/******************************************************************************* * Copyright ? 2008 Sandro Badame. All Rights Reserved. *  * This software and the accompanying materials is available under the  * Eclipse Public License 1.0 (EPL), which accompanies this distribution, and is * available at http://visualjpf.sourceforge.net/epl-v10.html ******************************************************************************/package com.javapathfinder.vjp.config.editors.userdefined;import org.eclipse.jface.dialogs.MessageDialog;import org.eclipse.jface.viewers.CellEditor;import org.eclipse.jface.viewers.ICellModifier;import org.eclipse.jface.viewers.ILabelProviderListener;import org.eclipse.jface.viewers.IStructuredContentProvider;import org.eclipse.jface.viewers.ITableLabelProvider;import org.eclipse.jface.viewers.TextCellEditor;import org.eclipse.jface.viewers.Viewer;import org.eclipse.swt.SWT;import org.eclipse.swt.graphics.Image;import org.eclipse.swt.widgets.Composite;import org.eclipse.swt.widgets.TableColumn;import org.eclipse.swt.widgets.TableItem;import com.javapathfinder.vjp.VJP;import com.javapathfinder.vjp.config.editors.ModePropertyConfiguration;import com.javapathfinder.vjp.config.editors.Property;import com.javapathfinder.vjp.config.editors.PropertyViewer;/** * Displays the user defined properties to be saved and modified. * @author Sandro Badame */public class UserDefinedPropertiesViewer extends PropertyViewer {  private String[] HEADERS = new String[] { "Name", "Value" };  private ModePropertyConfiguration properties;  /**   * Constructs this PropertyViewer   *    * @param parent the parent composite   * @param properties the properties that this viewer will modify   */  public UserDefinedPropertiesViewer(Composite parent, ModePropertyConfiguration properties) {    super(parent, properties);    this.properties = properties;    CellEditor[] editors = new CellEditor[] { new TextCellEditor(getTable()),                                              new TextCellEditor(getTable()) };    setCellEditors(editors);    setColumnProperties(HEADERS);    setContentProvider(new CustomPropertyContentProvider());    setCellModifier(new CustomPropertyModifier());    setLabelProvider(new CustomPropertyLabelProvider());    setSorter(new PropertySorter());    TableColumn nameColumn = new TableColumn(getTable(), SWT.NULL);    TableColumn valueColumn = new TableColumn(getTable(), SWT.NULL);    nameColumn.setText("Property");    nameColumn.pack();    nameColumn.setWidth(200);        valueColumn.setText("Value");    valueColumn.pack();    valueColumn.setWidth(500);    setInput(properties);  }    private class CustomPropertyModifier implements ICellModifier {    // All cells can be edited    public boolean canModify(Object element, String property) {      return true;    }    public Object getValue(Object element, String column) {      if (column.equals(HEADERS[0]))        return ((Property) element).getName();      else        return ((Property) element).getValue();    }    public void modify(Object element, String column, Object value) {      Property property = (Property) (((TableItem)element).getData());      String newValue = (String) value;      if (column.equals(HEADERS[0])) {        if (properties.isDefaultProperty(newValue)) {          new MessageDialog(getControl().getShell(),                            "Property is already defined.",                            null,                            "The property '"+property.getName()+"' is"+                            "already defined in the default properties."+                            " Please change its value there.",                            MessageDialog.WARNING,                            new String[]{"OK"},                            0).open();        } else {          properties.renameProperty(property.getName(), newValue);          property.setName(newValue);        }      } else {        properties.setProperty(property, newValue);      }      refresh();    }      }  private class CustomPropertyLabelProvider implements ITableLabelProvider {    public String getColumnText(Object element, int columnIndex) {      if (columnIndex == 0) {        return ((Property) element).getName();      } else {        return ((Property) element).getValue();      }    }    public Image getColumnImage(Object element, int columnIndex) {return null;}    public void addListener(ILabelProviderListener listener) {}    public void dispose() {}    public boolean isLabelProperty(Object element, String property) {return false;}    public void removeListener(ILabelProviderListener listener) {}  }  private class CustomPropertyContentProvider implements IStructuredContentProvider {    public Object[] getElements(Object inputElement) {      return properties.getUserDefinedPropertiesAsArray();    }    public void dispose() {}    public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {      if (newInput instanceof ModePropertyConfiguration)        properties = (ModePropertyConfiguration) newInput;      else if (newInput != null)        VJP.logError("Input changed to: " + newInput);      repackColumns();    }  }}