diff options
Diffstat (limited to 'src/main/java/org/pdfbox/pdmodel/edit/PDPageContentStream.java')
| -rw-r--r-- | src/main/java/org/pdfbox/pdmodel/edit/PDPageContentStream.java | 648 |
1 files changed, 0 insertions, 648 deletions
diff --git a/src/main/java/org/pdfbox/pdmodel/edit/PDPageContentStream.java b/src/main/java/org/pdfbox/pdmodel/edit/PDPageContentStream.java deleted file mode 100644 index 1e3b25f..0000000 --- a/src/main/java/org/pdfbox/pdmodel/edit/PDPageContentStream.java +++ /dev/null @@ -1,648 +0,0 @@ -/**
- * 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.pdmodel.edit;
-
-import java.awt.Color;
-import java.awt.color.ColorSpace;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-
-import java.text.NumberFormat;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-import java.util.HashMap;
-
-import org.pdfbox.pdmodel.PDDocument;
-import org.pdfbox.pdmodel.PDPage;
-import org.pdfbox.pdmodel.PDResources;
-
-import org.pdfbox.pdmodel.common.COSStreamArray;
-import org.pdfbox.pdmodel.common.PDStream;
-
-import org.pdfbox.pdmodel.font.PDFont;
-import org.pdfbox.pdmodel.graphics.xobject.PDXObjectImage;
-
-import org.pdfbox.cos.COSArray;
-import org.pdfbox.cos.COSName;
-import org.pdfbox.cos.COSString;
-
-
-/**
- * This class will is a convenience for creating page content streams. You MUST
- * call close() when you are finished with this object.
- *
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.14 $
- */
-public class PDPageContentStream
-{
- private PDPage page;
- private OutputStream output;
- private boolean inTextMode = false;
- private Map fontMappings = new HashMap();
- private Map imageMappings = new HashMap();
- private int fontNumber = 1;
- private int imageNumber = 1;
- private PDResources resources;
-
- //cached storage component for getting color values
- private float[] colorComponents = new float[4];
-
- private NumberFormat formatDecimal = NumberFormat.getNumberInstance( Locale.US );
-
- private static final String BEGIN_TEXT = "BT\n";
- private static final String END_TEXT = "ET\n";
- private static final String SET_FONT = "Tf\n";
- private static final String MOVE_TEXT_POSITION = "Td\n";
- private static final String SHOW_TEXT = "Tj\n";
-
- private static final String SAVE_GRAPHICS_STATE = "q\n";
- private static final String RESTORE_GRAPHICS_STATE = "Q\n";
- private static final String CONCATENATE_MATRIX = "cm\n";
- private static final String XOBJECT_DO = "Do\n";
- private static final String RG_STROKING = "RG\n";
- private static final String RG_NON_STROKING = "rg\n";
- private static final String K_STROKING = "K\n";
- private static final String K_NON_STROKING = "k\n";
- private static final String G_STROKING = "G\n";
- private static final String G_NON_STROKING = "g\n";
- private static final String APPEND_RECTANGLE = "re\n";
- private static final String FILL = "f\n";
-
-
- private static final int SPACE = 32;
-
-
- /**
- * Create a new PDPage content stream.
- *
- * @param document The document the page is part of.
- * @param sourcePage The page to write the contents to.
- * @throws IOException If there is an error writing to the page contents.
- */
- public PDPageContentStream( PDDocument document, PDPage sourcePage ) throws IOException
- {
- this(document,sourcePage,false,true);
- }
-
- /**
- * Create a new PDPage content stream.
- *
- * @param document The document the page is part of.
- * @param sourcePage The page to write the contents to.
- * @param appendContent Indicates whether content will be overwritten. If false all previous content is deleted.
- * @param compress Tell if the content stream should compress the page contents.
- * @throws IOException If there is an error writing to the page contents.
- */
- public PDPageContentStream( PDDocument document, PDPage sourcePage, boolean appendContent, boolean compress )
- throws IOException
- {
- page = sourcePage;
- resources = page.getResources();
- if( resources == null )
- {
- resources = new PDResources();
- page.setResources( resources );
- }
- // If request specifies the need to append to the document
- if(appendContent)
- {
- // Get the pdstream from the source page instead of creating a new one
- PDStream contents = sourcePage.getContents();
-
- // Create a pdstream to append new content
- PDStream contentsToAppend = new PDStream( document );
-
- // This will be the resulting COSStreamArray after existing and new streams are merged
- COSStreamArray compoundStream = null;
-
- // If contents is already an array, a new stream is simply appended to it
- if(contents.getStream() instanceof COSStreamArray)
- {
- compoundStream = (COSStreamArray)contents.getStream();
- compoundStream.appendStream( contentsToAppend.getStream());
- }
- else
- {
- // Creates the COSStreamArray and adds the current stream plus a new one to it
- COSArray newArray = new COSArray();
- newArray.add(contents.getCOSObject());
- newArray.add(contentsToAppend.getCOSObject());
- compoundStream = new COSStreamArray(newArray);
- }
-
- if( compress )
- {
- List filters = new ArrayList();
- filters.add( COSName.FLATE_DECODE );
- contentsToAppend.setFilters( filters );
- }
-
- // Sets the compoundStream as page contents
- sourcePage.setContents( new PDStream(compoundStream) );
- output = contentsToAppend.createOutputStream();
- }
- else
- {
- PDStream contents = new PDStream( document );
- if( compress )
- {
- List filters = new ArrayList();
- filters.add( COSName.FLATE_DECODE );
- contents.setFilters( filters );
- }
- sourcePage.setContents( contents );
- output = contents.createOutputStream();
- }
- formatDecimal.setMaximumFractionDigits( 10 );
- formatDecimal.setGroupingUsed( false );
- }
-
- /**
- * Begin some text operations.
- *
- * @throws IOException If there is an error writing to the stream or if you attempt to
- * nest beginText calls.
- */
- public void beginText() throws IOException
- {
- if( inTextMode )
- {
- throw new IOException( "Error: Nested beginText() calls are not allowed." );
- }
- appendRawCommands( BEGIN_TEXT );
- inTextMode = true;
- }
-
- /**
- * End some text operations.
- *
- * @throws IOException If there is an error writing to the stream or if you attempt to
- * nest endText calls.
- */
- public void endText() throws IOException
- {
- if( !inTextMode )
- {
- throw new IOException( "Error: You must call beginText() before calling endText." );
- }
- appendRawCommands( END_TEXT );
- inTextMode = false;
- }
-
- /**
- * Set the font to draw text with.
- *
- * @param font The font to use.
- * @param fontSize The font size to draw the text.
- * @throws IOException If there is an error writing the font information.
- */
- public void setFont( PDFont font, float fontSize ) throws IOException
- {
- String fontMapping = (String)fontMappings.get( font );
- if( fontMapping == null )
- {
- fontMapping = "F" + fontNumber++;
- fontMappings.put( font, fontMapping );
- resources.getFonts().put( fontMapping, font );
- }
- appendRawCommands( "/");
- appendRawCommands( fontMapping );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( fontSize ) );
- appendRawCommands( SPACE );
- appendRawCommands( SET_FONT );
- }
-
- /**
- * Draw an image at the x,y coordinates, with the default size of the image.
- *
- * @param image The image to draw.
- * @param x The x-coordinate to draw the image.
- * @param y The y-coordinate to draw the image.
- *
- * @throws IOException If there is an error writing to the stream.
- */
- public void drawImage( PDXObjectImage image, int x, int y ) throws IOException
- {
- drawImage( image, x, y, image.getWidth(), image.getHeight() );
- }
-
- /**
- * Draw an image at the x,y coordinates and a certain width and height.
- *
- * @param image The image to draw.
- * @param x The x-coordinate to draw the image.
- * @param y The y-coordinate to draw the image.
- * @param width The width of the image to draw.
- * @param height The height of the image to draw.
- *
- * @throws IOException If there is an error writing to the stream.
- */
- public void drawImage( PDXObjectImage image, int x, int y, int width, int height ) throws IOException
- {
- String imageMapping = (String)imageMappings.get( image );
- if( imageMapping == null )
- {
- imageMapping = "Im" + imageNumber++;
- imageMappings.put( image, imageMapping );
- resources.getImages().put( imageMapping, image );
- }
- appendRawCommands( SAVE_GRAPHICS_STATE );
- appendRawCommands( formatDecimal.format( width ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( 0 ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( 0 ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( height ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( x ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( y ) );
- appendRawCommands( SPACE );
- appendRawCommands( CONCATENATE_MATRIX );
- appendRawCommands( SPACE );
- appendRawCommands( "/" );
- appendRawCommands( imageMapping );
- appendRawCommands( SPACE );
- appendRawCommands( XOBJECT_DO );
- appendRawCommands( SPACE );
- appendRawCommands( RESTORE_GRAPHICS_STATE );
- }
-
- /**
- * The Td operator.
- * @param x The x coordinate.
- * @param y The y coordinate.
- * @throws IOException If there is an error writing to the stream.
- */
- public void moveTextPositionByAmount( float x, float y ) throws IOException
- {
- if( !inTextMode )
- {
- throw new IOException( "Error: must call beginText() before moveTextPositionByAmount");
- }
- appendRawCommands( formatDecimal.format( x ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( y ) );
- appendRawCommands( SPACE );
- appendRawCommands( MOVE_TEXT_POSITION );
- }
-
- /**
- * This will draw a string at the current location on the screen.
- *
- * @param text The text to draw.
- * @throws IOException If an io exception occurs.
- */
- public void drawString( String text ) throws IOException
- {
- if( !inTextMode )
- {
- throw new IOException( "Error: must call beginText() before drawString");
- }
- COSString string = new COSString( text );
- ByteArrayOutputStream buffer = new ByteArrayOutputStream();
- string.writePDF( buffer );
- appendRawCommands( new String( buffer.toByteArray(), "ISO-8859-1"));
- appendRawCommands( SPACE );
- appendRawCommands( SHOW_TEXT );
- }
-
- /**
- * Set the stroking color, specified as RGB.
- *
- * @param color The color to set.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setStrokingColor( Color color ) throws IOException
- {
- ColorSpace colorSpace = color.getColorSpace();
- if( colorSpace.getType() == ColorSpace.TYPE_RGB )
- {
- setStrokingColor( color.getRed(), color.getGreen(), color.getBlue() );
- }
- else if( colorSpace.getType() == ColorSpace.TYPE_GRAY )
- {
- color.getColorComponents( colorComponents );
- setStrokingColor( colorComponents[0] );
- }
- else if( colorSpace.getType() == ColorSpace.TYPE_CMYK )
- {
- color.getColorComponents( colorComponents );
- setStrokingColor( colorComponents[0], colorComponents[2], colorComponents[2], colorComponents[3] );
- }
- else
- {
- throw new IOException( "Error: unknown colorspace:" + colorSpace );
- }
- }
-
- /**
- * Set the non stroking color, specified as RGB.
- *
- * @param color The color to set.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setNonStrokingColor( Color color ) throws IOException
- {
- ColorSpace colorSpace = color.getColorSpace();
- if( colorSpace.getType() == ColorSpace.TYPE_RGB )
- {
- setNonStrokingColor( color.getRed(), color.getGreen(), color.getBlue() );
- }
- else if( colorSpace.getType() == ColorSpace.TYPE_GRAY )
- {
- color.getColorComponents( colorComponents );
- setNonStrokingColor( colorComponents[0] );
- }
- else if( colorSpace.getType() == ColorSpace.TYPE_CMYK )
- {
- color.getColorComponents( colorComponents );
- setNonStrokingColor( colorComponents[0], colorComponents[2], colorComponents[2], colorComponents[3] );
- }
- else
- {
- throw new IOException( "Error: unknown colorspace:" + colorSpace );
- }
- }
-
- /**
- * Set the stroking color, specified as RGB, 0-255.
- *
- * @param r The red value.
- * @param g The green value.
- * @param b The blue value.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setStrokingColor( int r, int g, int b ) throws IOException
- {
- appendRawCommands( formatDecimal.format( r/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( g/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( b/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( RG_STROKING );
- }
-
- /**
- * Set the stroking color, specified as CMYK, 0-255.
- *
- * @param c The cyan value.
- * @param m The magenta value.
- * @param y The yellow value.
- * @param k The black value.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setStrokingColor( int c, int m, int y, int k) throws IOException
- {
- appendRawCommands( formatDecimal.format( c/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( m/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( y/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( k/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( K_STROKING );
- }
-
- /**
- * Set the stroking color, specified as CMYK, 0.0-1.0.
- *
- * @param c The cyan value.
- * @param m The magenta value.
- * @param y The yellow value.
- * @param k The black value.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setStrokingColor( double c, double m, double y, double k) throws IOException
- {
- appendRawCommands( formatDecimal.format( c ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( m ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( y ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( k ) );
- appendRawCommands( SPACE );
- appendRawCommands( K_STROKING );
- }
-
- /**
- * Set the stroking color, specified as grayscale, 0-255.
- *
- * @param g The gray value.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setStrokingColor( int g ) throws IOException
- {
- appendRawCommands( formatDecimal.format( g/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( G_STROKING );
- }
-
- /**
- * Set the stroking color, specified as Grayscale 0.0-1.0.
- *
- * @param g The gray value.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setStrokingColor( double g ) throws IOException
- {
- appendRawCommands( formatDecimal.format( g ) );
- appendRawCommands( SPACE );
- appendRawCommands( G_STROKING );
- }
-
- /**
- * Set the non stroking color, specified as RGB, 0-255.
- *
- * @param r The red value.
- * @param g The green value.
- * @param b The blue value.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setNonStrokingColor( int r, int g, int b ) throws IOException
- {
- appendRawCommands( formatDecimal.format( r/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( g/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( b/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( RG_NON_STROKING );
- }
-
- /**
- * Set the non stroking color, specified as CMYK, 0-255.
- *
- * @param c The cyan value.
- * @param m The magenta value.
- * @param y The yellow value.
- * @param k The black value.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setNonStrokingColor( int c, int m, int y, int k) throws IOException
- {
- appendRawCommands( formatDecimal.format( c/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( m/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( y/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( k/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( K_NON_STROKING );
- }
-
- /**
- * Set the non stroking color, specified as CMYK, 0.0-1.0.
- *
- * @param c The cyan value.
- * @param m The magenta value.
- * @param y The yellow value.
- * @param k The black value.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setNonStrokingColor( double c, double m, double y, double k) throws IOException
- {
- appendRawCommands( formatDecimal.format( c ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( m ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( y ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( k ) );
- appendRawCommands( SPACE );
- appendRawCommands( K_NON_STROKING );
- }
-
- /**
- * Set the non stroking color, specified as grayscale, 0-255.
- *
- * @param g The gray value.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setNonStrokingColor( int g ) throws IOException
- {
- appendRawCommands( formatDecimal.format( g/255d ) );
- appendRawCommands( SPACE );
- appendRawCommands( G_NON_STROKING );
- }
-
- /**
- * Set the non stroking color, specified as Grayscale 0.0-1.0.
- *
- * @param g The gray value.
- * @throws IOException If an IO error occurs while writing to the stream.
- */
- public void setNonStrokingColor( double g ) throws IOException
- {
- appendRawCommands( formatDecimal.format( g ) );
- appendRawCommands( SPACE );
- appendRawCommands( G_NON_STROKING );
- }
-
- /**
- * Draw a rectangle on the page using the current non stroking color.
- *
- * @param x The lower left x coordinate.
- * @param y The lower left y coordinate.
- * @param width The width of the rectangle.
- * @param height The height of the rectangle.
- * @throws IOException If there is an error while drawing on the screen.
- */
- public void fillRect( float x, float y, float width, float height ) throws IOException
- {
- appendRawCommands( formatDecimal.format( x ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( y ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( width ) );
- appendRawCommands( SPACE );
- appendRawCommands( formatDecimal.format( height ) );
- appendRawCommands( SPACE );
- appendRawCommands( APPEND_RECTANGLE );
- appendRawCommands( FILL );
- }
-
-
- /**
- * This will append raw commands to the content stream.
- *
- * @param commands The commands to append to the stream.
- * @throws IOException If an error occurs while writing to the stream.
- */
- public void appendRawCommands( String commands ) throws IOException
- {
- appendRawCommands( commands.getBytes( "ISO-8859-1" ) );
- }
-
- /**
- * This will append raw commands to the content stream.
- *
- * @param commands The commands to append to the stream.
- * @throws IOException If an error occurs while writing to the stream.
- */
- public void appendRawCommands( byte[] commands ) throws IOException
- {
- output.write( commands );
- }
-
- /**
- * This will append raw commands to the content stream.
- *
- * @param data Append a raw byte to the stream.
- *
- * @throws IOException If an error occurs while writing to the stream.
- */
- public void appendRawCommands( int data ) throws IOException
- {
- output.write( data );
- }
-
- /**
- * Close the content stream. This must be called when you are done with this
- * object.
- * @throws IOException If the underlying stream has a problem being written to.
- */
- public void close() throws IOException
- {
- output.close();
- }
-}
\ No newline at end of file |