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

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Here is the source code for org.eclipse.swt.examples.controlexample.GroupTab.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 static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;

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.Group;
import org.eclipse.swt.widgets.Widget;

class GroupTab extends Tab {
    Button titleButton;

    /* Example widgets and groups that contain them */
    Group group1;
    Group groupGroup;

    /* Style widgets added to the "Style" group */
    Button shadowEtchedInButton, shadowEtchedOutButton, shadowInButton, shadowOutButton, shadowNoneButton;

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

    /**
     * Creates the "Other" group.
     */
    @Override
    void createOtherGroup() {
        super.createOtherGroup();

        /* Create display controls specific to this example */
        titleButton = new Button(otherGroup, SWT.CHECK);
        titleButton.setText(ControlExample.getResourceString("Title_Text"));

        /* Add the listeners */
        titleButton.addSelectionListener(widgetSelectedAdapter(event -> setTitleText()));
    }

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

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

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

        /* Compute the widget style */
        int style = getDefaultStyle();
        if (shadowEtchedInButton.getSelection())
            style |= SWT.SHADOW_ETCHED_IN;
        if (shadowEtchedOutButton.getSelection())
            style |= SWT.SHADOW_ETCHED_OUT;
        if (shadowInButton.getSelection())
            style |= SWT.SHADOW_IN;
        if (shadowOutButton.getSelection())
            style |= SWT.SHADOW_OUT;
        if (shadowNoneButton.getSelection())
            style |= SWT.SHADOW_NONE;
        if (borderButton.getSelection())
            style |= SWT.BORDER;

        /* Create the example widgets */
        group1 = new Group(groupGroup, style);
    }

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

        /* Create the extra widgets */
        shadowEtchedInButton = new Button(styleGroup, SWT.RADIO);
        shadowEtchedInButton.setText("SWT.SHADOW_ETCHED_IN");
        shadowEtchedInButton.setSelection(true);
        shadowEtchedOutButton = new Button(styleGroup, SWT.RADIO);
        shadowEtchedOutButton.setText("SWT.SHADOW_ETCHED_OUT");
        shadowInButton = new Button(styleGroup, SWT.RADIO);
        shadowInButton.setText("SWT.SHADOW_IN");
        shadowOutButton = new Button(styleGroup, SWT.RADIO);
        shadowOutButton.setText("SWT.SHADOW_OUT");
        shadowNoneButton = new Button(styleGroup, SWT.RADIO);
        shadowNoneButton.setText("SWT.SHADOW_NONE");
        borderButton = new Button(styleGroup, SWT.CHECK);
        borderButton.setText("SWT.BORDER");
    }

    /**
     * Gets the "Example" widget children.
     */
    @Override
    Widget[] getExampleWidgets() {
        return new Widget[] { group1 };
    }

    /**
     * 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[] { "Text", "ToolTipText" };
    }

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

    /**
     * Sets the title text of the "Example" widgets.
     */
    void setTitleText() {
        if (titleButton.getSelection()) {
            group1.setText(ControlExample.getResourceString("Title_Text"));
        } else {
            group1.setText("");
        }
        setExampleWidgetSize();
    }

    /**
     * Sets the state of the "Example" widgets.
     */
    @Override
    void setExampleWidgetState() {
        super.setExampleWidgetState();
        shadowEtchedInButton.setSelection((group1.getStyle() & SWT.SHADOW_ETCHED_IN) != 0);
        shadowEtchedOutButton.setSelection((group1.getStyle() & SWT.SHADOW_ETCHED_OUT) != 0);
        shadowInButton.setSelection((group1.getStyle() & SWT.SHADOW_IN) != 0);
        shadowOutButton.setSelection((group1.getStyle() & SWT.SHADOW_OUT) != 0);
        shadowNoneButton.setSelection((group1.getStyle() & SWT.SHADOW_NONE) != 0);
        borderButton.setSelection((group1.getStyle() & SWT.BORDER) != 0);
        if (!instance.startup)
            setTitleText();
    }
}