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note description: "EiffelVision font selection dialog, mswindows implementation." legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2017-03-27 09:23:22 -0800 (Mon, 27 Mar 2017) $" revision: "$Revision: 100056 $" class interface EV_FONT_DIALOG_IMP create make -- Initialize Current. ensure -- from EV_ANY_I is_initialized: get_state_flag (Is_initialized_flag) feature -- Access blocking_window: detachable EV_WINDOW -- Window this dialog is a transient for. -- (from EV_STANDARD_DIALOG_IMP) bold_fonttype: INTEGER_32 -- (from WEL_FONT_TYPE_CONSTANTS) Cf_ansionly: INTEGER_32 = 1024 -- (from WEL_CF_CONSTANTS) Cf_apply: INTEGER_32 = 512 -- (from WEL_CF_CONSTANTS) Cf_both: INTEGER_32 = 3 -- Cf_screenfonts | Cf_printerfonts. -- (from WEL_CF_CONSTANTS) Cf_effects: INTEGER_32 = 256 -- (from WEL_CF_CONSTANTS) Cf_enablehook: INTEGER_32 = 8 -- (from WEL_CF_CONSTANTS) Cf_enabletemplate: INTEGER_32 = 16 -- (from WEL_CF_CONSTANTS) Cf_enabletemplatehandle: INTEGER_32 = 32 -- (from WEL_CF_CONSTANTS) Cf_fixedpitchonly: INTEGER_32 = 16384 -- (from WEL_CF_CONSTANTS) Cf_forcefontexist: INTEGER_32 = 65536 -- (from WEL_CF_CONSTANTS) Cf_inittologfontstruct: INTEGER_32 = 64 -- (from WEL_CF_CONSTANTS) Cf_limitsize: INTEGER_32 = 8192 -- (from WEL_CF_CONSTANTS) Cf_nofacesel: INTEGER_32 = 524288 -- (from WEL_CF_CONSTANTS) Cf_nooemfonts: INTEGER_32 = 2048 -- Same as Cf_novectorfonts. -- (from WEL_CF_CONSTANTS) Cf_noscriptsel: INTEGER_32 = 8388608 -- (from WEL_CF_CONSTANTS) Cf_nosimulations: INTEGER_32 = 4096 -- (from WEL_CF_CONSTANTS) Cf_nosizesel: INTEGER_32 = 2097152 -- (from WEL_CF_CONSTANTS) Cf_nostylesel: INTEGER_32 = 1048576 -- (from WEL_CF_CONSTANTS) Cf_novectorfonts: INTEGER_32 = 2048 -- (from WEL_CF_CONSTANTS) Cf_printerfonts: INTEGER_32 = 2 -- (from WEL_CF_CONSTANTS) Cf_scalableonly: INTEGER_32 = 131072 -- (from WEL_CF_CONSTANTS) Cf_screenfonts: INTEGER_32 = 1 -- (from WEL_CF_CONSTANTS) Cf_showhelp: INTEGER_32 = 4 -- (from WEL_CF_CONSTANTS) Cf_ttonly: INTEGER_32 = 262144 -- (from WEL_CF_CONSTANTS) Cf_usestyle: INTEGER_32 = 128 -- (from WEL_CF_CONSTANTS) Cf_wysiwyg: INTEGER_32 = 32768 -- To be used with Cf_both. -- (from WEL_CF_CONSTANTS) color: WEL_COLOR_REF -- Font color -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exits: exists ensure -- from WEL_CHOOSE_FONT_DIALOG result_not_void: Result /= Void flags: INTEGER_32 -- Dialog box creation flags. -- Can be a combination of the values defined in -- class WEL_CF_CONSTANTS. -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists font: EV_FONT -- Font currently selected in Current. font_type: INTEGER_32 -- Type of the selected font. -- See class WEL_FONT_TYPE_CONSTANTS for values. -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists selected: selected ensure -- from WEL_CHOOSE_FONT_DIALOG valid_font_type: valid_font_type_constant (Result) generating_type: TYPE [detachable EV_FONT_DIALOG_IMP] -- 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 italic_fonttype: INTEGER_32 -- (from WEL_FONT_TYPE_CONSTANTS) item: POINTER -- Generic Windows handle or structure pointer. -- Can be a HWND, HICON, RECT *, WNDCLASS *, etc... -- (from WEL_ANY) log_font: WEL_LOG_FONT -- Information about the selected font -- (from WEL_CHOOSE_FONT_DIALOG) maximum_size: INTEGER_32 -- Maximum point size a user can select -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists minimum_size: INTEGER_32 -- Minimum point size a user can select -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists point_size: INTEGER_32 -- Size of the selected font (in units of 1/10 of -- a point) -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists selected: selected printer_fonttype: INTEGER_32 -- (from WEL_FONT_TYPE_CONSTANTS) regular_fonttype: INTEGER_32 -- (from WEL_FONT_TYPE_CONSTANTS) screen_fonttype: INTEGER_32 -- (from WEL_FONT_TYPE_CONSTANTS) simulated_fonttype: INTEGER_32 -- (from WEL_FONT_TYPE_CONSTANTS) title: STRING_32 -- Title of Current. feature -- Measurement dpi: NATURAL_32 -- Window dpi. -- (from EV_POSITIONED_I) Structure_size: INTEGER_32 -- Size to allocate (in bytes) -- (from WEL_CHOOSE_FONT_DIALOG) ensure -- from WEL_STRUCTURE positive_result: Result > 0 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 alias "≡≡≡" (other: EV_FONT_DIALOG_IMP): 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) 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 alias "" (other: EV_FONT_DIALOG_IMP): 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 exists: BOOLEAN -- Does the item exist? -- (from WEL_ANY) ensure -- from WEL_ANY Result = (item /= default_pointer) flag_set (flags, mask: INTEGER_32): BOOLEAN -- Is mask set in flags? -- (from WEL_BIT_OPERATIONS) has_flag (a_flags: INTEGER_32): BOOLEAN -- Is a_flags set in flags? -- See class WEL_CF_CONSTANTS for a_flags values. -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists is_destroyed: BOOLEAN -- Is Current no longer usable? -- (from EV_ANY_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: BOOLEAN -- Has the user selected something (file, color, etc.)? -- If True, the Ok button has been chosen. If False, -- the Cancel button has been chosen. -- (from WEL_STANDARD_DIALOG) selected_button: detachable IMMUTABLE_STRING_32 -- Label of last clicked button. -- (from EV_STANDARD_DIALOG_IMP) shared: BOOLEAN -- Is item shared by another object? -- If False (by default), item will -- be destroyed by destroy_item. -- If True, item will not be destroyed. -- (from WEL_ANY) valid_font_type_constant (c: INTEGER_32): BOOLEAN -- Is c a valid font type constant? -- (from WEL_FONT_TYPE_CONSTANTS) feature -- Status setting hide -- Request that Current not be displayed even when its parent is. -- If successful, make is_show_requested False. -- (from EV_STANDARD_DIALOG_IMP) require -- from EV_STANDARD_DIALOG_I not_destroyed: not is_destroyed set_blocking_window (a_window: detachable EV_WINDOW) -- Set as transient for a_window. -- (from EV_STANDARD_DIALOG_IMP) set_shared -- Set shared to True. -- (from WEL_ANY) ensure -- from WEL_ANY shared: shared set_unshared -- Set shared to False. -- (from WEL_ANY) ensure -- from WEL_ANY unshared: not shared show_modal_to_window (a_window: EV_WINDOW) -- Show the window and wait until the user closed it. -- (from EV_STANDARD_DIALOG_IMP) require -- from EV_STANDARD_DIALOG_I True feature -- Element change add_flag (a_flags: INTEGER_32) -- Add a_flags to flags. -- See class WEL_CF_CONSTANTS for a_flags values. -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists ensure -- from WEL_CHOOSE_FONT_DIALOG has_flag: has_flag (a_flags) remove_flag (a_flags: INTEGER_32) -- Remove a_flags from flags. -- See class WEL_CF_CONSTANTS for a_flags values. -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists ensure -- from WEL_CHOOSE_FONT_DIALOG has_not_flag: not has_flag (a_flags) set_color (a_color: WEL_COLOR_REF) -- Set color with a_color. -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists a_color_not_void: a_color /= Void ensure -- from WEL_CHOOSE_FONT_DIALOG color_set: color.same_color (a_color) set_dc (a_dc: WEL_DC) -- Set a device context a_dc of the printer whose -- fonts will be listed in the dialog box. -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists a_dc_not_void: a_dc /= Void a_dc_exists: a_dc.exists set_flags (a_flags: INTEGER_32) -- Set flags with a_flags. -- See class WEL_CF_CONSTANTS for a_flags values. -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists ensure -- from WEL_CHOOSE_FONT_DIALOG flags_set: flags = a_flags set_font (a_font: EV_FONT) -- Set the initial font to a_font require -- from EV_FONT_DIALOG_I a_font_not_void: a_font /= Void set_item (an_item: POINTER) -- Set item with an_item -- (from WEL_ANY) ensure -- from WEL_ANY item_set: item = an_item set_log_font (a_log_font: WEL_LOG_FONT) -- Set log_font with a_log_font. -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists a_log_font_not_void: a_log_font /= Void a_log_font_exists: a_log_font.exists ensure -- from WEL_CHOOSE_FONT_DIALOG log_font_set: log_font.item = a_log_font.item set_maximum_size (size: INTEGER_32) -- Set maximum_size with size. -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists ensure -- from WEL_CHOOSE_FONT_DIALOG maximum_size_set: maximum_size = size set_minimum_size (size: INTEGER_32) -- Set minimum_size with size. -- (from WEL_CHOOSE_FONT_DIALOG) require -- from WEL_CHOOSE_FONT_DIALOG exists: exists ensure -- from WEL_CHOOSE_FONT_DIALOG minimum_size_set: minimum_size = size set_title (new_title: READABLE_STRING_GENERAL) -- Assign new_title to title. require -- from EV_STANDARD_DIALOG_I a_title_not_void: new_title /= Void ensure then title_set: title.same_string_general (new_title) feature -- Element change height: INTEGER_32 -- Vertical size in pixels. minimum_height: INTEGER_32 -- Minimum vertical size in pixels. minimum_width: INTEGER_32 -- Minimum horizontal size in pixels. screen_x: INTEGER_32 -- Horizontal offset relative to screen. screen_y: INTEGER_32 -- Vertical offset relative to screen. set_height (a: INTEGER_32) -- Set the vertical size to a_height. require -- from EV_POSITIONABLE_I a_height_positive_or_zero: a >= 0 ensure -- from EV_POSITIONABLE_I height_assigned: height = minimum_height or else height = a set_position (a, b: INTEGER_32) -- Set horizontal offset to parent to a_x. -- Set vertical offset to parent to a_y. ensure -- from EV_POSITIONABLE_I x_position_assigned: x_position = a y_position_assigned: y_position = b set_size (a, b: INTEGER_32) -- Set the horizontal size to a_width. -- Set the vertical size to a_height. require -- from EV_POSITIONABLE_I a_width_positive_or_zero: a >= 0 a_height_positive_or_zero: b >= 0 ensure -- from EV_POSITIONABLE_I width_assigned: width = minimum_width or else width = a height_assigned: height = minimum_height or else height = b set_width (a: INTEGER_32) -- Set the horizontal size to a_width. require -- from EV_POSITIONABLE_I a_width_positive_or_zero: a >= 0 ensure -- from EV_POSITIONABLE_I width_assigned: width = minimum_width or else width = a set_x_position (a: INTEGER_32) -- Set horizontal offset to parent to a_x. ensure -- from EV_POSITIONABLE_I x_position_assigned: x_position = a set_y_position (a: INTEGER_32) -- Set vertical offset to parent to a_y. ensure -- from EV_POSITIONABLE_I y_position_assigned: y_position = a width: INTEGER_32 -- Horizontal size in pixels. x_position: INTEGER_32 -- Horizontal offset relative to parent x_position in pixels. y_position: INTEGER_32 -- Vertical offset relative to parent y_position in pixels. feature -- Removal dispose -- Destroy the inner structure of Current. -- -- This function should be called by the GC when the -- object is collected or by the user if Current is -- no more usefull. -- (from WEL_ANY) require -- from DISPOSABLE True require -- from EV_STANDARD_DIALOG_IMP True feature -- Duplication frozen deep_copy (other: EV_FONT_DIALOG_IMP) -- 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_FONT_DIALOG_IMP -- New object structure recursively duplicated from Current. -- (from ANY) ensure -- from ANY deep_twin_not_void: Result /= Void deep_equal: deep_equal (Current, Result) frozen standard_copy (other: EV_FONT_DIALOG_IMP) -- 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_FONT_DIALOG_IMP -- 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: EV_FONT_DIALOG_IMP -- 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 clear_flag (flags, mask: INTEGER_32): INTEGER_32 -- Clear the mask in flags -- (from WEL_BIT_OPERATIONS) ensure -- from WEL_BIT_OPERATIONS flag_unset: not flag_set (Result, mask) copy (other: EV_FONT_DIALOG_IMP) -- Update current object using fields of object attached -- to other, so as to yield equal objects. -- (from WEL_STRUCTURE) require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_equal: Current ~ other frozen default: detachable EV_FONT_DIALOG_IMP -- 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 structure_initialize -- Fill Current with zeros. -- (from WEL_STRUCTURE) require -- from WEL_STRUCTURE exists: exists initialize_with_character (a_character: CHARACTER_8) -- Fill current with a_character. -- (from WEL_STRUCTURE) require -- from WEL_STRUCTURE exists: exists is_equal (other: EV_FONT_DIALOG_IMP): BOOLEAN -- Is other attached to an object considered -- equal to current object? -- (from WEL_STRUCTURE) require -- from ANY other_not_void: other /= Void ensure -- from ANY symmetric: Result implies other ~ Current consistent: standard_is_equal (other) implies Result memory_copy (source_pointer: POINTER; length: INTEGER_32) -- Copy length bytes from source_pointer to item. -- (from WEL_STRUCTURE) require -- from WEL_STRUCTURE length_small_enough: length <= Structure_size length_large_enough: length > 0 exists: exists set_flag (flags, mask: INTEGER_32): INTEGER_32 -- Set the mask in flags -- (from WEL_BIT_OPERATIONS) ensure -- from WEL_BIT_OPERATIONS flag_set: flag_set (Result, mask) feature -- Implementation activate (a_parent: WEL_COMPOSITE_WINDOW) -- Activate current dialog require -- from WEL_STANDARD_DIALOG exists: exists a_parent_not_void: a_parent /= Void a_parent_exists: a_parent.exists require -- from EV_STANDARD_DIALOG_IMP a_parent_not_void: a_parent /= Void a_parent_exists: a_parent.exists feature -- Button Texts Ev_abort: IMMUTABLE_STRING_32 -- Text displayed on "abort" buttons. -- (from EV_DIALOG_NAMES) Ev_cancel: IMMUTABLE_STRING_32 -- Text displayed on "cancel" buttons. -- (from EV_DIALOG_NAMES) Ev_ignore: IMMUTABLE_STRING_32 -- Text displayed on "ignore" buttons. -- (from EV_DIALOG_NAMES) Ev_no: IMMUTABLE_STRING_32 -- Text displayed on "no" buttons. -- (from EV_DIALOG_NAMES) Ev_ok: IMMUTABLE_STRING_32 -- Text displayed on "ok" buttons. -- (from EV_DIALOG_NAMES) Ev_open: IMMUTABLE_STRING_32 -- Text displayed on "open" buttons. -- (from EV_DIALOG_NAMES) Ev_print: IMMUTABLE_STRING_32 -- Text displayed on "print" buttons. -- (from EV_DIALOG_NAMES) Ev_retry: IMMUTABLE_STRING_32 -- Text displayed on "retry" buttons. -- (from EV_DIALOG_NAMES) Ev_save: IMMUTABLE_STRING_32 -- Text displayed on "save" buttons. -- (from EV_DIALOG_NAMES) Ev_yes: IMMUTABLE_STRING_32 -- Text displayed on "yes" buttons. -- (from EV_DIALOG_NAMES) 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) 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 -- Titles Ev_confirmation_dialog_title: IMMUTABLE_STRING_32 -- Title of EV_CONFIRMATION_DIALOG. -- (from EV_DIALOG_NAMES) Ev_error_dialog_title: IMMUTABLE_STRING_32 -- Title of EV_ERROR_DIALOG. -- (from EV_DIALOG_NAMES) Ev_information_dialog_title: IMMUTABLE_STRING_32 -- Title of EV_INFORMATION_DIALOG. -- (from EV_DIALOG_NAMES) Ev_question_dialog_title: IMMUTABLE_STRING_32 -- Title of EV_QUESTION_DIALOG. -- (from EV_DIALOG_NAMES) Ev_warning_dialog_title: IMMUTABLE_STRING_32 -- Title of EV_WARNING_DIALOG. -- (from EV_DIALOG_NAMES) invariant -- from EV_ANY_I interface_coupled: is_usable implies interface /= Void and then attached_interface.implementation = Current base_make_called: is_usable implies 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 note copyright: "Copyright (c) 1984-2017, 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_FONT_DIALOG_IMP
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