poi-scratchpad/src/main/java/org/apache/poi/hwmf/record/HwmfColorRef.java

/* ====================================================================
   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.hwmf.record;

import java.awt.Color;
import java.io.IOException;
import java.util.Map;
import java.util.function.Supplier;

import org.apache.poi.common.Duplicatable;
import org.apache.poi.common.usermodel.GenericRecord;
import org.apache.poi.util.GenericRecordJsonWriter;
import org.apache.poi.util.GenericRecordUtil;
import org.apache.poi.util.LittleEndianConsts;
import org.apache.poi.util.LittleEndianInputStream;

/**
 * A 32-bit ColorRef Object that defines the color value.
 * Red (1 byte):  An 8-bit unsigned integer that defines the relative intensity of red.
 * Green (1 byte):  An 8-bit unsigned integer that defines the relative intensity of green.
 * Blue (1 byte):  An 8-bit unsigned integer that defines the relative intensity of blue.
 * Reserved (1 byte):  An 8-bit unsigned integer that MUST be 0x00.
 */
public class HwmfColorRef implements Duplicatable, GenericRecord {
    private Color colorRef = Color.BLACK;

    public HwmfColorRef() {}

    public HwmfColorRef(HwmfColorRef other) {
        colorRef = other.colorRef;
    }

    public HwmfColorRef(Color colorRef) {
        this.colorRef = colorRef;
    }

    public int init(LittleEndianInputStream leis) throws IOException {
        int red = leis.readUByte();
        int green = leis.readUByte();
        int blue = leis.readUByte();
        /*int reserved =*/ leis.readUByte();

        colorRef = new Color(red, green, blue);
        return 4*LittleEndianConsts.BYTE_SIZE;
    }

    public Color getColor() {
        return colorRef;
    }

    public void setColor(Color color) {
        colorRef = color;
    }

    @Override
    public HwmfColorRef copy() {
        return new HwmfColorRef(this);
    }

    @Override
    public String toString() {
        return GenericRecordJsonWriter.marshal(this);
    }

    @Override
    public Map<String, Supplier<?>> getGenericProperties() {
        return GenericRecordUtil.getGenericProperties("color", this::getColor);
    }
}