org.gnu.gtk

Class Adjustment

public class Adjustment extends GtkObject

This object stores geometry information, such as upper and lower bounds, step and page increments, and the size of a page. Other objects use an Adjustment object to store their internal dimension settings. It also is passed as an argument to specify geometry.

Constructor Summary
	Adjustment(Handle handle) Construct a new Adjustment from a handle to a native resource.
	Adjustment(double value, double lower, double upper, double stepIncrement, double pageIncrement, double pageSize) Constructs a new adjustment

Method Summary
void	addListener(AdjustmentListener listener) Register an object to handle spin events.
void	clampPage(double lower, double upper) Updates the GtkAdjustment value to ensure that the range between lower and upper is in the current page (ie between value and value + pageSize).
static Adjustment	getAdjustment(Handle handle) Internal static factory method to be used by Java-Gnome only.
Class	getEventListenerClass(String signal) Event Handling
EventType	getEventType(String signal)
double	getLower() Gets the minimum value of the adjustment
double	getPageIncrement() Gets the page increment of the adjustment.
double	getPageSize() Gets the page size of the adjustment.
double	getStepIncrement() Gets the step increment of the adjustment.
static Type	getType() Retrieve the runtime type used by the GLib library.
double	getUpper() Gets the maximum value of the adjustment.
double	getValue() Gets the current value of the adjustment.
void	handleChanged()
void	removeListener(AdjustmentListener listener) Removes a listener
void	setLower(double lower)
void	setPageIncrement(double pageIncrement)
void	setPageSize(double pageSize)
void	setStepIncrement(double stepIncrement)
void	setUpper(double upper)
void	setValue(double value) Sets the GtkAdjustment value.

Constructor Detail

Adjustment

public Adjustment(Handle handle)

Construct a new Adjustment from a handle to a native resource.

Adjustment

public Adjustment(double value, double lower, double upper, double stepIncrement, double pageIncrement, double pageSize)

Constructs a new adjustment

Parameters: value The initial value. lower The minimum value. upper The maximum value. stepIncrement The step increment. pageIncrement The page increment. pageSize The page size.

Method Detail

addListener

public void addListener(AdjustmentListener listener)

clampPage

public void clampPage(double lower, double upper)

Updates the GtkAdjustment value to ensure that the range between lower and upper is in the current page (ie between value and value + pageSize). If the range is larger than the page size, then only the start of it will be in the current page. A "changed" signal will be emitted if the value is changed.

getAdjustment

public static Adjustment getAdjustment(Handle handle)

Internal static factory method to be used by Java-Gnome only.

getEventListenerClass

public Class getEventListenerClass(String signal)

Event Handling

getEventType

public EventType getEventType(String signal)

getLower

public double getLower()

Gets the minimum value of the adjustment

Returns: The minimum value of the adjustment.

getPageIncrement

public double getPageIncrement()

Gets the page increment of the adjustment.

Returns: The page increment of the adjustment.

getPageSize

public double getPageSize()

Gets the page size of the adjustment. Note that the page-size is irrelevant and should be set to zero if the adjustment is used for a simple scalar value, e.g. in a SpinButton.

Returns: The page size of the adjustment.