_STANDARD_DIALOG_ACTION_SEQUENCES_I
    			not_void: Result /= Void

    	ok_actions: EV_NOTIFY_ACTION_SEQUENCE
    			-- Actions to be performed when user clicks OK.
    			-- (from EV_STANDARD_DIALOG_ACTION_SEQUENCES_I)
    		ensure -- from EV_STANDARD_DIALOG_ACTION_SEQUENCES_I
    			not_void: Result /= 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)

    invariant
    		-- from EV_FILE_DIALOG_I
    	filters_not_void: filters /= Void

    		-- from EV_ANY_I
    	interface_coupled: is_usable implies interface /= Void and then interface.implementation = Current
    	base_make_called: base_make_called

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

    		-- from EV_POSITIONED_I
    	minimum_width_positive_or_zero: is_usable implies minimum_width >= 0
    	minimum_height_positive_or_zero: is_usable implies minimum_height >= 0

    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_FILE_SAVE_DIALOG_I