/**
* 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 java.awt.Component;
import java.awt.GridLayout;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.Collections;
import java.util.Vector;
import javax.swing.AbstractCellEditor;
import javax.swing.JComboBox;
import javax.swing.JPanel;
import javax.swing.JTable;
import com.rapidminer.Process;
import com.rapidminer.operator.Operator;
import com.rapidminer.operator.Value;
import com.rapidminer.parameter.ParameterType;
import com.rapidminer.parameter.ParameterTypeValue;
import com.rapidminer.parameter.ParameterTypeValue.OperatorValueSelection;
/**
* Parameter editor for {@link ParameterTypeValue}, i.e. the parameter type for values which are
* provided by operators.
*
* @see com.rapidminer.gui.properties.celleditors.value.DefaultPropertyValueCellEditor
* @author Ingo Mierswa, Simon Fischer
*/
public class OperatorValueValueCellEditor extends AbstractCellEditor implements PropertyValueCellEditor {
private static final long serialVersionUID = 2332956173516489926L;
private JPanel panel = new JPanel();
private JComboBox<String> operatorCombo;
private JComboBox<String> typeCombo = new JComboBox<>(new String[] { "value", "parameter" });
private JComboBox<String> valueCombo = new JComboBox<>();
private transient Process process;
private ParameterTypeValue type;
public OperatorValueValueCellEditor(ParameterTypeValue type) {
this.type = type;
}
@Override
public void setOperator(Operator operator) {
this.process = operator.getProcess();
operatorCombo = createOperatorCombo();
typeCombo.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
fillValueCombo();
fireEditingStopped();
}
});
valueCombo.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
fireEditingStopped();
}
});
fillValueCombo();
panel.setLayout(new GridLayout(1, 3));
panel.add(operatorCombo);
panel.add(typeCombo);
panel.add(valueCombo);
type.setDefaultValue(getCellEditorValue());
}
private JComboBox<String> createOperatorCombo() {
Vector<String> allOps = new Vector<String>(process.getAllOperatorNames());
Collections.sort(allOps);
JComboBox<String> combo = new JComboBox<>(allOps);
combo.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
fillValueCombo();
fireEditingStopped();
}
});
return combo;
}
private void fillValueCombo() {
valueCombo.removeAllItems();
Operator operator = process.getOperator((String) operatorCombo.getSelectedItem());
if (operator != null) {
switch (typeCombo.getSelectedIndex()) {
case 0:
for (Value value : operator.getValues()) {
valueCombo.addItem(value.getKey());
}
if (valueCombo.getItemCount() == 0) {
valueCombo.addItem("no values");
}
break;
case 1:
for (ParameterType type : operator.getParameters().getParameterTypes()) {
valueCombo.addItem(type.getKey());
}
if (valueCombo.getItemCount() == 0) {
valueCombo.addItem("no params");
}
break;
}
}
valueCombo.setSelectedIndex(-1);
}
@Override
public Object getCellEditorValue() {
OperatorValueSelection selection = new OperatorValueSelection((String) operatorCombo.getSelectedItem(),
(typeCombo.getSelectedIndex() == 0), (String) valueCombo.getSelectedItem());
return ParameterTypeValue.transformOperatorValueSelection2String(selection);
}
public void setValue(String valueName) {
if (valueName != null) {
OperatorValueSelection selection = ParameterTypeValue.transformString2OperatorValueSelection(valueName);
if (selection != null) {
operatorCombo.setSelectedItem(selection.getOperator());
typeCombo.setSelectedIndex(selection.isValue() ? 0 : 1);
valueCombo.setSelectedItem(selection.isValue() ? selection.getValueName() : selection.getParameterName());
} else {
operatorCombo.setSelectedIndex(0);
typeCombo.setSelectedIndex(0);
valueCombo.setSelectedIndex(-1);
}
} else {
operatorCombo.setSelectedIndex(0);
typeCombo.setSelectedIndex(0);
valueCombo.setSelectedIndex(-1);
}
fireEditingStopped();
}
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int col) {
setValue((String) value);
return panel;
}
@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 boolean rendersLabel() {
return false;
}
}