Пример #1
0
 private StreamResource getStream() {
   StreamResource.StreamSource source =
       new StreamResource.StreamSource() {
         public InputStream getStream() {
           File file = new File(Book.getFile());
           InputStream input = null;
           try {
             input = new FileInputStream(file);
           } catch (FileNotFoundException e) {
           }
           return input;
         }
       };
   StreamResource resource = new StreamResource(source, Book.getFile());
   return resource;
 }
Пример #2
0
  /** @param el */
  public BookImage(Books el, String user) {
    super();
    this.Book = el;

    this.setStyleName("cells");
    this.setHeight("250px");
    this.setWidth("200px");

    rating.setAnimated(true);
    rating.setCaption(null);
    rating.setMaxValue(5);
    rating.setStyleName("rating");
    rating.setReadOnly(true);

    rating_my.setAnimated(true);
    rating_my.setCaption(null);
    rating_my.setMaxValue(5);
    rating_my.setStyleName("rating_my");

    IRaitingService iRaitingService = new IRaitingService();
    try {
      double rate = iRaitingService.getRaiting(el.getId());
      rating.setReadOnly(false);
      rating.setValue(rate);
      rating.setReadOnly(true);
      double myrate = iRaitingService.getRaiting(user, el.getId());
      rating_my.setValue(myrate);
    } catch (SQLException e) {
      e.printStackTrace();
    }

    rating_my.addValueChangeListener(
        e -> {
          try {
            Rating rat =
                iRaitingService.getUser(
                    getUI().getSession().getAttribute("user").toString(), el.getId());

            rat.setRaiting(rating_my.getValue());

            iRaitingService.update(rat);

            double rate = iRaitingService.getRaiting(el.getId());
            rating.setReadOnly(false);
            rating.setValue(rate);
            rating.setReadOnly(true);

            new Notification(String.valueOf(rate), Notification.Type.TRAY_NOTIFICATION)
                .show(Page.getCurrent());
          } catch (SQLException e1) {
            e1.printStackTrace();
          }
        });

    rating_layout.addComponent(rating);
    rating_layout.addComponent(rating_my);
    rating_layout.setComponentAlignment(rating, Alignment.MIDDLE_LEFT);
    rating_layout.setComponentAlignment(rating_my, Alignment.MIDDLE_LEFT);
    rating_layout.setStyleName("ratinglayout");

    imageEmbedded.setSource(new FileResource(new File(Book.getImage())));

    title.setValue(Book.getTitle());
    author.setValue(Book.getAuthor());

    if (Book.getFile().isEmpty()) buttonDownload.setEnabled(false);

    buttonDownload.setWidth("80%");
    imageEmbedded.setWidth("100%");
    imageEmbedded.setHeight("100%");

    title.setWidth(null);
    author.setWidth(null);

    VerticalLayout bodyLayout = new VerticalLayout(title, author, imageEmbedded);

    bodyLayout.setExpandRatio(title, 12);
    bodyLayout.setExpandRatio(author, 8);
    bodyLayout.setExpandRatio(imageEmbedded, 80);
    bodyLayout.setSizeFull();
    bodyLayout.setComponentAlignment(title, Alignment.MIDDLE_CENTER);
    bodyLayout.setComponentAlignment(author, Alignment.MIDDLE_CENTER);
    bodyLayout.setComponentAlignment(imageEmbedded, Alignment.MIDDLE_CENTER);

    buttonDownload.setStyleName("super-button");
    title.setStyleName("name-label");
    author.setStyleName("author-label");

    this.addComponent(rating_layout);
    this.addComponent(bodyLayout);
    this.addComponent(buttonDownload);

    this.setComponentAlignment(rating_layout, Alignment.TOP_CENTER);
    this.setComponentAlignment(bodyLayout, Alignment.TOP_CENTER);
    this.setComponentAlignment(buttonDownload, Alignment.BOTTOM_CENTER);
    this.setExpandRatio(rating_layout, 5);
    this.setExpandRatio(bodyLayout, 85);
    this.setExpandRatio(buttonDownload, 10);

    StreamResource sr = getStream();
    FileDownloader fileDownloader = new FileDownloader(sr);
    fileDownloader.extend(buttonDownload);

    bodyLayout.addLayoutClickListener(
        e -> {
          BookWin win = new BookWin(this.Book);
          UI.getCurrent().addWindow(win);
        });
  }