org.apache.fop.afp.modca.PreprocessPresentationObject Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of fop Show documentation
Show all versions of fop Show documentation
Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF.
/*
* 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: PreprocessPresentationObject.java 815383 2009-09-15 16:15:11Z maxberger $ */
package org.apache.fop.afp.modca;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.fop.afp.modca.triplets.FullyQualifiedNameTriplet;
import org.apache.fop.afp.util.BinaryUtils;
/**
* The Preprocess Presentation Object structured field specifies presentation
* parameters for a data object that has been mapped as a resource.
*/
public class PreprocessPresentationObject extends AbstractTripletStructuredObject {
private static final byte TYPE_OTHER = (byte)0x92;
private static final byte TYPE_OVERLAY = (byte)0xDF;
private static final byte TYPE_IMAGE = (byte)0xFB;
private byte objType = TYPE_OTHER;
private byte objOrent = 0; // object always processed at 0 degree orientation
private int objXOffset = -1;
private int objYOffset = -1;
/**
* Main constructor
*
* @param prePresObj the presentation object to be preprocessed
*/
public PreprocessPresentationObject(AbstractTripletStructuredObject prePresObj) {
if (prePresObj instanceof ImageObject || prePresObj instanceof Overlay) {
if (prePresObj instanceof ImageObject) {
this.objType = TYPE_IMAGE;
} else {
this.objType = TYPE_OVERLAY;
}
setFullyQualifiedName(
FullyQualifiedNameTriplet.TYPE_BEGIN_RESOURCE_OBJECT_REF,
FullyQualifiedNameTriplet.FORMAT_CHARSTR,
prePresObj.getFullyQualifiedName());
} else {
this.objType = TYPE_OTHER;
}
}
public static final byte ORIENTATION_ZERO_DEGREES = 1;
public static final byte ORIENTATION_90_DEGREES = 2;
public static final byte ORIENTATION_180_DEGREES = 4;
public static final byte ORIENTATION_270_DEGREES = 8;
/**
* Sets the object orientations relative to media leading edge
*
* @param orientation the object orientations relative to media leading edge
*/
public void setOrientation(byte orientation) {
objOrent = orientation;
}
/**
* Sets the X axis origin for object content
*
* @param xOffset the X axis origin for object content
*/
public void setXOffset(int xOffset) {
this.objXOffset = xOffset;
}
/**
* Sets the Y axis origin for object content
*
* @param yOffset the Y axis origin for object content
*/
public void setYOffset(int yOffset) {
this.objYOffset = yOffset;
}
/** {@inheritDoc} */
public void writeStart(OutputStream os) throws IOException {
super.writeStart(os);
byte[] data = new byte[9];
copySF(data, Type.PROCESS, Category.DATA_RESOURCE);
byte[] l = BinaryUtils.convert(19 + getTripletDataLength(), 2);
data[1] = l[0]; // Length byte 1
data[2] = l[1]; // Length byte 1
os.write(data);
}
/** {@inheritDoc} */
public void writeContent(OutputStream os) throws IOException {
byte[] data = new byte[12];
byte[] l = BinaryUtils.convert(12 + getTripletDataLength(), 2);
data[0] = l[0]; // RGLength
data[1] = l[1]; // RGLength
data[2] = objType; // ObjType
data[3] = 0x00; // Reserved
data[4] = 0x00; // Reserved
data[5] = objOrent; // ObjOrent
if (objXOffset > 0) {
byte[] xOff = BinaryUtils.convert(objYOffset, 3);
data[6] = xOff[0]; // XocaOset (not specified)
data[7] = xOff[1]; // XocaOset
data[8] = xOff[2]; // XocaOset
} else {
data[6] = (byte)0xFF; // XocaOset (not specified)
data[7] = (byte)0xFF; // XocaOset
data[8] = (byte)0xFF; // XocaOset
}
if (objYOffset > 0) {
byte[] yOff = BinaryUtils.convert(objYOffset, 3);
data[9] = yOff[0]; // YocaOset (not specified)
data[10] = yOff[1]; // YocaOset
data[11] = yOff[2]; // YocaOset
} else {
data[9] = (byte)0xFF; // YocaOset (not specified)
data[10] = (byte)0xFF; // YocaOset
data[11] = (byte)0xFF; // YocaOset
}
os.write(data);
writeTriplets(os);
}
}