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Group Examples

Instances of this class provide an etched border with an optional title.

Snippet

Group Snippet

Demonstrates the use of SWT Group widget with various controls inside.

This example creates a shell with multiple groups containing different types of widgets:

  • A group with buttons arranged vertically

  • A group with text input fields

  • A group with checkboxes

Each group has a title and organizes related controls together.

GroupSnippet.java 
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package dev.equo;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.*;

import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;

/**
 * Demonstrates the use of SWT Group widget with various controls inside.
 * This example creates a shell with multiple groups containing different types of widgets:
 * - A group with buttons arranged vertically
 * - A group with text input fields
 * - A group with checkboxes
 * Each group has a title and organizes related controls together.
 */
public class GroupSnippet {
    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("Group Widget Example");
        shell.setLayout(new GridLayout(1, false));
        shell.setSize(600, 600);

        // Create first group with text fields
        Group textGroup = new Group(shell, SWT.SHADOW_ETCHED_IN);
        textGroup.setText("Text Input");
        textGroup.setLayout(new GridLayout(2, false));
        GridData textGroupData = new GridData(SWT.FILL, SWT.CENTER, true, false);
        textGroupData.heightHint = 80;
        textGroup.setLayoutData(textGroupData);

        Label nameLabel = new Label(textGroup, SWT.NONE);
        nameLabel.setText("Name:");

        Text nameText = new Text(textGroup, SWT.BORDER);
        GridData nameData = new GridData(SWT.FILL, SWT.CENTER, true, false);
        nameData.widthHint = 200;
        nameText.setLayoutData(nameData);

        Label emailLabel = new Label(textGroup, SWT.NONE);
        emailLabel.setText("Email:");

        Text emailText = new Text(textGroup, SWT.BORDER);
        GridData emailData = new GridData(SWT.FILL, SWT.CENTER, true, false);
        emailData.widthHint = 200;
        emailText.setLayoutData(emailData);

        // Create second group with buttons
        Group buttonGroup = new Group(shell, SWT.SHADOW_ETCHED_IN);
        buttonGroup.setText("Button Controls");
        buttonGroup.setLayout(new RowLayout(SWT.VERTICAL));
        GridData buttonGroupData = new GridData(SWT.FILL, SWT.CENTER, true, false);
        buttonGroupData.heightHint = 150;
        buttonGroup.setLayoutData(buttonGroupData);

        Button pushButton = new Button(buttonGroup, SWT.PUSH);
        pushButton.setText("Push Button");
        pushButton.addSelectionListener(widgetSelectedAdapter(e ->
            System.out.println("Push button clicked")));

        Button toggleButton = new Button(buttonGroup, SWT.TOGGLE);
        toggleButton.setText("Toggle Button");
        toggleButton.addSelectionListener(widgetSelectedAdapter(e ->
            System.out.println("Toggle button clicked")));

        // Create third group with checkboxes
        Group checkGroup = new Group(shell, SWT.SHADOW_ETCHED_IN);
        checkGroup.setText("Options");
        checkGroup.setLayout(new RowLayout(SWT.VERTICAL));
        GridData checkGroupData = new GridData(SWT.FILL, SWT.CENTER, true, false);
        checkGroupData.heightHint = 120;
        checkGroup.setLayoutData(checkGroupData);

        Button check1 = new Button(checkGroup, SWT.CHECK);
        check1.setText("Enable notifications");
        check1.setSelection(true);
        check1.addSelectionListener(widgetSelectedAdapter(e ->
            System.out.println("Notifications: " + check1.getSelection())));

        Button check2 = new Button(checkGroup, SWT.CHECK);
        check2.setText("Auto-save");
        check2.addSelectionListener(widgetSelectedAdapter(e ->
            System.out.println("Auto-save: " + check2.getSelection())));

        Button check3 = new Button(checkGroup, SWT.CHECK);
        check3.setText("Show advanced options");
        check3.addSelectionListener(widgetSelectedAdapter(e ->
            System.out.println("Advanced options: " + check3.getSelection())));

        // Create empty group to demonstrate minimal Group
        Group emptyGroup = new Group(shell, SWT.SHADOW_ETCHED_IN);
        emptyGroup.setText("Empty Group");
        emptyGroup.setLayout(new GridLayout());
        GridData emptyGroupData = new GridData(SWT.FILL, SWT.CENTER, true, false);
        emptyGroupData.heightHint = 80;
        emptyGroup.setLayoutData(emptyGroupData);

        Label emptyLabel = new Label(emptyGroup, SWT.CENTER);
        emptyLabel.setText("(No controls yet)");
        emptyLabel.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, false));

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

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