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/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
==================================================================== */

package org.apache.poi.hwpf.model.types;

import java.util.Objects;

import org.apache.poi.util.BitField;
import org.apache.poi.util.Internal;
import org.apache.poi.util.LittleEndian;

/**
 * The Shd80 structure specifies the colors and pattern that are used for background shading.
 * As an exception to the constraints that are specified by Ico and Ipat,
 * a Shd80 can be set to Shd80Nil and specifies that no shading is applied.
 */
@SuppressWarnings("unused")
@Internal
public abstract class SHD80AbstractType {

    private static final BitField icoFore = new BitField(0x001F);
    private static final BitField icoBack = new BitField(0x03E0);
    private static final BitField ipat = new BitField(0xFC00);

    protected short field_1_value;

    protected SHD80AbstractType() { }

    protected SHD80AbstractType(SHD80AbstractType other) {
        field_1_value = other.field_1_value;
    }

    protected void fillFields( byte[] data, int offset )
    {
        field_1_value                  = LittleEndian.getShort( data, 0x0 + offset );
    }

    public void serialize( byte[] data, int offset )
    {
        LittleEndian.putShort( data, 0x0 + offset, field_1_value );
    }

    public byte[] serialize()
    {
        final byte[] result = new byte[ getSize() ];
        serialize( result, 0 );
        return result;
    }

    /**
     * Size of record
     */
    public static int getSize()
    {
        return 0 + 2;
    }

    @Override
    public boolean equals( Object obj )
    {
        if ( this == obj )
            return true;
        if ( obj == null )
            return false;
        if ( getClass() != obj.getClass() )
            return false;
        SHD80AbstractType other = (SHD80AbstractType) obj;
        if ( field_1_value != other.field_1_value )
            return false;
        return true;
    }

    @Override
    public int hashCode() {
        return Objects.hash(field_1_value);
    }

    public String toString()
    {
        StringBuilder builder = new StringBuilder();
        builder.append("[SHD80]\n");
        builder.append("    .value                = ");
        builder.append(" (").append(getValue()).append(" )\n");
        builder.append("         .icoFore                  = ").append(getIcoFore()).append('\n');
        builder.append("         .icoBack                  = ").append(getIcoBack()).append('\n');
        builder.append("         .ipat                     = ").append(getIpat()).append('\n');

        builder.append("[/SHD80]\n");
        return builder.toString();
    }

    /**
     * Get the value field for the SHD80 record.
     */
    @Internal
    public short getValue()
    {
        return field_1_value;
    }

    /**
     * Set the value field for the SHD80 record.
     */
    @Internal
    public void setValue( short field_1_value )
    {
        this.field_1_value = field_1_value;
    }

    /**
     * Sets the icoFore field value.
     * Foreground color
     */
    @Internal
    public void setIcoFore( byte value )
    {
        field_1_value = (short)icoFore.setValue(field_1_value, value);
    }

    /**
     * Foreground color
     * @return  the icoFore field value.
     */
    @Internal
    public byte getIcoFore()
    {
        return ( byte )icoFore.getValue(field_1_value);
    }

    /**
     * Sets the icoBack field value.
     * Background color
     */
    @Internal
    public void setIcoBack( byte value )
    {
        field_1_value = (short)icoBack.setValue(field_1_value, value);
    }

    /**
     * Background color
     * @return  the icoBack field value.
     */
    @Internal
    public byte getIcoBack()
    {
        return ( byte )icoBack.getValue(field_1_value);
    }

    /**
     * Sets the ipat field value.
     * Shading pattern
     */
    @Internal
    public void setIpat( byte value )
    {
        field_1_value = (short)ipat.setValue(field_1_value, value);
    }

    /**
     * Shading pattern
     * @return  the ipat field value.
     */
    @Internal
    public byte getIpat()
    {
        return ( byte )ipat.getValue(field_1_value);
    }

}