org.vishia.gral.swt

Class SwtButton

java.lang.Object

org.vishia.gral.base.GralWidget.ImplAccess

org.vishia.gral.base.GralButton.GraphicImplAccess

org.vishia.gral.swt.SwtButton

All Implemented Interfaces:

GralWidgImplAccess_ifc

public class SwtButton
extends GralButton.GraphicImplAccess

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	SwtButton.KeyListener
private class	SwtButton.SwtButtonImpl

Field Summary

Fields

Modifier and Type	Field and Description
(package private) Color	black
(package private) Font	fontText
(package private) SwtGralMouseListener.MouseListenerGralAction	mouseListener
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 int	version Version, history and license.
(package private) Color	white
(package private) Canvas	widgetSwt

Fields inherited from class org.vishia.gral.base.GralButton.GraphicImplAccess

colorgback, colorgline, mouseWidgetAction, sButtonText, widgg

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

Constructor Summary

Constructors

Constructor and Description
SwtButton(GralButton widgg, SwtMng mng)

Method Summary

Modifier and Type	Method and Description
GralRectangle	getPixelPositionSize()
java.lang.Object	getWidgetImplementation() Returns the implementation class of the widget.
protected void	paintRoutine(PaintEvent e, Canvas canvas)
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.
(package private) void	setBoundsGraphic(GralPos pos, SwtMng mng)
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 vible or not.
void	updateValuesForAction() This operation should be called before any action is invoked in the user space.

Methods inherited from class org.vishia.gral.base.GralButton.GraphicImplAccess

isPressed, paint1, prepareWidget

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 int version

Version, history and license.

• 2013-12-22 Hartmut chg: Now GralButton uses the new concept of instantiation: It is not the super class of the implementation class. But it provides GralButton.GraphicImplAccess as the super class.
• 2012-03-09 Hartmut new setFocus on press button
• 2012-03-09 Hartmut new 3-state-Button.
• 2012-03-09 Hartmut improved: appearance of the buttons.
• All other changes in 2010, 2011

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.

widgetSwt

Canvas widgetSwt

black

final Color black

white

final Color white

fontText

final Font fontText

mouseListener

final SwtGralMouseListener.MouseListenerGralAction mouseListener

Constructor Detail

SwtButton

SwtButton(GralButton widgg,
          SwtMng mng)

Method Detail

getPixelPositionSize

public GralRectangle getPixelPositionSize()

setBoundsGraphic

void setBoundsGraphic(GralPos pos,
                      SwtMng mng)

removeWidgetImplementation

public void removeWidgetImplementation()

Description copied from interface: GralWidgImplAccess_ifc

Removes the graphical widget in the graphic.

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.

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)

Sets the implementation widget vible or not.

Parameters:

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

See Also:

GralWidgImplAccess_ifc.setVisibleGThread(boolean)

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

paintRoutine

protected void paintRoutine(PaintEvent e,
                            Canvas canvas)

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.