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note description: "Graphical picture stored as a two dimensional map of pixels.%NCan be modified and displayed." legal: "See notice at end of class." status: "See notice at end of class." keywords: "drawable, primitives, figures, buffer, bitmap, picture" date: "$Date: 2016-09-27 08:50:48 -0700 (Tue, 27 Sep 2016) $" revision: "$Revision: 99192 $" class interface EV_PIXMAP 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: default_create_called is_in_default_state: is_in_default_state make_with_size (a_width, a_height: INTEGER_32) -- Create with a_width and a_height. require a_width_positive: a_width > 0 a_height_positive: a_height > 0 ensure then width_assigned: width = a_width height_assigned: height = a_height make_with_pointer_style (a_pointer_style: EV_POINTER_STYLE) -- Create from a_pointer_style. make_with_pixel_buffer (a_pixel_buffer: EV_PIXEL_BUFFER) -- Create from a_pixel_buffer. require a_pixel_buffer_not_void: a_pixel_buffer /= Void convert make_with_pixel_buffer ({EV_POINTER_STYLE}), make_with_pixel_buffer ({EV_PIXEL_BUFFER}) feature -- Access accept_cursor: EV_POINTER_STYLE -- Result is cursor displayed when the screen pointer is over a -- target that accepts pebble during pick and drop. -- (from EV_PICK_AND_DROPABLE) require -- from EV_ABSTRACT_PICK_AND_DROPABLE True ensure -- from EV_ABSTRACT_PICK_AND_DROPABLE result_not_void: Result /= Void ensure then -- from EV_PICK_AND_DROPABLE cursor_valid: (attached implementation.accept_cursor implies Result = implementation.accept_cursor) or else Result = Default_pixmaps.Standard_cursor actual_drop_target_agent: detachable FUNCTION [INTEGER_32, INTEGER_32, detachable EV_ABSTRACT_PICK_AND_DROPABLE] -- Overrides default drop target on a certain position. -- If Void, Current will use the default drop target. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed ensure -- from EV_WIDGET bridge_ok: Result = implementation.actual_drop_target_agent background_color: EV_COLOR -- Color displayed behind foreground features. -- (from EV_COLORIZABLE) require -- from EV_COLORIZABLE not_destroyed: not is_destroyed ensure -- from EV_COLORIZABLE bridge_ok: Result.is_equal (implementation.background_color) clip_area: detachable EV_RECTANGLE -- Rectangular area to apply clipping on. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE bridge_ok: (Result = Void) = (implementation.clip_area = Void) configurable_target_menu_handler: detachable PROCEDURE [EV_MENU, ARRAYED_LIST [EV_PND_TARGET_DATA], EV_PICK_AND_DROPABLE, detachable ANY] -- Agent used for customizing the Pick and Drop Target Menu of Current. -- (from EV_PICK_AND_DROPABLE) dashed_line_style: BOOLEAN -- Are lines drawn dashed? -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE bridge_ok: Result = implementation.dashed_line_style data: detachable ANY -- Arbitrary user data may be stored here. -- (from EV_ANY) default_identifier_name: STRING_32 -- Default name if no other name is set. -- (from EV_IDENTIFIABLE) ensure -- from EV_IDENTIFIABLE result_not_void: Result /= Void result_not_empty: not Result.is_empty no_period_in_result: not Result.has ('.'.to_character_32) default_key_processing_handler: detachable PREDICATE [EV_KEY] assign set_default_key_processing_handler -- Agent used to determine whether the default key processing should occur for Current. -- If agent returns True then default key processing continues as normal, False prevents -- default key processing from occurring. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed ensure -- from EV_WIDGET bridge_ok: Result = implementation.default_key_processing_handler deny_cursor: EV_POINTER_STYLE -- Result is cursor displayed when the screen pointer is over a -- target that does not accept pebble during pick and drop. -- (from EV_PICK_AND_DROPABLE) require -- from EV_ABSTRACT_PICK_AND_DROPABLE True ensure -- from EV_ABSTRACT_PICK_AND_DROPABLE result_not_void: Result /= Void ensure then -- from EV_PICK_AND_DROPABLE cursor_valid: (attached implementation.deny_cursor implies Result = implementation.deny_cursor) or else Result = Default_pixmaps.No_cursor drawing_mode: INTEGER_32 -- Logical operation on pixels when drawing. -- Default: drawing_mode_copy. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE bridge_ok: Result = implementation.drawing_mode font: EV_FONT -- Typeface appearance for Current. -- (from EV_FONTABLE) require -- from EV_FONTABLE not_destroyed: not is_destroyed ensure -- from EV_FONTABLE not_void: Result /= Void bridge_ok: Result.is_equal (implementation.font) foreground_color: EV_COLOR -- Color of foreground features like text. -- (from EV_COLORIZABLE) require -- from EV_COLORIZABLE not_destroyed: not is_destroyed ensure -- from EV_COLORIZABLE bridge_ok: Result.is_equal (implementation.foreground_color) full_identifier_path: STRING_32 -- Full name of object by prepending path of parent -- Uses '.' as a separator. -- (from EV_IDENTIFIABLE) ensure -- from EV_IDENTIFIABLE result_not_void: Result /= Void result_correct: parent = Void implies Result.is_equal (identifier_name) result_correct: attached parent as l_parent implies Result.is_equal (l_parent.full_identifier_path + "." + identifier_name) generating_type: TYPE [detachable EV_PIXMAP] -- Type of current object -- (type of which it is a direct instance) -- (from ANY) ensure -- from ANY generating_type_not_void: Result /= Void generator: STRING_8 -- Name of current object's generating class -- (base class of the type of which it is a direct instance) -- (from ANY) ensure -- from ANY generator_not_void: Result /= Void generator_not_empty: not Result.is_empty help_context: detachable FUNCTION [EV_HELP_CONTEXT] -- Agent that evaluates to help context sent to help engine when help is requested -- (from EV_HELP_CONTEXTABLE) require -- from EV_HELP_CONTEXTABLE not_destroyed: not is_destroyed ensure -- from EV_HELP_CONTEXTABLE bridge_ok: Result = implementation.help_context frozen id_object (an_id: INTEGER_32): detachable IDENTIFIED -- Object associated with an_id (void if no such object) -- (from IDENTIFIED) ensure -- from IDENTIFIED consistent: Result = Void or else Result.object_id = an_id identifier_name: STRING_32 -- Name of object -- If no specific name is set, default_identifier_name is used. -- (from EV_IDENTIFIABLE) ensure -- from EV_IDENTIFIABLE result_not_void: Result /= Void result_not_empty: not Result.is_empty no_period_in_result: not Result.has ('.'.to_character_32) default_name_available: not has_identifier_name_set implies Result.is_equal (default_identifier_name) line_width: INTEGER_32 -- Line thickness. Default: 1. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE bridge_ok: Result = implementation.line_width frozen object_id: INTEGER_32 -- Unique for current object in any given session -- (from IDENTIFIED) ensure -- from IDENTIFIED valid_id: Result > 0 implies id_object (Result) = Current parent: detachable EV_CONTAINER -- Contains Current. -- (from EV_WIDGET) require -- from EV_IDENTIFIABLE not_destroyed: not is_destroyed ensure -- from EV_IDENTIFIABLE correct: has_parent implies Result /= Void correct: not has_parent implies Result = Void ensure then -- from EV_WIDGET bridge_ok: Result = implementation.parent pebble: detachable ANY -- Data to be transported by pick and drop mechanism. -- (from EV_PICK_AND_DROPABLE) require -- from EV_ABSTRACT_PICK_AND_DROPABLE True ensure then -- from EV_PICK_AND_DROPABLE bridge_ok: Result = implementation.pebble pebble_function: detachable FUNCTION [detachable ANY] -- Returns data to be transported by pick and drop mechanism. -- (from EV_PICK_AND_DROPABLE) require -- from EV_ABSTRACT_PICK_AND_DROPABLE True ensure then -- from EV_PICK_AND_DROPABLE bridge_ok: Result = implementation.pebble_function pebble_positioning_enabled: BOOLEAN -- If True then pick and drop start coordinates are -- pebble_x_position, pebble_y_position. -- If False then pick and drop start coordinates are -- the pointer coordinates. -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure then -- from EV_PICK_AND_DROPABLE bridge_ok: Result = implementation.pebble_positioning_enabled pebble_x_position: INTEGER_32 -- Initial x position for pick and drop relative to Current. -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure then -- from EV_PICK_AND_DROPABLE bridge_ok: Result = implementation.pebble_x_position pebble_y_position: INTEGER_32 -- Initial y position for pick and drop relative to Current. -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure then -- from EV_PICK_AND_DROPABLE bridge_ok: Result = implementation.pebble_y_position pointer_position: EV_COORDINATE -- Position of the screen pointer relative to Current. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed is_show_requested: is_show_requested pointer_style: EV_POINTER_STYLE -- Cursor displayed when pointer is over this widget. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed real_target: detachable EV_DOCKABLE_TARGET -- Result is target used during a dockable transport if -- mouse pointer is above Current. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed ensure -- from EV_WIDGET bridge_ok: Result = implementation.real_target target_data_function: detachable FUNCTION [like pebble, EV_PND_TARGET_DATA] -- Function for computing target meta data based on source pebble. -- Primarily used for Pick and Drop target menu. -- (from EV_ABSTRACT_PICK_AND_DROPABLE) note option: stable target_name: detachable READABLE_STRING_GENERAL -- Optional textual name describing Current pick and drop hole. -- (from EV_ABSTRACT_PICK_AND_DROPABLE) note option: stable tile: detachable EV_PIXMAP -- Pixmap that is used to draw filled primitives with -- instead of foreground_color. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE bridge_ok: (Result = Void) = (implementation.tile = Void) tooltip: STRING_32 -- Tooltip displayed on Current. -- If Result is empty then no tooltip displayed. -- (from EV_TOOLTIPABLE) require -- from EV_TOOLTIPABLE not_destroyed: not is_destroyed ensure -- from EV_TOOLTIPABLE bridge_ok: is_bridge_ok (Result) not_void: Result /= Void cloned: is_cloned (Result) feature -- Measurement height: INTEGER_32 -- Vertical size in pixels. -- Same as minimum_height when not displayed. -- (from EV_POSITIONED) require -- from EV_DRAWABLE not_destroyed: not is_destroyed require -- from EV_POSITIONED not_destroyed: not is_destroyed ensure -- from EV_POSITIONED bridge_ok: Result = implementation.height minimum_height: INTEGER_32 -- Lower bound on height in pixels. -- (from EV_POSITIONED) require -- from EV_POSITIONED not_destroyed: not is_destroyed ensure -- from EV_POSITIONED bridge_ok: Result = implementation.minimum_height positive_or_zero: Result >= 0 minimum_width: INTEGER_32 -- Lower bound on width in pixels. -- (from EV_POSITIONED) require -- from EV_POSITIONED not_destroyed: not is_destroyed ensure -- from EV_POSITIONED bridge_ok: Result = implementation.minimum_width positive_or_zero: Result >= 0 screen_x: INTEGER_32 -- Horizontal offset relative to screen. -- (from EV_POSITIONED) require -- from EV_POSITIONED not_destroyed: not is_destroyed ensure -- from EV_POSITIONED bridge_ok: Result = implementation.screen_x screen_y: INTEGER_32 -- Vertical offset relative to screen. -- (from EV_POSITIONED) require -- from EV_POSITIONED not_destroyed: not is_destroyed ensure -- from EV_POSITIONED bridge_ok: Result = implementation.screen_y width: INTEGER_32 -- Horizontal size in pixels. -- Same as minimum_width when not displayed. -- (from EV_POSITIONED) require -- from EV_DRAWABLE not_destroyed: not is_destroyed require -- from EV_POSITIONED not_destroyed: not is_destroyed ensure -- from EV_POSITIONED bridge_ok: Result = implementation.width x_position: INTEGER_32 -- Horizontal offset relative to parent x_position in pixels. -- (from EV_POSITIONED) require -- from EV_POSITIONED not_destroyed: not is_destroyed ensure -- from EV_POSITIONED bridge_ok: Result = implementation.x_position y_position: INTEGER_32 -- Vertical offset relative to parent y_position in pixels. -- (from EV_POSITIONED) require -- from EV_POSITIONED not_destroyed: not is_destroyed ensure -- from EV_POSITIONED bridge_ok: Result = implementation.y_position feature -- Comparison frozen deep_equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void -- or attached to isomorphic object structures? -- (from ANY) ensure -- from ANY instance_free: class shallow_implies_deep: standard_equal (a, b) implies Result both_or_none_void: (a = Void) implies (Result = (b = Void)) same_type: (Result and (a /= Void)) implies (b /= Void and then a.same_type (b)) symmetric: Result implies deep_equal (b, a) frozen equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void or attached -- to objects considered equal? -- (from ANY) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.is_equal (b)) frozen is_deep_equal (other: EV_PIXMAP): BOOLEAN -- Are Current and other attached to isomorphic object structures? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY shallow_implies_deep: standard_is_equal (other) implies Result same_type: Result implies same_type (other) symmetric: Result implies other.is_deep_equal (Current) is_equal (other: like Current): BOOLEAN -- Does other have the same appearance as Current. require -- from ANY other_not_void: other /= Void ensure -- from ANY symmetric: Result implies other ~ Current consistent: standard_is_equal (other) implies Result frozen standard_equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b 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 instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.standard_is_equal (b)) frozen standard_is_equal (other: EV_PIXMAP): 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 has_capture: BOOLEAN -- Does widget have capture? -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed ensure -- from EV_WIDGET bridge_ok: Result = implementation.has_capture has_focus: BOOLEAN -- Does widget have the keyboard focus? -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed ensure -- from EV_WIDGET bridge_ok: Result = implementation.has_focus has_identifier_name_set: BOOLEAN -- Is a specific identifier name set? -- (from EV_IDENTIFIABLE) has_parent: BOOLEAN -- Does identifiable has a parent? -- (from EV_IDENTIFIABLE) is_displayed: BOOLEAN -- Is Current visible on the screen? -- True when show requested and parent displayed. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed ensure -- from EV_WIDGET bridge_ok: Result = implementation.is_displayed is_dockable: BOOLEAN -- Is Current dockable? -- If True, then Current may be dragged -- from its current parent. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed ensure -- from EV_DOCKABLE_SOURCE bridge_ok: Result = implementation.is_dockable is_external_docking_enabled: BOOLEAN -- Is Current able to be docked into an EV_DOCKABLE_DIALOG -- When there is no valid EV_DRAGABLE_TARGET upon completion -- of transport? -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed ensure -- from EV_DOCKABLE_SOURCE bridge_ok: Result = implementation.is_external_docking_enabled is_external_docking_relative: BOOLEAN -- Will dockable dialog displayed when Current is docked externally -- be displayed relative to parent window of Current? -- Otherwise displayed as a standard window. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed ensure -- from EV_DOCKABLE_SOURCE bridge_ok: Result = implementation.is_external_docking_relative is_sensitive: BOOLEAN -- Is object sensitive to user input. -- (from EV_SENSITIVE) require -- from EV_SENSITIVE not_destroyed: not is_destroyed ensure -- from EV_SENSITIVE bridge_ok: Result = implementation.user_is_sensitive is_show_requested: BOOLEAN -- Will Current be displayed when its parent is? -- See also is_displayed. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed ensure -- from EV_WIDGET bridge_ok: Result = implementation.is_show_requested is_tabable_from: BOOLEAN -- Is Current able to be tabbed from? -- (from EV_TAB_CONTROLABLE) require -- from EV_TAB_CONTROLABLE not_destroyed: not is_destroyed is_tabable_to: BOOLEAN -- Is Current able to be tabbed to? -- (from EV_TAB_CONTROLABLE) require -- from EV_TAB_CONTROLABLE not_destroyed: not is_destroyed mode_is_configurable_target_menu: BOOLEAN -- Is the user interface mode a configurable pop-up menu of targets? -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure then -- from EV_PICK_AND_DROPABLE bridge_ok: Result = implementation.mode_is_configurable_target_menu mode_is_drag_and_drop: BOOLEAN -- Is the user interface mode drag and drop? -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure then -- from EV_PICK_AND_DROPABLE bridge_ok: Result = implementation.mode_is_drag_and_drop mode_is_pick_and_drop: BOOLEAN -- Is the user interface mode pick and drop? -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure then -- from EV_PICK_AND_DROPABLE bridge_ok: Result = implementation.mode_is_pick_and_drop mode_is_target_menu: BOOLEAN -- Is the user interface mode a pop-up menu of targets? -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure then -- from EV_PICK_AND_DROPABLE bridge_ok: Result = implementation.mode_is_target_menu real_source: detachable EV_DOCKABLE_SOURCE -- Result is source to be dragged --  when a docking drag occurs on Current. -- If Void, Current is dragged. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed ensure -- from EV_DOCKABLE_SOURCE bridge_ok: Result = implementation.real_source 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)) feature -- Status setting center_pointer -- Position screen pointer over center of Current. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed disable_capture -- Disable grab of all user input events. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed ensure -- from EV_WIDGET not_has_capture: not has_capture disable_dockable -- Ensure Current is not dockable. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed ensure -- from EV_DOCKABLE_SOURCE not_is_dockable: not is_dockable disable_external_docking -- Assign False to is_external_docking_enabled. -- Forbid Current to be docked into an EV_DOCKABLE_DIALOG -- When there is no valid EV_DRAGABLE_TARGET upon completion -- of transport. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed is_dockable: is_dockable ensure -- from EV_DOCKABLE_SOURCE not_externally_dockable: not is_external_docking_enabled disable_external_docking_relative -- Assign False to is_external_docking_relative, ensuring that -- a dockable dialog displayed when Current is docked externally -- is displayed as a standard window. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed external_docking_enabled: is_external_docking_enabled ensure -- from EV_DOCKABLE_SOURCE external_docking_not_relative: not is_external_docking_relative disable_pebble_positioning -- Assign False to pebble_positioning_enabled. -- The pick and drop will start at the pointer position. -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure -- from EV_PICK_AND_DROPABLE pebble_positioning_updated: not pebble_positioning_enabled disable_sensitive -- Make object non-sensitive to user input. -- (from EV_SENSITIVE) require -- from EV_SENSITIVE not_destroyed: not is_destroyed ensure -- from EV_SENSITIVE is_unsensitive: not is_sensitive disable_tabable_from -- Make is_tabable_from False. -- (from EV_TAB_CONTROLABLE) require -- from EV_TAB_CONTROLABLE not_destroyed: not is_destroyed ensure -- from EV_TAB_CONTROLABLE not_is_tabable_from: not is_tabable_from disable_tabable_to -- Make is_tabable_to False. -- (from EV_TAB_CONTROLABLE) require -- from EV_TAB_CONTROLABLE not_destroyed: not is_destroyed ensure -- from EV_TAB_CONTROLABLE not_is_tabable_to: not is_tabable_to enable_capture -- Grab all user input events (mouse and keyboard). -- disable_capture must be called to resume normal input handling. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed is_displayed: is_displayed ensure -- from EV_WIDGET has_capture: has_capture enable_dockable -- Ensure Current is dockable. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed ensure -- from EV_DOCKABLE_SOURCE is_dockable: is_dockable enable_external_docking -- Assign True to is_external_docking_enabled. -- Allows Current to be docked into an EV_DOCKABLE_DIALOG -- When there is no valid EV_DRAGABLE_TARGET upon completion -- of transport. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed is_dockable: is_dockable ensure -- from EV_DOCKABLE_SOURCE is_externally_dockable: is_external_docking_enabled enable_external_docking_relative -- Assign True to is_external_docking_relative, ensuring that -- a dockable dialog displayed when Current is docked externally -- is displayed relative to the top level window. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed external_docking_enabled: is_external_docking_enabled ensure -- from EV_DOCKABLE_SOURCE external_docking_not_relative: is_external_docking_relative enable_pebble_positioning -- Assign True to pebble_positioning_enabled. -- Use pebble_x_position and pebble_y_position as the initial coordinates -- for the pick and drop in pixels relative to Current. -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure -- from EV_PICK_AND_DROPABLE pebble_positioning_updated: pebble_positioning_enabled enable_sensitive -- Make object sensitive to user input. -- (from EV_SENSITIVE) require -- from EV_SENSITIVE not_destroyed: not is_destroyed ensure -- from EV_SENSITIVE is_sensitive: (parent = Void or parent_is_sensitive) implies is_sensitive enable_tabable_from -- Make is_tabable_from True. -- (from EV_TAB_CONTROLABLE) require -- from EV_TAB_CONTROLABLE not_destroyed: not is_destroyed ensure -- from EV_TAB_CONTROLABLE is_tabable_from: is_tabable_from enable_tabable_to -- Make is_tabable_to True. -- (from EV_TAB_CONTROLABLE) require -- from EV_TAB_CONTROLABLE not_destroyed: not is_destroyed ensure -- from EV_TAB_CONTROLABLE is_tabable_to: is_tabable_to hide -- Request that Current not be displayed even when its parent is. -- If successful, make is_show_requested False. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed remove_default_key_processing_handler -- Ensure default_key_processing_handler is Void. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed remove_pebble -- Make pebble Void and pebble_function `Void, -- Removing transport. -- (from EV_PICK_AND_DROPABLE) ensure -- from EV_ABSTRACT_PICK_AND_DROPABLE pebble_removed: pebble = Void and pebble_function = Void remove_real_source -- Ensure real_source is Void. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed ensure -- from EV_DOCKABLE_SOURCE real_source_void: real_source = Void remove_real_target -- Ensure real_target is Void. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed ensure -- from EV_WIDGET real_target_void: real_target = Void reset_for_buffering (a_width, a_height: INTEGER_32) -- Resets the size of the pixmap without keeping original image or clearing background. -- Useful when reusing Current as a back-buffer for blitting to other drawables. require width_valid: a_width > 0 height_valid: a_height > 0 not_destroyed: not is_destroyed set_accept_cursor (a_cursor: detachable like accept_cursor) -- Set a_cursor to be displayed when the screen pointer is over a -- target that accepts pebble during pick and drop. -- (from EV_PICK_AND_DROPABLE) ensure -- from EV_ABSTRACT_PICK_AND_DROPABLE accept_cursor_assigned: attached a_cursor as l_accept_cursor implies l_accept_cursor ~ accept_cursor set_actual_drop_target_agent (an_agent: like actual_drop_target_agent) -- Assign an_agent to actual_drop_target_agent. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed an_agent_not_void: an_agent /= Void ensure -- from EV_WIDGET assigned: actual_drop_target_agent = an_agent set_configurable_target_menu_handler (a_handler: detachable PROCEDURE [EV_MENU, ARRAYED_LIST [EV_PND_TARGET_DATA], EV_PICK_AND_DROPABLE, detachable ANY]) -- Set Configurable Target Menu Handler to a_handler. -- (from EV_PICK_AND_DROPABLE) ensure -- from EV_PICK_AND_DROPABLE configurable_target_menu_hander_assigned: configurable_target_menu_handler = a_handler set_configurable_target_menu_mode -- Set user interface mode to pop-up menu of targets. -- Target menu is configurable as the first option can be used to -- initiate a regular 'pick and drop' of the source pebble. -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure -- from EV_PICK_AND_DROPABLE target_menu_mode_set: mode_is_configurable_target_menu set_default_colors -- Set foreground and background color to their default values. -- (from EV_COLORIZABLE) require -- from EV_COLORIZABLE not_destroyed: not is_destroyed set_default_key_processing_handler (a_handler: like default_key_processing_handler) -- Assign default_key_processing_handler to a_handler. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed set_deny_cursor (a_cursor: detachable like deny_cursor) -- Set a_cursor to be displayed when the screen pointer is not -- over a valid target. -- (from EV_PICK_AND_DROPABLE) ensure -- from EV_ABSTRACT_PICK_AND_DROPABLE deny_cursor_assigned: attached a_cursor as l_deny_cursor implies l_deny_cursor ~ deny_cursor set_drag_and_drop_mode -- Set user interface mode to drag and drop. -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure -- from EV_PICK_AND_DROPABLE drag_and_drop_set: mode_is_drag_and_drop set_focus -- Grab keyboard focus if is_displayed. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed is_sensitive: is_sensitive set_mask (a_mask: EV_BITMAP) -- set transparency mask of current to a_mask. require not_destroyed: not is_destroyed mask_not_void: a_mask /= Void mask_same_dimensions: a_mask.width = width and then a_mask.height = height ensure mask_assigned: set_pebble (a_pebble: ANY) -- Assign a_pebble to pebble. -- Overrides set_pebble_function. -- (from EV_PICK_AND_DROPABLE) require -- from EV_ABSTRACT_PICK_AND_DROPABLE a_pebble_not_void: a_pebble /= Void ensure -- from EV_ABSTRACT_PICK_AND_DROPABLE pebble_assigned: pebble = a_pebble set_pebble_function (a_function: FUNCTION [detachable ANY]) -- Set a_function to compute pebble. -- It will be called once each time a pick occurs, the result -- will be assigned to pebble for the duration of transport. -- When a pick occurs, the pick position in widget coordinates, -- <<x, y>> in pixels, is passed. -- To handle this data use a_function of type -- FUNCTION [ANY, TUPLE [INTEGER, INTEGER], ANY] and return the -- pebble as a function of x and y. -- Overrides set_pebble. -- (from EV_PICK_AND_DROPABLE) require -- from EV_ABSTRACT_PICK_AND_DROPABLE a_function_not_void: a_function /= Void a_function_takes_two_integer_open_operands: a_function.valid_operands ([1, 1]) ensure -- from EV_ABSTRACT_PICK_AND_DROPABLE pebble_function_assigned: pebble_function = a_function set_pebble_position (a_x, a_y: INTEGER_32) -- Set the initial position for pick and drop -- Coordinates are in pixels and are relative to position of Current. -- Pebble_positioning_enabled must be True for the position to be used, -- use enable_pebble_positioning. -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure -- from EV_PICK_AND_DROPABLE pebble_position_assigned: pebble_x_position = a_x and pebble_y_position = a_y set_pick_and_drop_mode -- Set user interface mode to pick and drop. -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure -- from EV_PICK_AND_DROPABLE pick_and_drop_set: mode_is_pick_and_drop set_real_source (dockable_source: EV_DOCKABLE_SOURCE) -- Assign dockable_source to real_source. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed is_dockable: is_dockable dockable_source_not_void: dockable_source /= Void dockable_source_is_parent_recursive: source_has_current_recursive (dockable_source) ensure -- from EV_DOCKABLE_SOURCE real_source_assigned: real_source = dockable_source set_real_target (a_target: EV_DOCKABLE_TARGET) -- Assign a_target to real_target. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed target_not_void: a_target /= Void ensure -- from EV_WIDGET assigned: real_target = a_target set_size (a_width, a_height: INTEGER_32) -- Assign a_width and a_height to width and weight. -- Do not stretch image. -- May cause cropping. require not_destroyed: not is_destroyed a_width_positive: a_width > 0 a_height_positive: a_height > 0 ensure width_assigned: width = a_width height_assigned: height = a_height set_target_data_function (a_function: FUNCTION [like pebble, EV_PND_TARGET_DATA]) -- Set a_function to compute target meta data based on transport source. -- Overrides any target_name set with set_target_name. -- (from EV_ABSTRACT_PICK_AND_DROPABLE) require -- from EV_ABSTRACT_PICK_AND_DROPABLE a_function_not_void: a_function /= Void ensure -- from EV_ABSTRACT_PICK_AND_DROPABLE target_data_function_assigned: target_data_function /= Void and then target_data_function.is_equal (a_function) set_target_menu_mode -- Set user interface mode to pop-up menu of targets. -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed ensure -- from EV_PICK_AND_DROPABLE target_menu_mode_set: mode_is_target_menu set_target_name (a_name: READABLE_STRING_GENERAL) -- Assign a_name to target_name. -- (from EV_ABSTRACT_PICK_AND_DROPABLE) require -- from EV_ABSTRACT_PICK_AND_DROPABLE a_name_not_void: a_name /= Void ensure -- from EV_ABSTRACT_PICK_AND_DROPABLE target_name_assigned: attached target_name as l_target_name and then a_name /= l_target_name and then a_name.same_string (l_target_name) set_with_named_file (file_name: READABLE_STRING_GENERAL) -- Attempt to load pixmap data from a file specified by file_name. -- May raise Ev_unknown_image_format or Ev_corrupt_image_data -- exceptions. -- See supported_image_formats in EV_ENVIRONMENT for valid file formats. require not_destroyed: not is_destroyed file_name_not_void: file_name /= Void file_name_not_empty: not file_name.is_empty set_with_named_path (a_path: PATH) -- Attempt to load pixmap data from a file specified by file_name. -- May raise Ev_unknown_image_format or Ev_corrupt_image_data -- exceptions. -- See supported_image_formats in EV_ENVIRONMENT for valid file formats. require not_destroyed: not is_destroyed a_path_not_void: a_path /= Void a_pathnot_empty: not a_path.is_empty show -- Request that Current be displayed when its parent is. -- True by default. -- If successful, make is_show_requested True. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed show_configurable_target_menu (a_x, a_y: INTEGER_32) -- Show the configurable target menu at position a_x, a_y relative to Current. -- (from EV_PICK_AND_DROPABLE) require -- from EV_PICK_AND_DROPABLE not_destroyed: not is_destroyed mode_is_configurable_target_menu: mode_is_configurable_target_menu configurable_menu_handler_set: configurable_target_menu_handler /= Void stretch (a_width, a_height: INTEGER_32) -- Assign a_width and a_height to width and weight. -- Stretch the image to new size. require not_destroyed: not is_destroyed a_width_positive: a_width > 0 a_height_positive: a_height > 0 ensure width_assigned: width = a_width height_assigned: height = a_height feature -- Element change disable_dashed_line_style -- Draw lines solid. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE dashed_line_style_disabled: not dashed_line_style enable_dashed_line_style -- Draw lines dashed. -- See note at top. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE dashed_line_style_enabled: dashed_line_style remove_clip_area -- Do not apply any clipping. -- Was declared in EV_DRAWABLE as synonym of remove_clipping. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE clip_area_void: clip_area = Void remove_clipping -- Do not apply any clipping. -- Was declared in EV_DRAWABLE as synonym of remove_clip_area. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE clip_area_void: clip_area = Void remove_help_context -- Remove key press action associated with EV_APPLICATION.help_key. -- (from EV_HELP_CONTEXTABLE) require -- from EV_HELP_CONTEXTABLE not_destroyed: not is_destroyed help_context_not_void: help_context /= Void ensure -- from EV_HELP_CONTEXTABLE no_help_context: help_context = Void remove_tile -- Do not apply a tile when filling. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE tile_void: tile = Void remove_tooltip -- Make tooltip empty. -- (from EV_TOOLTIPABLE) require -- from EV_TOOLTIPABLE not_destroyed: not is_destroyed ensure -- from EV_TOOLTIPABLE tooltip_removed: tooltip.is_empty set_background_color (a_color: like background_color) -- Assign a_color to background_color. -- (from EV_COLORIZABLE) require -- from EV_COLORIZABLE not_destroyed: not is_destroyed a_color_not_void: a_color /= Void ensure -- from EV_COLORIZABLE background_color_assigned: background_color.is_equal (a_color) set_clip_area (an_area: EV_RECTANGLE) -- Set area which will be refreshed. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed an_area_not_void: an_area /= Void ensure -- from EV_DRAWABLE clip_area_assigned: attached clip_area as l_clip_area and then l_clip_area.is_equal (an_area) set_clip_region (a_region: EV_REGION) -- Set region which will be refreshed. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_region_not_void: a_region /= Void 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_drawing_mode (a_mode: INTEGER_32) -- Set drawing mode to a_logical_mode. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_mode_valid: valid_drawing_mode (a_mode) ensure -- from EV_DRAWABLE drawing_mode_assigned: drawing_mode = a_mode set_font (a_font: EV_FONT) -- Assign a_font to font. -- (from EV_FONTABLE) require -- from EV_FONTABLE not_destroyed: not is_destroyed a_font_not_void: a_font /= Void ensure -- from EV_FONTABLE font_assigned: font.is_equal (a_font) and font /= a_font set_foreground_color (a_color: like foreground_color) -- Assign a_color to foreground_color. -- (from EV_COLORIZABLE) require -- from EV_COLORIZABLE not_destroyed: not is_destroyed a_color_not_void: a_color /= Void ensure -- from EV_COLORIZABLE foreground_color_assigned: foreground_color.is_equal (a_color) set_help_context (an_help_context: FUNCTION [EV_HELP_CONTEXT]) -- Assign an_help_context to help_context. -- (from EV_HELP_CONTEXTABLE) require -- from EV_HELP_CONTEXTABLE not_destroyed: not is_destroyed an_help_context_not_void: an_help_context /= Void ensure -- from EV_HELP_CONTEXTABLE help_context_assigned: attached help_context as l_help_context and then l_help_context.is_equal (an_help_context) set_identifier_name (a_name: READABLE_STRING_GENERAL) -- Set identifier_name to a_name. -- (from EV_IDENTIFIABLE) require -- from EV_IDENTIFIABLE a_name_not_void: a_name /= Void a_name_not_empty: not a_name.is_empty no_period_in_name: not a_name.has ('.'.to_character_32) no_special_regexp_characters_in_name: ensure -- from EV_IDENTIFIABLE identifier_name_set: identifier_name.same_string_general (a_name) set_line_width (a_width: INTEGER_32) -- Assign a_width to line_width. -- See note at top. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_width_positive_or_zero: a_width >= 0 ensure -- from EV_DRAWABLE line_width_assigned: line_width = a_width set_minimum_height (a_minimum_height: INTEGER_32) -- Set a_minimum_height in pixels to minimum_height. -- If height is less than a_minimum_height, resize. -- From now, minimum_height is fixed and will not be changed -- dynamically by the application anymore. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed a_minimum_height_positive: a_minimum_height >= 0 ensure -- from EV_WIDGET minimum_height_assigned: (a_minimum_height > 0 implies minimum_height = a_minimum_height) or (a_minimum_height = 0 implies (minimum_height <= 1)) minimum_height_set_by_user_set: minimum_height_set_by_user set_minimum_size (a_minimum_width, a_minimum_height: INTEGER_32) -- Assign a_minimum_height to minimum_height -- and a_minimum_width to minimum_width in pixels. -- If width or height is less than minimum size, resize. -- From now, minimum size is fixed and will not be changed -- dynamically by the application anymore. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed a_minimum_width_positive: a_minimum_width >= 0 a_minimum_height_positive: a_minimum_height >= 0 ensure -- from EV_WIDGET minimum_width_assigned: (a_minimum_width > 0 implies minimum_width = a_minimum_width) or (a_minimum_width = 0 implies (minimum_width <= 1)) minimum_height_assigned: (a_minimum_height > 0 implies minimum_height = a_minimum_height) or (a_minimum_height = 0 implies (minimum_height <= 1)) minimum_height_set_by_user_set: minimum_height_set_by_user minimum_width_set_by_user_set: minimum_width_set_by_user set_minimum_width (a_minimum_width: INTEGER_32) -- Assign a_minimum_width in pixels to minimum_width. -- If width is less than a_minimum_width, resize. -- From now, minimum_width is fixed and will not be changed -- dynamically by the application anymore. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed a_minimum_width_positive: a_minimum_width >= 0 ensure -- from EV_WIDGET minimum_width_assigned: (a_minimum_width > 0 implies minimum_width = a_minimum_width) or (a_minimum_width = 0 implies (minimum_width <= 1)) minimum_width_set_by_user_set: minimum_width_set_by_user set_pointer_style (a_cursor: EV_POINTER_STYLE) -- Assign a_cursor to pointer_style. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed a_cursor_not_void: a_cursor /= Void ensure -- from EV_WIDGET pointer_style_assigned: attached pointer_style as l_pointer_style and then l_pointer_style.is_equal (a_cursor) set_tile (a_pixmap: EV_PIXMAP) -- Set tile used to fill figures. -- Set to Void to use background_color to fill. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_pixmap_not_void: a_pixmap /= Void ensure -- from EV_DRAWABLE tile_assigned: tile /= Void set_tooltip (a_tooltip: READABLE_STRING_GENERAL) -- Assign a_tooltip to tooltip. -- (from EV_TOOLTIPABLE) require -- from EV_TOOLTIPABLE not_destroyed: not is_destroyed tooltip: a_tooltip /= Void ensure -- from EV_TOOLTIPABLE tooltip_assigned: tooltip.same_string_general (a_tooltip) cloned: tooltip /= a_tooltip feature -- Duplication copy (other: like Current) -- Update Current to have same appearance as other. -- (So as to satisfy is_equal.) require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_equal: Current ~ other frozen deep_copy (other: EV_PIXMAP) -- 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: EV_PIXMAP -- New object structure recursively duplicated from Current. -- (from ANY) ensure -- from ANY deep_twin_not_void: Result /= Void deep_equal: deep_equal (Current, Result) save_to_named_file (a_format: EV_GRAPHICAL_FORMAT; a_filename: READABLE_STRING_GENERAL) -- Save Current to a_filename in format a_format. require not_destroyed: not is_destroyed a_format_not_void: a_format /= Void a_filename_not_void: a_filename /= Void save_to_named_path (a_format: EV_GRAPHICAL_FORMAT; a_filepath: PATH) -- Save Current to a_filepath in format a_format. require not_destroyed: not is_destroyed a_format_not_void: a_format /= Void a_filepath_not_void: a_filepath /= Void frozen standard_copy (other: EV_PIXMAP) -- 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: EV_PIXMAP -- 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) sub_pixmap (area: EV_RECTANGLE): EV_PIXMAP -- Return a pixmap region of Current represented by rectangle area -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed area_not_void: area /= Void ensure -- from EV_DRAWABLE result_not_void: Result /= Void frozen twin: EV_PIXMAP -- New object equal to Current -- twin calls copy; to change copying/twinning semantics, redefine copy. -- (from ANY) ensure -- from ANY twin_not_void: Result /= Void is_equal: Result ~ Current feature -- Basic operations frozen default: detachable EV_PIXMAP -- 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) ensure -- from ANY instance_free: class default_rescue -- Process exception for routines with no Rescue clause. -- (Default: do nothing.) -- (from ANY) frozen do_nothing -- Execute a null action. -- (from ANY) ensure -- from ANY instance_free: class refresh_now -- Force an immediate redraw of Current. -- (from EV_WIDGET) require -- from EV_WIDGET not_destroyed: not is_destroyed feature -- Basic Operations flush -- Ensure that the appearance of Current is updated on screen -- immediately. Any changes that have not yet been reflected will -- become visible. require not_destroyed: not is_destroyed feature -- Clearing operations clear -- Erase Current with background_color. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed clear_rectangle (x, y, a_width, a_height: INTEGER_32) -- Draw rectangle with upper-left corner on (x, y) -- with size a_width and a_height in background_color. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_width_positive_or_zero: a_width >= 0 a_height_positive_or_zero: a_height >= 0 feature -- Command destroy -- Destroy underlying native toolkit object. -- Render Current unusable. -- (from EV_ANY) ensure -- from EV_ANY is_destroyed: is_destroyed feature -- Contract support is_background_color_void: BOOLEAN -- If background_color void? -- (from EV_COLORIZABLE) is_bridge_ok (a_string: STRING_32): BOOLEAN -- If a_string equal implementation's tooltip? -- (from EV_TOOLTIPABLE) is_cloned (a_string: STRING_32): BOOLEAN -- If a_string same instance as implementation's tooltip? -- (from EV_TOOLTIPABLE) is_foreground_color_void: BOOLEAN -- If foreground_color void? -- (from EV_COLORIZABLE) parent_of_source_allows_docking: BOOLEAN -- Does parent of source to be transported -- allow current to be dragged out? (See real_source) -- Not all Vision2 containers are currently supported by this -- mechanism, only descendents of EV_DOCKABLE_TARGET -- are supported. -- (from EV_DOCKABLE_SOURCE) source_has_current_recursive (source: EV_DOCKABLE_SOURCE): BOOLEAN -- Does source recursively contain Current? -- As seen by parenting structure. -- (from EV_DOCKABLE_SOURCE) require -- from EV_DOCKABLE_SOURCE not_destroyed: not is_destroyed source_not_void: source /= Void valid_drawing_mode (a_mode: INTEGER_32): BOOLEAN -- Is a_mode a valid drawing mode? -- (from EV_DRAWABLE_CONSTANTS) feature -- Drawing mode setting set_and_mode -- Set drawing_mode to bitwise AND. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE drawing_mode_assigned: drawing_mode = Drawing_mode_and set_copy_mode -- Set drawing_mode to normal. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE drawing_mode_assigned: drawing_mode = Drawing_mode_copy set_invert_mode -- Set drawing_mode to bitwise invert. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE drawing_mode_assigned: drawing_mode = Drawing_mode_invert set_or_mode -- Set drawing_mode to bitwise OR. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE drawing_mode_assigned: drawing_mode = Drawing_mode_or set_xor_mode -- Set drawing_mode to bitwise XOR. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed ensure -- from EV_DRAWABLE drawing_mode_assigned: drawing_mode = Drawing_mode_xor feature -- Drawing operations draw_arc (x, y, a_bounding_width, a_bounding_height: INTEGER_32; a_start_angle, an_aperture: REAL_32) -- Draw part of an ellipse defined by a rectangular area with an -- upper left corner at x,y, width a_bounding_width and height -- a_bounding_height. -- Start at a_start_angle and stop at a_start_angle + an_aperture. -- Angles are measured in radians, and go -- counterclockwise from the 3 o'clock angle. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_bounding_width_positive_or_zero: a_bounding_width >= 0 a_bounding_height_positive_or_zero: a_bounding_width >= 0 draw_ellipse (x, y, a_bounding_width, a_bounding_height: INTEGER_32) -- Draw an ellipse defined by a rectangular area with an -- upper left corner at x,y, width a_bounding_width and height -- a_bounding_height. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_bounding_width_positive_or_zero: a_bounding_width >= 0 a_bounding_height_positive_or_zero: a_bounding_height >= 0 draw_ellipsed_text (x, y: INTEGER_32; a_text: READABLE_STRING_GENERAL; clipping_width: INTEGER_32) -- Draw a_text with left of baseline at (x, y) using font. -- Text is clipped to clipping_width in pixels and ellipses are displayed -- to show truncated characters if any. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_text_not_void: a_text /= Void clipping_width_positive: clipping_width >= 0 draw_ellipsed_text_top_left (x, y: INTEGER_32; a_text: READABLE_STRING_GENERAL; clipping_width: INTEGER_32) -- Draw a_text with top left corner at (x, y) using font. -- Text is clipped to clipping_width in pixels and ellipses are displayed -- to show truncated characters if any. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_text_not_void: a_text /= Void clipping_width_positive: clipping_width >= 0 draw_pie_slice (x, y, a_bounding_width, a_bounding_height: INTEGER_32; a_start_angle, an_aperture: REAL_32) -- Draw part of an ellipse defined by a rectangular area with an -- upper left corner at x,y, width a_bounding_width and height -- a_bounding_height. -- Start at a_start_angle and stop at a_start_angle + an_aperture. -- The arc is then closed by two segments through (x, 'y'). -- Angles are measured in radians, start at the -- 3 o'clock angle and grow counterclockwise. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_bounding_width_positive_or_zero: a_bounding_width >= 0 a_bounding_height_positive_or_zero: a_bounding_height >= 0 draw_pixmap (x, y: INTEGER_32; a_pixmap: EV_PIXMAP) -- Draw a_pixmap with upper-left corner on (x, y). -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_pixmap_not_void: a_pixmap /= Void draw_point (x, y: INTEGER_32) -- Draw point at (x, y). -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed draw_polyline (points: ARRAY [EV_COORDINATE]; is_closed: BOOLEAN) -- Draw line segments between subsequent points in -- points. If is_closed draw line segment between first -- and last point in points. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed points_not_void: points /= Void points_contains_first_and_last: points.count >= 2 draw_rectangle (x, y, a_width, a_height: INTEGER_32) -- Draw rectangle with upper-left corner on (x, y) -- with size a_width and a_height. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_width_positive_or_zero: a_width >= 0 a_height_positive_or_zero: a_height >= 0 draw_rotated_text (x, y: INTEGER_32; angle: REAL_32; a_text: READABLE_STRING_GENERAL) -- Draw rotated text a_text with left of baseline at (x, y) using font. -- Rotation is number of angle radians counter-clockwise from horizontal plane. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_text_not_void: a_text /= Void draw_segment (x1, y1, x2, y2: INTEGER_32) -- Draw line segment from (x1, y1) to (x2, y2). -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed draw_straight_line (x1, y1, x2, y2: INTEGER_32) -- Draw infinite straight line through (x1, y1) and -- (x2, y2). -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed points_not_equal: x1 /= x2 or y1 /= y2 draw_sub_pixel_buffer (x, y: INTEGER_32; a_pixel_buffer: EV_PIXEL_BUFFER; area: EV_RECTANGLE) -- Draw area of a_pixel_buffer with upper-left corner on (x', y). -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_pixel_buffer_not_void: a_pixel_buffer /= Void area_not_void: area /= Void draw_sub_pixmap (x, y: INTEGER_32; a_pixmap: EV_PIXMAP; area: EV_RECTANGLE) -- Draw area of a_pixmap with upper-left corner on (x, y). -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_pixmap_not_void: a_pixmap /= Void area_not_void: area /= Void draw_text (x, y: INTEGER_32; a_text: READABLE_STRING_GENERAL) -- Draw a_text with left of baseline at (x, y) using font. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_text_not_void: a_text /= Void draw_text_top_left (x, y: INTEGER_32; a_text: READABLE_STRING_GENERAL) -- Draw a_text with top left corner at (x, y) using font. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_text_not_void: a_text /= Void feature -- Drawing operations (filled) fill_ellipse (x, y, a_bounding_width, a_bounding_height: INTEGER_32) -- Fill an ellipse defined by a rectangular area with an -- upper left corner at x,y, width a_bounding_width and height -- a_bounding_height. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_bounding_width_positive_or_zero: a_bounding_width >= 0 a_bounding_height_positive_or_zero: a_bounding_height >= 0 fill_pie_slice (x, y, a_bounding_width, a_bounding_height: INTEGER_32; a_start_angle, an_aperture: REAL_32) -- Fill part of an ellipse defined by a rectangular area with an -- upper left corner at x,y, width a_bounding_width and height -- a_bounding_height. -- Start at a_start_angle and stop at a_start_angle + an_aperture. -- The arc is then closed by two segments through (x, y). -- Angles are measured in radians, start at the 3 -- o'clock angle and grow counterclockwise. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_bounding_width_positive_or_zero: a_bounding_width >= 0 a_bounding_height_positive_or_zero: a_bounding_height >= 0 fill_polygon (points: ARRAY [EV_COORDINATE]) -- Draw filled polygon between subsequent points in points. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed points_not_void: points /= Void points_contains_first_and_last: points.count >= 2 fill_rectangle (x, y, a_width, a_height: INTEGER_32) -- Draw filled rectangle with upper-left corner on (x, y) -- with size a_width and a_height. -- (from EV_DRAWABLE) require -- from EV_DRAWABLE not_destroyed: not is_destroyed a_width_positive_or_zero: a_width >= 0 a_height_positive_or_zero: a_height >= 0 feature -- Event handling conforming_pick_actions: EV_NOTIFY_ACTION_SEQUENCE -- Actions to be performed when a pebble that fits here is picked. -- (from EV_PICK_AND_DROPABLE_ACTION_SEQUENCES) require -- from EV_ABSTRACT_PICK_AND_DROPABLE True ensure -- from EV_PICK_AND_DROPABLE_ACTION_SEQUENCES not_void: Result /= Void dock_ended_actions: EV_NOTIFY_ACTION_SEQUENCE -- Actions to be performed after a dock completes from Current. -- Either to a dockable target or a dockable dialog. -- (from EV_DOCKABLE_SOURCE_ACTION_SEQUENCES) ensure -- from EV_DOCKABLE_SOURCE_ACTION_SEQUENCES not_void: Result /= Void dock_started_actions: EV_NOTIFY_ACTION_SEQUENCE -- Actions to be performed when a dockable source is dragged. -- (from EV_DOCKABLE_SOURCE_ACTION_SEQUENCES) ensure -- from EV_DOCKABLE_SOURCE_ACTION_SEQUENCES not_void: Result /= Void drop_actions: EV_PND_ACTION_SEQUENCE -- Actions to be performed when a pebble is dropped here. -- (from EV_PICK_AND_DROPABLE_ACTION_SEQUENCES) require -- from EV_ABSTRACT_PICK_AND_DROPABLE True ensure -- from EV_PICK_AND_DROPABLE_ACTION_SEQUENCES not_void: Result /= Void expose_actions: EV_GEOMETRY_ACTION_SEQUENCE -- Actions to be performed when an area needs to be redrawn. -- (from EV_DRAWABLE_ACTION_SEQUENCES) ensure -- from EV_DRAWABLE_ACTION_SEQUENCES not_void: Result /= Void file_drop_actions: EV_LITE_ACTION_SEQUENCE [LIST [STRING_32]] -- Actions to be performed when an OS file drop is performed on Current. -- (from EV_WIDGET_ACTION_SEQUENCES) focus_in_actions: EV_NOTIFY_ACTION_SEQUENCE -- Actions to be performed when keyboard focus is gained. -- (from EV_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_ACTION_SEQUENCES not_void: Result /= Void focus_out_actions: EV_NOTIFY_ACTION_SEQUENCE -- Actions to be performed when keyboard focus is lost. -- (from EV_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_ACTION_SEQUENCES not_void: Result /= Void key_press_actions: EV_KEY_ACTION_SEQUENCE -- Actions to be performed when a keyboard key is pressed. -- (from EV_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_ACTION_SEQUENCES not_void: Result /= Void key_press_string_actions: EV_KEY_STRING_ACTION_SEQUENCE -- Actions to be performed when a keyboard press generates a displayable character. -- (from EV_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_ACTION_SEQUENCES not_void: Result /= Void key_release_actions: EV_KEY_ACTION_SEQUENCE -- Actions to be performed when a keyboard key is released. -- (from EV_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_ACTION_SEQUENCES not_void: Result /= Void mouse_wheel_actions: EV_INTEGER_ACTION_SEQUENCE -- Actions to be performed when mouse wheel is rotated. -- (from EV_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_ACTION_SEQUENCES not_void: Result /= Void pick_actions: EV_PND_START_ACTION_SEQUENCE -- Actions to be performed when pebble is picked up. -- (from EV_PICK_AND_DROPABLE_ACTION_SEQUENCES) require -- from EV_ABSTRACT_PICK_AND_DROPABLE True ensure -- from EV_PICK_AND_DROPABLE_ACTION_SEQUENCES not_void: Result /= Void pick_ended_actions: EV_PND_FINISHED_ACTION_SEQUENCE -- Actions to be performed when a transport from Current ends. -- If transport completed successfully, then event data -- is target. If cancelled, then event data is Void. -- (from EV_PICK_AND_DROPABLE_ACTION_SEQUENCES) ensure -- from EV_PICK_AND_DROPABLE_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_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_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_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_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_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_ACTION_SEQUENCES not_void: Result /= Void pointer_enter_actions: EV_NOTIFY_ACTION_SEQUENCE -- Actions to be performed when screen pointer enters widget. -- (from EV_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_ACTION_SEQUENCES not_void: Result /= Void pointer_leave_actions: EV_NOTIFY_ACTION_SEQUENCE -- Actions to be performed when screen pointer leaves widget. -- (from EV_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_ACTION_SEQUENCES not_void: Result /= Void pointer_motion_actions: EV_POINTER_MOTION_ACTION_SEQUENCE -- Actions to be performed when screen pointer moves. -- (from EV_WIDGET_ACTION_SEQUENCES) require -- from EV_ABSTRACT_PICK_AND_DROPABLE True ensure -- from EV_WIDGET_ACTION_SEQUENCES not_void: Result /= Void resize_actions: EV_GEOMETRY_ACTION_SEQUENCE -- Actions to be performed when size changes. -- (from EV_WIDGET_ACTION_SEQUENCES) ensure -- from EV_WIDGET_ACTION_SEQUENCES not_void: Result /= Void feature -- Output Io: STD_FILES -- Handle to standard file setup -- (from ANY) ensure -- from ANY instance_free: class io_not_void: Result /= Void out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY out_not_void: Result /= Void print (o: detachable ANY) -- Write terse external representation of o -- on standard output. -- (from ANY) ensure -- from ANY instance_free: class frozen tagged_out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY tagged_out_not_void: Result /= Void feature -- Platform Operating_environment: OPERATING_ENVIRONMENT -- Objects available from the operating system -- (from ANY) ensure -- from ANY instance_free: class operating_environment_not_void: Result /= Void feature -- Status Report is_destroyed: BOOLEAN -- Is Current no longer usable? -- (from EV_ANY) ensure -- from EV_ANY bridge_ok: Result = implementation.is_destroyed invariant -- from EV_DRAWABLE line_width_positive_or_zero: is_usable implies line_width >= 0 drawing_mode_valid: is_usable implies valid_drawing_mode (drawing_mode) -- from EV_COLORIZABLE background_color_not_void: is_usable implies not is_background_color_void foreground_color_not_void: is_usable implies not is_foreground_color_void -- from EV_ANY is_initialized: is_initialized default_create_called: default_create_called is_coupled: default_create_called implies (implementation.interface = Current or (attached {EV_ENVIRONMENT} Current and then attached implementation.interface)) -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) -- from EV_WIDGET is_displayed_implies_show_requested: is_usable and then is_displayed implies is_show_requested parent_contains_current: is_usable and then attached parent as l_parent implies l_parent.has (Current) -- from EV_PICK_AND_DROPABLE user_interface_modes_mutually_exclusive: mode_is_pick_and_drop.to_integer + mode_is_drag_and_drop.to_integer + mode_is_target_menu.to_integer = 1 -- from EV_POSITIONED width_not_negative: is_usable implies width >= 0 height_not_negative: is_usable implies height >= 0 minimum_width_not_negative: is_usable implies minimum_width >= 0 minimum_height_not_negative: is_usable implies minimum_height >= 0 -- from EV_DOCKABLE_SOURCE parent_permits_docking: is_dockable implies parent_of_source_allows_docking note copyright: "Copyright (c) 1984-2014, Eiffel Software and others" license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)" source: "[ Eiffel Software 5949 Hollister Ave., 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_PIXMAP
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