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note description: "List of images. The list is cached to avoid multiplication of indexes for the same image" legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2013-11-19 16:00:03 -0900 (Tue, 19 Nov 2013) $" revision: "$Revision: 93461 $" class interface EV_IMAGE_LIST_IMP create make_with_size (a_width, a_height: INTEGER_32) -- Create image list with all images -- a_width by a_height pixels feature -- Initialization make (given_width: INTEGER_32; given_height: INTEGER_32; color_depth: INTEGER_32; masked_bitmap: BOOLEAN) -- Initialization with an empty image list. Images located -- in this imageList must have the a width equal to given_width -- and a height equal to given_height. -- -- The flag color_depth determines the color depth of the bitmaps. -- (bitmaps with a different color depth than indicated in -- image_type will automatically be converted) -- See Ilc_colorXXXX in WEL_ILC_CONSTANTS for possible values -- -- The flag masked_bitmap specify whether we are using Bitmaps with mask, or plain -- bitmaps. -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST valid_width: given_width > 0 valid_height: given_height > 0 feature -- Access count: INTEGER_32 -- Retrieves the number of images in the image list. -- (from WEL_IMAGE_LIST) generating_type: TYPE [detachable EV_IMAGE_LIST_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 Ilc_color: INTEGER_32 = 0 -- Use the default behavior if none of the other -- ILC_COLOR* flags is specified. Typically, the -- Default is Ilc_color4, but for older -- display drivers, the default is Ilc_colorddb. -- -- Declared in Windows as ILC_COLOR -- (from WEL_ILC_CONSTANTS) Ilc_color16: INTEGER_32 = 16 -- Use a 16-bit (32/64k-color) DIB section. -- -- Declared in Windows as ILC_COLOR16 -- (from WEL_ILC_CONSTANTS) Ilc_color24: INTEGER_32 = 24 -- Use a 24-bit DIB section. -- -- Declared in Windows as ILC_COLOR24 -- (from WEL_ILC_CONSTANTS) Ilc_color32: INTEGER_32 = 32 -- Use a 32-bit DIB section. -- -- Declared in Windows as ILC_COLOR32 -- (from WEL_ILC_CONSTANTS) Ilc_color4: INTEGER_32 = 4 -- Use a 4-bit (16-color) device-independent bitmap (DIB) -- section as the bitmap for the image list. -- -- Declared in Windows as ILC_COLOR4 -- (from WEL_ILC_CONSTANTS) Ilc_color8: INTEGER_32 = 8 -- Use an 8-bit DIB section. The colors used for the color -- table are the same colors as the halftone palette. -- -- Declared in Windows as ILC_COLOR8 -- (from WEL_ILC_CONSTANTS) Ilc_colorddb: INTEGER_32 = 254 -- Use a device-dependent bitmap. -- -- Declared in Windows as ILC_COLORDDB -- (from WEL_ILC_CONSTANTS) Ilc_mask: INTEGER_32 = 1 -- Use a mask. The image list contains two -- bitmaps, one of which is a monochrome bitmap -- used as a mask. If this value is not included, -- the image list contains only one bitmap. -- -- Declared in Windows as ILC_MASK -- (from WEL_ILC_CONSTANTS) item: POINTER -- Generic Windows handle or structure pointer. -- Can be a HWND, HICON, RECT *, WNDCLASS *, etc... -- (from WEL_ANY) last_position: INTEGER_32 -- Position of last image inserted/deleted. -- updated by add_image. -- (from WEL_IMAGE_LIST) use_masked_bitmap: BOOLEAN -- Does the ImageList contains 'Bitmap+Mask' or -- only 'Bitmap' -- -- Note: to use masked bitmap, create the ImageList --       using Ilc_mask + Ilc_colorXXXX as image_type -- (from WEL_IMAGE_LIST) 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_IMAGE_LIST_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) is_equal (other: EV_IMAGE_LIST_IMP): BOOLEAN -- Is other attached to an object considered -- equal to current object? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY symmetric: Result implies other ~ 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_IMAGE_LIST_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 bitmaps_height: INTEGER_32 -- height of all bitmaps located in this imageList -- (from WEL_IMAGE_LIST) bitmaps_width: INTEGER_32 -- width of all bitmaps located in this imageList -- (from WEL_IMAGE_LIST) 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) require -- from WEL_REFERENCE_TRACKABLE True ensure -- from WEL_ANY Result = (item /= default_pointer) get_background_color: WEL_COLOR_REF -- Retrieves the current background color for this image list. -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST exists: exists ensure -- from WEL_IMAGE_LIST result_not_void: Result /= Void pixmap_position (a_pixmap: EV_PIXMAP) -- Update last_position with the position of a_pixmap -- in the image list. Set last_position to -1 if a_pixmap -- is not present in the image list. require a_pixmap_not_void: a_pixmap /= Void 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 add_pixmap (a_pixmap: EV_PIXMAP) -- Add the pixmap a_pixmap into the image list. -- -- last_position is updated. extend_pixmap (a_pixmap: EV_PIXMAP) -- Add the pixmap a_pixmap at the end of the image list. -- Do not test for possible cached version. -- -- last_position is updated. set_item (an_item: POINTER) -- Set item with an_item -- (from WEL_ANY) ensure -- from WEL_ANY item_set: item = an_item feature -- Removal delete -- Destroy inner structure of Current. -- To be called when Current is no more needed -- (from WEL_REFERENCE_TRACKABLE) require -- from WEL_REFERENCE_TRACKABLE reference_not_tracked: not reference_tracked ensure -- from WEL_REFERENCE_TRACKABLE destroyed: not shared implies not exists destroy -- destroy item by calling the -- corresponding Windows function and -- set item to default_pointer. -- (from WEL_IMAGE_LIST) dispose -- Destroy inner structure of Current. -- (from WEL_REFERENCE_TRACKABLE) require -- from DISPOSABLE True ensure then -- from WEL_REFERENCE_TRACKABLE internal_object_id_freed: internal_object_id = 0 feature -- Duplication copy (other: EV_IMAGE_LIST_IMP) -- Update current object using fields of object attached -- to other, so as to yield equal objects. -- (from ANY) require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_equal: Current ~ other frozen deep_copy (other: EV_IMAGE_LIST_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_IMAGE_LIST_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_IMAGE_LIST_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_IMAGE_LIST_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_IMAGE_LIST_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 add_bitmap (bitmap_to_add: WEL_BITMAP) -- Add the bitmap bitmap_to_add into the image list. -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST bitmap_not_void: bitmap_to_add /= Void bitmap_exists: bitmap_to_add.exists compatible_width_for_bitmap: bitmap_to_add.width = bitmaps_width compatible_height_for_bitmap: bitmap_to_add.height = bitmaps_height exists: exists add_color_masked_bitmap (bitmap_to_add: WEL_BITMAP; mask_color: WEL_COLOR_REF) -- Add the bitmap bitmap_to_add into the image list. -- mask_color represents the color used to generate the mask. -- Each pixel of this color in the specified bitmap is changed to black -- and the corresponding bit in the mask is set to 1. -- -- Note: Bitmaps with color depth greater than 8bpp are not supported -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST bitmap_not_void: bitmap_to_add /= Void bitmap_to_add_exists: bitmap_to_add.exists mask_color_not_void: mask_color /= Void compatible_width_for_bitmap: bitmap_to_add.width = bitmaps_width compatible_height_for_bitmap: bitmap_to_add.height = bitmaps_height exists: exists add_icon (icon_to_add: WEL_GRAPHICAL_RESOURCE) -- Adds the icon or cursor icon_to_add to this image list -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST exists: exists icon_not_void: icon_to_add /= Void icon_exists: icon_to_add.exists add_masked_bitmap (bitmap_to_add: WEL_BITMAP; bitmap_mask: WEL_BITMAP) -- Add the bitmap bitmap_to_add into the image list. -- bitmap_mask represents the mask for the bitmap. -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST bitmap_not_void: bitmap_to_add /= Void bitmap_to_add_exists: bitmap_to_add.exists mask_not_void: bitmap_mask /= Void mask_exists: bitmap_mask.exists compatible_width_for_bitmap: bitmap_to_add.width = bitmaps_width compatible_height_for_bitmap: bitmap_to_add.height = bitmaps_height compatible_width_for_mask: bitmap_mask.width = bitmaps_width compatible_height_for_mask: bitmap_mask.height = bitmaps_height masked_bitmap_in_use: use_masked_bitmap exists: exists frozen default: detachable EV_IMAGE_LIST_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 draw_to_dc (index: INTEGER_32; a_dc: WEL_DC; a_x, a_y: INTEGER_32; a_style: NATURAL_32) -- Draw image at index index to a_dc at (a_x, a_y) using a_style. -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST a_dc_not_void: a_dc /= Void a_dc_exists: a_dc.exists 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_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 get_icon (index, flags: INTEGER_32): WEL_ICON -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST index_not_too_small: index >= 0 index_not_too_big: index < count exists: exists remove_all_images (index: INTEGER_32) -- Remove all images from the image list. -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST exists: exists remove_image (index: INTEGER_32) -- Remove the image at index index from the image list. -- -- When an image is removed, the indexes of the remaining images are -- adjusted so that the image indexes always range from zero to one -- less than the number of images in the image list. -- For example, if you remove the image at index 0, then image 1 becomes -- image 0, image 2 becomes image 1, and so on. -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST index_not_too_small: index >= 0 index_not_too_big: index < count exists: exists replace_bitmap (bitmap_to_add: WEL_BITMAP; index: INTEGER_32) -- Replace the bitmap at position index in the imageList by -- bitmap_to_add. -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST bitmap_not_void: bitmap_to_add /= Void bitmap_to_add_exists: bitmap_to_add.exists not_use_masked_bitmap: not use_masked_bitmap index_not_too_small: index >= 0 index_not_too_big: index < count exists: exists replace_icon (icon_to_add: WEL_GRAPHICAL_RESOURCE; index: INTEGER_32) -- Replace the bitmap at position index in the imageList by -- the cursor or icon icon_to_add. -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST icon_not_void: icon_to_add /= Void icon_exists: icon_to_add.exists index_not_too_small: index >= 0 index_not_too_big: index < count exists: exists replace_masked_bitmap (bitmap_to_add: WEL_BITMAP; bitmap_mask: WEL_BITMAP; index: INTEGER_32) -- Replace the bitmap at position index in the imageList by -- bitmap_to_add. -- bitmap_mask represents the mask for the bitmap. -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST bitmap_not_void: bitmap_to_add /= Void bitmap_to_add_exists: bitmap_to_add.exists mask_not_void: bitmap_mask /= Void mask_exists: bitmap_mask.exists compatible_width_for_bitmap: bitmap_to_add.width = bitmaps_width compatible_height_for_bitmap: bitmap_to_add.height = bitmaps_height compatible_width_for_mask: bitmap_mask.width = bitmaps_width compatible_height_for_mask: bitmap_mask.height = bitmaps_height masked_bitmap_in_use: use_masked_bitmap index_not_too_small: index >= 0 index_not_too_big: index < count exists: exists set_background_color (new_color: WEL_COLOR_REF) -- Sets the background color for this image list. -- (from WEL_IMAGE_LIST) require -- from WEL_IMAGE_LIST new_color_not_void: new_color /= Void exists: exists feature -- Access (ILD constants) Ild_normal: INTEGER_32 = 0 -- Draws the image using the background color for the image -- list. If the background color is the CLR_NONE value, the -- image is drawn transparently using the mask. -- -- Declared in Windows as ILD_NORMAL -- (from WEL_ILC_CONSTANTS) 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 reference_tracked: BOOLEAN -- Are number references of Current tracked? -- (from WEL_REFERENCE_TRACKABLE) references_count: INTEGER_32 -- Number of object referring to current object. -- (from WEL_REFERENCE_TRACKABLE) feature -- Status Setting decrement_reference -- Decrement number of references to current object. -- When number of references reaches zero, -- delete is called if object is not protected. -- (from WEL_REFERENCE_TRACKABLE) require -- from WEL_REFERENCE_TRACKABLE exists: exists tracking_references_started: reference_tracked enable_reference_tracking -- Set references_tracked to True. -- (from WEL_REFERENCE_TRACKABLE) require -- from WEL_REFERENCE_TRACKABLE exists: exists tracking_reference_not_started: not reference_tracked increment_reference -- Increment number of references to current object. -- (from WEL_REFERENCE_TRACKABLE) require -- from WEL_REFERENCE_TRACKABLE exists: exists tracking_references_started: reference_tracked object_id: INTEGER_32 -- Runtime Id of Current. -- (from WEL_REFERENCE_TRACKABLE) invariant -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) note copyright: "Copyright (c) 1984-2013, 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_IMAGE_LIST_IMP
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