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Java > Open Source Codes > com > lowagie > text > pdf > codec > wmf > InputMeta


1 /*
2  * $Id: InputMeta.java 2742 2007-05-08 13:04:56Z blowagie $
3  * $Name$
4  *
5  * Copyright 2001, 2002 Paulo Soares
6  *
7  * The contents of this file are subject to the Mozilla Public License Version 1.1
8  * (the "License"); you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at http://www.mozilla.org/MPL/
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the License.
14  *
15  * The Original Code is 'iText, a free JAVA-PDF library'.
16  *
17  * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
18  * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
19  * All Rights Reserved.
20  * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
21  * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
22  *
23  * Contributor(s): all the names of the contributors are added in the source code
24  * where applicable.
25  *
26  * Alternatively, the contents of this file may be used under the terms of the
27  * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
28  * provisions of LGPL are applicable instead of those above. If you wish to
29  * allow use of your version of this file only under the terms of the LGPL
30  * License and not to allow others to use your version of this file under
31  * the MPL, indicate your decision by deleting the provisions above and
32  * replace them with the notice and other provisions required by the LGPL.
33  * If you do not delete the provisions above, a recipient may use your version
34  * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
35  *
36  * This library is free software; you can redistribute it and/or modify it
37  * under the terms of the MPL as stated above or under the terms of the GNU
38  * Library General Public License as published by the Free Software Foundation;
39  * either version 2 of the License, or any later version.
40  *
41  * This library is distributed in the hope that it will be useful, but WITHOUT
42  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
43  * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
44  * details.
45  *
46  * If you didn't download this code from the following link, you should check if
47  * you aren't using an obsolete version:
48  * http://www.lowagie.com/iText/
49  */

50
51 package com.lowagie.text.pdf.codec.wmf;
52
53 import java.awt.Color JavaDoc;
54 import java.io.IOException JavaDoc;
55 import java.io.InputStream JavaDoc;
56
57 import com.lowagie.text.Utilities;
58
59 public class InputMeta {
60     
61     InputStream JavaDoc in;
62     int length;
63     
64     public InputMeta(InputStream JavaDoc in) {
65         this.in = in;
66     }
67
68     public int readWord() throws IOException JavaDoc{
69         length += 2;
70         int k1 = in.read();
71         if (k1 < 0)
72             return 0;
73         return (k1 + (in.read() << 8)) & 0xffff;
74     }
75
76     public int readShort() throws IOException JavaDoc{
77         int k = readWord();
78         if (k > 0x7fff)
79             k -= 0x10000;
80         return k;
81     }
82
83     public int readInt() throws IOException JavaDoc{
84         length += 4;
85         int k1 = in.read();
86         if (k1 < 0)
87             return 0;
88         int k2 = in.read() << 8;
89         int k3 = in.read() << 16;
90         return k1 + k2 + k3 + (in.read() << 24);
91     }
92     
93     public int readByte() throws IOException JavaDoc{
94         ++length;
95         return in.read() & 0xff;
96     }
97     
98     public void skip(int len) throws IOException JavaDoc{
99         length += len;
100         Utilities.skip(in, len);
101     }
102     
103     public int getLength() {
104         return length;
105     }
106     
107     public Color JavaDoc readColor() throws IOException JavaDoc{
108         int red = readByte();
109         int green = readByte();
110         int blue = readByte();
111         readByte();
112         return new Color JavaDoc(red, green, blue);
113     }
114 }
115
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