org.apache.pdfbox.pdmodel.interactive.form.PDComboBox 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.io.IOException;
import java.util.List;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
/**
* A combo box consisting of a drop-down list.
* May be accompanied by an editable text box in which non-predefined values may be entered.
*
* @author John Hewson
*/
public final class PDComboBox extends PDChoice
{
private static final int FLAG_EDIT = 1 << 18;
/**
* @see PDField#PDField(PDAcroForm)
*
* @param acroForm The acroform.
*/
public PDComboBox(PDAcroForm acroForm)
{
super(acroForm);
setCombo(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
*/
PDComboBox(PDAcroForm acroForm, COSDictionary field, PDNonTerminalField parent)
{
super(acroForm, field, parent);
}
/**
* Determines if Edit is set.
*
* @return true if the combo box shall include an editable text box as well as a drop-down list.
*/
public boolean isEdit()
{
return getCOSObject().getFlag(COSName.FF, FLAG_EDIT);
}
/**
* Set the Edit bit.
*
* @param edit The value for Edit.
*/
public void setEdit(boolean edit)
{
getCOSObject().setFlag(COSName.FF, FLAG_EDIT, edit);
}
@Override
void constructAppearances() throws IOException
{
AppearanceGeneratorHelper apHelper;
apHelper = new AppearanceGeneratorHelper(this);
List values = getValue();
if (!values.isEmpty())
{
apHelper.setAppearanceValue(values.get(0));
}
else
{
apHelper.setAppearanceValue("");
}
}
}