XmSelectionBox(X3mot)

XmSelectionBox -- the SelectionBox widget class

Synopsis

#include <Xm/SelectioB.h>

Description

SelectionBox is a general dialog widget that allows the user to select one item from a list. By default a SelectionBox includes the following:

A scrolling list of alternatives
An editable text field for the selected alternative
Labels for the list and text field
Three or four buttons

The default button labels are ``OK'', ``Cancel'', and ``Help''. By default an ``Apply'' button is also created; if the parent of the SelectionBox is a DialogShell it is managed, and otherwise it is unmanaged. Additional children may be added to the SelectionBox after creation. The first child is used as a work area. The value of XmNchildPlacement determines if the work area is placed above or below the Text area, or above or below the List area. Additional children are laid out in the following manner:

Menubar -- The first menu bar child is placed at the top of the window.
Buttons -- All XmPushButton widgets or gadgets, and their subclasses are placed after the OK button in the order of their creation.
The layout of additional children which are not in the above categories is undefined.

The user can select an item in two ways: by scrolling through the list and selecting the desired item or by entering the item name directly into the text edit area. Selecting an item from the list causes that item name to appear in the selection text edit area.

The user may select a new item as many times as desired. The item is not actually selected until the user presses the OK PushButton.

The default value for the XmBulletinBoard resource XmNcancelButton is the Cancel button unless XmNdialogType is XmDIALOG_COMMAND, when the default is NULL. The default value for the XmBulletinBoard resource XmNdefaultButton is the OK button unless XmNdialogType is XmDIALOG_COMMAND, when the default is NULL.

For SelectionBox and its subclasses, the default value for XmNinitialFocus is the text edit area.

The user can specify resources in a resource file for the automatically created widgets and gadgets of SelectionBox. The following list identifies the names of these widgets (or gadgets) and the associated SelectionBox areas.

List Items Label -- ``Items''
List Items -- ``ItemsList''
Selection Label -- ``Selection''
Selection Text -- ``Text''
Selection Separator -- ``Separator''

Classes

SelectionBox inherits behavior and resources from Core, Composite, Constraint, XmManager, and XmBulletinBoard classes.

The class pointer is xmSelectionBoxWidgetClass.

The class name is XmSelectionBox.

New resources

The following table defines a set of widget resources used by the programmer to specify data. The programmer can also set the resource values for the inherited classes to set attributes for this widget. To reference a resource by name or by class in a .Xdefaults file, remove the ``XmN'' or ``XmC'' prefix and use the remaining letters. To specify one of the defined values for a resource in a .Xdefaults file, remove the ``Xm'' prefix and use the remaining letters (in either lowercase or uppercase, but include any underscores between words). The codes in the access column indicate if the given resource can be set at creation time (C), set by using XtSetValues (S), retrieved by using XtGetValues (G), or is not applicable (N/A).

XmSelectionBox resource set

Name Class Type Default Access

XmNapplyCallback XmCCallback XtCallbackList NULL C

XmNapplyLabelString XmCApplyLabelString XmString dynamic CSG

XmNcancelCallback XmCCallback XtCallbackList NULL C

XmNcancelLabelString XmCCancelLabelString XmString dynamic CSG

XmNchildPlacement XmCChildPlacement unsigned char XmPLACE_ABOVE_SELECTION

CSG

XmNdialogType XmCDialogType unsigned char dynamic CG

XmNhelpLabelString XmCHelpLabelString XmString dynamic CSG

XmNlistItemCount XmCItemCount int 0 CSG

XmNlistItems XmCItems XmStringTable NULL CSG

XmNlistLabelString XmCListLabelString XmString dynamic CSG

XmNlistVisibleItemCount XmCVisibleItemCount int dynamic CSG

XmNminimizeButtons XmCMinimizeButtons Boolean False CSG

XmNmustMatch XmCMustMatch Boolean False CSG

XmNnoMatchCallback XmCCallback XtCallbackList NULL C

XmNokCallback XmCCallback XtCallbackList NULL C

XmNokLabelString XmCOkLabelString XmString dynamic CSG

XmNselectionLabelString XmCSelectionLabelString XmString dynamic CSG

XmNtextAccelerators XmCTextAccelerators XtAccelerators default C

XmNtextColumns XmCColumns short dynamic CSG

XmNtextString XmCTextString XmString "" CSG

Name	Class	Type	Default	Access
XmNapplyCallback	XmCCallback	XtCallbackList	NULL	C
XmNapplyLabelString	XmCApplyLabelString	XmString	dynamic	CSG
XmNcancelCallback	XmCCallback	XtCallbackList	NULL	C
XmNcancelLabelString	XmCCancelLabelString	XmString	dynamic	CSG
XmNchildPlacement	XmCChildPlacement	unsigned	char	XmPLACE_ABOVE_SELECTION
CSG
XmNdialogType	XmCDialogType	unsigned char	dynamic	CG
XmNhelpLabelString	XmCHelpLabelString	XmString	dynamic	CSG
XmNlistItemCount	XmCItemCount	int	0	CSG
XmNlistItems	XmCItems	XmStringTable	NULL	CSG
XmNlistLabelString	XmCListLabelString	XmString	dynamic	CSG
XmNlistVisibleItemCount	XmCVisibleItemCount	int	dynamic	CSG
XmNminimizeButtons	XmCMinimizeButtons	Boolean	False	CSG
XmNmustMatch	XmCMustMatch	Boolean	False	CSG
XmNnoMatchCallback	XmCCallback	XtCallbackList	NULL	C
XmNokCallback	XmCCallback	XtCallbackList	NULL	C
XmNokLabelString	XmCOkLabelString	XmString	dynamic	CSG
XmNselectionLabelString	XmCSelectionLabelString	XmString	dynamic	CSG
XmNtextAccelerators	XmCTextAccelerators	XtAccelerators	default	C
XmNtextColumns	XmCColumns	short	dynamic	CSG
XmNtextString	XmCTextString	XmString	""	CSG

XmNapplyCallback

Specifies the list of callbacks called when the user activates the Apply button. The callback reason is XmCR_APPLY.

XmNapplyLabelString

Specifies the string label for the Apply button. The default for this resource depends on the locale. In the C locale the default is ``Apply''.

XmNcancelCallback

Specifies the list of callbacks called when the user activates the Cancel button. The callback reason is XmCR_CANCEL.

XmNcancelLabelString

Specifies the string label for the Cancel button. The default for this resource depends on the locale. In the C locale the default is ``Cancel''.

XmNchildPlacement

Specifies the placement of the work area child. The possible values are:

XmPLACE_ABOVE_SELECTION -- places the work area child above the Text area
XmPLACE_BELOW_SELECTION -- places the work area child below the Text area
XmPLACE_TOP -- places the work area child above the List area, and below a menubar, if one is present

XmNdialogType

Determines the set of SelectionBox children widgets that are created and managed at initialization. The following are possible values:

XmDIALOG_PROMPT -- all standard children except the list and list label are created, and all except the Apply button are managed
XmDIALOG_COMMAND -- only the list, the selection label, and the text field are created and managed
XmDIALOG_SELECTION -- all standard children are created and managed
XmDIALOG_FILE_SELECTION -- all standard children are created and managed
XmDIALOG_WORK_AREA -- all standard children are created, and all except the Apply button are managed

If the parent of the SelectionBox is a DialogShell, the default is XmDIALOG_SELECTION; otherwise, the default is XmDIALOG_WORK_AREA. XmCreatePromptDialog and XmCreateSelectionDialog set and append this resource to the creation arglist supplied by the application. This resource cannot be modified after creation.

XmNhelpLabelString

Specifies the string label for the Help button. The default for this resource depends on the locale. In the C locale the default is ``Help''.

XmNlistItems

Specifies the items in the SelectionBox list. XtGetValues for this resource returns the list items themselves, not a copy of the list items. The application must not free the returned items.

XmNlistItemCount

Specifies the number of items in the SelectionBox list. The value must not be negative.

XmNlistLabelString

Specifies the string label to appear above the SelectionBox list containing the selection items. The default for this resource depends on the locale. In the C locale the default is ``Items'' unless XmNdialogType is XmDIALOG_PROMPT; in that case the default is NULL.

XmNlistVisibleItemCount

Specifies the number of items displayed in the SelectionBox list. The value must be greater than 0 unless XmNdialogType is XmDIALOG_PROMPT; in that case the value is always 0. The default is dynamic based on the height of the list.

XmNminimizeButtons

Sets the buttons to the width of the widest button and height of the tallest button if False. If True, button width and height are not modified.

XmNmustMatch

Specifies whether the selection widget should check if the user's selection in the text edit field has an exact match in the SelectionBox list when the OK button is activated. If the selection does not have an exact match, and XmNmustMatch is True, the XmNnoMatchCallback callbacks are called. If the selection does have an exact match or if XmNmustMatch is False, XmNokCallback callbacks are called.

XmNnoMatchCallback

Specifies the list of callbacks called when the user makes a selection from the text edit field that does not have an exact match with any of the items in the list box. The callback reason is XmCR_NO_MATCH. Callbacks in this list are called only if XmNmustMatch is true.

XmNokCallback

Specifies the list of callbacks called when the user activates the OK button. The callback reason is XmCR_OK. If the selection text does not match a list item, and XmNmustMatch is True, the XmNnoMatchCallback callbacks are called instead.

XmNokLabelString

Specifies the string label for the OK button. The default for this resource depends on the locale. In the C locale the default is ``OK''.

XmNselectionLabelString

Specifies the string label for the selection text edit field. The default for this resource depends on the locale. In the C locale the default is ``Selection''.

XmNtextAccelerators

Specifies translations added to the Text widget child of the SelectionBox. The default includes bindings for the up and down keys for auto selection of list items. This resource is ignored if XmNaccelerators is initialized to a nondefault value.

XmNtextColumns

Specifies the number of columns in the Text widget. The value must be greater than 0.

XmNtextString

Specifies the text in the text edit selection field.

Inherited resources

SelectionBox inherits behavior and resources from the following superclasses. For a complete description of each resource, refer to the man page for that superclass.

XmBulletinBoard resource set

Name Class Type Default Access

XmNallowOverlap XmCAllowOverlap Boolean True CSG

XmNautoUnmanage XmCAutoUnmanage Boolean True CG

XmNbuttonFontList XmCButtonFontList XmFontList dynamic CSG

XmNcancelButton XmCWidget Widget dynamic SG

XmNdefaultButton XmCWidget Widget dynamic SG

XmNdefaultPosition XmCDefaultPosition Boolean True CSG

XmNdialogStyle XmCDialogStyle unsigned char dynamic CSG

XmNdialogTitle XmCDialogTitle XmString NULL CSG

XmNfocusCallback XmCCallback XtCallbackList NULL C

XmNlabelFontList XmCLabelFontList XmFontList dynamic CSG

XmNmapCallback XmCCallback XtCallbackList NULL C

XmNmarginHeight XmCMarginHeight Dimension 10 CSG

XmNmarginWidth XmCMarginWidth Dimension 10 CSG

XmNnoResize XmCNoResize Boolean False CSG

XmNresizePolicy XmCResizePolicy unsigned char XmRESIZE_ANY CSG

XmNshadowType XmCShadowType unsigned char XmSHADOW_OUT CSG

XmNtextFontList XmCTextFontList XmFontList dynamic CSG

XmNtextTranslations XmCTranslations XtTranslations NULL C

XmNunmapCallback XmCCallback XtCallbackList NULL C

Name	Class	Type	Default	Access
XmNallowOverlap	XmCAllowOverlap	Boolean	True	CSG
XmNautoUnmanage	XmCAutoUnmanage	Boolean	True	CG
XmNbuttonFontList	XmCButtonFontList	XmFontList	dynamic	CSG
XmNcancelButton	XmCWidget	Widget	dynamic	SG
XmNdefaultButton	XmCWidget	Widget	dynamic	SG
XmNdefaultPosition	XmCDefaultPosition	Boolean	True	CSG
XmNdialogStyle	XmCDialogStyle	unsigned char	dynamic	CSG
XmNdialogTitle	XmCDialogTitle	XmString	NULL	CSG
XmNfocusCallback	XmCCallback	XtCallbackList	NULL	C
XmNlabelFontList	XmCLabelFontList	XmFontList	dynamic	CSG
XmNmapCallback	XmCCallback	XtCallbackList	NULL	C
XmNmarginHeight	XmCMarginHeight	Dimension	10	CSG
XmNmarginWidth	XmCMarginWidth	Dimension	10	CSG
XmNnoResize	XmCNoResize	Boolean	False	CSG
XmNresizePolicy	XmCResizePolicy	unsigned char	XmRESIZE_ANY	CSG
XmNshadowType	XmCShadowType	unsigned char	XmSHADOW_OUT	CSG
XmNtextFontList	XmCTextFontList	XmFontList	dynamic	CSG
XmNtextTranslations	XmCTranslations	XtTranslations	NULL	C
XmNunmapCallback	XmCCallback	XtCallbackList	NULL	C

XmManager resource set

Name Class Type Default Access

XmNbottomShadowColor XmCBottomShadowColor Pixel dynamic CSG

XmNbottomShadowPixmap XmCBottomShadowPixmap Pixmap XmUNSPECIFIED_PIXMAP CSG

XmNforeground XmCForeground Pixel dynamic CSG

XmNhelpCallback XmCCallback XtCallbackList NULL C

XmNhighlightColor XmCHighlightColor Pixel dynamic CSG

XmNhighlightPixmap XmCHighlightPixmap Pixmap dynamic CSG

XmNinitialFocus XmCInitialFocus Widget dynamic CSG

XmNnavigationType XmCNavigationType XmNavigationType XmTAB_GROUP CSG

XmNshadowThickness XmCShadowThickness Dimension dynamic CSG

XmNstringDirection XmCStringDirection XmStringDirection dynamic CG

XmNtopShadowColor XmCTopShadowColor Pixel dynamic CSG

XmNtopShadowPixmap XmCTopShadowPixmap Pixmap dynamic CSG

XmNtraversalOn XmCTraversalOn Boolean True CSG

XmNunitType XmCUnitType unsigned char dynamic CSG

XmNuserData XmCUserData XtPointer NULL CSG

Name	Class	Type	Default	Access
XmNbottomShadowColor	XmCBottomShadowColor	Pixel	dynamic	CSG
XmNbottomShadowPixmap	XmCBottomShadowPixmap	Pixmap	XmUNSPECIFIED_PIXMAP	CSG
XmNforeground	XmCForeground	Pixel	dynamic	CSG
XmNhelpCallback	XmCCallback	XtCallbackList	NULL	C
XmNhighlightColor	XmCHighlightColor	Pixel	dynamic	CSG
XmNhighlightPixmap	XmCHighlightPixmap	Pixmap	dynamic	CSG
XmNinitialFocus	XmCInitialFocus	Widget	dynamic	CSG
XmNnavigationType	XmCNavigationType	XmNavigationType	XmTAB_GROUP	CSG
XmNshadowThickness	XmCShadowThickness	Dimension	dynamic	CSG
XmNstringDirection	XmCStringDirection	XmStringDirection	dynamic	CG
XmNtopShadowColor	XmCTopShadowColor	Pixel	dynamic	CSG
XmNtopShadowPixmap	XmCTopShadowPixmap	Pixmap	dynamic	CSG
XmNtraversalOn	XmCTraversalOn	Boolean	True	CSG
XmNunitType	XmCUnitType	unsigned char	dynamic	CSG
XmNuserData	XmCUserData	XtPointer	NULL	CSG

Composite resource set

Name Class Type Default Access

XmNchildren XmCReadOnly WidgetList NULL G

XmNinsertPosition XmCInsertPosition XtOrderProc NULL CSG

XmNnumChildren XmCReadOnly Cardinal 0 G

Name	Class	Type	Default	Access
XmNchildren	XmCReadOnly	WidgetList	NULL	G
XmNinsertPosition	XmCInsertPosition	XtOrderProc	NULL	CSG
XmNnumChildren	XmCReadOnly	Cardinal	0	G

Core resource set

Name Class Type Default Access

XmNaccelerators XmCAccelerators XtAccelerators dynamic N/A

XmNancestorSensitive XmCSensitive Boolean dynamic G

XmNbackground XmCBackground Pixel dynamic CSG

XmNbackgroundPixmap XmCPixmap Pixmap XmUNSPECIFIED_PIXMAP CSG

XmNborderColor XmCBorderColor Pixel XtDefaultForeground CSG

XmNborderPixmap XmCPixmap Pixmap XmUNSPECIFIED_PIXMAP CSG

XmNborderWidth XmCBorderWidth Dimension 0 CSG

XmNcolormap XmCColormap Colormap dynamic CG

XmNdepth XmCDepth int dynamic CG

XmNdestroyCallback XmCCallback XtCallbackList NULL C

XmNheight XmCHeight Dimension dynamic CSG

XmNinitialResourcesPersistent XmCInitialResourcesPersistent Boolean True C

XmNmappedWhenManaged XmCMappedWhenManaged Boolean True CSG

XmNscreen XmCScreen Screen dynamic CG

XmNsensitive XmCSensitive Boolean True CSG

XmNtranslations XmCTranslations XtTranslations dynamic CSG

XmNwidth XmCWidth Dimension dynamic CSG

XmNx XmCPosition Position 0 CSG

XmNy XmCPosition Position 0 CSG

Name	Class	Type	Default	Access
XmNaccelerators	XmCAccelerators	XtAccelerators	dynamic	N/A
XmNancestorSensitive	XmCSensitive	Boolean	dynamic	G
XmNbackground	XmCBackground	Pixel	dynamic	CSG
XmNbackgroundPixmap	XmCPixmap	Pixmap	XmUNSPECIFIED_PIXMAP	CSG
XmNborderColor	XmCBorderColor	Pixel	XtDefaultForeground	CSG
XmNborderPixmap	XmCPixmap	Pixmap	XmUNSPECIFIED_PIXMAP	CSG
XmNborderWidth	XmCBorderWidth	Dimension	0	CSG
XmNcolormap	XmCColormap	Colormap	dynamic	CG
XmNdepth	XmCDepth	int	dynamic	CG
XmNdestroyCallback	XmCCallback	XtCallbackList	NULL	C
XmNheight	XmCHeight	Dimension	dynamic	CSG
XmNinitialResourcesPersistent	XmCInitialResourcesPersistent	Boolean	True	C
XmNmappedWhenManaged	XmCMappedWhenManaged	Boolean	True	CSG
XmNscreen	XmCScreen	Screen	dynamic	CG
XmNsensitive	XmCSensitive	Boolean	True	CSG
XmNtranslations	XmCTranslations	XtTranslations	dynamic	CSG
XmNwidth	XmCWidth	Dimension	dynamic	CSG
XmNx	XmCPosition	Position	0	CSG
XmNy	XmCPosition	Position	0	CSG

Callback information

A pointer to the following structure is passed to each callback:

   typedef struct
   {
   	int		reason;
   	XEvent		* event;
   	XmString	value;
   	int		length;
   } XmSelectionBoxCallbackStruct;

reason: Indicates why the callback was invoked
event: Points to the XEvent that triggered the callback
value: Indicates the XmString value selected by the user from the SelectionBox list or entered into the SelectionBox text field
length: Indicates the size in bytes of the XmString value

Translations

XmSelectionBox inherits translations from XmBulletinBoard.

Accelerators

The XmNtextAccelerators are added to the Text descendant of XmSelectionBox. The default accelerators are listed below. These accelerators may not directly correspond to a translation table.

   KUp:		SelectionBoxUpOrDown(0)
   KDown:		SelectionBoxUpOrDown(1)
   KBeginData:	SelectionBoxUpOrDown(2)
   KEndData:	SelectionBoxUpOrDown(3)
   KRestore:	SelectionBoxRestore()

Action routines

The XmSelectionBox action routines are described below:

SelectionBoxUpOrDown(0|1|2|3):

When called with a 0 argument, selects the previous item in the list and replaces the text with that item.

When called with a 1 argument, selects the next item in the list and replaces the text with that item.

When called with a 2 argument, selects the first item in the list and replaces the text with that item.

When called with a 3 argument, selects the last item in the list and replaces the text with that item.

SelectionBoxRestore():

Replaces the text value with the list selection. If no item in the list is selected, clears the text.

Additional behavior

The SelectionBox widget has the additional behavior described below:

MAny KCancel:: Calls the activate callbacks for the cancel button if it is sensitive. If no cancel button exists and the parent of the SelectionBox is a manager, passes the event to the parent.
KActivate:: Calls the activate callbacks for the button with the keyboard focus. If no button has the keyboard focus, calls the activate callbacks for the default button if it is sensitive. In a List widget or single-line Text widget, the List or Text action associated with KActivate is called before the SelectionBox actions associated with KActivate. In a multi-line Text widget, any KActivate event except KEnter calls the Text action associated with KActivate, then the SelectionBox actions associated with KActivate. If no button has the focus, no default button exists, and the parent of the SelectionBox is a manager, passes the event to the parent.
<OK Button Activated>:: If XmNmustMatch is True and the text does not match an item in the file list, calls the XmNnoMatchCallback callbacks with reason XmCR_NO_MATCH. Otherwise, calls the XmNokCallback callbacks with reason XmCR_OK.
<Apply Button Activated>:: Calls the XmNapplyCallback callbacks with reason XmCR_APPLY.
<Cancel Button Activated>:: Calls the XmNcancelCallback callbacks with reason XmCR_CANCEL.
<Help Button Activated>:: Calls the XmNhelpCallback callbacks with reason XmCR_HELP.
<MapWindow>:: Calls the callbacks for XmNmapCallback if the SelectionBox is a child of a Dialog shell.
<UnmapWindow>:: Calls the callbacks for XmNunmapCallback if the SelectionBox is the child of a DialogShell.

Virtual bindings

The bindings for virtual keys are vendor specific. For information about bindings for virtual buttons and keys, see VirtualBindings(X3mot).

References

Composite(X3mot), Constraint(X3mot), Core(X3mot), XmBulletinBoard(X3mot),
XmCreateSelectionBox(X3mot), XmCreateSelectionDialog(X3mot),
XmCreatePromptDialog(X3mot), XmManager(X3mot) and
XmSelectionBoxGetChild(X3mot).