package pt.ist.renderers;

import pt.ist.renderers.components.HtmlComponent;
import pt.ist.renderers.components.HtmlText;
import pt.ist.renderers.layouts.Layout;
import pt.ist.renderers.utils.RenderUtils;

/**
 * The <code>EnumRenderer</code> provides a simple presentation for enumeration
 * values. An enum value will be displayed in one of two forms. First a bundle
 * named <code>ENUMERATION_RESOURCES</code> is used. Using as key the enum name
 * a localized message is searched. If the bundle is not defined or the key does
 * not exist in the bundle then the programmatic name of the enum is presented.
 * 
 * @author cfgi
 */
public class EnumRenderer extends OutputRenderer {

    private String bundle;
    private boolean allowHTML = false;
    private String nullLabel;

    public String getNullLabel() {
	return nullLabel;
    }

    public void setNullLabel(String nullLabel) {
	this.nullLabel = nullLabel;
    }

    public boolean getAllowHTML() {
	return allowHTML;
    }

    public void setAllowHTML(boolean allowHTML) {
	this.allowHTML = allowHTML;
    }

    public String getBundle() {
	return bundle;
    }

    public void setBundle(String bundle) {
	this.bundle = bundle;
    }

    @Override
    protected Layout getLayout(Object object, Class type) {
	return new Layout() {

	    @Override
	    public HtmlComponent createComponent(Object object, Class type) {
		Enum enumerate = (Enum) object;

		if (enumerate == null) {
		    return new HtmlText(getNullLabel());
		}

		String description = RenderUtils.getEnumString(enumerate, getBundle());

		return new HtmlText(description, !getAllowHTML());
	    }

	};
    }
}