Example usage for com.vaadin.ui Button setIcon

Introduction

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

Prototype

@Override
public void setIcon(Resource icon) 

Source Link

Document

Sets the component's icon.

Usage

From source file:com.etest.view.testbank.CellCaseWindow.java

Window modifyCaseWindow(CellCase cellCase) {
    VerticalLayout v = new VerticalLayout();
    v.setWidth("100%");
    v.setMargin(true);//from   w ww.j  ava  2 s  .c  o m
    v.setSpacing(true);

    Window sub = new Window("MODIFY");
    sub.setWidth("400px");
    sub.setModal(true);
    sub.center();

    ComboBox actionDone = new ComboBox("Action: ");
    actionDone.setWidth("70%");
    actionDone.addStyleName(ValoTheme.COMBOBOX_SMALL);
    actionDone.setNullSelectionAllowed(false);
    actionDone.addItem("resolved");
    actionDone.addItem("clarified");
    actionDone.addItem("modified");
    actionDone.setImmediate(true);
    v.addComponent(actionDone);

    TextArea remarks = new TextArea("Remarks: ");
    remarks.setWidth("100%");
    remarks.setRows(3);
    v.addComponent(remarks);

    Button modify = new Button("UPDATE");
    modify.setWidth("70%");
    modify.setIcon(FontAwesome.EDIT);
    modify.addStyleName(ValoTheme.BUTTON_PRIMARY);
    modify.addStyleName(ValoTheme.BUTTON_SMALL);
    modify.addClickListener((Button.ClickEvent event) -> {
        if (remarks.getValue() == null || remarks.getValue().trim().isEmpty()) {
            Notification.show("Add remarks!", Notification.Type.WARNING_MESSAGE);
            return;
        }

        if (actionDone.getValue() == null) {
            Notification.show("Add action!", Notification.Type.WARNING_MESSAGE);
            return;
        }

        cellCase.setActionDone(actionDone.getValue().toString());
        cellCase.setRemarks(remarks.getValue().trim());
        boolean result = ccs.modifyCellCase(cellCase);
        if (result) {
            Notification.show("Case has been Modified!", Notification.Type.TRAY_NOTIFICATION);
            sub.close();
            close();
        }
    });
    v.addComponent(modify);

    sub.setContent(v);
    sub.getContent().setHeightUndefined();

    return sub;
}

---

From source file:com.etest.view.testbank.cellitem.CellCaseItemWindow.java

Table populateDataTable() {
    table.removeAllItems();/*from  w  ww.j ava 2s  . c  om*/
    int i = 0;
    for (CellItem ci : cis.getCellItemByCase(getCellCaseId())) {
        VerticalLayout v = new VerticalLayout();
        v.setSizeFull();

        Button edit = new Button("modify");
        edit.setWidth("100%");
        edit.setData(ci.getCellItemId());
        edit.setIcon(FontAwesome.PENCIL);
        edit.addStyleName(ValoTheme.BUTTON_LINK);
        edit.addStyleName(ValoTheme.BUTTON_TINY);
        edit.addStyleName(ValoTheme.BUTTON_QUIET);
        edit.addClickListener(modifyBtnClickListener);
        v.addComponent(edit);
        v.setComponentAlignment(edit, Alignment.MIDDLE_LEFT);

        Button approve = new Button("status");
        approve.setWidth("100%");
        approve.setData(ci.getCellItemId());
        approve.addStyleName(ValoTheme.BUTTON_LINK);
        approve.addStyleName(ValoTheme.BUTTON_TINY);
        approve.addStyleName(ValoTheme.BUTTON_QUIET);
        v.addComponent(approve);
        v.setComponentAlignment(approve, Alignment.MIDDLE_LEFT);

        Button view = new Button("view");
        view.setWidth("100%");
        view.setData(ci.getCellItemId());
        view.setIcon(FontAwesome.PLAY_CIRCLE);
        view.addStyleName(ValoTheme.BUTTON_LINK);
        view.addStyleName(ValoTheme.BUTTON_TINY);
        view.addStyleName(ValoTheme.BUTTON_QUIET);
        view.addClickListener(modifyBtnClickListener);
        v.addComponent(view);
        v.setComponentAlignment(view, Alignment.MIDDLE_LEFT);

        if (ci.getApproveItemStatus() == 0) {
            approve.setIcon(FontAwesome.THUMBS_DOWN);
        } else {
            approve.setIcon(FontAwesome.THUMBS_UP);
        }

        Label label = new Label(ci.getItem());
        label.setStyleName("label-padding");

        table.addItem(new Object[] { ci.getCellItemId(), label, v }, i);
        i++;
    }
    table.setPageLength(table.size());

    return table;
}

---

From source file:com.etest.view.testbank.cellitem.CellItemWindow.java

FormLayout buildForms() {
    FormLayout form = new FormLayout();
    form.setWidth("100%");
    form.setMargin(true);/* w  w  w  .  j a v a 2s  . c o  m*/
    form.setSpacing(true);

    HorizontalLayout hlayout = new HorizontalLayout();
    hlayout.setWidth("100%");

    Button helpBtn = new Button("HELP");
    helpBtn.setWidthUndefined();
    helpBtn.setIcon(FontAwesome.TASKS);
    helpBtn.addStyleName(ValoTheme.BUTTON_PRIMARY);
    helpBtn.addStyleName(ValoTheme.BUTTON_SMALL);
    helpBtn.addClickListener((Button.ClickEvent event) -> {
        Window sub = new MultipleChoiceHelpViewer();
        if (sub.getParent() == null) {
            UI.getCurrent().addWindow(sub);
        }
    });
    hlayout.addComponent(helpBtn);
    hlayout.setComponentAlignment(helpBtn, Alignment.MIDDLE_RIGHT);
    form.addComponent(hlayout);

    bloomsTaxonomy.setCaption("Blooms Class: ");
    bloomsTaxonomy.setWidth("30%");
    form.addComponent(bloomsTaxonomy);

    stem = new TextArea("Stem: ");
    stem.setWidth("100%");
    stem.setRows(5);
    stem.setWordwrap(true);
    form.addComponent(stem);

    HorizontalLayout h1 = new HorizontalLayout();
    h1.setCaption("Option A:");
    h1.setWidth("100%");
    h1.setSpacing(true);

    optionA = new CommonTextField("add option A", null);
    optionA.setWidth("500px");
    h1.addComponent(optionA);

    Button optionABtn = new CommonButton("OPTION A");
    optionABtn.setWidth("120px");
    optionABtn.addClickListener(updateOptionAndKeyListerner);
    h1.addComponent(optionABtn);
    h1.setComponentAlignment(optionABtn, Alignment.MIDDLE_RIGHT);
    optionABtn.setVisible(isEdit());
    form.addComponent(h1);

    HorizontalLayout h2 = new HorizontalLayout();
    h2.setCaption("Key A:");
    h2.setWidth("100%");
    h2.setSpacing(true);

    keyA = new CommonTextField("Enter a Key for Option A", null);
    keyA.setWidth("500px");
    h2.addComponent(keyA);

    Button keyABtn = new CommonButton("KEY A");
    keyABtn.setWidth("120px");
    keyABtn.addClickListener(updateOptionAndKeyListerner);
    h2.addComponent(keyABtn);
    h2.setComponentAlignment(keyABtn, Alignment.MIDDLE_RIGHT);
    keyABtn.setVisible(isEdit());
    form.addComponent(h2);

    HorizontalLayout h3 = new HorizontalLayout();
    h3.setCaption("Option B:");
    h3.setWidth("100%");
    h3.setSpacing(true);

    optionB = new CommonTextField("add option B", null);
    optionB.setWidth("500px");
    h3.addComponent(optionB);

    Button optionBBtn = new CommonButton("OPTION B");
    optionBBtn.setWidth("120px");
    optionBBtn.addClickListener(updateOptionAndKeyListerner);
    h3.addComponent(optionBBtn);
    h3.setComponentAlignment(optionBBtn, Alignment.MIDDLE_RIGHT);
    optionBBtn.setVisible(isEdit());
    form.addComponent(h3);

    HorizontalLayout h4 = new HorizontalLayout();
    h4.setCaption("Key B:");
    h4.setWidth("100%");
    h4.setSpacing(true);

    keyB = new CommonTextField("Enter a Key for Option B", null);
    keyB.setWidth("500px");
    h4.addComponent(keyB);

    Button keyBBtn = new CommonButton("KEY B");
    keyBBtn.setWidth("120px");
    keyBBtn.addClickListener(updateOptionAndKeyListerner);
    h4.addComponent(keyBBtn);
    h4.setComponentAlignment(keyBBtn, Alignment.MIDDLE_RIGHT);
    keyBBtn.setVisible(isEdit());
    form.addComponent(h4);

    HorizontalLayout h5 = new HorizontalLayout();
    h5.setCaption("Option C:");
    h5.setWidth("100%");
    h5.setSpacing(true);

    optionC = new CommonTextField("add option C", null);
    optionC.setWidth("500px");
    h5.addComponent(optionC);

    Button optionCBtn = new CommonButton("OPTION C");
    optionCBtn.setWidth("120px");
    optionCBtn.addClickListener(updateOptionAndKeyListerner);
    h5.addComponent(optionCBtn);
    h5.setComponentAlignment(optionCBtn, Alignment.TOP_RIGHT);
    optionCBtn.setVisible(isEdit());
    form.addComponent(h5);

    HorizontalLayout h6 = new HorizontalLayout();
    h6.setCaption("Key C:");
    h6.setWidth("100%");
    h6.setSpacing(true);

    keyC = new CommonTextField("Enter a Key for Option C", null);
    keyC.setWidth("500px");
    h6.addComponent(keyC);

    Button keyCBtn = new CommonButton("KEY C");
    keyCBtn.setWidth("120px");
    keyCBtn.addClickListener(updateOptionAndKeyListerner);
    h6.addComponent(keyCBtn);
    h6.setComponentAlignment(keyCBtn, Alignment.MIDDLE_RIGHT);
    keyCBtn.setVisible(isEdit());
    form.addComponent(h6);

    HorizontalLayout h7 = new HorizontalLayout();
    h7.setCaption("Option D:");
    h7.setWidth("100%");
    h7.setSpacing(true);

    optionD = new CommonTextField("add option D", null);
    optionD.setWidth("500px");
    h7.addComponent(optionD);

    Button optionDBtn = new CommonButton("OPTION D");
    optionDBtn.setWidth("120px");
    optionDBtn.addClickListener(updateOptionAndKeyListerner);
    h7.addComponent(optionDBtn);
    h7.setComponentAlignment(optionDBtn, Alignment.MIDDLE_RIGHT);
    optionDBtn.setVisible(isEdit());
    form.addComponent(h7);

    HorizontalLayout h8 = new HorizontalLayout();
    h8.setCaption("Key D:");
    h8.setWidth("100%");
    h8.setSpacing(true);

    keyD = new CommonTextField("Enter a Key for Option D", null);
    keyD.setWidth("500px");
    h8.addComponent(keyD);

    Button keyDBtn = new CommonButton("KEY D");
    keyDBtn.setWidth("120px");
    keyDBtn.addClickListener(updateOptionAndKeyListerner);
    h8.addComponent(keyDBtn);
    h8.setComponentAlignment(keyDBtn, Alignment.MIDDLE_RIGHT);
    keyDBtn.setVisible(isEdit());
    form.addComponent(h8);

    HorizontalLayout h = new HorizontalLayout();
    h.setWidth("100%");

    Button save = new Button("SAVE");
    save.setWidth("200px");
    save.setIcon(FontAwesome.SAVE);
    save.addStyleName(ValoTheme.BUTTON_PRIMARY);
    save.addStyleName(ValoTheme.BUTTON_SMALL);
    save.addClickListener(buttonClickListener);

    Button remove = new Button("ARCHIVE/REMOVE ITEM?");
    remove.setWidth("200px");
    remove.setIcon(FontAwesome.ARCHIVE);
    remove.addStyleName(ValoTheme.BUTTON_PRIMARY);
    remove.addStyleName(ValoTheme.BUTTON_SMALL);
    remove.addClickListener(buttonClickListener);

    Button approve = new Button("APPROVE ITEM?");
    approve.setWidth("200px");
    approve.setIcon(FontAwesome.THUMBS_O_UP);
    approve.addStyleName(ValoTheme.BUTTON_PRIMARY);
    approve.addStyleName(ValoTheme.BUTTON_SMALL);
    approve.addClickListener(buttonClickListener);

    Button edit = new Button("UPDATE");
    edit.setWidth("200px");
    edit.setIcon(FontAwesome.SAVE);
    edit.addStyleName(ValoTheme.BUTTON_PRIMARY);
    edit.addStyleName(ValoTheme.BUTTON_SMALL);
    edit.addClickListener(buttonClickListener);

    if (getCellItemId() != 0) {
        CellItem ci = cis.getCellItemById(getCellItemId());
        bloomsTaxonomy.setValue(ci.getBloomsClassId());
        bloomsTaxonomy.addValueChangeListener((Property.ValueChangeEvent event) -> {
            isBloomsChanged = true;
        });

        stem.setValue(ci.getItem());
        stem.addTextChangeListener((FieldEvents.TextChangeEvent event) -> {
            if (!stem.getValue().trim().equals(event.getText().trim())) {
                isStemChanged = true;
            }
        });

        /**
         * OPTION A
         */
        optionA.setValue(ci.getOptionA());
        isOptionAKeyExist = k.isKeyExist(getCellItemId(), ci.getOptionA());
        if (isOptionAKeyExist) {
            keyA.setValue(k.getItemKey(getCellItemId(), ci.getOptionA()));
        }
        keyA.setData(k.getItemKeyId(getCellItemId(), ci.getOptionA()));

        /**
         * OPTION B
         */
        optionB.setValue(ci.getOptionB());
        isOptionBKeyExist = k.isKeyExist(getCellItemId(), ci.getOptionB());
        if (isOptionBKeyExist) {
            keyB.setValue(k.getItemKey(getCellItemId(), ci.getOptionB()));
        }
        keyB.setData(k.getItemKeyId(getCellItemId(), ci.getOptionB()));

        /**
         * OPTION C
         */
        optionC.setValue(ci.getOptionC());
        isOptionCKeyExist = k.isKeyExist(getCellItemId(), ci.getOptionC());
        if (isOptionCKeyExist) {
            keyC.setValue(k.getItemKey(getCellItemId(), ci.getOptionC()));
        }
        keyC.setData(k.getItemKeyId(getCellItemId(), ci.getOptionC()));

        /**
         * OPTION D
         */
        optionD.setValue(ci.getOptionD());
        isOptionDKeyExist = k.isKeyExist(getCellItemId(), ci.getOptionD());
        if (isOptionDKeyExist) {
            keyD.setValue(k.getItemKey(getCellItemId(), ci.getOptionD()));
        }
        keyD.setData(k.getItemKeyId(getCellItemId(), ci.getOptionD()));

        h.addComponent(remove);
        h.setComponentAlignment(remove, Alignment.MIDDLE_RIGHT);

        h.addComponent(approve);
        h.setComponentAlignment(approve, Alignment.MIDDLE_RIGHT);

        h.addComponent(edit);
        h.setComponentAlignment(edit, Alignment.MIDDLE_RIGHT);
        form.addComponent(h);
    } else {
        h.addComponent(save);
        h.setComponentAlignment(save, Alignment.MIDDLE_RIGHT);
        form.addComponent(h);
    }

    return form;
}

---

From source file:com.etest.view.testbank.cellitem.CellItemWindow.java

Window modifyCellItemWindow(CellItem ci) {
    VerticalLayout v = new VerticalLayout();
    v.setWidth("100%");
    v.setMargin(true);// w w  w.  j a va 2s .c o  m
    v.setSpacing(true);

    Window sub = new Window("MODIFY");
    sub.setWidth("400px");
    sub.setModal(true);
    sub.center();

    ComboBox actionDone = new ComboBox("Action: ");
    actionDone.setWidth("70%");
    actionDone.addStyleName(ValoTheme.COMBOBOX_SMALL);
    actionDone.setNullSelectionAllowed(false);
    actionDone.addItem("resolved");
    actionDone.addItem("clarified");
    actionDone.addItem("modified");
    actionDone.setImmediate(true);
    v.addComponent(actionDone);

    TextArea remarks = new TextArea("Remarks: ");
    remarks.setWidth("100%");
    remarks.setRows(3);
    v.addComponent(remarks);

    Button modify = new Button("UPDATE");
    modify.setWidth("70%");
    modify.setIcon(FontAwesome.EDIT);
    modify.addStyleName(ValoTheme.BUTTON_PRIMARY);
    modify.addStyleName(ValoTheme.BUTTON_SMALL);
    modify.addClickListener((Button.ClickEvent event) -> {
        if (remarks.getValue() == null || remarks.getValue().trim().isEmpty()) {
            Notification.show("Add remarks!", Notification.Type.WARNING_MESSAGE);
            return;
        }

        if (actionDone.getValue() == null) {
            Notification.show("Add action!", Notification.Type.WARNING_MESSAGE);
            return;
        }

        ci.setRemarks(remarks.getValue().trim());
        ci.setActionDone(actionDone.getValue().toString());
        boolean result = cis.modifyCellItem(ci);
        if (result) {
            sub.close();
            close();
        }
    });
    v.addComponent(modify);

    sub.setContent(v);
    sub.getContent().setHeightUndefined();

    return sub;
}

---

From source file:com.etest.view.testbank.cellitem.CellItemWindow.java

Window modifyKeyWindow(int itemKeyId, int cellItemId, String keyValue, String optionValue,
        boolean isOptionKeyExist) {
    VerticalLayout v = new VerticalLayout();
    v.setWidth("100%");
    v.setMargin(true);/*  w  ww.jav  a2s .c o m*/
    v.setSpacing(true);

    Window sub = new Window("MODIFY");
    sub.setWidth("400px");
    sub.setModal(true);
    sub.center();

    ComboBox actionDone = new ComboBox("Action: ");
    actionDone.setWidth("70%");
    actionDone.addStyleName(ValoTheme.COMBOBOX_SMALL);
    actionDone.setNullSelectionAllowed(false);
    actionDone.addItem("resolved");
    actionDone.addItem("clarified");
    actionDone.addItem("modified");
    actionDone.setImmediate(true);
    v.addComponent(actionDone);

    TextArea remarks = new TextArea("Remarks: ");
    remarks.setWidth("100%");
    remarks.setRows(3);
    v.addComponent(remarks);

    Button modify = new Button("UPDATE");
    modify.setWidth("70%");
    modify.setIcon(FontAwesome.EDIT);
    modify.addStyleName(ValoTheme.BUTTON_PRIMARY);
    modify.addStyleName(ValoTheme.BUTTON_SMALL);
    modify.addClickListener((Button.ClickEvent event) -> {
        if (remarks.getValue() == null || remarks.getValue().trim().isEmpty()) {
            Notification.show("Add remarks!", Notification.Type.WARNING_MESSAGE);
            return;
        }

        if (actionDone.getValue() == null) {
            Notification.show("Add action!", Notification.Type.WARNING_MESSAGE);
            return;
        }

        boolean result = k.modifyItemKey(itemKeyId, cellItemId, keyValue, optionValue, isOptionKeyExist,
                remarks.getValue().trim(), actionDone.getValue().toString());
        if (result) {
            Notification.show("Key SUCCESSFULLY modified", Notification.Type.TRAY_NOTIFICATION);
            sub.close();
        }
    });
    v.addComponent(modify);

    sub.setContent(v);
    sub.getContent().setHeightUndefined();

    return sub;
}

---

From source file:com.etest.view.testbank.cellitem.ViewStemWindow.java

Table populateDataTable() {
    table.removeAllItems();/*from ww  w. j  av  a 2 s.c o  m*/
    int i = 0;
    for (ItemKeys key : k.getItemKeysByCellItemId(getCellItemId())) {
        Button delete = new Button("remove");
        delete.setWidth("100%");
        delete.setData(key.getItemKeyId());
        delete.setIcon(FontAwesome.TRASH_O);
        delete.addStyleName(ValoTheme.BUTTON_LINK);
        delete.addStyleName(ValoTheme.BUTTON_TINY);
        delete.addStyleName(ValoTheme.BUTTON_QUIET);
        delete.addClickListener(removeBtnClickListener);

        table.addItem(new Object[] { key.getItemKey(), key.getAnswer(), delete }, i);
        i++;
    }
    table.setPageLength(table.size());

    return table;
}

---

From source file:com.etest.view.testbank.cellitem.ViewStemWindow.java

Window removeKeyWindow(int itemKeyId) {
    Window sub = new Window("REMOVE KEY");
    sub.setWidth("300px");
    sub.setModal(true);//from  w  w w. j  a  va  2 s.c om
    sub.center();

    VerticalLayout v = new VerticalLayout();
    v.setWidth("100%");
    v.setMargin(true);

    Button remove = new Button("CONFIRM REMOVE KEY?");
    remove.setWidth("100%");
    remove.setIcon(FontAwesome.TRASH_O);
    remove.addStyleName(ValoTheme.BUTTON_PRIMARY);
    remove.addStyleName(ValoTheme.BUTTON_SMALL);
    remove.addClickListener((Button.ClickEvent event) -> {
        boolean result = k.removeItemKey(itemKeyId);
        if (result) {
            sub.close();
            close();
        }
    });
    v.addComponent(remove);

    sub.setContent(v);
    sub.getContent().setHeightUndefined();

    return sub;
}

---

From source file:com.etest.view.tq.itemanalysis.TQItemAnalysisUI.java

public Table populateDataTable() {
    removeAllItems();//w ww.ja  v a 2 s.co m
    int i = 0;
    for (TQCoverage t : tq.getAllTQCoverage()) {
        VerticalLayout v = new VerticalLayout();
        v.setWidth("100%");

        Button analyze = new Button();
        analyze.setWidthUndefined();
        analyze.setData(t.getTqCoverageId());
        analyze.setCaption((t.getAnalyzed() == 0) ? "Unanalyze" : "Analyzed");
        analyze.setIcon(FontAwesome.BULLSEYE);
        analyze.addStyleName(ValoTheme.BUTTON_LINK);
        analyze.addStyleName(ValoTheme.BUTTON_TINY);
        analyze.addStyleName(ValoTheme.BUTTON_QUIET);
        analyze.addStyleName("button-container");
        analyze.setEnabled(t.getAnalyzed() == 0);
        analyze.addClickListener(buttonClickListener);
        v.addComponent(analyze);
        v.setComponentAlignment(analyze, Alignment.MIDDLE_LEFT);

        Button view = new Button("View");
        view.setWidthUndefined();
        view.setData(t.getTqCoverageId());
        view.setIcon(FontAwesome.VIDEO_CAMERA);
        view.addStyleName(ValoTheme.BUTTON_LINK);
        view.addStyleName(ValoTheme.BUTTON_TINY);
        view.addStyleName(ValoTheme.BUTTON_QUIET);
        view.addStyleName("button-container");
        view.setVisible((t.getAnalyzed() != 0));
        view.addClickListener(buttonClickListener);
        v.addComponent(view);
        v.setComponentAlignment(view, Alignment.MIDDLE_LEFT);

        addItem(new Object[] { t.getExamTitle(), cs.getCurriculumById(t.getCurriculumId()).getSubject(),
                t.getDateCreated(), t.getTotalHoursCoverage(), t.getTotalItems(), v }, i);
        i++;
    }
    setPageLength(size());

    return this;
}

---

From source file:com.etest.view.tq.TQCoverageUI.java

Component buildTQCoverageForms() {
    FormLayout form = new FormLayout();
    form.setWidth("500px");

    examTitle.setCaption("Exam Title: ");
    examTitle.setWidth("100%");
    examTitle.setIcon(FontAwesome.TAG);/* w w w  . j  a  va 2  s .  co  m*/
    examTitle.addStyleName(ValoTheme.TEXTFIELD_SMALL);
    form.addComponent(examTitle);

    subject.setCaption("Subject: ");
    subject.setWidth("100%");
    subject.setIcon(FontAwesome.BOOK);
    subject.addStyleName(ValoTheme.COMBOBOX_SMALL);
    subject.addValueChangeListener((new CurriculumPropertyChangeListener(topic)));
    form.addComponent(subject);

    totalItems.setCaption("No. of Test Items: ");
    totalItems.setWidth("50%");
    totalItems.setValue("0");
    totalItems.setIcon(FontAwesome.TAG);
    totalItems.addStyleName(ValoTheme.TEXTFIELD_SMALL);
    totalItems.addValueChangeListener(fieldValueListener);
    form.addComponent(totalItems);

    Button button = new Button("ADD ROW");
    button.setWidth("50%");
    button.setIcon(FontAwesome.GEAR);
    button.addStyleName(ValoTheme.BUTTON_PRIMARY);
    button.addStyleName(ValoTheme.BUTTON_SMALL);
    button.addClickListener((Button.ClickEvent event) -> {
        if (examTitle.getValue() == null || examTitle.getValue().trim().isEmpty()) {
            Notification.show("Select an Exam Title!", Notification.Type.WARNING_MESSAGE);
            return;
        }

        if (subject.getValue() == null) {
            Notification.show("Select a Subject!", Notification.Type.WARNING_MESSAGE);
            return;
        }

        if (totalItems.getValue() == null || totalItems.getValue().trim().isEmpty()) {
            Notification.show("Enter No. of Test Items!", Notification.Type.WARNING_MESSAGE);
            return;
        }

        grid.addRow(null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
                null, null, null, null, null, null, null, null, null, null, null, null, null, null, "del");
    });
    form.addComponent(button);

    return form;
}

---

From source file:com.etest.view.tq.TQCoverageUI.java

Window getTopicWindow(Item item) {
    Window sub = new Window("TOPIC: ");
    sub.setWidth("500px");
    sub.setModal(true);// w  ww.java  2 s  .c om
    sub.center();
    sub.setResizable(false);

    VerticalLayout v = new VerticalLayout();
    v.setWidth("100%");
    v.setMargin(true);
    v.setSpacing(true);

    topic.setInputPrompt("Select a Topic..");
    topic.addStyleName(ValoTheme.COMBOBOX_SMALL);
    topic.setWidth("100%");
    topic.addValueChangeListener((Property.ValueChangeEvent event) -> {
        if (event.getProperty().getValue() == null) {
        } else {
            syllabusId = (int) event.getProperty().getValue();
            topicStr = topic.getItem(topic.getValue()).toString();
        }
    });
    v.addComponent(topic);

    Button button = new Button("CLOSE");
    button.setWidth("50%");
    button.setIcon(FontAwesome.TASKS);
    button.addStyleName(ValoTheme.BUTTON_PRIMARY);
    button.addStyleName(ValoTheme.BUTTON_SMALL);
    button.addClickListener((Button.ClickEvent event) -> {
        if (topic.getValue() == null) {
            Notification.show("Select a Topic!", Notification.Type.WARNING_MESSAGE);
        } else {
            populateGridRow(item);
            populateGridFooter();
        }
        sub.close();
    });
    v.addComponent(button);
    v.setComponentAlignment(button, Alignment.MIDDLE_RIGHT);

    sub.setContent(v);
    sub.getContent().setHeightUndefined();

    return sub;
}

---

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