Examples with PDFPage com.sun.pdfview.PDFPage used on opensource projects

Example 1 with PDFPage

use of com.sun.pdfview.PDFPage in project latexdraw by arnobl.

the class ViewText method readPDFFirstPage.

/**
 * Reads and returns the first page of the given pdf document.
 * @param file The file of the pdf document.
 * @return The image of the first page or null.
 */
private BufferedImage readPDFFirstPage(final File file) {
    BufferedImage bi = null;
    try (final FileChannel fc = new RandomAccessFile(file, "r").getChannel()) {
        // $NON-NLS-1$
        final MappedByteBuffer mbb = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
        final PDFFile pdfFile = new PDFFile(mbb);
        mbb.clear();
        if (pdfFile.getNumPages() == 1) {
            final PDFPage page = pdfFile.getPage(0);
            final Rectangle2D bound = page.getBBox();
            final java.awt.Image img = page.getImage((int) bound.getWidth(), (int) bound.getHeight(), bound, null, false, true);
            if (img instanceof BufferedImage) {
                bi = ImageCropper.INSTANCE.cropImage((BufferedImage) img);
            }
            if (img != null) {
                img.flush();
            }
        } else {
            // $NON-NLS-1$
            BadaboomCollector.INSTANCE.add(new IllegalArgumentException("Not a single page: " + pdfFile.getNumPages()));
        }
    } catch (final IOException | IllegalArgumentException | SecurityException ex) {
        BadaboomCollector.INSTANCE.add(ex);
    }
    return bi;
}

Example 2 with PDFPage

use of com.sun.pdfview.PDFPage in project arquivoProject by fader-azevedo.

the class PdfViewerController method updateImage.

// *************** Background image loading ****************
private void updateImage(final int pageNumber) {
    final Task<ImageView> updateImageTask = new Task<ImageView>() {

        @Override
        protected ImageView call() throws Exception {
            PDFPage page = currentFile.get().getPage(pageNumber + 1);
            Rectangle2D bbox = page.getBBox();
            final double actualPageWidth = bbox.getWidth();
            final double actualPageHeight = bbox.getHeight();
            // record page dimensions for zoomToFit and zoomToWidth:
            currentPageDimensions = new PageDimensions(actualPageWidth, actualPageHeight);
            // width and height of image:
            final int width = (int) (actualPageWidth * zoom.get());
            final int height = (int) (actualPageHeight * zoom.get());
            // retrieve image for page:
            // width, height, clip, imageObserver, paintBackground, waitUntilLoaded:
            java.awt.Image awtImage = page.getImage(width, height, bbox, null, true, true);
            // draw image to buffered image:
            BufferedImage buffImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
            buffImage.createGraphics().drawImage(awtImage, 0, 0, null);
            // convert to JavaFX image:
            Image image = SwingFXUtils.toFXImage(buffImage, null);
            // wrap in image view and return:
            ImageView imageView = new ImageView(image);
            imageView.setPreserveRatio(true);
            return imageView;
        }
    };
    updateImageTask.setOnSucceeded(new EventHandler<WorkerStateEvent>() {

        @Override
        public void handle(WorkerStateEvent event) {
            pagination.getScene().getRoot().setDisable(false);
            currentImage.set(updateImageTask.getValue());
        }
    });
    updateImageTask.setOnFailed(new EventHandler<WorkerStateEvent>() {

        @Override
        public void handle(WorkerStateEvent event) {
            pagination.getScene().getRoot().setDisable(false);
            updateImageTask.getException().printStackTrace();
        }
    });
    pagination.getScene().getRoot().setDisable(true);
    imageLoadService.submit(updateImageTask);
}