001: /*
002: * $Id: InputMeta.java 2742 2007-05-08 13:04:56Z blowagie $
003: * $Name$
004: *
005: * Copyright 2001, 2002 Paulo Soares
006: *
007: * The contents of this file are subject to the Mozilla Public License Version 1.1
008: * (the "License"); you may not use this file except in compliance with the License.
009: * You may obtain a copy of the License at http://www.mozilla.org/MPL/
010: *
011: * Software distributed under the License is distributed on an "AS IS" basis,
012: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
013: * for the specific language governing rights and limitations under the License.
014: *
015: * The Original Code is 'iText, a free JAVA-PDF library'.
016: *
017: * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
018: * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
019: * All Rights Reserved.
020: * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
021: * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
022: *
023: * Contributor(s): all the names of the contributors are added in the source code
024: * where applicable.
025: *
026: * Alternatively, the contents of this file may be used under the terms of the
027: * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
028: * provisions of LGPL are applicable instead of those above. If you wish to
029: * allow use of your version of this file only under the terms of the LGPL
030: * License and not to allow others to use your version of this file under
031: * the MPL, indicate your decision by deleting the provisions above and
032: * replace them with the notice and other provisions required by the LGPL.
033: * If you do not delete the provisions above, a recipient may use your version
034: * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
035: *
036: * This library is free software; you can redistribute it and/or modify it
037: * under the terms of the MPL as stated above or under the terms of the GNU
038: * Library General Public License as published by the Free Software Foundation;
039: * either version 2 of the License, or any later version.
040: *
041: * This library is distributed in the hope that it will be useful, but WITHOUT
042: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
043: * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
044: * details.
045: *
046: * If you didn't download this code from the following link, you should check if
047: * you aren't using an obsolete version:
048: * http://www.lowagie.com/iText/
049: */
050:
051: package com.lowagie.text.pdf.codec.wmf;
052:
053: import java.awt.Color;
054: import java.io.IOException;
055: import java.io.InputStream;
056:
057: import com.lowagie.text.Utilities;
058:
059: public class InputMeta {
060:
061: InputStream in;
062: int length;
063:
064: public InputMeta(InputStream in) {
065: this .in = in;
066: }
067:
068: public int readWord() throws IOException {
069: length += 2;
070: int k1 = in.read();
071: if (k1 < 0)
072: return 0;
073: return (k1 + (in.read() << 8)) & 0xffff;
074: }
075:
076: public int readShort() throws IOException {
077: int k = readWord();
078: if (k > 0x7fff)
079: k -= 0x10000;
080: return k;
081: }
082:
083: public int readInt() throws IOException {
084: length += 4;
085: int k1 = in.read();
086: if (k1 < 0)
087: return 0;
088: int k2 = in.read() << 8;
089: int k3 = in.read() << 16;
090: return k1 + k2 + k3 + (in.read() << 24);
091: }
092:
093: public int readByte() throws IOException {
094: ++length;
095: return in.read() & 0xff;
096: }
097:
098: public void skip(int len) throws IOException {
099: length += len;
100: Utilities.skip(in, len);
101: }
102:
103: public int getLength() {
104: return length;
105: }
106:
107: public Color readColor() throws IOException {
108: int red = readByte();
109: int green = readByte();
110: int blue = readByte();
111: readByte();
112: return new Color(red, green, blue);
113: }
114: }
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