/*******************************************************************************
* Copyright (c) 2009, 2010 Innovation Gate GmbH.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Innovation Gate GmbH - initial API and implementation
******************************************************************************/
package de.innovationgate.eclipse.utils.ui.model;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jface.viewers.ICellModifier;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.TableItem;
import de.innovationgate.wga.model.BeanListTableModel;
public class BeanListTableModelCellModifier implements ICellModifier, Listener {
public static final String EDIT_MODE_ON_SINGLE_CLICK = "onSingleClick";
public static final String EDIT_MODE_ON_DOUBLE_CLICK = "onDoubleClick";
private TableViewer _viewer;
private BeanListTableModel _model;
private boolean _doubleClick;
private String _defaultEditMode = EDIT_MODE_ON_DOUBLE_CLICK;
private Map<Integer, BeanListTableModelValueMapper> _valueMappers = new HashMap<Integer, BeanListTableModelValueMapper>();
private Map<Integer, String> _editModes = new HashMap<Integer, String>();
public BeanListTableModelCellModifier(TableViewer viewer, BeanListTableModel model) {
_viewer = viewer;
_model = model;
_viewer.setColumnProperties(_model.getColumnIDs());
_viewer.getTable().addListener(SWT.MouseDoubleClick, this);
}
public boolean canModify(Object element, String property) {
int column = Arrays.asList(_model.getColumnIDs()).indexOf(property);
Object value = getValue(element,property);
String mode = _editModes.get(column);
if (mode == null) {
mode = _defaultEditMode;
}
if (mode.equals(EDIT_MODE_ON_SINGLE_CLICK)) {
return _model.isColumnEditable(element, column);
} else {
return _doubleClick && _model.isColumnEditable(element, column);
}
}
public Object getValue(Object element, String property) {
int column = Arrays.asList(_model.getColumnIDs()).indexOf(property);
Object value = _model.getColumnValue(element, column);
// returning 'null' seams to block SWT on MAC-OSX
if (value == null) {
return "";
} else {
return value;
}
}
public void modify(Object element, String property, Object value) {
int column = Arrays.asList(_model.getColumnIDs()).indexOf(property);
if (element instanceof Item) {
element = ((Item) element).getData();
}
BeanListTableModelValueMapper mapper = _valueMappers.get(column);
if (mapper != null) {
value = mapper.map(element, property, value);
}
_model.setColumnValue(element, column, value);
_viewer.refresh(element);
}
public void handleEvent(Event event) {
final Point pt = new Point(event.x, event.y);
final TableItem item = _viewer.getTable().getItem(pt);
if (item != null) {
for (int column = 0; column < _viewer.getTable().getColumnCount(); column++) {
Rectangle rect = item.getBounds(column);
if (rect.contains(pt)) {
_doubleClick = true;
_viewer.editElement(item.getData(), column);
_doubleClick = false;
return;
}
}
}
}
/**
* sets the edit mode for the given column
* @param column
* @param mode {@link EDIT_MODE_ON_DOUBLE_CLICK} or {@link EDIT_MODE_ON_SINGLE_CLICK}
*/
public void setEditMode(int column, String mode) {
_editModes.put(column, mode);
}
public String getDefaultEditMode() {
return _defaultEditMode;
}
public void setDefaultEditMode(String defaultEditMode) {
_defaultEditMode = defaultEditMode;
}
public void setValueMapper(int column, BeanListTableModelValueMapper mapper) {
_valueMappers.put(column, mapper);
}
}