SelectedVarManagerImpl.java
// @formatter:off
/*******************************************************************************
*
* This file is part of JMad.
*
* Copyright (c) 2008-2011, CERN. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
// @formatter:on
package cern.accsoft.steering.jmad.gui.panels.var;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import cern.accsoft.steering.jmad.domain.var.TwissVariable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* the simplest implementation of a class collecting variables.
*
* @author Kajetan Fuchsberger (kajetan.fuchsberger at cern.ch)
*/
public class SelectedVarManagerImpl implements SelectedVarManager {
/** The logger for the class */
private final static Logger logger = LoggerFactory.getLogger(SelectedVarManagerImpl.class);
/** how many variables may be selected */
private VarSelectionMode varSelectionMode = VarSelectionMode.MULTIPLE;
/** the variables */
private List<TwissVariable> variables = new ArrayList<TwissVariable>();
@Override
public void add(TwissVariable twissVariable) {
if (VarSelectionMode.SINGLE == this.varSelectionMode) {
this.clear();
}
this.variables.add(twissVariable);
}
@Override
public void clear() {
this.variables.clear();
}
@Override
public Collection<TwissVariable> getSelectedVariables() {
return this.variables;
}
@Override
public void remove(TwissVariable twissVariable) {
if (VarSelectionMode.SINGLE == this.varSelectionMode) {
return;
}
this.variables.remove(twissVariable);
}
@Override
public void setVarSelectionMode(VarSelectionMode varSelectionMode) {
this.varSelectionMode = varSelectionMode;
}
@Override
public TwissVariable getSelectedVariable() {
if (VarSelectionMode.SINGLE != this.varSelectionMode) {
logger.warn("This only makes sense in single selection mode!");
return null;
}
if (variables.size() == 1) {
return variables.get(0);
} else {
return null;
}
}
@Override
public VarSelectionMode getVarSelectionMode() {
return this.varSelectionMode;
}
}