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

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Here is the source code for org.eclipse.swt.examples.controlexample.ExpandBarTab.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.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.ExpandBar;
import org.eclipse.swt.widgets.ExpandItem;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Widget;

class ExpandBarTab extends Tab {
    /* Example widgets and groups that contain them */
    ExpandBar expandBar1;
    Group expandBarGroup;

    /* Style widgets added to the "Style" group */
    Button verticalButton;

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

    /**
     * Creates the "Example" group.
     */
    @Override
    void createExampleGroup() {
        super.createExampleGroup();

        /* Create a group for the list */
        expandBarGroup = new Group(exampleGroup, SWT.NONE);
        expandBarGroup.setLayout(new GridLayout());
        expandBarGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        expandBarGroup.setText("ExpandBar");
    }

    /**
     * Creates the "Example" widgets.
     */
    @Override
    void createExampleWidgets() {

        /* Compute the widget style */
        int style = getDefaultStyle();
        if (borderButton.getSelection())
            style |= SWT.BORDER;
        if (verticalButton.getSelection())
            style |= SWT.V_SCROLL;

        /* Create the example widgets */
        expandBar1 = new ExpandBar(expandBarGroup, style);

        // First item
        Composite composite = new Composite(expandBar1, SWT.NONE);
        composite.setLayout(new GridLayout());
        new Button(composite, SWT.PUSH).setText("SWT.PUSH");
        new Button(composite, SWT.RADIO).setText("SWT.RADIO");
        new Button(composite, SWT.CHECK).setText("SWT.CHECK");
        new Button(composite, SWT.TOGGLE).setText("SWT.TOGGLE");
        ExpandItem item = new ExpandItem(expandBar1, SWT.NONE, 0);
        item.setText(ControlExample.getResourceString("Item1_Text"));
        item.setHeight(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
        item.setControl(composite);
        item.setImage(instance.images[ControlExample.ciClosedFolder]);

        // Second item
        composite = new Composite(expandBar1, SWT.NONE);
        composite.setLayout(new GridLayout(2, false));
        new Label(composite, SWT.NONE).setImage(display.getSystemImage(SWT.ICON_ERROR));
        new Label(composite, SWT.NONE).setText("SWT.ICON_ERROR");
        new Label(composite, SWT.NONE).setImage(display.getSystemImage(SWT.ICON_INFORMATION));
        new Label(composite, SWT.NONE).setText("SWT.ICON_INFORMATION");
        new Label(composite, SWT.NONE).setImage(display.getSystemImage(SWT.ICON_WARNING));
        new Label(composite, SWT.NONE).setText("SWT.ICON_WARNING");
        new Label(composite, SWT.NONE).setImage(display.getSystemImage(SWT.ICON_QUESTION));
        new Label(composite, SWT.NONE).setText("SWT.ICON_QUESTION");
        item = new ExpandItem(expandBar1, SWT.NONE, 1);
        item.setText(ControlExample.getResourceString("Item2_Text"));
        item.setHeight(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
        item.setControl(composite);
        item.setImage(instance.images[ControlExample.ciOpenFolder]);
        item.setExpanded(true);
    }

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

        /* Create the extra widgets */
        verticalButton = new Button(styleGroup, SWT.CHECK);
        verticalButton.setText("SWT.V_SCROLL");
        verticalButton.setSelection(true);
        borderButton = new Button(styleGroup, SWT.CHECK);
        borderButton.setText("SWT.BORDER");
    }

    /**
     * Gets the "Example" widget children.
     */
    @Override
    Widget[] getExampleWidgets() {
        return new Widget[] { expandBar1 };
    }

    /**
     * Returns a list of set/get API method names (without the set/get prefix)
     * that can be used to set/get values in the example control(s).
     */
    @Override
    String[] getMethodNames() {
        return new String[] { "Spacing" };
    }

    /**
     * Gets the short text for the tab folder item.
     */
    @Override
    String getShortTabText() {
        return "EB";
    }

    /**
     * Gets the text for the tab folder item.
     */
    @Override
    String getTabText() {
        return "ExpandBar";
    }

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