Snippet118.java Source code

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Here is the source code for Snippet118.java

Source

/*
 * Cursor example snippet: create a color cursor from an image file
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Cursor;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

public class Snippet118 {

    public static void main(String[] args) {
        final Display display = new Display();
        final Shell shell = new Shell(display);
        shell.setSize(150, 150);
        final Cursor[] cursor = new Cursor[1];
        Button button = new Button(shell, SWT.PUSH);
        button.setText("Change cursor");
        Point size = button.computeSize(SWT.DEFAULT, SWT.DEFAULT);
        button.setSize(size);
        button.addListener(SWT.Selection, new Listener() {
            public void handleEvent(Event e) {
                FileDialog dialog = new FileDialog(shell);
                dialog.setFilterExtensions(new String[] { "*.ico", "*.gif", "*.*" });
                String name = dialog.open();
                if (name == null)
                    return;
                ImageData image = new ImageData(name);
                Cursor oldCursor = cursor[0];
                cursor[0] = new Cursor(display, image, 0, 0);
                shell.setCursor(cursor[0]);
                if (oldCursor != null)
                    oldCursor.dispose();
            }
        });
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        if (cursor[0] != null)
            cursor[0].dispose();
        display.dispose();
    }
}