/***************************************************************************
* Copyright (C) 2009 by Tomasz Stelmach *
* http://www.stelmach-online.net/ *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
package org.openstreetmap.josm.plugins.piclayer.actions.transform;
import static org.openstreetmap.josm.tools.I18n.tr;
import java.awt.event.MouseEvent;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.gui.MapFrame;
import org.openstreetmap.josm.plugins.piclayer.actions.GenericPicTransformAction;
import org.openstreetmap.josm.tools.ImageProvider;
/**
* This class handles the input during scaling the picture.
*/
@SuppressWarnings("serial")
public class ScaleYPictureAction extends GenericPicTransformAction {
/**
* Constructor
*/
public ScaleYPictureAction(MapFrame frame) {
super(tr("PicLayer scale Y"), tr("Scaled by Y"), "scale_y", tr("Drag to scale the picture in the Y Axis"), frame, ImageProvider.getCursor("crosshair", null));
}
@Override
protected void doAction(MouseEvent e) {
double centerY = Main.map.mapView.getHeight()/2;
double dy0 = Math.max(Math.abs(prevMousePoint.getY() - centerY), 10);
double dy = Math.abs(e.getY() - centerY);
double scaleY = Math.max(dy / dy0, 0.9);
currentLayer.scalePictureBy(1.0, scaleY);
}
}