Examples with Size org.olat.core.commons.services.image.Size used on opensource projects

Example 36 with Size

use of org.olat.core.commons.services.image.Size in project openolat by klemens.

the class FileLinkChooserController method getSize.

private Size getSize(VFSItem item, String filename) {
    Size size = null;
    if (item instanceof VFSLeaf) {
        VFSLeaf leaf = (VFSLeaf) item;
        String suffix = FileUtils.getFileSuffix(filename);
        size = movieService.getSize(leaf, suffix);
    }
    return size;
}

Example 37 with Size

use of org.olat.core.commons.services.image.Size in project openolat by klemens.

the class AbstractImageHelper method getImageSize.

private Size getImageSize(VFSLeaf media, String suffix) {
    Size result = null;
    Iterator<ImageReader> iter = ImageIO.getImageReadersBySuffix(suffix);
    if (iter.hasNext()) {
        ImageInputStream stream = null;
        InputStream mediaStream = null;
        ImageReader reader = iter.next();
        try {
            mediaStream = media.getInputStream();
            if (mediaStream != null) {
                stream = new MemoryCacheImageInputStream(mediaStream);
                reader.setInput(stream);
                int readerMinIndex = reader.getMinIndex();
                int width = reader.getWidth(readerMinIndex);
                int height = reader.getHeight(readerMinIndex);
                result = new Size(width, height, 0, 0, false);
            }
        } catch (IOException e) {
            log.error(e.getMessage());
        } finally {
            IOUtils.closeQuietly(stream);
            IOUtils.closeQuietly(mediaStream);
            reader.dispose();
        }
    } else {
        log.error("No reader found for given format: " + suffix);
    }
    return result;
}

Example 38 with Size

use of org.olat.core.commons.services.image.Size in project openolat by klemens.

the class AbstractImageHelper method getImageSizeFallback.

private Size getImageSizeFallback(File media) {
    BufferedImage imageSrc = null;
    try (InputStream fileStream = new FileInputStream(media)) {
        imageSrc = ImageIO.read(fileStream);
        if (imageSrc == null) {
            // happens with faulty Java implementation, e.g. on MacOSX
            return null;
        }
        double realWidth = imageSrc.getWidth();
        double realHeight = imageSrc.getHeight();
        return new Size((int) realWidth, (int) realHeight, 0, 0, false);
    } catch (IOException e) {
        // log error, don't do anything else
        log.error("Problem while setting image size to fit for resource::" + media, e);
        return null;
    } finally {
        if (imageSrc != null) {
            imageSrc.flush();
        }
    }
}

Example 39 with Size

use of org.olat.core.commons.services.image.Size in project openolat by klemens.

the class AbstractImageHelper method getImageSize.

private Size getImageSize(File media, String suffix) {
    Size result = null;
    Iterator<ImageReader> iter = ImageIO.getImageReadersBySuffix(suffix);
    if (iter.hasNext()) {
        ImageReader reader = iter.next();
        try (InputStream mediaStream = new FileInputStream(media);
            ImageInputStream stream = new MemoryCacheImageInputStream(mediaStream)) {
            reader.setInput(stream);
            int readerMinIndex = reader.getMinIndex();
            int width = reader.getWidth(readerMinIndex);
            int height = reader.getHeight(readerMinIndex);
            result = new Size(width, height, 0, 0, false);
        } catch (IOException e) {
            log.error(e.getMessage());
        } finally {
            reader.dispose();
        }
    } else {
        log.error("No reader found for given format: " + suffix);
    }
    return result;
}

Example 40 with Size

use of org.olat.core.commons.services.image.Size in project openolat by klemens.

the class ImageComponent method setMaxWithAndHeightToFitWithin.

/**
 * Call this method to display the image within a given box of width and
 * height. The method does NOT manipulate the image itself, it does only
 * adjust the images width and height tag. <br />
 * The image will made displayed smaller, it will not enlarge the image since
 * this always looks bad. The scaling is done in a way to get an image that is
 * smaller than the maxWidth or smaller than the maxHeight, depending on whith
 * of the sizes produce a smaller scaling factor. <br />
 * To scale an image on the filesystem to another width and height, use the
 * ImageHelper.scaleImage() method.
 *
 * @param maxWidth
 * @param maxHeight
 */
public void setMaxWithAndHeightToFitWithin(int maxWidth, int maxHeight) {
    if (media == null || !media.exists()) {
        scalingFactor = Float.NaN;
        realSize = null;
        scaledSize = null;
        return;
    }
    try {
        Size size = getRealSize();
        if (size == null) {
            return;
        }
        int realWidth = size.getWidth();
        int realHeight = size.getHeight();
        // calculate scaling factor
        scalingFactor = 1f;
        if (realWidth > maxWidth) {
            float scalingWidth = 1f / realWidth * maxWidth;
            scalingFactor = (scalingWidth < scalingFactor ? scalingWidth : scalingFactor);
        }
        if (realHeight > maxHeight) {
            float scalingHeight = 1f / realHeight * maxHeight;
            scalingFactor = (scalingHeight < scalingFactor ? scalingHeight : scalingFactor);
        }
        realSize = new Size(realWidth, realHeight, false);
        scaledSize = new Size(Math.round(realWidth * scalingFactor), Math.round(realHeight * scalingFactor), false);
        setDirty(true);
    } catch (Exception e) {
        // log error, don't do anything else
        log.error("Problem while setting image size to fit " + maxWidth + "x" + maxHeight + " for resource::" + media, e);
    }
}