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Man Pages


Manual Reference Pages  -  XMSIMPLESPINBOX (3)

NAME

XmSimpleSpinBox — a simple SpinBox widget class

CONTENTS

SYNOPSIS

#include <Xm/SSpinB.h>

DESCRIPTION

The XmSimpleSpinBox widget is a user interface control to increment and decrement an arbitrary TextField. For example, it can be used to cycle through the months of the year or days of the month.

Widget subclassing is not supported for the XmSimpleSpinBox widget class.

    Classes

The XmSimpleSpinBox widget inherits behavior and resources from the Core, Composite and XmManager classes.

The class pointer is XmSimpleSpinBoxWidgetClass.

The class name is XmSimpleSpinBoxWidget.

    New Resources

The following table defines a set of widget resources used by the application to specify data. The application 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, the application must 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, the application must remove the Xm prefix and use the remaining letters (in either lower case or upper case, but including 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).

XmSimpleSpinBox Resource    
Set    
NameClassTypeDefaultAccess
XmNarrowLayoutXmCArrowLayoutunsigned charXmARROWS_ENDCSG
XmNarrowSensitivityXmCArrowSensitivityunsigned charXmARROWS-_SENSITIVECSG
XmNcolumnsXmCColumnshort20CSG
XmNdecimalPointsXmCDecimalPointsshort0CSG
XmNeditableXmCEditableBooleanTrueCSG
XmNincrementValueXmCIncrementValueint1CSG
XmNinitialDelayXmCInitialDelayunsigned int250CSG
XmNmaximumValueXmCMaximumValueint10CSG
XmNminimumValueXmCMinimumValueint0CSG
XmNmodifyVerifyCallbackXmCCallbackXtCallbackListNULLC
XmNnumValuesXmCNumValuesint0CSG
XmNpositionXmCPositionint0CSG
XmNrepeatDelayXmCRepeatDelayunsigned int200CSG
XmNspinBoxChildTypeXmCSpinBoxChildTypeunsigned charXmSTRINGCG
XmNtextFieldXmCTextFieldWidgetdynamicG
XmNvalueChangedCallbackXmCCallbackXtCallbackListNULLC
XmNvaluesXmCValuesXmStringTableNULLCSG
XmNarrowLayout Specifies the style and position of the SpinBox arrows. The following values are supported:
XmARROWS_FLAT_BEGINNING The arrows are placed side by side to the right of the TextField.
XmARROWS_FLAT_END The arrows are placed side by side to the left of the TextField.
XmARROWS_SPLIT The down arrow is on the left and the up arrow is on the right of the TextField.
XmARROWS_BEGINNING The arrows are stacked and placed on the left of the TextField.
XmARROWS_END The arrows are stacked and placed on the right of the TextField.
XmNarrowSensitivity Specifies the sensitivity of the arrows in the XmSimpleSpinBox. The following values are supported:
XmARROWS_SENSITIVE Both arrows are active to user selection.
XmARROWS_DECREMENT_SENSITIVE The down arrow is active and the up arrow is inactive to user selection.
XmARROWS_INCREMENT_SENSITIVE The up arrow is active and the down arrow is inactive to user selection.
XmARROWS_INSENSITIVE Both arrows are inactive to user selection.
XmNcolumns Specifies the number of columns of the text field.
XmNdecimalPoints Specifies the position of the radix character within the numeric value when XmNspinBoxChildType is XmNUMERIC. This resource is used to allow for floating point values in the XmSimpleSpinBox widget.
XmNeditable Specifies whether the text field can take input.
When XmNeditable is used on a widget it sets the dropsite to XmDROP_SITE_ACTIVE.
XmNincrementValue Specifies the amount to increment or decrement the XmNposition when the XmNspinBoxChildType is XmNUMERIC. When the Up action is activated, the XmNincrementValue is added to the XmNposition value; when the Down action is activated, the XmNincrementValue is subtracted from the XmNposition value. When XmNspinBoxChildType is XmSTRING, this resource is ignored.
XmNinitialDelay Specifies the amount of time in milliseconds before the Arrow buttons will begin to spin continuously.
XmNnumValues Specifies the number of items in the XmNvalues list when the XmNspinBoxChildType resource is XmSTRING. The value of this resource must be a positive integer. The XmNnumValues is maintained by the XmSimpleSpinBox widget when items are added or deleted from the XmNvalues list. When XmNspinBoxChildType is not XmSTRING, this resource is ignored.
XmNvalues Supplies the list of strings to cycle through when the XmNspinButtonChildType resource is XmSTRING. When XmNspinBoxChildType is not XmSTRING, this resource is ignored.
XmNmaximumValue Specifies the upper bound on the XmSimpleSpinBox’s range when XmNspinBoxChildType is XmNUMERIC.
XmNminimumValue Specifies the lower bound on the XmSimpleSpinBox’s range when XmNspinBoxChildType is XmNUMERIC.
XmNmodifyVerifyCallback Specifies the callback to be invoked just before the XmSimpleSpinBox position changes. The application can use this callback to implement new application-related logic (including setting new position spinning to, or canceling the impending action). For example, this callback can be used to stop the spinning just before wrapping at the upper and lower position boundaries. If the application sets the doit member of the XmSimpleSpinBoxCallbackStruct to False, nothing happens. Otherwise, the position changes. Reasons sent by the callback are XmCR_SPIN_NEXT, or XmCR_SPIN_PRIOR.
XmNposition The XmNposition resource has a different value based on the XmNspinBoxChildType resource. When XmNspinBoxChildType is XmSTRING, the XmNposition is the index into the XmNvalues list for the current item. When the XmNspinBoxChildType resource is XmNUMERIC, the XmNposition is the integer value of the XmSimpleSpinBox that falls within the range of XmNmaximumValue and XmNminimumValue.
XmNrepeatDelay Specifies the number of milliseconds between repeated calls to the XmNvalueChangedCallback while the user is spinning the XmSimpleSpinBox.
XmNspinBoxChildType Specifies the style of the XmSimpleSpinBox. The following values are supported:
XmSTRING The child is a string value that is specified through the XmNvalues resource and incremented and decremented by changing the XmNposition resource.
XmNUMERIC The child is a numeric value that is specified through the XmNposition resource and incremented according to the XmNincrementValue resource.
XmtextField Specifies the textfield widget.
XmNvalueChangedCallback Specifies the callback to be invoked whenever the value of the XmNposition resource is changed through the use of the spinner arrows. The XmNvalueChangedCallback passes the XmSimpleSpinBoxCallbackStruct call_data structure.

    Inherited Resources

The XmSimpleSpinBox widget inherits behavior and resources from the following named superclasses. For a complete description of each resource, see the man page for that superclass.

XmManager Resource    
Set    
NameClassTypeDefaultAccess
XmNbottomShadowColorXmCBottomShadowColorPixeldynamicCSG
XmNbottomShadowPixmapXmCBottomShadowPixmapPixmapXmUNSPECIFIED_PIXMAPCSG
XmNforegroundXmCForegroundPixeldynamicCSG
XmNhelpCallbackXmCCallbackXtCallbackListNULLC
XmNhighlightColorXmCHighlightColorPixeldynamicCSG
XmNhighlightPixmapXmCHighlightPixmapPixmapdynamicCSG
XmNinitialFocusXmCInitialFocusWidgetNULLCSG
XmNnavigationTypeXmCNavigationTypeXmNavigationTypedynamicCSG
XmNshadowThicknessXmCShadowThicknessDimensiondynamicCSG
XmNstringDirectionXmCStringDirectionXmStringDirectiondynamicCG
XmNtopShadowColorXmCTopShadowColorPixeldynamicCSG
XmNtopShadowPixmapXmCTopShadowPixmapPixmapdynamicCSG
XmNtraversalOnXmCTraversalOnBooleandynamicCSG
XmNunitTypeXmCUnitTypeunsigned chardynamicCSG
XmNuserDataXmCUserDataXtPointerNULLCSG

Composite Resource    
Set    
NameClassTypeDefaultAccess
XmNchildrenXmCReadOnlyWidgetListNULLG
XmNinsertPositionXmCInsertPositionXtOrderProcdefault procedureCSG
XmNnumChildrenXmCReadOnlyCardinal0G

Core Resource Set    
NameClassTypeDefaultAccess
XmNacceleratorsXmCAcceleratorsXtAcceleratorsdynamicCSG
XmNancestorSensitiveXmCSensitiveBooleandynamicG
XmNbackgroundXmCBackgroundPixeldynamicCSG
XmNbackgroundPixmapXmCPixmapPixmapXmUNSPECIFIED_PIXMAPCSG
XmNborderColorXmCBorderColorPixelXtDefaultForegroundCSG
XmNborderPixmapXmCPixmapPixmapXmUNSPECIFIED_PIXMAPCSG
XmNborderWidthXmCBorderWidthDimension0CSG
XmNcolormapXmCColormapColormapdynamicCG
XmNdepthXmCDepthintdynamicCG
XmNdestroyCallbackXmCCallbackXtCallbackListNULLC
XmNheightXmCHeightDimensiondynamicCSG
XmNinitialResourcesPersistentXmCInitialResourcesPersistentBooleanTrueC
XmNmappedWhenManagedXmCMappedWhenManagedBooleanTrueCSG
XmNscreenXmCScreenScreen *dynamicCG
XmNsensitiveXmCSensitiveBooleanTrueCSG
XmNtranslationsXmCTranslationsXtTranslationsdynamicCSG
XmNwidthXmCWidthDimensiondynamicCSG
XmNxXmCPositionPosition0CSG
XmNyXmCPositionPosition0CSG

    Callback Information

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

typedef struct {
        int             reason;
        XEvent          *event;
        Widget          widget;
        Boolean doit;
        int             position;
        XmString        value;
        Boolean crossed_boundary;
} XmSimpleSpinBoxCallbackStruct;

The reason argument indicates why the callback was invoked. There are three possible reasons for this callback to be issued. The reason is XmCR_OK when this is the first call to the callback at the beginning of a spin or if it is a single activation of the spin arrows. If the XmSimpleSpinBox is in the process of being continuously spun, then the reason will be XmCR_SPIN_NEXT or XmCR_SPIN_PRIOR, depending on the arrow that is spinning.

The event argument points to the XEvent that triggered the callback. It can be NULL when the XmSimpleSpinBox is continuously spinning.

The widget argument is the widget identifier for the simple spin box widget that has been affected by this callback.

The doit argument is set only when the call_data comes from the XmNmodifyVerifyCallback. It indicates that the action that caused the callback to be called should be performed. The action is not performed if doit is set to False.

The position argument is the new value of the XmNposition resource as a result of the spin.

The value argument is the new XmString value displayed in the Text widget as a result of the spin. The application must copy this string if it is used beyond the scope of the call_data structure.

The crossed_boundary argument is True when the spinbox cycles. This is the case when a XmNspinBoxChildType of XmSTRING wraps from the first item to the last or the last item to the first. In the case of the XmNspinBoxChildType of XmNUMERIC, the boundary is crossed when the XmSimpleSpinBox cycles from the maximum value to the minimum or vice versa.

ERRORS/WARNINGS

The toolkit will display a warning if the application tries to set the value of the XmNtextField resource, which is read-only (marked G in the resource table).

SEE ALSO

XmSpinBox(3), XmCreateSimpleSpinBox(3), XmCreateSpinBox(3), XmSimpleSpinBoxAddItem(3), XmSimpleSpinBoxDeletePos(3), XmSimpleSpinBoxSetItem(3), Composite(3), Core(3), XmManager(3), XmText(3), XmTextField(3), XtGetValues(3), XtSetValues(3), XmVaCreateSimpleSpinBox(3), and XmVaCreateManagedSimpleSpinBox(3).

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