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51 package org.apache.fop.fo.flow;
52
53 import org.apache.fop.fo.FObj;
55 import org.apache.fop.fo.PropertyList;
56 import org.apache.fop.fo.Status;
57 import org.apache.fop.fo.pagination.PageSequence;
58 import org.apache.fop.fo.properties.RetrieveBoundary;
59 import org.apache.fop.fo.properties.RetrievePosition;
60 import org.apache.fop.layout.Area;
61 import org.apache.fop.layout.AreaTree;
62 import org.apache.fop.layout.Page;
63 import org.apache.fop.apps.FOPException;
64
65 import java.util.ArrayList  ;
67
68 public class RetrieveMarker extends FObj {
69
70 private String retrieveClassName;
71 private int retrievePosition;
72 private int retrieveBoundary;
73 private Marker bestMarker;
74
75 public static class Maker extends FObj.Maker {
76 public FObj make(FObj parent, PropertyList propertyList,
77 String systemId, int line, int column)
78 throws FOPException {
79 return new RetrieveMarker(parent, propertyList,
80 systemId, line, column);
81 }
82
83 }
84
85 public static FObj.Maker maker() {
86 return new RetrieveMarker.Maker();
87 }
88
89 public RetrieveMarker(FObj parent, PropertyList propertyList,
90 String systemId, int line, int column) {
91 super(parent, propertyList, systemId, line, column);
92
93 this.retrieveClassName =
94 this.properties.get("retrieve-class-name").getString();
95 this.retrievePosition =
96 this.properties.get("retrieve-position").getEnum();
97 this.retrieveBoundary =
98 this.properties.get("retrieve-boundary").getEnum();
99 }
100
101 public String getName() {
102 return "fo:retrieve-marker";
103 }
104
105 public int layout(Area area) throws FOPException {
106 if (marker == START) {
107 marker = 0;
108 Page containingPage = area.getPage();
112 bestMarker = searchPage(containingPage);
113
114 if (bestMarker != null) {
115 bestMarker.resetMarkerContent();
116 return bestMarker.layoutMarker(area);
117 }
118 AreaTree areaTree = containingPage.getAreaTree();
121 if (retrieveBoundary == RetrieveBoundary.PAGE_SEQUENCE) {
122 PageSequence pageSequence = areaTree.getCurrentPageSequence();
123 if (pageSequence == containingPage.getPageSequence() ) {
124 return layoutBestMarker(areaTree.getCurrentPageSequenceMarkers(),area);
125 }
126 } else if (retrieveBoundary == RetrieveBoundary.DOCUMENT) {
127 return layoutBestMarker(areaTree.getDocumentMarkers(),area);
128 } else if (retrieveBoundary != RetrieveBoundary.PAGE) {
129 throw new FOPException("Illegal 'retrieve-boundary' value", systemId, line, column);
130 }
131 } else if (bestMarker != null) {
132 return bestMarker.layoutMarker(area);
133 }
134 return Status.OK;
135 }
136
137 private int layoutBestMarker(ArrayList markers, Area area)
138 throws FOPException {
139 if (markers!=null) {
140 for (int i = markers.size() - 1; i >= 0; i--) {
141 Marker currentMarker = (Marker)markers.get(i);
142 if (currentMarker.getMarkerClassName().equals(retrieveClassName)) {
143 bestMarker = currentMarker;
144 bestMarker.resetMarkerContent();
145 return bestMarker.layoutMarker(area);
146 }
147 }
148 }
149 return Status.OK;
150 }
151
152 private Marker searchPage(Page page) throws FOPException {
153 ArrayList pageMarkers = page.getMarkers();
154 if (pageMarkers.isEmpty()) {
155 return null;
156 }
157
158 if (retrievePosition == RetrievePosition.FIC) {
161 for (int i = 0; i < pageMarkers.size(); i++) {
162 Marker currentMarker = (Marker)pageMarkers.get(i);
163 if (currentMarker.getMarkerClassName().equals(retrieveClassName)) {
164 return currentMarker;
165 }
166 }
167 } else if (retrievePosition == RetrievePosition.FSWP) {
168 for (int i = 0; i < pageMarkers.size(); i++) {
169 Marker currentMarker = (Marker)pageMarkers.get(i);
170 if (currentMarker.getMarkerClassName().equals(retrieveClassName)) {
171 if (currentMarker.getRegistryArea().isFirst()) {
172 return currentMarker;
173 }
174 }
175 }
176 } else if (retrievePosition == RetrievePosition.LSWP) {
177 for (int i = pageMarkers.size() - 1; i >= 0; i--) {
178 Marker currentMarker = (Marker)pageMarkers.get(i);
179 if (currentMarker.getMarkerClassName().equals(retrieveClassName)) {
180 if (currentMarker.getRegistryArea().isFirst()) {
181 return currentMarker;
182 }
183 }
184 }
185
186 } else if (retrievePosition == RetrievePosition.LEWP) {
187 for (int i = pageMarkers.size() - 1; i >= 0; i--) {
188 Marker currentMarker = (Marker)pageMarkers.get(i);
189 if (currentMarker.getMarkerClassName().equals(retrieveClassName)) {
190 if (currentMarker.getRegistryArea().isLast()) {
191 return currentMarker;
192 }
193 }
194 }
195
196 } else {
197 throw new FOPException("Illegal 'retrieve-position' value", systemId, line, column);
198 }
199 return null;
200 }
201
202 }
203 |
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