LineBackgroundListenerTest.java Source code

Introduction

Here is the source code for LineBackgroundListenerTest.java

Source

//Send questions, comments, bug reports, etc. to the authors:

//Rob Warner (rwarner@interspatial.com)
//Robert Harris (rbrt_harris@yahoo.com)

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

/**
 * This class demonstrates LineBackgroundListeners
 */
public class LineBackgroundListenerTest {
    // The color to use for backgrounds
    Color red;

    /**
     * Runs the application
     */
    public void run() {
        Display display = new Display();
        red = display.getSystemColor(SWT.COLOR_RED);
        Shell shell = new Shell(display);
        createContents(shell);
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                display.sleep();
            }
        }
        display.dispose();
    }

    /**
     * Creates the main window's contents
     * 
     * @param shell the main window
     */
    private void createContents(Shell shell) {
        shell.setLayout(new FillLayout());
        StyledText styledText = new StyledText(shell, SWT.BORDER);

        // Add the line background listener
        styledText.addLineBackgroundListener(new LineBackgroundListener() {
            public void lineGetBackground(LineBackgroundEvent event) {
                if (event.lineText.indexOf("SWT") > -1) {
                    event.lineBackground = red;
                }
            }
        });

    }

    /**
     * The application entry point
     * 
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new LineBackgroundListenerTest().run();
    }
}