| /* |
| * 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.ioca; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| import org.apache.fop.afp.modca.AbstractAFPObject; |
| import org.apache.fop.afp.util.BinaryUtils; |
| |
| /** |
| * The IM Image Input Descriptor structured field contains the |
| * descriptor data for an IM image data object. This data specifies |
| * the resolution, size, and color of the IM image. |
| */ |
| public class ImageInputDescriptor extends AbstractAFPObject { |
| |
| /** the resolution of the raster image (default 240) */ |
| private int resolution = 240; |
| |
| /** {@inheritDoc} */ |
| public void writeToStream(OutputStream os) throws IOException { |
| |
| byte[] data = new byte[45]; |
| copySF(data, Type.DESCRIPTOR, Category.IM_IMAGE); |
| |
| data[1] = 0x00; // length |
| data[2] = 0x2C; |
| |
| // Constant data. |
| data[9] = 0x00; |
| data[10] = 0x00; |
| data[11] = 0x09; |
| data[12] = 0x60; |
| data[13] = 0x09; |
| data[14] = 0x60; |
| data[15] = 0x00; |
| data[16] = 0x00; |
| data[17] = 0x00; |
| data[18] = 0x00; |
| data[19] = 0x00; |
| data[20] = 0x00; |
| |
| // X Base (Fixed x00) |
| data[21] = 0x00; |
| // Y Base (Fixed x00) |
| data[22] = 0x00; |
| |
| byte[] imagepoints = BinaryUtils.convert(resolution * 10, 2); |
| |
| /** |
| * Specifies the number of image points per unit base for the X axis |
| * of the image. This value is ten times the resolution of the image |
| * in the X direction. |
| */ |
| data[23] = imagepoints[0]; |
| data[24] = imagepoints[1]; |
| |
| /** |
| * Specifies the number of image points per unit base for the Y axis |
| * of the image. This value is ten times the resolution of the image |
| * in the Y direction. |
| */ |
| data[25] = imagepoints[0]; |
| data[26] = imagepoints[1]; |
| |
| /** |
| * Specifies the extent in the X direction, in image points, of an |
| * non-celled (simple) image. |
| */ |
| data[27] = 0x00; |
| data[28] = 0x01; |
| |
| /** |
| * Specifies the extent in the Y direction, in image points, of an |
| * non-celled (simple) image. |
| */ |
| data[29] = 0x00; |
| data[30] = 0x01; |
| |
| // Constant Data |
| data[31] = 0x00; |
| data[32] = 0x00; |
| data[33] = 0x00; |
| data[34] = 0x00; |
| data[35] = 0x2D; |
| data[36] = 0x00; |
| |
| // Default size of image cell in X direction |
| data[37] = 0x00; |
| data[38] = 0x01; |
| |
| // Default size of image cell in Y direction |
| data[39] = 0x00; |
| data[40] = 0x01; |
| |
| // Constant Data |
| data[41] = 0x00; |
| data[42] = 0x01; |
| |
| // Image Color |
| data[43] = (byte)0xFF; |
| data[44] = (byte)0xFF; |
| |
| os.write(data); |
| } |
| |
| /** |
| * Sets the resolution information for the raster image |
| * the default value is a resolution of 240 dpi. |
| * |
| * @param resolution The resolution value |
| */ |
| public void setResolution(int resolution) { |
| this.resolution = resolution; |
| } |
| |
| } |