/*
* ====================================================================
*
* The ObjectStyle Group Software License, Version 1.0
*
* Copyright (c) 2006 The ObjectStyle Group and individual authors of the
* software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowlegement: "This product includes software
* developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately,
* this acknowlegement may appear in the software itself, if and wherever such
* third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or
* promote products derived from this software without prior written permission.
* For written permission, please contact andrus@objectstyle.org.
*
* 5. Products derived from this software may not be called "ObjectStyle" nor
* may "ObjectStyle" appear in their names without prior written permission of
* the ObjectStyle Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* OBJECTSTYLE GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals on
* behalf of the ObjectStyle Group. For more information on the ObjectStyle
* Group, please see <http://objectstyle.org/>.
*
*/
package org.objectstyle.wolips.eomodeler.utils;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.objectstyle.wolips.eomodeler.core.kvc.CachingKeyPath;
import org.objectstyle.wolips.eomodeler.core.kvc.KeyPath;
public class TablePropertyViewerSorter extends ViewerSorter {
private String[] myColumnProperties;
private int mySortedColumn;
private int myDirection;
private Map myKeys;
public TablePropertyViewerSorter(String tableName) {
this(TableUtils.getColumnsForTableNamed(tableName));
}
public TablePropertyViewerSorter(String[] columnProperties) {
myColumnProperties = columnProperties;
myKeys = new HashMap();
for (int keyNum = 0; keyNum < columnProperties.length; keyNum++) {
KeyPath keyPath = new CachingKeyPath(columnProperties[keyNum]);
myKeys.put(columnProperties[keyNum], keyPath);
}
}
public void sort(TableViewer _viewer, String _property) {
int matchingColumn = TableUtils._getColumnNumber(myColumnProperties, _property);
if (matchingColumn != -1) {
sort(_viewer, matchingColumn);
}
}
public void sort(TableViewer _viewer, int _column) {
Table table = _viewer.getTable();
TableColumn sortColumn = table.getSortColumn();
TableColumn selectedColumn = table.getColumn(_column);
int direction = table.getSortDirection();
if (sortColumn == selectedColumn) {
direction = (direction == SWT.UP) ? SWT.DOWN : SWT.UP;
} else {
table.setSortColumn(selectedColumn);
direction = SWT.UP;
}
table.setSortDirection(direction);
mySortedColumn = _column;
myDirection = direction;
_viewer.refresh();
}
public int compare(Viewer _viewer, Object _o1, Object _o2) {
String property = myColumnProperties[mySortedColumn];
Object o1 = getComparisonValue(_o1, property);
Object o2 = getComparisonValue(_o2, property);
int comparison = 0;
if (o1 == null && o2 == null) {
comparison = 0;
} else if (o1 == null) {
comparison = -1;
} else if (o2 == null) {
comparison = 1;
} else if (o1 instanceof Boolean && o2 instanceof Boolean) {
boolean left = ((Boolean) o1).booleanValue();
boolean right = ((Boolean) o2).booleanValue();
if (left == right) {
comparison = 0;
} else if (left == true) {
comparison = 1;
} else {
comparison = -1;
}
} else if (o1 instanceof Integer && o2 instanceof Integer) {
comparison = ((Integer) o1).compareTo((Integer) o2);
} else if (o1 instanceof String && o2 instanceof String) {
comparison = collator.compare(o1, o2);
}
if (myDirection == SWT.DOWN) {
comparison = -comparison;
}
return comparison;
}
public Object getComparisonValue(Object _obj, String _property) {
Object value = ((KeyPath) myKeys.get(_property)).getValue(_obj);
return value;
}
}