org.apache.fontbox.ttf.OpenTypeFont Java Examples

/**
 * Finds a font with the given PostScript name, or a suitable substitute, or null.
 *
 * @param postScriptName PostScript font name
 */
private FontBoxFont findFontBoxFont(String postScriptName)
{
    Type1Font t1 = (Type1Font)findFont(FontFormat.PFB, postScriptName);
    if (t1 != null)
    {
        return t1;
    }

    TrueTypeFont ttf = (TrueTypeFont)findFont(FontFormat.TTF, postScriptName);
    if (ttf != null)
    {
        return ttf;
    }

    OpenTypeFont otf = (OpenTypeFont) findFont(FontFormat.OTF, postScriptName);
    if (otf != null)
    {
        return otf;
    }

    return null;
}
 

@Override
public GeneralPath getPath(int code) throws IOException
{
    if (ttf instanceof OpenTypeFont && ((OpenTypeFont)ttf).isPostScript())
    {
        // we're not supposed to have CFF fonts inside PDCIDFontType2, but if we do,
        // then we treat their CIDs as GIDs, see PDFBOX-3344
        int cid = codeToGID(code);
        Type2CharString charstring = ((OpenTypeFont)ttf).getCFF().getFont().getType2CharString(cid);
        return charstring.getPath();
    }
    else
    {
        int gid = codeToGID(code);
        GlyphData glyph = ttf.getGlyph().getGlyph(gid);
        if (glyph != null)
        {
            return glyph.getPath();
        }
        return new GeneralPath();
    }
}
 

private OpenTypeFont getOTFFont(String postScriptName, File file)
{
    try
    {
        // todo JH: we don't yet support loading CFF fonts from OTC collections

        OTFParser parser = new OTFParser(false, true);
        OpenTypeFont otf = parser.parse(file);

        if (LOG.isDebugEnabled())
        {
            LOG.debug("Loaded " + postScriptName + " from " + file);
        }
        return otf;
    }
    catch (IOException e)
    {
        LOG.error("Could not load font file: " + file, e);
    }
    return null;
}
 

/**
 * Finds a font with the given PostScript name, or a suitable substitute, or null.
 *
 * @param postScriptName PostScript font name
 */
private FontBoxFont findFontBoxFont(String postScriptName)
{
    Type1Font t1 = (Type1Font) findFont(FontFormat.PFB, postScriptName);
    if (t1 != null)
    {
        return t1;
    }

    TrueTypeFont ttf = (TrueTypeFont) findFont(FontFormat.TTF, postScriptName);
    if (ttf != null)
    {
        return ttf;
    }

    OpenTypeFont otf = (OpenTypeFont) findFont(FontFormat.OTF, postScriptName);
    if (otf != null)
    {
        return otf;
    }

    return null;
}
 

@Override
public GeneralPath getPath(int code) throws IOException
{
    if (ttf instanceof OpenTypeFont && ((OpenTypeFont) ttf).isPostScript())
    {
        // we're not supposed to have CFF fonts inside PDCIDFontType2, but if we do,
        // then we treat their CIDs as GIDs, see PDFBOX-3344
        int cid = codeToGID(code);
        Type2CharString charstring = ((OpenTypeFont) ttf).getCFF().getFont()
                .getType2CharString(cid);
        return charstring.getPath();
    }
    int gid = codeToGID(code);
    GlyphData glyph = ttf.getGlyph().getGlyph(gid);
    if (glyph != null)
    {
        return glyph.getPath();
    }
    return new GeneralPath();
}
 

private static OpenTypeFont getOTFFont(String postScriptName, File file)
{
    try
    {
        // todo JH: we don't yet support loading CFF fonts from OTC collections
        OTFParser parser = new OTFParser(false, true);
        OpenTypeFont otf = parser.parse(file);
        LOG.debug("Loaded {} from {}", postScriptName, file);
        return otf;
    }
    catch (IOException e)
    {
        LOG.error("Could not load font file: " + file, e);
    }
    return null;
}
 

private boolean useLayoutTables(FontKey key, OpenTypeFont otf) throws IOException
{
    if (otf == null)
        return false;
    else if (useLayoutTables)
        return true;
    else if (otf.hasLayoutTables() && !useLayoutTablesFailed) {
        gdef = otf.getGDEF();
        gsub = otf.getGSUB();
        gpos = otf.getGPOS();
        if ((gsub == null) && (gpos == null))
            useLayoutTablesFailed = true;
        return !useLayoutTablesFailed;
    } else
        return false;
}
 

/**
 * Finds a CFF CID-Keyed font with the given PostScript name, or a suitable substitute, or null.
 * This method can also map CJK fonts via their CIDSystemInfo (ROS).
 * 
 * @param fontDescriptor FontDescriptor
 * @param cidSystemInfo the CID system info, e.g. "Adobe-Japan1", if any.
 */
@Override
public CIDFontMapping getCIDFont(String baseFont, PDFontDescriptor fontDescriptor,
                                        PDCIDSystemInfo cidSystemInfo)
{
    // try name match or substitute with OTF
    OpenTypeFont otf1 = (OpenTypeFont)findFont(FontFormat.OTF, baseFont);
    if (otf1 != null)
    {
        return new CIDFontMapping(otf1, null, false);
    }

    // try name match or substitute with TTF
    TrueTypeFont ttf = (TrueTypeFont)findFont(FontFormat.TTF, baseFont);
    if (ttf != null)
    {
        return new CIDFontMapping(null, ttf, false);
    }

    if (cidSystemInfo != null)
    {
        // "In Acrobat 3.0.1 and later, Type 0 fonts that use a CMap whose CIDSystemInfo
        // dictionary defines the Adobe-GB1, Adobe-CNS1 Adobe-Japan1, or Adobe-Korea1 character
        // collection can also be substituted." - Adobe Supplement to the ISO 32000

        String collection = cidSystemInfo.getRegistry() + "-" + cidSystemInfo.getOrdering();
        
        if (collection.equals("Adobe-GB1") || collection.equals("Adobe-CNS1") ||
            collection.equals("Adobe-Japan1") || collection.equals("Adobe-Korea1"))
        {
            // try automatic substitutes via character collection
            PriorityQueue<FontMatch> queue = getFontMatches(fontDescriptor, cidSystemInfo);
            FontMatch bestMatch = queue.poll();
            if (bestMatch != null)
            {
                FontBoxFont font = bestMatch.info.getFont();
                if (font instanceof OpenTypeFont)
                {
                    return new CIDFontMapping((OpenTypeFont)font, null, true);
                }
                else if (font != null)
                {
                    return new CIDFontMapping(null, font, true);
                }  
            }
        }
    }

    // last-resort fallback
    return new CIDFontMapping(null, lastResortFont, true);
}
 

public CIDFontMapping(OpenTypeFont font, FontBoxFont fontBoxFont, boolean isFallback)
{
    super(font, isFallback);
    this.ttf = fontBoxFont;
}
 

/**
 * Finds a CFF CID-Keyed font with the given PostScript name, or a suitable substitute, or null. This method can
 * also map CJK fonts via their CIDSystemInfo (ROS).
 * 
 * @param fontDescriptor FontDescriptor
 * @param cidSystemInfo the CID system info, e.g. "Adobe-Japan1", if any.
 */
@Override
public CIDFontMapping getCIDFont(String baseFont, PDFontDescriptor fontDescriptor,
        PDCIDSystemInfo cidSystemInfo)
{
    // try name match or substitute with OTF
    OpenTypeFont otf1 = (OpenTypeFont) findFont(FontFormat.OTF, baseFont);
    if (otf1 != null)
    {
        return new CIDFontMapping(otf1, null, false);
    }

    // try name match or substitute with TTF
    TrueTypeFont ttf = (TrueTypeFont) findFont(FontFormat.TTF, baseFont);
    if (ttf != null)
    {
        return new CIDFontMapping(null, ttf, false);
    }

    if (cidSystemInfo != null)
    {
        // "In Acrobat 3.0.1 and later, Type 0 fonts that use a CMap whose CIDSystemInfo
        // dictionary defines the Adobe-GB1, Adobe-CNS1 Adobe-Japan1, or Adobe-Korea1 character
        // collection can also be substituted." - Adobe Supplement to the ISO 32000

        String collection = cidSystemInfo.getRegistry() + "-" + cidSystemInfo.getOrdering();

        if (collection.equals("Adobe-GB1") || collection.equals("Adobe-CNS1")
                || collection.equals("Adobe-Japan1") || collection.equals("Adobe-Korea1"))
        {
            // try automatic substitutes via character collection
            PriorityQueue<FontMatch> queue = getFontMatches(fontDescriptor, cidSystemInfo);
            FontMatch bestMatch = queue.poll();
            if (bestMatch != null)
            {
                FontBoxFont font = bestMatch.info.getFont();
                if (font instanceof OpenTypeFont)
                {
                    return new CIDFontMapping((OpenTypeFont) font, null, true);
                }
                else if (font != null)
                {
                    return new CIDFontMapping(null, font, true);
                }
            }
        }
    }

    // last-resort fallback
    return new CIDFontMapping(null, lastResortFont, true);
}
 

/**
 * Constructor.
 *
 * @param fontDictionary The font dictionary according to the PDF specification.
 * @param parent The parent font.
 * @param trueTypeFont The true type font used to create the parent font
 * @throws IOException
 */
public PDCIDFontType2(COSDictionary fontDictionary, PDType0Font parent,
        TrueTypeFont trueTypeFont) throws IOException
{
    super(fontDictionary, parent);

    PDFontDescriptor fd = getFontDescriptor();
    if (trueTypeFont != null)
    {
        ttf = trueTypeFont;
        isEmbedded = true;
        isDamaged = false;
    }
    else
    {
        boolean fontIsDamaged = false;
        TrueTypeFont ttfFont = null;

        PDStream stream = null;
        if (fd != null)
        {
            stream = fd.getFontFile2();
            if (stream == null)
            {
                stream = fd.getFontFile3();
            }
            if (stream == null)
            {
                // Acrobat looks in FontFile too, even though it is not in the spec, see PDFBOX-2599
                stream = fd.getFontFile();
            }
        }

        if (stream != null)
        {
            try
            {
                // embedded OTF or TTF
                OTFParser otfParser = new OTFParser(true);
                OpenTypeFont otf = otfParser.parse(stream.createInputStream());
                ttfFont = otf;

                if (otf.isPostScript())
                {
                    // PDFBOX-3344 contains PostScript outlines instead of TrueType
                    fontIsDamaged = true;
                    LOG.warn(
                            "Found CFF/OTF but expected embedded TTF font " + fd.getFontName());
                }

            }
            catch (NullPointerException | IOException e) // TTF parser is buggy
            {
                fontIsDamaged = true;
                LOG.warn("Could not read embedded OTF for font " + getBaseFont(), e);
            }
        }
        isEmbedded = ttfFont != null;
        isDamaged = fontIsDamaged;

        if (ttfFont == null)
        {
            ttfFont = findFontOrSubstitute();
        }
        ttf = ttfFont;
    }
    cmap = ttf.getUnicodeCmapLookup(false);
    cid2gid = readCIDToGIDMap();
    if (cid2gid != null)
    {
        for (int cid = 0; cid < cid2gid.length; cid++)
        {
            int gid = cid2gid[cid];
            if (gid != 0)
            {
                gid2cid.put(gid, cid);
            }
        }
    }
}
 

public CIDFontMapping(OpenTypeFont font, FontBoxFont fontBoxFont, boolean isFallback)
{
    super(font, isFallback);
    this.ttf = fontBoxFont;
}