/*******************************************************************************
 * Copyright (c) 2012, 2013 Association for Decentralized Information Management in
 * Industry THTH ry.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.g3d.property;

import org.simantics.g3d.math.MathTools;

public class DoubleArrayPropertyManipulator2 implements PropertyManipulator {
	
	ValueProvider provider;
	Object input;
	
	boolean editMode;
	double[] editValue = null;
	
	public DoubleArrayPropertyManipulator2(ValueProvider provider, Object input) {
		this.provider = provider;
		this.input = input;
	}
	
	@Override
    public int getValueCount() {
        return getValue().length+1;
    }
	
	@Override
    public String getDescription(int i) {
        return "Value " + i;
    }
	
	private double[] getValue() {
        try {
            return (double[])provider.getValue(input);
        } catch (Exception e) {
            return new double[0];
        }
    }
	
	@Override
	public String getValue(int i) {
		if (editMode) {
		    if (i < editValue.length)
		        return Double.toString(editValue[i]);
			return "";
		}
		try {
		    double[] val = getValue();
		    if (val == null)
		    	return null;
		    if (val.length == i)
		        return "New";
            if (val.length < i)
                return null;
            return Double.toString(MathTools.round(val[i], 10));
		} catch (Exception e) {
			return null;
		}
	}
	
	@Override
	public String setValue(String value, int i) {
		try {
			double[] val = editValue;
			if (value.length() == 0 && i == val.length -1) {
			    double[] newVal = new double[val.length-1];
                System.arraycopy(val, 0, newVal, 0, val.length-1);
                val = newVal;
			} else if (i < val.length)
			    val[i] = Double.parseDouble(value);
			else if (i == val.length) {
			    double[] newVal = new double[val.length+1];
			    System.arraycopy(val, 0, newVal, 0, val.length);
			    val = newVal;
			}
			provider.setValue(input, val);
		} catch (Exception e) {
			return e.getMessage();
		}
		return null;
	}

	@Override
	public boolean getEditMode() {
		return editMode;
	}
	
	@Override
	public void setEditMode(boolean b) {
		editMode = b;
		if (editMode) {
			try {
				editValue = getValue();
			} catch (Exception e) {
				
			}
		}
		
	}
}