From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001 From: tknall Date: Fri, 1 Dec 2006 12:20:24 +0000 Subject: Initial import of release 2.2. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../java/org/pdfbox/pdmodel/font/PDCIDFont.java | 248 +++++++++++++++++++++ 1 file changed, 248 insertions(+) create mode 100644 src/main/java/org/pdfbox/pdmodel/font/PDCIDFont.java (limited to 'src/main/java/org/pdfbox/pdmodel/font/PDCIDFont.java') diff --git a/src/main/java/org/pdfbox/pdmodel/font/PDCIDFont.java b/src/main/java/org/pdfbox/pdmodel/font/PDCIDFont.java new file mode 100644 index 0000000..e13b821 --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/font/PDCIDFont.java @@ -0,0 +1,248 @@ +/** + * Copyright (c) 2003-2005, 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 java.util.HashMap; +import java.util.Map; + +import org.pdfbox.cos.COSArray; +import org.pdfbox.cos.COSBase; +import org.pdfbox.cos.COSDictionary; +import org.pdfbox.cos.COSInteger; +import org.pdfbox.cos.COSName; +import org.pdfbox.cos.COSNumber; +import org.pdfbox.pdmodel.common.PDRectangle; + +import org.apache.log4j.Logger; + +/** + * This is implementation for the CIDFontType0/CIDFontType2 Fonts. + * + * @author Ben Litchfield (ben@csh.rit.edu) + * @version $Revision: 1.7 $ + */ +public abstract class PDCIDFont extends PDFont +{ + private static Logger log = Logger.getLogger(PDCIDFont.class); + + + private Map widthCache = new HashMap(); + + /** + * Constructor. + */ + public PDCIDFont() + { + super(); + } + + /** + * Constructor. + * + * @param fontDictionary The font dictionary according to the PDF specification. + */ + public PDCIDFont( 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 ) + { + throw new RuntimeException( "Not yet implemented" ); + } + + /** + * This will get the fonts bouding box. + * + * @return The fonts bouding box. + * + * @throws IOException If there is an error getting the font bounding box. + */ + public PDRectangle getFontBoundingBox() throws IOException + { + throw new RuntimeException( "Not yet implemented" ); + } + + /** + * This will get the default width. The default value for the default width is 1000. + * + * @return The default width for the glyphs in this font. + */ + public long getDefaultWidth() + { + long dw = 1000; + COSNumber number = (COSNumber)font.getDictionaryObject( COSName.getPDFName( "DW" ) ); + if( number != null ) + { + dw = number.intValue(); + } + return dw; + } + + /** + * This will set the default width for the glyphs of this font. + * + * @param dw The default width. + */ + public void setDefaultWidth( long dw ) + { + font.setItem( COSName.getPDFName( "DW" ), new COSInteger( dw ) ); + } + + /** + * 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 retval = 0.0f; + int code = getCodeFromArray( c, offset, length ); + + Float widthFloat = (Float)widthCache.get( new Integer( code ) ); + if( widthFloat == null ) + { + COSArray widths = (COSArray)font.getDictionaryObject( COSName.getPDFName( "W" ) ); + + if( widths != null ) + { + boolean foundWidth = false; + for( int i=0; !foundWidth && i= firstCode.intValue() && + code < firstCode.intValue() + array.size() ) + { + COSNumber rangeWidth = + (COSNumber)array.get( code - firstCode.intValue() ); + retval = rangeWidth.floatValue(); + foundWidth = true; + } + } + else + { + COSNumber secondCode = (COSNumber)next; + i++; + COSNumber rangeWidth = (COSNumber)widths.getObject( i ); + if( code >= firstCode.intValue() && + code <= secondCode.intValue() ) + { + retval = rangeWidth.floatValue(); + foundWidth = true; + } + } + } + widthCache.put( new Integer( code ), new Float( retval ) ); + } + } + else + { + retval = widthFloat.floatValue(); + } + + if(log.isDebugEnabled() ) + { + log.debug( "PDCIDFontType0Font.getFontWidth( code=" + code +" ) retval=" +retval ); + } + return retval; + } + + /** + * 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 totalWidths = 0.0f; + float characterCount = 0.0f; + float defaultWidth = getDefaultWidth(); + COSArray widths = (COSArray)font.getDictionaryObject( COSName.getPDFName( "W" ) ); + + if( widths != null ) + { + for( int i=0; i 0 ) + { + totalWidths += rangeWidth.floatValue(); + characterCount += 1; + } + } + } + } + float average = totalWidths / characterCount; + if( average <= 0 ) + { + average = defaultWidth; + } + return average; + } +} \ No newline at end of file -- cgit v1.2.3