/*******************************************************************************
* Copyright (c) 2013, 2016 Dirk Fauth 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:
* Dirk Fauth <dirk.fauth@googlemail.com> - initial API and implementation
*******************************************************************************/
package org.eclipse.nebula.widgets.nattable.freeze.command;
import org.eclipse.nebula.widgets.nattable.coordinate.PositionCoordinate;
import org.eclipse.nebula.widgets.nattable.freeze.FreezeLayer;
import org.eclipse.nebula.widgets.nattable.viewport.ViewportLayer;
public class FreezeRowStrategy implements IFreezeCoordinatesProvider {
private final FreezeLayer freezeLayer;
private final ViewportLayer viewportLayer;
private final int rowPosition;
public FreezeRowStrategy(FreezeLayer freezeLayer, int rowPosition) {
this(freezeLayer, null, rowPosition);
}
/**
* @since 1.5
*/
public FreezeRowStrategy(FreezeLayer freezeLayer, ViewportLayer viewportLayer, int rowPosition) {
this.freezeLayer = freezeLayer;
this.viewportLayer = viewportLayer;
this.rowPosition = rowPosition;
}
@Override
public PositionCoordinate getTopLeftPosition() {
int rowPosition = 0;
if (this.viewportLayer != null) {
rowPosition = this.viewportLayer.getScrollableLayer().getRowPositionByY(this.viewportLayer.getOrigin().getY());
if (rowPosition > 0 && rowPosition >= this.rowPosition) {
rowPosition = this.rowPosition;
}
}
return new PositionCoordinate(this.freezeLayer, -1, rowPosition);
}
@Override
public PositionCoordinate getBottomRightPosition() {
return new PositionCoordinate(this.freezeLayer, -1, this.rowPosition);
}
}