+++ /dev/null
-package be.nikiroo.utils.ui;
-
-import java.awt.geom.AffineTransform;
-import java.awt.image.AffineTransformOp;
-import java.awt.image.BufferedImage;
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
-
-import javax.imageio.ImageIO;
-
-import be.nikiroo.utils.Image;
-import be.nikiroo.utils.ImageUtils;
-import be.nikiroo.utils.StringUtils;
-
-/**
- * This class offer some utilities based around images and uses java.awt.
- *
- * @author niki
- */
-public class ImageUtilsAwt extends ImageUtils {
- @Override
- protected boolean check() {
- // Will not work if ImageIO is not available
- ImageIO.getCacheDirectory();
- return true;
- }
-
- @Override
- public void saveAsImage(Image img, File target, String format)
- throws IOException {
- try {
- BufferedImage image = fromImage(img);
-
- boolean ok = false;
- try {
-
- ok = ImageIO.write(image, format, target);
- } catch (IOException e) {
- ok = false;
- }
-
- // Some formats are not reliable
- // Second chance: PNG
- if (!ok && !format.equals("png")) {
- try {
- ok = ImageIO.write(image, "png", target);
- } catch (IllegalArgumentException e) {
- throw e;
- } catch (Exception e) {
- throw new IOException("Undocumented exception occured, "
- + "converting to IOException", e);
- }
- }
-
- if (!ok) {
- throw new IOException(
- "Cannot find a writer for this image and format: "
- + format);
- }
- } catch (IOException e) {
- throw new IOException("Cannot write image to " + target, e);
- }
- }
-
- /**
- * Convert the given {@link Image} into a {@link BufferedImage} object,
- * respecting the EXIF transformations if any.
- *
- * @param img
- * the {@link Image}
- *
- * @return the {@link Image} object
- *
- * @throws IOException
- * in case of IO error
- */
- public static BufferedImage fromImage(Image img) throws IOException {
- InputStream in = img.newInputStream();
- BufferedImage image;
- try {
- int orientation;
- try {
- orientation = getExifTransorm(in);
- } catch (Exception e) {
- // no EXIF transform, ok
- orientation = -1;
- }
-
- in.reset();
-
- try {
- image = ImageIO.read(in);
- } catch (IllegalArgumentException e) {
- throw e;
- } catch (Exception e) {
- throw new IOException("Undocumented exception occured, "
- + "converting to IOException", e);
- }
-
- if (image == null) {
- String extra = "";
- if (img.getSize() <= 2048) {
- try {
- extra = ", content: "
- + new String(img.getData(), "UTF-8");
- } catch (Exception e) {
- extra = ", content unavailable";
- }
- }
- String ssize = StringUtils.formatNumber(img.getSize());
- throw new IOException(
- "Failed to convert input to image, size was: " + ssize
- + extra);
- }
-
- // Note: this code has been found on Internet;
- // thank you anonymous coder.
- int width = image.getWidth();
- int height = image.getHeight();
- AffineTransform affineTransform = new AffineTransform();
-
- switch (orientation) {
- case 1:
- affineTransform = null;
- break;
- case 2: // Flip X
- affineTransform.scale(-1.0, 1.0);
- affineTransform.translate(-width, 0);
- break;
- case 3: // PI rotation
- affineTransform.translate(width, height);
- affineTransform.rotate(Math.PI);
- break;
- case 4: // Flip Y
- affineTransform.scale(1.0, -1.0);
- affineTransform.translate(0, -height);
- break;
- case 5: // - PI/2 and Flip X
- affineTransform.rotate(-Math.PI / 2);
- affineTransform.scale(-1.0, 1.0);
- break;
- case 6: // -PI/2 and -width
- affineTransform.translate(height, 0);
- affineTransform.rotate(Math.PI / 2);
- break;
- case 7: // PI/2 and Flip
- affineTransform.scale(-1.0, 1.0);
- affineTransform.translate(-height, 0);
- affineTransform.translate(0, width);
- affineTransform.rotate(3 * Math.PI / 2);
- break;
- case 8: // PI / 2
- affineTransform.translate(0, width);
- affineTransform.rotate(3 * Math.PI / 2);
- break;
- default:
- affineTransform = null;
- break;
- }
-
- if (affineTransform != null) {
- AffineTransformOp affineTransformOp = new AffineTransformOp(
- affineTransform, AffineTransformOp.TYPE_BILINEAR);
-
- BufferedImage transformedImage = new BufferedImage(width,
- height, image.getType());
- transformedImage = affineTransformOp.filter(image,
- transformedImage);
-
- image = transformedImage;
- }
- //
- } finally {
- in.close();
- }
-
- return image;
- }
-}
git://git.nikiroo.be / fanfix.git / blobdiff