com.laex.cg2d.model.descs.Vec2PropertySource.java Source code

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Here is the source code for com.laex.cg2d.model.descs.Vec2PropertySource.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.descs;

import org.eclipse.jface.viewers.ICellEditorValidator;
import org.eclipse.ui.views.properties.IPropertyDescriptor;
import org.eclipse.ui.views.properties.IPropertySource;
import org.eclipse.ui.views.properties.PropertyDescriptor;
import org.eclipse.ui.views.properties.TextPropertyDescriptor;

import com.badlogic.gdx.math.Vector2;
import com.laex.cg2d.model.util.FloatUtil;

/**
 * The Class Vec2PropertySource.
 */
public class Vec2PropertySource implements IPropertySource {

    /** The Constant TO_STRING. */
    private static final String TO_STRING = "(%f, %f)";

    /** The Constant X_PROP. */
    public static final String X_PROP = "x";

    /** The Constant Y_PROP. */
    public static final String Y_PROP = "y";

    /** The descriptor. */
    protected static IPropertyDescriptor[] descriptor;

    static {
        PropertyDescriptor xProp = new TextPropertyDescriptor(X_PROP, "X");
        PropertyDescriptor yProp = new TextPropertyDescriptor(Y_PROP, "Y");
        descriptor = new IPropertyDescriptor[] { xProp, yProp };

        for (int i = 0; i < descriptor.length; i++) {
            ((PropertyDescriptor) descriptor[i]).setValidator(new ICellEditorValidator() {
                @Override
                public String isValid(Object value) {
                    return null;
                }
            });
        }
    }

    /** The vec2. */
    protected Vector2 vec2 = null;

    /**
     * Instantiates a new vec2 property source.
     * 
     * @param vec2
     *          the vec2
     */
    public Vec2PropertySource(Vector2 vec2) {
        this.vec2 = vec2;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.views.properties.IPropertySource#getEditableValue()
     */
    @Override
    public Object getEditableValue() {
        return new Vector2(this.vec2.x, this.vec2.y);
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.ui.views.properties.IPropertySource#getPropertyDescriptors()
     */
    @Override
    public IPropertyDescriptor[] getPropertyDescriptors() {
        return descriptor;
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.ui.views.properties.IPropertySource#getPropertyValue(java.lang
     * .Object)
     */
    @Override
    public Object getPropertyValue(Object id) {
        if (isXProp(id)) {
            return Float.toString(vec2.x);
        }
        if (isYProp(id)) {
            return Float.toString(vec2.y);
        }
        return null;
    }

    /**
     * Checks if is y prop.
     * 
     * @param id
     *          the id
     * @return true, if is y prop
     */
    private boolean isYProp(Object id) {
        return id.equals(Y_PROP);
    }

    /**
     * Checks if is x prop.
     * 
     * @param id
     *          the id
     * @return true, if is x prop
     */
    private boolean isXProp(Object id) {
        return id.equals(X_PROP);
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.ui.views.properties.IPropertySource#isPropertySet(java.lang
     * .Object)
     */
    @Override
    public boolean isPropertySet(Object id) {
        return true;
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.ui.views.properties.IPropertySource#resetPropertyValue(java
     * .lang.Object)
     */
    @Override
    public void resetPropertyValue(Object id) {
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.ui.views.properties.IPropertySource#setPropertyValue(java.lang
     * .Object, java.lang.Object)
     */
    @Override
    public void setPropertyValue(Object id, Object value) {
        if (isXProp(id)) {
            vec2.x = FloatUtil.toFloat(value);
        }
        if (isYProp(id)) {
            vec2.y = FloatUtil.toFloat(value);
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return String.format(TO_STRING, vec2.x, vec2.y);
    }

}