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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2022 TIBCO Software Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see .
*/
package net.sf.jasperreports.export.pdf.classic;
import java.awt.Color;
import java.awt.geom.AffineTransform;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfGState;
import com.lowagie.text.pdf.PdfWriter;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.export.pdf.LineCapStyle;
import net.sf.jasperreports.export.pdf.PdfContent;
/**
*
* @author Lucian Chirita ([email protected])
*/
public class ClassicPdfContent implements PdfContent
{
private PdfWriter pdfWriter;
private PdfContentByte pdfContentByte;
private PdfGState[] fillAlphaStates = new PdfGState[256];
private boolean fillAlphaSet = false;
private PdfGState[] strokeAlphaStates = new PdfGState[256];
private boolean strokeAlphaSet = false;
public ClassicPdfContent(PdfWriter pdfWriter)
{
this.pdfWriter = pdfWriter;
this.pdfContentByte = pdfWriter.getDirectContent();
}
public PdfContentByte getPdfContentByte()
{
return pdfContentByte;
}
public void refreshContent()
{
pdfContentByte = pdfWriter.getDirectContent();
}
@Override
public void setFillColor(Color color)
{
setFillColorAlpha(color.getAlpha());
pdfContentByte.setRGBColorFill(
color.getRed(),
color.getGreen(),
color.getBlue());
}
@Override
public void setFillColorAlpha(int alpha)
{
if (alpha != 255)
{
setFillAlpha(alpha);
fillAlphaSet = true;
}
}
@Override
public void resetFillColor()
{
if (fillAlphaSet)
{
setFillAlpha(255);
fillAlphaSet = false;
}
}
protected void setFillAlpha(int alpha)
{
PdfGState state = fillAlphaStates[alpha];
if (state == null)
{
state = new PdfGState();
state.setFillOpacity(((float) alpha)/255);
fillAlphaStates[alpha] = state;
}
pdfContentByte.setGState(state);
}
@Override
public void setStrokeColor(Color color)
{
int alpha = color.getAlpha();
if (alpha != 255)
{
setStrokeAlpha(alpha);
strokeAlphaSet = true;
}
pdfContentByte.setRGBColorStroke(
color.getRed(),
color.getGreen(),
color.getBlue());
}
@Override
public void resetStrokeColor()
{
if (strokeAlphaSet)
{
setStrokeAlpha(255);
strokeAlphaSet = false;
}
}
protected void setStrokeAlpha(int alpha)
{
PdfGState state = strokeAlphaStates[alpha];
if (state == null)
{
state = new PdfGState();
state.setStrokeOpacity(((float) alpha)/255);
strokeAlphaStates[alpha] = state;
}
pdfContentByte.setGState(state);
}
@Override
public void setLineWidth(float lineWidth)
{
pdfContentByte.setLineWidth(lineWidth);
}
@Override
public void setLineCap(LineCapStyle lineCap)
{
int lineCapValue;
switch (lineCap)
{
case BUTT:
lineCapValue = PdfContentByte.LINE_CAP_BUTT;
break;
case ROUND:
lineCapValue = PdfContentByte.LINE_CAP_ROUND;
break;
case PROJECTING_SQUARE:
lineCapValue = PdfContentByte.LINE_CAP_PROJECTING_SQUARE;
break;
default:
throw new JRRuntimeException("Unknown line cap style " + lineCap);
}
pdfContentByte.setLineCap(lineCapValue);
}
@Override
public void setLineDash(float phase)
{
pdfContentByte.setLineDash(phase);
}
@Override
public void setLineDash(float unitsOn, float unitsOff, float phase)
{
pdfContentByte.setLineDash(unitsOn, unitsOff, phase);
}
@Override
public void strokeLine(float x1, float y1, float x2, float y2)
{
pdfContentByte.moveTo(x1, y1);
pdfContentByte.lineTo(x2, y2);
pdfContentByte.stroke();
}
@Override
public void fillRectangle(float x, float y, float width, float height)
{
pdfContentByte.rectangle(x, y, width, height);
pdfContentByte.fill();
}
@Override
public void fillRoundRectangle(float x, float y, float width, float height, float radius)
{
pdfContentByte.roundRectangle(x, y, width, height, radius);
pdfContentByte.fill();
}
@Override
public void strokeRoundRectangle(float x, float y, float width, float height, float radius)
{
pdfContentByte.roundRectangle(x, y, width, height, radius);
pdfContentByte.stroke();
}
@Override
public void fillEllipse(float x1, float y1, float x2, float y2)
{
pdfContentByte.ellipse(x1, y1, x2, y2);
pdfContentByte.fill();
}
@Override
public void strokeEllipse(float x1, float y1, float x2, float y2)
{
pdfContentByte.ellipse(x1, y1, x2, y2);
pdfContentByte.stroke();
}
@Override
public void setLiteral(String string)
{
pdfContentByte.setLiteral(string);
}
@Override
public void transform(AffineTransform atrans)
{
pdfContentByte.transform(atrans);
}
}