com.laex.cg2d.model.joints.BEMouseJoint.java Source code

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Here is the source code for com.laex.cg2d.model.joints.BEMouseJoint.java

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/*
 * Copyright (c) 2012, 2013 Hemanta Sapkota.
 * 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:
 * Hemanta Sapkota (laex.pearl@gmail.com)
 */
package com.laex.cg2d.model.joints;

import org.apache.commons.lang.ArrayUtils;
import org.eclipse.ui.views.properties.IPropertyDescriptor;
import org.eclipse.ui.views.properties.PropertyDescriptor;
import org.eclipse.ui.views.properties.TextPropertyDescriptor;

import com.badlogic.gdx.physics.box2d.JointDef.JointType;
import com.badlogic.gdx.physics.box2d.joints.MouseJointDef;
import com.laex.cg2d.model.model.Joint;
import com.laex.cg2d.model.model.Shape;
import com.laex.cg2d.model.util.FloatUtil;

/**
 * The Class BEMouseJoint.
 */
public class BEMouseJoint extends Joint {

    /** The Constant serialVersionUID. */
    private static final long serialVersionUID = -1124997086104314523L;

    /** The Constant MAX_FORCE_PROP. */
    public static final String MAX_FORCE_PROP = "MouseJoint.MaxForce";

    /** The Constant FREQUENCY_PROP. */
    public static final String FREQUENCY_PROP = "MouseJoint.Frequency";

    /** The Constant DAMPING_RATIO_PROP. */
    public static final String DAMPING_RATIO_PROP = "MouseJoint.DampingRatio";

    /** The descriptors. */
    private static IPropertyDescriptor[] descriptors;

    static {
        PropertyDescriptor maxForceProp = new TextPropertyDescriptor(MAX_FORCE_PROP, "Max Force");
        PropertyDescriptor frequencyProp = new TextPropertyDescriptor(FREQUENCY_PROP, "Frequency");
        PropertyDescriptor dampingRatioProp = new TextPropertyDescriptor(DAMPING_RATIO_PROP, "Damping Ratio");

        descriptors = new IPropertyDescriptor[] { maxForceProp, frequencyProp, dampingRatioProp };
    }

    /** The mouse joint def. */
    private MouseJointDef mouseJointDef = new MouseJointDef();

    /**
     * Instantiates a new bE mouse joint.
     * 
     * @param source
     *          the source
     * @param target
     *          the target
     */
    public BEMouseJoint(Shape source, Shape target) {
        super(source, target);
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.laex.cg2d.shared.model.Joint#getEditableValue()
     */
    @Override
    public Object getEditableValue() {
        return mouseJointDef;
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.laex.cg2d.shared.model.Joint#getPropertyDescriptors()
     */
    @Override
    public IPropertyDescriptor[] getPropertyDescriptors() {
        return (IPropertyDescriptor[]) ArrayUtils.addAll(super.getPropertyDescriptors(), descriptors);
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.laex.cg2d.shared.model.Joint#setPropertyValue(java.lang.Object,
     * java.lang.Object)
     */
    @Override
    public void setPropertyValue(Object id, Object value) {
        if (isMaxForceProp(id)) {
            mouseJointDef.maxForce = FloatUtil.toFloat(value);
        } else if (isFrequencyProp(id)) {
            mouseJointDef.frequencyHz = FloatUtil.toFloat(value);
        } else if (isDampingRatioProp(id)) {
            mouseJointDef.dampingRatio = FloatUtil.toFloat(value);
        } else {
            super.setPropertyValue(id, value);
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.laex.cg2d.shared.model.Joint#getPropertyValue(java.lang.Object)
     */
    @Override
    public Object getPropertyValue(Object id) {
        if (isMaxForceProp(id)) {
            return Float.toString(mouseJointDef.maxForce);
        }
        if (isFrequencyProp(id)) {
            return Float.toString(mouseJointDef.frequencyHz);
        }
        if (isDampingRatioProp(id)) {
            return Float.toString(mouseJointDef.dampingRatio);
        }

        return super.getPropertyValue(id);
    }

    /**
     * Checks if is damping ratio prop.
     * 
     * @param id
     *          the id
     * @return true, if is damping ratio prop
     */
    private boolean isDampingRatioProp(Object id) {
        return DAMPING_RATIO_PROP.equals(id);
    }

    /**
     * Checks if is frequency prop.
     * 
     * @param id
     *          the id
     * @return true, if is frequency prop
     */
    private boolean isFrequencyProp(Object id) {
        return FREQUENCY_PROP.equals(id);
    }

    /**
     * Checks if is max force prop.
     * 
     * @param id
     *          the id
     * @return true, if is max force prop
     */
    private boolean isMaxForceProp(Object id) {
        return MAX_FORCE_PROP.equals(id);
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.laex.cg2d.shared.model.Joint#getJointType()
     */
    @Override
    public JointType getJointType() {
        return JointType.MouseJoint;
    }

    /* (non-Javadoc)
     * @see com.laex.cg2d.model.model.Joint#computeLocalAnchors(int)
     */
    @Override
    public void computeLocalAnchors(int ptmRatio) {
        // TODO Auto-generated method stub

    }

}