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0 Command: XmPushButtonGadget | Section: 3 | Source: Digital UNIX | File: XmPushButtonGadget.3X.gz
XmPushButtonGadget(3X) XmPushButtonGadget(3X) NAME XmPushButtonGadget - The PushButtonGadget widget class SYNOPSIS #include <Xm/PushBG.h> DESCRIPTION PushButtonGadget issues commands within an application. It consists of a text label or pixmap surrounded by a border shadow. When PushButton- Gadget is selected, the shadow changes to give the appearance that the PushButtonGadget has been pressed in. When PushButtonGadget is unse- lected, the shadow changes to give the appearance that the PushButton- Gadget is out. The default behavior associated with a PushButtonGadget in a menu de- pends on the type of menu system in which it resides. By default, BSe- lect controls the behavior of the PushButtonGadget. In addition, BMenu controls the behavior of the PushButtonGadget if it resides in a Popup- Menu system. The actual mouse button used is determined by its RowCol- umn parent. Thickness for a second shadow may be specified by using the XmNshowAs- Default resource. If it has a non-zero value, the Label's resources XmNmarginLeft, XmNmarginRight, XmNmarginTop, and XmNmarginBottom may be modified to accommodate the second shadow. If an initial value is specified for XmNarmPixmap but not for XmNla- belPixmap, the XmNarmPixmap value is used for XmNlabelPixmap. Classes PushButtonGadget inherits behavior and resources from Object, RectObj, XmGadget and XmLabelGadget classes. The class pointer is xmPushButtonGadgetClass. The class name is XmPushButtonGadget. 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 val- ues 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). XmPushButtonGadget Class: XmCCallback Default: NULL Type: XtCallbackList Access: C Class: XmCCallback Default: NULL Type: XtCallbackList Access: C Class: Xm- CArmColor Default: dynamic Type: Pixel Access: CSG Class: XmCArmPixmap Default: XmUNSPECIFIED_PIXMAP Type: Pixmap Access: CSG Class: XmCde- faultButtonShadowThickness Default: dynamic Type: Dimension Access: CSG Class: XmCCallback Default: NULL Type: XtCallbackList Access: C Class: XmCFillOnArm Default: True Type: Boolean Access: CSG Class: Xm- CMultiClick Default: dynamic Type: unsigned char Access: CSG Class: XmCShowAsDefault Default: 0 Type: Dimension Access: CSG Specifies the list of callbacks that is called when the PushBut- tonGadget is activated. It is activated when the user presses and releases the active mouse button while the pointer is inside the PushButtonGadget. Activating PushButtonGadget also disarms it. For this callback the reason is XmCR_ACTIVATE. Specifies the list of callbacks that is called when PushButtonGadget is armed. It is armed when the user presses the active mouse button while the pointer is inside the PushButtonGadget. For this call- back the reason is XmCR_ARM. Specifies the color with which to fill the armed button. XmNfillOnArm must be set to True for this resource to have an effect. The default for a color display is a color between the background and the bottom shadow color. For a monochrome display, the default is set to the foreground color, and any text in the label appears in the background color when the button is armed. Specifies the pixmap to be used as the button face if XmNlabeltype is XmPIXMAP and PushButtonGadget is armed. This resource is disabled when the PushButtonGadget is in a menu. This resource specifies the width of the default button indicator shadow. If this resource is zero, the width of the shadow comes from the value of the XmNshowAsDefault resource. If this resource is greater than zero, the XmNshowAsDefault re- source is only used to specify whether this button is the de- fault. The default value is the initial value of XmNshowAsDe- fault. Specifies the list of callbacks that is called when the PushButtonGadget is disarmed. PushButtonGadget is disarmed when the user presses and releases the active mouse button while the pointer is inside that gadget. For this callback, the reason is XmCR_DISARM. Forces the PushButtonGadget to fill the background of the button with the color specified by XmNarmColor when the button is armed and when this resource is set to True. If False, only the top and bottom shadow colors are switched. When the PushButtonGadget is in a menu, this resource is ignored and assumed to be False. 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 XmMULTICLICK_DIS- CARD, do not process the second click. If this resource is set to XmMULTICLICK_KEEP, process the event and increment click_count in the callback structure. When the button is in a menu, the default is XmMULTICLICK_DISCARD; otherwise, for a but- ton not in a menu XmMULTICLICK_KEEP is the default value. If XmNdefaultButtonShadowThickness is greater than zero, a value greater than zero in this resource specifies to mark this button as the default button. If XmNdefaultButtonShadowThickness is zero, a value greater than zero in this resource specifies to mark this button as the default button with the shadow thickness specified by this resource. The space between the shadow and the default shadow is equal to the sum of both shadows. The default value is zero. When this value is not zero, the Label resources XmNmarginLeft, XmNmarginRight, XmNmarginTop, and XmNmarginBottom may be modified to accommodate the second shadow. This resource is disabled when the PushButton is in a menu. Inherited Resources PushButtonGadget inherits behavior and resources from the following su- perclasses. For a complete description of each resource, refer to the man page for that superclass. XmLabelGadget Resource Set Class: XmCAccelerator Default: NULL Type: String Access: CSG Class: XmCAcceleratorText Default: NULL Type: XmString Access: CSG Class: Xm- CAlignment Default: dynamic Type: unsigned char Access: CSG Class: Xm- CFontList Default: dynamic Type: XmFontList Access: CSG Class: XmCLa- belInsensitivePixmap Default: XmUNSPECIFIED_PIXMAP Type: Pixmap Ac- cess: CSG Class: XmCLabelPixmap Default: dynamic Type: Pixmap Access: CSG Class: XmCXmString Default: dynamic Type: XmString Access: CSG Class: XmCLabelType Default: XmSTRING Type: unsigned char Access: CSG Class: XmCMarginBottom Default: dynamic Type: Dimension Access: CSG Class: XmCMarginHeight Default: 2 Type: Dimension Access: CSG Class: XmCMarginLeft Default: dynamic Type: Dimension Access: CSG Class: XmC- MarginRight Default: dynamic Type: Dimension Access: CSG Class: XmC- MarginTop Default: dynamic Type: Dimension Access: CSG Class: XmCMar- ginWidth Default: 2 Type: Dimension Access: CSG Class: XmCMnemonic De- fault: NULL Type: KeySym Access: CSG Class: XmCMnemonicCharSet De- fault: dynamic Type: String Access: CSG Class: XmCRecomputeSize De- fault: True Type: Boolean Access: CSG Class: XmCStringDirection De- fault: dynamic Type: XmStringDirection Access: CSG XmGadget Resource Set Class: XmCBottomShadowColor Default: dynamic Type: Pixel Access: G Class: XmCCallback Default: NULL Type: XtCallbackList Access: C Class: XmCHighlightColor Default: dynamic Type: Pixel Access: G Class: Xm- CHighlightOnEnter Default: False Type: Boolean Access: CSG Class: Xm- CHighlightThickness Default: 2 Type: Dimension Access: CSG Class: XmC- NavigationType Default: XmNONE Type: XmNavigationType Access: CSG Class: XmCShadowThickness Default: 2 Type: Dimension Access: CSG Class: XmCTopShadowColor Default: dynamic Type: Pixel Access: G Class: XmCTraversalOn Default: True Type: Boolean Access: CSG Class: XmCUnit- Type Default: dynamic Type: unsigned char Access: CSG Class: XmCUser- Data Default: NULL Type: XtPointer Access: CSG RectObj Resource Set Class: XmCSensitive Default: dynamic Type: Boolean Access: G Class: XmCBorderWidth Default: 0 Type: Dimension Access: CSG Class: XmCHeight Default: dynamic Type: Dimension Access: CSG Class: XmCSensitive De- fault: True Type: Boolean Access: CSG Class: XmCWidth Default: dynamic Type: Dimension Access: CSG Class: XmCPosition Default: 0 Type: Posi- tion Access: CSG Class: XmCPosition Default: 0 Type: Position Access: CSG Object Resource Set Class: XmCCallback Default: NULL Type: XtCallbackList Access: C Callback Information A pointer to the following structure is passed to each callback: typedef struct { int reason; XEvent * event; int click_count; } XmPushButtonCallbackStruct; Indicates why the callback was invoked. Points to the XEvent that triggered the callback. 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 XmPushButtonGadget includes behavior from XmGadget. XmPushButtonGadget includes menu traversal behavior from XmLabelGadget. Additional behav- ior for XmPushButtonGadget is described below: Drags the contents of a PushButtonGadget label, identified by pressing BDrag. This action cre- ates a DragContext object whose XmNexportTargets resource is set to COMPOUND_TEXT for a label type of XmSTRING; otherwise, PIXMAP if the label type is XmPIXMAP. This action is undefined for PushButtonGadgets used in a menu system. This action arms the PushButtonGadget. In a menu, this action unposts any menus posted by the PushBut- tonGadget's parent menu, disables keyboard traversal for the menu, and enables mouse traversal for the menu. It draws the shadow in the armed state. Unless the button is already armed, it calls the XmNarmCallback callbacks. If the button is not in a menu, this action draws the shadow in the armed state. If XmNfillOnArm is set to True, it fills the button with the color specified by XmNarmColor. If XmNlabelType is XmPIXMAP, the XmNarmPixmap is used for the button face. It calls the XmNarmCallback callbacks. If XmNmultiClick is XmMUL- TICLICK_DISCARD, this action does nothing. If XmNmultiClick is XmMULTICLICK_KEEP, this action does the fol- lowing: Draws the shadow in the armed state. If the button is not in a menu and if XmNfillOnArm is set to True, fills the but- ton with the color specified by XmNarmColor. If XmNlabelType is XmPIXMAP, the XmNarmPixmap is used for the button face. Calls the XmNarmCallback callbacks. In a menu, this action unposts all menus in the menu hierarchy and activates the PushButtonGad- get. It calls the XmNactivateCallback callbacks and then the Xm- NdisarmCallback callbacks. If the PushButtonGadget is not in a menu, this action draws the shadow in the unarmed state. If XmNfillOnArm is set to True, the background color reverts to the unarmed color. If XmNlabelType is XmPIXMAP, the XmNlabelPixmap is used for the button face. If the pointer is still within the button, this action calls the callbacks for XmNactivateCallback. Calls the callbacks for Xm- NdisarmCallback. If XmNmultiClick is XmMULTICLICK_DISCARD, this action does nothing. If XmNmultiClick is XmMULTICLICK_KEEP, this action does the fol- lowing: Increments click_count in the callback structure. Draws the shadow in the unarmed state. If the button is not in a menu and if XmNfillOnArm is set to True, the background color reverts to the unarmed color. If XmNlabelType is XmPIXMAP, the XmNla- belPixmap is used for the button face. If the pointer is within the PushButtonGadget, calls the callbacks for XmNactivateCall- back. Calls the callbacks for XmNdisarmCallback. In a menu, does the following: unposts all menus in the menu hierarchy; un- less the button is already armed, calls the XmNarmCallback call- backs; and calls the XmNactivateCallback and XmNdisarmCallback callbacks. Outside a menu, KActivate has no effect. For Push- ButtonGadgets outside of a menu, if the parent is a manager, this action passes the event to the parent. In a menu, does the following: Unposts all menus in the menu hierarchy. Unless the button is already armed, calls the XmNarmCallback callbacks. Calls the XmNactivateCallback and XmNdisarmCallback callbacks. Outside a menu, does the following: Draws the shadow in the armed state and, if XmNfillOnArm is set to True, fills the but- ton with the color specified by XmNarmColor. If XmNlabelType is XmPIXMAP, the XmNarmPixmap is used for the button face. Calls the XmNarmCallback callbacks. Outside a menu, this action also arranges for the following to happen, either immediately or at a later time: The shadow is drawn in the unarmed state and, if XmNfillOnArm is set to True, the background color reverts to the unarmed color. If XmNlabel- Type is XmPIXMAP, the XmNlabelPixmap is used for the button face. The XmNactivateCallback and XmNdisarmCallback callbacks are called. In a Pulldown or Popup MenuPane, unposts all menus in the menu hierarchy and restores keyboard focus to the widget that had the focus before the menu system was entered. 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. In a toplevel Pulldown MenuPane from a MenuBar, unposts the menu, disarms the MenuBar CascadeButton and the MenuBar, and restores keyboard focus to the widget that had the focus before the MenuBar was entered. In other Pulldown MenuPanes, unposts the menu. In a Popup MenuPane, unposts the menu and restores keyboard fo- cus to the widget from which the menu was posted. For a PushBut- tonGadget outside of a menu, if the parent is a manger, this ac- tion passes the event to the parent. In a menu, if keyboard traversal is enabled, this action does nothing. Otherwise, it draws the shadow in the armed state and calls the XmNarmCallback callbacks. If the PushButtonGadget is not in a menu and the cursor leaves and then reenters the PushButtonGadget while the button is pressed, this action draws the shadow in the armed state. If Xm- NfillOnArm is set to True, it also fills the button with the color specified by XmNarmColor. If XmNlabelType is XmPIXMAP, the XmNarmPixmap is used for the button face. In a menu, if key- board traversal is enabled, this action does nothing. Otherwise, it draws the shadow in the unarmed state and calls the XmNdis- armCallback callbacks. If the PushButtonGadget is not in a menu and the cursor leaves the PushButtonGadget while the button is pressed, this action draws the shadow in the unarmed state. If XmNfillOnArm is set to True, the background color reverts to the unarmed color. If XmNlabelType is XmPIXMAP, the XmNlabelPixmap is used for the button face. Virtual Bindings The bindings for virtual keys are vendor specific. For information about bindings for virtual buttons and keys, see VirtualBindings(3X). SEE ALSO Object(3X), RectObj(3X), XmCreatePushButtonGadget(3X), XmGadget(3X), XmLabelGadget(3X), XmRowColumn(3X) XmPushButtonGadget(3X)

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