org.ttzero.excel.entity.style.PaletteParser Maven / Gradle / Ivy
/*
* Copyright (c) 2019-2020, [email protected] All Rights Reserved.
*
* Licensed 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.ttzero.excel.entity.style;
import org.ttzero.excel.entity.e3.Block;
import org.ttzero.excel.entity.e3.ParserIdentifier;
import java.awt.Color;
/**
* 5.74 PALETTE
*
* This record contains the definition of all user-defined
* colours available for cell and object formatting. This
* record is optional. If it is omitted, a built-in
* default colour table will be used (see ➜5.74.3).
*
* @author guanquan.wang at 2019-03-02 10:13
*/
public class PaletteParser {
public static Color[] get(Block block) {
block.ready();
// Number of following colours (nm). Contains 16 in BIFF3-BIFF4 and 56 in BIFF5-BIFF8.
short nm = block.nextShort();
if (nm == 0) {
return new Color[0];
}
// List of nm RGB colours (➜2.5.4)
Color[] colors = new Color[nm];
for (int i = 0; i < nm; i++) {
colors[i] = new Color(block.nextInt());
}
block.commit();
return colors;
}
public static short getId() {
return ParserIdentifier.PALETTE;
}
}