org.apache.fop.pdf.PDFCIDFont Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of org.apache.fop Show documentation
Show all versions of org.apache.fop Show documentation
The core maven build properties
The newest version!
/*
* 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: PDFCIDFont.java 1758773 2016-09-01 13:02:29Z ssteiner $ */
package org.apache.fop.pdf;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Set;
import org.apache.fop.fonts.CIDFontType;
// based on work by Takayuki Takeuchi
/**
* Class representing a "character identifier" font (p 210 and onwards).
*/
public class PDFCIDFont extends PDFObject {
private String basefont;
private CIDFontType cidtype;
private Integer dw;
private PDFWArray w;
private int[] dw2;
private PDFWArray w2;
private PDFCIDSystemInfo systemInfo;
private PDFCIDFontDescriptor descriptor;
private PDFCMap cmap;
/**
* /CIDToGIDMap (only for CIDFontType2, see p 212)
* can be either "Identity" (default) or a PDFStream
*/
private PDFStream cidMap;
/**
* Create the /Font object
* @param basefont Name of the basefont
* @param cidtype CID type
* @param dw default width
* @param w array of character widths
* @param registry name of the issuer
* @param ordering Unique name of the font
* @param supplement Supplement number
* @param descriptor CID font descriptor
*/
public PDFCIDFont(String basefont, CIDFontType cidtype, int dw,
int[] w, String registry, String ordering,
int supplement, PDFCIDFontDescriptor descriptor) {
this(basefont, cidtype, dw,
new PDFWArray(w),
new PDFCIDSystemInfo(registry, ordering, supplement),
descriptor);
}
/**
* Create the /Font object
* @param basefont Name of the basefont
* @param cidtype CID type
* @param dw default width
* @param w array of character widths
* @param systemInfo CID system info
* @param descriptor CID font descriptor
*/
public PDFCIDFont(String basefont, CIDFontType cidtype, int dw,
int[] w, PDFCIDSystemInfo systemInfo,
PDFCIDFontDescriptor descriptor) {
this(basefont, cidtype, dw,
new PDFWArray(w),
systemInfo,
descriptor);
}
/**
* Create the /Font object
* @param basefont Name of the basefont
* @param cidtype CID type
* @param dw default width
* @param w array of character widths
* @param systemInfo CID system info
* @param descriptor CID font descriptor
*/
public PDFCIDFont(String basefont, CIDFontType cidtype, int dw,
PDFWArray w, PDFCIDSystemInfo systemInfo,
PDFCIDFontDescriptor descriptor) {
super();
this.basefont = basefont;
this.cidtype = cidtype;
this.dw = dw;
this.w = w;
this.dw2 = null;
this.w2 = null;
systemInfo.setParent(this);
this.systemInfo = systemInfo;
this.descriptor = descriptor;
this.cidMap = null;
this.cmap = null;
}
/**
* Set the /DW attribute
* @param dw the default width
*/
public void setDW(int dw) {
this.dw = dw;
}
/**
* Set the /W array
* @param w the width array
*/
public void setW(PDFWArray w) {
this.w = w;
}
/**
* Set the (two elements) /DW2 array
* @param dw2 the default metrics for vertical writing
*/
public void setDW2(int[] dw2) {
this.dw2 = dw2;
}
/**
* Set the two elements of the /DW2 array
* @param posY position vector
* @param displacementY displacement vector
*/
public void setDW2(int posY, int displacementY) {
this.dw2 = new int[] {
posY, displacementY
};
}
/**
* Set the CMap used as /ToUnicode cmap
* @param cmap character map
*/
public void setCMAP(PDFCMap cmap) {
this.cmap = cmap;
}
/**
* Set the /W2 array
* @param w2 array of metrics for vertical writing
*/
public void setW2(PDFWArray w2) {
this.w2 = w2;
}
/**
* Set the /CIDToGIDMap (to be used only for CIDFontType2)
* @param map mapping information
*/
public void setCIDMap(PDFStream map) {
this.cidMap = map;
}
/**
* Set the /CIDToGIDMap (to be used only for CIDFontType2) to "Identity"
*/
public void setCIDMapIdentity() {
this.cidMap = null; // not an error here, simply use the default
}
/**
* Returns the PDF name for a certain CID font type.
* @param cidFontType CID font type
* @return corresponding PDF name
*/
protected String getPDFNameForCIDFontType(CIDFontType cidFontType) {
if (cidFontType == CIDFontType.CIDTYPE0) {
return cidFontType.getName();
} else if (cidFontType == CIDFontType.CIDTYPE2) {
return cidFontType.getName();
} else {
throw new IllegalArgumentException("Unsupported CID font type: "
+ cidFontType.getName());
}
}
/**
* {@inheritDoc}
*/
public String toPDFString() {
StringBuffer p = new StringBuffer(128);
p.append("<< /Type /Font");
p.append("\n/BaseFont /");
p.append(this.basefont);
p.append(" \n/CIDToGIDMap ");
if (cidMap != null) {
p.append(cidMap.referencePDF());
} else {
p.append("/Identity");
//This is the default. We still write it because PDF/A requires it.
}
p.append(" \n/Subtype /");
p.append(getPDFNameForCIDFontType(this.cidtype));
p.append("\n");
p.append(systemInfo.toPDFString());
p.append("\n/FontDescriptor ");
p.append(this.descriptor.referencePDF());
if (cmap != null) {
p.append("\n/ToUnicode ");
p.append(cmap.referencePDF());
}
if (dw != null) {
p.append("\n/DW ");
p.append(this.dw);
}
if (w != null) {
p.append("\n/W ");
p.append(w.toPDFString());
}
if (dw2 != null) {
p.append("\n/DW2 ["); // always two values, see p 211
p.append(this.dw2[0]);
p.append(this.dw2[1]);
p.append("]");
}
if (w2 != null) {
p.append("\n/W2 ");
p.append(w2.toPDFString());
}
p.append("\n>>");
return p.toString();
}
/**
* {@inheritDoc}
*/
public byte[] toPDF() {
ByteArrayOutputStream bout = new ByteArrayOutputStream(128);
try {
bout.write(encode("<< /Type /Font\n"));
bout.write(encode("/BaseFont /"));
bout.write(encode(this.basefont));
bout.write(encode(" \n"));
bout.write(encode("/CIDToGIDMap "));
bout.write(encode(cidMap != null ? cidMap.referencePDF() : "/Identity"));
bout.write(encode(" \n"));
bout.write(encode("/Subtype /"));
bout.write(encode(getPDFNameForCIDFontType(this.cidtype)));
bout.write(encode("\n"));
bout.write(encode("/CIDSystemInfo "));
bout.write(systemInfo.toPDF());
bout.write(encode("\n"));
bout.write(encode("/FontDescriptor "));
bout.write(encode(this.descriptor.referencePDF()));
bout.write(encode("\n"));
if (cmap != null) {
bout.write(encode("/ToUnicode "));
bout.write(encode(cmap.referencePDF()));
bout.write(encode("\n"));
}
if (dw != null) {
bout.write(encode("/DW "));
bout.write(encode(this.dw.toString()));
bout.write(encode("\n"));
}
if (w != null) {
bout.write(encode("/W "));
bout.write(encode(w.toPDFString()));
bout.write(encode("\n"));
}
if (dw2 != null) {
bout.write(encode("/DW2 [")); // always two values, see p 211
bout.write(encode(Integer.toString(this.dw2[0])));
bout.write(encode(Integer.toString(this.dw2[1])));
bout.write(encode("]\n"));
}
if (w2 != null) {
bout.write(encode("/W2 "));
bout.write(encode(w2.toPDFString()));
bout.write(encode("\n"));
}
bout.write(encode(">>"));
} catch (IOException ioe) {
log.error("Ignored I/O exception", ioe);
}
return bout.toByteArray();
}
@Override
public void getChildren(Set children) {
super.getChildren(children);
if (cidMap != null) {
children.add(cidMap);
cidMap.getChildren(children);
}
children.add(descriptor);
descriptor.getChildren(children);
if (cmap != null) {
children.add(cmap);
cmap.getChildren(children);
}
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy