blob: 02ef5f341c07ded722eda508d387d188c1d069de (
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
|
/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.fo;
import org.apache.fop.fo.properties.CommonBorderPaddingBackground;
import org.apache.fop.util.CharUtilities;
import java.util.NoSuchElementException;
public class InlineCharIterator extends RecursiveCharIterator {
private boolean bStartBoundary = false;
private boolean bEndBoundary = false;
/**
* @param fobj the object for whose character contents and for whose
* descendant's character contents should be iterated
* @param bpb the CommonBorderPaddingBackground properties to be applied
*/
public InlineCharIterator(FObj fobj, CommonBorderPaddingBackground bpb) {
super(fobj);
checkBoundaries(bpb);
}
private void checkBoundaries(CommonBorderPaddingBackground bpb) {
bStartBoundary = (bpb.getBorderStartWidth(false) > 0
|| bpb.getPaddingStart(false) > 0);
bEndBoundary = (bpb.getBorderEndWidth(false) > 0
|| bpb.getPaddingEnd(false) > 0);
}
/**
* @return true if there are more characters
*/
public boolean hasNext() {
if (bStartBoundary) {
return true;
}
return (super.hasNext() || bEndBoundary);
/* If super.hasNext() returns false,
* we return true if we are going to return a "boundary" signal
* else false.
*/
}
/**
* @return the next character
* @throws NoSuchElementException if there are no more characters
*/
public char nextChar() throws NoSuchElementException {
if (bStartBoundary) {
bStartBoundary = false;
return CharUtilities.CODE_EOT;
}
try {
return super.nextChar();
} catch (NoSuchElementException e) {
// Underlying has nothing more to return
// Check end boundary char
if (bEndBoundary) {
bEndBoundary = false;
return CharUtilities.CODE_EOT;
} else {
throw e;
}
}
}
}
|
