org.vishia.gral.swt

Class SwtTransparentLabel

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.vishia.gral.swt.SwtTransparentLabel

All Implemented Interfaces:

org.eclipse.swt.graphics.Drawable

public class SwtTransparentLabel
extends org.eclipse.swt.widgets.Canvas

This class supports drawing a Label without background. The Problem is: A swt.Color doesn't support the transparent/opaque/alpha property of colors. Therefore setBackground(Color) with an non-opaque color can't be used in SWT (in the current version). But a swt.widgets.Composite support drawing without background. This class isn't offer in the Gral interface. It is used for Prompt labels which overlay an input field.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) org.eclipse.swt.graphics.Font	font
protected org.eclipse.swt.events.PaintListener	paintListener The listener for paint events.
(package private) java.lang.String	text

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

handle

Constructor Summary

Constructors

Constructor and Description
SwtTransparentLabel(org.eclipse.swt.widgets.Composite parent, int style)

Method Summary

Modifier and Type	Method and Description
java.lang.String	getText()
void	setBackground(org.eclipse.swt.graphics.Color color)
void	setFont(org.eclipse.swt.graphics.Font font)
void	setText(java.lang.String string)

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

drawBackground, getCaret, getIME, scroll, setCaret, 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, 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, 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

Field Detail

text

java.lang.String text

font

org.eclipse.swt.graphics.Font font

paintListener

protected org.eclipse.swt.events.PaintListener paintListener

The listener for paint events. It is called whenever the window is shown newly.

Constructor Detail

SwtTransparentLabel

public SwtTransparentLabel(org.eclipse.swt.widgets.Composite parent,
                           int style)

Method Detail

setText

public void setText(java.lang.String string)

setFont

public void setFont(org.eclipse.swt.graphics.Font font)

Overrides:

setFont in class org.eclipse.swt.widgets.Canvas

setBackground

public void setBackground(org.eclipse.swt.graphics.Color color)

Overrides:

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

getText

public java.lang.String getText()