org.apache.pdfbox.pdmodel.interactive.form.PDPushButton Maven / Gradle / Ivy
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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.util.Collections;
import java.util.List;
import org.apache.pdfbox.cos.COSDictionary;
/**
* A pushbutton is a purely interactive control that responds immediately to user
* input without retaining a permanent value.
*
* @author sug
*/
public class PDPushButton extends PDButton
{
/**
* @see PDField#PDField(PDAcroForm)
*
* @param acroForm The acroform.
*/
public PDPushButton(PDAcroForm acroForm)
{
super(acroForm);
setPushButton(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
*/
PDPushButton(PDAcroForm acroForm, COSDictionary field, PDNonTerminalField parent)
{
super(acroForm, field, parent);
}
@Override
public List getExportValues()
{
return Collections.emptyList();
}
@Override
public void setExportValues(List values)
{
if (values != null && !values.isEmpty())
{
throw new IllegalArgumentException("A PDPushButton shall not use the Opt entry in the field dictionary");
}
}
@Override
public String getValue()
{
return "";
}
@Override
public String getDefaultValue()
{
return "";
}
@Override
public String getValueAsString()
{
return getValue();
}
}