diff options
Diffstat (limited to 'src/main/java/org/pdfbox/pdmodel/font/PDSimpleFont.java')
| -rw-r--r-- | src/main/java/org/pdfbox/pdmodel/font/PDSimpleFont.java | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/src/main/java/org/pdfbox/pdmodel/font/PDSimpleFont.java b/src/main/java/org/pdfbox/pdmodel/font/PDSimpleFont.java new file mode 100644 index 0000000..a1356ba --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/font/PDSimpleFont.java @@ -0,0 +1,239 @@ +/**
+ * Copyright (c) 2003-2004, 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.pdmodel.font;
+
+import java.awt.Graphics;
+
+import java.io.IOException;
+
+import org.apache.log4j.Logger;
+import org.pdfbox.afmtypes.FontMetric;
+
+import org.pdfbox.cos.COSArray;
+import org.pdfbox.cos.COSDictionary;
+import org.pdfbox.cos.COSName;
+import org.pdfbox.cos.COSNumber;
+import org.pdfbox.cos.COSInteger;
+
+import org.pdfbox.pdmodel.common.PDRectangle;
+import org.pdfbox.pdmodel.common.PDStream;
+
+/**
+ * This class contains implementation details of the simple pdf fonts.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.11 $
+ */
+public abstract class PDSimpleFont extends PDFont
+{
+ private static Logger log = Logger.getLogger( PDSimpleFont.class );
+ /**
+ * Constructor.
+ */
+ public PDSimpleFont()
+ {
+ super();
+ }
+
+ /**
+ * Constructor.
+ *
+ * @param fontDictionary The font dictionary according to the PDF specification.
+ */
+ public PDSimpleFont( COSDictionary fontDictionary )
+ {
+ super( fontDictionary );
+ }
+
+ /**
+ * @see PDFont#drawString( String, Graphics, float, float, float, float, float )
+ */
+ public void drawString( String string, Graphics g, float fontSize,
+ float xScale, float yScale, float x, float y ) throws IOException
+ {
+ log.warn( "Not yet implemented:" + getClass().getName() );
+ }
+
+ /**
+ * This will get the font width for a character.
+ *
+ * @param c The character code to get the width for.
+ * @param offset The offset into the array.
+ * @param length The length of the data.
+ *
+ * @return The width is in 1000 unit of text space, ie 333 or 777
+ *
+ * @throws IOException If an error occurs while parsing.
+ */
+ public float getFontWidth( byte[] c, int offset, int length ) throws IOException
+ {
+ float fontWidth = 0;
+ int code = getCodeFromArray( c, offset, length );
+
+ //hmm should this be in a subclass??
+ COSInteger firstChar = (COSInteger)font.getDictionaryObject( COSName.FIRST_CHAR );
+ COSInteger lastChar = (COSInteger)font.getDictionaryObject( COSName.LAST_CHAR );
+ if( firstChar != null && lastChar != null )
+ {
+ long first = firstChar.intValue();
+ long last = lastChar.intValue();
+ if( code >= first && code <= last && font.getDictionaryObject( COSName.WIDTHS ) != null )
+ {
+ COSArray widthArray = (COSArray)font.getDictionaryObject( COSName.WIDTHS );
+ COSNumber fontWidthObject = (COSNumber)widthArray.get( (int)(code - first) );
+ fontWidth = fontWidthObject.floatValue();
+ }
+ else
+ {
+ fontWidth = getFontWidthFromAFMFile( code );
+ }
+ }
+ else
+ {
+ fontWidth = getFontWidthFromAFMFile( code );
+ }
+ return fontWidth;
+ }
+
+ /**
+ * This will get the average font width for all characters.
+ *
+ * @return The width is in 1000 unit of text space, ie 333 or 777
+ *
+ * @throws IOException If an error occurs while parsing.
+ */
+ public float getAverageFontWidth() throws IOException
+ {
+ float average = 0.0f;
+ float totalWidth = 0.0f;
+ float characterCount = 0.0f;
+ COSArray widths = (COSArray)font.getDictionaryObject( COSName.WIDTHS );
+ if( widths != null )
+ {
+ for( int i=0; i<widths.size(); i++ )
+ {
+ COSNumber fontWidth = (COSNumber)widths.getObject( i );
+ if( fontWidth.floatValue() > 0 )
+ {
+ totalWidth += fontWidth.floatValue();
+ characterCount += 1;
+ }
+ }
+ }
+
+ if( totalWidth > 0 )
+ {
+ average = totalWidth / characterCount;
+ }
+ else
+ {
+ average = getAverageFontWidthFromAFMFile();
+ }
+ return average;
+ }
+
+ /**
+ * This will get the font descriptor for this font.
+ *
+ * @return The font descriptor for this font.
+ *
+ * @throws IOException If there is an error parsing an AFM file, or unable to
+ * create a PDFontDescriptor object.
+ */
+ public PDFontDescriptor getFontDescriptor() throws IOException
+ {
+ PDFontDescriptor retval = null;
+ COSDictionary fd = (COSDictionary)font.getDictionaryObject( COSName.getPDFName( "FontDescriptor" ) );
+ if( fd == null )
+ {
+ FontMetric afm = getAFM();
+ if( afm == null )
+ {
+ throw new IOException( "Error: Can't create font descriptor file" );
+ }
+ retval = new PDFontDescriptorAFM( afm );
+ }
+ else
+ {
+ retval = new PDFontDescriptorDictionary( fd );
+ }
+
+ return retval;
+ }
+
+ /**
+ * This will set the font descriptor.
+ *
+ * @param fontDescriptor The font descriptor.
+ */
+ public void setFontDescriptor( PDFontDescriptorDictionary fontDescriptor )
+ {
+ COSDictionary dic = null;
+ if( fontDescriptor != null )
+ {
+ dic = fontDescriptor.getCOSDictionary();
+ }
+ font.setItem( COSName.getPDFName( "FontDescriptor" ), dic );
+ }
+
+ /**
+ * This will get the ToUnicode stream.
+ *
+ * @return The ToUnicode stream.
+ * @throws IOException If there is an error getting the stream.
+ */
+ public PDStream getToUnicode() throws IOException
+ {
+ return PDStream.createFromCOS( font.getDictionaryObject( "ToUnicode" ) );
+ }
+
+ /**
+ * This will set the ToUnicode stream.
+ *
+ * @param unicode The unicode stream.
+ */
+ public void setToUnicode( PDStream unicode )
+ {
+ font.setItem( "ToUnicode", unicode );
+ }
+
+ /**
+ * This will get the fonts bounding box.
+ *
+ * @return The fonts bouding box.
+ *
+ * @throws IOException If there is an error getting the bounding box.
+ */
+ public PDRectangle getFontBoundingBox() throws IOException
+ {
+ return getFontDescriptor().getFontBoundingBox();
+ }
+}
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