/*******************************************************************************
 * Copyright (c) 2007, 2010 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.g2d.element.handler.impl;

import java.awt.Font;

import org.simantics.g2d.diagram.IDiagram;
import org.simantics.g2d.element.ElementHints;
import org.simantics.g2d.element.IElement;
import org.simantics.g2d.element.handler.LifeCycle;
import org.simantics.g2d.element.handler.TextFont;
import org.simantics.utils.ObjectUtils;

/**
 * 
 * @See {@link TextFont}
 * @author Marko Luukkainen
 */
public class TextFontImpl implements TextFont, LifeCycle {

    private static final long serialVersionUID = -6254972866736454459L;

    public static TextFontImpl DEFAULT = new TextFontImpl();


    public synchronized static TextFontImpl handlerOf(java.awt.Font f)
    {
        return new TextFontImpl(f);
    }

    java.awt.Font defaultFont;

    public TextFontImpl() {
        this.defaultFont = new Font("Arial", Font.PLAIN, 12);
    }
    public TextFontImpl(java.awt.Font defaultFont) {
        this.defaultFont = defaultFont;
    }

    @Override
    public java.awt.Font getFont(IElement e) {		
        return e.getHint(ElementHints.KEY_FONT);
    }

    @Override
    public void setFont(IElement e, java.awt.Font f) {
        e.setHint(ElementHints.KEY_FONT, f);
    }

    @Override
    public void onElementActivated(IDiagram d, IElement e) {
    }
    @Override
    public void onElementCreated(IElement e) {
        if (defaultFont!=null)
            e.setHint(ElementHints.KEY_FONT, defaultFont);
    }
    @Override
    public void onElementDeactivated(IDiagram d, IElement e) {
    }
    @Override
    public void onElementDestroyed(IElement e) {
    }

    @Override
    public int hashCode() {
        return ObjectUtils.hashCode(defaultFont);
    }
    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        TextFontImpl other = (TextFontImpl) obj;
        return ObjectUtils.objectEquals(defaultFont, other.defaultFont);
    }
}