org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotationLink Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of pdfbox Show documentation
Show all versions of pdfbox Show documentation
The Apache PDFBox library is an open source Java tool for working with PDF documents.
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.pdfbox.pdmodel.interactive.annotation;
import java.io.IOException;
import org.apache.pdfbox.cos.COSArray;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.pdmodel.interactive.action.PDActionFactory;
import org.apache.pdfbox.pdmodel.interactive.action.type.PDAction;
import org.apache.pdfbox.pdmodel.interactive.action.type.PDActionURI;
import org.apache.pdfbox.pdmodel.interactive.documentnavigation.destination.PDDestination;
/**
* This is the class that represents a link annotation.
*
* @author Ben Litchfield
* @author Paul King
* @version $Revision: 1.3 $
*/
public class PDAnnotationLink extends PDAnnotation
{
/**
* Constant values of the Text as defined in the PDF 1.6 reference Table 8.19.
*/
public static final String HIGHLIGHT_MODE_NONE = "N";
/**
* Constant values of the Text as defined in the PDF 1.6 reference Table 8.19.
*/
public static final String HIGHLIGHT_MODE_INVERT = "I";
/**
* Constant values of the Text as defined in the PDF 1.6 reference Table 8.19.
*/
public static final String HIGHLIGHT_MODE_OUTLINE = "O";
/**
* Constant values of the Text as defined in the PDF 1.6 reference Table 8.19.
*/
public static final String HIGHLIGHT_MODE_PUSH = "P";
/**
* The type of annotation.
*/
public static final String SUB_TYPE = "Link";
/**
* Constructor.
*/
public PDAnnotationLink()
{
super();
getDictionary().setItem( COSName.SUBTYPE, COSName.getPDFName( SUB_TYPE ) );
}
/**
* Creates a Link annotation from a COSDictionary, expected to be
* a correct object definition.
*
* @param field the PDF objet to represent as a field.
*/
public PDAnnotationLink(COSDictionary field)
{
super( field );
}
/**
* Get the action to be performed when this annotation is to be activated. Either this or the
* destination entry should be set, but not both.
*
* @return The action to be performed when this annotation is activated.
*/
public PDAction getAction()
{
COSDictionary action = (COSDictionary)
this.getDictionary().getDictionaryObject( COSName.A );
return PDActionFactory.createAction( action );
}
/**
* Set the annotation action. Either this or the destination entry should be set, but not both.
*
* @param action The annotation action.
*
*/
public void setAction( PDAction action )
{
this.getDictionary().setItem( COSName.A, action );
}
/**
* This will set the border style dictionary, specifying the width and dash
* pattern used in drawing the line.
*
* @param bs the border style dictionary to set.
*
*/
public void setBorderStyle( PDBorderStyleDictionary bs )
{
this.getDictionary().setItem(COSName.BS, bs);
}
/**
* This will retrieve the border style dictionary, specifying the width and
* dash pattern used in drawing the line.
*
* @return the border style dictionary.
*/
public PDBorderStyleDictionary getBorderStyle()
{
COSBase bs = this.getDictionary().getDictionaryObject(COSName.BS);
if (bs instanceof COSDictionary)
{
return new PDBorderStyleDictionary((COSDictionary) bs);
}
else
{
return null;
}
}
/**
* Get the destination to be displayed when the annotation is activated. Either this or the
* action entry should be set, but not both.
*
* @return The destination for this annotation.
*
* @throws IOException If there is an error creating the destination.
*/
public PDDestination getDestination() throws IOException
{
COSBase base = getDictionary().getDictionaryObject( COSName.DEST );
PDDestination retval = PDDestination.create( base );
return retval;
}
/**
* The new destination value. Either this or the action entry should be set, but not both.
*
* @param dest The updated destination.
*/
public void setDestination( PDDestination dest )
{
getDictionary().setItem( COSName.DEST, dest );
}
/**
* Set the highlight mode for when the mouse is depressed.
* See the HIGHLIGHT_MODE_XXX constants.
*
* @return The string representation of the highlight mode.
*/
public String getHighlightMode()
{
return getDictionary().getNameAsString( COSName.H, HIGHLIGHT_MODE_INVERT );
}
/**
* Set the highlight mode. See the HIGHLIGHT_MODE_XXX constants.
*
* @param mode The new highlight mode.
*/
public void setHighlightMode( String mode )
{
getDictionary().setName( COSName.H, mode );
}
/**
* This will set the previous URI action, in case it
* needs to be retrieved at later date.
*
* @param pa The previous URI.
*/
public void setPreviousURI( PDActionURI pa )
{
getDictionary().setItem( "PA", pa );
}
/**
* This will set the previous URI action, in case it's
* needed.
*
* @return The previous URI.
*/
public PDActionURI getPreviousURI()
{
COSDictionary pa = (COSDictionary) getDictionary().getDictionaryObject("PA");
if ( pa != null )
{
return new PDActionURI( pa );
}
else
{
return null;
}
}
/**
* This will set the set of quadpoints which encompass the areas of this
* annotation which will activate.
*
* @param quadPoints
* an array representing the set of area covered.
*/
public void setQuadPoints( float[] quadPoints )
{
COSArray newQuadPoints = new COSArray();
newQuadPoints.setFloatArray( quadPoints );
getDictionary().setItem( "QuadPoints", newQuadPoints );
}
/**
* This will retrieve the set of quadpoints which encompass the areas of
* this annotation which will activate.
*
* @return An array of floats representing the quad points.
*/
public float[] getQuadPoints()
{
COSArray quadPoints = (COSArray) getDictionary().getDictionaryObject( "QuadPoints" );
if (quadPoints != null)
{
return quadPoints.toFloatArray();
}
else
{
return null; // Should never happen as this is a required item
}
}
}