/**
* Copyright (C) 2001-2017 by RapidMiner and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapidminer.com
*
* This program is free software: you can redistribute it and/or modify it under the terms of the
* GNU Affero General Public License as published by the Free Software Foundation, either version 3
* 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
* Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along with this program.
* If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.gui.properties.celleditors.value;
import com.rapidminer.operator.Operator;
import com.rapidminer.operator.OperatorChain;
import com.rapidminer.parameter.ParameterTypeInnerOperator;
import java.awt.Component;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Vector;
import javax.swing.AbstractCellEditor;
import javax.swing.JComboBox;
import javax.swing.JTable;
/**
* Parameter editor for {@link com.rapidminer.parameter.ParameterTypeInnerOperator}.
*
* @author Ingo Mierswa
*/
public class InnerOperatorValueCellEditor extends AbstractCellEditor implements PropertyValueCellEditor {// ,
// Observer<Operator>
// {
private static final long serialVersionUID = -2559892872774108384L;
private JComboBox<String> operatorCombo = new JComboBox<>();
private transient OperatorChain parentOperator;
public InnerOperatorValueCellEditor(ParameterTypeInnerOperator type) {}
@Override
public void setOperator(Operator parentOperator) {
this.parentOperator = (OperatorChain) parentOperator;
// We cannot add observers here. First, it hangs the GUI and second it is not guaranteed
// that it is removed again later. To be more precise, it is guaranteed that it is not
// removed.
// this.parentOperator.addObserver(this, true);
this.operatorCombo = new JComboBox<>();
updateOperatorCombo();
}
private void updateOperatorCombo() {
Object selectedItem = this.operatorCombo.getSelectedItem();
this.operatorCombo.removeAllItems();
List<Operator> allInnerOps = parentOperator.getAllInnerOperators();
Vector<String> allOpNames = new Vector<String>();
Iterator<Operator> i = allInnerOps.iterator();
while (i.hasNext()) {
allOpNames.add(i.next().getName());
}
Collections.sort(allOpNames);
for (String opName : allOpNames) {
this.operatorCombo.addItem(opName);
}
this.operatorCombo.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
fireEditingStopped();
}
});
if (this.operatorCombo.getItemCount() == 0) {
this.operatorCombo.addItem("add inner operators");
}
this.operatorCombo.setSelectedItem(selectedItem);
}
@Override
public Object getCellEditorValue() {
return operatorCombo.getSelectedItem();
}
public void setValue(String valueName) {
if (valueName != null) {
operatorCombo.setSelectedItem(valueName);
} else {
operatorCombo.setSelectedIndex(0);
}
}
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int col) {
setValue((String) value);
return operatorCombo;
}
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,
int row, int column) {
return getTableCellEditorComponent(table, value, isSelected, row, column);
}
@Override
public boolean useEditorAsRenderer() {
return true;
}
// @Override
// public void update(Observable<Operator> observable, Operator arg) {
// updateOperatorCombo();
// }
@Override
public boolean rendersLabel() {
return false;
}
}