/**
* This method adds a component to the JSplitPane. The constraints object is a string that
* identifies where this component should go. If the constraints is not a known one, it will throw
* an IllegalArgumentException. The valid constraints are LEFT, TOP, RIGHT, BOTTOM and DIVIDER.
*
* @param comp The component to add.
* @param constraints The constraints string to use.
* @param index Where to place to component in the list of components.
* @throws IllegalArgumentException When the constraints is not a known identifier.
*/
protected void addImpl(Component comp, Object constraints, int index) {
int left = 0;
int right = 1;
int div = 2;
int place;
if (constraints == null) {
if (leftComponent == null) constraints = LEFT;
else if (rightComponent == null) constraints = RIGHT;
}
if (constraints instanceof String) {
String placement = (String) constraints;
if (placement.equals(BOTTOM) || placement.equals(RIGHT)) {
if (rightComponent != null) remove(rightComponent);
rightComponent = comp;
} else if (placement.equals(LEFT) || placement.equals(TOP)) {
if (leftComponent != null) remove(leftComponent);
leftComponent = comp;
} else if (placement.equals(DIVIDER)) constraints = null;
else throw new IllegalArgumentException("Constraints is not a known identifier.");
// If no dividerLocation has been set, then we need to trigger an
// initial layout.
if (getDividerLocation() != -1) resetToPreferredSizes();
super.addImpl(comp, constraints, index);
}
}
@Override
protected void addImpl(final Component comp, Object constraints, int index) {
super.addImpl(comp, constraints, index);
comp.addMouseMotionListener(
new MouseAdapter() {
@Override
public void mouseMoved(MouseEvent e) {
lastScreen =
componentToImage(comp, new Rectangle(0, 0, comp.getWidth(), comp.getHeight()));
}
});
comp.addMouseListener(
new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
setBorder(new ResizableBorder(6));
}
@Override
public void mousePressed(MouseEvent e) {
mouse = true;
}
@Override
public void mouseReleased(MouseEvent e) {
mouse = false;
}
});
}
/**
* Overridden to enforce the position of the glass component as the zero child.
*
* @param comp the component to be enhanced
* @param constraints the constraints to be respected
* @param index the index
*/
protected void addImpl(Component comp, Object constraints, int index) {
super.addImpl(comp, constraints, index);
/// We are making sure the glassPane is on top.
if (glassPane != null && glassPane.getParent() == this && getComponent(0) != glassPane) {
add(glassPane, 0);
}
}
/**
* This method overrides Container's addImpl method. If a JButton is added, it is disabled.
*
* @param component The Component to add.
* @param constraints The Constraints placed on the component.
* @param index The index to place the Component at.
*/
protected void addImpl(Component component, Object constraints, int index) {
// XXX: Sun says disable button but test cases show otherwise.
super.addImpl(component, constraints, index);
// if we added a Swing Button then adjust this a little
if (component instanceof AbstractButton) {
AbstractButton b = (AbstractButton) component;
b.setRolloverEnabled(rollover);
}
} // addImpl()