Source Code Cross Referenced for AnnotationList.java in  » Workflow-Engines » osbl-1_0 » newprocess » diagram » cust » annotations » dialogs » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Workflow Engines » osbl 1_0 » newprocess.diagram.cust.annotations.dialogs 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * 
003:         */package newprocess.diagram.cust.annotations.dialogs;
004:
005:        import java.util.HashSet;
006:        import java.util.Iterator;
007:        import java.util.Set;
008:        import java.util.Vector;
009:
010:        import newprocess.diagram.cust.annotations.commands.DeleteCommand;
011:        import newprocess.diagram.cust.annotations.commands.ReadCommand;
012:        import newprocess.diagram.cust.annotations.commands.SortCommand;
013:        import newprocess.diagram.cust.annotations.commands.WriteCommand;
014:        import newprocess.diagram.cust.annotations.utils.URIConvertUtil;
015:
016:        import org.eclipse.core.resources.IFile;
017:        import org.eclipse.emf.common.util.BasicEList;
018:        import org.eclipse.emf.common.util.EList;
019:        import org.eclipse.gef.EditPart;
020:        import org.eclipse.gmf.runtime.diagram.ui.editpolicies.DecorationEditPolicy;
021:        import org.eclipse.gmf.runtime.diagram.ui.editpolicies.EditPolicyRoles;
022:        import org.eclipse.swt.widgets.Shell;
023:        import org.eclipse.ui.PlatformUI;
024:
025:        /**
026:         * Class that plays the role of the domain model in the NewAnnotationDialog
027:         * @author sh
028:         */
029:        public class AnnotationList {
030:            private Vector<Annotation> annotations = new Vector<Annotation>();
031:            private Set<IAnnotationViewer> changeListeners = new HashSet<IAnnotationViewer>();
032:            private EditPart selectedEditPart;
033:            private String projectName = null;
034:            public static final String STANDARD_TEXT = "(standard)";
035:
036:            /**
037:             * Constructor
038:             */
039:            public AnnotationList(EditPart selectedEditPart, String projectName) {
040:                super ();
041:                this .selectedEditPart = selectedEditPart;
042:                this .initData();
043:                this .projectName = projectName;
044:            }
045:
046:            /**
047:             * Return the collection of annotations
048:             */
049:            public Vector<Annotation> getAnnotations() {
050:                return annotations;
051:            }
052:
053:            /**
054:             * initialize some default entries 
055:             */
056:            private void initData() {
057:                // get the model data
058:                ReadCommand readCommand = new ReadCommand();
059:                EList urls = readCommand.getValues(selectedEditPart);
060:
061:                if (urls == null || urls.isEmpty())
062:                    return;
063:
064:                // create Annotation Objects
065:                Annotation exampleAnnotation = null;
066:                for (Iterator<Object> iter = urls.iterator(); iter.hasNext();) {
067:                    Object element = (Object) iter.next();
068:                    exampleAnnotation = new Annotation(element.toString());
069:                    exampleAnnotation.setUri(element.toString());
070:                    annotations.add(exampleAnnotation);
071:                }
072:            };
073:
074:            /**
075:             * Add a new annotation to the collection of annotations
076:             */
077:            public void addAnnotation() {
078:                Annotation annotation = new Annotation(
079:                        AnnotationList.STANDARD_TEXT);
080:                annotations.add(annotations.size(), annotation);
081:
082:                Iterator<IAnnotationViewer> iterator = changeListeners
083:                        .iterator();
084:                while (iterator.hasNext()) {
085:                    ((IAnnotationViewer) iterator.next())
086:                            .addAnnotation(annotation);
087:                }
088:            }
089:
090:            /**
091:             * Removes an Annotation
092:             * @param annotation
093:             */
094:            public void removeAnnotation(Annotation annotation) {
095:                // check if a standard text entry is in the collection
096:                deleteDummies();
097:
098:                // removes the annotation from the view
099:                annotations.remove(annotation);
100:
101:                // remove the annotation from the model
102:                // get the annotation to be removed
103:                String removingAnno = annotation.getUri().toString();
104:                if (removingAnno == null)
105:                    return;
106:
107:                // fetch all stored Annotations from the model
108:                ReadCommand readCommand = new ReadCommand();
109:                EList urls = readCommand.getValues(selectedEditPart);
110:                if (urls.isEmpty() || urls == null)
111:                    return;
112:
113:                // remove the commited annotation
114:                DeleteCommand deleteCommand = new DeleteCommand();
115:                deleteCommand.executeRemoveCommand(selectedEditPart,
116:                        removingAnno);
117:
118:                // notify the decorator
119:                Object editPolicy = selectedEditPart
120:                        .getEditPolicy(EditPolicyRoles.DECORATION_ROLE);
121:                if (editPolicy instanceof  DecorationEditPolicy) {
122:                    ((DecorationEditPolicy) editPolicy).refresh();
123:                }
124:
125:                Iterator<IAnnotationViewer> iterator = changeListeners
126:                        .iterator();
127:                while (iterator.hasNext())
128:                    ((IAnnotationViewer) iterator.next())
129:                            .removeAnnotation(annotation);
130:            }
131:
132:            /**
133:             * does the changes in the model
134:             * @param annotation
135:             */
136:            public void annotationChanged(Annotation annotation) {
137:                // check if a standard text entry is in the collection
138:                deleteDummies();
139:
140:                // first delete all entries in the model
141:                ReadCommand readCom = new ReadCommand();
142:                EList urls = readCom.getValues(selectedEditPart);
143:                DeleteCommand delCom = new DeleteCommand();
144:                delCom.executeRemoveCommand(selectedEditPart, urls);
145:
146:                // write all current annotations
147:                WriteCommand writeCommand = new WriteCommand();
148:                for (Iterator<Annotation> iter = annotations.iterator(); iter
149:                        .hasNext();) {
150:                    Annotation element = (Annotation) iter.next();
151:                    String url = element.getUri();
152:                    if (url.equals(STANDARD_TEXT))
153:                        continue;
154:                    writeCommand.executeWriteCommand(selectedEditPart, url);
155:                }
156:
157:                // notify the decorator
158:                Object editPolicy = selectedEditPart
159:                        .getEditPolicy(EditPolicyRoles.DECORATION_ROLE);
160:                if (editPolicy instanceof  DecorationEditPolicy) {
161:                    ((DecorationEditPolicy) editPolicy).refresh();
162:                }
163:
164:                // update the table view
165:                Iterator<IAnnotationViewer> iterator = changeListeners
166:                        .iterator();
167:                while (iterator.hasNext())
168:                    ((IAnnotationViewer) iterator.next())
169:                            .updateAnnotation(annotation);
170:            }
171:
172:            /**
173:             * moves the current annotation upwards 
174:             */
175:            public void moveAnnotationUp(Annotation annotation) {
176:                //check if it is the first element
177:                if (annotations.firstElement() == annotation)
178:                    return;
179:
180:                // check if a standard text entry is in the collection
181:                deleteDummies();
182:
183:                EList list = new BasicEList();
184:                list.addAll(annotations);
185:                int annoListIndex = list.indexOf(annotation);
186:                list.move(annoListIndex - 1, annotation);
187:                annotations.clear();
188:                annotations.addAll(list);
189:
190:                //*********************** model part *******************************	
191:                // fetch annotations from the model
192:                ReadCommand readCom = new ReadCommand();
193:                EList items = readCom.getValues(selectedEditPart);
194:                // get the index of the selected annotation in the model
195:                int annoIndex = items.indexOf(annotation.getUri().toString());
196:                // if it is the first element, do nothing
197:                if (annoIndex <= 0)
198:                    return;
199:                // move one position upwards
200:                SortCommand sortCom = new SortCommand();
201:                sortCom.executeMoveCommand(selectedEditPart, annotation
202:                        .getUri(), annoIndex - 1);
203:
204:                // notify the decorator
205:                Object editPolicy = selectedEditPart
206:                        .getEditPolicy(EditPolicyRoles.DECORATION_ROLE);
207:                if (editPolicy instanceof  DecorationEditPolicy) {
208:                    ((DecorationEditPolicy) editPolicy).refresh();
209:                }
210:
211:                // update the table view
212:                Iterator<IAnnotationViewer> iterator = changeListeners
213:                        .iterator();
214:                while (iterator.hasNext())
215:                    ((IAnnotationViewer) iterator.next())
216:                            .updateAnnotation(annotation);
217:            }
218:
219:            /**
220:             * moves the current annotation downwards 
221:             */
222:            public void moveAnnotationDown(Annotation annotation) {
223:                // check if it is the last element
224:                if (annotations.lastElement() == annotation)
225:                    return;
226:
227:                // check if a standard text entry is in the collection
228:                deleteDummies();
229:
230:                EList list = new BasicEList();
231:                list.addAll(annotations);
232:                int annoListIndex = list.indexOf(annotation);
233:                list.move(annoListIndex + 1, annotation);
234:                annotations.clear();
235:                annotations.addAll(list);
236:
237:                //*********************** model part *******************************
238:                // fetch annotations from the model
239:                ReadCommand readCom = new ReadCommand();
240:                EList items = readCom.getValues(selectedEditPart);
241:                // get the index of the selected annotation in the model
242:                int annoIndex = items.indexOf(annotation.getUri().toString());
243:                // move one position downwards
244:                SortCommand sortCom = new SortCommand();
245:                sortCom.executeMoveCommand(selectedEditPart, annotation
246:                        .getUri(), annoIndex + 1);
247:
248:                // notify the decorator
249:                Object editPolicy = selectedEditPart
250:                        .getEditPolicy(EditPolicyRoles.DECORATION_ROLE);
251:                if (editPolicy instanceof  DecorationEditPolicy) {
252:                    ((DecorationEditPolicy) editPolicy).refresh();
253:                }
254:
255:                // update the table view
256:                Iterator<IAnnotationViewer> iterator = changeListeners
257:                        .iterator();
258:                while (iterator.hasNext())
259:                    ((IAnnotationViewer) iterator.next())
260:                            .updateAnnotation(annotation);
261:            }
262:
263:            /**
264:             * link to an existing Annotation
265:             */
266:            public void linkToAnnotation() {
267:                // open the Workspace Selection Dialog
268:                Shell shell = PlatformUI.getWorkbench()
269:                        .getActiveWorkbenchWindow().getShell();
270:                ElementChooserDialog chooserDia = new ElementChooserDialog(
271:                        shell);
272:                chooserDia.open();
273:
274:                //opens the selection dialog and fetch the project/file
275:                String project = chooserDia.getSelectedProject();
276:                IFile file = chooserDia.getSelectedFile();
277:                if ((project == null) || (file == null)
278:                        || (projectName == null))
279:                    return;
280:
281:                // get the relative path for the created file
282:                URIConvertUtil uriUtil = new URIConvertUtil();
283:                String path = uriUtil
284:                        .getPathForFile(file, projectName, project);
285:
286:                //Add a new annotation to the collection of annotations
287:                Annotation annotation = new Annotation(path.toString());
288:                annotations.add(annotations.size(), annotation);
289:
290:                // refreshing the table and the model
291:                annotationChanged(annotation);
292:            }
293:
294:            /**
295:             * delete the dummies in the TableViewer
296:             */
297:            private void deleteDummies() {
298:                Vector<Annotation> v = new Vector<Annotation>();
299:                for (Iterator<Annotation> iter = annotations.iterator(); iter
300:                        .hasNext();) {
301:                    Annotation element = (Annotation) iter.next();
302:                    if (element.getUri().equals(STANDARD_TEXT)) {
303:                        v.add(element);
304:                    }
305:                }
306:                annotations.removeAll(v);
307:            }
308:
309:            /**
310:             * @param viewer
311:             */
312:            public void removeChangeListener(IAnnotationViewer viewer) {
313:                changeListeners.remove(viewer);
314:            }
315:
316:            /**
317:             * @param viewer
318:             */
319:            public void addChangeListener(IAnnotationViewer viewer) {
320:                changeListeners.add(viewer);
321:            }
322:
323:        }
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