1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/*
* $Id: PdfArray.java,v 1.37 2003/05/02 09:01:13 blowagie Exp $
* $Name: $
*
* Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
*
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text.pdf;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.ListIterator;
/**
* <CODE>PdfArray</CODE> is the PDF Array object.
* <P>
* An array is a sequence of PDF objects. An array may contain a mixture of object types.
* An array is written as a left square bracket ([), followed by a sequence of objects,
* followed by a right square bracket (]).<BR>
* This object is described in the 'Portable Document Format Reference Manual version 1.3'
* section 4.6 (page 40).
*
* @see PdfObject
*/
public class PdfArray extends PdfObject {
// membervariables
/** this is the actual array of PdfObjects */
protected ArrayList arrayList;
// constructors
/**
* Constructs an empty <CODE>PdfArray</CODE>-object.
*/
public PdfArray() {
super(ARRAY);
arrayList = new ArrayList();
}
/**
* Constructs an <CODE>PdfArray</CODE>-object, containing 1 <CODE>PdfObject</CODE>.
*
* @param object a <CODE>PdfObject</CODE> that has to be added to the array
*/
public PdfArray(PdfObject object) {
super(ARRAY);
arrayList = new ArrayList();
arrayList.add(object);
}
public PdfArray(float values[]) {
super(ARRAY);
arrayList = new ArrayList();
add(values);
}
public PdfArray(int values[]) {
super(ARRAY);
arrayList = new ArrayList();
add(values);
}
/**
* Constructs an <CODE>PdfArray</CODE>-object, containing all the <CODE>PdfObject</CODE>s in a given <CODE>PdfArray</CODE>.
*
* @param array a <CODE>PdfArray</CODE> that has to be added to the array
*/
public PdfArray(PdfArray array) {
super(ARRAY);
arrayList = new ArrayList(array.getArrayList());
}
// methods overriding some methods in PdfObject
/**
* Returns the PDF representation of this <CODE>PdfArray</CODE>.
*
* @return an array of <CODE>byte</CODE>s
*/
public void toPdf(PdfWriter writer, OutputStream os) throws IOException {
os.write('[');
Iterator i = arrayList.iterator();
PdfObject object;
// int type = 0; // ssteward
if (i.hasNext()) {
object = (PdfObject) i.next();
object.toPdf(writer, os);
}
while (i.hasNext()) {
object = (PdfObject) i.next();
// ssteward
//type = object.type();
//if (type != PdfObject.ARRAY && type != PdfObject.DICTIONARY && type != PdfObject.NAME && type != PdfObject.STRING)
os.write(' ');
object.toPdf(writer, os);
}
os.write(']');
}
// methods concerning the ArrayList-membervalue
/**
* Returns an ArrayList containing <CODE>PdfObject</CODE>s.
*
* @return an ArrayList
*/
public ArrayList getArrayList() {
return arrayList;
}
/**
* Returns the number of entries in the array.
*
* @return the size of the ArrayList
*/
public int size() {
return arrayList.size();
}
/**
* Adds a <CODE>PdfObject</CODE> to the <CODE>PdfArray</CODE>.
*
* @param object <CODE>PdfObject</CODE> to add
* @return <CODE>true</CODE>
*/
public boolean add(PdfObject object) {
return arrayList.add(object);
}
public boolean add(float values[]) {
for (int k = 0; k < values.length; ++k)
arrayList.add(new PdfNumber(values[k]));
return true;
}
public boolean add(int values[]) {
for (int k = 0; k < values.length; ++k)
arrayList.add(new PdfNumber(values[k]));
return true;
}
/**
* Adds a <CODE>PdfObject</CODE> to the <CODE>PdfArray</CODE>.
* <P>
* The newly added object will be the first element in the <CODE>ArrayList</CODE>.
*
* @param object <CODE>PdfObject</CODE> to add
*/
public void addFirst(PdfObject object) {
arrayList.add(0, object);
}
/**
* Checks if the <CODE>PdfArray</CODE> already contains a certain <CODE>PdfObject</CODE>.
*
* @param object <CODE>PdfObject</CODE> to check
* @return <CODE>true</CODE>
*/
public boolean contains(PdfObject object) {
return arrayList.contains(object);
}
public ListIterator listIterator() {
return arrayList.listIterator();
}
}
|
