org.apache.pdfbox.pdmodel.interactive.annotation.handlers.AnnotationBorder Maven / Gradle / Ivy
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The Apache PDFBox library is an open source Java tool for working with PDF documents.
/*
* Copyright 2018 The Apache Software Foundation.
*
* Licensed 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.handlers;
import org.apache.pdfbox.cos.COSArray;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSNumber;
import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotation;
import org.apache.pdfbox.pdmodel.interactive.annotation.PDBorderStyleDictionary;
/**
* Class to collect all sort of border info about annotations.
*
* @author Tilman Hausherr
*/
class AnnotationBorder
{
float[] dashArray = null;
boolean underline = false;
float width = 0;
// return border info. BorderStyle must be provided as parameter because
// method is not available in the base class
static AnnotationBorder getAnnotationBorder(PDAnnotation annotation,
PDBorderStyleDictionary borderStyle)
{
AnnotationBorder ab = new AnnotationBorder();
if (borderStyle == null)
{
COSArray border = annotation.getBorder();
if (border.size() >= 3 && border.getObject(2) instanceof COSNumber)
{
ab.width = ((COSNumber) border.getObject(2)).floatValue();
}
if (border.size() > 3)
{
COSBase base3 = border.getObject(3);
if (base3 instanceof COSArray)
{
ab.dashArray = ((COSArray) base3).toFloatArray();
}
}
}
else
{
ab.width = borderStyle.getWidth();
if (borderStyle.getStyle().equals(PDBorderStyleDictionary.STYLE_DASHED))
{
ab.dashArray = borderStyle.getDashStyle().getDashArray();
}
if (borderStyle.getStyle().equals(PDBorderStyleDictionary.STYLE_UNDERLINE))
{
ab.underline = true;
}
}
if (ab.dashArray != null)
{
boolean allZero = true;
for (float f : ab.dashArray)
{
if (Float.compare(f, 0) != 0)
{
allZero = false;
break;
}
}
if (allZero)
{
ab.dashArray = null;
}
}
return ab;
}
}