MatrixPropertyTable.java

/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2008 by Rapid-I and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapid-i.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;

import java.awt.Color;
import java.util.Enumeration;
import java.util.Vector;

import javax.swing.table.TableColumn;

import com.rapidminer.gui.tools.CellColorProvider;
import com.rapidminer.gui.tools.ExtendedJTable;
import com.rapidminer.gui.tools.SwingTools;
import com.rapidminer.operator.Operator;


/**
 * For {@link com.rapidminer.parameter.ParameterTypeMatrix} 
 * 
 * @author Helge Homburg
 * @version $Id: MatrixPropertyTable.java,v 1.6 2008/08/25 08:10:41 ingomierswa Exp $
 */
public class MatrixPropertyTable extends ExtendedJTable {

	private static final long serialVersionUID = 2348648114479673318L;

	private transient Operator operator;
	
	private MatrixPropertyTableModel model;

	private String rowBaseName;
	
	
	public MatrixPropertyTable(String baseName, String rowBaseName, String columnBaseName, double[][] parameterMatrix, Operator operator) {
		super(null, false, false);	
		this.rowBaseName = rowBaseName;
		this.operator = operator;
		
		setCellColorProvider(new CellColorProvider() {
		    public Color getCellColor(int row, int column) {
		        if (column == 0) {
		        	return SwingTools.LIGHTEST_BLUE;
		        } else {        	
		        	return Color.WHITE;
		        }            
		    }
		});
		// build the table model
		if (parameterMatrix != null) {							
			int numberOfRows = parameterMatrix[0].length;
			int numberOfColumns = parameterMatrix.length;
			
			model = new MatrixPropertyTableModel(baseName, columnBaseName, numberOfRows, numberOfColumns + 1);
			setModel(model);
			for (int i = 0; i < numberOfColumns; i++) {
				getModel().setValueAt(rowBaseName + " " + (i + 1), i, 0);
				for (int j = 0; j < numberOfRows; j++) {					
					getModel().setValueAt(Double.toString(parameterMatrix[i][j]),i,j + 1);
				}
			}
		} else {
			model = new MatrixPropertyTableModel(baseName, columnBaseName, 0, 0);
			setModel(model);
		}		
	}

	public void addRow() {
		if (model.getColumnCount() == 0) {
			addColumn();
		}
		model.addRow(new Object[model.getColumnCount()]);
		int currentRow = model.getRowCount() - 1;
		model.setValueAt(rowBaseName + " " + (currentRow + 1), currentRow, 0);
	}
	
	public void addColumn() {
		model.addColumn(model.getColumnCount(), new Object[model.getRowCount()]);
	}

	public void removeSelectedRow() {
		int[] selectedRows = getSelectedRows();
		if (selectedRows.length < model.getRowCount()) {	
			for (int i = selectedRows.length - 1; i >= 0; i--) {
				model.removeRow(selectedRows[i]);
			}
			model.fireTableStructureChanged();
		}
	}
	
	public void removeSelectedColumn() {
		int[] selectedColumns = getSelectedColumns();
		if (selectedColumns.length < model.getColumnCount() - 1) {			
			for (int i = selectedColumns.length - 1; i >= 0; i--) {
				removeColumn(selectedColumns[i]);			
			}
			model.fireTableStructureChanged();	
		}
	}
	
	public void removeSelectedRowAndColumn() {
		if (model.getRowCount() > 1) {
			model.removeRow(model.getRowCount() - 1);		
			removeColumn(model.getColumnCount() - 1);		
			model.fireTableStructureChanged();
		}
	}
	
	public void fillNewRowAndColumn() {
		int currentRow = model.getRowCount() - 1;
		int currentColumn = model.getColumnCount() - 1;
		model.setValueAt("1.0", 0, currentColumn);
		for (int i = 1; i < currentColumn; i++) {
			model.setValueAt("1.0", currentRow, i);
			model.setValueAt("1.0", i, currentColumn);
		}
		model.setValueAt("0.0", currentRow, currentColumn);
	}
	
	public double[][] getParameterMatrix() {		
		double[][] matrix = new double[getModel().getRowCount()][getModel().getColumnCount() - 1];
		for (int i = 0; i < getModel().getRowCount(); i++) {
			for (int j = 0; j < getModel().getColumnCount() - 1; j++) {				
				matrix[i][j] = Double.parseDouble((String)getModel().getValueAt(i,j + 1));
			}
		}		
		return matrix;
	}

	public Operator getOperator(int row) {
		return operator;
	}
		
	public void removeColumn(int index) {
        TableColumn column = getColumnModel().getColumn(index);
        int modelIndex = column.getModelIndex();
        Vector modelData = model.getDataVector();
        Vector columnIdentifiers = model.getColumnIdentifiers();
    
        // remove the column from the table
        removeColumn(column);
    
        // remove the column header from the table model
        columnIdentifiers.removeElementAt(modelIndex);
        
    
        // remove the column data
        for (int i=0; i < modelData.size(); i++) {
            Vector row = (Vector)modelData.get(i);
            row.removeElementAt(modelIndex);
        }
        model.setDataVector(modelData, columnIdentifiers);
    
        // correct the model indices in the TableColumn objects        
        Enumeration columns = getColumnModel().getColumns();
        while (columns.hasMoreElements()) {
            TableColumn currentColumn = (TableColumn)columns.nextElement();
            if (currentColumn.getModelIndex() >= modelIndex) {            	
            	currentColumn.setModelIndex(currentColumn.getModelIndex() - 1);            	
            }
        }        
    }
    
    public boolean isCellEditable(int row, int col) { 
		if (col == 0) {
			return false;
		} else {
			return true;
		}
	}
}