GNU Classpath (0.20) | |
Frames | No Frames |
1: /* Segment.java -- 2: Copyright (C) 2002, 2004 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: package javax.swing.text; 39: 40: import java.text.CharacterIterator; 41: 42: public class Segment implements Cloneable, CharacterIterator 43: { 44: private boolean partialReturn; 45: private int current; 46: 47: public char[] array; 48: public int count; 49: public int offset; 50: 51: public Segment() 52: { 53: // Nothing to do here. 54: } 55: 56: public Segment(char[] array, int offset, int count) 57: { 58: this.array = array; 59: this.offset = offset; 60: this.count = count; 61: } 62: 63: public Object clone() 64: { 65: try 66: { 67: return super.clone(); 68: } 69: catch (CloneNotSupportedException e) 70: { 71: return null; 72: } 73: } 74: 75: public char current() 76: { 77: if (count == 0 78: || current >= getEndIndex()) 79: return DONE; 80: 81: return array[current]; 82: } 83: 84: public char first() 85: { 86: if (count == 0) 87: return DONE; 88: 89: current = getBeginIndex(); 90: return array[current]; 91: } 92: 93: public int getBeginIndex() 94: { 95: return offset; 96: } 97: 98: public int getEndIndex() 99: { 100: return offset + count; 101: } 102: 103: public int getIndex() 104: { 105: return current; 106: } 107: 108: public char last() 109: { 110: if (count == 0) 111: return DONE; 112: 113: current = getEndIndex() - 1; 114: return array[current]; 115: } 116: 117: public char next() 118: { 119: if (count == 0) 120: return DONE; 121: 122: if ((current + 1) >= getEndIndex()) 123: { 124: current = getEndIndex(); 125: return DONE; 126: } 127: 128: current++; 129: return array[current]; 130: } 131: 132: public char previous() 133: { 134: if (count == 0 135: || current == getBeginIndex()) 136: return DONE; 137: 138: current--; 139: return array[current]; 140: } 141: 142: public char setIndex(int position) 143: { 144: if (position < getBeginIndex() 145: || position > getEndIndex()) 146: throw new IllegalArgumentException(); 147: 148: current = position; 149: 150: if (position == getEndIndex()) 151: return DONE; 152: 153: return array[current]; 154: } 155: 156: public String toString() 157: { 158: return new String(array, offset, count); 159: } 160: 161: /** 162: * @since 1.4 163: */ 164: public void setPartialReturn(boolean p) 165: { 166: partialReturn = p; 167: } 168: 169: /** 170: * @since 1.4 171: */ 172: public boolean isPartialReturn() 173: { 174: return partialReturn; 175: } 176: }
GNU Classpath (0.20) |