/*
* Copyright 2012 MoonJava LTDA.
*
* 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 br.com.moonjava.flight.view.passagem;
/**
* @version 1.0 Sep 7, 2012
* @contact tiago.aguiar@moonjava.com.br
*
*/
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextLayout;
import java.awt.geom.Point2D;
import java.awt.print.Book;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.io.BufferedReader;
import java.io.FileReader;
import java.text.AttributedCharacterIterator;
import java.text.AttributedString;
/**
* Using JAVA to print simple <span class="IL_AD" id="IL_AD2">text file</span>
* to a printer
*/
public class PrintFileToPrinter implements Printable {
public static AttributedString myStyledText = null;
/**
* This method reads the content of a text file. The location of the file is
* provided in the <span class="IL_AD" id="IL_AD9">parameter</span>
*/
public static String readContentFromFileToPrint(String fileName) {
String dataToPrint = "";
try {
BufferedReader input = new BufferedReader(new FileReader(fileName));
String line = "";
/** Read the file and populate the data **/
while ((line = input.readLine()) != null) {
dataToPrint += line + "\n";
}
} catch (Exception e) {
return dataToPrint;
}
return dataToPrint;
}
/**
* Printing the data to a printer. Initialization done in this method.
*/
public static void printToPrinter() {
/**
* Get a Printer Job
*/
PrinterJob printerJob = PrinterJob.getPrinterJob();
/**
* Create a book. A book contains a pair of page painters called printables.
* Also you have different pageformats.
*/
Book book = new Book();
/**
* Append the Printable Object (this one itself, as it implements a
* printable interface) and the page format.
*/
book.append(new PrintFileToPrinter(), new PageFormat());
/**
* Set the object to be printed (the Book) into the PrinterJob. Doing this
* before bringing up the print dialog allows the print dialog to correctly
* display the page range to be printed and to dissallow any print settings
* not appropriate for the pages to be printed.
*/
printerJob.setPageable(book);
/**
* Calling the printDialog will pop up the Printing Dialog. If you want to
* print without user confirmation, you can directly call printerJob.print()
*
* doPrint will be false, if the user cancels the print operation.
*/
boolean doPrint = printerJob.printDialog();
if (doPrint) {
try {
printerJob.print();
} catch (PrinterException ex) {
System.err.println("Error occurred while trying to Print: "
+ ex);
}
}
}
/**
* This method comes from the Printable interface. The method implementation
* in this class <span class="IL_AD" id="IL_AD11">prints</span> a page of
* text.
*/
@Override
public int print(Graphics g, PageFormat format, int pageIndex) {
Graphics2D graphics2d = (Graphics2D) g;
/**
* Move the origin from the corner of the Paper to the corner of the
* imageable area.
*/
graphics2d.translate(format.getImageableX(), format.getImageableY());
/** Setting the text color **/
graphics2d.setPaint(Color.black);
/**
* Use a LineBreakMeasurer instance to break our text into lines that fit
* the imageable area of the page.
*/
Point2D.Float pen = new Point2D.Float();
AttributedCharacterIterator charIterator = myStyledText.getIterator();
LineBreakMeasurer measurer = new LineBreakMeasurer(charIterator,
graphics2d.getFontRenderContext());
float wrappingWidth = (float) format.getImageableWidth();
while (measurer.getPosition() == charIterator.getEndIndex()) {
TextLayout layout = measurer.nextLayout(wrappingWidth);
pen.y += layout.getAscent();
float dx = layout.isLeftToRight() ? 0 : (wrappingWidth - layout
.getAdvance());
layout.draw(graphics2d, pen.x + dx, pen.y);
pen.y += layout.getDescent() + layout.getLeading();
}
return Printable.PAGE_EXISTS;
}
}