/*****************************************************************
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
****************************************************************/
package org.apache.cayenne.modeler.editor;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Collection;
import java.util.EventObject;
import java.util.List;
import javax.swing.DefaultCellEditor;
import javax.swing.DefaultComboBoxModel;
import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JTable;
import javax.swing.JToolBar;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableColumn;
import org.apache.cayenne.map.DataMap;
import org.apache.cayenne.map.DeleteRule;
import org.apache.cayenne.map.ObjEntity;
import org.apache.cayenne.map.ObjRelationship;
import org.apache.cayenne.map.event.EntityEvent;
import org.apache.cayenne.map.event.ObjEntityListener;
import org.apache.cayenne.map.event.ObjRelationshipListener;
import org.apache.cayenne.map.event.RelationshipEvent;
import org.apache.cayenne.modeler.Application;
import org.apache.cayenne.modeler.ProjectController;
import org.apache.cayenne.modeler.action.CopyRelationshipAction;
import org.apache.cayenne.modeler.action.CreateRelationshipAction;
import org.apache.cayenne.modeler.action.CutRelationshipAction;
import org.apache.cayenne.modeler.action.ObjEntitySyncAction;
import org.apache.cayenne.modeler.action.PasteAction;
import org.apache.cayenne.modeler.action.RemoveRelationshipAction;
import org.apache.cayenne.modeler.dialog.objentity.ObjRelationshipInfoController;
import org.apache.cayenne.modeler.event.EntityDisplayEvent;
import org.apache.cayenne.modeler.event.ObjEntityDisplayListener;
import org.apache.cayenne.modeler.event.RelationshipDisplayEvent;
import org.apache.cayenne.modeler.event.TablePopupHandler;
import org.apache.cayenne.modeler.util.CayenneTable;
import org.apache.cayenne.modeler.util.CayenneWidgetFactory;
import org.apache.cayenne.modeler.util.CellRenderers;
import org.apache.cayenne.modeler.util.ModelerUtil;
import org.apache.cayenne.modeler.util.PanelFactory;
import org.apache.cayenne.modeler.util.UIUtil;
import org.apache.cayenne.modeler.util.combo.AutoCompletion;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Displays ObjRelationships for the edited ObjEntity.
*
*/
public class ObjEntityRelationshipTab extends JPanel implements ObjEntityDisplayListener,
ObjEntityListener, ObjRelationshipListener, ExistingSelectionProcessor {
private static Log logObj = LogFactory.getLog(ObjEntityRelationshipTab.class);
private static final Object[] deleteRules = new Object[] {
DeleteRule.deleteRuleName(DeleteRule.NO_ACTION),
DeleteRule.deleteRuleName(DeleteRule.NULLIFY),
DeleteRule.deleteRuleName(DeleteRule.CASCADE),
DeleteRule.deleteRuleName(DeleteRule.DENY),
};
ProjectController mediator;
CayenneTable table;
JButton resolve;
/**
* By now popup menu item is made similiar to toolbar button.
* (i.e. all functionality is here)
* This should be probably refactored as Action.
*/
protected JMenuItem resolveMenu;
public ObjEntityRelationshipTab(ProjectController mediator) {
this.mediator = mediator;
init();
initController();
}
private void init() {
this.setLayout(new BorderLayout());
JToolBar toolBar = new JToolBar();
Application app = Application.getInstance();
toolBar
.add(app
.getAction(CreateRelationshipAction.getActionName())
.buildButton());
toolBar.add(app.getAction(ObjEntitySyncAction.getActionName()).buildButton());
toolBar.addSeparator();
Icon ico = ModelerUtil.buildIcon("icon-info.gif");
resolve = new JButton();
resolve.setIcon(ico);
resolve.setToolTipText("Edit Relationship");
toolBar.add(resolve);
toolBar.addSeparator();
toolBar.add(app.getAction(RemoveRelationshipAction.getActionName()).buildButton());
toolBar.addSeparator();
toolBar.add(app.getAction(CutRelationshipAction.getActionName()).buildButton());
toolBar.add(app.getAction(CopyRelationshipAction.getActionName()).buildButton());
toolBar.add(app.getAction(PasteAction.getActionName()).buildButton());
add(toolBar, BorderLayout.NORTH);
table = new CayenneTable();
table.setDefaultRenderer(String.class, new StringRenderer());
table.setDefaultRenderer(ObjEntity.class, new EntityRenderer());
/**
* Create and install a popup
*/
resolveMenu = new JMenuItem("Database Mapping", ico);
JPopupMenu popup = new JPopupMenu();
popup.add(resolveMenu);
popup.add(app.getAction(RemoveRelationshipAction.getActionName()).buildMenu());
popup.addSeparator();
popup.add(app.getAction(CutRelationshipAction.getActionName()).buildMenu());
popup.add(app.getAction(CopyRelationshipAction.getActionName()).buildMenu());
popup.add(app.getAction(PasteAction.getActionName()).buildMenu());
TablePopupHandler.install(table, popup);
add(PanelFactory.createTablePanel(table, null), BorderLayout.CENTER);
}
private void initController() {
mediator.addObjEntityDisplayListener(this);
mediator.addObjEntityListener(this);
mediator.addObjRelationshipListener(this);
ActionListener resolver = new ActionListener() {
public void actionPerformed(ActionEvent e) {
int row = table.getSelectedRow();
if (row < 0) {
return;
}
ObjRelationshipTableModel model = (ObjRelationshipTableModel) table
.getModel();
new ObjRelationshipInfoController(mediator, model.getRelationship(row))
.startup();
/**
* This is required for a table to be updated properly
*/
table.cancelEditing();
// need to refresh selected row... do this by unselecting/selecting the
// row
table.getSelectionModel().clearSelection();
table.select(row);
}
};
resolve.addActionListener(resolver);
resolveMenu.addActionListener(resolver);
table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
processExistingSelection(e);
}
});
mediator.getApplication().getActionManager().setupCCP(table,
CutRelationshipAction.getActionName(), CopyRelationshipAction.getActionName());
}
/**
* Selects a specified relationship in the relationships table.
*/
public void selectRelationships(ObjRelationship[] rels) {
ModelerUtil.updateActions(rels.length,
RemoveRelationshipAction.getActionName(),
CutRelationshipAction.getActionName(),
CopyRelationshipAction.getActionName());
ObjRelationshipTableModel model = (ObjRelationshipTableModel) table.getModel();
List listAttrs = model.getObjectList();
int[] newSel = new int[rels.length];
for (int i = 0; i < rels.length; i++) {
newSel[i] = listAttrs.indexOf(rels[i]);
}
table.select(newSel);
}
public void processExistingSelection(EventObject e) {
if (e instanceof ChangeEvent) {
table.clearSelection();
}
ObjRelationship[] rels = new ObjRelationship[0];
if (table.getSelectedRow() >= 0) {
ObjRelationshipTableModel model = (ObjRelationshipTableModel) table
.getModel();
int[] sel = table.getSelectedRows();
rels = new ObjRelationship[sel.length];
for (int i = 0; i < sel.length; i++) {
rels[i] = model.getRelationship(sel[i]);
}
resolve.setEnabled(true);
// scroll table
UIUtil.scrollToSelectedRow(table);
}
else {
resolve.setEnabled(false);
}
resolveMenu.setEnabled(resolve.isEnabled());
RelationshipDisplayEvent ev = new RelationshipDisplayEvent(this, rels, mediator
.getCurrentObjEntity(), mediator.getCurrentDataMap(), mediator
.getCurrentDataDomain());
mediator.fireObjRelationshipDisplayEvent(ev);
}
/** Loads obj relationships into table. */
public void currentObjEntityChanged(EntityDisplayEvent e) {
if (e.getSource() == this) {
return;
}
ObjEntity entity = (ObjEntity) e.getEntity();
// Important: process event even if this is the same entity,
// since the inheritance structure might have changed
if (entity != null) {
rebuildTable(entity);
}
// if an entity was selected on a tree,
// unselect currently selected row
if (e.isUnselectAttributes()) {
table.clearSelection();
}
}
/**
* Creates a list of ObjEntity names.
*/
private Object[] createObjEntityComboModel() {
DataMap map = mediator.getCurrentDataMap();
// this actually happens per CAY-221... can't reproduce though
if (map == null) {
logObj.warn("createObjEntityComboModel:: Null DataMap.");
return new Object[0];
}
if (map.getNamespace() == null) {
logObj.warn("createObjEntityComboModel:: Null DataMap namespace - " + map);
return new Object[0];
}
Collection objEntities = map.getNamespace().getObjEntities();
return objEntities.toArray();
}
public void objEntityChanged(EntityEvent e) {
}
public void objEntityAdded(EntityEvent e) {
reloadEntityList(e);
}
public void objEntityRemoved(EntityEvent e) {
reloadEntityList(e);
}
public void objRelationshipChanged(RelationshipEvent e) {
table.select(e.getRelationship());
}
public void objRelationshipAdded(RelationshipEvent e) {
rebuildTable((ObjEntity) e.getEntity());
table.select(e.getRelationship());
}
public void objRelationshipRemoved(RelationshipEvent e) {
ObjRelationshipTableModel model = (ObjRelationshipTableModel) table.getModel();
int ind = model.getObjectList().indexOf(e.getRelationship());
model.removeRow(e.getRelationship());
table.select(ind);
}
/**
* Refresh the list of ObjEntity targets. Also refresh the table in case some
* ObjRelationships were deleted.
*/
private void reloadEntityList(EntityEvent e) {
if (e.getSource() != this) {
return;
}
// If current model added/removed, do nothing.
ObjEntity entity = mediator.getCurrentObjEntity();
if (entity == e.getEntity() || entity == null) {
return;
}
TableColumn col = table.getColumnModel().getColumn(
ObjRelationshipTableModel.REL_TARGET);
DefaultCellEditor editor = (DefaultCellEditor) col.getCellEditor();
JComboBox combo = (JComboBox) editor.getComponent();
combo.setRenderer(CellRenderers.entityListRendererWithIcons(entity.getDataMap()));
combo.setModel(new DefaultComboBoxModel(createObjEntityComboModel()));
ObjRelationshipTableModel model = (ObjRelationshipTableModel) table.getModel();
model.fireTableDataChanged();
}
protected void rebuildTable(ObjEntity entity) {
final ObjRelationshipTableModel model = new ObjRelationshipTableModel(
entity,
mediator,
this);
model.addTableModelListener(new TableModelListener() {
public void tableChanged(TableModelEvent e) {
if (table.getSelectedRow() >= 0) {
ObjRelationship rel = model.getRelationship(table.getSelectedRow());
if (((ObjEntity) rel.getSourceEntity()).getDbEntity() != null) {
resolve.setEnabled(true);
}
else
resolve.setEnabled(false);
resolveMenu.setEnabled(resolve.isEnabled());
}
}
});
table.setModel(model);
table.setRowHeight(25);
table.setRowMargin(3);
TableColumn lockColumn = table.getColumnModel().getColumn(
ObjRelationshipTableModel.REL_LOCKING);
lockColumn.setMinWidth(100);
TableColumn col = table.getColumnModel().getColumn(
ObjRelationshipTableModel.REL_NAME);
col.setMinWidth(150);
col = table.getColumnModel().getColumn(ObjRelationshipTableModel.REL_TARGET);
col.setMinWidth(150);
JComboBox targetCombo = CayenneWidgetFactory.createComboBox(
createObjEntityComboModel(),
false);
AutoCompletion.enable(targetCombo);
targetCombo.setRenderer(CellRenderers.entityListRendererWithIcons(entity
.getDataMap()));
targetCombo.setSelectedIndex(-1);
col.setCellEditor(CayenneWidgetFactory.createCellEditor(targetCombo));
col = table.getColumnModel().getColumn(ObjRelationshipTableModel.REL_SEMANTICS);
col.setMinWidth(150);
col = table.getColumnModel().getColumn(ObjRelationshipTableModel.REL_DELETERULE);
col.setMinWidth(60);
JComboBox deleteRulesCombo = CayenneWidgetFactory.createComboBox(
deleteRules,
false);
deleteRulesCombo.setEditable(false);
deleteRulesCombo.setSelectedIndex(0); // Default to the first value
col.setCellEditor(CayenneWidgetFactory.createCellEditor(deleteRulesCombo));
}
class EntityRenderer extends StringRenderer {
@Override
public Component getTableCellRendererComponent(
JTable table,
Object value,
boolean isSelected,
boolean hasFocus,
int row,
int column) {
Object oldValue = value;
value = CellRenderers.asString(value);
super.getTableCellRendererComponent(
table,
value,
isSelected,
hasFocus,
row,
column);
setIcon(CellRenderers.iconForObject(oldValue));
return this;
}
}
class StringRenderer extends DefaultTableCellRenderer {
@Override
public Component getTableCellRendererComponent(
JTable table,
Object value,
boolean isSelected,
boolean hasFocus,
int row,
int column) {
// center cardinality column
int align = column == ObjRelationshipTableModel.REL_SEMANTICS
? JLabel.CENTER
: JLabel.LEFT;
super.setHorizontalAlignment(align);
super.getTableCellRendererComponent(
table,
value,
isSelected,
hasFocus,
row,
column);
ObjRelationshipTableModel model = (ObjRelationshipTableModel) table
.getModel();
ObjRelationship relationship = model.getRelationship(row);
if (relationship != null
&& relationship.getSourceEntity() != model.getEntity()) {
setForeground(Color.GRAY);
}
else {
setForeground(isSelected && !hasFocus
? table.getSelectionForeground()
: table.getForeground());
}
return this;
}
}
}