ecommons.waltable/org.eclipse.statet.ecommons.waltable.core/src/org/eclipse/statet/ecommons/waltable/grid/cell/AlternatingRowConfigLabelAccumulator.java

/*=============================================================================#
 # Copyright (c) 2012, 2021 Original NatTable authors and others.
 # 
 # This program and the accompanying materials are made available under the
 # terms of the Eclipse Public License 2.0 which is available at
 # https://www.eclipse.org/legal/epl-2.0.
 # 
 # SPDX-License-Identifier: EPL-2.0
 # 
 # Contributors:
 #     Original NatTable authors and others - initial API and implementation
 #=============================================================================*/

package org.eclipse.statet.ecommons.waltable.grid.cell;

import org.eclipse.statet.ecommons.waltable.grid.GridRegion;
import org.eclipse.statet.ecommons.waltable.grid.layer.config.DefaultRowStyleConfiguration;
import org.eclipse.statet.ecommons.waltable.layer.LabelStack;
import org.eclipse.statet.ecommons.waltable.layer.cell.IConfigLabelAccumulator;


/**
 * Applies 'odd'/'even' labels to all the rows. These labels are
 * the used to apply color to alternate rows.
 * 
 * @see DefaultRowStyleConfiguration
 */
public class AlternatingRowConfigLabelAccumulator implements IConfigLabelAccumulator {

	public static final String ODD_ROW_CONFIG_TYPE= "ODD_" + GridRegion.BODY; //$NON-NLS-1$

	public static final String EVEN_ROW_CONFIG_TYPE= "EVEN_" + GridRegion.BODY; //$NON-NLS-1$

	@Override
	public void accumulateConfigLabels(final LabelStack configLabels, final long columnPosition, final long rowPosition) {
		configLabels.addLabel((rowPosition % 2 == 0 ? EVEN_ROW_CONFIG_TYPE : ODD_ROW_CONFIG_TYPE));
	}
}