package br.com.caelum.tubaina.util;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.imageio.ImageIO;
import javax.imageio.stream.ImageOutputStream;
import org.apache.commons.io.FilenameUtils;
import org.apache.log4j.Logger;
import br.com.caelum.tubaina.TubainaException;
public class Utilities {
private static final Logger LOG = Logger.getLogger(Utilities.class);
public static void getImageWithLogo(final File srcImage, final ImageOutputStream destinationImage,
final String format, final File logo) {
try {
BufferedImage image = ImageIO.read(srcImage);
BufferedImage image2 = ImageIO.read(logo);
int w = image2.getWidth();
int h = image2.getHeight();
if ((w < 1.5 * image.getWidth()) || (h < 1.5 * image.getHeight())) {
return;
}
int rectangleWidth = Math.min(image.getWidth(), w);
int rectangleHeigth = Math.min(image.getHeight(), h);
Graphics2D graphics = image.createGraphics();
graphics.drawImage(image2, image.getWidth() - w, image.getHeight() - h, rectangleWidth, rectangleHeigth,
null);
graphics.dispose();
ImageIO.write(image, format, destinationImage);
} catch (IOException e) {
LOG.warn("Unable to add the logo to image: '" + destinationImage.toString());
}
}
public static String getFormatName(final File srcImage) {
return FilenameUtils.getExtension(srcImage.getPath()).toUpperCase();
}
public static int getImageWidth(final File srcImage) {
try {
BufferedImage src = ImageIO.read(srcImage);
return src.getWidth();
} catch (IOException e) {
LOG.warn("Couldn't get image width for: " + srcImage.getPath());
throw new TubainaException("Couldn't get image width");
}
}
public static void resizeImage(final File srcImg, final ImageOutputStream destImg, final String format,
final int pageWidth, final double ratio) {
if (ratio <= 0 || ratio > 1) {
throw new IllegalArgumentException("Ratio must be between 0 and 1");
}
try {
BufferedImage src = ImageIO.read(srcImg);
double newRatio = (pageWidth * ratio) / src.getWidth();
int width = (int) (newRatio * src.getWidth());
int height = (int) (newRatio * src.getHeight());
BufferedImage dest = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
Graphics2D graphics = dest.createGraphics();
graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
AffineTransform transform = AffineTransform.getScaleInstance(newRatio, newRatio);
graphics.drawRenderedImage(src, transform);
ImageIO.write(dest, format, destImg);
} catch (IOException e) {
LOG.warn("Unable to resize image: '" + destImg.toString());
}
}
public static int getMinIndent(final String string) {
int min = Integer.MAX_VALUE;
for (String s : string.split("\n")) {
Pattern p = Pattern.compile("\\S");
Matcher m = p.matcher(s);
if (m.find() && m.start() < min) {
min = m.start();
}
}
return min;
}
public static int maxLineLength(final String string) {
int max = 0;
for (String s : string.split("\n")) {
if (s.length() > max) {
max = s.length();
}
}
return max;
}
public String getFileType(final String fileName) {
int index = fileName.length() - 1;
while (index >= 0) {
if (fileName.charAt(index) == '.') {
return fileName.substring(index + 1).toLowerCase();
}
index--;
}
return null;
}
/**
* To replace accented characters in a String by unaccented equivalents.
* From org.apache.lucene.analysis.ISOLatin1AccentFilter, changed for UTF8
* support
*/
public final static String removeAccents(final String input) {
final StringBuffer output = new StringBuffer();
for (int i = 0; i < input.length(); i++) {
switch (input.charAt(i)) {
case '\u00C0': // À
case '\u00C1': // Á
case '\u00C2': // Â
case '\u00C3': // Ã
case '\u00C4': // Ä
case '\u00C5': // Å
output.append("A");
break;
case '\u00C6': // Æ
output.append("AE");
break;
case '\u00C7': // Ç
output.append("C");
break;
case '\u00C8': // È
case '\u00C9': // É
case '\u00CA': // Ê
case '\u00CB': // Ë
output.append("E");
break;
case '\u00CC': // Ì
case '\u00CD': // Í
case '\u00CE': // Î
case '\u00CF': // Ï
output.append("I");
break;
case '\u00D0': // Ð
output.append("D");
break;
case '\u00D1': // Ñ
output.append("N");
break;
case '\u00D2': // Ò
case '\u00D3': // Ó
case '\u00D4': // Ô
case '\u00D5': // Õ
case '\u00D6': // Ö
case '\u00D8': // Ø
output.append("O");
break;
case '\u0152': // Œ
output.append("OE");
break;
case '\u00DE': // Þ
output.append("TH");
break;
case '\u00D9': // Ù
case '\u00DA': // Ú
case '\u00DB': // Û
case '\u00DC': // Ü
output.append("U");
break;
case '\u00DD': // Ý
case '\u0178': // Ÿ
output.append("Y");
break;
case '\u00E0': // à
case '\u00E1': // á
case '\u00E2': // â
case '\u00E3': // ã
case '\u00E4': // ä
case '\u00E5': // å
output.append("a");
break;
case '\u00E6': // æ
output.append("ae");
break;
case '\u00E7': // ç
output.append("c");
break;
case '\u00E8': // è
case '\u00E9': // é
case '\u00EA': // ê
case '\u00EB': // ë
output.append("e");
break;
case '\u00EC': // ì
case '\u00ED': // í
case '\u00EE': // î
case '\u00EF': // ï
output.append("i");
break;
case '\u00F0': // ð
output.append("d");
break;
case '\u00F1': // ñ
output.append("n");
break;
case '\u00F2': // ò
case '\u00F3': // ó
case '\u00F4': // ô
case '\u00F5': // õ
case '\u00F6': // ö
case '\u00F8': // ø
output.append("o");
break;
case '\u0153': // œ
output.append("oe");
break;
case '\u00DF': // ß
output.append("ss");
break;
case '\u00FE': // þ
output.append("th");
break;
case '\u00F9': // ù
case '\u00FA': // ú
case '\u00FB': // û
case '\u00FC': // ü
output.append("u");
break;
case '\u00FD': // ý
case '\u00FF': // ÿ
output.append("y");
break;
default:
output.append(input.charAt(i));
break;
}
}
return output.toString();
}
public static String toDirectoryName(final Integer num, String title) {
// The pattern must accept any char except for digits or numbers
Pattern pattern = Pattern.compile("(?i)(?s)(\\W)+");
title = title.toLowerCase();
title = Utilities.removeAccents(title);
Matcher matcher = pattern.matcher(title);
title = matcher.replaceAll("-");
title = title.replaceFirst("-$", "");
title = title.replaceFirst("^-", "");
if (num != null) {
return String.format("%02d-%s", num, title);
}
return title;
}
}