From f39ab43fc0120b7fa97028d40acd7851de8d4a99 Mon Sep 17 00:00:00 2001 From: Jakob Heher Date: Thu, 24 Nov 2022 14:14:37 +0100 Subject: Repository moved to GitHub: https://github.com/a-sit/pdf-over --- .../at/asit/pdfover/commons/utils/ImageUtil.java | 290 --------------------- 1 file changed, 290 deletions(-) delete mode 100644 pdf-over-commons/src/main/java/at/asit/pdfover/commons/utils/ImageUtil.java (limited to 'pdf-over-commons/src/main/java/at/asit/pdfover/commons/utils/ImageUtil.java') diff --git a/pdf-over-commons/src/main/java/at/asit/pdfover/commons/utils/ImageUtil.java b/pdf-over-commons/src/main/java/at/asit/pdfover/commons/utils/ImageUtil.java deleted file mode 100644 index f68f73ec..00000000 --- a/pdf-over-commons/src/main/java/at/asit/pdfover/commons/utils/ImageUtil.java +++ /dev/null @@ -1,290 +0,0 @@ -package at.asit.pdfover.commons.utils; - -import java.awt.Graphics2D; -import java.awt.image.BufferedImage; -import java.io.File; -import java.io.IOException; -import java.util.Iterator; - -import java.awt.image.ComponentColorModel; -import java.awt.image.DirectColorModel; -import java.awt.image.IndexColorModel; -import java.awt.image.WritableRaster; - -import org.eclipse.swt.SWT; -import org.eclipse.swt.graphics.ImageData; -import org.eclipse.swt.graphics.PaletteData; -import org.eclipse.swt.graphics.RGB; -import org.eclipse.swt.layout.FormAttachment; -import org.eclipse.swt.layout.FormData; -import org.eclipse.swt.layout.FormLayout; -import org.eclipse.swt.widgets.Display; -import org.eclipse.swt.widgets.Label; -import org.eclipse.swt.widgets.Shell; - -import javax.imageio.ImageIO; -import javax.imageio.ImageReadParam; -import javax.imageio.ImageReader; -import javax.imageio.stream.ImageInputStream; -import javax.swing.ImageIcon; -import javax.swing.JLabel; -import javax.swing.JOptionPane; -import javax.swing.JPanel; -import javax.swing.JScrollPane; - -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -import com.drew.imaging.ImageMetadataReader; -import com.drew.imaging.ImageProcessingException; -import com.drew.metadata.Metadata; -import com.drew.metadata.exif.ExifDirectoryBase; -import com.drew.metadata.exif.ExifIFD0Directory; - -class EXIFRotation { - private static final Logger log = LoggerFactory.getLogger(EXIFRotation.class); - /** - * rotate by this times Math.PI / 2 - */ - final int rotationInQuarters; - /** - * whether you should mirror (left-right) the image AFTER rotation - */ - final boolean shouldMirrorLR; - - private EXIFRotation(int rotateQuarters, boolean mirrorLR) { - this.rotationInQuarters = rotateQuarters; - this.shouldMirrorLR = mirrorLR; - } - - public static final EXIFRotation NONE = new EXIFRotation(0, false); - - private static final EXIFRotation[] rotationForIndex = { - /* invalid (0) */ NONE, - /* 1 */ NONE, - /* 2 */ new EXIFRotation(0, true), - /* 3 */ new EXIFRotation(2, false), - /* 4 */ new EXIFRotation(2, true), - /* 5 */ new EXIFRotation(1, true), - /* 6 */ new EXIFRotation(1, false), - /* 7 */ new EXIFRotation(3, true), - /* 8 */ new EXIFRotation(3, false) - }; - - static EXIFRotation For(File file) throws IOException - { - try - { - Metadata metadata = ImageMetadataReader.readMetadata(file); - if (metadata == null) - return NONE; - ExifIFD0Directory metaDir = metadata.getFirstDirectoryOfType(ExifIFD0Directory.class); - if (metaDir == null) - return NONE; - Integer orientation = metaDir.getInteger(ExifDirectoryBase.TAG_ORIENTATION); - if (orientation == null) - return NONE; - if (rotationForIndex.length <= orientation) - { - log.warn("Invalid orientation {} in EXIF metadata for {}", orientation, file.getName()); - return NONE; - } - return rotationForIndex[orientation]; - } catch (ImageProcessingException e) { - log.error("Failed to read EXIF metadata for {}", file.getName(), e); - return NONE; - } - } -} - -public final class ImageUtil { - - /** - * ImageIO.read, except it honors EXIF rotation metadata - * (which the default, for some reason, does not) - */ - public static final BufferedImage readImageWithEXIFRotation(File input) throws IOException - { - if (input == null) - throw new IllegalArgumentException("input == null"); - if (!input.canRead()) - throw new IllegalArgumentException("cannot read input"); - - ImageInputStream stream = ImageIO.createImageInputStream(input); - if (stream == null) - throw new RuntimeException("Failed to create ImageInputStream for some reason?"); - - Iterator iter = ImageIO.getImageReaders(stream); - if (!iter.hasNext()) - { - stream.close(); - return null; - } - - ImageReader reader = iter.next(); - boolean isJPEG = reader.getFormatName().equals("JPEG"); - ImageReadParam param = reader.getDefaultReadParam(); - reader.setInput(stream, true, false); - BufferedImage image; - try { - image = reader.read(0, param); - } finally { - reader.dispose(); - stream.close(); - } - - if (!isJPEG) - return image; - - EXIFRotation rotation = EXIFRotation.For(input); - if (rotation.rotationInQuarters > 0) - { - boolean isSideways = ((rotation.rotationInQuarters % 2) == 1); - int sourceWidth = image.getWidth(); - int sourceHeight = image.getHeight(); - int targetWidth = isSideways ? sourceHeight : sourceWidth; - int targetHeight = isSideways ? sourceWidth : sourceHeight; - - BufferedImage result = new BufferedImage(targetWidth, targetHeight, image.getType()); - Graphics2D g = result.createGraphics(); - g.translate((targetWidth - sourceWidth)/2, (targetHeight - sourceHeight)/2); - g.rotate(rotation.rotationInQuarters * Math.PI / 2, sourceWidth/2, sourceHeight/2); - g.drawRenderedImage(image, null); - g.dispose(); - image = result; - } - - if (rotation.shouldMirrorLR) - { - int width = image.getWidth(); - int height = image.getHeight(); - BufferedImage result = new BufferedImage(width, height, image.getType()); - Graphics2D g = result.createGraphics(); - g.drawImage(image, width, 0, -width, height, null); - g.dispose(); - image = result; - } - return image; - } - - public static java.awt.Image debugDisplayImage(java.awt.Image image) { - JPanel panel = new JPanel(); - panel.add(new JLabel(new ImageIcon(image))); - JOptionPane.showMessageDialog(null, new JScrollPane(panel)); - return image; - } - - public static org.eclipse.swt.graphics.ImageData debugDisplayImage(org.eclipse.swt.graphics.ImageData image) { - Display display = Display.getDefault(); - Shell shell = new Shell(display, SWT.CLOSE); - shell.setLayout(new FormLayout()); - - Label imgLabel = new Label(shell, SWT.NATIVE); - FormData imgFD = new FormData(); - imgFD.left = new FormAttachment(0); - imgFD.top = new FormAttachment(0); - imgFD.width = image.width; - imgFD.height = image.height; - imgLabel.setLayoutData(imgFD); - imgLabel.setImage(new org.eclipse.swt.graphics.Image(display, image)); - - shell.setSize(image.width + 20, image.height + 60); - - shell.open(); - shell.forceActive(); - return image; - } - - public static org.eclipse.swt.graphics.Image debugDisplayImage(org.eclipse.swt.graphics.Image image) { - debugDisplayImage(image.getImageData()); - return image; - } - - /** - * Convert AWT Image to SWT Image - * - * @param bufferedImage - * @return SWT Image data - */ - public static ImageData convertToSWT(final BufferedImage bufferedImage) { - if (bufferedImage == null) - return null; - - if ((bufferedImage.getWidth() <= 0) || (bufferedImage.getHeight() <= 0)) - return null; - - if (bufferedImage.getColorModel() instanceof DirectColorModel) { - DirectColorModel colorModel = (DirectColorModel) bufferedImage - .getColorModel(); - PaletteData palette = new PaletteData(colorModel.getRedMask(), - colorModel.getGreenMask(), colorModel.getBlueMask()); - ImageData data = new ImageData(bufferedImage.getWidth(), - bufferedImage.getHeight(), colorModel.getPixelSize(), - palette); - WritableRaster raster = bufferedImage.getRaster(); - int[] pixelArray = new int[3]; - for (int y = 0; y < data.height; y++) { - for (int x = 0; x < data.width; x++) { - raster.getPixel(x, y, pixelArray); - int pixel = palette.getPixel(new RGB(pixelArray[0], - pixelArray[1], pixelArray[2])); - data.setPixel(x, y, pixel); - } - } - return data; - } else if (bufferedImage.getColorModel() instanceof IndexColorModel) { - IndexColorModel colorModel = (IndexColorModel) bufferedImage - .getColorModel(); - int size = colorModel.getMapSize(); - byte[] reds = new byte[size]; - byte[] greens = new byte[size]; - byte[] blues = new byte[size]; - colorModel.getReds(reds); - colorModel.getGreens(greens); - colorModel.getBlues(blues); - RGB[] rgbs = new RGB[size]; - for (int i = 0; i < rgbs.length; i++) { - rgbs[i] = new RGB(reds[i] & 0xFF, greens[i] & 0xFF, - blues[i] & 0xFF); - } - PaletteData palette = new PaletteData(rgbs); - ImageData data = new ImageData(bufferedImage.getWidth(), - bufferedImage.getHeight(), colorModel.getPixelSize(), - palette); - data.transparentPixel = colorModel.getTransparentPixel(); - WritableRaster raster = bufferedImage.getRaster(); - int[] pixelArray = new int[1]; - for (int y = 0; y < data.height; y++) { - for (int x = 0; x < data.width; x++) { - raster.getPixel(x, y, pixelArray); - data.setPixel(x, y, pixelArray[0]); - } - } - return data; - } else if (bufferedImage.getColorModel() instanceof ComponentColorModel) { - ComponentColorModel colorModel = (ComponentColorModel)bufferedImage.getColorModel(); - - //ASSUMES: 3 BYTE BGR IMAGE TYPE - - PaletteData palette = new PaletteData(0x0000FF, 0x00FF00,0xFF0000); - ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(), colorModel.getPixelSize(), palette); - - //This is valid because we are using a 3-byte Data model with no transparent pixels - data.transparentPixel = -1; - - WritableRaster raster = bufferedImage.getRaster(); - int[] pixelArray = new int[bufferedImage.getColorModel().getNumComponents()]; - for (int y = 0; y < data.height; y++) { - for (int x = 0; x < data.width; x++) { - raster.getPixel(x, y, pixelArray); - int pixel = palette.getPixel(new RGB(pixelArray[0], pixelArray[1], pixelArray[2])); - data.setPixel(x, y, pixel); - if (3 < pixelArray.length) - data.setAlpha(x, y, pixelArray[3]); - } - } - return data; - } - throw new RuntimeException("could not convert image with model " + bufferedImage.getColorModel().getClass().getName()); - } -} -- cgit v1.2.3