XmArrowButton(Xm) 6 January 1993 XmArrowButton(Xm) Name XmArrowButton - the ArrowButton widget class Syntax #include <Xm/ArrowB.h> Description ArrowButton consists of a directional arrow surrounded by a border sha- dow. When it is selected, the shadow changes to give the appearance that the ArrowButton has been pressed in. When the ArrowButton is unselected, the shadow reverts to give the appearance that the ArrowButton is released, or out. Classes ArrowButton inherits behavior and resources from Core and XmPrimitive classes. The class pointer is xmArrowButtonWidgetClass. The class name is XmArrowButton. New resources The following table defines a set of widget resources used by the pro- grammer to specify data. The programmer can also set the resource values for the inherited classes to set attributes for this widget. To refer- ence 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). XmArrowButton resource set ____________________________________________________________________________ Name Class Type Default Access ____________________________________________________________________________ XmNactivateCall- XmCCallback XtCallbackList NULL C back XmNarmCallback XmCCallback XtCallbackList NULL C XmNarrowDirection XmCArrowDirection unsigned char XmARROW_UP CSG XmNdisarmCallback XmCCallback XtCallbackList NULL C XmNmultiClick XmCMultiClick unsigned char dynamic CSG XmNactivateCallback Specifies a list of callbacks that is called when the ArrowButton is activated. To activate the button, press and release BSelect while the pointer is inside the ArrowButton widget. Activating the ArrowButton also disarms it. The reason sent by this call- back is XmCRACTIVATE. XmNarmCallback Specifies a list of callbacks that is called when the ArrowButton is armed. To arm this widget, press BSelect while the pointer is inside the ArrowButton. The reason sent by this callback is XmCRARM. XmNarrowDirection Sets the arrow direction. The following are values for this resource: + XmARROWUP. + XmARROWDOWN. + XmARROWLEFT. + XmARROWRIGHT. XmNdisarmCallback Specifies a list of callbacks that is called when the ArrowButton is disarmed. To disarm this widget, press and release BSelect while the pointer is inside the ArrowButton. The reason for this callback is XmCRDISARM. XmNmultiClick If a button click is followed by another button click within the time span specified by the display's multi-click time, and this resource is set to XmMULTICLICKDISCARD, do not process the second click. If this resource is set to XmMULTICLICKKEEP, pro- cess the event and increment clickcount in the callback struc- ture. When the button is not in a menu, the default value is XmMULTICLICKKEEP. Inherited resources ArrowButton inherits behavior and resources from the following superclasses. For a complete description of each resource, refer to the man page for that superclass. XmPrimitive resource set ____________________________________________________________________________ Name Class Type Default Access ____________________________________________________________________________ XmNbottomShadow- XmCBottomShadow- Pixel dynamic CSG Color Color XmNbottomShadow- XmCBottomShadow- Pixmap XmUNSPECIFIED_- CSG Pixmap Pixmap PIXMAP XmNforeground XmCForeground Pixel dynamic CSG XmNhelpCallback XmCCallback XtCallbackList NULL C XmNhighlightColor XmCHighlightColor Pixel dynamic CSG XmNhighlightOnEnterXmCHighlightOn- Boolean False CSG Enter XmNhighlightPixmap XmCHighlightPixmap Pixmap dynamic CSG XmNhighlight- XmCHighlight- Dimension 2 CSG Thickness Thickness XmNnavigationType XmCNavigationType XmNavigationTypeXmNONE CSG 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 XmNancestor- XmCSensitive Boolean dynamic G Sensitive XmNbackground XmCBackground Pixel dynamic CSG XmNbackground- XmCPixmap Pixmap XmUNSPECIFIED_- CSG Pixmap PIXMAP XmNborderColor XmCBorderColor Pixel XtDefaultFore- CSG ground XmNborderPixmap XmCPixmap Pixmap XmUNSPECIFIED_- CSG PIXMAP 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 XmNinitial- XmCInitial- Boolean True C Resources- Resources- Persistent Persistent XmNmappedWhen- XmCMappedWhen- Boolean True CSG Managed Managed 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; int click_count; } XmArrowButtonCallbackStruct; reason Indicates why the callback was invoked. event Points to the XEvent that triggered the callback. clickcount This value is valid only when the reason is XmCRACTIVATE. It contains the number of clicks in the last multiclick sequence if the XmNmultiClick resource is set to XmMULTICLICKKEEP; otherwise it contains 1. The activate callback is invoked for each click if XmNmultiClick is set to XmMULTICLICKKEEP. Translations XmArrowButton includes translations for XmPrimitive. Additional XmAr- rowButton translations are listed below. These translations may not directly correspond to a translation table. BSelect Press: Arm() BSelect Click: Activate() Disarm() BSelect Release: Activate() Disarm() BSelect Press 2+: MultiArm() BSelect Release 2+: MultiActivate() KSelect: ArmAndActivate() KHelp: Help() Action routines The XmArrowButton action routines are described below: Activate(): Draws the shadow in the unselected state. If the pointer is within the ArrowButton, calls the callbacks for XmNactivateCall- back. Arm(): Draws the shadow in the selected state and calls the callbacks for XmNarmCallback. ArmAndActivate(): Draws the shadow in the selected state and calls the callbacks for XmNarmCallback. Arranges for the shadow to be drawn in the unselected state and the callbacks for XmNactivateCallback and XmNdisarmCallback to be called, either immediately or at a later time. Disarm(): Draws the shadow in the unselected state and calls the callbacks for XmNdisarmCallback. Help(): Calls the callbacks for XmNhelpCallback if any exist. If there are no help callbacks for this widget, this action calls the help callbacks for the nearest ancestor that has them. MultiActivate(): If XmNmultiClick is XmMULTICLICKDISCARD, this action does noth- ing. If XmNmultiClick is XmMULTICLICKKEEP, this action does the fol- lowing: Increments clickcount in the callback structure. Draws the shadow in the unselected state. If the pointer is within the ArrowButton, calls the callbacks for XmNactivateCallback. Calls the callbacks for XmNdisarmCallback. MultiArm(): If XmNmultiClick is XmMULTICLICKDISCARD, this action does noth- ing. If XmNmultiClick is XmMULTICLICKKEEP, this action draws the shadow in the selected state and calls the callbacks for XmNarmCallback. Additional behavior This widget has the additional behavior described below: <EnterWindow>: Draws the ArrowButton shadow in its selected state if the pointer leaves and re-enters the window while BSelect is pressed. <LeaveWindow>: Draws the ArrowButton shadow in its unselected state if the pointer leaves the window while BSelect is pressed. Virtual bindings The bindings for virtual keys are vendor specific. For information about bindings for virtual buttons and keys, see VirtualBindings(Xm). See also Core(Xm), XmCreateArrowButton(Xm) and XmPrimitive(Xm).