package org.apache.fop.fonts;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.io.IOUtils;
import org.apache.fontbox.cff.CFFFont;
import org.apache.fontbox.cff.CFFParser;
import org.apache.fontbox.cff.CFFType1Font;
import org.apache.fop.apps.io.InternalResourceResolver;
import org.apache.fop.fonts.type1.PFBData;
import org.apache.fop.fonts.type1.PFBParser;
import org.apache.fop.fonts.type1.Type1SubsetFile;
import org.apache.fop.render.ps.Type1FontFormatter;
public class CFFToType1Font extends MultiByteFont {
public CFFToType1Font(InternalResourceResolver resourceResolver, EmbeddingMode embeddingMode) {
super(resourceResolver, embeddingMode);
setEmbeddingMode(EmbeddingMode.FULL);
setFontType(FontType.TYPE1);
}
public InputStream getInputStream() throws IOException {
return null;
}
public List<InputStream> getInputStreams() throws IOException {
InputStream cff = super.getInputStream();
return convertOTFToType1(cff);
}
private List<InputStream> convertOTFToType1(InputStream in) throws IOException {
CFFFont f = new CFFParser().parse(IOUtils.toByteArray(in)).get(0);
if (!(f instanceof CFFType1Font)) {
throw new IOException(getEmbedFileURI() + ": only OTF CFF Type1 font can be converted to Type1");
}
List<InputStream> fonts = new ArrayList<InputStream>();
Map<Integer, Integer> glyphs = cidSet.getGlyphs();
int i = 0;
for (Map<Integer, Integer> x : splitGlyphs(glyphs)) {
String iStr = "." + i;
fonts.add(convertOTFToType1(x, f, iStr));
i++;
}
return fonts;
}
private List<Map<Integer, Integer>> splitGlyphs(Map<Integer, Integer> glyphs) {
List<Map<Integer, Integer>> allGlyphs = new ArrayList<Map<Integer, Integer>>();
for (Map.Entry<Integer, Integer> x : glyphs.entrySet()) {
int k = x.getKey();
int v = x.getValue();
int pot = v / 256;
v = v % 256;
while (allGlyphs.size() < pot + 1) {
Map<Integer, Integer> glyphsPerFont = new HashMap<Integer, Integer>();
glyphsPerFont.put(0, 0);
allGlyphs.add(glyphsPerFont);
}
allGlyphs.get(pot).put(k, v);
}
return allGlyphs;
}
private InputStream convertOTFToType1(Map<Integer, Integer> glyphs, CFFFont f, String i) throws IOException {
byte[] t1 = new Type1FontFormatter(glyphs).format((CFFType1Font) f, i);
PFBData pfb = new PFBParser().parsePFB(new ByteArrayInputStream(t1));
ByteArrayOutputStream s1 = new ByteArrayOutputStream();
s1.write(pfb.getHeaderSegment());
ByteArrayOutputStream s2 = new ByteArrayOutputStream();
s2.write(pfb.getEncryptedSegment());
ByteArrayOutputStream s3 = new ByteArrayOutputStream();
s3.write(pfb.getTrailerSegment());
byte[] out = new Type1SubsetFile().stitchFont(s1, s2, s3);
return new ByteArrayInputStream(out);
}
}