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Java > Open Source Codes > it > stefanochizzolini > clown > documents > contents > IContentStreamContext

1 /*
2   Copyright 2006 Stefano Chizzolini.
4   Contributors:
5     * Stefano Chizzolini (original code developer,
6       contributed code is Copyright 2006 by Stefano Chizzolini.
8   This file should be part of the source code distribution of "PDF Clown library"
9   (the Program): see the accompanying README files for more info.
11   This Program is free software; you can redistribute it and/or modify it under
12   the terms of the GNU General Public License as published by the Free Software
13   Foundation; either version 2 of the License, or (at your option) any later version.
15   This Program is distributed in the hope that it will be useful, but WITHOUT ANY
16   WARRANTY, either expressed or implied; without even the implied warranty of
17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the License for more details.
19   You should have received a copy of the GNU General Public License along with this
20   Program (see README files); if not, go to the GNU website (
22   Redistribution and use, with or without modification, are permitted provided that such
23   redistributions retain the above copyright notice, license and disclaimer, along with
24   this list of conditions.
25 */

27 package it.stefanochizzolini.clown.documents.contents;
29 import it.stefanochizzolini.clown.objects.PdfArray;
30 import it.stefanochizzolini.clown.objects.PdfDictionary;
32 /**
33   Content stream context.
34 */

35 public interface IContentStreamContext
36 {
37   /**
38     Gets the bounding box associated with the object, either explicitly (directly
39     associated to the object) or (if not explicitly available) implicitly (inherited
40     from a higher level object).
41     <h3>Remarks</h3>
42     <p>The box represents the physical-coordinates frame expressed in default
43     user-space units. This frame is crucial for the proper positioning of graphic
44     elements on the canvas, as the spec [PDF:1.6:4.2] *sadly* states that the
45     coordinate system is positively-oriented, although the typographic coordinates
46     would be conveniently expressed as negatively-oriented (typical content flow
47     moves from top to bottom, doesn't it? -- in the spec opinion, typical
48     user-space content flow moves from bottom to top!!! I can't doubt that PDF is
49     agnostic about the concept of "content flow", anyway this choice is quite
50     bizarre...).</p>
51   */

52   PdfArray getContextBox(
53     );
55   /**
56     Gets the resources associated with the object, either explicitly (directly
57     associated to the object) or (if not explicitly available) implicitly (inherited
58     from a higher level object).
59   */

60   PdfDictionary getContextResources(
61     );
62 }
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