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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.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 {
private final int x;
private final int y;
private final int rotation;
private int xOffset;
private int yOffset;
/**
* 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 = x;
this.y = y;
this.rotation = rotation;
}
/** {@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] = 0x01; // RefCSys
os.write(data);
}
/** {@inheritDoc} */
public String toString() {
return "ObjectAreaPosition{"
+ "x=" + x
+ ", y=" + y
+ ", rotation=" + rotation
+ ", rotation=" + rotation
+ ", xOffset=" + xOffset
+ ", yOffset=" + yOffset;
}
}
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