/**
* Constructs a <code>BoxLayout</code> object.
*
* @param container The container that needs to be laid out.
* @param way The orientation of the components.
* @exception AWTError If way has an invalid value.
*/
public BoxLayout(Container container, int way) {
int width = 0;
int height = 0;
ComponentOrientation orientation = container.getComponentOrientation();
this.container = container;
this.way = way;
switch (way) {
case X_AXIS:
width = 1;
break;
case Y_AXIS:
height = 1;
break;
case LINE_AXIS:
if (orientation.isHorizontal()) height = 1;
else width = 1;
break;
case PAGE_AXIS:
if (!orientation.isHorizontal()) height = 1;
else width = 1;
break;
default:
throw new AWTError("Invalid value for way");
}
grid = new GridLayout(width, height);
}
/**
* Resolve the axis type of a component, given a layout orientation
*
* @param c a Swing Component, should be either a Box or a Container using a BoxLayout.
* @param layout the layout orientation of the component. One of {@link
* javax.swing.BoxLayout#X_AXIS}, {@link javax.swing.BoxLayout#Y_AXIS}, {@link
* javax.swing.BoxLayout#LINE_AXIS}, or {@link javax.swing.BoxLayout#PAGE_AXIS}.
* @return one of {@link javax.swing.BoxLayout#X_AXIS}, or {@link javax.swing.BoxLayout#Y_AXIS},
*/
public static int getAxis(JComponent c, int layout) {
ComponentOrientation o = c.getComponentOrientation();
switch (layout) {
case BoxLayout.LINE_AXIS:
return o.isHorizontal() ? BoxLayout.X_AXIS : BoxLayout.Y_AXIS;
case BoxLayout.PAGE_AXIS:
return o.isHorizontal() ? BoxLayout.Y_AXIS : BoxLayout.X_AXIS;
default:
return layout;
}
}
/**
* Constructs an instance of <code>AbstractFormBuilder</code> for the given FormLayout and layout
* container.
*
* @param layout the {@link FormLayout} to use
* @param container the layout container
* @throws NullPointerException if the layout or container is null
*/
public AbstractFormBuilder(FormLayout layout, Container container) {
if (layout == null) throw new NullPointerException("The layout must not be null.");
if (container == null) throw new NullPointerException("The layout container must not be null.");
this.container = container;
this.layout = layout;
container.setLayout(layout);
currentCellConstraints = new CellConstraints();
ComponentOrientation orientation = container.getComponentOrientation();
leftToRight = orientation.isLeftToRight() || !orientation.isHorizontal();
}
void setComponentOrientation(ComponentOrientation orientation) {
horizontal = orientation.isHorizontal();
leftToRight = orientation.isLeftToRight();
}