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Diffstat (limited to 'src/java/org/apache/fop/afp/modca/IncludePageOverlay.java')
| -rw-r--r-- | src/java/org/apache/fop/afp/modca/IncludePageOverlay.java | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/java/org/apache/fop/afp/modca/IncludePageOverlay.java b/src/java/org/apache/fop/afp/modca/IncludePageOverlay.java new file mode 100644 index 000000000..44f0edc5b --- /dev/null +++ b/src/java/org/apache/fop/afp/modca/IncludePageOverlay.java @@ -0,0 +1,129 @@ +/* + * 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 Include Page Overlay structured field references an overlay resource + * definition that is to be positioned on the page. A page overlay can be + * referenced at any time during the page state, but not during an object state. + * The overlay contains its own active environment group definition. + * + * Note: There is no need for the triplets, so I have ignored them. + * + * A real example of where this will be used is for static overlays, such as an + * address on the page. + * + */ +public class IncludePageOverlay extends AbstractNamedAFPObject { + + /** + * The x coordinate + */ + private int x = 0; + + /** + * The y coordinate + */ + private int y = 0; + + /** + * The orientation + */ + private int orientation = 0; + + /** + * Constructor for the Include Page Overlay + * + * @param overlayName Name of the page segment + * @param x The x position + * @param y The y position + * @param orientation The orientation + */ + public IncludePageOverlay(String overlayName, int x, int y, int orientation) { + super(overlayName); + + this.x = x; + this.y = y; + setOrientation(orientation); + } + + /** + * Sets the orientation to use for the overlay. + * + * @param orientation + * The orientation (0,90, 180, 270) + */ + 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"); + } + } + + /** {@inheritDoc} */ + public void writeToStream(OutputStream os) throws IOException { + byte[] data = new byte[25]; //(9 +16) + copySF(data, Type.INCLUDE, Category.PAGE_OVERLAY); + + // Set the total record length + byte[] len = BinaryUtils.convert(24, 2); //Ignore first byte + data[1] = len[0]; + data[2] = len[1]; + + byte[] xPos = BinaryUtils.convert(x, 3); + data[17] = xPos[0]; // x coordinate + data[18] = xPos[1]; + data[19] = xPos[2]; + + byte[] yPos = BinaryUtils.convert(y, 3); + data[20] = yPos[0]; // y coordinate + data[21] = yPos[1]; + data[22] = yPos[2]; + + switch (orientation) { + case 90: + data[23] = 0x2D; + data[24] = 0x00; + break; + case 180: + data[23] = 0x5A; + data[24] = 0x00; + break; + case 270: + data[23] = (byte) 0x87; + data[24] = 0x00; + break; + default: + data[23] = 0x00; + data[24] = 0x00; + break; + } + os.write(data); + } +}
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