diff options
Diffstat (limited to 'src/main/java/org/pdfbox/pdmodel/font/Type3StreamParser.java')
| -rw-r--r-- | src/main/java/org/pdfbox/pdmodel/font/Type3StreamParser.java | 607 |
1 files changed, 607 insertions, 0 deletions
diff --git a/src/main/java/org/pdfbox/pdmodel/font/Type3StreamParser.java b/src/main/java/org/pdfbox/pdmodel/font/Type3StreamParser.java new file mode 100644 index 0000000..a2adc1f --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/font/Type3StreamParser.java @@ -0,0 +1,607 @@ +/**
+ * 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.Image;
+
+import java.io.IOException;
+
+import java.util.List;
+
+import org.pdfbox.cos.COSNumber;
+import org.pdfbox.cos.COSStream;
+
+import org.pdfbox.pdmodel.graphics.xobject.PDInlinedImage;
+
+import org.pdfbox.util.BoundingBox;
+import org.pdfbox.util.ImageParameters;
+import org.pdfbox.util.PDFOperator;
+import org.pdfbox.util.PDFStreamEngine;
+
+/**
+ * This class will handle creating an image for a type 3 glyph.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.8 $
+ */
+public class Type3StreamParser extends PDFStreamEngine
+{
+ private PDInlinedImage image = null;
+ private BoundingBox box = null;
+
+
+ /**
+ * This will parse a type3 stream and create an image from it.
+ *
+ * @param type3Stream The stream containing the operators to draw the image.
+ *
+ * @return The image that was created.
+ *
+ * @throws IOException If there is an error processing the stream.
+ */
+ public Image createImage( COSStream type3Stream ) throws IOException
+ {
+ processStream( null, null, type3Stream );
+ return image.createImage();
+ }
+
+ /**
+ * This is used to handle an operation.
+ *
+ * @param operator The operation to perform.
+ * @param arguments The list of arguments.
+ *
+ * @throws IOException If there is an error processing the operation.
+ */
+ protected void processOperator( PDFOperator operator, List arguments ) throws IOException
+ {
+ super.processOperator( operator, arguments );
+ String operation = operator.getOperation();
+ /**
+ if( operation.equals( "b" ) )
+ {
+ //Close, fill, and stroke path using nonzero winding number rule
+ }
+ else if( operation.equals( "B" ) )
+ {
+ //Fill and stroke path using nonzero winding number rule
+ }
+ else if( operation.equals( "b*" ) )
+ {
+ //Close, fill, and stroke path using even-odd rule
+ }
+ else if( operation.equals( "B*" ) )
+ {
+ //Fill and stroke path using even-odd rule
+ }
+ else if( operation.equals( "BDC" ) )
+ {
+ //(PDF 1.2) Begin marked-content sequence with property list
+ }
+ else **/if( operation.equals( "BI" ) )
+ {
+ ImageParameters params = operator.getImageParameters();
+ image = new PDInlinedImage();
+ image.setImageParameters( params );
+ image.setImageData( operator.getImageData() );
+ //begin inline image object
+ }/**
+ else if( operation.equals( "BMC" ) )
+ {
+ //(PDF 1.2) Begin marked-content sequence
+ }
+ else if( operation.equals( "BT" ) )
+ {
+ log.debug( "<BT>" );
+ textMatrix = new Matrix();
+ textLineMatrix = new Matrix();
+ }
+ else if( operation.equals( "BX" ) )
+ {
+ //(PDF 1.1) Begin compatibility section
+ }
+ else if( operation.equals( "c" ) )
+ {
+ //Append curved segment to path (three control points)
+ }
+ else if( operation.equals( "cm" ) )
+ {
+ }
+ else if( operation.equals( "cs" ) )
+ {
+ }
+ else if( operation.equals( "CS" ) )
+ {
+ }
+ else if( operation.equals( "d" ) )
+ {
+ //Set the line dash pattern in the graphics state
+ }
+ else */if( operation.equals( "d0" ) )
+ {
+ //set glyph with for a type3 font
+ //COSNumber horizontalWidth = (COSNumber)arguments.get( 0 );
+ //COSNumber verticalWidth = (COSNumber)arguments.get( 1 );
+ //width = horizontalWidth.intValue();
+ //height = verticalWidth.intValue();
+ }
+ else if( operation.equals( "d1" ) )
+ {
+ //set glyph with and bounding box for type 3 font
+ //COSNumber horizontalWidth = (COSNumber)arguments.get( 0 );
+ //COSNumber verticalWidth = (COSNumber)arguments.get( 1 );
+ COSNumber llx = (COSNumber)arguments.get( 2 );
+ COSNumber lly = (COSNumber)arguments.get( 3 );
+ COSNumber urx = (COSNumber)arguments.get( 4 );
+ COSNumber ury = (COSNumber)arguments.get( 5 );
+
+ //width = horizontalWidth.intValue();
+ //height = verticalWidth.intValue();
+ box = new BoundingBox();
+ box.setLowerLeftX( llx.floatValue() );
+ box.setLowerLeftY( lly.floatValue() );
+ box.setUpperRightX( urx.floatValue() );
+ box.setUpperRightY( ury.floatValue() );
+ }/*
+ else if( operation.equals( "Do" ) )
+ {
+ //invoke named object.
+ }
+ else if( operation.equals( "DP" ) )
+ {
+ //(PDF 1.2) De.ne marked-content point with property list
+ }
+ else if( operation.equals( "EI" ) )
+ {
+ //end inline image object
+ }
+ else if( operation.equals( "EMC" ) )
+ {
+ //End inline image object
+ }
+ else if( operation.equals( "ET" ) )
+ {
+ log.debug( "<ET>" );
+ textMatrix = null;
+ textLineMatrix = null;
+ }
+ else if( operation.equals( "EX" ) )
+ {
+ //(PDF 1.1) End compatibility section
+ }
+ else if( operation.equals( "f" ) )
+ {
+ //Fill the path, using the nonzero winding number rule to determine the region to .ll
+ }
+ else if( operation.equals( "F" ) )
+ {
+ }
+ else if( operation.equals( "f*" ) )
+ {
+ //Fill path using even-odd rule
+ }
+ else if( operation.equals( "g" ) )
+ {
+ }
+ else if( operation.equals( "G" ) )
+ {
+ }
+ else if( operation.equals( "gs" ) )
+ {
+ }
+ else if( operation.equals( "h" ) )
+ {
+ //close subpath
+ }
+ else if( operation.equals( "i" ) )
+ {
+ //set flatness tolerance, not sure what this does
+ }
+ else if( operation.equals( "ID" ) )
+ {
+ //begin inline image data
+ }
+ else if( operation.equals( "j" ) )
+ {
+ //Set the line join style in the graphics state
+ //System.out.println( "<j>" );
+ }
+ else if( operation.equals( "J" ) )
+ {
+ //Set the line cap style in the graphics state
+ //System.out.println( "<J>" );
+ }
+ else if( operation.equals( "k" ) )
+ {
+ //Set CMYK color for nonstroking operations
+ }
+ else if( operation.equals( "K" ) )
+ {
+ //Set CMYK color for stroking operations
+ }
+ else if( operation.equals( "l" ) )
+ {
+ //append straight line segment from the current point to the point.
+ COSNumber x = (COSNumber)arguments.get( 0 );
+ COSNumber y = (COSNumber)arguments.get( 1 );
+ linePath.lineTo( x.floatValue(), pageSize.getHeight()-y.floatValue() );
+ }
+ else if( operation.equals( "m" ) )
+ {
+ COSNumber x = (COSNumber)arguments.get( 0 );
+ COSNumber y = (COSNumber)arguments.get( 1 );
+ linePath.reset();
+ linePath.moveTo( x.floatValue(), pageSize.getHeight()-y.floatValue() );
+ //System.out.println( "<m x=\"" + x.getValue() + "\" y=\"" + y.getValue() + "\" >" );
+ }
+ else if( operation.equals( "M" ) )
+ {
+ //System.out.println( "<M>" );
+ }
+ else if( operation.equals( "MP" ) )
+ {
+ //(PDF 1.2) Define marked-content point
+ }
+ else if( operation.equals( "n" ) )
+ {
+ //End path without .lling or stroking
+ //System.out.println( "<n>" );
+ }
+ else if( operation.equals( "q" ) )
+ {
+ //save graphics state
+ if( log.isDebugEnabled() )
+ {
+ log.debug( "<" + operation + "> - save state" );
+ }
+ graphicsStack.push(graphicsState.clone());
+ }
+ else if( operation.equals( "Q" ) )
+ {
+ //restore graphics state
+ if( log.isDebugEnabled() )
+ {
+ log.debug( "<" + operation + "> - restore state" );
+ }
+ graphicsState = (PDGraphicsState)graphicsStack.pop();
+ }
+ else if( operation.equals( "re" ) )
+ {
+ }
+ else if( operation.equals( "rg" ) )
+ {
+ //Set RGB color for nonstroking operations
+ }
+ else if( operation.equals( "RG" ) )
+ {
+ //Set RGB color for stroking operations
+ }
+ else if( operation.equals( "ri" ) )
+ {
+ //Set color rendering intent
+ }
+ else if( operation.equals( "s" ) )
+ {
+ //Close and stroke path
+ }
+ else if( operation.equals( "S" ) )
+ {
+ graphics.draw( linePath );
+ }
+ else if( operation.equals( "sc" ) )
+ {
+ //set color for nonstroking operations
+ //System.out.println( "<sc>" );
+ }
+ else if( operation.equals( "SC" ) )
+ {
+ //set color for stroking operations
+ //System.out.println( "<SC>" );
+ }
+ else if( operation.equals( "scn" ) )
+ {
+ //set color for nonstroking operations special
+ }
+ else if( operation.equals( "SCN" ) )
+ {
+ //set color for stroking operations special
+ }
+ else if( operation.equals( "sh" ) )
+ {
+ //(PDF 1.3) Paint area de.ned by shading pattern
+ }
+ else if( operation.equals( "T*" ) )
+ {
+ if (log.isDebugEnabled())
+ {
+ log.debug("<T* graphicsState.getTextState().getLeading()=\"" +
+ graphicsState.getTextState().getLeading() + "\">");
+ }
+ //move to start of next text line
+ if( graphicsState.getTextState().getLeading() == 0 )
+ {
+ graphicsState.getTextState().setLeading( -.01f );
+ }
+ Matrix td = new Matrix();
+ td.setValue( 2, 1, -1 * graphicsState.getTextState().getLeading() * textMatrix.getValue(1,1));
+ textLineMatrix = textLineMatrix.multiply( td );
+ textMatrix = textLineMatrix.copy();
+ }
+ else if( operation.equals( "Tc" ) )
+ {
+ //set character spacing
+ COSNumber characterSpacing = (COSNumber)arguments.get( 0 );
+ if (log.isDebugEnabled())
+ {
+ log.debug("<Tc characterSpacing=\"" + characterSpacing.floatValue() + "\" />");
+ }
+ graphicsState.getTextState().setCharacterSpacing( characterSpacing.floatValue() );
+ }
+ else if( operation.equals( "Td" ) )
+ {
+ COSNumber x = (COSNumber)arguments.get( 0 );
+ COSNumber y = (COSNumber)arguments.get( 1 );
+ if (log.isDebugEnabled())
+ {
+ log.debug("<Td x=\"" + x.floatValue() + "\" y=\"" + y.floatValue() + "\">");
+ }
+ Matrix td = new Matrix();
+ td.setValue( 2, 0, x.floatValue() * textMatrix.getValue(0,0) );
+ td.setValue( 2, 1, y.floatValue() * textMatrix.getValue(1,1) );
+ //log.debug( "textLineMatrix before " + textLineMatrix );
+ textLineMatrix = textLineMatrix.multiply( td );
+ //log.debug( "textLineMatrix after " + textLineMatrix );
+ textMatrix = textLineMatrix.copy();
+ }
+ else if( operation.equals( "TD" ) )
+ {
+ //move text position and set leading
+ COSNumber x = (COSNumber)arguments.get( 0 );
+ COSNumber y = (COSNumber)arguments.get( 1 );
+ if (log.isDebugEnabled())
+ {
+ log.debug("<TD x=\"" + x.floatValue() + "\" y=\"" + y.floatValue() + "\">");
+ }
+ graphicsState.getTextState().setLeading( -1 * y.floatValue() );
+ Matrix td = new Matrix();
+ td.setValue( 2, 0, x.floatValue() * textMatrix.getValue(0,0) );
+ td.setValue( 2, 1, y.floatValue() * textMatrix.getValue(1,1) );
+ //log.debug( "textLineMatrix before " + textLineMatrix );
+ textLineMatrix = textLineMatrix.multiply( td );
+ //log.debug( "textLineMatrix after " + textLineMatrix );
+ textMatrix = textLineMatrix.copy();
+ }
+ else if( operation.equals( "Tf" ) )
+ {
+ //set font and size
+ COSName fontName = (COSName)arguments.get( 0 );
+ graphicsState.getTextState().setFontSize( ((COSNumber)arguments.get( 1 ) ).floatValue() );
+
+ if (log.isDebugEnabled())
+ {
+ log.debug("<Tf font=\"" + fontName.getName() + "\" size=\"" +
+ graphicsState.getTextState().getFontSize() + "\">");
+ }
+
+ //old way
+ //graphicsState.getTextState().getFont() = (COSObject)stream.getDictionaryObject( fontName );
+ //if( graphicsState.getTextState().getFont() == null )
+ //{
+ // graphicsState.getTextState().getFont() = (COSObject)graphicsState.getTextState().getFont()
+ // Dictionary.getItem( fontName );
+ //}
+ graphicsState.getTextState().setFont( (PDFont)fonts.get( fontName.getName() ) );
+ if( graphicsState.getTextState().getFont() == null )
+ {
+ throw new IOException( "Error: Could not find font(" + fontName + ") in map=" + fonts );
+ }
+ //log.debug( "Font Resource=" + fontResource );
+ //log.debug( "Current Font=" + graphicsState.getTextState().getFont() );
+ //log.debug( "graphicsState.getTextState().getFontSize()=" + graphicsState.getTextState().getFontSize() );
+ }
+ else if( operation.equals( "Tj" ) )
+ {
+ COSString string = (COSString)arguments.get( 0 );
+ TextPosition pos = showString( string.getBytes() );
+ if (log.isDebugEnabled())
+ {
+ log.debug("<Tj string=\"" + string.getString() + "\">");
+ }
+ }
+ else if( operation.equals( "TJ" ) )
+ {
+ Matrix td = new Matrix();
+
+ COSArray array = (COSArray)arguments.get( 0 );
+ for( int i=0; i<array.size(); i++ )
+ {
+ COSBase next = array.get( i );
+ if( next instanceof COSNumber )
+ {
+ float value = -1*
+ (((COSNumber)next).floatValue()/1000) *
+ graphicsState.getTextState().getFontSize() *
+ textMatrix.getValue(1,1);
+
+ if (log.isDebugEnabled())
+ {
+ log.debug( "<TJ(" + i + ") value=\"" + value +
+ "\", param=\"" + ((COSNumber)next).floatValue() +
+ "\", fontsize=\"" + graphicsState.getTextState().getFontSize() + "\">" );
+ }
+ td.setValue( 2, 0, value );
+ textMatrix = textMatrix.multiply( td );
+ }
+ else if( next instanceof COSString )
+ {
+ TextPosition pos = showString( ((COSString)next).getBytes() );
+ if (log.isDebugEnabled())
+ {
+ log.debug("<TJ(" + i + ") string=\"" + pos.getString() + "\">");
+ }
+ }
+ else
+ {
+ throw new IOException( "Unknown type in array for TJ operation:" + next );
+ }
+ }
+ }
+ else if( operation.equals( "TL" ) )
+ {
+ COSNumber leading = (COSNumber)arguments.get( 0 );
+ graphicsState.getTextState().setLeading( leading.floatValue() );
+ if (log.isDebugEnabled())
+ {
+ log.debug("<TL leading=\"" + leading.floatValue() + "\" >");
+ }
+ }
+ else if( operation.equals( "Tm" ) )
+ {
+ //Set text matrix and text line matrix
+ COSNumber a = (COSNumber)arguments.get( 0 );
+ COSNumber b = (COSNumber)arguments.get( 1 );
+ COSNumber c = (COSNumber)arguments.get( 2 );
+ COSNumber d = (COSNumber)arguments.get( 3 );
+ COSNumber e = (COSNumber)arguments.get( 4 );
+ COSNumber f = (COSNumber)arguments.get( 5 );
+
+ if (log.isDebugEnabled())
+ {
+ log.debug("<Tm " +
+ "a=\"" + a.floatValue() + "\" " +
+ "b=\"" + b.floatValue() + "\" " +
+ "c=\"" + c.floatValue() + "\" " +
+ "d=\"" + d.floatValue() + "\" " +
+ "e=\"" + e.floatValue() + "\" " +
+ "f=\"" + f.floatValue() + "\" >");
+ }
+
+ textMatrix = new Matrix();
+ textMatrix.setValue( 0, 0, a.floatValue() );
+ textMatrix.setValue( 0, 1, b.floatValue() );
+ textMatrix.setValue( 1, 0, c.floatValue() );
+ textMatrix.setValue( 1, 1, d.floatValue() );
+ textMatrix.setValue( 2, 0, e.floatValue() );
+ textMatrix.setValue( 2, 1, f.floatValue() );
+ textLineMatrix = textMatrix.copy();
+ }
+ else if( operation.equals( "Tr" ) )
+ {
+ //Set text rendering mode
+ //System.out.println( "<Tr>" );
+ }
+ else if( operation.equals( "Ts" ) )
+ {
+ //Set text rise
+ //System.out.println( "<Ts>" );
+ }
+ else if( operation.equals( "Tw" ) )
+ {
+ //set word spacing
+ COSNumber wordSpacing = (COSNumber)arguments.get( 0 );
+ if (log.isDebugEnabled())
+ {
+ log.debug("<Tw wordSpacing=\"" + wordSpacing.floatValue() + "\" />");
+ }
+ graphicsState.getTextState().setWordSpacing( wordSpacing.floatValue() );
+ }
+ else if( operation.equals( "Tz" ) )
+ {
+ //Set horizontal text scaling
+ }
+ else if( operation.equals( "v" ) )
+ {
+ //Append curved segment to path (initial point replicated)
+ }
+ else if( operation.equals( "w" ) )
+ {
+ //Set the line width in the graphics state
+ //System.out.println( "<w>" );
+ }
+ else if( operation.equals( "W" ) )
+ {
+ //Set clipping path using nonzero winding number rule
+ //System.out.println( "<W>" );
+ }
+ else if( operation.equals( "W*" ) )
+ {
+ //Set clipping path using even-odd rule
+ }
+ else if( operation.equals( "y" ) )
+ {
+ //Append curved segment to path (final point replicated)
+ }
+ else if( operation.equals( "'" ) )
+ {
+ // Move to start of next text line, and show text
+ //
+ COSString string = (COSString)arguments.get( 0 );
+ if (log.isDebugEnabled())
+ {
+ log.debug("<' string=\"" + string.getString() + "\">");
+ }
+
+ Matrix td = new Matrix();
+ td.setValue( 2, 1, -1 * graphicsState.getTextState().getLeading() * textMatrix.getValue(1,1));
+ textLineMatrix = textLineMatrix.multiply( td );
+ textMatrix = textLineMatrix.copy();
+
+ showString( string.getBytes() );
+ }
+ else if( operation.equals( "\"" ) )
+ {
+ //Set word and character spacing, move to next line, and show text
+ //
+ COSNumber wordSpacing = (COSNumber)arguments.get( 0 );
+ COSNumber characterSpacing = (COSNumber)arguments.get( 1 );
+ COSString string = (COSString)arguments.get( 2 );
+
+ if (log.isDebugEnabled())
+ {
+ log.debug("<\" wordSpacing=\"" + wordSpacing +
+ "\", characterSpacing=\"" + characterSpacing +
+ "\", string=\"" + string.getString() + "\">");
+ }
+
+ graphicsState.getTextState().setCharacterSpacing( characterSpacing.floatValue() );
+ graphicsState.getTextState().setWordSpacing( wordSpacing.floatValue() );
+
+ Matrix td = new Matrix();
+ td.setValue( 2, 1, -1 * graphicsState.getTextState().getLeading() * textMatrix.getValue(1,1));
+ textLineMatrix = textLineMatrix.multiply( td );
+ textMatrix = textLineMatrix.copy();
+
+ showString( string.getBytes() );
+ }*/
+ }
+
+
+}
\ No newline at end of file |