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Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/FontDetails.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/FontDetails.java | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/FontDetails.java b/src/main/java/com/lowagie/text/pdf/FontDetails.java new file mode 100644 index 0000000..6aa72e4 --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/FontDetails.java @@ -0,0 +1,275 @@ +/*
+ * $Id: FontDetails.java,v 1.46 2006/02/23 16:45:49 psoares33 Exp $
+ * $Name: $
+ *
+ * Copyright 2001, 2002 by Paulo Soares.
+ *
+ * The contents of this file are subject to the Mozilla Public License Version 1.1
+ * (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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the License.
+ *
+ * The Original Code is 'iText, a free JAVA-PDF library'.
+ *
+ * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
+ * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
+ * All Rights Reserved.
+ * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
+ * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
+ *
+ * Contributor(s): all the names of the contributors are added in the source code
+ * where applicable.
+ *
+ * Alternatively, the contents of this file may be used under the terms of the
+ * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
+ * provisions of LGPL are applicable instead of those above. If you wish to
+ * allow use of your version of this file only under the terms of the LGPL
+ * License and not to allow others to use your version of this file under
+ * the MPL, indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by the LGPL.
+ * If you do not delete the provisions above, a recipient may use your version
+ * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the MPL as stated above or under the terms of the GNU
+ * Library General Public License as published by the Free Software Foundation;
+ * either version 2 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
+ * details.
+ *
+ * If you didn't download this code from the following link, you should check if
+ * you aren't using an obsolete version:
+ * http://www.lowagie.com/iText/
+ */
+
+package com.lowagie.text.pdf;
+
+import com.lowagie.text.ExceptionConverter;
+import java.util.HashMap;
+import java.io.UnsupportedEncodingException;
+/** Each font in the document will have an instance of this class
+ * where the characters used will be represented.
+ *
+ * @author Paulo Soares (psoares@consiste.pt)
+ */
+class FontDetails {
+
+ /** The indirect reference to this font
+ */
+ PdfIndirectReference indirectReference;
+ /** The font name that appears in the document body stream
+ */
+ PdfName fontName;
+ /** The font
+ */
+ BaseFont baseFont;
+ /** The font if its an instance of <CODE>TrueTypeFontUnicode</CODE>
+ */
+ TrueTypeFontUnicode ttu;
+
+ CJKFont cjkFont;
+ /** The array used with single byte encodings
+ */
+ byte shortTag[];
+ /** The map used with double byte encodings. The key is Integer(glyph) and the
+ * value is int[]{glyph, width, Unicode code}
+ */
+ HashMap longTag;
+
+ IntHashtable cjkTag;
+ /** The font type
+ */
+ int fontType;
+ /** <CODE>true</CODE> if the font is symbolic
+ */
+ boolean symbolic;
+ /** Indicates if all the glyphs and widths for that particular
+ * encoding should be included in the document.
+ */
+ protected boolean subset = true;
+ /** Each font used in a document has an instance of this class.
+ * This class stores the characters used in the document and other
+ * specifics unique to the current working document.
+ * @param fontName the font name
+ * @param indirectReference the indirect reference to the font
+ * @param baseFont the <CODE>BaseFont</CODE>
+ */
+ FontDetails(PdfName fontName, PdfIndirectReference indirectReference, BaseFont baseFont) {
+ this.fontName = fontName;
+ this.indirectReference = indirectReference;
+ this.baseFont = baseFont;
+ fontType = baseFont.getFontType();
+ switch (fontType) {
+ case BaseFont.FONT_TYPE_T1:
+ case BaseFont.FONT_TYPE_TT:
+ shortTag = new byte[256];
+ break;
+ case BaseFont.FONT_TYPE_CJK:
+ cjkTag = new IntHashtable();
+ cjkFont = (CJKFont)baseFont;
+ break;
+ case BaseFont.FONT_TYPE_TTUNI:
+ longTag = new HashMap();
+ ttu = (TrueTypeFontUnicode)baseFont;
+ symbolic = baseFont.isFontSpecific();
+ break;
+ }
+ }
+
+ /** Gets the indirect reference to this font.
+ * @return the indirect reference to this font
+ */
+ PdfIndirectReference getIndirectReference() {
+ return indirectReference;
+ }
+
+ /** Gets the font name as it appears in the document body.
+ * @return the font name
+ */
+ PdfName getFontName() {
+ return fontName;
+ }
+
+ /** Gets the <CODE>BaseFont</CODE> of this font.
+ * @return the <CODE>BaseFont</CODE> of this font
+ */
+ BaseFont getBaseFont() {
+ return baseFont;
+ }
+
+ /** Converts the text into bytes to be placed in the document.
+ * The conversion is done according to the font and the encoding and the characters
+ * used are stored.
+ * @param text the text to convert
+ * @return the conversion
+ */
+ byte[] convertToBytes(String text) {
+ byte b[] = null;
+ switch (fontType) {
+ case BaseFont.FONT_TYPE_T3:
+ return baseFont.convertToBytes(text);
+ case BaseFont.FONT_TYPE_T1:
+ case BaseFont.FONT_TYPE_TT: {
+ b = baseFont.convertToBytes(text);
+ int len = b.length;
+ for (int k = 0; k < len; ++k)
+ shortTag[((int)b[k]) & 0xff] = 1;
+ break;
+ }
+ case BaseFont.FONT_TYPE_CJK: {
+ int len = text.length();
+ for (int k = 0; k < len; ++k)
+ cjkTag.put(cjkFont.getCidCode(text.charAt(k)), 0);
+ b = baseFont.convertToBytes(text);
+ break;
+ }
+ case BaseFont.FONT_TYPE_DOCUMENT: {
+ b = baseFont.convertToBytes(text);
+ break;
+ }
+ case BaseFont.FONT_TYPE_TTUNI: {
+ try {
+ int len = text.length();
+ int metrics[] = null;
+ char glyph[] = new char[len];
+ int i = 0;
+ if (symbolic) {
+ b = PdfEncodings.convertToBytes(text, "symboltt");
+ len = b.length;
+ for (int k = 0; k < len; ++k) {
+ metrics = ttu.getMetricsTT(b[k] & 0xff);
+ if (metrics == null)
+ continue;
+ longTag.put(new Integer(metrics[0]), new int[]{metrics[0], metrics[1], ttu.getUnicodeDifferences(b[k] & 0xff)});
+ glyph[i++] = (char)metrics[0];
+ }
+ }
+ else {
+ for (int k = 0; k < len; ++k) {
+ char c = text.charAt(k);
+ metrics = ttu.getMetricsTT(c);
+ if (metrics == null)
+ continue;
+ int m0 = metrics[0];
+ Integer gl = new Integer(m0);
+ if (!longTag.containsKey(gl))
+ longTag.put(gl, new int[]{m0, metrics[1], c});
+ glyph[i++] = (char)m0;
+ }
+ }
+ String s = new String(glyph, 0, i);
+ b = s.getBytes(CJKFont.CJK_ENCODING);
+ }
+ catch (UnsupportedEncodingException e) {
+ throw new ExceptionConverter(e);
+ }
+ break;
+ }
+ }
+ return b;
+ }
+
+ /** Writes the font definition to the document.
+ * @param writer the <CODE>PdfWriter</CODE> of this document
+ */
+ void writeFont(PdfWriter writer) {
+ try {
+ switch (fontType) {
+ case BaseFont.FONT_TYPE_T3:
+ baseFont.writeFont(writer, indirectReference, null);
+ break;
+ case BaseFont.FONT_TYPE_T1:
+ case BaseFont.FONT_TYPE_TT: {
+ int firstChar;
+ int lastChar;
+ for (firstChar = 0; firstChar < 256; ++firstChar) {
+ if (shortTag[firstChar] != 0)
+ break;
+ }
+ for (lastChar = 255; lastChar >= firstChar; --lastChar) {
+ if (shortTag[lastChar] != 0)
+ break;
+ }
+ if (firstChar > 255) {
+ firstChar = 255;
+ lastChar = 255;
+ }
+ baseFont.writeFont(writer, indirectReference, new Object[]{new Integer(firstChar), new Integer(lastChar), shortTag, new Boolean(subset)});
+ break;
+ }
+ case BaseFont.FONT_TYPE_CJK:
+ baseFont.writeFont(writer, indirectReference, new Object[]{cjkTag});
+ break;
+ case BaseFont.FONT_TYPE_TTUNI:
+ baseFont.writeFont(writer, indirectReference, new Object[]{longTag, new Boolean(subset)});
+ break;
+ }
+ }
+ catch(Exception e) {
+ throw new ExceptionConverter(e);
+ }
+ }
+
+ /** Indicates if all the glyphs and widths for that particular
+ * encoding should be included in the document.
+ * @return <CODE>false</CODE> to include all the glyphs and widths.
+ */
+ public boolean isSubset() {
+ return subset;
+ }
+
+ /** Indicates if all the glyphs and widths for that particular
+ * encoding should be included in the document. Set to <CODE>false</CODE>
+ * to include all.
+ * @param subset new value of property subset
+ */
+ public void setSubset(boolean subset) {
+ this.subset = subset;
+ }
+}
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