SimpleObjectSelectionMetaAttributeEditor.java

/***************************************************
*
* cismet GmbH, Saarbruecken, Germany
*
*              ... and it just works.
*
****************************************************/
/*
 * SimpleBooleanMetaAttributeEditor.java
 *
 * Created on 29. August 2004, 15:48
 */
package Sirius.navigator.ui.attributes.editor.metaobject;
import org.apache.log4j.Logger;

import java.awt.event.ItemEvent;

import java.util.Iterator;
import java.util.Map;

import javax.swing.DefaultComboBoxModel;

/**
 * DOCUMENT ME!
 *
 * @author   Pascal
 * @version  $Revision$, $Date$
 */
public abstract class SimpleObjectSelectionMetaAttributeEditor extends AbstractSimpleMetaAttributeEditor {

    //~ Instance fields --------------------------------------------------------

    protected Map selectionValues;

    // Variables declaration - do not modify
    private javax.swing.JComboBox stringComboBox;
    // End of variables declaration

    //~ Constructors -----------------------------------------------------------

    /**
     * Creates new form SimpleBooleanMetaAttributeEditor.
     */
    public SimpleObjectSelectionMetaAttributeEditor() {
        this.logger = Logger.getLogger(this.getClass());
        this.selectionValues = this.getSelectionValues();

        this.editorActivationDelegate = new SimpleEditorActivationDelegate();
        this.editorUIDelegate = new SimpleEditorUIDelegate();
        this.readOnly = false;

        this.initComponents();

        this.stringComboBox.setModel((new DefaultComboBoxModel(
                    (Object[])selectionValues.keySet().toArray(new Object[selectionValues.size()]))));
    }

    //~ Methods ----------------------------------------------------------------

    /**
     * DOCUMENT ME!
     *
     * @return  DOCUMENT ME!
     */
    protected abstract Map getSelectionValues();

    /*protected Map getSelectionValues()
     * {  HashMap selectionValues = new HashMap();    selectionValues.put("Wert 1", null);  selectionValues.put("Wert
     * 2", new Boolean(true));  selectionValues.put("Wert 3", "w3");    return selectionValues;}*/

    /**
     * This method is called from within the constructor to initialize the form. WARNING: Do NOT modify this code. The
     * content of this method is always regenerated by the Form Editor.
     */
    private void initComponents() {
        final java.awt.GridBagConstraints gridBagConstraints;

        stringComboBox = new javax.swing.JComboBox();

        setLayout(new java.awt.GridBagLayout());

        stringComboBox.addItemListener(new java.awt.event.ItemListener() {

                @Override
                public void itemStateChanged(final java.awt.event.ItemEvent evt) {
                    stringComboBoxItemStateChanged(evt);
                }
            });

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.weightx = 1.0;
        add(stringComboBox, gridBagConstraints);
    }

    /**
     * DOCUMENT ME!
     *
     * @param  evt  DOCUMENT ME!
     */
    private void stringComboBoxItemStateChanged(final java.awt.event.ItemEvent evt) {
        if (evt.getStateChange() == ItemEvent.SELECTED) {
            if (logger.isDebugEnabled()) {
                logger.debug("stringComboBoxItemStateChanged() item selected: " + evt.getItem()); // NOI18N
            }
            this.setValueChanged(true);
            this.stopEditing();
        }
    }

    @Override
    protected void initUI() {
        this.stringComboBox.setEnabled(this.isEditable(null));
    }

    @Override
    public boolean isEditable(final java.util.EventObject anEvent) {
        return true;
    }

    @Override
    protected Object getComponentValue() {
        final Object value = this.selectionValues.get(this.stringComboBox.getSelectedItem());

        if ((value == null) && logger.isDebugEnabled()) {
            logger.debug("value of item '" + this.stringComboBox.getSelectedItem() + "' is null, return item"); // NOI18N
        }

        // if(logger.isDebugEnabled())logger.debug("value of item '" + this.stringComboBox.getSelectedItem() + "' is
        // null, return item"); return this.stringComboBox.getSelectedItem();

        return value;
    }

    // value ist immer ein Attribut!!!
    @Override
    protected void setComponentValue(final Object value) {
        if (logger.isDebugEnabled()) {
            logger.debug("setComponentValue(): setting value: " + value);                                           // NOI18N
        }
        if ((value != null) && (this.getAttributeValue(value) != null)) {
            final Object attributeValue = this.getAttributeValue(value);
            if (this.selectionValues.values().contains(attributeValue)) {
                if (logger.isDebugEnabled()) {
                    logger.debug("setComponentValue(value): this.stringComboBox.setSelectedItem(value): " + value); // NOI18N
                }
                final Iterator iterator = this.selectionValues.keySet().iterator();
                while (iterator.hasNext()) {
                    final Object key = iterator.next();
                    if ((this.selectionValues.get(key) != null)
                                && this.selectionValues.get(key).equals(attributeValue)) {
                        this.stringComboBox.setSelectedItem(key);
                        break;
                    }
                }
            } else if (this.selectionValues.keySet().contains(attributeValue)) {
                if (logger.isDebugEnabled()) {
                    logger.debug("setComponentValue(key): this.stringComboBox.setSelectedItem(value): " + value);   // NOI18N
                }
                this.stringComboBox.setSelectedItem(attributeValue);
            } else {
                logger.warn("setComponentValue(): new value (" + value
                            + ") is not in the list of allowed selection values");                                  // NOI18N
                this.stringComboBox.setSelectedIndex(0);

                /*logger.debug(value.getClass());
                 * Iterator iterator = this.selectionValues.iterator(); while(iterator.hasNext()) {
                 * logger.debug(iterator.next());}*/
            }
        } else {
            // standardm\u00E4\u00DFig auf 0 setzen
            this.stringComboBox.setSelectedIndex(0);
            if (logger.isDebugEnabled()) {
                logger.debug("setComponentValue(): value is null, setting index 0 to: " + this.getComponentValue()); // NOI18N
            }
            this.setValue(this.getComponentValue());
            this.setValueChanged(true);
        }
    }

    @Override
    protected Sirius.navigator.ui.attributes.editor.metaobject.AbstractSimpleMetaAttributeEditor.ValueChangeListener
    getValueChangeListener() {
        return null;
    }
}