/*******************************************************************************

 * Copyright (c) 2009 BestSolution.at and others.

 * 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:

 *    Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation

 *******************************************************************************/

package org.eclipse.nebula.jface;

import org.eclipse.jface.layout.AbstractColumnLayout;

import org.eclipse.jface.viewers.ColumnLayoutData;

import org.eclipse.jface.viewers.ColumnPixelData;

import org.eclipse.nebula.widgets.grid.Grid;

import org.eclipse.nebula.widgets.grid.GridColumn;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Scrollable;

import org.eclipse.swt.widgets.Widget;

/**

 * A dynamic column layout for nebula grid

 */

public class GridColumnLayout extends AbstractColumnLayout {

	/**

	 * {@inheritDoc}

	 * 

	 * @since 0.9

	 */

	protected int getColumnCount(Scrollable tableTree) {

		return ((Grid) tableTree).getColumnCount();

	}

	/**

	 * {@inheritDoc}

	 * 

	 * @since 0.9

	 */

	protected void setColumnWidths(Scrollable tableTree, int[] widths) {

		GridColumn[] columns = ((Grid) tableTree).getColumns();

		for (int i = 0; i < widths.length; i++) {

			columns[i].setWidth(widths[i]);

		}

	}

	/**

	 * {@inheritDoc}

	 * 

	 * @since 0.9

	 */

	protected ColumnLayoutData getLayoutData(Scrollable tableTree,

			int columnIndex) {

		GridColumn column = ((Grid) tableTree).getColumn(columnIndex);

		return (ColumnLayoutData) column.getData(LAYOUT_DATA);

	}

	Composite getComposite(Widget column) {

		return ((GridColumn) column).getParent().getParent();

	}

	/**

	 * {@inheritDoc}

	 * 

	 * @since 0.9

	 */

	protected void updateColumnData(Widget column) {

		GridColumn tColumn = (GridColumn) column;

		Grid t = tColumn.getParent();

		tColumn.setData(LAYOUT_DATA, new ColumnPixelData(tColumn.getWidth()));

		layout(t.getParent(), true);

	}

}