org.vishia.gral.swt

Class SwtSlider

java.lang.Object

org.vishia.gral.base.GralWidget.ImplAccess

org.vishia.gral.base.GralSlider._GraphicImplAccess_

org.vishia.gral.swt.SwtSlider

All Implemented Interfaces:

GralWidgImplAccess_ifc

public class SwtSlider
extends GralSlider._GraphicImplAccess_

Field Summary

Fields

Modifier and Type	Field and Description
private SwtWidgetHelper	swtWdgW It contains the association to the swt widget (Control) and the SwtMng and implements some methods of GralWidgImplAccess_ifc which are delegate from this.

Fields inherited from class org.vishia.gral.base.GralWidget.ImplAccess

bRedrawOnlyDynamics, chgBitsDerived, chgColorBack, chgColorLine, chgColorText, chgCurrTab, chgEditable, chgFloat, chgFocus, chgFont, chgIntg, chgInvisible, chgObjects, chgPos, chgText, chgVisible, chgVisibleInfo, mngImpl, pixBounds, wdgimpl, widgg

Fields inherited from interface org.vishia.gral.base.GralWidgImplAccess_ifc

version

Constructor Summary

Constructors

Constructor and Description
SwtSlider(GralSlider widg, SwtMng mng)

Method Summary

Modifier and Type	Method and Description
GralRectangle	getPixelPositionSize()
java.lang.Object	getWidgetImplementation() Returns the implementation class of the widget.
void	redrawGthread() This method should be implemented in all Widget implementations of the adapter for the underlying graphic system.
void	removeWidgetImplementation() Removes the graphical widget in the graphic.
void	setBoundsPixel(int x, int y, int dx, int dy) Set the bounds of the implementation widget.
boolean	setFocusGThread() Sets the focus to the widget.
void	setVisibleGThread(boolean bVisible) Sets the implementation widget(s) visible state.
void	updateValuesForAction() This operation should be called before any action is invoked in the user space.

Methods inherited from class org.vishia.gral.base.GralWidget.ImplAccess

acknChanged, actionShow, dyda, getActionChange, getChanged, gralMng, gralWidgetFromImplData, redrawOnlyDynamics, setDragEnable, setDropEnable, setPosBounds, setTextChanged, setVisibleState, XXXfocusGained

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.vishia.gral.base.GralWidgImplAccess_ifc

setPosBounds

Field Detail

swtWdgW

private final SwtWidgetHelper swtWdgW

It contains the association to the swt widget (Control) and the SwtMng and implements some methods of GralWidgImplAccess_ifc which are delegate from this.

Constructor Detail

SwtSlider

public SwtSlider(GralSlider widg,
                 SwtMng mng)

Method Detail

setFocusGThread

public boolean setFocusGThread()

Description copied from interface: GralWidgImplAccess_ifc

Sets the focus to the widget. See GralMng_ifc#setFocus(GralWidget).

Returns:

true if it has the focus after this operation. false on any error.

setVisibleGThread

public void setVisibleGThread(boolean bVisible)

Description copied from interface: GralWidgImplAccess_ifc

Sets the implementation widget(s) visible state. The widgets are really invisible, or they are visible in principle, but they can be covered by other windows or clipping. This method should set the GralWidgetBase.bVisibleState too. Therewith it is able to quest GralWidget.isVisible() in any thread.

Parameters:

bVisible - true then the widget should be visible, false it is set to invisible.

removeWidgetImplementation

public void removeWidgetImplementation()

Description copied from interface: GralWidgImplAccess_ifc

Removes the graphical widget in the graphic.

redrawGthread

public void redrawGthread()

Description copied from interface: GralWidgImplAccess_ifc

This method should be implemented in all Widget implementations of the adapter for the underlying graphic system.
Implementation hints: In SWT it should call redraw(). In AWT this is named 'repaint()'-
It is possible that the widget consists of more as one graphical widget, then all of it should be redrawn. It is possible that some data are set in another thread, they should be applied to the widgets firstly. It is possible that the widget is removed though a repaintGthread-order is pending from the time before deleting, for example if the graphic layout is changed.

See #repaintRequ

getWidgetImplementation

public java.lang.Object getWidgetImplementation()

Description copied from interface: GralWidgImplAccess_ifc

Returns the implementation class of the widget. If the widget has more as one implementation widgets, this method returns one of the widgets, usual the first important one respectively that widget which represents the implementation layer. A widget of the implementation layer is a SWT.control or a Component.

If more as one widget are part of the GralWidget, use the special GralWidget._wdgImpl class which should contain the references to that implementation widgets.

Specified by:

getWidgetImplementation in interface GralWidgImplAccess_ifc

Overrides:

getWidgetImplementation in class GralWidget.ImplAccess

setBoundsPixel

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

Description copied from interface: GralWidgImplAccess_ifc

Set the bounds of the implementation widget. This is called especially on resize from the panel, but also on creation for comprehensive widgets. If the widget is more comprehensive, consist of more basic widgets, then this operation should care about the parts of the widget.

getPixelPositionSize

public GralRectangle getPixelPositionSize()

updateValuesForAction

public void updateValuesForAction()

Description copied from interface: GralWidgImplAccess_ifc

This operation should be called before any action is invoked in the user space. It should update all values from the implementation widget to the GralWidget to enable getting it in the action.