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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.
- */
-
- /* $Id: $ */
-
- package org.apache.fop.afp.goca;
-
- import java.awt.Color;
- import java.awt.color.ColorSpace;
- import java.io.IOException;
- import java.io.OutputStream;
-
- /**
- * Sets the current processing color for the following GOCA structured fields
- */
- public class GraphicsSetProcessColor extends AbstractGraphicsDrawingOrder {
-
- private final Color color;
-
- private final float[] colorComponents;
-
- /**
- * Main constructor
- *
- * @param color the color to set
- */
- public GraphicsSetProcessColor(Color color) {
- this.color = color;
- this.colorComponents = color.getColorComponents(null);
- }
-
- /** {@inheritDoc} */
- public int getDataLength() {
- return 12 + colorComponents.length;
- }
-
- /** {@inheritDoc} */
- byte getOrderCode() {
- return (byte)0xB2;
- }
-
- /** {@inheritDoc} */
- public void writeToStream(OutputStream os) throws IOException {
-
- // COLSPCE
- byte colspace;
- int colSpaceType = color.getColorSpace().getType();
- if (colSpaceType == ColorSpace.TYPE_CMYK) {
- colspace = 0x04;
- } else if (colSpaceType == ColorSpace.TYPE_RGB) {
- colspace = 0x01;
- } else {
- log.error("unsupported colorspace " + colSpaceType);
- colspace = 0x01;
- }
-
- // COLSIZE(S)
- byte[] colsizes = new byte[] {0x00, 0x00, 0x00, 0x00};
- for (int i = 0; i < colorComponents.length; i++) {
- colsizes[i] = (byte)8;
- }
-
- int len = getDataLength();
- byte[] data = new byte[len];
- data[0] = getOrderCode(); // GSPCOL order code
- data[1] = (byte)(len - 2); // LEN
- data[2] = 0x00; // reserved; must be zero
- data[3] = colspace; // COLSPCE
- data[4] = 0x00; // reserved; must be zero
- data[5] = 0x00; // reserved; must be zero
- data[6] = 0x00; // reserved; must be zero
- data[7] = 0x00; // reserved; must be zero
- data[8] = colsizes[0]; // COLSIZE(S)
- data[9] = colsizes[1];
- data[10] = colsizes[2];
- data[11] = colsizes[3];
-
- // COLVALUE(S)
- for (int i = 0; i < colorComponents.length; i++) {
- data[i + 12] = (byte)(colorComponents[i] * 255);
- }
-
- os.write(data);
- }
-
- /** {@inheritDoc} */
- public String toString() {
- return "GraphicsSetProcessColor(col=" + color + ")";
- }
- }
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