/*
* Freeplane - mind map editor
* Copyright (C) 2008 Joerg Mueller, Daniel Polansky, Christian Foltin, Dimitry Polivaev
*
* This file is modified by Dimitry Polivaev in 2008.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
package org.freeplane.features.nodelocation;
import org.freeplane.core.extension.IExtension;
import org.freeplane.features.map.NodeModel;
/**
* @author Dimitry Polivaev
*/
public class LocationModel implements IExtension {
public final static int HGAP = 20;
public static final LocationModel NULL_LOCATION = new LocationModel() {
@Override
public void setHGap(final int gap) {
if (gap != getHGap()) {
throw new NoSuchMethodError();
}
}
@Override
public void setShiftY(final int shiftY) {
if (shiftY != getShiftY()) {
throw new NoSuchMethodError();
}
}
@Override
public void setVGap(final int gap) {
if (gap != getVGap()) {
throw new NoSuchMethodError();
}
}
};
public final static int VGAP = 3;
public static LocationModel createLocationModel(final NodeModel node) {
LocationModel location = (LocationModel) node.getExtension(LocationModel.class);
if (location == null) {
location = new LocationModel();
node.addExtension(location);
}
return location;
}
public static LocationModel getModel(final NodeModel node) {
final LocationModel location = (LocationModel) node.getExtension(LocationModel.class);
return location != null ? location : LocationModel.NULL_LOCATION;
}
private int hGap = LocationModel.HGAP;
private int shiftY = 0;
private int vGap = LocationModel.VGAP;
public int getHGap() {
return hGap;
}
public int getShiftY() {
return shiftY;
}
public int getVGap() {
return vGap;
}
public void setHGap(final int gap) {
hGap = gap;
}
public void setShiftY(final int shiftY) {
this.shiftY = shiftY;
}
public void setVGap(final int gap) {
vGap = Math.max(gap, 0);
}
}