Example usage for com.vaadin.ui Button Button

Introduction

In this page you can find the example usage for com.vaadin.ui Button Button.

Prototype

public Button(Resource icon, ClickListener listener) 

Source Link

Document

Creates a new push button with a click listener.

Usage

From source file:annis.gui.components.ExceptionDialog.java

License:Apache License

public ExceptionDialog(Throwable ex, String caption) {
    this.cause = ex;
    Preconditions.checkNotNull(ex);//w w w  .j  ava2  s. c  om

    layout = new VerticalLayout();
    setContent(layout);
    layout.setWidth("100%");
    layout.setHeight("-1");

    if (caption == null) {
        setCaption("Unexpected error");
    } else {
        setCaption(caption);
    }

    Label lblInfo = new Label("An unexpected error occured.<br />The error message was:", ContentMode.HTML);
    lblInfo.setHeight("-1px");
    lblInfo.setWidth("100%");
    layout.addComponent(lblInfo);
    lblInfo.addStyleName("exception-message-caption");

    String message = ex.getMessage();
    if (message == null || message.isEmpty()) {
        message = "<no message>";
    }
    Label lblMessage = new Label(message);
    lblMessage.addStyleName("exception-message-content");
    lblMessage.setHeight("-1px");
    lblMessage.setWidth("100%");
    layout.addComponent(lblMessage);

    actionsLayout = new HorizontalLayout();
    actionsLayout.addStyleName("exception-dlg-details");
    actionsLayout.setWidth("100%");
    actionsLayout.setHeight("-1px");
    layout.addComponent(actionsLayout);

    btDetails = new Button("Show Details", this);
    btDetails.setStyleName(BaseTheme.BUTTON_LINK);
    actionsLayout.addComponent(btDetails);

    btReportBug = new Button("Report Problem", this);
    btReportBug.setStyleName(BaseTheme.BUTTON_LINK);
    btReportBug.setVisible(false);
    btReportBug.setIcon(FontAwesome.ENVELOPE_O);
    UI ui = UI.getCurrent();
    if (ui instanceof AnnisUI) {
        btReportBug.setVisible(((AnnisUI) ui).canReportBugs());
    }
    actionsLayout.addComponent(btReportBug);
    actionsLayout.setComponentAlignment(btDetails, Alignment.TOP_LEFT);
    actionsLayout.setComponentAlignment(btReportBug, Alignment.TOP_RIGHT);

    lblStacktrace = new Label(Helper.convertExceptionToMessage(ex), ContentMode.PREFORMATTED);
    detailsPanel = new Panel(lblStacktrace);
    detailsPanel.setWidth("100%");
    detailsPanel.setHeight("300px");
    detailsPanel.setVisible(false);
    lblStacktrace.setSizeUndefined();
    lblStacktrace.setVisible(true);
    layout.addComponent(detailsPanel);

    btClose = new Button("OK", this);
    layout.addComponent(btClose);

    layout.setComponentAlignment(btClose, Alignment.BOTTOM_CENTER);
    layout.setExpandRatio(detailsPanel, 0.0f);
    layout.setExpandRatio(actionsLayout, 1.0f);
}

---

From source file:annis.gui.flatquerybuilder.FlatQueryBuilder.java

License:Apache License

private void launch(QueryController cp) {
    this.cp = cp;
    rsc = new ReducingStringComparator();
    this.query = "";
    mainLayout = new VerticalLayout();
    // tracking lists for vertical nodes, edgeboxes and metaboxes
    vnodes = new ArrayList<>();
    eboxes = new ArrayList<>();
    mboxes = new ArrayList<>();
    spbox = null;//from  w  ww. j a  v a  2  s. c om
    // buttons and checks    
    btGo = new Button(BUTTON_GO_LABEL, (Button.ClickListener) this);
    btGo.setStyleName(ChameleonTheme.BUTTON_SMALL);
    btClear = new Button(BUTTON_CLEAR_LABEL, (Button.ClickListener) this);
    btClear.setStyleName(ChameleonTheme.BUTTON_SMALL);
    btInverse = new Button(BUTTON_INV_LABEL, (Button.ClickListener) this);
    btInverse.setStyleName(ChameleonTheme.BUTTON_SMALL);
    btInitLanguage = new Button("Initialize", (Button.ClickListener) this);
    btInitLanguage.setDescription(INFO_INIT_LANG);
    btInitSpan = new Button("Initialize", (Button.ClickListener) this);
    btInitSpan.setDescription(INFO_INIT_SPAN);
    btInitMeta = new Button("Initialize", (Button.ClickListener) this);
    btInitMeta.setDescription(INFO_INIT_META);
    filtering = new NativeSelect("Filtering mechanisms");
    filtering.setDescription(INFO_FILTER);
    ReducingStringComparator rdc = new ReducingStringComparator();
    Set mappings = rdc.getMappings().keySet();
    int i;
    for (i = 0; i < mappings.size(); i++) {
        String mapname = (String) mappings.toArray()[i];
        filtering.addItem(i);
        filtering.setItemCaption(i, mapname);
    }
    filtering.addItem(i + 1);
    filtering.setItemCaption(i + 1, "generic");
    filtering.select(i + 1);
    filtering.setNullSelectionAllowed(false);
    filtering.setImmediate(true);
    // language layout
    language = new HorizontalLayout();
    languagenodes = new HorizontalLayout();
    language.addComponent(languagenodes);
    language.addComponent(btInitLanguage);
    language.setMargin(true);
    language.setCaption(LANG_CAPTION);
    language.addStyleName("linguistics-panel");
    // span layout
    span = new HorizontalLayout();
    span.setSpacing(true);
    span.addComponent(btInitSpan);
    span.setMargin(true);
    span.setCaption(SPAN_CAPTION);
    span.addStyleName("span-panel");
    // meta layout
    meta = new HorizontalLayout();
    meta.setSpacing(true);
    meta.addComponent(btInitMeta);
    meta.setMargin(true);
    meta.setCaption(META_CAPTION);
    meta.addStyleName("meta-panel");
    // toolbar layout
    toolbar = new HorizontalLayout();
    toolbar.setSpacing(true);
    toolbar.addComponent(btGo);
    toolbar.addComponent(btClear);
    toolbar.addComponent(btInverse);
    toolbar.setMargin(true);
    toolbar.setCaption(TOOLBAR_CAPTION);
    toolbar.addStyleName("toolbar-panel");
    // advanced
    advanced = new HorizontalLayout();
    advanced.setSpacing(true);
    advanced.addComponent(filtering);
    advanced.setMargin(true);
    advanced.setCaption(ADVANCED_CAPTION);
    advanced.addStyleName("advanced-panel");
    // put everything on the layout
    mainLayout.setSpacing(true);
    mainLayout.addComponent(language);
    mainLayout.addComponent(span);
    mainLayout.addComponent(meta);
    mainLayout.addComponent(toolbar);
    mainLayout.addComponent(advanced);
    setContent(mainLayout);
    getContent().setWidth("100%");
    getContent().setHeight("-1px");
}

---

From source file:annis.gui.flatquerybuilder.MetaBox.java

License:Apache License

public MetaBox(String level, FlatQueryBuilder sq) {
    this.sq = sq;
    sb = new VerticalLayout();
    sb.setImmediate(true);/*from   w  w w. ja  va2s . c  om*/
    datum = level;
    // close
    btClose = new Button(SearchBox.BUTTON_CLOSE_LABEL, (Button.ClickListener) this);
    btClose.setStyleName(ChameleonTheme.BUTTON_SMALL);
    // metabox values for ebene
    Collection<String> annonames = new TreeSet<>();
    for (String a : sq.getAvailableMetaLevels(level)) {
        annonames.add(a);
    }
    OptionGroup l = new OptionGroup(level);

    for (String annoname : annonames) {
        if (!annoname.isEmpty()) {
            l.addItem(annoname);
        }
    }

    l.setMultiSelect(true);
    l.setNullSelectionAllowed(true);
    l.addStyleName(Helper.CORPUS_FONT_FORCE);
    l.setImmediate(true);

    tcs = l;
    sb.addComponent(tcs);
    sb.addComponent(btClose);
    setContent(sb);
}

---

From source file:annis.gui.flatquerybuilder.SearchBox.java

License:Apache License

public SearchBox(final String ebene, final FlatQueryBuilder sq, final VerticalNode vn, boolean isRegex,
        boolean negativeSearch) {
    this.vn = vn;
    this.ebene = ebene;
    this.sq = sq;
    this.vfs = new ArrayList<>();
    vnframe = new VerticalLayout();
    vnframe.setSpacing(true);/*from   w w  w. jav  a2s  .c om*/
    vnframe.setImmediate(true);
    this.sb = new VerticalLayout(); //maybe other name? sb is "reserved" by SearchBox
    sb.setImmediate(true);
    sb.setSpacing(false); //used to be true
    lbl = new Label(ebene);
    HorizontalLayout sbtoolbar = new HorizontalLayout();
    sbtoolbar.setSpacing(false);
    // searchbox tickbox for regex
    reBox = new CheckBox(CAPTION_REBOX);
    reBox.setImmediate(true);
    sbtoolbar.addComponent(reBox);
    reBox.addValueChangeListener(new ValueChangeListener() {
        // TODO make this into a nice subroutine
        @Override
        public void valueChange(ValueChangeEvent event) {
            if (reBox.getValue()) {
                for (ValueField vf : vfs) {
                    String value = vf.getValue();
                    vf.setValueMode(ValueField.ValueMode.REGEX);
                    if (value != null) {
                        vf.setValue(sq.escapeRegexCharacters(value));
                    }
                }
            } else {
                for (ValueField vf : vfs) {
                    String value = vf.getValue();
                    vf.setValueMode(ValueField.ValueMode.NORMAL);
                    if (value != null) {
                        vf.setValue(sq.unescape(value));
                    }
                }
            }
        }
    });
    reBox.setValue(isRegex);
    reBox.setEnabled(true);
    reBoxSingleValue = isRegex;
    // searchbox tickbox for negative search
    negSearchBox = new CheckBox(NEGATIVE_SEARCH_LABEL);
    negSearchBox.setImmediate(true);
    negSearchBox.setValue(negativeSearch);

    sbtoolbar.addComponent(negSearchBox);
    // close the searchbox
    btClose = new Button(BUTTON_CLOSE_LABEL, (Button.ClickListener) this);
    btClose.setStyleName(ValoTheme.BUTTON_SMALL);

    HorizontalLayout titleBar = new HorizontalLayout();
    titleBar.setWidth(vnframe.getWidth(), vnframe.getWidthUnits());
    titleBar.addComponent(lbl);
    titleBar.setComponentAlignment(lbl, Alignment.BOTTOM_LEFT);
    titleBar.addComponent(btClose);
    titleBar.setComponentAlignment(btClose, Alignment.TOP_RIGHT);

    btAdd = new Button(LABEL_BUTTON_ADD);
    btAdd.addClickListener((Button.ClickListener) this);
    btAdd.setStyleName(ValoTheme.BUTTON_SMALL);

    vnframe.addComponent(titleBar);
    vnframe.addComponent(sb);
    vnframe.addComponent(btAdd);
    vnframe.setComponentAlignment(btAdd, Alignment.BOTTOM_RIGHT);
    vnframe.addComponent(sbtoolbar);

    ValueField vf = new ValueField(sq, this, ebene);
    vf.setProtected(true);
    vfs.add(vf);
    sb.addComponent(vf);

    setContent(vnframe);
}

---

From source file:annis.gui.flatquerybuilder.SpanBox.java

License:Apache License

public SpanBox(final String ebene, final FlatQueryBuilder sq, boolean isRegex) {
    this.ebene = ebene;
    this.sq = sq;
    sb = new HorizontalLayout();
    sb.setImmediate(true);/*from w w  w  .  j a v a2  s. c  om*/
    sb.setSpacing(true);
    sb.setMargin(true);
    ConcurrentSkipListSet<String> annos = new ConcurrentSkipListSet<>();
    for (String a : sq.getAvailableAnnotationLevels(ebene)) {
        annos.add(a);
    }
    this.annonames = annos;
    Label tf = new Label(ebene);
    sb.addComponent(tf);
    this.cb = new SensitiveComboBox();
    cb.setWidth(SB_CB_WIDTH);
    cb.addStyleName(Helper.CORPUS_FONT_FORCE);
    // configure & load content
    cb.setImmediate(true);
    cb.setNewItemsAllowed(true);
    cb.setTextInputAllowed(true);
    for (String annoname : this.annonames) {
        cb.addItem(annoname);
    }
    cb.setFilteringMode(AbstractSelect.Filtering.FILTERINGMODE_OFF);
    cb.addListener((FieldEvents.TextChangeListener) this);
    sb.addComponent(cb);
    HorizontalLayout sbtoolbar = new HorizontalLayout();
    sbtoolbar.setSpacing(true);
    // searchbox tickbox for regex
    CheckBox tb = new CheckBox("Regex");
    tb.setImmediate(true);
    tb.setValue(isRegex);
    sbtoolbar.addComponent(tb);
    tb.addValueChangeListener(new ValueChangeListener() {
        // TODO make this into a nice subroutine
        @Override
        public void valueChange(ValueChangeEvent event) {
            boolean r = reBox.getValue();
            if (!r) {
                SpanBox.buildBoxValues(cb, ebene, sq);
            } else if (cb.getValue() != null) {
                String escapedItem = sq.escapeRegexCharacters(cb.getValue().toString());
                cb.addItem(escapedItem);
                cb.setValue(escapedItem);
            }
        }
    });
    reBox = tb;
    // close the searchbox
    btClose = new Button(BUTTON_CLOSE_LABEL, (Button.ClickListener) this);
    btClose.setStyleName(ChameleonTheme.BUTTON_SMALL);
    sbtoolbar.addComponent(btClose);
    // make visable
    sb.addComponent(sbtoolbar);
    setContent(sb);
}

---

From source file:annis.gui.flatquerybuilder.VerticalNode.java

License:Apache License

public VerticalNode(String ebene, String value, FlatQueryBuilder sq, boolean isRegex, boolean negativeSearch) {
    this.sq = sq;
    v = new VerticalLayout();
    v.setSpacing(true);//from w w  w  .j av  a2  s  .  c  om
    vframe = new VerticalLayout();
    vframe.setSpacing(true);
    sboxes = new ArrayList<>();
    btClose = new Button(SearchBox.BUTTON_CLOSE_LABEL, (Button.ClickListener) this);
    btClose.setStyleName(ChameleonTheme.BUTTON_SMALL);
    SearchBox sb = new SearchBox(ebene, sq, this, isRegex, negativeSearch);
    if (value != null) {
        sb.setValue(value);
    }
    sboxes.add(sb);
    annonames = sq.getAvailableAnnotationNames();
    am = new AddMenu(sq, this, ebene);
    vframe.addComponent(btClose);
    vframe.setComponentAlignment(btClose, Alignment.TOP_RIGHT);
    v.addComponent(sb);
    vframe.addComponent(v);
    vframe.addComponent(am);
    vframe.setComponentAlignment(am, Alignment.BOTTOM_RIGHT);
    setWidth(WIDTH);
    setContent(vframe);
}

---

From source file:annis.gui.ReportBugWindow.java

License:Apache License

public ReportBugWindow(final String bugEMailAddress, final byte[] screenImage, final String imageMimeType,
        Throwable cause) {/*ww  w. ja  v a2  s.  c o  m*/
    this.cause = cause;

    setSizeUndefined();
    setCaption("Report Problem");

    ReportFormLayout layout = new ReportFormLayout();
    setContent(layout);

    layout.setWidth("100%");
    layout.setHeight("-1px");

    setHeight("420px");
    setWidth("750px");

    form = new FieldGroup(new BeanItem<>(new BugReport()));
    form.bindMemberFields(layout);
    form.setBuffered(true);

    final ReportBugWindow finalThis = this;
    btSubmit = new Button("Submit problem report", new Button.ClickListener() {

        @Override
        public void buttonClick(ClickEvent event) {
            try {
                form.commit();

                if (sendBugReport(bugEMailAddress, screenImage, imageMimeType)) {
                    Notification.show("Problem report was sent",
                            "We will answer your problem report as soon as possible",
                            Notification.Type.HUMANIZED_MESSAGE);
                }

                UI.getCurrent().removeWindow(finalThis);

            } catch (FieldGroup.CommitException ex) {
                List<String> errorFields = new LinkedList<>();
                for (Field f : form.getFields()) {
                    if (f instanceof AbstractComponent) {
                        AbstractComponent c = (AbstractComponent) f;
                        if (f.isValid()) {
                            c.setComponentError(null);
                        } else {
                            errorFields.add(f.getCaption());
                            c.setComponentError(new UserError("Validation failed: "));
                        }
                    }
                } // for each field
                String message = "Please check the error messages "
                        + "(place mouse over red triangle) for the following fields:<br />";
                message = message + StringUtils.join(errorFields, ",<br/>");
                Notification notify = new Notification("Validation failed", message,
                        Notification.Type.WARNING_MESSAGE, true);
                notify.show(UI.getCurrent().getPage());
            } catch (Exception ex) {
                log.error("Could not send bug report", ex);
                Notification.show("Could not send bug report", ex.getMessage(),
                        Notification.Type.WARNING_MESSAGE);
            }
        }
    });

    btCancel = new Button("Cancel", new Button.ClickListener() {

        @Override
        public void buttonClick(ClickEvent event) {
            form.discard();
            UI.getCurrent().removeWindow(finalThis);
        }
    });

    addScreenshotPreview(layout, screenImage, imageMimeType);

    HorizontalLayout buttons = new HorizontalLayout();
    buttons.addComponent(btSubmit);
    buttons.addComponent(btCancel);

    layout.addComponent(buttons);

}

---

From source file:annis.gui.ReportBugWindow.java

License:Apache License

private void addScreenshotPreview(Layout layout, final byte[] rawImage, String mimeType) {
    StreamResource res = new StreamResource(new ScreenDumpStreamSource(rawImage),
            "screendump_" + UUID.randomUUID().toString() + ".png");
    res.setMIMEType(mimeType);//from   ww w.j  a v  a 2  s .c om

    final Image imgScreenshot = new Image("Attached screenshot", res);
    imgScreenshot.setAlternateText(
            "Screenshot of the ANNIS browser window, " + "no other window or part of the desktop is captured.");
    imgScreenshot.setVisible(false);
    imgScreenshot.setWidth("100%");

    Button btShowScreenshot = new Button("Show attached screenshot",
            new ShowScreenshotClickListener(imgScreenshot));
    btShowScreenshot.addStyleName(BaseTheme.BUTTON_LINK);
    btShowScreenshot.setIcon(FontAwesome.PLUS_SQUARE_O);

    layout.addComponent(btShowScreenshot);
    layout.addComponent(imgScreenshot);
}

---

From source file:at.jku.ce.adaptivetesting.vaadin.ui.core.VaadinUI.java

License:LGPL

public VaadinUI() {
    // Set up the Navigator
    navigator = new Navigator(this, this);

    // Create Welcome Screen
    MainUI mainScreen = new MainUI();
    mainScreen.setMargin(true);//from   ww  w  . j  a v  a 2s.c o m
    Button start = new Button("Start", e -> {
        navigator.navigateTo(Views.TEST.toString());
    });
    start.setWidth("40%");
    start.setHeight("40%");
    //mainScreen.addComponent(new HtmlLabel(HtmlUtils.center("h1", "Willkommen zur " + productData)));
    mainScreen.addComponent(new HtmlLabel(HtmlUtils.center("h2", "Bitte klicke den <b>" + start.getCaption()
            + "</b> Button um mit dem Rechnungswesentest zu beginnen!")));
    mainScreen.addComponent(start);
    mainScreen.setComponentAlignment(start, Alignment.MIDDLE_CENTER);

    navigator.addView(Views.DEFAULT.toString(), mainScreen);
    // Question view
    // Change this to the questionManager you like
    final QuestionManager manager = new AccountingQuestionManager("Rechnungswesentest");
    navigator.addView(Views.TEST.toString(), manager);
    navigator.addView(Views.Log.toString(), new LogView(new File(Servlet.getLogFileName())));
    navigator.addView(Views.Admin.toString(), new AdminView(manager));
    navigator.addView(Views.Results.toString(), new ResultView(manager));
    navigator.setErrorView(mainScreen);
    LogHelper.logInfo("Startup completed");
}

---

From source file:at.jku.ce.adaptivetesting.vaadin.ui.topic.accounting.AccountingQuestionManager.java

License:LGPL

@Override
public void startQuiz(StudentData student) {
    // Remove everything from the layout, save it for displaying after
    // clicking OK
    final Component[] components = new Component[getComponentCount()];
    for (int i = 0; i < components.length; i++) {
        components[i] = getComponent(i);
    }//  w w  w  .jav  a 2  s  .  co m
    removeAllComponents();
    // Create first page
    VerticalLayout layout = new VerticalLayout();
    addComponent(layout);

    ComboBox gender = new ComboBox("Geschlecht");
    String[] genderItems = { "mnnlich", "weiblich" };
    gender.addItems(genderItems);
    //gender.setSizeFull();
    gender.setEnabled(true);

    Label gradeLastYear = new Label("<p/>Welche Note hattest du im letzten Zeugnis in ...", ContentMode.HTML);
    TextField gradeLastYearRW = new TextField("Rechungswesen");
    TextField gradeLastYearBWL = new TextField("BWL/BVW");
    TextField gradeLastYearD = new TextField("Deutsch");
    TextField gradeLastYearE = new TextField("Englisch");
    TextField gradeLastYearM = new TextField("Mathematik");

    Label gradeLastTest = new Label("<p/>Welche Note hattest du auf die letzte Schularbeit aus ...",
            ContentMode.HTML);
    TextField gradeLastTestRW = new TextField("Rechungswesen");
    TextField gradeLastTestBWL = new TextField("BWL/BVW");
    TextField gradeLastTestD = new TextField("Deutsch");
    TextField gradeLastTestE = new TextField("Englisch");
    TextField gradeLastTestM = new TextField("Mathematik");

    Label classNameLabel = new Label("<p/>Welche Klasse besuchst du?", ContentMode.HTML);
    TextField className = new TextField("(z.B. 4A)");

    Label studentCode = new Label(
            "<p/>Damit deine Antworten mit spteren Fragebogenergebnissen verknpft werden knnen, ist es notwendig, einen anonymen Benutzernamen anzulegen. Erstelle deinen persnlichen Code nach folgendem Muster:",
            ContentMode.HTML);
    TextField studentCodeC1 = new TextField(
            "Tag und Monat der Geburt (DDMM), z.B. \"1008\" fr Geburtstag am 10. August");
    TextField studentCodeC2 = new TextField(
            "Zwei Anfangsbuchstaben des Vornamens, z.B. \"St\" fr \"Stefan\"");
    TextField studentCodeC3 = new TextField(
            "Zwei Anfangsbuchstaben des Vornamens der Mutter,, z.B. \"Jo\" fr \"Johanna\"");

    Label thankYou = new Label("<p/>Danke fr die Angaben.<p/>", ContentMode.HTML);
    Button cont = new Button("Weiter", e -> {
        removeAllComponents();
        studentIDCode = new String(
                studentCodeC1.getValue() + studentCodeC2.getValue() + studentCodeC3.getValue());
        studentGender = (gender.getValue() == null) ? new String("undefined") : gender.getValue().toString();
        studentClass = className.getValue();

        studentGradesLastYear = new HashMap();
        studentGradesLastYear.put("RW", gradeLastYearRW.getValue());
        studentGradesLastYear.put("BWL", gradeLastYearBWL.getValue());
        studentGradesLastYear.put("D", gradeLastYearD.getValue());
        studentGradesLastYear.put("E", gradeLastYearE.getValue());
        studentGradesLastYear.put("M", gradeLastYearM.getValue());

        studentGradesLastTest = new HashMap();
        studentGradesLastTest.put("RW", gradeLastTestRW.getValue());
        studentGradesLastTest.put("BWL", gradeLastTestBWL.getValue());
        studentGradesLastTest.put("D", gradeLastTestD.getValue());
        studentGradesLastTest.put("E", gradeLastTestE.getValue());
        studentGradesLastTest.put("M", gradeLastTestM.getValue());

        this.student = new StudentData(studentIDCode, studentGender, studentClass, studentGradesLastYear,
                studentGradesLastTest);
        LogHelper.logInfo("StudentData: " + this.student.toString());

        displayCompanyInfo(components);
    });

    layout.addComponent(HtmlLabel.getCenteredLabel("h1", "Fragen zu deiner Person"));// Title of the quiz

    layout.addComponent(gender);

    layout.addComponent(gradeLastYear);
    layout.addComponent(gradeLastYearRW);
    layout.addComponent(gradeLastYearBWL);
    layout.addComponent(gradeLastYearD);
    layout.addComponent(gradeLastYearE);
    layout.addComponent(gradeLastYearM);

    layout.addComponent(gradeLastTest);
    layout.addComponent(gradeLastTestRW);
    layout.addComponent(gradeLastTestBWL);
    layout.addComponent(gradeLastTestD);
    layout.addComponent(gradeLastTestE);
    layout.addComponent(gradeLastTestM);

    layout.addComponent(classNameLabel);
    layout.addComponent(className);

    layout.addComponent(studentCode);
    layout.addComponent(studentCodeC1);
    layout.addComponent(studentCodeC2);
    layout.addComponent(studentCodeC3);

    layout.addComponent(thankYou);
    layout.addComponent(cont);
    layout.setComponentAlignment(components[0], Alignment.MIDDLE_CENTER);
}

---

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