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Adjustable (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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java.awt
Interface Adjustable

All Known Implementing Classes:

JScrollBar, JScrollPane.ScrollBar, Scrollbar, ScrollPaneAdjustable

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public interface Adjustable

The interface for objects which have an adjustable numeric value contained within a bounded range of values.

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Field Summary
static int	HORIZONTAL           Indicates that the Adjustable has horizontal orientation.
static int	NO_ORIENTATION           Indicates that the Adjustable has no orientation.
static int	VERTICAL           Indicates that the Adjustable has vertical orientation.

 

Method Summary
void	addAdjustmentListener(AdjustmentListener l)           Adds a listener to receive adjustment events when the value of the adjustable object changes.
int	getBlockIncrement()           Gets the block value increment for the adjustable object.
int	getMaximum()           Gets the maximum value of the adjustable object.
int	getMinimum()           Gets the minimum value of the adjustable object.
int	getOrientation()           Gets the orientation of the adjustable object.
int	getUnitIncrement()           Gets the unit value increment for the adjustable object.
int	getValue()           Gets the current value of the adjustable object.
int	getVisibleAmount()           Gets the length of the proportional indicator.
void	removeAdjustmentListener(AdjustmentListener l)           Removes an adjustment listener.
void	setBlockIncrement(int b)           Sets the block value increment for the adjustable object.
void	setMaximum(int max)           Sets the maximum value of the adjustable object.
void	setMinimum(int min)           Sets the minimum value of the adjustable object.
void	setUnitIncrement(int u)           Sets the unit value increment for the adjustable object.
void	setValue(int v)           Sets the current value of the adjustable object.
void	setVisibleAmount(int v)           Sets the length of the proportional indicator of the adjustable object.

 

Field Detail

HORIZONTAL

static final int HORIZONTAL

Indicates that the Adjustable has horizontal orientation.

See Also:

Constant Field Values

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VERTICAL

static final int VERTICAL

Indicates that the Adjustable has vertical orientation.

See Also:

Constant Field Values

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NO_ORIENTATION

static final int NO_ORIENTATION

Indicates that the Adjustable has no orientation.

See Also:

Constant Field Values

Method Detail

getOrientation

int getOrientation()

Gets the orientation of the adjustable object.

Returns:

the orientation of the adjustable object; either HORIZONTAL, VERTICAL, or NO_ORIENTATION

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setMinimum

void setMinimum(int min)

Sets the minimum value of the adjustable object.

Parameters:

min - the minimum value

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getMinimum

int getMinimum()

Gets the minimum value of the adjustable object.

Returns:

the minimum value of the adjustable object

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setMaximum

void setMaximum(int max)

Sets the maximum value of the adjustable object.

Parameters:

max - the maximum value

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getMaximum

int getMaximum()

Gets the maximum value of the adjustable object.

Returns:

the maximum value of the adjustable object

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setUnitIncrement

void setUnitIncrement(int u)

Sets the unit value increment for the adjustable object.

Parameters:

u - the unit increment

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getUnitIncrement

int getUnitIncrement()

Gets the unit value increment for the adjustable object.

Returns:

the unit value increment for the adjustable object

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setBlockIncrement

void setBlockIncrement(int b)

Sets the block value increment for the adjustable object.

Parameters:

b - the block increment

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getBlockIncrement

int getBlockIncrement()

Gets the block value increment for the adjustable object.

Returns:

the block value increment for the adjustable object

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setVisibleAmount

void setVisibleAmount(int v)

Sets the length of the proportional indicator of the adjustable object.

Parameters:

v - the length of the indicator

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getVisibleAmount

int getVisibleAmount()

Gets the length of the proportional indicator.

Returns:

the length of the proportional indicator

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setValue

void setValue(int v)

Sets the current value of the adjustable object. If the value supplied is less than minimum or greater than maximum - visibleAmount, then one of those values is substituted, as appropriate.

Calling this method does not fire an AdjustmentEvent.

Parameters:

v - the current value, between minimum and maximum - visibleAmount

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getValue

int getValue()

Gets the current value of the adjustable object.

Returns:

the current value of the adjustable object

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addAdjustmentListener

void addAdjustmentListener(AdjustmentListener l)

Adds a listener to receive adjustment events when the value of the adjustable object changes.

Parameters:

l - the listener to receive events

See Also:

AdjustmentEvent

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removeAdjustmentListener

void removeAdjustmentListener(AdjustmentListener l)

Removes an adjustment listener.

Parameters:

l - the listener being removed

See Also:

AdjustmentEvent

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