org.vishia.gral.swt

Class SwtPanel

java.lang.Object

org.vishia.gral.base.GralWidget.ImplAccess

org.vishia.gral.base.GralPanelContent.ImplAccess

org.vishia.gral.swt.SwtPanel

All Implemented Interfaces:

GralWidgImpl_ifc

Direct Known Subclasses:

SwtCanvasStorePanel

public class SwtPanel
extends GralPanelContent.ImplAccess

Field Summary

Fields

Modifier and Type	Field and Description
org.eclipse.swt.widgets.TabItem	itsTabSwt The associated tab in a TabFolder if this panel is the main panel of the TabItem, or null if it isn't a main panel of a tab in a tabbed panel.
org.eclipse.swt.widgets.Composite	panelComposite It is either a Composite or a SwtCanvas
protected org.eclipse.swt.events.ControlListener	resizeItemListener
static int	version Version history: 2011-11-19 Hartmut chg: itsTabSwt with correct type moved from GralPanelContent.

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

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

Constructor Summary

Constructors

Modifier	Constructor and Description
private	SwtPanel(GralPanelContent panelg)
	SwtPanel(GralPanelContent panelg, org.eclipse.swt.widgets.Composite panelSwt) Constructs a panel

Method Summary

Modifier and Type	Method and Description
GralRectangle	getPixelPositionSize() Returns the absolute position of this panel on screen and its size.
GralRectangle	getPixelSize() Returns the size of this panel in pixel.
java.lang.Object	getWidgetImplementation() Returns the implementation class of the widget.
boolean	remove()
void	removeWidgetImplementation() Removes the graphical widget in the graphic.
void	repaintGthread() This method should be implemented in all Widget implementations of the adapter for the underlying graphic system.
void	setBoundsPixel(int x, int y, int dx, int dy)
boolean	setFocusGThread() Sets the focus to the widget.
void	setVisibleGThread(boolean bVisible) Sets the implementation widget(s) visible state.

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

gralPanel

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

acknChanged, actionShow, dyda, getActionChange, getChanged, gralWidgetFromImplData, setDragEnable, setDropEnable, setFocused, setTextChanged, setVisibleState, XXXfocusGained

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 history:

• 2011-11-19 Hartmut chg: itsTabSwt with correct type moved from GralPanelContent.
• 2011-09-25 Hartmut creation: Common class for all Swt implementations of Panels. This class can implement the abstract methods from GralPanelContent for the implementation in a common form.

See Also:

Constant Field Values

panelComposite

public org.eclipse.swt.widgets.Composite panelComposite

It is either a Composite or a SwtCanvas

itsTabSwt

public org.eclipse.swt.widgets.TabItem itsTabSwt

The associated tab in a TabFolder if this panel is the main panel of the TabItem, or null if it isn't a main panel of a tab in a tabbed panel.

Note: can't be final because it may be unknown on calling constructor. The property whether a panel is a tab-panel can't be presented with an extra subclass, because this class is the subclass of several Swt panel types. Use the aggregation principle instead multi-inheritance.

resizeItemListener

protected org.eclipse.swt.events.ControlListener resizeItemListener

Constructor Detail

SwtPanel

private SwtPanel(GralPanelContent panelg)

SwtPanel

public SwtPanel(GralPanelContent panelg,
                org.eclipse.swt.widgets.Composite panelSwt)

Constructs a panel

Parameters:

name - of panel.

mng - The widget manager

panelSwt - may be null, then the GralPanelContent#panelComposite should be set after construction of a derived class.

Method Detail

getPixelPositionSize

public GralRectangle getPixelPositionSize()

Description copied from class: GralPanelContent.ImplAccess

Returns the absolute position of this panel on screen and its size. If it is a main window, the useable area of the window without title and menu bar is returned.

Specified by:

getPixelPositionSize in interface GralWidgImpl_ifc

Specified by:

getPixelPositionSize in class GralPanelContent.ImplAccess

getPixelSize

public GralRectangle getPixelSize()

Description copied from class: GralPanelContent.ImplAccess

Returns the size of this panel in pixel.

Specified by:

getPixelSize in class GralPanelContent.ImplAccess

Returns:

the x and y is 0, the dy and dy is the size.

setBoundsPixel

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

repaintGthread

public void repaintGthread()

Description copied from interface: GralWidgImpl_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().
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

removeWidgetImplementation

public void removeWidgetImplementation()

Description copied from interface: GralWidgImpl_ifc

Removes the graphical widget in the graphic.

remove

public boolean remove()

setFocusGThread

public boolean setFocusGThread()

Description copied from interface: GralWidgImpl_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: GralWidgImpl_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 GralWidget.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.

getWidgetImplementation

public java.lang.Object getWidgetImplementation()

Description copied from interface: GralWidgImpl_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.