/*
* 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.examples.pdmodel;
import java.io.IOException;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.common.PDRectangle;
import org.apache.pdfbox.pdmodel.edit.PDPageContentStream;
import org.apache.pdfbox.pdmodel.font.PDFont;
import org.apache.pdfbox.pdmodel.font.PDType1Font;
/**
* This is an example of how to use a text matrix.
* @version $Revision: 1.0 $
*/
public class UsingTextMatrix
{
/**
* Constructor.
*/
public UsingTextMatrix()
{
super();
}
/**
* creates a sample document with some text using a text matrix.
*
* @param message The message to write in the file.
* @param outfile The resulting PDF.
*
* @throws IOException If there is an error writing the data.
*/
public void doIt( String message, String outfile ) throws IOException
{
// the document
PDDocument doc = null;
try
{
doc = new PDDocument();
// Page 1
PDFont font = PDType1Font.HELVETICA;
PDPage page = new PDPage(PDRectangle.A4);
doc.addPage(page);
float fontSize = 12.0f;
PDRectangle pageSize = page.getMediaBox();
float centeredXPosition = (pageSize.getWidth() - fontSize/1000f)/2f;
float stringWidth = font.getStringWidth( message );
float centeredYPosition = (pageSize.getHeight() - (stringWidth*fontSize)/1000f)/3f;
PDPageContentStream contentStream = new PDPageContentStream(doc, page, false, false);
contentStream.setFont( font, fontSize );
contentStream.beginText();
// counterclockwise rotation
for (int i=0;i<8;i++)
{
contentStream.setTextRotation(i*Math.PI*0.25, centeredXPosition,
pageSize.getHeight()-centeredYPosition);
contentStream.drawString( message + " " + i);
}
// clockwise rotation
for (int i=0;i<8;i++)
{
contentStream.setTextRotation(-i*Math.PI*0.25, centeredXPosition, centeredYPosition);
contentStream.drawString( message + " " + i);
}
contentStream.endText();
contentStream.close();
// Page 2
page = new PDPage(PDRectangle.A4);
doc.addPage(page);
fontSize = 1.0f;
contentStream = new PDPageContentStream(doc, page, false, false);
contentStream.setFont( font, fontSize );
contentStream.beginText();
// text scaling
for (int i=0;i<10;i++)
{
contentStream.setTextScaling(12+(i*6), 12+(i*6), 100, 100+i*50);
contentStream.drawString( message + " " +i);
}
contentStream.endText();
contentStream.close();
// Page 3
page = new PDPage(PDRectangle.A4);
doc.addPage(page);
fontSize = 1.0f;
contentStream = new PDPageContentStream(doc, page, false, false);
contentStream.setFont( font, fontSize );
contentStream.beginText();
int i = 0;
// text scaling combined with rotation
contentStream.setTextMatrix(12, 0, 0, 12, centeredXPosition, centeredYPosition*1.5);
contentStream.drawString( message + " " +i++);
contentStream.setTextMatrix(0, 18, -18, 0, centeredXPosition, centeredYPosition*1.5);
contentStream.drawString( message + " " +i++);
contentStream.setTextMatrix(-24, 0, 0, -24, centeredXPosition, centeredYPosition*1.5);
contentStream.drawString( message + " " +i++);
contentStream.setTextMatrix(0, -30, 30, 0, centeredXPosition, centeredYPosition*1.5);
contentStream.drawString( message + " " +i++);
contentStream.endText();
contentStream.close();
doc.save( outfile );
}
finally
{
if( doc != null )
{
doc.close();
}
}
}
/**
* This will create a PDF document with some examples how to use a text matrix.
*
* @param args Command line arguments.
*/
public static void main(String[] args) throws IOException
{
UsingTextMatrix app = new UsingTextMatrix();
if( args.length != 2 )
{
app.usage();
}
else
{
app.doIt( args[0], args[1] );
}
}
/**
* This will print out a message telling how to use this example.
*/
private void usage()
{
System.err.println( "usage: " + this.getClass().getName() + " <Message> <output-file>" );
}
}