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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.pdf;
import org.apache.fop.fonts.FontType;
/**
* A common ancestor for Type1, TrueType, MMType1 and Type3 fonts
* (all except base 14 fonts).
*/
public abstract class PDFFontNonBase14 extends PDFFont {
/**
* first character code in the font
*/
protected int firstChar;
/**
* last character code in the font
*/
protected int lastChar;
/**
* widths of characters from firstChar to lastChar
*/
protected PDFArray widths;
/**
* descriptor of font metrics
*/
protected PDFFontDescriptor descriptor;
/**
* Create the /Font object
*
* @param fontname the internal name for the font
* @param subtype the font's subtype
* @param basefont the base font name
* @param encoding the character encoding schema used by the font
*/
public PDFFontNonBase14(String fontname, FontType subtype,
String basefont,
Object encoding) {
/* generic creation of PDF object */
super(fontname, subtype, basefont, encoding);
this.descriptor = null;
}
/**
* Set the width metrics for the font
*
* @param firstChar the first character code in the font
* @param lastChar the last character code in the font
* @param widths an array of size (lastChar - firstChar +1)
*/
public void setWidthMetrics(int firstChar, int lastChar,
PDFArray widths) {
/* set fields using paramaters */
this.firstChar = firstChar;
this.lastChar = lastChar;
this.widths = widths;
}
/**
* Set the font descriptor (unused for the Type3 fonts)
*
* @param descriptor the descriptor for other font's metrics
*/
public void setDescriptor(PDFFontDescriptor descriptor) {
this.descriptor = descriptor;
}
/** @return the FontDescriptor or null if there is none */
public PDFFontDescriptor getDescriptor() {
return this.descriptor;
}
/** @see org.apache.fop.pdf.PDFFont#validate() */
protected void validate() {
if (getDocumentSafely().getProfile().isFontEmbeddingRequired()) {
if (this.getDescriptor().getFontFile() == null) {
throw new PDFConformanceException("For " + getDocumentSafely().getProfile()
+ ", all fonts have to be embedded!");
}
}
}
/**
* @see org.apache.fop.pdf.PDFFont#fillInPDF(StringBuffer)
*/
protected void fillInPDF(StringBuffer target) {
target.append("\n/FirstChar ");
target.append(firstChar);
target.append("\n/LastChar ");
target.append(lastChar);
target.append("\n/Widths ");
target.append(this.widths.referencePDF());
if (descriptor != null) {
target.append("\n/FontDescriptor ");
target.append(this.descriptor.referencePDF());
}
}
}
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