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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.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;
- }
-
- }
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