com.googlecode.markuputils.CssStyleBuilder.java Source code

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Here is the source code for com.googlecode.markuputils.CssStyleBuilder.java

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/*
 * This file is part of MarkupUtils.
 *
 * MarkupUtils is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MarkupUtils is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with MarkupUtils.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Copyright (c) 2009 Filippo De Luca
 */
package com.googlecode.markuputils;

import java.io.Serializable;

import org.apache.commons.lang.SystemUtils;
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;

/**
 * This class is a builder for CSS style sheet.
 * 
 * @author Filippo De Luca
 * @version $Id$
 */
public class CssStyleBuilder implements Serializable {

    private static final long serialVersionUID = 10L;

    private final StringBuilder buffer = new StringBuilder();

    public CssStyleBuilder openSelector(String selector) {

        CssStyleUtils.ensureSpaceBefore(buffer);
        buffer.append(CssStyleUtils.openSelector(selector));

        return this;
    }

    public CssStyleBuilder appendProperty(String name, Object value) {

        buffer.append(CssStyleUtils.appendProperty(name, value));

        return this;
    }

    public CssStyleBuilder appendStyle(String style) {

        CssStyleUtils.ensureSemicolonBefore(buffer);
        buffer.append(CssStyleUtils.appendStyle(style));

        return this;
    }

    public CssStyleBuilder closeSelector() {

        buffer.append(CssStyleUtils.closeSelector());

        return this;
    }

    /**
     * Appends new line to this builder.
     * 
     * @return a reference to this builder.
     */
    public CssStyleBuilder appendNewLine() {

        buffer.append(SystemUtils.LINE_SEPARATOR);

        return this;
    }

    public String toCssStyle() {
        return buffer.toString();
    }

    // Commons methods ****************************************************

    @Override
    public String toString() {
        return toCssStyle();
    }

    @Override
    public boolean equals(Object obj) {
        EqualsBuilder builder = new EqualsBuilder();

        if (obj instanceof CssStyleBuilder) {
            CssStyleBuilder other = (CssStyleBuilder) obj;
            builder.append(buffer, other.buffer);
        } else {
            builder.appendSuper(false);
        }

        return builder.isEquals();
    }

    @Override
    public int hashCode() {
        HashCodeBuilder builder = new HashCodeBuilder();

        builder.append(getClass()).append(buffer);

        return builder.toHashCode();
    }

}