Source Code Cross Referenced for TransientFieldsPanel.java in  » Net » Terracotta » org » terracotta » dso » editors » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » Terracotta » org.terracotta.dso.editors 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * All content copyright (c) 2003-2006 Terracotta, Inc., except as may otherwise be noted in a separate copyright notice.  All rights reserved.
003:         */
004:        package org.terracotta.dso.editors;
005:
006:        import org.apache.xmlbeans.XmlObject;
007:        import org.eclipse.core.resources.IProject;
008:        import org.eclipse.swt.SWT;
009:        import org.eclipse.swt.events.SelectionAdapter;
010:        import org.eclipse.swt.events.SelectionEvent;
011:        import org.eclipse.swt.layout.GridData;
012:        import org.eclipse.swt.layout.GridLayout;
013:        import org.eclipse.swt.widgets.Button;
014:        import org.eclipse.swt.widgets.Composite;
015:        import org.eclipse.swt.widgets.Event;
016:        import org.eclipse.swt.widgets.Label;
017:        import org.eclipse.swt.widgets.Listener;
018:        import org.eclipse.swt.widgets.Table;
019:        import org.eclipse.swt.widgets.TableColumn;
020:        import org.eclipse.swt.widgets.TableItem;
021:        import org.terracotta.dso.TcPlugin;
022:        import org.terracotta.dso.editors.chooser.ExpressionChooser;
023:        import org.terracotta.dso.editors.chooser.FieldBehavior;
024:        import org.terracotta.dso.editors.chooser.NavigatorBehavior;
025:        import org.terracotta.ui.util.SWTUtil;
026:
027:        import com.tc.util.event.UpdateEvent;
028:        import com.tc.util.event.UpdateEventListener;
029:        import com.terracottatech.config.DsoApplication;
030:        import com.terracottatech.config.QualifiedFieldName;
031:        import com.terracottatech.config.TransientFields;
032:
033:        public class TransientFieldsPanel extends ConfigurationEditorPanel {
034:            private IProject m_project;
035:            private DsoApplication m_dsoApp;
036:            private TransientFields m_transientFields;
037:
038:            private final Layout m_layout;
039:
040:            private AddHandler m_addHandler;
041:            private RemoveHandler m_removeHandler;
042:            private TableSelectionListener m_tableSelectionListener;
043:            private TableDataListener m_tableDataListener;
044:
045:            public TransientFieldsPanel(Composite parent, int style) {
046:                super (parent, style);
047:                m_layout = new Layout(this );
048:                m_addHandler = new AddHandler();
049:                m_removeHandler = new RemoveHandler();
050:                m_tableSelectionListener = new TableSelectionListener();
051:                m_tableDataListener = new TableDataListener();
052:            }
053:
054:            public boolean hasAnySet() {
055:                return m_transientFields != null
056:                        && m_transientFields.sizeOfFieldNameArray() > 0;
057:            }
058:
059:            private TransientFields ensureTransientFields() {
060:                if (m_transientFields == null) {
061:                    ensureXmlObject();
062:                }
063:                return m_transientFields;
064:            }
065:
066:            public void ensureXmlObject() {
067:                super .ensureXmlObject();
068:
069:                if (m_transientFields == null) {
070:                    removeListeners();
071:                    m_transientFields = m_dsoApp.addNewTransientFields();
072:                    updateChildren();
073:                    addListeners();
074:                }
075:            }
076:
077:            private void testRemoveTransientFields() {
078:                if (!hasAnySet() && m_dsoApp.getTransientFields() != null) {
079:                    m_dsoApp.unsetTransientFields();
080:                    m_transientFields = null;
081:                    fireXmlObjectStructureChanged(m_dsoApp);
082:                }
083:                fireTransientFieldsChanged();
084:                testDisableRemoveButton();
085:            }
086:
087:            private void addListeners() {
088:                m_layout.m_addButton.addSelectionListener(m_addHandler);
089:                m_layout.m_removeButton.addSelectionListener(m_removeHandler);
090:                m_layout.m_table.addSelectionListener(m_tableSelectionListener);
091:                m_layout.m_table.addListener(SWT.SetData, m_tableDataListener);
092:            }
093:
094:            private void removeListeners() {
095:                m_layout.m_addButton.removeSelectionListener(m_addHandler);
096:                m_layout.m_removeButton
097:                        .removeSelectionListener(m_removeHandler);
098:                m_layout.m_table
099:                        .removeSelectionListener(m_tableSelectionListener);
100:                m_layout.m_table.removeListener(SWT.SetData,
101:                        m_tableDataListener);
102:            }
103:
104:            public void updateChildren() {
105:                initTableItems();
106:                testDisableRemoveButton();
107:            }
108:
109:            public void updateModel() {
110:                removeListeners();
111:                updateChildren();
112:                addListeners();
113:            }
114:
115:            public void setup(IProject project, DsoApplication dsoApp) {
116:                setEnabled(true);
117:                removeListeners();
118:
119:                m_project = project;
120:                m_dsoApp = dsoApp;
121:                m_transientFields = m_dsoApp != null ? m_dsoApp
122:                        .getTransientFields() : null;
123:
124:                updateChildren();
125:                addListeners();
126:            }
127:
128:            public void tearDown() {
129:                removeListeners();
130:
131:                m_dsoApp = null;
132:                m_transientFields = null;
133:
134:                setEnabled(false);
135:            }
136:
137:            private void initTableItems() {
138:                m_layout.m_table.removeAll();
139:                if (m_transientFields == null)
140:                    return;
141:                XmlObject[] fields = m_transientFields.selectPath("*");
142:                for (int i = 0; i < fields.length; i++) {
143:                    createTableItem((QualifiedFieldName) fields[i]);
144:                }
145:                if (fields.length > 0) {
146:                    m_layout.m_table.setSelection(0);
147:                }
148:            }
149:
150:            private void initTableItem(TableItem item, QualifiedFieldName qfn) {
151:                item.setText(qfn.getStringValue());
152:            }
153:
154:            private void updateTableItem(int index) {
155:                TableItem item = m_layout.m_table.getItem(index);
156:                initTableItem(item, (QualifiedFieldName) item.getData());
157:            }
158:
159:            private void createTableItem(QualifiedFieldName qfn) {
160:                TableItem item = new TableItem(m_layout.m_table, SWT.NONE);
161:                initTableItem(item, qfn);
162:                item.setData(qfn);
163:            }
164:
165:            private void internalAddTransient(String fieldName) {
166:                TransientFields transientFields = ensureTransientFields();
167:                transientFields.addFieldName(fieldName);
168:                createTableItem(transientFields
169:                        .xgetFieldNameArray(transientFields
170:                                .sizeOfFieldNameArray() - 1));
171:
172:                int row = m_layout.m_table.getItemCount() - 1;
173:                m_layout.m_table.setSelection(row);
174:            }
175:
176:            public boolean isTransient(String fieldName) {
177:                return TcPlugin.getDefault().getConfigurationHelper(m_project)
178:                        .isTransient(fieldName);
179:            }
180:
181:            private static class Layout {
182:                private static final String TRANSIENT_FIELDS = "Transient Fields";
183:                private static final String ADD = "Add...";
184:                private static final String REMOVE = "Remove";
185:
186:                private final Button m_addButton;
187:                private final Button m_removeButton;
188:                private final Table m_table;
189:
190:                public void reset() {
191:                    m_removeButton.setEnabled(false);
192:                    m_table.removeAll();
193:                }
194:
195:                private Layout(Composite parent) {
196:                    Composite comp = new Composite(parent, SWT.NONE);
197:                    GridLayout gridLayout = new GridLayout(2, false);
198:                    gridLayout.marginWidth = gridLayout.marginHeight = 10;
199:                    comp.setLayout(gridLayout);
200:
201:                    Composite sidePanel = new Composite(comp, SWT.NONE);
202:                    gridLayout = new GridLayout();
203:                    gridLayout.marginWidth = gridLayout.marginHeight = 0;
204:                    sidePanel.setLayout(gridLayout);
205:                    sidePanel.setLayoutData(new GridData(GridData.FILL_BOTH));
206:
207:                    Label label = new Label(sidePanel, SWT.NONE);
208:                    label.setText(TRANSIENT_FIELDS);
209:                    label.setLayoutData(new GridData(
210:                            GridData.VERTICAL_ALIGN_BEGINNING));
211:
212:                    m_table = new Table(sidePanel, SWT.BORDER | SWT.MULTI
213:                            | SWT.FULL_SELECTION | SWT.V_SCROLL);
214:                    m_table.setHeaderVisible(true);
215:                    m_table.setLinesVisible(true);
216:                    SWTUtil.makeTableColumnsResizeWeightedWidth(sidePanel,
217:                            m_table, new int[] { 3, 1 });
218:                    SWTUtil.makeTableColumnsEditable(m_table, new int[] { 0 });
219:                    GridData gridData = new GridData(GridData.FILL_BOTH);
220:                    gridData.heightHint = SWTUtil.tableRowsToPixels(m_table, 3);
221:                    m_table.setLayoutData(gridData);
222:
223:                    TableColumn column = new TableColumn(m_table, SWT.NONE);
224:                    column.setText(TRANSIENT_FIELDS);
225:                    column.pack();
226:
227:                    Composite buttonPanel = new Composite(comp, SWT.NONE);
228:                    gridLayout = new GridLayout();
229:                    gridLayout.marginWidth = gridLayout.marginHeight = 0;
230:                    buttonPanel.setLayout(gridLayout);
231:                    buttonPanel.setLayoutData(new GridData(
232:                            GridData.VERTICAL_ALIGN_BEGINNING));
233:
234:                    new Label(buttonPanel, SWT.NONE); // filler
235:
236:                    m_addButton = new Button(buttonPanel, SWT.PUSH);
237:                    m_addButton.setText(ADD);
238:                    m_addButton.setLayoutData(new GridData(
239:                            GridData.VERTICAL_ALIGN_END));
240:                    SWTUtil.applyDefaultButtonSize(m_addButton);
241:
242:                    m_removeButton = new Button(buttonPanel, SWT.PUSH);
243:                    m_removeButton.setText(REMOVE);
244:                    m_removeButton.setEnabled(false);
245:                    m_removeButton.setLayoutData(new GridData(
246:                            GridData.VERTICAL_ALIGN_BEGINNING));
247:                    SWTUtil.applyDefaultButtonSize(m_removeButton);
248:                }
249:            }
250:
251:            private void testDisableRemoveButton() {
252:                m_layout.m_removeButton.setEnabled(m_layout.m_table
253:                        .getSelectionCount() > 0);
254:            }
255:
256:            private void handleTableSelection() {
257:                m_layout.m_removeButton.setEnabled(true);
258:            }
259:
260:            class AddHandler extends SelectionAdapter {
261:                public void widgetSelected(SelectionEvent e) {
262:                    m_layout.m_table.forceFocus();
263:                    NavigatorBehavior behavior = new FieldBehavior();
264:                    ExpressionChooser chooser = new ExpressionChooser(
265:                            getShell(), behavior.getTitle(),
266:                            FieldBehavior.ADD_MSG, m_project, behavior);
267:                    chooser.addValueListener(new UpdateEventListener() {
268:                        public void handleUpdate(UpdateEvent updateEvent) {
269:                            String[] items = (String[]) updateEvent.data;
270:                            for (int i = 0; i < items.length; i++) {
271:                                internalAddTransient(items[i]);
272:                            }
273:                            fireTransientFieldsChanged();
274:                        }
275:                    });
276:                    chooser.open();
277:                }
278:            }
279:
280:            class RemoveHandler extends SelectionAdapter {
281:                public void widgetSelected(SelectionEvent e) {
282:                    m_layout.m_table.setRedraw(false);
283:                    try {
284:                        m_layout.m_table.forceFocus();
285:                        int[] selection = m_layout.m_table
286:                                .getSelectionIndices();
287:
288:                        for (int i = selection.length - 1; i >= 0; i--) {
289:                            ensureTransientFields().removeFieldName(
290:                                    selection[i]);
291:                        }
292:                        m_layout.m_table.remove(selection);
293:                        testRemoveTransientFields();
294:                        handleTableSelection();
295:                    } finally {
296:                        m_layout.m_table.setRedraw(true);
297:                    }
298:                }
299:            }
300:
301:            class TableSelectionListener extends SelectionAdapter {
302:                public void widgetSelected(SelectionEvent e) {
303:                    handleTableSelection();
304:                }
305:            }
306:
307:            class TableDataListener implements  Listener {
308:                public void handleEvent(Event e) {
309:                    TableItem item = (TableItem) e.item;
310:                    int index = m_layout.m_table.getSelectionIndex();
311:                    QualifiedFieldName qfn = (QualifiedFieldName) item
312:                            .getData();
313:                    qfn.setStringValue(item.getText(e.index));
314:                    fireTransientFieldChanged(index);
315:                }
316:            }
317:
318:            public void transientFieldChanged(IProject project, int index) {
319:                if (project.equals(getProject())) {
320:                    int selIndex = m_layout.m_table.getSelectionIndex();
321:                    updateTableItem(index);
322:                    if (selIndex != -1) {
323:                        m_layout.m_table.setSelection(selIndex);
324:                    }
325:                }
326:            }
327:        }
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