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JavaTM 2 Platform Std. Ed. v1.6.0
javax.swing
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Field Summary | |
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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 | |
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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 | ||
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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 FooListener s
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. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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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 |
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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 |
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public int getValue()
getValue
in interface BoundedRangeModel
setValue(int)
,
BoundedRangeModel.getValue()
public int getExtent()
getExtent
in interface BoundedRangeModel
setExtent(int)
,
BoundedRangeModel.getExtent()
public int getMinimum()
getMinimum
in interface BoundedRangeModel
setMinimum(int)
,
BoundedRangeModel.getMinimum()
public int getMaximum()
getMaximum
in interface BoundedRangeModel
setMaximum(int)
,
BoundedRangeModel.getMaximum()
public void setValue(int n)
minimum <= value <= value+extent <= maximum
setValue
in interface BoundedRangeModel
n
- the model's new valueBoundedRangeModel.setValue(int)
public void setExtent(int n)
minimum <= value <= value+extent <= maximum
setExtent
in interface BoundedRangeModel
n
- the model's new extentBoundedRangeModel.setExtent(int)
public void setMinimum(int n)
minimum <= value <= value+extent <= maximum
setMinimum
in interface BoundedRangeModel
n
- the model's new minimumgetMinimum()
,
BoundedRangeModel.setMinimum(int)
public void setMaximum(int n)
minimum <= value <= value+extent <= maximum
setMaximum
in interface BoundedRangeModel
n
- the model's new maximumBoundedRangeModel.setMaximum(int)
public void setValueIsAdjusting(boolean b)
valueIsAdjusting
property.
setValueIsAdjusting
in interface BoundedRangeModel
b
- 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 BoundedRangeModel
valueIsAdjusting
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 BoundedRangeModel
newValue
- 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 BoundedRangeModel
l
- the ChangeListener to addremoveChangeListener(javax.swing.event.ChangeListener)
,
BoundedRangeModel.addChangeListener(javax.swing.event.ChangeListener)
public void removeChangeListener(ChangeListener l)
ChangeListener
.
removeChangeListener
in interface BoundedRangeModel
l
- the ChangeListener
to removeaddChangeListener(javax.swing.event.ChangeListener)
,
BoundedRangeModel.removeChangeListener(javax.swing.event.ChangeListener)
public ChangeListener[] getChangeListeners()
DefaultBoundedRangeModel
.
ChangeListener
s
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.
public String toString()
BoundedRangeModel
properties.
public <T extends EventListener> T[] getListeners(Class<T> listenerType)
FooListener
s
upon this model.
FooListener
s
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
FooListener
s
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.EventListener
getChangeListeners()