|
1
51 package org.apache.fop.fo.expr;
52
53 import org.apache.fop.datatypes.*;
54 import org.apache.fop.fo.Property;
55 import org.apache.fop.fo.LengthProperty;
56 import org.apache.fop.fo.FObj;
57 import org.apache.fop.fo.flow.ListItem;
58
59 public class LabelEndFunction extends FunctionBase {
60
61 public int nbArgs() {
62 return 0;
63 }
64
65 public Property eval(Property[] args,
66 PropertyInfo pInfo) throws PropertyException {
67
68 Length distance =
69 pInfo.getPropertyList().get("provisional-distance-between-starts").getLength();
70 Length separation =
71 pInfo.getPropertyList().getNearestSpecified("provisional-label-separation").getLength();
72
73 FObj item = pInfo.getFO();
74 while (item != null &&!(item instanceof ListItem)) {
75 item = item.getParent();
76 }
77 if (item == null) {
78 throw new PropertyException("label-end() called from outside an fo:list-item");
79 }
80 Length startIndent = item.properties.get("start-indent").getLength();
81
82 LinearCombinationLength labelEnd = new LinearCombinationLength();
83
84 LengthBase base = new LengthBase(item, pInfo.getPropertyList(),
86 LengthBase.CONTAINING_BOX);
87 PercentLength refWidth = new PercentLength(1.0, base);
88
89 labelEnd.addTerm(1.0, refWidth);
90 labelEnd.addTerm(-1.0, distance);
91 labelEnd.addTerm(-1.0, startIndent);
92 labelEnd.addTerm(1.0, separation);
93
94 return new LengthProperty(labelEnd);
95 }
96
97 }
98 |
Popular Tags |
Java API By Example, From Geeks To Geeks.