blob: 9870c5e60faaa38aabdabfcca273401919b81614 (
plain)
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
|
/*
* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.layoutmgr;
import org.apache.fop.fo.FObj;
import java.util.ArrayList;
import java.util.ListIterator;
import java.util.NoSuchElementException;
public class LMiter implements ListIterator {
private ListIterator m_baseIter;
private FObj m_curFO;
protected ArrayList m_listLMs;
protected int m_curPos = 0;
public LMiter(ListIterator baseIter) {
m_baseIter = baseIter;
m_listLMs = new ArrayList(10);
}
public boolean hasNext() {
return (m_curPos < m_listLMs.size()) ? true : preLoadNext();
}
protected boolean preLoadNext() {
// skip over child FObj's that don't add lms
while (m_baseIter.hasNext()) {
FObj fobj = (FObj) m_baseIter.next();
//m_listLMs.add(fobj.getLayoutManager());
fobj.addLayoutManager(m_listLMs);
if(m_curPos < m_listLMs.size()) {
return true;
}
}
return false;
}
public boolean hasPrevious() {
return (m_curPos > 0);
}
public Object previous() throws NoSuchElementException {
if (m_curPos > 0) {
return m_listLMs.get(--m_curPos);
} else
throw new NoSuchElementException();
}
public Object next() throws NoSuchElementException {
if (m_curPos < m_listLMs.size()) {
return m_listLMs.get(m_curPos++);
} else
throw new NoSuchElementException();
}
public void remove() throws NoSuchElementException {
if (m_curPos > 0) {
m_listLMs.remove(--m_curPos);
// Note: doesn't actually remove it from the base!
} else
throw new NoSuchElementException();
}
public void add(Object o) throws UnsupportedOperationException {
throw new UnsupportedOperationException("LMiter doesn't support add");
}
public void set(Object o) throws UnsupportedOperationException {
throw new UnsupportedOperationException("LMiter doesn't support set");
}
public int nextIndex() {
return m_curPos;
}
public int previousIndex() {
return m_curPos - 1;
}
}
|
