| /* |
| * 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 + ")"; |
| } |
| } |