public VerticalLayout() 
{
        this(5, CENTER, TOP);
}

Constructs an instance of VerticalLayout with a vertical vgap of 5 pixels, horizontal centering and anchored to the top of the display area.

 public VerticalLayout(int vgap) 
{
        this(vgap, CENTER, TOP);
}

Constructs a VerticalLayout instance with horizontal centering, anchored to the top with the specified vgap.

Parameters:

vgap - an int value indicating the vertical seperation of the components

 public VerticalLayout(int vgap,
    int alignment) 
{
        this(vgap, alignment, TOP);
}

Constructs a VerticalLayout instance anchored to the top with the specified vgap and horizontal alignment.

Parameters:

vgap - an int value indicating the vertical seperation of the components

alignment - an int value which is one of RIGHT, LEFT, CENTER, BOTH for the horizontal alignment.

 public VerticalLayout(int vgap,
    int alignment,
    int anchor) 
{
        this.vgap = vgap;
        this.alignment = alignment;
        this.anchor = anchor;
}

Constructs a VerticalLayout instance with the specified vgap, horizontal alignment and anchoring

Parameters:

vgap - an int value indicating the vertical seperation of the components

alignment - an int value which is one of RIGHT, LEFT, CENTER, BOTH for the horizontal alignment.

anchor - an int value which is one of TOP, BOTTOM, CENTER indicating where the components are to appear if the display area exceeds the minimum necessary.

 public  void addLayoutComponent(String name,
    Component comp) 
{

}

Not used by this class.

 public  void layoutContainer(Container parent) 
{
        Insets insets = parent.getInsets();
        // NOTUSED Dimension dim = layoutSize(parent, false);
        synchronized (parent.getTreeLock()) {
            int n = parent.getComponentCount();
            Dimension pd = parent.getSize();
            int y = 0;
            // work out the total size
            for (int i = 0; i <  n; i++) {
                Component c = parent.getComponent(i);
                Dimension d = c.getPreferredSize();
                y += d.height + vgap;
            }
            y -= vgap; // otherwise there's a vgap too many
            // Work out the anchor paint
            if (anchor == TOP) {
                y = insets.top;
            } else if (anchor == CENTER) {
                y = (pd.height - y) / 2;
            } else {
                y = pd.height - y - insets.bottom;
            }
            // do layout
            for (int i = 0; i <  n; i++) {
                Component c = parent.getComponent(i);
                Dimension d = c.getPreferredSize();
                int x = insets.left;
                int wid = d.width;
                if (alignment == CENTER) {
                    x = (pd.width - d.width) / 2;
                } else if (alignment == RIGHT) {
                    x = pd.width - d.width - insets.right;
                } else if (alignment == BOTH) {
                    wid = pd.width - insets.left - insets.right;
                }
                c.setBounds(x, y, wid, d.height);
                y += d.height + vgap;
            }
        }
}

Lays out the container.

 public Dimension minimumLayoutSize(Container parent) 
{
        return layoutSize(parent, true);
}

 public Dimension preferredLayoutSize(Container parent) 
{
        return layoutSize(parent, false);
}

 public  void removeLayoutComponent(Component comp) 
{

}

Not used by this class.

 public String toString() 
{
        return getClass().getName() + "[vgap=" + vgap + " align=" + alignment + " anchor=" + anchor + "]";
}