org.vishia.gral.swt

Class SwtWidgetHelper

java.lang.Object

org.vishia.gral.swt.SwtWidgetHelper

All Implemented Interfaces:

GralWidgetImpl_ifc

public class SwtWidgetHelper
extends java.lang.Object
implements GralWidgetImpl_ifc

This class is a wrapper around any widget which is a org.eclipse.swt.widgets.Control.
The basically important operation with more content is getPixelPositionSize(Control). The static methods of this class are called in some situations, where same functionality is need in some classes.

Field Summary

Fields

Modifier and Type	Field and Description
SwtMng	mng
static int	version Version and history 2011-11-18 Hartmut chg: setFocusOfTabSwt(Control) is the implementation of all org.vishia.gral.base.GralWidget#setFocusGThread() implementations.
Control	widgetSwt

Fields inherited from interface org.vishia.gral.impl_ifc.GralWidgetImpl_ifc

sVersion

Constructor Summary

Constructors

Constructor and Description
SwtWidgetHelper(Control widgetSwt, SwtMng mng)

Method Summary

Modifier and Type	Method and Description
static GralColor	getColor(Color swtColor)
java.lang.Object	getImplWidget() This returns the graphic element of the implementation.
GralRectangle	getPixelPositionSize() Calculates the absolute position of the widget on the screen.
static GralRectangle	getPixelPositionSize(Control widg) Deprecated. this routine is implemented in SwtWidgetHelper which can be used for all widgets (new concept).
void	removeWidgetImplementation()
void	setBoundsPixel(int x, int y, int dx, int dy)
boolean	setFocusGThread()
static boolean	setFocusOfTabSwt(Control control) Sets the correct TabItem if any widget at this TabItem is focused.
void	setVisibleGThread(boolean bVisible) Sets the implementation widget vible or not.
void	specifyContextMenu(GralMenu menu)
void	swtUpdateRedraw()

Methods inherited from class java.lang.Object

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

Field Detail

version

public static final int version

Version and history

• 2011-11-18 Hartmut chg: setFocusOfTabSwt(Control) is the implementation of all org.vishia.gral.base.GralWidget#setFocusGThread() implementations. It regards that a tab in a TabFolder should be selected if any widget inside the tab-panel is focused. Used extensive in JavaCommander.

See Also:

Constant Field Values

mng

public final SwtMng mng

widgetSwt

public Control widgetSwt

Constructor Detail

SwtWidgetHelper

public SwtWidgetHelper(Control widgetSwt,
                       SwtMng mng)

Method Detail

getImplWidget

public java.lang.Object getImplWidget()

Description copied from interface: GralWidgetImpl_ifc

This returns the graphic element of the implementation. The usage of this interface should be done also in the implementation level, so a cast to the expected graphic element can be done.

Specified by:

getImplWidget in interface GralWidgetImpl_ifc

Returns:

either a basic graphic widget or the panel implementation on comprehensive widgets.

getColor

public static GralColor getColor(Color swtColor)

setFocusOfTabSwt

public static boolean setFocusOfTabSwt(Control control)

Sets the correct TabItem if any widget at this TabItem is focused. That is not done by swt graphic on Control.setFocus().

Parameters:

control -

swtUpdateRedraw

public void swtUpdateRedraw()

setFocusGThread

public boolean setFocusGThread()

setVisibleGThread

public void setVisibleGThread(boolean bVisible)

Sets the implementation widget vible or not.

See Also:

GralWidgImplAccess_ifc.setVisibleGThread(boolean)

removeWidgetImplementation

public void removeWidgetImplementation()

setBoundsPixel

public void setBoundsPixel(int x,
                           int y,
                           int dx,
                           int dy)

getPixelPositionSize

public GralRectangle getPixelPositionSize()

Calculates the absolute position of the widget on the screen. It searches the whole window Shell and calculates from there through all composites.

Returns:

absolute Position and size on the screen.

getPixelPositionSize

@Deprecated
public static GralRectangle getPixelPositionSize(Control widg)

Deprecated. this routine is implemented in SwtWidgetHelper which can be used for all widgets (new concept).

Parameters:

widg -

Returns:

specifyContextMenu

public void specifyContextMenu(GralMenu menu)

Specified by:

specifyContextMenu in interface GralWidgetImpl_ifc