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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This 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 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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 this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.richfaces.renderkit.html.images;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import javax.faces.context.FacesContext;

import org.richfaces.resource.AbstractJava2DUserResource;
import org.richfaces.resource.DynamicUserResource;
import org.richfaces.resource.PostConstructResource;
import org.richfaces.resource.StateHolderResource;
import org.richfaces.skin.Skin;
import org.richfaces.skin.SkinFactory;

/**
 * @author amarkhel
 *
 */
@DynamicUserResource
public class CalendarSeparator extends AbstractJava2DUserResource implements StateHolderResource {
    private static final Dimension DIMENSION = new Dimension(1, 15);
    private Integer headerTextColor;

    public CalendarSeparator() {
        super(DIMENSION);
    }

    @PostConstructResource
    public void initialize() {
        FacesContext context = FacesContext.getCurrentInstance();
        Skin skin = SkinFactory.getInstance(context).getSkin(context);
        Skin defaultSkin = SkinFactory.getInstance(context).getDefaultSkin(context);

        this.headerTextColor = skin.getColorParameter(context, Skin.HEADER_TEXT_COLOR);
        if (this.headerTextColor == null) {
            this.headerTextColor = defaultSkin.getColorParameter(context, Skin.HEADER_TEXT_COLOR);
        }
    }

    public boolean isTransient() {
        return false;
    }

    public void writeState(FacesContext context, DataOutput dataOutput) throws IOException {
        dataOutput.writeInt(this.headerTextColor);
    }

    public void readState(FacesContext context, DataInput dataInput) throws IOException {
        this.headerTextColor = dataInput.readInt();
    }

    public void paint(Graphics2D graphics2d) {
        graphics2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
        graphics2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_NORMALIZE);
        graphics2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
        graphics2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
        graphics2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
        graphics2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
        graphics2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);

        Color color = new Color(this.headerTextColor);
        graphics2d.setColor(color);

        for (int i = 0; i < DIMENSION.getHeight(); i += 2) {
            graphics2d.drawLine(0, i, 0, i);
        }
    }
}