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Link Examples

Instances of this class represent a selectable user interface object that displays a text with links.

Snippet

Link Snippet

Demonstrates the use of the Link widget with custom link colors.

This example creates a Link widget with a simple hyperlink and provides buttons to customize the link foreground color. It shows how to:

  • Create a Link widget with HTML-like anchor tags
  • Set a custom link foreground color using setLinkForeground()
  • Reset the link color to the system default by passing null
  • Use ColorDialog to let users choose colors interactively
LinkSnippet.java 
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package dev.equo;

import static org.eclipse.swt.events.SelectionListener.*;
import org.eclipse.swt.*;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.program.Program;
import org.eclipse.swt.widgets.*;

/**
 * Demonstrates the use of the Link widget with custom link colors.
 * <p>
 * This example creates a Link widget with a simple hyperlink and provides
 * buttons to customize the link foreground color. It shows how to:
 * </p>
 * <ul>
 * <li>Create a Link widget with HTML-like anchor tags</li>
 * <li>Set a custom link foreground color using setLinkForeground()</li>
 * <li>Reset the link color to the system default by passing null</li>
 * <li>Use ColorDialog to let users choose colors interactively</li>
 * </ul>
 */

public class LinkSnippet {

    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("LinkSnippet");
        shell.setLayout(new RowLayout());

        Link link = new Link(shell, SWT.NONE);
        link.setText("This a very simple link widget <a>https://www.equo.dev/</a> ");
        link.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                if (e.text != null && !e.text.isEmpty()) {
                    try {
                        Program.launch(e.text);
                    } catch (Exception ex) {
                        ex.printStackTrace();
                    }
                }
            }
        });

        Button setButton = new Button(shell, SWT.PUSH);
        setButton.setText("Choose link color");
        setButton.addSelectionListener(widgetSelectedAdapter(e -> {
            System.out.println("default link color " + link.getLinkForeground());
            ColorDialog colorDialog = new ColorDialog(shell);
            RGB color = colorDialog.open();
            link.setLinkForeground(new Color(color));
            System.out.println("user selected link color " + link.getLinkForeground());
        }));

        Button resetButton = new Button(shell, SWT.PUSH);
        resetButton.setText("Reset link color");
        resetButton.addSelectionListener(widgetSelectedAdapter(e -> {
            System.out.println("link color reset to system default");
            link.setLinkForeground(null);
        }));

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

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