org.eclipse.swt.examples.controlexample.ScrollableTab.java Source code

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Here is the source code for org.eclipse.swt.examples.controlexample.ScrollableTab.java

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/*******************************************************************************
 * Copyright (c) 2000, 2013 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.examples.controlexample;

import org.eclipse.swt.*;
import org.eclipse.swt.widgets.*;

abstract class ScrollableTab extends Tab {
    /* Style widgets added to the "Style" group */
    Button singleButton, multiButton, horizontalButton, verticalButton;

    /**
     * Creates the Tab within a given instance of ControlExample.
     */
    ScrollableTab(ControlExample instance) {
        super(instance);
    }

    /**
     * Creates the "Style" group.
     */
    @Override
    void createStyleGroup() {
        super.createStyleGroup();

        /* Create the extra widgets */
        singleButton = new Button(styleGroup, SWT.RADIO);
        singleButton.setText("SWT.SINGLE");
        multiButton = new Button(styleGroup, SWT.RADIO);
        multiButton.setText("SWT.MULTI");
        horizontalButton = new Button(styleGroup, SWT.CHECK);
        horizontalButton.setText("SWT.H_SCROLL");
        horizontalButton.setSelection(true);
        verticalButton = new Button(styleGroup, SWT.CHECK);
        verticalButton.setText("SWT.V_SCROLL");
        verticalButton.setSelection(true);
        borderButton = new Button(styleGroup, SWT.CHECK);
        borderButton.setText("SWT.BORDER");
    }

    /**
     * Sets the state of the "Example" widgets.
     */
    @Override
    void setExampleWidgetState() {
        super.setExampleWidgetState();
        Widget[] widgets = getExampleWidgets();
        if (widgets.length != 0) {
            singleButton.setSelection((widgets[0].getStyle() & SWT.SINGLE) != 0);
            multiButton.setSelection((widgets[0].getStyle() & SWT.MULTI) != 0);
            horizontalButton.setSelection((widgets[0].getStyle() & SWT.H_SCROLL) != 0);
            verticalButton.setSelection((widgets[0].getStyle() & SWT.V_SCROLL) != 0);
            borderButton.setSelection((widgets[0].getStyle() & SWT.BORDER) != 0);
        }
    }
}