|
1
51 package org.apache.fop.fo;
52
53 import org.apache.fop.layout.Area;
54 import org.apache.fop.layout.TextState;
55 import org.apache.fop.apps.FOPException;
56
57
61 public abstract class FObjMixed extends FObj {
62
63 protected TextState textState;
65
66 private StringBuffer  textBuffer;
67
68 protected FObjMixed(FObj parent, PropertyList propertyList,
69 String systemId, int line, int column)
70 throws FOPException {
71 super(parent, propertyList, systemId, line, column);
72 textState = propMgr.getTextDecoration(parent);
73
74 }
75
76 public TextState getTextState() {
77 return textState;
78 }
79
80 protected void addCharacters(char data[], int start, int length) {
81 if ( textBuffer==null ) {
82 textBuffer = new StringBuffer ();
83 }
84 textBuffer.append(data,start,length);
85 }
86
87 private final void finalizeText() {
88 if (textBuffer != null && textBuffer.length() > 0) {
89 FOText ft = new FOText(textBuffer, this);
90 ft.setTextState(textState);
91 super.addChild(ft);
92 textBuffer.setLength(0);
93 }
94 }
95
96 protected void end() {
97 finalizeText();
98 textBuffer=null;
99 }
100
101 protected void addChild(FONode child) {
102 finalizeText();
103 super.addChild(child);
104 }
105
106 public int layout(Area area) throws FOPException {
107
108 if (this.properties != null) {
109 Property prop = this.properties.get("id");
110 if (prop != null) {
111 String id = prop.getString();
112
113 if (this.marker == START) {
114 if (area.getIDReferences() != null) {
115 try {
116 area.getIDReferences().createID(id);
117 }
118 catch(FOPException e) {
119 if (!e.isLocationSet()) {
120 e.setLocation(systemId, line, column);
121 }
122 throw e;
123 }
124 }
125 this.marker = 0;
126 }
127
128 if (this.marker == 0) {
129 if (area.getIDReferences() != null)
130 area.getIDReferences().configureID(id, area);
131 }
132 }
133 }
134
135 int numChildren = this.children.size();
136 for (int i = this.marker; i < numChildren; i++) {
137 FONode fo = (FONode)children.get(i);
138 int status;
139 if (Status.isIncomplete((status = fo.layout(area)))) {
140 this.marker = i;
141 return status;
142 }
143 }
144 return Status.OK;
145 }
146
147 }
148
149 |
Popular Tags |
Java API By Example, From Geeks To Geeks.