Example usage for org.eclipse.swt.widgets Button setText

List of usage examples for org.eclipse.swt.widgets Button setText

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Introduction

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

Prototype

public void setText(String text)

Source Link

Document

Sets the receiver's text.

Usage

From source file:org.eclipse.swt.examples.imageanalyzer.ImageAnalyzer.java

int showBMPDialog() {
    final int[] bmpType = new int[1];
    bmpType[0] = SWT.IMAGE_BMP;//  w ww. j a v a 2 s  .  c o  m
    SelectionListener radioSelected = widgetSelectedAdapter(event -> {
        Button radio = (Button) event.widget;
        if (radio.getSelection())
            bmpType[0] = ((Integer) radio.getData()).intValue();
    });
    // need to externalize strings
    final Shell dialog = new Shell(shell, SWT.DIALOG_TRIM);

    dialog.setText(bundle.getString("Save_as_type"));
    dialog.setLayout(new GridLayout());

    Label label = new Label(dialog, SWT.NONE);
    label.setText(bundle.getString("Save_as_type_label"));

    Button radio = new Button(dialog, SWT.RADIO);
    radio.setText(bundle.getString("Save_as_type_no_compress"));
    radio.setSelection(true);
    radio.setData(Integer.valueOf(SWT.IMAGE_BMP));
    radio.addSelectionListener(radioSelected);

    radio = new Button(dialog, SWT.RADIO);
    radio.setText(bundle.getString("Save_as_type_rle_compress"));
    radio.setData(Integer.valueOf(SWT.IMAGE_BMP_RLE));
    radio.addSelectionListener(radioSelected);

    radio = new Button(dialog, SWT.RADIO);
    radio.setText(bundle.getString("Save_as_type_os2"));
    radio.setData(Integer.valueOf(SWT.IMAGE_OS2_BMP));
    radio.addSelectionListener(radioSelected);

    label = new Label(dialog, SWT.SEPARATOR | SWT.HORIZONTAL);
    label.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

    Button ok = new Button(dialog, SWT.PUSH);
    ok.setText(bundle.getString("OK"));
    GridData data = new GridData();
    data.horizontalAlignment = SWT.CENTER;
    data.widthHint = 75;
    ok.setLayoutData(data);
    ok.addSelectionListener(widgetSelectedAdapter(e -> dialog.close()));

    dialog.pack();
    dialog.open();
    while (!dialog.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    return bmpType[0];
}

From source file:PaintExample.java

/**
 * Handles a mouseDown event./*from  w  ww  . java 2 s. co m*/
 * 
 * @param event the mouse event detail information
 */
public void mouseDown(MouseEvent event) {
    if (event.button == 1) {
        // draw with left mouse button
        getPaintSurface().commitRubberbandSelection();
    } else {
        // set text with right mouse button
        getPaintSurface().clearRubberbandSelection();
        Shell shell = getPaintSurface().getShell();
        final Shell dialog = new Shell(shell, SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);
        dialog.setText(PaintExample.getResourceString("tool.Text.dialog.title"));
        dialog.setLayout(new GridLayout());
        Label label = new Label(dialog, SWT.NONE);
        label.setText(PaintExample.getResourceString("tool.Text.dialog.message"));
        label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
        final Text field = new Text(dialog, SWT.SINGLE | SWT.BORDER);
        field.setText(drawText);
        field.selectAll();
        field.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
        Composite buttons = new Composite(dialog, SWT.NONE);
        GridLayout layout = new GridLayout(2, true);
        layout.marginWidth = 0;
        buttons.setLayout(layout);
        buttons.setLayoutData(new GridData(SWT.END, SWT.CENTER, false, false));
        Button ok = new Button(buttons, SWT.PUSH);
        ok.setText(PaintExample.getResourceString("OK"));
        ok.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
        ok.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                drawText = field.getText();
                dialog.dispose();
            }
        });
        Button cancel = new Button(buttons, SWT.PUSH);
        cancel.setText(PaintExample.getResourceString("Cancel"));
        cancel.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                dialog.dispose();
            }
        });
        dialog.setDefaultButton(ok);
        dialog.pack();
        dialog.open();
        Display display = dialog.getDisplay();
        while (!shell.isDisposed() && !dialog.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
    }
}

From source file:PrintKTableExample.java

/**
 * Fugt einen Button zur Leiste hinzu. Gibt eine Referenz auf den angelegten
 * Button zuruck./*  ww w  . j  a  v  a 2  s  .  com*/
 */
public Button addButton(String name, String toolTip, SelectionListener selListener) {
    Button b = new Button(this, SWT.PUSH);
    b.setText(name);
    b.setToolTipText(toolTip);
    b.setLayoutData(new RowData(myButtonWidth, 25));
    if (selListener != null)
        b.addSelectionListener(selListener);
    myButtons.add(b);
    return b;
}

From source file:PrintKTableExample.java

protected Button addButton(boolean rightAdjusted, String text, String tip) {
    Button erg = new Button(guiButtonArea, SWT.PUSH);
    erg.setText(text);
    erg.setToolTipText(tip);/*  w  w  w  .j  a v  a 2s .c  o  m*/

    Point butPrefferedSize = erg.computeSize(SWT.DEFAULT, SWT.DEFAULT);

    FormData fd = new FormData();
    fd.bottom = new FormAttachment(100, -3);

    if (butPrefferedSize.x > 70)
        fd.width = butPrefferedSize.x + 4;
    else
        fd.width = 70;
    fd.height = 24;
    erg.setLayoutData(fd);

    if (rightAdjusted) {
        if (guiLastRightBut == null)
            fd.right = new FormAttachment(100, -3);
        else
            fd.right = new FormAttachment(guiLastRightBut, -3);
        guiLastRightBut = erg;
    } else {
        if (guiLastLeftBut == null)
            fd.left = new FormAttachment(0, 3);
        else
            fd.left = new FormAttachment(guiLastLeftBut, 3);
        guiLastLeftBut = erg;
    }

    erg.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent arg0) {
            onButton((Button) arg0.widget, ((Button) arg0.widget).getText());
        }
    });
    return erg;
}

From source file:CustomControlExample.java

/**
 * Append the Set/Get API controls to the "Other" group.
 *//*w  w  w.  j  a v  a 2s  .  co  m*/
void createSetGetGroup() {
    /*
     * Create the button to access set/get API functionality.
     */
    final String[] methodNames = getMethodNames();
    if (methodNames != null) {
        Button setGetButton = new Button(otherGroup, SWT.PUSH);
        setGetButton.setText(ControlExample.getResourceString("Set_Get"));
        setGetButton.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
        setGetButton.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                Button button = (Button) e.widget;
                Point pt = button.getLocation();
                pt = e.display.map(button, null, pt);
                createSetGetDialog(pt.x, pt.y, methodNames);
            }
        });
    }
}

From source file:CustomControlExample.java

/**
 * Creates and opens the "Listener selection" dialog.
 *//*from  ww w  .  j a  v  a2s.  c  o  m*/
void createListenerSelectionDialog() {
    final Shell dialog = new Shell(tabFolderPage.getShell(), SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);
    dialog.setText(ControlExample.getResourceString("Select_Listeners"));
    dialog.setLayout(new GridLayout(2, false));
    final Table table = new Table(dialog, SWT.BORDER | SWT.V_SCROLL | SWT.CHECK);
    GridData data = new GridData(GridData.FILL_BOTH);
    data.verticalSpan = 2;
    table.setLayoutData(data);
    for (int i = 0; i < EVENT_NAMES.length; i++) {
        TableItem item = new TableItem(table, SWT.NONE);
        item.setText(EVENT_NAMES[i]);
        item.setChecked(eventsFilter[i]);
    }
    final String[] customNames = getCustomEventNames();
    for (int i = 0; i < customNames.length; i++) {
        TableItem item = new TableItem(table, SWT.NONE);
        item.setText(customNames[i]);
        item.setChecked(eventsFilter[EVENT_NAMES.length + i]);
    }
    Button selectAll = new Button(dialog, SWT.PUSH);
    selectAll.setText(ControlExample.getResourceString("Select_All"));
    selectAll.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
    selectAll.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            TableItem[] items = table.getItems();
            for (int i = 0; i < EVENT_NAMES.length; i++) {
                items[i].setChecked(true);
            }
            for (int i = 0; i < customNames.length; i++) {
                items[EVENT_NAMES.length + i].setChecked(true);
            }
        }
    });
    Button deselectAll = new Button(dialog, SWT.PUSH);
    deselectAll.setText(ControlExample.getResourceString("Deselect_All"));
    deselectAll.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING));
    deselectAll.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            TableItem[] items = table.getItems();
            for (int i = 0; i < EVENT_NAMES.length; i++) {
                items[i].setChecked(false);
            }
            for (int i = 0; i < customNames.length; i++) {
                items[EVENT_NAMES.length + i].setChecked(false);
            }
        }
    });
    new Label(dialog, SWT.NONE); /* Filler */
    Button ok = new Button(dialog, SWT.PUSH);
    ok.setText(ControlExample.getResourceString("OK"));
    dialog.setDefaultButton(ok);
    ok.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
    ok.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            TableItem[] items = table.getItems();
            for (int i = 0; i < EVENT_NAMES.length; i++) {
                eventsFilter[i] = items[i].getChecked();
            }
            for (int i = 0; i < customNames.length; i++) {
                eventsFilter[EVENT_NAMES.length + i] = items[EVENT_NAMES.length + i].getChecked();
            }
            dialog.dispose();
        }
    });
    dialog.pack();
    dialog.open();
    while (!dialog.isDisposed()) {
        if (!dialog.getDisplay().readAndDispatch())
            dialog.getDisplay().sleep();
    }
}

From source file:CustomControlExample.java

/**
 * Creates the "Listeners" group. The "Listeners" group goes below the
 * "Example" and "Control" groups./*  w  w w. j av  a 2  s .  co m*/
 */
void createListenersGroup() {
    listenersGroup = new Group(tabFolderPage, SWT.NONE);
    listenersGroup.setLayout(new GridLayout(3, false));
    listenersGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, true, 2, 1));
    listenersGroup.setText(ControlExample.getResourceString("Listeners"));

    /*
     * Create the button to access the 'Listeners' dialog.
     */
    Button listenersButton = new Button(listenersGroup, SWT.PUSH);
    listenersButton.setText(ControlExample.getResourceString("Select_Listeners"));
    listenersButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            createListenerSelectionDialog();
            recreateExampleWidgets();
        }
    });

    /*
     * Create the checkbox to add/remove listeners to/from the example
     * widgets.
     */
    final Button listenCheckbox = new Button(listenersGroup, SWT.CHECK);
    listenCheckbox.setText(ControlExample.getResourceString("Listen"));
    listenCheckbox.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            logging = listenCheckbox.getSelection();
            recreateExampleWidgets();
        }
    });

    /*
     * Create the button to clear the text.
     */
    Button clearButton = new Button(listenersGroup, SWT.PUSH);
    clearButton.setText(ControlExample.getResourceString("Clear"));
    clearButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
    clearButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            eventConsole.setText("");
        }
    });

    /* Initialize the eventsFilter to log all events. */
    int customEventCount = getCustomEventNames().length;
    eventsFilter = new boolean[EVENT_NAMES.length + customEventCount];
    for (int i = 0; i < EVENT_NAMES.length + customEventCount; i++) {
        eventsFilter[i] = true;
    }

    /* Create the event console Text. */
    eventConsole = new Text(listenersGroup, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL);
    GridData data = new GridData(GridData.FILL_BOTH);
    data.horizontalSpan = 3;
    data.heightHint = 80;
    eventConsole.setLayoutData(data);
    createEventConsolePopup();
    eventConsole.addKeyListener(new KeyAdapter() {
        public void keyPressed(KeyEvent e) {
            if ((e.keyCode == 'A' || e.keyCode == 'a') && (e.stateMask & SWT.MOD1) != 0) {
                eventConsole.selectAll();
                e.doit = false;
            }
        }
    });
}

From source file:CustomControlExample.java

/**
 * Handle the Create button selection event.
 * //from   w  w  w .j  a v a 2  s  .  co m
 * @param event
 *            org.eclipse.swt.events.SelectionEvent
 */
public void createButtonSelected(SelectionEvent event) {

    /*
     * Remember the example shells so they can be disposed by the user.
     */
    if (shellCount >= shells.length) {
        Shell[] newShells = new Shell[shells.length + 4];
        System.arraycopy(shells, 0, newShells, 0, shells.length);
        shells = newShells;
    }

    /* Compute the shell style */
    int style = SWT.NONE;
    if (noTrimButton.getSelection())
        style |= SWT.NO_TRIM;
    if (closeButton.getSelection())
        style |= SWT.CLOSE;
    if (titleButton.getSelection())
        style |= SWT.TITLE;
    if (minButton.getSelection())
        style |= SWT.MIN;
    if (maxButton.getSelection())
        style |= SWT.MAX;
    if (borderButton.getSelection())
        style |= SWT.BORDER;
    if (resizeButton.getSelection())
        style |= SWT.RESIZE;
    if (onTopButton.getSelection())
        style |= SWT.ON_TOP;
    if (toolButton.getSelection())
        style |= SWT.TOOL;
    if (modelessButton.getSelection())
        style |= SWT.MODELESS;
    if (primaryModalButton.getSelection())
        style |= SWT.PRIMARY_MODAL;
    if (applicationModalButton.getSelection())
        style |= SWT.APPLICATION_MODAL;
    if (systemModalButton.getSelection())
        style |= SWT.SYSTEM_MODAL;

    /* Create the shell with or without a parent */
    if (noParentButton.getSelection()) {
        shells[shellCount] = new Shell(style);
    } else {
        Shell shell = tabFolderPage.getShell();
        shells[shellCount] = new Shell(shell, style);
    }
    final Shell currentShell = shells[shellCount];
    Button button = new Button(currentShell, SWT.PUSH);
    button.setBounds(20, 20, 120, 30);
    Button closeButton = new Button(currentShell, SWT.PUSH);
    closeButton.setBounds(160, 20, 120, 30);
    closeButton.setText(ControlExample.getResourceString("Close"));
    closeButton.addListener(SWT.Selection, new Listener() {
        public void handleEvent(Event event) {
            currentShell.dispose();
        }
    });

    /* Set the size, title, and image, and open the shell */
    currentShell.setSize(300, 100);
    currentShell.setText(ControlExample.getResourceString("Title") + shellCount);
    if (imageButton.getSelection())
        currentShell.setImage(instance.images[ControlExample.ciTarget]);
    hookListeners(currentShell);
    currentShell.open();
    shellCount++;
}

From source file:CustomControlExample.java

/**
 * Creates the "Colors" group. This is typically a child of the "Control"
 * group. Subclasses override this method to customize and set system
 * colors./*  w  ww.ja va2 s.co  m*/
 */
void createColorGroup() {
    /* Create the group */
    colorGroup = new Group(controlGroup, SWT.NONE);
    colorGroup.setLayout(new GridLayout(2, false));
    colorGroup.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
    colorGroup.setText(ControlExample.getResourceString("Colors"));
    new Label(colorGroup, SWT.NONE).setText(ControlExample.getResourceString("Foreground_Color"));
    foregroundButton = new Button(colorGroup, SWT.PUSH);
    new Label(colorGroup, SWT.NONE).setText(ControlExample.getResourceString("Background_Color"));
    backgroundButton = new Button(colorGroup, SWT.PUSH);
    fontButton = new Button(colorGroup, SWT.PUSH);
    fontButton.setText(ControlExample.getResourceString("Font"));
    fontButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
    Button defaultsButton = new Button(colorGroup, SWT.PUSH);
    defaultsButton.setText(ControlExample.getResourceString("Defaults"));

    Shell shell = controlGroup.getShell();
    final ColorDialog foregroundDialog = new ColorDialog(shell);
    final ColorDialog backgroundDialog = new ColorDialog(shell);
    final FontDialog fontDialog = new FontDialog(shell);

    /* Create images to display current colors */
    int imageSize = 12;
    Display display = shell.getDisplay();
    foregroundImage = new Image(display, imageSize, imageSize);
    backgroundImage = new Image(display, imageSize, imageSize);

    /* Add listeners to set the colors and font */
    foregroundButton.setImage(foregroundImage); // sets the size of the
    // button
    foregroundButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent event) {
            Color oldColor = foregroundColor;
            if (oldColor == null) {
                Control[] controls = getExampleWidgets();
                if (controls.length > 0)
                    oldColor = controls[0].getForeground();
            }
            if (oldColor != null)
                foregroundDialog.setRGB(oldColor.getRGB()); // seed dialog
            // with current
            // color
            RGB rgb = foregroundDialog.open();
            if (rgb == null)
                return;
            oldColor = foregroundColor; // save old foreground color to
            // dispose when done
            foregroundColor = new Color(event.display, rgb);
            setExampleWidgetForeground();
            if (oldColor != null)
                oldColor.dispose();
        }
    });
    backgroundButton.setImage(backgroundImage); // sets the size of the
    // button
    backgroundButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent event) {
            Color oldColor = backgroundColor;
            if (oldColor == null) {
                Control[] controls = getExampleWidgets();
                if (controls.length > 0)
                    oldColor = controls[0].getBackground(); // seed dialog
                // with current
                // color
            }
            if (oldColor != null)
                backgroundDialog.setRGB(oldColor.getRGB());
            RGB rgb = backgroundDialog.open();
            if (rgb == null)
                return;
            oldColor = backgroundColor; // save old background color to
            // dispose when done
            backgroundColor = new Color(event.display, rgb);
            setExampleWidgetBackground();
            if (oldColor != null)
                oldColor.dispose();
        }
    });
    fontButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent event) {
            Font oldFont = font;
            if (oldFont == null) {
                Control[] controls = getExampleWidgets();
                if (controls.length > 0)
                    oldFont = controls[0].getFont();
            }
            if (oldFont != null)
                fontDialog.setFontList(oldFont.getFontData()); // seed
            // dialog
            // with
            // current
            // font
            FontData fontData = fontDialog.open();
            if (fontData == null)
                return;
            oldFont = font; // dispose old font when done
            font = new Font(event.display, fontData);
            setExampleWidgetFont();
            setExampleWidgetSize();
            if (oldFont != null)
                oldFont.dispose();
        }
    });
    defaultsButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            resetColorsAndFonts();
        }
    });
    shell.addDisposeListener(new DisposeListener() {
        public void widgetDisposed(DisposeEvent event) {
            if (foregroundImage != null)
                foregroundImage.dispose();
            if (backgroundImage != null)
                backgroundImage.dispose();
            if (foregroundColor != null)
                foregroundColor.dispose();
            if (backgroundColor != null)
                backgroundColor.dispose();
            if (font != null)
                font.dispose();
            foregroundColor = null;
            backgroundColor = null;
            font = null;
        }
    });
}

From source file:CustomControlExample.java

/**
 * Creates the "Fonts" group.//from ww w  .  j  a va  2 s. co m
 */
void createColorGroup() {
    /* Create the group */
    colorGroup = new Group(controlGroup, SWT.NONE);
    colorGroup.setLayout(new GridLayout(2, false));
    colorGroup.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
    colorGroup.setText(ControlExample.getResourceString("Colors"));

    new Label(colorGroup, SWT.NONE).setText(ControlExample.getResourceString("Foreground_Color"));
    foregroundButton = new Button(colorGroup, SWT.PUSH);

    new Label(colorGroup, SWT.NONE).setText(ControlExample.getResourceString("Background_Color"));
    backgroundButton = new Button(colorGroup, SWT.PUSH);

    new Label(colorGroup, SWT.NONE).setText(ControlExample.getResourceString("Selection_Foreground_Color"));
    foregroundSelectionButton = new Button(colorGroup, SWT.PUSH);

    new Label(colorGroup, SWT.NONE).setText(ControlExample.getResourceString("Selection_Background_Color"));
    backgroundSelectionButton = new Button(colorGroup, SWT.PUSH);

    fontButton = new Button(colorGroup, SWT.PUSH);
    fontButton.setText(ControlExample.getResourceString("Font"));
    fontButton.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1));

    itemFontButton = new Button(colorGroup, SWT.PUSH);
    itemFontButton.setText(ControlExample.getResourceString("Item_Font"));
    itemFontButton.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1));

    Button defaultsButton = new Button(colorGroup, SWT.PUSH);
    defaultsButton.setText(ControlExample.getResourceString("Defaults"));

    Shell shell = controlGroup.getShell();
    final ColorDialog colorDialog = new ColorDialog(shell);
    final FontDialog fontDialog = new FontDialog(shell);

    /* Create images to display current colors */
    int imageSize = 12;
    Display display = shell.getDisplay();
    foregroundImage = new Image(display, imageSize, imageSize);
    backgroundImage = new Image(display, imageSize, imageSize);
    foregroundSelectionImage = new Image(display, imageSize, imageSize);
    backgroundSelectionImage = new Image(display, imageSize, imageSize);

    /* Add listeners to set the colors and font */
    foregroundButton.setImage(foregroundImage); // sets the size of the
    // button
    foregroundButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent event) {
            Color oldColor = foregroundColor;
            if (oldColor == null) {
                Control[] controls = getExampleWidgets();
                if (controls.length > 0)
                    oldColor = controls[0].getForeground();
            }
            if (oldColor != null)
                colorDialog.setRGB(oldColor.getRGB()); // seed dialog with
            // current color
            RGB rgb = colorDialog.open();
            if (rgb == null)
                return;
            oldColor = foregroundColor; // save old foreground color to
            // dispose when done
            foregroundColor = new Color(event.display, rgb);
            setExampleWidgetForeground();
            if (oldColor != null)
                oldColor.dispose();
        }
    });
    backgroundButton.setImage(backgroundImage); // sets the size of the
    // button
    backgroundButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent event) {
            Color oldColor = backgroundColor;
            if (oldColor == null) {
                Control[] controls = getExampleWidgets();
                if (controls.length > 0)
                    oldColor = controls[0].getBackground(); // seed dialog
                // with current
                // color
            }
            if (oldColor != null)
                colorDialog.setRGB(oldColor.getRGB());
            RGB rgb = colorDialog.open();
            if (rgb == null)
                return;
            oldColor = backgroundColor; // save old background color to
            // dispose when done
            backgroundColor = new Color(event.display, rgb);
            setExampleWidgetBackground();
            if (oldColor != null)
                oldColor.dispose();
        }
    });
    foregroundSelectionButton.setImage(foregroundSelectionImage); // sets
    // the
    // size
    // of
    // the
    // button
    foregroundSelectionButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent event) {
            Color oldColor = foregroundSelectionColor;
            if (oldColor == null) {
                Control[] controls = getExampleWidgets();
                if (controls.length > 0)
                    oldColor = controls[0].getForeground();
            }
            if (oldColor != null)
                colorDialog.setRGB(oldColor.getRGB()); // seed dialog with
            // current color
            RGB rgb = colorDialog.open();
            if (rgb == null)
                return;
            oldColor = foregroundSelectionColor; // save old foreground
            // color to dispose when
            // done
            foregroundSelectionColor = new Color(event.display, rgb);
            setExampleWidgetForeground();
            if (oldColor != null)
                oldColor.dispose();
        }
    });
    backgroundSelectionButton.setImage(backgroundSelectionImage); // sets
    // the
    // size
    // of
    // the
    // button
    backgroundSelectionButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent event) {
            Color oldColor = backgroundSelectionColor;
            if (oldColor == null) {
                Control[] controls = getExampleWidgets();
                if (controls.length > 0)
                    oldColor = controls[0].getBackground(); // seed dialog
                // with current
                // color
            }
            if (oldColor != null)
                colorDialog.setRGB(oldColor.getRGB());
            RGB rgb = colorDialog.open();
            if (rgb == null)
                return;
            oldColor = backgroundSelectionColor; // save old background
            // color to dispose when
            // done
            backgroundSelectionColor = new Color(event.display, rgb);
            setExampleWidgetBackground();
            if (oldColor != null)
                oldColor.dispose();
        }
    });
    fontButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent event) {
            Font oldFont = font;
            if (oldFont == null) {
                Control[] controls = getExampleWidgets();
                if (controls.length > 0)
                    oldFont = controls[0].getFont();
            }
            if (oldFont != null)
                fontDialog.setFontList(oldFont.getFontData()); // seed
            // dialog
            // with
            // current
            // font
            FontData fontData = fontDialog.open();
            if (fontData == null)
                return;
            oldFont = font; // dispose old font when done
            font = new Font(event.display, fontData);
            setExampleWidgetFont();
            setExampleWidgetSize();
            if (oldFont != null)
                oldFont.dispose();
        }
    });

    /* Add listeners to set the colors and font */
    itemFontButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent event) {
            Font oldFont = itemFont;
            if (oldFont == null)
                oldFont = tabFolder1.getItem(0).getFont();
            fontDialog.setFontList(oldFont.getFontData());
            FontData fontData = fontDialog.open();
            if (fontData == null)
                return;
            oldFont = itemFont;
            itemFont = new Font(event.display, fontData);
            setItemFont();
            setExampleWidgetSize();
            if (oldFont != null)
                oldFont.dispose();
        }
    });

    defaultsButton.addSelectionListener(new SelectionAdapter() {
        public void widgetSelected(SelectionEvent e) {
            resetColorsAndFonts();
        }
    });

    shell.addDisposeListener(new DisposeListener() {
        public void widgetDisposed(DisposeEvent event) {
            if (foregroundImage != null)
                foregroundImage.dispose();
            if (backgroundImage != null)
                backgroundImage.dispose();
            if (foregroundColor != null)
                foregroundColor.dispose();
            if (backgroundColor != null)
                backgroundColor.dispose();
            if (font != null)
                font.dispose();
            foregroundColor = null;
            backgroundColor = null;
            font = null;
            if (foregroundSelectionImage != null)
                foregroundSelectionImage.dispose();
            if (backgroundSelectionImage != null)
                backgroundSelectionImage.dispose();
            if (foregroundSelectionColor != null)
                foregroundSelectionColor.dispose();
            if (backgroundSelectionColor != null)
                backgroundSelectionColor.dispose();
            foregroundSelectionColor = null;
            backgroundSelectionColor = null;
            if (itemFont != null)
                itemFont.dispose();
            itemFont = null;
        }
    });
}