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/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2017 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* HTMLFontHandler.java
* ---------------
*/
package org.jpedal.render.output;
import org.jpedal.fonts.PdfFont;
import org.jpedal.fonts.StandardFonts;
import org.jpedal.io.PdfObjectReader;
import org.jpedal.objects.raw.PdfDictionary;
import org.jpedal.objects.raw.PdfObject;
import org.jpedal.render.DynamicVectorRenderer;
import org.jpedal.utils.LogWriter;
/**
* @author markee
*/
public class HTMLFontHandler {
public HTMLFontHandler() {
}
public static void processFont(final PdfFont restoredFont, final DynamicVectorRenderer current, final PdfObject newFont, final PdfObjectReader currentPdfFile) {
final String fontName = restoredFont.getFontName();
final int mode = current.getValue(DynamicVectorRenderer.FontMode);
// flag to user that this font is not embedded so will not appear in modes like image_shapetext_selectable)
if (!restoredFont.isFontEmbedded) {
LogWriter.writeLog("[HTML/SVG] Font " + fontName + " is not embedded and will be replaced with Arial");
}
if ((mode == org.jpedal.render.output.GenericFontMapper.EMBED_ALL
|| (mode == org.jpedal.render.output.GenericFontMapper.EMBED_ALL_EXCEPT_BASE_FAMILIES
&& !StandardFonts.isStandardFont(restoredFont.getFontName(), true)
&& !fontName.contains("Arial")))) {
handleFontInHTML(newFont, current, restoredFont, currentPdfFile);
}
}
private static void handleFontInHTML(final PdfObject newFont, final org.jpedal.render.DynamicVectorRenderer current, final PdfFont restoredFont, final PdfObjectReader currentPdfFile) {
//check for base fonts (explict Arial test for ArialMT)
PdfObject pdfFontDescriptor = newFont.getDictionary(PdfDictionary.FontDescriptor);
//if null check to see if it is a CIF font and get data from DescendantFonts obj
if (pdfFontDescriptor == null) {
final PdfObject Descendent = newFont.getDictionary(PdfDictionary.DescendantFonts);
if (Descendent != null) {
pdfFontDescriptor = Descendent.getDictionary(PdfDictionary.FontDescriptor);
}
}
//write out any embedded font file data
// Only write out if there's visible/invisible text on the page (IsTextSelectable)
if (pdfFontDescriptor != null && current.getBooleanValue(DynamicVectorRenderer.IsTextSelectable)) {
final byte[] stream;
final PdfObject FontFile2 = pdfFontDescriptor.getDictionary(PdfDictionary.FontFile2);
if (FontFile2 != null) { //truetype fonts
stream = currentPdfFile.readStream(FontFile2, true, true, false, false, false, FontFile2.getCacheName(currentPdfFile.getObjectReader()));
current.writeCustom(DynamicVectorRenderer.SAVE_EMBEDDED_FONT, new Object[]{restoredFont, stream, "ttf"});
} else {
final PdfObject FontFile3 = pdfFontDescriptor.getDictionary(PdfDictionary.FontFile3);
if (FontFile3 != null) { //type1c fonts
restoredFont.getGlyphData().setRenderer(current);
stream = currentPdfFile.readStream(FontFile3, true, true, false, false, false, FontFile3.getCacheName(currentPdfFile.getObjectReader()));
if (stream != null && stream.length > 4 && stream[0] == 'O' && stream[1] == 'T' && stream[2] == 'T' && stream[3] == 'O') {
current.writeCustom(DynamicVectorRenderer.SAVE_EMBEDDED_FONT, new Object[]{restoredFont, stream, "otf"});
} else {
current.writeCustom(DynamicVectorRenderer.SAVE_EMBEDDED_FONT, new Object[]{restoredFont, stream, "cff"});
}
} else {
final PdfObject FontFile = pdfFontDescriptor.getDictionary(PdfDictionary.FontFile);
if (FontFile != null) { //type1 fonts
restoredFont.getGlyphData().setRenderer(current);
stream = currentPdfFile.readStream(FontFile, true, true, false, false, false, FontFile.getCacheName(currentPdfFile.getObjectReader()));
current.writeCustom(DynamicVectorRenderer.SAVE_EMBEDDED_FONT, new Object[]{restoredFont, stream, "t1"});
}
}
}
}
}
}
