1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/JavaSingleImageResizer.java Mon Nov 17 21:59:20 2014 +0100
1.3 @@ -0,0 +1,127 @@
1.4 +/**
1.5 + * copy-image-resizer
1.6 + * Copyright © 2014 František Kučera (frantovo.cz)
1.7 + *
1.8 + * This program is free software: you can redistribute it and/or modify
1.9 + * it under the terms of the GNU General Public License as published by
1.10 + * the Free Software Foundation, either version 3 of the License, or
1.11 + * (at your option) any later version.
1.12 + *
1.13 + * This program is distributed in the hope that it will be useful,
1.14 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.15 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.16 + * GNU General Public License for more details.
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License
1.19 + * along with this program. If not, see <http://www.gnu.org/licenses/>.
1.20 + */
1.21 +package cz.frantovo.copyImageResizer;
1.22 +
1.23 +import java.awt.Graphics2D;
1.24 +import java.awt.image.BufferedImage;
1.25 +import java.io.IOException;
1.26 +import java.io.InputStream;
1.27 +import java.io.OutputStream;
1.28 +import java.util.logging.Level;
1.29 +import java.util.logging.Logger;
1.30 +import java.util.regex.Pattern;
1.31 +import javax.imageio.ImageIO;
1.32 +
1.33 +/**
1.34 + *
1.35 + * @author Ing. František Kučera (frantovo.cz)
1.36 + */
1.37 +public class JavaSingleImageResizer implements SingleImageResizer {
1.38 +
1.39 + private static final Logger log = Logger.getLogger(SingleImageResizer.class.getName());
1.40 +
1.41 + @Override
1.42 + public boolean resize(InputStream input, OutputStream output, SizeSpecification size, ImageFormat outputFormat) throws ResizeException {
1.43 + try {
1.44 + BufferedImage image = readImage(input);
1.45 + if (shouldResize(image, size)) {
1.46 + BufferedImage resized = resize(image, size.getWidth(), size.getHeight(), image.getType());
1.47 + ImageIO.write(resized, outputFormat.getFormat(), output);
1.48 + return true;
1.49 + } else {
1.50 + return false;
1.51 + }
1.52 + } catch (IOException e) {
1.53 + throw new ResizeException("Error while resizing image", e);
1.54 + }
1.55 + }
1.56 +
1.57 + private BufferedImage resize(BufferedImage original, int maxWidth, int maxHeight, int type) {
1.58 +
1.59 + int width;
1.60 + int height;
1.61 + float aspectRatio = (float) original.getWidth() / (float) original.getHeight();
1.62 +
1.63 + if (aspectRatio > 1) {
1.64 + width = maxWidth;
1.65 + height = Math.max(Math.round(maxWidth / aspectRatio), 1);
1.66 + } else {
1.67 + width = Math.max(Math.round(maxHeight * aspectRatio), 1);
1.68 + height = maxHeight;
1.69 + }
1.70 +
1.71 + if (type == BufferedImage.TYPE_CUSTOM) {
1.72 + log.log(Level.FINER, "Setting default image type: from TYPE_CUSTOM to TYPE_INT_ARGB");
1.73 + type = BufferedImage.TYPE_INT_ARGB;
1.74 + }
1.75 +
1.76 + BufferedImage resized = new BufferedImage(width, height, type);
1.77 + Graphics2D g = resized.createGraphics();
1.78 + g.drawImage(original, 0, 0, width, height, null);
1.79 + g.dispose();
1.80 +
1.81 + return resized;
1.82 + }
1.83 +
1.84 + private static BufferedImage readImage(InputStream input) throws ResizeException {
1.85 + try {
1.86 + return ImageIO.read(input);
1.87 + } catch (IOException e) {
1.88 + throw new ResizeException("Unable to read image from stream", e);
1.89 + }
1.90 + }
1.91 +
1.92 + private static boolean shouldResize(BufferedImage input, SizeSpecification requested) {
1.93 + if (requested.isResizeSmaller()) {
1.94 + return input.getHeight() != requested.getHeight() || input.getWidth() != requested.getWidth();
1.95 + } else {
1.96 + return input.getHeight() > requested.getHeight() || input.getWidth() > requested.getWidth();
1.97 + }
1.98 + }
1.99 +
1.100 + public static enum ImageFormat {
1.101 +
1.102 + JPEG("jpg", Pattern.compile(".*\\.(jpg|jpeg)$", Pattern.CASE_INSENSITIVE)),
1.103 + PNG("png", Pattern.compile(".*\\.png$", Pattern.CASE_INSENSITIVE)),
1.104 + GIF("gif", Pattern.compile(".*\\.gif$", Pattern.CASE_INSENSITIVE));
1.105 +
1.106 + private final String format;
1.107 + private final Pattern regex;
1.108 +
1.109 + private ImageFormat(String format, Pattern regex) {
1.110 + this.format = format;
1.111 + this.regex = regex;
1.112 + }
1.113 +
1.114 + /**
1.115 + * @return format name for {@linkplain ImageIO#write(java.awt.image.RenderedImage, java.lang.String, java.io.File)
1.116 + */
1.117 + public String getFormat() {
1.118 + return format;
1.119 + }
1.120 +
1.121 + public static ImageFormat getMatching(String fileName) {
1.122 + for (ImageFormat type : values()) {
1.123 + if (type.regex.matcher(fileName).matches()) {
1.124 + return type;
1.125 + }
1.126 + }
1.127 + return null;
1.128 + }
1.129 + }
1.130 +}
2.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
2.2 +++ b/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/NativeSingleImageResizer.java Mon Nov 17 21:59:20 2014 +0100
2.3 @@ -0,0 +1,39 @@
2.4 +/**
2.5 + * copy-image-resizer
2.6 + * Copyright © 2014 František Kučera (frantovo.cz)
2.7 + *
2.8 + * This program is free software: you can redistribute it and/or modify
2.9 + * it under the terms of the GNU General Public License as published by
2.10 + * the Free Software Foundation, either version 3 of the License, or
2.11 + * (at your option) any later version.
2.12 + *
2.13 + * This program is distributed in the hope that it will be useful,
2.14 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
2.15 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2.16 + * GNU General Public License for more details.
2.17 + *
2.18 + * You should have received a copy of the GNU General Public License
2.19 + * along with this program. If not, see <http://www.gnu.org/licenses/>.
2.20 + */
2.21 +package cz.frantovo.copyImageResizer;
2.22 +
2.23 +import java.io.InputStream;
2.24 +import java.io.OutputStream;
2.25 +
2.26 +/**
2.27 + *
2.28 + * @author Ing. František Kučera (frantovo.cz)
2.29 + */
2.30 +public class NativeSingleImageResizer implements SingleImageResizer{
2.31 +
2.32 + @Override
2.33 + public boolean resize(InputStream input, OutputStream output, SizeSpecification size, JavaSingleImageResizer.ImageFormat outputFormat) throws ResizeException {
2.34 + /**
2.35 + * TODO: call native tool like convert from ImageMagick
2.36 + */
2.37 + throw new UnsupportedOperationException("Not implemented yet.");
2.38 + }
2.39 +
2.40 +
2.41 +
2.42 +}
3.1 --- a/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/RecursiveImageResizer.java Mon Nov 17 21:58:52 2014 +0100
3.2 +++ b/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/RecursiveImageResizer.java Mon Nov 17 21:59:20 2014 +0100
3.3 @@ -17,7 +17,7 @@
3.4 */
3.5 package cz.frantovo.copyImageResizer;
3.6
3.7 -import cz.frantovo.copyImageResizer.SingleImageResizer.ImageFormat;
3.8 +import cz.frantovo.copyImageResizer.JavaSingleImageResizer.ImageFormat;
3.9 import java.io.File;
3.10 import java.io.FileInputStream;
3.11 import java.io.FileNotFoundException;
3.12 @@ -38,7 +38,10 @@
3.13
3.14 private final Counters counters = new Counters();
3.15
3.16 - private final SingleImageResizer resizer = new SingleImageResizer();
3.17 + /**
3.18 + * TODO: support plugins – several implementations of SingleImageResizer
3.19 + */
3.20 + private final SingleImageResizer resizer = new JavaSingleImageResizer();
3.21
3.22 private final RecursiveOptions options;
3.23
4.1 --- a/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/SingleImageResizer.java Mon Nov 17 21:58:52 2014 +0100
4.2 +++ b/java/copy-image-resizer/src/cz/frantovo/copyImageResizer/SingleImageResizer.java Mon Nov 17 21:59:20 2014 +0100
4.3 @@ -17,23 +17,14 @@
4.4 */
4.5 package cz.frantovo.copyImageResizer;
4.6
4.7 -import java.awt.Graphics2D;
4.8 -import java.awt.image.BufferedImage;
4.9 -import java.io.IOException;
4.10 import java.io.InputStream;
4.11 import java.io.OutputStream;
4.12 -import java.util.logging.Level;
4.13 -import java.util.logging.Logger;
4.14 -import java.util.regex.Pattern;
4.15 -import javax.imageio.ImageIO;
4.16
4.17 /**
4.18 *
4.19 * @author Ing. František Kučera (frantovo.cz)
4.20 */
4.21 -public class SingleImageResizer {
4.22 -
4.23 - private static final Logger log = Logger.getLogger(SingleImageResizer.class.getName());
4.24 +public interface SingleImageResizer {
4.25
4.26 /**
4.27 *
4.28 @@ -46,92 +37,5 @@
4.29 * }.
4.30 * @throws ResizeException
4.31 */
4.32 - public boolean resize(InputStream input, OutputStream output, SizeSpecification size, ImageFormat outputFormat) throws ResizeException {
4.33 - try {
4.34 - BufferedImage image = readImage(input);
4.35 - if (shouldResize(image, size)) {
4.36 - BufferedImage resized = resize(image, size.getWidth(), size.getHeight(), image.getType());
4.37 - ImageIO.write(resized, outputFormat.getFormat(), output);
4.38 - return true;
4.39 - } else {
4.40 - return false;
4.41 - }
4.42 - } catch (IOException e) {
4.43 - throw new ResizeException("Error while resizing image", e);
4.44 - }
4.45 - }
4.46 -
4.47 - private BufferedImage resize(BufferedImage original, int maxWidth, int maxHeight, int type) {
4.48 -
4.49 - int width;
4.50 - int height;
4.51 - float aspectRatio = (float) original.getWidth() / (float) original.getHeight();
4.52 -
4.53 - if (aspectRatio > 1) {
4.54 - width = maxWidth;
4.55 - height = Math.max(Math.round(maxWidth / aspectRatio), 1);
4.56 - } else {
4.57 - width = Math.max(Math.round(maxHeight * aspectRatio), 1);
4.58 - height = maxHeight;
4.59 - }
4.60 -
4.61 - if (type == BufferedImage.TYPE_CUSTOM) {
4.62 - log.log(Level.FINER, "Setting default image type: from TYPE_CUSTOM to TYPE_INT_ARGB");
4.63 - type = BufferedImage.TYPE_INT_ARGB;
4.64 - }
4.65 -
4.66 - BufferedImage resized = new BufferedImage(width, height, type);
4.67 - Graphics2D g = resized.createGraphics();
4.68 - g.drawImage(original, 0, 0, width, height, null);
4.69 - g.dispose();
4.70 -
4.71 - return resized;
4.72 - }
4.73 -
4.74 - private static BufferedImage readImage(InputStream input) throws ResizeException {
4.75 - try {
4.76 - return ImageIO.read(input);
4.77 - } catch (IOException e) {
4.78 - throw new ResizeException("Unable to read image from stream", e);
4.79 - }
4.80 - }
4.81 -
4.82 - private static boolean shouldResize(BufferedImage input, SizeSpecification requested) {
4.83 - if (requested.isResizeSmaller()) {
4.84 - return input.getHeight() != requested.getHeight() || input.getWidth() != requested.getWidth();
4.85 - } else {
4.86 - return input.getHeight() > requested.getHeight() || input.getWidth() > requested.getWidth();
4.87 - }
4.88 - }
4.89 -
4.90 - public static enum ImageFormat {
4.91 -
4.92 - JPEG("jpg", Pattern.compile(".*\\.(jpg|jpeg)$", Pattern.CASE_INSENSITIVE)),
4.93 - PNG("png", Pattern.compile(".*\\.png$", Pattern.CASE_INSENSITIVE)),
4.94 - GIF("gif", Pattern.compile(".*\\.gif$", Pattern.CASE_INSENSITIVE));
4.95 -
4.96 - private final String format;
4.97 - private final Pattern regex;
4.98 -
4.99 - private ImageFormat(String format, Pattern regex) {
4.100 - this.format = format;
4.101 - this.regex = regex;
4.102 - }
4.103 -
4.104 - /**
4.105 - * @return format name for {@linkplain ImageIO#write(java.awt.image.RenderedImage, java.lang.String, java.io.File)
4.106 - */
4.107 - public String getFormat() {
4.108 - return format;
4.109 - }
4.110 -
4.111 - public static ImageFormat getMatching(String fileName) {
4.112 - for (ImageFormat type : values()) {
4.113 - if (type.regex.matcher(fileName).matches()) {
4.114 - return type;
4.115 - }
4.116 - }
4.117 - return null;
4.118 - }
4.119 - }
4.120 + public boolean resize(InputStream input, OutputStream output, SizeSpecification size, JavaSingleImageResizer.ImageFormat outputFormat) throws ResizeException;
4.121 }