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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--lava.gui.ListenableLayoutManager
Adds LayoutListener support to any LayoutManager.
Details: ListenableLayoutManager
is a LayoutManager
that forwards most of its work to another LayoutManager
. This class adds LayoutListener
support to existing LayoutManager
implementations.
Field Summary | |
protected java.awt.LayoutManager |
lm
Represented LayoutManager. |
Constructor Summary | |
ListenableLayoutManager(java.awt.LayoutManager lm)
Specifies LayoutManager. |
Method Summary | |
void |
addLayoutComponent(java.lang.String s,
java.awt.Component c)
Forwards call to lm. |
void |
addLayoutListener(LayoutListener ll)
Subscribes LayoutListener to laidOutContainer messages. |
void |
layoutContainer(java.awt.Container c)
Forwards call to lm. |
java.awt.Dimension |
minimumLayoutSize(java.awt.Container c)
Forwards call to lm. |
protected void |
notifyListeners(java.awt.Container c)
Sends laidOutContainer messages to registered LayoutListeners. |
java.awt.Dimension |
preferredLayoutSize(java.awt.Container c)
Forwards call to lm. |
void |
removeLayoutComponent(java.awt.Component c)
Forwards call to lm. |
void |
removeLayoutListener(LayoutListener ll)
Unsubscribes LayoutListener to laidOutContainer messages. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
protected final java.awt.LayoutManager lm
Details: lm is the real LayoutManager
for which I am acting as a proxy. I forward most of my layout work to lm. This value is defined at construction time.
Constructor Detail |
public ListenableLayoutManager(java.awt.LayoutManager lm)
Details: This constructor prepares me to act as a proxy for the given LayoutManager
.
lm
- the LayoutManagerMethod Detail |
public void addLayoutListener(LayoutListener ll)
Details: addLayoutListener
adds ll, a LayoutListener
, to my list of registered LayoutListener
s. If ll is already registered, this does nothing.
ll
- the interested LayoutListenerpublic void removeLayoutListener(LayoutListener ll)
Details: removeLayoutListener
removes ll, a LayoutListener
, from my list of registered LayoutListener
s. No action is taken if ll is not registered.
ll
- the uninterested LayoutListenerprotected void notifyListeners(java.awt.Container c)
Details: notifyListeners
calls laidOutContainer(c)
for all registered LayoutListener
s.
c
- passed to laidOutContainerpublic void layoutContainer(java.awt.Container c)
Details: I forward layoutContainer
calls to lm, and then call notifyListeners(c)
on each of the registered LayoutListener
s to let them know that I just laid out a Container
.
layoutContainer
in interface java.awt.LayoutManager
c
- the Containerpublic void removeLayoutComponent(java.awt.Component c)
Details: I forward removeLayoutComponent
calls to lm.
removeLayoutComponent
in interface java.awt.LayoutManager
c
- a forwarded parameterpublic void addLayoutComponent(java.lang.String s, java.awt.Component c)
Details: I forward addLayoutComponent
calls to lm.
addLayoutComponent
in interface java.awt.LayoutManager
s
- a forwarded parameterc
- a forwarded parameterpublic java.awt.Dimension preferredLayoutSize(java.awt.Container c)
Details: I forward preferredLayoutSize
calls to lm and return the result.
preferredLayoutSize
in interface java.awt.LayoutManager
c
- a forwarded parameterpublic java.awt.Dimension minimumLayoutSize(java.awt.Container c)
Details: I forward minimumLayoutSize
calls to lm and return the result.
minimumLayoutSize
in interface java.awt.LayoutManager
c
- a forwarded parameter
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