Automatic generation produced by ISE Eiffel

Classes Clusters Cluster hierarchy Chart Relations Flat contracts Go to:
note description: "[ Device independent bitmap which can be created from a file. Note: Not all variants of the bmp format can be read. If you have problems with a certain image please use i.e. MS Paint to convert the image to the standard bmp format and then try again. ]" legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2021-04-07 08:24:22 -0800 (Wed, 07 Apr 2021) $" revision: "$Revision: 105292 $" class interface WEL_DIB create make_by_file (file: RAW_FILE) -- Create the dib by reading file. require file_not_void: file /= Void file_exists: file.exists file_opened: file.is_open_read ensure file_closed: file.is_closed make_by_stream (a_stream: IO_MEDIUM) require a_stream_not_void: a_stream /= Void a_stream_exists: a_stream.exists a_stream_opened: a_stream.is_open_read make_by_content_pointer (bits_ptr: POINTER; size: INTEGER_32) make_with_info_and_data (an_info: WEL_BITMAP_INFO; a_ptr: POINTER; a_size: INTEGER_32) -- Create a WEL_DIB section using data of a_ptr corresponding to an_info. require an_info_not_void: an_info /= Void an_info_exists: an_info.exists a_ptr_not_null: a_ptr /= default_pointer a_size_positive: a_size > 0 rgb_data: an_info.header.compression = {WEL_BI_COMPRESSION_CONSTANTS}.bi_rgb valid_size: (4 * ((an_info.header.width * an_info.header.bit_count + 31) // 32)) * an_info.header.height = a_size feature -- Access color_count: INTEGER_32 -- How many colors in the dib? require exists: exists ensure positive_result: Result >= 0 generating_type: TYPE [detachable WEL_DIB] -- 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 height: INTEGER_32 -- Dib height. require exists: exists ensure positive_result: Result >= 0 item: POINTER -- Generic Windows handle or structure pointer. -- Can be a HWND, HICON, RECT *, WNDCLASS *, etc... -- (from WEL_ANY) item_bits: POINTER require exists: exists palette: WEL_PALETTE -- Dib palette. -- -- You can track the references of `palette` if you want to -- free the GDI object contained in `palette` more quickly. width: INTEGER_32 -- Dib width. require exists: exists ensure positive_result: Result >= 0 feature -- Measurement structure_size: INTEGER_32 -- Size of the C structure representing Current. 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: WEL_DIB): 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: WEL_DIB): 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) 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)) 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) feature -- Status setting 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 feature -- Element change set_item (an_item: POINTER) -- Set `item` with an_item -- (from WEL_ANY) ensure -- from WEL_ANY item_set: item = an_item 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) feature -- Duplication frozen deep_copy (other: WEL_DIB) -- 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: WEL_DIB -- 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: WEL_DIB) -- 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: WEL_DIB -- 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: WEL_DIB -- 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 copy (other: WEL_DIB) -- 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 WEL_DIB -- 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 eif_current_object_id: INTEGER_32 -- New identifier for Current -- (from IDENTIFIED_ROUTINES) ensure -- from IDENTIFIED_ROUTINES eif_current_object_id: Result > 0 inserted: eif_is_object_id_of_current (Result) eif_id_object (an_id: INTEGER_32): detachable ANY -- Object associated with an_id -- (from IDENTIFIED_ROUTINES) require -- from IDENTIFIED_ROUTINES an_id_non_negative: an_id >= 0 ensure -- from IDENTIFIED_ROUTINES instance_free: class eif_is_object_id_of_current (an_id: INTEGER_32): BOOLEAN -- Is an_id the associated object ID of Current. -- (from IDENTIFIED_ROUTINES) require -- from IDENTIFIED_ROUTINES an_id_non_negative: an_id >= 0 eif_object_id (an_object: ANY): INTEGER_32 -- New identifier for an_object -- (from IDENTIFIED_ROUTINES) ensure -- from IDENTIFIED_ROUTINES instance_free: class eif_object_id_positive: Result > 0 inserted: eif_id_object (Result) = an_object eif_object_id_free (an_id: INTEGER_32) -- Free the entry an_id -- (from IDENTIFIED_ROUTINES) require -- from IDENTIFIED_ROUTINES an_id_non_negative: an_id >= 0 ensure -- from IDENTIFIED_ROUTINES instance_free: class removed: eif_id_object (an_id) = Void 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: WEL_DIB): 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_pal_color -- Transform the dib to be compatible with -- Dib_pal_colors mode. require exists: exists 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 invariant -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) note copyright: "Copyright (c) 1984-2021, 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 WEL_DIB
Classes Clusters Cluster hierarchy Chart Relations Flat contracts Go to:

-- Generated by Eiffel Studio --
For more details: eiffel.org