Example usage for org.eclipse.swt.widgets Label Label

Introduction

In this page you can find the example usage for org.eclipse.swt.widgets Label Label.

Prototype

public Label(Composite parent, int style) 

Source Link

Document

Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.

Usage

From source file:org.eclipse.swt.snippets.Snippet84.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 84");
    shell.setLayout(new FillLayout());

    final Label label = new Label(shell, SWT.BORDER);
    label.setText("Drag Source");
    DragSource source = new DragSource(label, DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK);
    source.setTransfer(TextTransfer.getInstance());
    source.addDragListener(new DragSourceAdapter() {
        @Override/*from   w w  w . j a  va 2s .  c om*/
        public void dragSetData(DragSourceEvent event) {
            event.data = "Text Transferred";
        }

        @Override
        public void dragFinished(DragSourceEvent event) {
            if (event.doit) {
                String operation = null;
                switch (event.detail) {
                case DND.DROP_MOVE:
                    operation = "moved";
                    break;
                case DND.DROP_COPY:
                    operation = "copied";
                    break;
                case DND.DROP_LINK:
                    operation = "linked";
                    break;
                case DND.DROP_NONE:
                    operation = "disallowed";
                    break;
                default:
                    operation = "unknown";
                    break;
                }
                label.setText("Drag Source (data " + operation + ")");
            } else {
                label.setText("Drag Source (drag cancelled)");
            }
        }
    });

    final Text text = new Text(shell, SWT.BORDER | SWT.MULTI);
    text.setText("Drop Target");
    DropTarget target = new DropTarget(text, DND.DROP_DEFAULT | DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK);
    target.setTransfer(TextTransfer.getInstance());
    target.addDropListener(new DropTargetAdapter() {
        @Override
        public void dragEnter(DropTargetEvent event) {
            if (event.detail == DND.DROP_DEFAULT)
                event.detail = DND.DROP_COPY;
        }

        @Override
        public void dragOperationChanged(DropTargetEvent event) {
            if (event.detail == DND.DROP_DEFAULT)
                event.detail = DND.DROP_COPY;
        }

        @Override
        public void drop(DropTargetEvent event) {
            String operation = null;
            switch (event.detail) {
            case DND.DROP_MOVE:
                operation = "moved";
                break;
            case DND.DROP_COPY:
                operation = "copied";
                break;
            case DND.DROP_LINK:
                operation = "linked";
                break;
            case DND.DROP_NONE:
                operation = "disallowed";
                break;
            default:
                operation = "unknown";
                break;
            }
            text.append("\n" + operation + (String) event.data);
        }
    });

    shell.setSize(400, 400);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:org.eclipse.swt.snippets.Snippet350.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 350");
    shell.setLayout(new GridLayout(2, false));
    shell.setText("Accessible Relations");

    Label nameLabel = new Label(shell, SWT.NONE);
    nameLabel.setText("Name:");
    Text nameText = new Text(shell, SWT.BORDER);
    nameText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    Accessible accNameLabel = nameLabel.getAccessible();
    Accessible accNameText = nameText.getAccessible();
    accNameLabel.addRelation(ACC.RELATION_LABEL_FOR, accNameText);
    accNameText.addRelation(ACC.RELATION_LABELLED_BY, accNameLabel);

    Group addressGroup = new Group(shell, SWT.NONE);
    addressGroup.setText("Address");
    addressGroup.setLayout(new GridLayout(2, false));
    addressGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));

    Label streetLabel = new Label(addressGroup, SWT.NONE);
    streetLabel.setText("Street:");
    Text streetText = new Text(addressGroup, SWT.BORDER);
    streetText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    Accessible accStreetLabel = streetLabel.getAccessible();
    Accessible accStreetText = streetText.getAccessible();
    accStreetLabel.addRelation(ACC.RELATION_LABEL_FOR, accStreetText);
    accStreetText.addRelation(ACC.RELATION_LABELLED_BY, accStreetLabel);

    Label cityLabel = new Label(addressGroup, SWT.NONE);
    cityLabel.setText("City:");
    Text cityText = new Text(addressGroup, SWT.BORDER);
    cityText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
    Accessible accCityLabel = cityLabel.getAccessible();
    Accessible accCityText = cityText.getAccessible();
    accCityLabel.addRelation(ACC.RELATION_LABEL_FOR, accCityText);
    accCityText.addRelation(ACC.RELATION_LABELLED_BY, accCityLabel);

    Accessible accAddressGroup = addressGroup.getAccessible();
    accStreetText.addRelation(ACC.RELATION_MEMBER_OF, accAddressGroup);
    accStreetText.addRelation(ACC.RELATION_LABELLED_BY, accAddressGroup);
    accCityText.addRelation(ACC.RELATION_MEMBER_OF, accAddressGroup);
    accCityText.addRelation(ACC.RELATION_LABELLED_BY, accAddressGroup);

    shell.pack();/* www  . j av  a  2s  .c o  m*/
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:org.eclipse.swt.snippets.Snippet185.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 185");
    shell.setLayout(new FillLayout());
    Label label1 = new Label(shell, SWT.BORDER);
    label1.setText("Drag Source");
    final Table table = new Table(shell, SWT.BORDER);
    for (int i = 0; i < 4; i++) {
        TableItem item = new TableItem(table, SWT.NONE);
        if (i % 2 == 0)
            item.setText("Drop a file");
        if (i % 2 == 1)
            item.setText("Drop text");
    }/*  w  w  w.j  a v  a  2  s. com*/
    DragSource dragSource = new DragSource(label1, DND.DROP_COPY);
    dragSource.setTransfer(TextTransfer.getInstance(), FileTransfer.getInstance());
    dragSource.addDragListener(new DragSourceAdapter() {
        @Override
        public void dragSetData(DragSourceEvent event) {
            if (FileTransfer.getInstance().isSupportedType(event.dataType)) {
                File file = new File("temp");
                event.data = new String[] { file.getAbsolutePath() };
            }
            if (TextTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = "once upon a time";
            }
        }
    });
    DropTarget dropTarget = new DropTarget(table, DND.DROP_COPY | DND.DROP_DEFAULT);
    dropTarget.setTransfer(TextTransfer.getInstance(), FileTransfer.getInstance());
    dropTarget.addDropListener(new DropTargetAdapter() {
        FileTransfer fileTransfer = FileTransfer.getInstance();
        TextTransfer textTransfer = TextTransfer.getInstance();

        @Override
        public void dragEnter(DropTargetEvent event) {
            if (event.detail == DND.DROP_DEFAULT)
                event.detail = DND.DROP_COPY;
        }

        @Override
        public void dragOperationChanged(DropTargetEvent event) {
            if (event.detail == DND.DROP_DEFAULT)
                event.detail = DND.DROP_COPY;
        }

        @Override
        public void dragOver(DropTargetEvent event) {
            event.detail = DND.DROP_NONE;
            TableItem item = (TableItem) event.item;
            if (item == null)
                return;
            int itemIndex = table.indexOf(item);
            if (itemIndex % 2 == 0) {
                int index = 0;
                while (index < event.dataTypes.length) {
                    if (fileTransfer.isSupportedType(event.dataTypes[index]))
                        break;
                    index++;
                }
                if (index < event.dataTypes.length) {
                    event.currentDataType = event.dataTypes[index];
                    event.detail = DND.DROP_COPY;
                    return;
                }
            } else {
                int index = 0;
                while (index < event.dataTypes.length) {
                    if (textTransfer.isSupportedType(event.dataTypes[index]))
                        break;
                    index++;
                }
                if (index < event.dataTypes.length) {
                    event.currentDataType = event.dataTypes[index];
                    event.detail = DND.DROP_COPY;
                    return;
                }
            }
        }

        @Override
        public void drop(DropTargetEvent event) {
            TableItem item = (TableItem) event.item;
            if (item == null) {
                event.detail = DND.DROP_NONE;
                return;
            }
            if (fileTransfer.isSupportedType(event.currentDataType)) {
                String[] files = (String[]) event.data;
                if (files != null && files.length > 0) {
                    item.setText(files[0]);
                }
            }
            if (textTransfer.isSupportedType(event.currentDataType)) {
                String text = (String) event.data;
                if (text != null) {
                    item.setText(text);
                }
            }
        }

    });
    shell.setSize(300, 150);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:DialogOKCancelFormLayout.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);

    Shell dialog = new Shell(shell, SWT.DIALOG_TRIM);
    Label label = new Label(dialog, SWT.NONE);
    label.setText("Exit the application?");
    Button okButton = new Button(dialog, SWT.PUSH);
    okButton.setText("&OK");
    Button cancelButton = new Button(dialog, SWT.PUSH);
    cancelButton.setText("&Cancel");

    FormLayout form = new FormLayout();
    form.marginWidth = form.marginHeight = 8;
    dialog.setLayout(form);/*w w  w. j av a 2 s.  co  m*/
    FormData okData = new FormData();
    okData.top = new FormAttachment(label, 8);
    okButton.setLayoutData(okData);
    FormData cancelData = new FormData();
    cancelData.left = new FormAttachment(okButton, 8);
    cancelData.top = new FormAttachment(okButton, 0, SWT.TOP);
    cancelButton.setLayoutData(cancelData);

    dialog.setDefaultButton(okButton);
    dialog.pack();
    dialog.open();

    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:org.eclipse.swt.snippets.Snippet109.java

public static void main(String[] args) {
    final Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 109");
    shell.setLayout(new FillLayout());

    SashForm form = new SashForm(shell, SWT.HORIZONTAL);
    form.setLayout(new FillLayout());

    Composite child1 = new Composite(form, SWT.NONE);
    child1.setLayout(new FillLayout());
    new Label(child1, SWT.NONE).setText("Label in pane 1");

    Composite child2 = new Composite(form, SWT.NONE);
    child2.setLayout(new FillLayout());
    new Button(child2, SWT.PUSH).setText("Button in pane2");

    Composite child3 = new Composite(form, SWT.NONE);
    child3.setLayout(new FillLayout());
    new Label(child3, SWT.PUSH).setText("Label in pane3");

    form.setWeights(new int[] { 30, 40, 30 });
    shell.open();/*w  w  w .  j  a  va2 s . c o m*/
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:DialogClass.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Dialog Example");
    shell.setSize(300, 200);/*from  w ww  .  ja v a 2  s.  co m*/
    shell.open();

    final Button button = new Button(shell, SWT.PUSH);
    button.setText("Delete File");
    button.setBounds(20, 40, 80, 25);

    final Text text = new Text(shell, SWT.SHADOW_IN);
    text.setBounds(140, 40, 100, 25);

    final Shell dialog = new Shell(shell, SWT.APPLICATION_MODAL | SWT.DIALOG_TRIM);
    dialog.setText("Delete File");
    dialog.setSize(250, 150);

    final Button buttonOK = new Button(dialog, SWT.PUSH);
    buttonOK.setText("OK");
    buttonOK.setBounds(20, 55, 80, 25);

    Button buttonCancel = new Button(dialog, SWT.PUSH);
    buttonCancel.setText("Cancel");
    buttonCancel.setBounds(120, 55, 80, 25);

    final Label label = new Label(dialog, SWT.NONE);
    label.setText("Delete the file?");
    label.setBounds(20, 15, 100, 20);

    Listener listener = new Listener() {
        public void handleEvent(Event event) {
            if (event.widget == buttonOK) {
                deleteFlag = true;
            } else {
                deleteFlag = false;
            }
            dialog.close();
        }
    };

    buttonOK.addListener(SWT.Selection, listener);
    buttonCancel.addListener(SWT.Selection, listener);

    Listener buttonListener = new Listener() {
        public void handleEvent(Event event) {
            dialog.open();
        }
    };

    button.addListener(SWT.Selection, buttonListener);

    while (!dialog.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }

    if (deleteFlag) {
        text.setText("File deleted.");
    } else {
        text.setText("File not deleted.");
    }

    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:org.eclipse.swt.snippets.Snippet340.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 340");
    shell.setLayout(new GridLayout());
    shell.setText("Description Relation Example");

    // (works with either a Label or a READ_ONLY Text)
    final Label liveLabel = new Label(shell, SWT.BORDER | SWT.READ_ONLY);
    //   final Text liveLabel = new Text(shell, SWT.BORDER | SWT.READ_ONLY);
    liveLabel.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
    liveLabel.setText("Live region messages go here");

    new Label(shell, SWT.NONE).setText("Type an integer from 1 to 4:");

    final Text textField = new Text(shell, SWT.SINGLE | SWT.BORDER);
    textField.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
    textField.addModifyListener(e -> {
        String textValue = textField.getText();
        String message = textValue + " is not valid input.";
        try {//  www  .  j  av  a 2 s.c  om
            int value = Integer.parseInt(textValue);
            switch (value) {
            case 1:
                message = "One for the money,";
                break;
            case 2:
                message = "Two for the show,";
                break;
            case 3:
                message = "Three to get ready,";
                break;
            case 4:
                message = "And four to go!";
                break;
            }
        } catch (NumberFormatException ex) {
        }
        liveLabel.setText(message);
        textField.getAccessible().sendEvent(ACC.EVENT_DESCRIPTION_CHANGED, null);
        textField.setSelection(0, textField.getCharCount());
    });
    textField.getAccessible().addRelation(ACC.RELATION_DESCRIBED_BY, liveLabel.getAccessible());
    liveLabel.getAccessible().addRelation(ACC.RELATION_DESCRIPTION_FOR, textField.getAccessible());
    textField.getAccessible().addAccessibleListener(new AccessibleAdapter() {
        @Override
        public void getDescription(AccessibleEvent event) {
            event.result = liveLabel.getText();
        }
    });

    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:org.eclipse.swt.snippets.Snippet68.java

public static void main(String[] args) {
    final Display display = new Display();
    final Color red = display.getSystemColor(SWT.COLOR_RED);
    final Color blue = display.getSystemColor(SWT.COLOR_BLUE);
    Shell shell = new Shell(display);
    shell.setText("Snippet 68");
    shell.setLayout(new RowLayout());
    Button button = new Button(shell, SWT.PUSH);
    button.setText("Stop Timer");
    final Label label = new Label(shell, SWT.BORDER);
    label.setBackground(red);//from   w w  w.j a va  2  s  .  c o m
    final int time = 500;
    final Runnable timer = new Runnable() {
        @Override
        public void run() {
            if (label.isDisposed())
                return;
            Color color = label.getBackground().equals(red) ? blue : red;
            label.setBackground(color);
            display.timerExec(time, this);
        }
    };
    display.timerExec(time, timer);
    button.addListener(SWT.Selection, event -> display.timerExec(-1, timer));
    button.pack();
    label.setLayoutData(new RowData(button.getSize()));
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:SWTButtonAction.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setSize(200, 200);//from w w  w.j a  va2 s. c  o m
    shell.setText("Dialogs");
    shell.open();

    final Button opener = new Button(shell, SWT.PUSH);
    opener.setText("Click Me");
    opener.setBounds(20, 20, 50, 25);

    final Text text = new Text(shell, SWT.SHADOW_IN);
    text.setBounds(80, 20, 100, 25);

    final Shell dialog = new Shell(shell, SWT.APPLICATION_MODAL | SWT.DIALOG_TRIM);
    dialog.setText("Dialog");
    dialog.setSize(150, 100);

    final Label label = new Label(dialog, SWT.NONE);
    label.setText("OK to proceed?");
    label.setBounds(35, 5, 100, 20);

    final Button okButton = new Button(dialog, SWT.PUSH);
    okButton.setBounds(20, 35, 40, 25);
    okButton.setText("OK");

    Button cancelButton = new Button(dialog, SWT.PUSH);
    cancelButton.setBounds(70, 35, 40, 25);
    cancelButton.setText("Cancel");

    final boolean[] response = new boolean[1];
    response[0] = true;

    Listener listener = new Listener() {
        public void handleEvent(Event event) {
            if (event.widget == okButton) {
                response[0] = true;
            } else {
                response[0] = false;
            }
            dialog.close();
        }
    };

    okButton.addListener(SWT.Selection, listener);
    cancelButton.addListener(SWT.Selection, listener);

    Listener openerListener = new Listener() {
        public void handleEvent(Event event) {
            dialog.open();
        }
    };

    opener.addListener(SWT.Selection, openerListener);

    while (!dialog.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }

    if (response[0]) {
        text.setText("You clicked OK");
    } else {
        text.setText("You clicked Cancel");
    }

    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:DragTextToLabel.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);

    Text text = new Text(shell, SWT.BORDER | SWT.SINGLE);

    Transfer[] types = new Transfer[] { TextTransfer.getInstance() };
    DragSource source = new DragSource(text, DND.DROP_MOVE | DND.DROP_COPY);
    source.setTransfer(types);//w  ww .  j  a  v a  2s  .c o  m

    source.addDragListener(new DragSourceAdapter() {
        public void dragSetData(DragSourceEvent event) {
            // Get the selected items in the drag source
            DragSource ds = (DragSource) event.widget;
            Text text = (Text) ds.getControl();

            event.data = text.getSelectionText();
        }
    });

    Label label = new Label(shell, SWT.BORDER);
    // Create the drop target
    DropTarget target = new DropTarget(label, DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_DEFAULT);
    target.setTransfer(types);
    target.addDropListener(new DropTargetAdapter() {
        public void dragEnter(DropTargetEvent event) {
            if (event.detail == DND.DROP_DEFAULT) {
                event.detail = (event.operations & DND.DROP_COPY) != 0 ? DND.DROP_COPY : DND.DROP_NONE;
            }

            // Allow dropping text only
            for (int i = 0, n = event.dataTypes.length; i < n; i++) {
                if (TextTransfer.getInstance().isSupportedType(event.dataTypes[i])) {
                    event.currentDataType = event.dataTypes[i];
                }
            }
        }

        public void dragOver(DropTargetEvent event) {
            event.feedback = DND.FEEDBACK_SELECT | DND.FEEDBACK_SCROLL;
        }

        public void drop(DropTargetEvent event) {
            if (TextTransfer.getInstance().isSupportedType(event.currentDataType)) {
                // Get the dropped data
                DropTarget target = (DropTarget) event.widget;
                Label label = (Label) target.getControl();
                String data = (String) event.data;

                label.setText(data);
                label.redraw();
            }
        }
    });

    text.setBounds(10, 10, 100, 25);
    label.setBounds(10, 55, 100, 25);
    shell.open();

    while (!shell.isDisposed()) {
        if (!display.readAndDispatch()) {
            display.sleep();
        }
    }
    display.dispose();
}

---

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