| /* |
| * 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 = 0; |
| |
| /** |
| * Specifies the offset, along the X-axis, of the IM image object area |
| * origin to the origin of the including page |
| */ |
| private int xCoord = 0; |
| |
| /** |
| * Specifies the offset, along the Y-axis, of the IM image object area |
| * origin to the origin of the including page |
| */ |
| private int yCoord = 0; |
| |
| /** 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; |
| } |
| } |