org.eclipse.nebula.widgets.led

Class LED

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.Canvas

org.eclipse.nebula.widgets.led.BaseLED

org.eclipse.nebula.widgets.led.LED

All Implemented Interfaces:

org.eclipse.swt.graphics.Drawable

public class LED
extends BaseLED

Instances of this class represent a non-selectable user interface object that displays a character like it was displayed on a LED screen.

Styles:

SWT.BORDER

SWT.ICON if the user wants to add a dot

Events:

(none)

Field Summary

Fields inherited from class org.eclipse.nebula.widgets.led.BaseLED

DEFAULT_HEIGHT, DOT_DIAMETER, gc, idleColor, selectedColor, THIN_DEFAULT_WIDTH

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

handle

Constructor Summary

Constructors

Constructor and Description
LED(org.eclipse.swt.widgets.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 and Description
org.eclipse.swt.graphics.Point	computeSize(int wHint, int hHint, boolean changed)
boolean	isShowDot() Returns the flag which indicates if the dot pixel in the right bottom corner of the widget is switched on
protected void	paintInternal() Paint the widget
void	setCharacter(LEDCharacter character) Sets the character to display
void	setShowDot(boolean showDot) Sets the flag allowing the widget to display a dot in the right bottom corner of the widget

Methods inherited from class org.eclipse.nebula.widgets.led.BaseLED

getIdleColor, getSelectedColor, setIdleColor, setSelectedColor

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

drawBackground, getCaret, getIME, scroll, setCaret, setFont, setIME

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

changed, checkSubclass, drawBackground, 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, getScrollbarsMode, getVerticalBar

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

addControlListener, addDragDetectListener, addFocusListener, addGestureListener, addHelpListener, addKeyListener, addMenuDetectListener, addMouseListener, addMouseMoveListener, addMouseTrackListener, addMouseWheelListener, addPaintListener, addTouchListener, addTraverseListener, computeSize, dragDetect, dragDetect, forceFocus, getAccessible, getBackground, getBackgroundImage, getBorderWidth, getBounds, getCursor, getDragDetect, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getOrientation, getParent, getRegion, getShell, getSize, getTextDirection, getToolTipText, getTouchEnabled, getVisible, internal_dispose_GC, internal_new_GC, isEnabled, isFocusControl, isReparentable, isVisible, moveAbove, moveBelow, pack, pack, print, redraw, redraw, removeControlListener, removeDragDetectListener, removeFocusListener, removeGestureListener, removeHelpListener, removeKeyListener, removeMenuDetectListener, removeMouseListener, removeMouseMoveListener, removeMouseTrackListener, removeMouseWheelListener, removePaintListener, removeTouchListener, removeTraverseListener, requestLayout, setBackground, setBackgroundImage, setBounds, setBounds, setCapture, setCursor, setDragDetect, setEnabled, setForeground, setLayoutData, setLocation, setLocation, setMenu, setOrientation, setParent, setRedraw, setRegion, setSize, setSize, setTextDirection, setToolTipText, setTouchEnabled, setVisible, toControl, toControl, toDisplay, toDisplay, traverse, traverse, traverse, update

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

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.swt.graphics.Drawable

isAutoScalable

Constructor Detail

LED

public LED(org.eclipse.swt.widgets.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:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

org.eclipse.swt.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

Method Detail

paintInternal

protected void paintInternal()

Description copied from class: BaseLED

Paint the widget

Specified by:

paintInternal in class BaseLED

computeSize

public org.eclipse.swt.graphics.Point computeSize(int wHint,
                                                  int hHint,
                                                  boolean changed)

Overrides:

computeSize in class org.eclipse.swt.widgets.Control

See Also:

Control.computeSize(int, int, boolean)

isShowDot

public boolean isShowDot()

Returns the flag which indicates if the dot pixel in the right bottom corner of the widget is switched on

Returns:

true if the dot is displayed, false otherwise

Throws:

org.eclipse.swt.SWTException -

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

setShowDot

public void setShowDot(boolean showDot)

Sets the flag allowing the widget to display a dot in the right bottom corner of the widget

Parameters:

showDot - the new value

Throws:

java.lang.IllegalArgumentException -

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

setCharacter

public void setCharacter(LEDCharacter character)

Sets the character to display

Parameters:

character - the character to display

Throws:

java.lang.IllegalArgumentException -

• ERROR_INVALID_ARGUMENT - if the argument has been disposed
• ERROR_NULL_ARGUMENT - if the argument is null

org.eclipse.swt.SWTException -

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