Snippet6.java Source code

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Here is the source code for Snippet6.java

Source

/*
 * GridLayout example snippet: insert widgets into a grid layout
 *
 * 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.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

public class Snippet6 {

    public static void main(String[] args) {
        Display display = new Display();
        final Shell shell = new Shell(display);
        shell.setLayout(new GridLayout());
        final Composite c = new Composite(shell, SWT.NONE);
        GridLayout layout = new GridLayout();
        layout.numColumns = 3;
        c.setLayout(layout);
        for (int i = 0; i < 10; i++) {
            Button b = new Button(c, SWT.PUSH);
            b.setText("Button " + i);
        }

        Button b = new Button(shell, SWT.PUSH);
        b.setText("add a new button at row 2 column 1");
        final int[] index = new int[1];
        b.addListener(SWT.Selection, new Listener() {
            public void handleEvent(Event e) {
                Button s = new Button(c, SWT.PUSH);
                s.setText("Special " + index[0]);
                index[0]++;
                Control[] children = c.getChildren();
                s.moveAbove(children[3]);
                shell.layout(new Control[] { s });
            }
        });

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

}