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XmDataField(3) Library Functions Manual XmDataField(3)

XmDataField — The DataField widget class

#include <Xm/DataF.h>

The DataField widget is a Data Presentation widget that handles display and entry of data as text. The DataField widget is a subclass of the XmTextField widget intended for data entry applications. In addition to all of the normal XmTextField functionality, it supports regular expression-based parsing and acceptance/rejection of its input through the XmNpicture resource, and right justification through the XmNalignment resource.

The DataField widget provides added capability by supporting several types of validation: a DataField widget containing an invalid value will not give-up focus; the user must enter a correct value before proceeding to another field.

DataField inherits behavior, resources, and traits from Core, XmPrimitive, and XmTextField.

The class pointer is xmDataFieldWidgetClass.

The class name is XmDataField.

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).

XmDataField Resource Set
Name Class Type Default Access
XmNalignment XmCAlignment unsigned char XmALIGNMENT_BEGINNING CSG
XmNautoFill XmCAutoFill Boolean True CSG
XmNpicture XmCPicture String NULL CSG
XmNpictureErrorCallback XmCCallback XtCallbackList NULL C
XmNvalidateCallback XmCCallback XtCallbackList NULL C
When set to XmALIGNMENT_END, the widget aligns all its text with the right hand side of the input area.
When set to True, the widget "auto-fills" its contents when it can determine that the next character in the string must be a particular literal. For instance, the picture "###-####" automatically inserts a '-' character after receiving three numeric digits as input.
Specifies a picture for data entry in the widget. A picture acts as a template that formats the value you enter in a field. An example would be the US Phone Number picture: (###)###-####. The picture is used to convert characters entered into the field to a formatted value.

The following lists and defines the characters you can use in a picture, and how the DataField widget interprets them.

#
Any numeric digit
?
Case insensitive letter
&
Uppercase letter (forces lowercase to uppercase)
@
Case insensitive character
!
Uppercase character
;
Interpret the following character literally
*
Repeat the following character some number of times
[]
Characters within brackets are optional
{}
Characters within braces are grouped
,
Alternative values
Other characters are interpreted literally.
Set XmNpicture to NULL to disable regular expression processing. The DataField widget is cleared whenever the XmNpicture resource is changed.
Specifies a list of callbacks to be called when the XmDataField widget determines that data is being entered that does not match the format specified by the XmNpicture resource.
Specifies a list of callbacks to be called when data has been entered in the XmDataField widget and the user has moved out of the XmDataField widget (usually by pressing the Tab key). The callbacks can reject the movement of focus.

DataField inherits behavior and resources from the superclasses described in the following tables. For a complete description of each resource, refer to the reference page for that superclass.

XmTextFieldResource Set
Name Class Type Default Access
XmNactivateCallback XmCCallback XtCallbackList NULL C
XmNblinkRate XmCBlinkRate int 500 CSG
XmNcolumns XmCColumns short dynamic CSG
XmNcursorPosition XmCCursorPosition XmTextPosition 0 CSG
XmNcursorPositionVisible XmCCursorPositionVisible Boolean dynamic CSG
XmNdestinationCallback XmCCallback XtCallbackList NULL C
XmNeditable XmCEditable Boolean True CSG
XmNfocusCallback XmCCallback XtCallbackList NULL C
XmNfontList XmCFontList XmFontList dynamic CSG
XmNgainPrimaryCallback XmCCallback XtCallbackList NULL C
XmNlosePrimaryCallback XmCCallback XtCallbackList NULL C
XmNlosingFocusCallback XmCCallback XtCallbackList NULL C
XmNmarginHeight XmCMarginHeight Dimension 5 CSG
XmNmarginWidth XmCMarginWidth Dimension 5 CSG
XmNmaxLength XmCMaxLength int largest integer CSG
XmNmodifyVerifyCallback XmCCallback XtCallbackList NULL C
XmNmodifyVerifyCallbackWcs XmCCallback XtCallbackList NULL C
XmNmotionVerifyCallback XmCCallback XtCallbackList NULL C
XmNpendingDelete XmCPendingDelete Boolean True CSG
XmNrenderTable XmCRenderTable XmRenderTable dynamic CSG
XmNresizeWidth XmCResizeWidth Boolean False CSG
XmNselectionArray XmCSelectionArray XtPointer default array CSG
XmNselectionArrayCount XmCSelectionArrayCount int 3 CSG
XmNselectThreshold XmCSelectThreshold int 5 CSG
XmNvalue XmCValue String "" CSG
XmNvalueChangedCallback XmCCallback XtCallbackList NULL C
XmNvalueWcs XmCValueWcs wchar_t * (wchar_t *)"" CSG
XmNverifyBell XmCVerifyBell Boolean dynamic CSG

XmPrimitive Resource Set
Name Class Type Default Access
XmNbottomShadowColor XmCBottomShadowColor Pixel dynamic CSG
XmNbottomShadowPixmap XmCBottomShadowPixmap Pixmap XmUNSPECIFIED_PIXMAP CSG
XmNconvertCallback XmCCallback XtCallbackList NULL C
XmNforeground XmCForeground Pixel dynamic CSG
XmNhelpCallback XmCCallback XtCallbackList NULL C
XmNhighlightColor XmCHighlightColor Pixel dynamic CSG
XmNhighlightOnEnter XmCHighlightOnEnter Boolean False CSG
XmNhighlightPixmap XmCHighlightPixmap Pixmap dynamic CSG
XmNhighlightThickness XmCHighlightThickness Dimension 2 CSG
XmNlayoutDirection XmCLayoutDirection XmDirection dynamic CG
XmNnavigationType XmCNavigationType XmNavigationType XmTAB_GROUP CSG
XmNpopupHandlerCallback XmCCallback XtCallbackList NULL C
XmNshadowThickness XmCShadowThickness Dimension 2 CSG
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

Core Resource Set
Name Class Type Default Access
XmNaccelerators XmCAccelerators XtAccelerators dynamic CSG
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

XmDataField inherits translations from XmTextField.

A pointer to the following structure is passed to the list of routines for the XmNvalidateCallback:

typedef struct _XmDataFieldCallbackStruct {
	Widget   w;       /* The XmDataField */   
	String   text;    /* Proposed string */   
	Boolean  accept;  /* Accept return value, for validation */
} XmDataFieldCallbackStruct;

Core(3), XmCreateDataField(3), XmPrimitive(3), XmTextFieldSetString(3), XmTextFieldSetStringWcs(3), XmVaCreateDataField(3), and XmVaCreateManagedDataField(3).

This manual page documents the XmDataField widget shipped in Motif version 2.2

(c) 2002 by Integrated Computer Solutions, Inc.

Edited by Kevin Cook.