|
Préférences
Moteurs de recherche
|
||||||||||||||||||||||||||||
JavaTM 2 Platform Std. Ed. v1.6.0
javax.swing
|
Method Summary | |
---|---|
void |
addChangeListener(ChangeListener x)
Adds a ChangeListener to the model's listener list. |
int |
getExtent()
Returns the model's extent, the length of the inner range that begins at the model's value. |
int |
getMaximum()
Returns the model's maximum. |
int |
getMinimum()
Returns the minimum acceptable value. |
int |
getValue()
Returns the model's current value. |
boolean |
getValueIsAdjusting()
Returns true if the current changes to the value property are part of a series of changes. |
void |
removeChangeListener(ChangeListener x)
Removes a ChangeListener from the model's listener list. |
void |
setExtent(int newExtent)
Sets the model's extent. |
void |
setMaximum(int newMaximum)
Sets the model's maximum to newMaximum. |
void |
setMinimum(int newMinimum)
Sets the model's minimum to newMinimum. |
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. |
void |
setValue(int newValue)
Sets the model's current value to newValue if newValue
satisfies the model's constraints. |
void |
setValueIsAdjusting(boolean b)
This attribute indicates that any upcoming changes to the value of the model should be considered a single event. |
Method Detail |
---|
int getMinimum()
setMinimum(int)
void setMinimum(int newMinimum)
minimum <= value <= value+extent <= maximum
Notifies any listeners if the model changes.
newMinimum
- the model's new minimumgetMinimum()
,
addChangeListener(javax.swing.event.ChangeListener)
int getMaximum()
setMaximum(int)
,
setExtent(int)
void setMaximum(int newMaximum)
minimum <= value <= value+extent <= maximum
Notifies any listeners if the model changes.
newMaximum
- the model's new maximumgetMaximum()
,
addChangeListener(javax.swing.event.ChangeListener)
int getValue()
maximum - extent
and the lower limit is minimum
.
setValue(int)
void setValue(int newValue)
newValue
if newValue
satisfies the model's constraints. Those constraints are:
minimum <= value <= value+extent <= maximumOtherwise, 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.
newValue
- the model's new valuegetValue()
void setValueIsAdjusting(boolean b)
Sliders and scrollbars use this property when a drag is underway.
b
- true if the upcoming changes to the value property are part of a seriesboolean getValueIsAdjusting()
setValueIsAdjusting(boolean)
int getExtent()
setExtent(int)
,
setValue(int)
void setExtent(int newExtent)
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.
newExtent
- the model's new extentgetExtent()
,
setValue(int)
void setRangeProperties(int value, int extent, int min, int max, boolean adjusting)
value
- an int giving the current valueextent
- an int giving the amount by which the value can "jump"min
- an int giving the minimum valuemax
- an int giving the maximum valueadjusting
- a boolean, true if a series of changes are in
progresssetValue(int)
,
setExtent(int)
,
setMinimum(int)
,
setMaximum(int)
,
setValueIsAdjusting(boolean)
void addChangeListener(ChangeListener x)
x
- the ChangeListener to addremoveChangeListener(javax.swing.event.ChangeListener)
void removeChangeListener(ChangeListener x)
x
- the ChangeListener to removeaddChangeListener(javax.swing.event.ChangeListener)