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

Example 56 with Size

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

the class ImageHelperImpl method calcScaledSize.

private static SizeAndBufferedImage calcScaledSize(ImageInputStream stream, String suffix, int maxWidth, int maxHeight, boolean fill) {
    Iterator<ImageReader> iter = ImageIO.getImageReadersBySuffix(suffix);
    if (iter.hasNext()) {
        ImageReader reader = iter.next();
        try {
            reader.setInput(stream, true, true);
            int width = reader.getWidth(reader.getMinIndex());
            int height = reader.getHeight(reader.getMinIndex());
            Size size = new Size(width, height, false);
            Size scaledSize = computeScaledSize(width, height, maxWidth, maxHeight, fill);
            SizeAndBufferedImage all = new SizeAndBufferedImage(size, scaledSize);
            int readerMinIndex = reader.getMinIndex();
            ImageReadParam param = reader.getDefaultReadParam();
            Iterator<ImageTypeSpecifier> imageTypes = reader.getImageTypes(0);
            while (imageTypes.hasNext()) {
                try {
                    ImageTypeSpecifier imageTypeSpecifier = imageTypes.next();
                    int bufferedImageType = imageTypeSpecifier.getBufferedImageType();
                    if (bufferedImageType == BufferedImage.TYPE_BYTE_GRAY) {
                        param.setDestinationType(imageTypeSpecifier);
                    }
                    double memoryKB = (width * height * 4) / 1024d;
                    if (memoryKB > 2000) {
                        // check limit at 20MB
                        double free = Runtime.getRuntime().freeMemory() / 1024d;
                        if (free > memoryKB) {
                            all.setImage(reader.read(readerMinIndex, param));
                        } else {
                            // make sub sampling to save memory
                            int ratio = (int) Math.round(Math.sqrt(memoryKB / free));
                            param.setSourceSubsampling(ratio, ratio, 0, 0);
                            all.setImage(reader.read(readerMinIndex, param));
                        }
                    } else {
                        all.setImage(reader.read(readerMinIndex, param));
                    }
                    return all;
                } catch (IllegalArgumentException e) {
                    log.warn(e.getMessage(), e);
                }
            }
        } catch (IOException e) {
            log.error(e.getMessage(), e);
        } finally {
            reader.dispose();
        }
    } else {
        log.error("No reader found for given format: " + suffix, null);
    }
    return null;
}

Example 57 with Size

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

the class ImageMagickHelper method scaleImage.

@Override
public Size scaleImage(File image, String imgExt, VFSLeaf scaledImage, int maxWidth, int maxHeight) {
    File scaledBaseFile = extractIOFile(scaledImage);
    FinalSize finalSize = generateThumbnail(image, scaledBaseFile, false, maxWidth, maxHeight, false);
    if (finalSize != null) {
        return new Size(finalSize.getWidth(), finalSize.getHeight(), true);
    }
    return null;
}

Example 58 with Size

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

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 59 with Size

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

the class FileLinkChooserController method event.

@Override
public void event(UserRequest ureq, Controller source, Event event) {
    if (source == uploadCtr) {
        if (event instanceof FolderEvent) {
            FolderEvent folderEvent = (FolderEvent) event;
            if (isFileSuffixOk(folderEvent.getFilename())) {
                Size size = null;
                VFSItem item = folderEvent.getItem();
                String relPath;
                if (item != null) {
                    size = getSize(item, item.getName());
                    relPath = FileChooserUIFactory.getSelectedRelativeItemPath(folderEvent, rootDir, fileName);
                } else {
                    relPath = folderEvent.getFilename();
                }
                if (StringHelper.containsNonWhitespace(absolutePath)) {
                    relPath = absolutePath + relPath;
                }
                if (size != null) {
                    fireEvent(ureq, new URLChoosenEvent(relPath, null, null, null, size.getWidth(), size.getHeight()));
                } else {
                    fireEvent(ureq, new URLChoosenEvent(relPath));
                }
            } else {
                setErrorMessage(folderEvent.getFilename());
            }
        }
        if (event == Event.DONE_EVENT) {
            if (uploadCtr.getStatus() == FolderCommandStatus.STATUS_CANCELED) {
                fireEvent(ureq, Event.CANCELLED_EVENT);
            }
        } else if (event == Event.CANCELLED_EVENT) {
            fireEvent(ureq, Event.CANCELLED_EVENT);
        } else if (event == Event.FAILED_EVENT) {
            fireEvent(ureq, Event.CANCELLED_EVENT);
        }
    } else if (source == fileChooserController) {
        if (event instanceof FileChoosenEvent) {
            FileChoosenEvent fileEvent = (FileChoosenEvent) event;
            VFSItem item = fileEvent.getSelectedItem();
            Size size = getSize(item, item.getName());
            String relPath = FileChooserUIFactory.getSelectedRelativeItemPath(fileEvent, rootDir, fileName);
            // notify parent controller
            if (StringHelper.containsNonWhitespace(absolutePath)) {
                relPath = absolutePath + relPath;
            }
            if (size != null) {
                fireEvent(ureq, new URLChoosenEvent(relPath, null, null, null, size.getWidth(), size.getHeight()));
            } else {
                fireEvent(ureq, new URLChoosenEvent(relPath));
            }
        } else if (event == Event.CANCELLED_EVENT) {
            fireEvent(ureq, Event.CANCELLED_EVENT);
        } else if (event == Event.FAILED_EVENT) {
            fireEvent(ureq, Event.CANCELLED_EVENT);
        }
    }
}

Example 60 with Size

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

the class DrawingEditorController method formOK.

@Override
protected void formOK(UserRequest ureq) {
    if (readOnly)
        return;
    // title
    itemBuilder.setTitle(titleEl.getValue());
    File objectImg = null;
    if (backgroundImage != null) {
        objectImg = backgroundImage;
    } else if (initialBackgroundImage != null) {
        objectImg = initialBackgroundImage;
    }
    if (objectImg != null) {
        String filename = objectImg.getName();
        String mimeType = WebappHelper.getMimeType(filename);
        Size size = imageService.getSize(new LocalFileImpl(objectImg), null);
        int height = -1;
        int width = -1;
        if (size != null) {
            height = size.getHeight();
            width = size.getWidth();
        }
        itemBuilder.setBackground(filename, mimeType, height, width);
    }
    // question
    String questionText = textEl.getRawValue();
    itemBuilder.setQuestion(questionText);
    fireEvent(ureq, new AssessmentItemEvent(AssessmentItemEvent.ASSESSMENT_ITEM_CHANGED, itemBuilder.getAssessmentItem(), QTI21QuestionType.drawing));
}