/* * 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.triplets; import java.io.IOException; import java.io.OutputStream; import org.apache.fop.afp.util.BinaryUtils; /** * The Measurement Units triplet is used to specify the units of measure * for a presentation space */ public class MeasurementUnitsTriplet extends AbstractTriplet { private static final byte TEN_INCHES = 0x00; private static final byte TEN_CM = 0x01; private final int xRes; private final int yRes; /** * Main constructor * * @param xRes units per base on the x-axis * @param yRes units per base on the y-axis */ public MeasurementUnitsTriplet(int xRes, int yRes) { super(MEASUREMENT_UNITS); this.xRes = xRes; this.yRes = yRes; } /** {@inheritDoc} */ public int getDataLength() { return 8; } /** {@inheritDoc} */ public void writeToStream(OutputStream os) throws IOException { byte[] data = getData(); data[2] = TEN_INCHES; // XoaBase data[3] = TEN_INCHES; // YoaBase byte[] xUnits = BinaryUtils.convert(xRes * 10, 2); data[4] = xUnits[0]; // XoaUnits (x units per unit base) data[5] = xUnits[1]; byte[] yUnits = BinaryUtils.convert(yRes * 10, 2); data[6] = yUnits[0]; // YoaUnits (y units per unit base) data[7] = yUnits[1]; os.write(data); } }