Methods Summary |
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public void | addChangeListener(javax.swing.event.ChangeListener x)Adds a ChangeListener to the model's listener list.
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public int | getExtent()Returns the model's extent, the length of the inner range that
begins at the model's value.
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public int | getMaximum()Returns the model's maximum. Note that the upper
limit on the model's value is (maximum - extent).
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public int | getMinimum()Returns the minimum acceptable value.
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public int | getValue()Returns the model's current value. Note that the upper
limit on the model's value is maximum - extent
and the lower limit is minimum .
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public boolean | getValueIsAdjusting()Returns true if the current changes to the value property are part
of a series of changes.
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public void | removeChangeListener(javax.swing.event.ChangeListener x)Removes a ChangeListener from the model's listener list.
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public void | setExtent(int newExtent)Sets the model's extent. The newExtent is forced to
be greater than or equal to zero and less than or equal to
maximum - value.
When a BoundedRange model is used with a scrollbar the extent
defines the length of the scrollbar knob (aka the "thumb" or
"elevator"). The extent usually represents how much of the
object being scrolled is visible. When used with a slider,
the extent determines how much the value can "jump", for
example when the user presses PgUp or PgDn.
Notifies any listeners if the model changes.
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public void | setMaximum(int newMaximum)Sets the model's maximum to newMaximum. The other
three properties may be changed as well, to ensure that
minimum <= value <= value+extent <= maximum
Notifies any listeners if the model changes.
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public void | setMinimum(int newMinimum)Sets the model's minimum to newMinimum. The
other three properties may be changed as well, to ensure
that:
minimum <= value <= value+extent <= maximum
Notifies any listeners if the model changes.
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public void | setRangeProperties(int value, int extent, int min, int max, boolean adjusting)This method sets all of the model's data with a single method call.
The method results in a single change event being generated. This is
convenient when you need to adjust all the model data simultaneously and
do not want individual change events to occur.
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public void | setValue(int newValue)Sets the model's current value to newValue if newValue
satisfies the model's constraints. Those constraints are:
minimum <= value <= value+extent <= maximum
Otherwise, if newValue is less than minimum
it's set to minimum , if its greater than
maximum then it's set to maximum , and
if it's greater than value+extent then it's set to
value+extent .
When a BoundedRange model is used with a scrollbar the value
specifies the origin of the scrollbar knob (aka the "thumb" or
"elevator"). The value usually represents the origin of the
visible part of the object being scrolled.
Notifies any listeners if the model changes.
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public void | setValueIsAdjusting(boolean b)This attribute indicates that any upcoming changes to the value
of the model should be considered a single event. This attribute
will be set to true at the start of a series of changes to the value,
and will be set to false when the value has finished changing. Normally
this allows a listener to only take action when the final value change in
committed, instead of having to do updates for all intermediate values.
Sliders and scrollbars use this property when a drag is underway.
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