- Grow as their parent composite grows.
- Shrink as their parent composite shrinks.
- Usually, you enable these properties with controls such as Text, List, Tree, Table, or Canvas.
- The default value of each of the two properties is false.
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Shell;
public class GridLayoutGrabExpressionSpace {
public static void main(String[] args) {
Display display = new Display();
final Shell shell = new Shell(display);
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = 2;
gridLayout.makeColumnsEqualWidth = true;
shell.setLayout(gridLayout);
Button button1 = new Button(shell, SWT.PUSH);
button1.setText("button1"); // Default alignment
List list = new List(shell, SWT.BORDER);
list.add("item 1");
list.add("item 2");
list.add("item 3");
GridData gridData = new GridData();
gridData.grabExcessHorizontalSpace = true;
gridData.horizontalAlignment = GridData.FILL;
list.setLayoutData(gridData);
Button button2 = new Button(shell, SWT.PUSH);
button2.setText("button #2");
button2.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_END));
Button button3 = new Button(shell, SWT.PUSH);
button3.setText("3");
shell.setSize(450, 400);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}
