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

Example 1 with PDFFile

use of com.sun.pdfview.PDFFile 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 PDFFile

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

the class ViewText method createImage.

/**
 * @return The LaTeX compiled picture of the text with its file path and its log.
 */
private Tuple<Image, String> createImage() {
    final Optional<File> optDir = LFileUtils.INSTANCE.createTempDir();
    if (!optDir.isPresent()) {
        return new Tuple<>(null, "A temporary file cannot be created.");
    }
    BufferedImage bi = null;
    // $NON-NLS-1$
    String log = "";
    final File tmpDir = optDir.get();
    final String doc = getLaTeXDocument();
    // $NON-NLS-1$
    final String basePathPic = tmpDir.getAbsolutePath() + LSystem.FILE_SEP + "latexdrawTmpPic" + System.currentTimeMillis();
    final String pathTex = basePathPic + ExportFormat.TEX.getFileExtension();
    final OperatingSystem os = LSystem.INSTANCE.getSystem().orElse(OperatingSystem.LINUX);
    // Saving the LaTeX document into a file to be compiled.
    if (!LFileUtils.INSTANCE.saveFile(pathTex, doc).isPresent()) {
        return new Triple<>(null, basePathPic, log);
    }
    // Compiling the LaTeX document.
    Tuple<Boolean, String> res = execute(new String[] { // $NON-NLS-1$ //$NON-NLS-2$
    os.getLatexBinPath(), // $NON-NLS-1$ //$NON-NLS-2$
    "--halt-on-error", // $NON-NLS-1$ //$NON-NLS-2$
    "--interaction=nonstopmode", "--output-directory=" + tmpDir.getAbsolutePath(), // $NON-NLS-1$
    LFileUtils.INSTANCE.normalizeForLaTeX(pathTex) });
    boolean ok = res.a;
    log = res.b;
    // Compiling the DVI document.
    if (ok) {
        // $NON-NLS-1$ //$NON-NLS-2$
        res = execute(new String[] { os.getDvipsBinPath(), basePathPic + ".dvi", "-o", basePathPic + ExportFormat.EPS_LATEX.getFileExtension() });
        ok = res.a;
        log = log + res.b;
    }
    // Converting the PS document as a PDF one.
    if (ok) {
        res = execute(new String[] { os.getPs2pdfBinPath(), basePathPic + ExportFormat.EPS_LATEX.getFileExtension(), basePathPic + ExportFormat.PDF.getFileExtension() });
        ok = res.a;
        log = log + res.b;
    }
    // Getting the image of the first page of the PDF document.
    if (ok) {
        final String pdfpath = basePathPic + ExportFormat.PDF.getFileExtension();
        final File pdfFile = new File(pdfpath);
        bi = readPDFFirstPage(pdfFile);
    }
    // Converting the image as a JFX one.
    final Image fxImage;
    if (bi == null) {
        fxImage = null;
    } else {
        fxImage = SwingFXUtils.toFXImage(bi, null);
        bi.flush();
    }
    // Deleting the temporary folder and its content.
    LFileUtils.INSTANCE.removeDirWithContent(tmpDir.getPath());
    return new Tuple<>(fxImage, log);
}

Example 3 with PDFFile

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

the class PdfViewerController method bindPaginationToCurrentFile.

private void bindPaginationToCurrentFile() {
    currentFile.addListener(new ChangeListener<PDFFile>() {

        @Override
        public void changed(ObservableValue<? extends PDFFile> observable, PDFFile oldFile, PDFFile newFile) {
            if (newFile != null) {
                pagination.setCurrentPageIndex(0);
            }
        }
    });
    pagination.pageCountProperty().bind(new IntegerBinding() {

        {
            super.bind(currentFile);
        }

        @Override
        protected int computeValue() {
            return currentFile.get() == null ? 0 : currentFile.get().getNumPages();
        }
    });
    pagination.disableProperty().bind(Bindings.isNull(currentFile));
}

Example 4 with PDFFile

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

the class PdfViewerController method loadFile.

public void loadFile(String caminho) {
    File file = new File(caminho);
    if (file != null) {
        final Task<PDFFile> loadFileTask = new Task<PDFFile>() {

            @Override
            protected PDFFile call() throws Exception {
                try (RandomAccessFile raf = new RandomAccessFile(file, "r");
                    FileChannel channel = raf.getChannel()) {
                    ByteBuffer buffer = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
                    return new PDFFile(buffer);
                }
            }
        };
        loadFileTask.setOnSucceeded(new EventHandler<WorkerStateEvent>() {

            @Override
            public void handle(WorkerStateEvent event) {
                pagination.getScene().getRoot().setDisable(false);
                final PDFFile pdfFile = loadFileTask.getValue();
                currentFile.set(pdfFile);
            }
        });
        loadFileTask.setOnFailed(new EventHandler<WorkerStateEvent>() {

            @Override
            public void handle(WorkerStateEvent event) {
                pagination.getScene().getRoot().setDisable(false);
                showErrorMessage("Não é possivel ler " + file.getName(), loadFileTask.getException());
                btnZoomIn.setDisable(true);
                btnZoomOut.setDisable(true);
            }
        });
        imageLoadService.submit(loadFileTask);
    }
}