org.vishia.gral.swt

Class SwtLabel

java.lang.Object

org.vishia.gral.base.GralWidget.ImplAccess

org.vishia.gral.widget.GralLabel.GraphicImplAccess

org.vishia.gral.swt.SwtLabel

All Implemented Interfaces:

GralWidgImplAccess_ifc

public class SwtLabel
extends GralLabel.GraphicImplAccess

Field Summary

Fields

Modifier and Type	Field and Description
private Font	fontSwt
protected SwtTransparentLabel	labelSwt
private SwtWidgetHelper	swtWidgHelper It contains the association to the swt widget (Control) and the SwtMng and implements some methods of GralWidgImplAccess_ifc which are delegate from this.
static java.lang.String	version Version, history and license.

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

Constructor Summary

Constructors

Constructor and Description
SwtLabel(GralLabel widgg, SwtMng swtMng)

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.widget.GralLabel.GraphicImplAccess

origin

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

version

public static final java.lang.String version

Version, history and license.

• 2023-02-11 Hartmut bugfix, bug on negative position values (from left/bottom)
• 2013..22 some changes see git repository.
• 2013-12-23 Hartmut new: Uses the new concept of widget implementation.

Copyright/Copyleft: For this source the LGPL Lesser General Public License, published by the Free Software Foundation is valid. It means:

1. You can use this source without any restriction for any desired purpose.
2. You can redistribute copies of this source to everybody.
3. Every user of this source, also the user of redistribute copies with or without payment, must accept this license for further using.
4. But the LPGL is not appropriate for a whole software product, if this source is only a part of them. It means, the user must publish this part of source, but doesn't need to publish the whole source of the own product.
5. You can study and modify (improve) this source for own using or for redistribution, but you have to license the modified sources likewise under this LGPL Lesser General Public License. You mustn't delete this Copyright/Copyleft inscription in this source file.

If you intent to use this source without publishing its usage, you can get a second license subscribing a special contract with the author.

See Also:

Constant Field Values

swtWidgHelper

private final SwtWidgetHelper swtWidgHelper

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

labelSwt

protected SwtTransparentLabel labelSwt

fontSwt

private Font fontSwt

Constructor Detail

SwtLabel

SwtLabel(GralLabel widgg,
         SwtMng swtMng)

Method Detail

getPixelPositionSize

public GralRectangle getPixelPositionSize()

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

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

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.

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.

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.