org.apache.pdfbox.pdmodel.interactive.form.PDRadioButton 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.form;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
/**
* Radio button fields contain a set of related buttons that can each be on or off.
*
* @author sug
*/
public final class PDRadioButton extends PDButton
{
/**
* A Ff flag.
*/
private static final int FLAG_NO_TOGGLE_TO_OFF = 1 << 14;
/**
* @see PDField#PDField(PDAcroForm)
*
* @param acroForm The acroform.
*/
public PDRadioButton(PDAcroForm acroForm)
{
super(acroForm);
setRadioButton(true);
}
/**
* Constructor.
*
* @param acroForm The form that this field is part of.
* @param field the PDF object to represent as a field.
* @param parent the parent node of the node
*/
PDRadioButton(PDAcroForm acroForm, COSDictionary field, PDNonTerminalField parent)
{
super(acroForm, field, parent);
}
/**
* From the PDF Spec
* If set, a group of radio buttons within a radio button field that use the same value for the on state will turn
* on and off in unison; that is if one is checked, they are all checked. If clear, the buttons are mutually
* exclusive (the same behavior as HTML radio buttons).
*
* @param radiosInUnison The new flag for radiosInUnison.
*/
public void setRadiosInUnison(boolean radiosInUnison)
{
getCOSObject().setFlag(COSName.FF, FLAG_RADIOS_IN_UNISON, radiosInUnison);
}
/**
*
* @return true If the flag is set for radios in unison.
*/
public boolean isRadiosInUnison()
{
return getCOSObject().getFlag(COSName.FF, FLAG_RADIOS_IN_UNISON);
}
/**
* This will get the selected export values.
*
* A RadioButton might have an export value to allow field values
* which can not be encoded as PDFDocEncoding or for the same export value
* being assigned to multiple RadioButtons in a group.
* To define an export value the RadioButton must define options {@link #setExportValues(List)}
* which correspond to the individual items within the RadioButton.
*
* The method will either return the corresponding values from the options entry or in case there
* is no such entry the fields value
*
* @return the export value of the field.
* @throws IOException in case the fields value can not be retrieved
*/
public List getSelectedExportValues() throws IOException
{
Set onValues = getOnValues();
List exportValues = getExportValues();
List selectedExportValues = new ArrayList();
if (exportValues.isEmpty())
{
selectedExportValues.add(getValue());
return selectedExportValues;
}
else
{
String fieldValue = getValue();
int idx = 0;
for (String onValue : onValues)
{
if (onValue.compareTo(fieldValue) == 0)
{
selectedExportValues.add(exportValues.get(idx));
}
}
return selectedExportValues;
}
}
}