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Java > Open Source Codes > org > objectstyle > cayenne > modeler > editor > DbEntityTabbedView


1 /* ====================================================================
2  *
3  * The ObjectStyle Group Software License, version 1.1
4  * ObjectStyle Group - http://objectstyle.org/
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6  * Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
7  * of the software. All rights reserved.
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56 package org.objectstyle.cayenne.modeler.editor;
57
58 import java.awt.Component JavaDoc;
59
60 import javax.swing.JScrollPane JavaDoc;
61 import javax.swing.JTabbedPane JavaDoc;
62 import javax.swing.event.ChangeEvent JavaDoc;
63 import javax.swing.event.ChangeListener JavaDoc;
64
65 import org.objectstyle.cayenne.map.Attribute;
66 import org.objectstyle.cayenne.map.DbAttribute;
67 import org.objectstyle.cayenne.map.DbRelationship;
68 import org.objectstyle.cayenne.map.Relationship;
69 import org.objectstyle.cayenne.modeler.Application;
70 import org.objectstyle.cayenne.modeler.ProjectController;
71 import org.objectstyle.cayenne.modeler.action.RemoveAttributeAction;
72 import org.objectstyle.cayenne.modeler.action.RemoveRelationshipAction;
73 import org.objectstyle.cayenne.modeler.event.AttributeDisplayEvent;
74 import org.objectstyle.cayenne.modeler.event.DbAttributeDisplayListener;
75 import org.objectstyle.cayenne.modeler.event.DbEntityDisplayListener;
76 import org.objectstyle.cayenne.modeler.event.DbRelationshipDisplayListener;
77 import org.objectstyle.cayenne.modeler.event.EntityDisplayEvent;
78 import org.objectstyle.cayenne.modeler.event.RelationshipDisplayEvent;
79
80 public class DbEntityTabbedView extends JTabbedPane JavaDoc implements ChangeListener JavaDoc,
81         DbEntityDisplayListener, DbRelationshipDisplayListener,
82         DbAttributeDisplayListener {
83
84     protected ProjectController mediator;
85
86     protected DbEntityTab entityPanel;
87     protected DbEntityAttributeTab attributesPanel;
88     protected DbEntityRelationshipTab relationshipsPanel;
89
90     public DbEntityTabbedView(ProjectController mediator) {
91         super();
92         this.mediator = mediator;
93         mediator.addDbEntityDisplayListener(this);
94         mediator.addDbAttributeDisplayListener(this);
95         mediator.addDbRelationshipDisplayListener(this);
96
97         setTabPlacement(JTabbedPane.TOP);
98
99         // add panels to tabs
100 // note that those panels that have no internal scrollable tables
101 // must be wrapped in a scroll pane
102
103         entityPanel = new DbEntityTab(mediator);
104         addTab("Entity", new JScrollPane JavaDoc(entityPanel));
105         attributesPanel = new DbEntityAttributeTab(mediator);
106         addTab("Attributes", attributesPanel);
107         relationshipsPanel = new DbEntityRelationshipTab(mediator);
108         addTab("Relationships", relationshipsPanel);
109
110         addChangeListener(this);
111     }
112
113     /** Reset the remove buttons */
114     private void resetRemoveButtons(){
115         Application app = Application.getInstance();
116         app.getAction(RemoveAttributeAction.getActionName()).setEnabled(false);
117         app.getAction(RemoveRelationshipAction.getActionName()).setEnabled(false);
118     }
119     
120     /** Handle focus when tab changes. */
121     public void stateChanged(ChangeEvent JavaDoc e) {
122         resetRemoveButtons();
123         
124         // find source view
125 Component JavaDoc selected = getSelectedComponent();
126         while (selected instanceof JScrollPane JavaDoc) {
127             selected = ((JScrollPane JavaDoc) selected).getViewport().getView();
128         }
129
130         ExistingSelectionProcessor proc = (ExistingSelectionProcessor) selected;
131         proc.processExistingSelection(e);
132     }
133
134     /** If entity is null hides it's contents, otherwise makes it visible. */
135     public void currentDbEntityChanged(EntityDisplayEvent e) {
136         resetRemoveButtons();
137         setVisible(e.getEntity() != null);
138     }
139
140     public void currentDbRelationshipChanged(RelationshipDisplayEvent e) {
141         if (e.getEntity() == null) {
142             return;
143         }
144
145         // update relationship selection
146 Relationship rel = e.getRelationship();
147         if (rel instanceof DbRelationship) {
148             
149             // reset tab to relationship
150 if (getSelectedComponent() != relationshipsPanel) {
151                 setSelectedComponent(relationshipsPanel);
152                 relationshipsPanel.setVisible(true);
153             }
154             
155             relationshipsPanel.selectRelationship((DbRelationship) rel);
156         }
157     }
158
159     public void currentDbAttributeChanged(AttributeDisplayEvent e) {
160         if (e.getEntity() == null)
161             return;
162
163         // update relationship selection
164 Attribute attr = e.getAttribute();
165         if (attr instanceof DbAttribute) {
166             if (getSelectedComponent() != attributesPanel){
167                 setSelectedComponent(attributesPanel);
168                 attributesPanel.setVisible(true);
169             }
170             attributesPanel.selectAttribute((DbAttribute) attr);
171         }
172     }
173 }
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