1 -- Created on: 1998-10-20
3 -- Copyright (c) 1998-1999 Matra Datavision
4 -- Copyright (c) 1999-2012 OPEN CASCADE SAS
6 -- The content of this file is subject to the Open CASCADE Technology Public
7 -- License Version 6.5 (the "License"). You may not use the content of this file
8 -- except in compliance with the License. Please obtain a copy of the License
9 -- at http://www.opencascade.org and read it completely before using this file.
11 -- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
12 -- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
14 -- The Original Code and all software distributed under the License is
15 -- distributed on an "AS IS" basis, without warranty of any kind, and the
16 -- Initial Developer hereby disclaims all such warranties, including without
17 -- limitation, any warranties of merchantability, fitness for a particular
18 -- purpose or non-infringement. Please see the License for the specific terms
19 -- and conditions governing the rights and limitations under the License.
22 private class GIFAlienData from AlienImage inherits AlienImageData from AlienImage
26 AsciiString from TCollection,
27 PseudoColorImage from Image,
28 ColorImage from Image,
32 OutOfRange from Standard,
33 TypeMismatch from Standard
36 Create returns mutable GIFAlienData from AlienImage ;
38 Clear( me : in out mutable );
40 ---Purpose: Frees memory allocated by GIFAlienData
43 Read ( me : in out mutable ; afile : in out File from OSD )
44 returns Boolean from Standard;
46 ---Purpose: Read content of a GIFAlienData object from a file
47 -- Returns True if file is a GIF file .
49 Write( me : in immutable; afile : in out File from OSD )
50 returns Boolean from Standard;
52 ---Purpose: Write content of a GIFAlienData object to a file
54 ToImage( me : in immutable)
55 returns mutable Image from Image
56 raises TypeMismatch from Standard ;
58 ---Purpose : convert a GIFAlienData object to a Image object.
60 FromImage( me : in out mutable ; anImage : in Image from Image )
61 raises TypeMismatch from Standard ;
63 ---Purpose : convert a Image object to a GIFAlienData object.
65 ------------------------------------------------------
67 ------------------------------------------------------
68 FromPseudoColorImage (me : in out mutable;
69 anImage : in PseudoColorImage from Image )
72 ---Purpose : convert a Image object to a GIFAlienData object.
74 FromColorImage (me : in out mutable;
75 anImage : in ColorImage from Image)
78 ---Purpose : convert a Image object to a GIFAlienData object.
82 myRedColors : Address from Standard;
83 myGreenColors : Address from Standard;
84 myBlueColors : Address from Standard;
86 myData : Address from Standard;
87 myWidth : Integer from Standard;
88 myHeight : Integer from Standard;