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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 Output Control structured field specifies the position and
- * orientation of the IM image object area and the mapping of the image points
- * to presentation device pels.
- *
- */
- public class ImageOutputControl extends AbstractAFPObject {
-
- /** the orientation of the image */
- private int orientation;
-
- /**
- * Specifies the offset, along the X-axis, of the IM image object area
- * origin to the origin of the including page
- */
- private int xCoord;
-
- /**
- * Specifies the offset, along the Y-axis, of the IM image object area
- * origin to the origin of the including page
- */
- private int yCoord;
-
- /** map an image point to a single presentation device */
- private boolean singlePoint = true;
-
- /**
- * Constructor for the ImageOutputControl The x parameter specifies the
- * offset, along the X-axis, of the IM image object area origin to the
- * origin of the including page and the y parameter specifies the offset
- * along the Y-axis. The offset is specified in image points and is resolved
- * using the units of measure specified for the image in the IID structured
- * field.
- *
- * @param x
- * The X-axis offset.
- * @param y
- * The Y-axis offset.
- */
- public ImageOutputControl(int x, int y) {
- xCoord = x;
- yCoord = y;
- }
-
- /** {@inheritDoc} */
- public void writeToStream(OutputStream os) throws IOException {
-
- byte[] data = new byte[33];
-
- data[0] = 0x5A;
- data[1] = 0x00;
- data[2] = 0x20;
- data[3] = (byte) 0xD3;
- data[4] = (byte) 0xA7;
- data[5] = (byte) 0x7B;
- data[6] = 0x00;
- data[7] = 0x00;
- data[8] = 0x00;
-
- // XoaOset
- byte[] x1 = BinaryUtils.convert(xCoord, 3);
- data[9] = x1[0];
- data[10] = x1[1];
- data[11] = x1[2];
-
- // YoaOset
- byte[] x2 = BinaryUtils.convert(yCoord, 3);
- data[12] = x2[0];
- data[13] = x2[1];
- data[14] = x2[2];
-
- switch (orientation) {
- case 0:
- // 0 and 90 degrees respectively
- data[15] = 0x00;
- data[16] = 0x00;
- data[17] = 0x2D;
- data[18] = 0x00;
- break;
- case 90:
- // 90 and 180 degrees respectively
- data[15] = 0x2D;
- data[16] = 0x00;
- data[17] = 0x5A;
- data[18] = 0x00;
- break;
- case 180:
- // 180 and 270 degrees respectively
- data[15] = 0x5A;
- data[16] = 0x00;
- data[17] = (byte) 0x87;
- data[18] = 0x00;
- break;
- case 270:
- // 270 and 0 degrees respectively
- data[15] = (byte) 0x87;
- data[16] = 0x00;
- data[17] = 0x00;
- data[18] = 0x00;
- break;
- default:
- // 0 and 90 degrees respectively
- data[15] = 0x00;
- data[16] = 0x00;
- data[17] = 0x2D;
- data[18] = 0x00;
- break;
-
- }
-
- // Constant Data
- data[19] = 0x00;
- data[20] = 0x00;
- data[21] = 0x00;
- data[22] = 0x00;
- data[23] = 0x00;
- data[24] = 0x00;
- data[25] = 0x00;
- data[26] = 0x00;
-
- if (singlePoint) {
- data[27] = 0x03;
- data[28] = (byte) 0xE8;
- data[29] = 0x03;
- data[30] = (byte) 0xE8;
- } else {
- data[27] = 0x07;
- data[28] = (byte) 0xD0;
- data[29] = 0x07;
- data[30] = (byte) 0xD0;
- }
-
- // Constant Data
- data[31] = (byte) 0xFF;
- data[32] = (byte) 0xFF;
-
- os.write(data);
- }
-
- /**
- * Sets the orientation which specifies the amount of clockwise rotation of
- * the IM image object area.
- *
- * @param orientation
- * The orientation to set.
- */
- public void setOrientation(int orientation) {
-
- if (orientation == 0 || orientation == 90 || orientation == 180
- || orientation == 270) {
- this.orientation = orientation;
- } else {
- throw new IllegalArgumentException(
- "The orientation must be one of the values 0, 90, 180, 270");
- }
- }
-
- /**
- * Sets the singlepoint, if true map an image point to a single presentation
- * device pel in the IM image object area. If false map an image point to
- * two presentation device pels in the IM image object area (double-dot)
- *
- * @param singlepoint
- * Use the singlepoint basis when true.
- */
- public void setSinglepoint(boolean singlepoint) {
- singlePoint = singlepoint;
- }
- }
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