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Java™ Platform Standard Ed. 6 |
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java.lang.Objectjavax.swing.DefaultBoundedRangeModel
public class DefaultBoundedRangeModel
A generic implementation of BoundedRangeModel.
Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing. As of 1.4, support for long term storage
of all JavaBeansTM
has been added to the java.beans package.
Please see XMLEncoder.
BoundedRangeModel| Field Summary | |
|---|---|
protected ChangeEvent |
changeEvent
Only one ChangeEvent is needed per model instance since the
event's only (read-only) state is the source property. |
protected EventListenerList |
listenerList
The listeners waiting for model changes. |
| Constructor Summary | |
|---|---|
DefaultBoundedRangeModel()
Initializes all of the properties with default values. |
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DefaultBoundedRangeModel(int value,
int extent,
int min,
int max)
Initializes value, extent, minimum and maximum. |
|
| Method Summary | ||
|---|---|---|
void |
addChangeListener(ChangeListener l)
Adds a ChangeListener. |
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protected void |
fireStateChanged()
Runs each ChangeListener's stateChanged method. |
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ChangeListener[] |
getChangeListeners()
Returns an array of all the change listeners registered on this DefaultBoundedRangeModel. |
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int |
getExtent()
Returns the model's extent. |
|
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getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered as FooListeners
upon this model. |
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int |
getMaximum()
Returns the model's maximum. |
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int |
getMinimum()
Returns the model's minimum. |
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int |
getValue()
Returns the model's current value. |
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boolean |
getValueIsAdjusting()
Returns true if the value is in the process of changing as a result of actions being taken by the user. |
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void |
removeChangeListener(ChangeListener l)
Removes a ChangeListener. |
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void |
setExtent(int n)
Sets the extent to n after ensuring that n is greater than or equal to zero and falls within the model's constraints: |
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void |
setMaximum(int n)
Sets the maximum to n after ensuring that n that the other three properties obey the model's constraints: |
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void |
setMinimum(int n)
Sets the minimum to n after ensuring that n that the other three properties obey the model's constraints: |
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void |
setRangeProperties(int newValue,
int newExtent,
int newMin,
int newMax,
boolean adjusting)
Sets all of the BoundedRangeModel properties after forcing
the arguments to obey the usual constraints: |
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void |
setValue(int n)
Sets the current value of the model. |
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void |
setValueIsAdjusting(boolean b)
Sets the valueIsAdjusting property. |
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String |
toString()
Returns a string that displays all of the BoundedRangeModel properties. |
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| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Field Detail |
|---|
protected transient ChangeEvent changeEvent
ChangeEvent is needed per model instance since the
event's only (read-only) state is the source property. The source
of events generated here is always "this".
protected EventListenerList listenerList
| Constructor Detail |
|---|
public DefaultBoundedRangeModel()
value = 0
extent = 0
minimum = 0
maximum = 100
adjusting = false
public DefaultBoundedRangeModel(int value,
int extent,
int min,
int max)
IllegalArgumentException if the following
constraints aren't satisfied:
min <= value <= value+extent <= max
| Method Detail |
|---|
public int getValue()
getValue in interface BoundedRangeModelsetValue(int),
BoundedRangeModel.getValue()public int getExtent()
getExtent in interface BoundedRangeModelsetExtent(int),
BoundedRangeModel.getExtent()public int getMinimum()
getMinimum in interface BoundedRangeModelsetMinimum(int),
BoundedRangeModel.getMinimum()public int getMaximum()
getMaximum in interface BoundedRangeModelsetMaximum(int),
BoundedRangeModel.getMaximum()public void setValue(int n)
minimum <= value <= value+extent <= maximum
setValue in interface BoundedRangeModeln - the model's new valueBoundedRangeModel.setValue(int)public void setExtent(int n)
minimum <= value <= value+extent <= maximum
setExtent in interface BoundedRangeModeln - the model's new extentBoundedRangeModel.setExtent(int)public void setMinimum(int n)
minimum <= value <= value+extent <= maximum
setMinimum in interface BoundedRangeModeln - the model's new minimumgetMinimum(),
BoundedRangeModel.setMinimum(int)public void setMaximum(int n)
minimum <= value <= value+extent <= maximum
setMaximum in interface BoundedRangeModeln - the model's new maximumBoundedRangeModel.setMaximum(int)public void setValueIsAdjusting(boolean b)
valueIsAdjusting property.
setValueIsAdjusting in interface BoundedRangeModelb - true if the upcoming changes to the value property are part of a seriesgetValueIsAdjusting(),
setValue(int),
BoundedRangeModel.setValueIsAdjusting(boolean)public boolean getValueIsAdjusting()
getValueIsAdjusting in interface BoundedRangeModelvalueIsAdjusting propertysetValue(int),
BoundedRangeModel.getValueIsAdjusting()
public void setRangeProperties(int newValue,
int newExtent,
int newMin,
int newMax,
boolean adjusting)
BoundedRangeModel properties after forcing
the arguments to obey the usual constraints:
minimum <= value <= value+extent <= maximum
At most, one ChangeEvent is generated.
setRangeProperties in interface BoundedRangeModelnewValue - an int giving the current valuenewExtent - an int giving the amount by which the value can "jump"newMin - an int giving the minimum valuenewMax - an int giving the maximum valueadjusting - a boolean, true if a series of changes are in
progressBoundedRangeModel.setRangeProperties(int, int, int, int, boolean),
setValue(int),
setExtent(int),
setMinimum(int),
setMaximum(int),
setValueIsAdjusting(boolean)public void addChangeListener(ChangeListener l)
ChangeListener. The change listeners are run each
time any one of the Bounded Range model properties changes.
addChangeListener in interface BoundedRangeModell - the ChangeListener to addremoveChangeListener(javax.swing.event.ChangeListener),
BoundedRangeModel.addChangeListener(javax.swing.event.ChangeListener)public void removeChangeListener(ChangeListener l)
ChangeListener.
removeChangeListener in interface BoundedRangeModell - the ChangeListener to removeaddChangeListener(javax.swing.event.ChangeListener),
BoundedRangeModel.removeChangeListener(javax.swing.event.ChangeListener)public ChangeListener[] getChangeListeners()
DefaultBoundedRangeModel.
ChangeListeners
or an empty
array if no change listeners are currently registeredaddChangeListener(javax.swing.event.ChangeListener),
removeChangeListener(javax.swing.event.ChangeListener)protected void fireStateChanged()
ChangeListener's stateChanged method.
setRangeProperties(int, int, int, int, boolean),
EventListenerListpublic String toString()
BoundedRangeModel properties.
toString in class Objectpublic <T extends EventListener> T[] getListeners(Class<T> listenerType)
FooListeners
upon this model.
FooListeners
are registered using the addFooListener method.
You can specify the listenerType argument
with a class literal, such as FooListener.class.
For example, you can query a DefaultBoundedRangeModel
instance m
for its change listeners
with the following code:
ChangeListener[] cls = (ChangeListener[])(m.getListeners(ChangeListener.class));If no such listeners exist, this method returns an empty array.
listenerType - the type of listeners requested;
this parameter should specify an interface
that descends from java.util.EventListener
FooListeners
on this model,
or an empty array if no such
listeners have been added
ClassCastException - if listenerType doesn't
specify a class or interface that implements
java.util.EventListenergetChangeListeners()
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Java™ Platform Standard Ed. 6 |
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