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Diffstat (limited to 'src/main/java/org/pdfbox/ttf/TTFParser.java')
| -rw-r--r-- | src/main/java/org/pdfbox/ttf/TTFParser.java | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/src/main/java/org/pdfbox/ttf/TTFParser.java b/src/main/java/org/pdfbox/ttf/TTFParser.java new file mode 100644 index 0000000..903badb --- /dev/null +++ b/src/main/java/org/pdfbox/ttf/TTFParser.java @@ -0,0 +1,219 @@ +/**
+ * Copyright (c) 2004, www.pdfbox.org
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of pdfbox; nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://www.pdfbox.org
+ *
+ */
+package org.pdfbox.ttf;
+
+import java.io.File;
+import java.io.IOException;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+/**
+ * A true type font file parser.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.3 $
+ */
+public class TTFParser
+{
+ /**
+ * A simple command line program to test parsing of a TTF file. <br/>
+ * usage: java org.pdfbox.ttf.TTFParser <ttf-file>
+ *
+ * @param args The command line arguments.
+ *
+ * @throws IOException If there is an error while parsing the font file.
+ */
+ public static void main( String[] args ) throws IOException
+ {
+ if( args.length != 1 )
+ {
+ System.err.println( "usage: java org.pdfbox.ttf.TTFParser <ttf-file>" );
+ System.exit( -1 );
+ }
+ TTFParser parser = new TTFParser();
+ TrueTypeFont font = parser.parseTTF( args[0] );
+ System.out.println( "Font:" + font );
+ }
+
+ /**
+ * Parse a file and get a true type font.
+ * @param ttfFile The TTF file.
+ * @return A true type font.
+ * @throws IOException If there is an error parsing the true type font.
+ */
+ public TrueTypeFont parseTTF( String ttfFile ) throws IOException
+ {
+ RAFDataStream raf = new RAFDataStream( ttfFile, "r" );
+ return parseTTF( raf );
+ }
+
+ /**
+ * Parse a file and get a true type font.
+ * @param ttfFile The TTF file.
+ * @return A true type font.
+ * @throws IOException If there is an error parsing the true type font.
+ */
+ public TrueTypeFont parseTTF( File ttfFile ) throws IOException
+ {
+ RAFDataStream raf = new RAFDataStream( ttfFile, "r" );
+ return parseTTF( raf );
+ }
+
+ /**
+ * Parse a file and get a true type font.
+ * @param raf The TTF file.
+ * @return A true type font.
+ * @throws IOException If there is an error parsing the true type font.
+ */
+ public TrueTypeFont parseTTF( TTFDataStream raf ) throws IOException
+ {
+ TrueTypeFont font = new TrueTypeFont( raf );
+ font.setVersion( raf.read32Fixed() );
+ int numberOfTables = raf.readUnsignedShort();
+ int searchRange = raf.readUnsignedShort();
+ int entrySelector = raf.readUnsignedShort();
+ int rangeShift = raf.readUnsignedShort();
+ for( int i=0; i<numberOfTables; i++ )
+ {
+ TTFTable table = readTableDirectory( raf );
+ font.addTable( table );
+ }
+ List initialized = new ArrayList();
+ //need to initialize a couple tables in a certain order
+ HeaderTable head = font.getHeader();
+ raf.seek( head.getOffset() );
+ head.initData( font, raf );
+ initialized.add( head );
+
+
+ HorizontalHeaderTable hh = font.getHorizontalHeader();
+ raf.seek( hh.getOffset() );
+ hh.initData( font, raf );
+ initialized.add( hh );
+
+ MaximumProfileTable maxp = font.getMaximumProfile();
+ raf.seek( maxp.getOffset() );
+ maxp.initData( font, raf );
+ initialized.add( maxp );
+
+ PostScriptTable post = font.getPostScript();
+ raf.seek( post.getOffset() );
+ post.initData( font, raf );
+ initialized.add( post );
+
+ IndexToLocationTable loc = font.getIndexToLocation();
+ raf.seek( loc.getOffset() );
+ loc.initData( font, raf );
+ initialized.add( loc );
+
+ Iterator iter = font.getTables().iterator();
+ while( iter.hasNext() )
+ {
+ TTFTable table = (TTFTable)iter.next();
+ if( !initialized.contains( table ) )
+ {
+ raf.seek( table.getOffset() );
+ table.initData( font, raf );
+ }
+ }
+ return font;
+ }
+
+ private TTFTable readTableDirectory( TTFDataStream raf ) throws IOException
+ {
+ TTFTable retval = null;
+ String tag = raf.readString( 4 );
+ if( tag.equals( CMAPTable.TAG ) )
+ {
+ retval = new CMAPTable();
+ }
+ else if( tag.equals( GlyphTable.TAG ) )
+ {
+ retval = new GlyphTable();
+ }
+ else if( tag.equals( HeaderTable.TAG ) )
+ {
+ retval = new HeaderTable();
+ }
+ else if( tag.equals( HorizontalHeaderTable.TAG ) )
+ {
+ retval = new HorizontalHeaderTable();
+ }
+ else if( tag.equals( HorizontalMetricsTable.TAG ) )
+ {
+ retval = new HorizontalMetricsTable();
+ }
+ else if( tag.equals( IndexToLocationTable.TAG ) )
+ {
+ retval = new IndexToLocationTable();
+ }
+ else if( tag.equals( MaximumProfileTable.TAG ) )
+ {
+ retval = new MaximumProfileTable();
+ }
+ else if( tag.equals( NamingTable.TAG ) )
+ {
+ retval = new NamingTable();
+ }
+ else if( tag.equals( OS2WindowsMetricsTable.TAG ) )
+ {
+ retval = new OS2WindowsMetricsTable();
+ }
+ else if( tag.equals( PostScriptTable.TAG ) )
+ {
+ retval = new PostScriptTable();
+ }
+ else if( tag.equals( GlyphTable.TAG ) )
+ {
+ retval = new GlyphTable();
+ }
+ else if( tag.equals( GlyphTable.TAG ) )
+ {
+ retval = new GlyphTable();
+ }
+ else if( tag.equals( DigitalSignatureTable.TAG ) )
+ {
+ retval = new DigitalSignatureTable();
+ }
+ else
+ {
+ //unknown table type but read it anyway.
+ retval = new TTFTable();
+ }
+ retval.setTag( tag );
+ retval.setCheckSum( raf.readUnsignedInt() );
+ retval.setOffset( raf.readUnsignedInt() );
+ retval.setLength( raf.readUnsignedInt() );
+ return retval;
+ }
+}
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