| /* |
| * 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.modca; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| import org.apache.fop.afp.util.BinaryUtils; |
| |
| /** |
| * The Object Area Position structured field specifies the origin and |
| * orientation of the object area, and the origin and orientation of the |
| * object content within the object area. |
| */ |
| public class ObjectAreaPosition extends AbstractAFPObject { |
| |
| /** |
| * Object areas will be positioned with respect to a point that is define by the |
| * Include Page Segment (IPS) structured field. |
| */ |
| public static final byte REFCSYS_PAGE_SEGMENT_RELATIVE = 0x00; |
| /** Object areas will be positioned with respect to the standard origin */ |
| public static final byte REFCSYS_PAGE_RELATIVE = 0x01; |
| |
| private final int x; |
| private final int y; |
| private final int rotation; |
| private int xOffset; |
| private int yOffset; |
| private byte refCSys = 0x01; //Page or overlay coordinate system |
| |
| /** |
| * Construct an object area position for the specified object y, y position. |
| * |
| * @param x The x coordinate. |
| * @param y The y coordinate. |
| * @param rotation The coordinate system rotation (must be 0, 90, 180, 270). |
| */ |
| public ObjectAreaPosition(int x, int y, int rotation) { |
| this(x, y, rotation, REFCSYS_PAGE_RELATIVE); |
| } |
| |
| /** |
| * Construct an object area position for the specified object y, y position. |
| * |
| * @param x The x coordinate. |
| * @param y The y coordinate. |
| * @param rotation The coordinate system rotation (must be 0, 90, 180, 270). |
| * @param refCSys the reference coordinate system (normally 0x01) |
| */ |
| public ObjectAreaPosition(int x, int y, int rotation, byte refCSys) { |
| this.x = x; |
| this.y = y; |
| this.rotation = rotation; |
| setReferenceCoordinateSystem(refCSys); |
| } |
| |
| /** |
| * Sets the reference coordinate system. |
| * @param refCSys the reference coordinate system (normally 0x01) |
| */ |
| public void setReferenceCoordinateSystem(byte refCSys) { |
| this.refCSys = refCSys; |
| } |
| |
| /** {@inheritDoc} */ |
| public void writeToStream(OutputStream os) throws IOException { |
| byte[] data = new byte[33]; |
| copySF(data, Type.POSITION, Category.OBJECT_AREA); |
| |
| byte[] len = BinaryUtils.convert(32, 2); |
| data[1] = len[0]; // Length |
| data[2] = len[1]; |
| |
| data[9] = 0x01; // OAPosID = 1 |
| data[10] = 0x17; // RGLength = 23 |
| |
| byte[] xcoord = BinaryUtils.convert(x, 3); |
| data[11] = xcoord[0]; // XoaOSet |
| data[12] = xcoord[1]; |
| data[13] = xcoord[2]; |
| |
| byte[] ycoord = BinaryUtils.convert(y, 3); |
| data[14] = ycoord[0]; // YoaOSet |
| data[15] = ycoord[1]; |
| data[16] = ycoord[2]; |
| |
| byte xorient = (byte)(rotation / 2); |
| data[17] = xorient; // XoaOrent |
| |
| byte yorient = (byte)(rotation / 2 + 45); |
| data[19] = yorient; // YoaOrent |
| |
| byte[] xoffset = BinaryUtils.convert(xOffset, 3); |
| data[22] = xoffset[0]; // XocaOSet |
| data[23] = xoffset[1]; |
| data[24] = xoffset[2]; |
| |
| byte[] yoffset = BinaryUtils.convert(yOffset, 3); |
| data[25] = yoffset[0]; // YocaOSet |
| data[26] = yoffset[1]; |
| data[27] = yoffset[2]; |
| |
| data[28] = 0x00; // XocaOrent |
| data[29] = 0x00; |
| |
| data[30] = 0x2D; // YocaOrent |
| data[31] = 0x00; |
| |
| data[32] = this.refCSys; // RefCSys |
| |
| os.write(data); |
| } |
| |
| /** {@inheritDoc} */ |
| public String toString() { |
| return "ObjectAreaPosition{" |
| + "x=" + x |
| + ", y=" + y |
| + ", rotation=" + rotation |
| + ", rotation=" + rotation |
| + ", xOffset=" + xOffset |
| + ", yOffset=" + yOffset; |
| } |
| } |