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Man Pages


Manual Reference Pages  -  XMARROWBUTTONGADGET (3)

NAME

XmArrowButtonGadget — The ArrowButtonGadget widget class

CONTENTS

SYNOPSIS

#include <Xm/ArrowBG.h>

DESCRIPTION

ArrowButtonGadget consists of a directional arrow surrounded by a border shadow. When it is selected, the shadow changes to give the appearance that the ArrowButtonGadget has been pressed in. When it is unselected, the shadow reverts to give the appearance that the button is released, or out.

ArrowButtonGadget holds the XmQTactivatable trait.

    Classes

ArrowButtonGadget inherits behavior, resources, and traits from the Object, RectObj, and XmGadget classes.

The class pointer is xmArrowButtonGadgetClass.

The class name is XmArrowButtonGadget.

    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).

XmArrowButtonGadget Resource Set
NameClassTypeDefaultAccess
XmNactivateCallbackXmCCallbackXtCallbackListNULLC
XmNarmCallbackXmCCallbackXtCallbackListNULLC
XmNarrowDirectionXmCArrowDirectionunsigned charXmARROW_UPCSG
XmNdetailShadowThicknessXmCDetailShadowThicknessDimension2CSG
XmNdisarmCallbackXmCCallbackXtCallbackListNULLC
XmNmultiClickXmCMultiClickunsigned chardynamicCSG
XmNactivateCallback Specifies a list of callbacks that is called when the ArrowButtonGadget is activated. To activate the button, press and release BSelect while the pointer is inside the ArrowButtonGadget. Activating the ArrowButtonGadget also disarms it. The reason sent by this callback is XmCR_ACTIVATE. This callback uses the XmQTactivatable trait.
XmNarmCallback Specifies a list of callbacks that is called when the ArrowButtonGadget is armed. To arm this widget, press BSelect while the pointer is inside the ArrowButtonGadget. The reason sent by this callback is XmCR_ARM.
XmNarrowDirection Sets the arrow direction. The values for this resource are
o XmARROW_UP
o XmARROW_DOWN
o XmARROW_LEFT
o XmARROW_RIGHT
XmNdetailShadowThickness Specifies the thickness of the inside arrow shadows. The default thickness is 2 pixels.
XmNdisarmCallback Specifies a list of callbacks that is called when the ArrowButtonGadget is disarmed. To disarm this widget, press and release BSelect while the pointer is inside the ArrowButtonGadget. The reason sent by this callback is XmCR_DISARM.
XmNmultiClick If a button click is followed by another button click within the time span specified by the display’s multiclick time and this resource is set to XmMULTICLICK_DISCARD, the second click is not processed. If this resource is set to XmMULTICLICK_KEEP, the event is processed and click_count is incremented in the callback structure. When the ArrowButtonGadget is not in a menu, the default value is XmMULTICLICK_KEEP.

    Inherited Resources

XmArrowButtonGadget 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.

XmGadget Resource Set
NameClassTypeDefaultAccess
XmNbackgroundXmCBackgroundPixeldynamicCSG
XmNbackgroundPixmapXmCPixmapPixmapXmUNSPECIFIED_PIXMAPCSG
XmNbottomShadowColorXmCBottomShadowColorPixeldynamicCSG
XmNbottomShadowPixmapXmCBottomShadowPixmapPixmapdynamicCSG
XmNhelpCallbackXmCCallbackXtCallbackListNULLC
XmNforegroundXmCForegroundPixeldynamicCSG
XmNhighlightColorXmCHighlightColorPixeldynamicCSG
XmNhighlightOnEnterXmCHighlightOnEnterBooleanFalseCSG
XmNhighlightPixmapXmCHighlightPixmapPixmapdynamicCSG
XmNhighlightThicknessXmCHighlightThicknessDimension2CSG
XmNlayoutDirectionXmNCLayoutDirectionXmDirectiondynamicCG
XmNnavigationTypeXmCNavigationTypeXmNavigationTypeXmNONECSG
XmNshadowThicknessXmCShadowThicknessDimension2CSG
XmNtopShadowColorXmCTopShadowColorPixeldynamicCSG
XmNtopShadowPixmapXmCTopShadowPixmapPixmapdynamicCSG
XmNtraversalOnXmCTraversalOnBooleanTrueCSG
XmNunitTypeXmCUnitTypeunsigned chardynamicCSG
XmNuserDataXmCUserDataXtPointerNULLCSG

RectObj Resource Set
NameClassTypeDefaultAccess
XmNancestorSensitiveXmCSensitiveBooleandynamicG
XmNborderWidthXmCBorderWidthDimension0N/A
XmNheightXmCHeightDimensiondynamicCSG
XmNsensitiveXmCSensitiveBooleanTrueCSG
XmNwidthXmCWidthDimensiondynamicCSG
XmNxXmCPositionPosition0CSG
XmNyXmCPositionPosition0CSG

Object Resource Set
NameClassTypeDefaultAccess
XmNdestroyCallbackXmCCallbackXtCallbackListNULLC

    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.
click_count This value is valid only when the reason is XmCR_ACTIVATE. It contains the number of clicks in the last multiclick sequence if the XmNmultiClick resource is set to XmMULTICLICK_KEEP, otherwise it contains 1. The activate callback is invoked for each click if XmNmultiClick is set to XmMULTICLICK_KEEP.

    Behavior

XmArrowButtonGadget includes behavior from XmGadget. The following list describes additional XmArrowButtonGadget behavior:
<Btn1Down>: Draws the shadow in the selected state and calls the callbacks for XmNarmCallback.
<Btn1Down> or <Btn1Up>: Draws the shadow in the unselected state. If the pointer is within the ArrowButtonGadget, calls the callbacks for XmNactivateCallback. Calls the callbacks for XmNdisarmCallback.
<Btn1Down>(2+): If XmNmultiClick is XmMULTICLICK_DISCARD, this action does nothing. If XmNmultiClick is XmMULTICLICK_KEEP, this action draws the shadow in the selected state and calls the callbacks for XmNarmCallback.
<Btn1Up>(2+): If XmNmultiClick is XmMULTICLICK_DISCARD, this action does nothing.
If XmNmultiClick is XmMULTICLICK_KEEP, this action increments click_count in the callback structure and draws the shadow in the unselected state. If the pointer is within the ArrowButtonGadget, this action calls the callbacks for XmNactivateCallback and XmNdisarmCallback.
<Key><osfSelect>: 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.
<Key><osfHelp>: 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.
<Enter>: Draws the ArrowButtonGadget shadow in its selected state if the pointer leaves and re-enters the gadget while <Btn1> is pressed.
<Leave>: Draws the ArrowButtonGadget shadow in its unselected state if the pointer leaves the gadget while <Btn1> is pressed.

    Virtual Bindings

The bindings for virtual keys are vendor specific. For information about bindings for virtual buttons and keys, see VirtualBindings(3).

RELATED

Object(3), RectObj(3), XmCreateArrowButtonGadget(3), XmGadget(3), XmVaCreateArrowButtonGadget(3), and XmVaCreateManagedArrowButtonGadget(3).

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