Package org.eclipse.swt.widgets

Class DateTime

java.lang.Object

org.eclipse.swt.widgets.Widget

org.eclipse.swt.widgets.Control

org.eclipse.swt.widgets.Scrollable

org.eclipse.swt.widgets.Composite

org.eclipse.swt.widgets.DateTime

All Implemented Interfaces:

Adaptable, Drawable

public class DateTime
extends Composite

Instances of this class are selectable user interface objects that allow the user to enter and modify date or time values.

Note that although this class is a subclass of Composite, it does not make sense to add children to it, or set a layout on it.

Styles:

DATE, TIME, CALENDAR, SHORT, MEDIUM, LONG, DROP_DOWN

Events:

Selection

Note: Only one of the styles DATE, TIME, or CALENDAR may be specified, and only one of the styles SHORT, MEDIUM, or LONG may be specified. The DROP_DOWN style is a HINT, and it is only valid with the DATE style.

IMPORTANT: This class is not intended to be subclassed.

Since:

1.1.1

Constructor Summary

Constructors

Constructor	Description
DateTime(Composite parent, int style)	Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.

Method Summary

Modifier and Type	Method	Description
void	addSelectionListener(SelectionListener listener)	Adds the listener to the collection of listeners who will be notified when the control is selected by the user, by sending it one of the messages defined in the SelectionListener interface.
Point	computeSize(int wHint, int hHint, boolean changed)	Returns the preferred size of the receiver.
<T> T	getAdapter(Class<T> adapter)	Implementation of the Adaptable interface.
int	getDay()	Returns the receiver's date, or day of the month.
int	getHours()	Returns the receiver's hours.
Date	getMaximum()	Returns the maximum value which the receiver will allow or null if no maximum limit is applied.
Date	getMinimum()	Returns the minimum value which the receiver will allow or null if no minimum limit is applied.
int	getMinutes()	Returns the receiver's minutes.
int	getMonth()	Returns the receiver's month.
int	getSeconds()	Returns the receiver's seconds.
int	getYear()	Returns the receiver's year.
void	removeSelectionListener(SelectionListener listener)	Removes the listener from the collection of listeners who will be notified when the control is selected by the user.
void	setBounds(Rectangle bounds)	Sets the receiver's size and location to the rectangular area specified by the argument.
void	setDate(int year, int month, int day)	Sets the receiver's year, month, and day in a single operation.
void	setDay(int day)	Sets the receiver's date, or day of the month, to the specified day.
void	setFont(Font font)	Sets the font that the receiver will use to paint textual information to the font specified by the argument, or to the default font for that kind of control if the argument is null.
void	setHours(int hours)	Sets the receiver's hours.
void	setMaximum(Date date)	Sets the maximum value.
void	setMinimum(Date date)	Sets the minimum value.
void	setMinutes(int minutes)	Sets the receiver's minutes.
void	setMonth(int month)	Sets the receiver's month.
void	setSeconds(int seconds)	Sets the receiver's seconds.
void	setTime(int hours, int minutes, int seconds)	Sets the receiver's hours, minutes, and seconds in a single operation.
void	setYear(int year)	Sets the receiver's year.

Methods inherited from class org.eclipse.swt.widgets.Composite

changed, getBackgroundMode, getChildren, getLayout, getLayoutDeferred, getTabList, isLayoutDeferred, layout, layout, layout, layout, layout, setBackgroundMode, setFocus, setLayout, setLayoutDeferred, setTabList

Methods inherited from class org.eclipse.swt.widgets.Scrollable

computeTrim, getClientArea, getHorizontalBar, getVerticalBar

Methods inherited from class org.eclipse.swt.widgets.Control

addControlListener, addDragDetectListener, addFocusListener, addGestureListener, addHelpListener, addKeyListener, addMenuDetectListener, addMouseListener, addTouchListener, addTraverseListener, computeSize, forceFocus, getAccessible, getBackground, getBackgroundImage, getBorderWidth, getBounds, getCursor, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getOrientation, getParent, getShell, getSize, getToolTipText, getTouchEnabled, getVisible, isEnabled, isFocusControl, isReparentable, isVisible, moveAbove, moveBelow, pack, pack, redraw, redraw, removeControlListener, removeDragDetectListener, removeFocusListener, removeGestureListener, removeHelpListener, removeKeyListener, removeMenuDetectListener, removeMouseListener, removeTouchListener, removeTraverseListener, requestLayout, setBackground, setBackgroundImage, setBounds, setCursor, setData, setEnabled, setForeground, setLayoutData, setLocation, setLocation, setMenu, setOrientation, setParent, setRedraw, setSize, setSize, setToolTipText, setTouchEnabled, setVisible, toControl, toControl, toDisplay, toDisplay, update

Methods inherited from class org.eclipse.swt.widgets.Widget

addDisposeListener, addListener, checkSubclass, checkWidget, dispose, getData, getData, getDisplay, getListeners, getStyle, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, reskin, setData, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

DateTime

public DateTime(Composite parent,
 int style)

Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.

The style value is either one of the style constants defined in class SWT which is applicable to instances of this class, or must be built by bitwise OR'ing together (that is, using the int "|" operator) two or more of those SWT style constants. The class description lists the style constants that are applicable to the class. Style bits are also inherited from superclasses.

Parameters:

parent - a composite control which will be the parent of the new instance (cannot be null)

style - the style of control to construct

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
• ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass

See Also:

• SWT.DATE
• SWT.TIME
• SWT.CALENDAR
• Widget.checkSubclass()
• Widget.getStyle()

Method Details

addSelectionListener

public void addSelectionListener(SelectionListener listener)

Adds the listener to the collection of listeners who will be notified when the control is selected by the user, by sending it one of the messages defined in the SelectionListener interface.

widgetSelected is called when the user changes the control's value. widgetDefaultSelected is not called.

Parameters:

listener - the listener which should be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

See Also:

• SelectionListener
• removeSelectionListener(org.eclipse.swt.events.SelectionListener)
• SelectionEvent

removeSelectionListener

public void removeSelectionListener(SelectionListener listener)

Removes the listener from the collection of listeners who will be notified when the control is selected by the user.

Parameters:

listener - the listener which should no longer be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

See Also:

• SelectionListener
• addSelectionListener(org.eclipse.swt.events.SelectionListener)

getHours

public int getHours()

Returns the receiver's hours.

Hours is an integer between 0 and 23.

Returns:

an integer between 0 and 23

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

getMinutes

public int getMinutes()

Returns the receiver's minutes.

Minutes is an integer between 0 and 59.

Returns:

an integer between 0 and 59

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

getSeconds

public int getSeconds()

Returns the receiver's seconds.

Seconds is an integer between 0 and 59.

Returns:

an integer between 0 and 59

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

getDay

public int getDay()

Returns the receiver's date, or day of the month.

The first day of the month is 1, and the last day depends on the month and year.

Returns:

a positive integer beginning with 1

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

getMonth

public int getMonth()

Returns the receiver's month.

The first month of the year is 0, and the last month is 11.

Returns:

an integer between 0 and 11

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

getYear

public int getYear()

Returns the receiver's year.

The first year is 1752 and the last year is 9999.

Returns:

an integer between 1752 and 9999

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

getMinimum

public Date getMinimum()

Returns the minimum value which the receiver will allow or null if no minimum limit is applied.

Returns:

the minimum value

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

Since:

3.2

getMaximum

public Date getMaximum()

Returns the maximum value which the receiver will allow or null if no maximum limit is applied.

Returns:

the maximum value

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

Since:

3.2

setHours

public void setHours(int hours)

Sets the receiver's hours.

Hours is an integer between 0 and 23.

Parameters:

hours - an integer between 0 and 23

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

setMinutes

public void setMinutes(int minutes)

Sets the receiver's minutes.

Minutes is an integer between 0 and 59.

Parameters:

minutes - an integer between 0 and 59

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

setSeconds

public void setSeconds(int seconds)

Sets the receiver's seconds.

Seconds is an integer between 0 and 59.

Parameters:

seconds - an integer between 0 and 59

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

setDay

public void setDay(int day)

Sets the receiver's date, or day of the month, to the specified day.

The first day of the month is 1, and the last day depends on the month and year.

Parameters:

day - a positive integer beginning with 1

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

setMonth

public void setMonth(int month)

Sets the receiver's month.

The first month of the year is 0, and the last month is 11.

Parameters:

month - an integer between 0 and 11

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

setYear

public void setYear(int year)

Sets the receiver's year.

The first year is 1752 and the last year is 9999.

Parameters:

year - an integer between 1752 and 9999

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

setMinimum

public void setMinimum(Date date)

Sets the minimum value. If this value is greater than or equal to the maximum, the value is ignored.

Parameters:

date - the new minimum

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

Since:

3.2

setMaximum

public void setMaximum(Date date)

Sets the maximum value. If this value is lower than or equal to the minimum, the value is ignored.

Parameters:

date - the new maximum

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

Since:

3.2

setDate

public void setDate(int year,
 int month,
 int day)

Sets the receiver's year, month, and day in a single operation.

This is the recommended way to set the date, because setting the year, month, and day separately may result in invalid intermediate dates.

Parameters:

year - an integer between 1752 and 9999

month - an integer between 0 and 11

day - a positive integer beginning with 1

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

Since:

1.2

setTime

public void setTime(int hours,
 int minutes,
 int seconds)

Sets the receiver's hours, minutes, and seconds in a single operation.

Parameters:

hours - an integer between 0 and 23

minutes - an integer between 0 and 59

seconds - an integer between 0 and 59

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

Since:

1.2

setFont

public void setFont(Font font)

Description copied from class: Control

Sets the font that the receiver will use to paint textual information to the font specified by the argument, or to the default font for that kind of control if the argument is null.

Overrides:

setFont in class Control

Parameters:

font - the new font (or null)

getAdapter

public <T> T getAdapter(Class<T> adapter)

Description copied from class: Widget

Implementation of the Adaptable interface.

IMPORTANT: This method is not part of the RWT public API. It is marked public only so that it can be shared within the packages provided by RWT. It should never be accessed from application code.

Specified by:

getAdapter in interface Adaptable

Overrides:

getAdapter in class Composite

Parameters:

adapter - the lookup class

Returns:

an object that can be cast to the given class or null if there is no adapter associated with the given class.

computeSize

public Point computeSize(int wHint,
 int hHint,
 boolean changed)

Description copied from class: Control

Returns the preferred size of the receiver.

The preferred size of a control is the size that it would best be displayed at. The width hint and height hint arguments allow the caller to ask a control questions such as "Given a particular width, how high does the control need to be to show all of the contents?" To indicate that the caller does not wish to constrain a particular dimension, the constant SWT.DEFAULT is passed for the hint.

If the changed flag is true, it indicates that the receiver's contents have changed, therefore any caches that a layout manager containing the control may have been keeping need to be flushed. When the control is resized, the changed flag will be false, so layout manager caches can be retained.

Overrides:

computeSize in class Composite

Parameters:

wHint - the width hint (can be SWT.DEFAULT)

hHint - the height hint (can be SWT.DEFAULT)

changed - true if the control's contents have changed, and false otherwise

Returns:

the preferred size of the control.

See Also:

• Layout
• Control.getBorderWidth()
• Control.getBounds()
• Control.getSize()
• Control.pack(boolean)
• "computeTrim, getClientArea for controls that implement them"

setBounds

public void setBounds(Rectangle bounds)

Description copied from class: Control

Sets the receiver's size and location to the rectangular area specified by the argument. The x and y fields of the rectangle are relative to the receiver's parent (or its display if its parent is null).

Note: Attempting to set the width or height of the receiver to a negative number will cause that value to be set to zero instead.

Overrides:

setBounds in class Control

Parameters:

bounds - the new bounds for the receiver