XmRowColumn(Xm)

XmRowColumn -- the RowColumn widget class

Syntax

#include <Xm/RowColumn.h>

Description

The RowColumn widget is a general purpose RowColumn manager capable of containing any widget type as a child. In general, it requires no special knowledge about how its children function and provides nothing beyond support for several different layout styles. However, it can be configured as a menu, in which case, it expects only certain children, and it configures to a particular layout. The menus supported are: MenuBar, Pulldown or Popup MenuPanes, and OptionMenu.

The type of layout performed is controlled by how the application has set the various layout resources. It can be configured to lay out its children in either rows or columns. In addition, the application can specify how the children are laid out, as follows:

the children are packed tightly together into either rows or columns
each child is placed in an identically sized box (producing a symmetrical look)
a specific layout (the current x and y positions of the children control their location)

In addition, the application has control over both the spacing that occurs between each row and column and the margin spacing present between the edges of the RowColumn widget and any children that are placed against it.

In a MenuBar, Pulldown MenuPane, or Popup MenuPane the default for the XmNshadowThickness resource is 2. In an OptionMenu or a WorkArea (such as a RadioBox or CheckBox) this resource is not applicable and its use is undefined. If an application wishes to place a 3-D shadow around an OptionMenu or WorkArea, it can create the RowColumn as a child of a Frame widget.

In a MenuBar, Pulldown MenuPane, or Popup MenuPane the XmNnavigationType resource is not applicable and its use is undefined. In a WorkArea the default for XmNnavigationType is XmTAB_GROUP. In an OptionMenu the default for XmNnavigationType is XmNONE.

In a MenuBar, Pulldown MenuPane, or Popup MenuPane the XmNtraversalOn resource is not applicable and its use is undefined. In an OptionMenu or WorkArea the default for XmNtraversalOn is True.

If the parent of the RowColumn is a MenuShell, the XmNmappedWhenManaged resource is forced to False when the widget is realized.

The user can specify resources in a resource file for the automatically created widgets and gadgets of an OptionMenu. The following list identifies the names of these widgets (or gadgets) and the associated OptionMenu areas.

Option Menu Label Gadget -- ``OptionLabel''
Option Menu Cascade Button -- ``OptionButton''

Tear-off menus

Pulldown and Popup MenuPanes support tear-off menus, which enable the user to retain a MenuPane on the display to facilitate subsequent menu selections. A MenuPane that can be torn-off is identified by a tear-off button that spans the width of the MenuPane and displays a dashed line. A torn-off MenuPane contains a window manager system menu icon and a title bar. The window title displays the label of the cascade button that initiated the action when the label type is XmSTRING. If the label contains a pixmap the window title is empty. A tear-off menu from a Popup MenuPane also displays an empty title.

The user can tear-off a MenuPane using the mouse or keyboard. Clicking BSelect or pressing KActivate (or KSelect) on the tear-off button, tears off the MenuPane at the current position. Pressing BDrag on the tear-off button tears off the MenuPane, and allows the user to drag the torn-off menu to a new position designated by releasing the mouse button. Tearing off a MenuPane unposts the current active menu. Only one tear-off copy for each MenuPane is allowed. Subsequent tear-off actions of a torn MenuPane unpost the existing copy first.

The name of the tear-off button of a torn-off menu pane is ``TearOffControl''. The name can be used to set resources in a resource file. An application can also obtain the tear-off button itself using XmGetTearOffControl and then set resource values by calling XtSetValues.

The tear-off button has Separator-like behavior. Its appearance can be specified using the following tear-off button resources: XmNbackground, XmNbackgroundPixmap, XmNbottomShadowColor, XmNforeground, XmNheight, XmNmargin, XmNseparatorType, XmNshadowThickness, and XmNtopShadowColor. Refer to the XmSeparator man page for a complete description of each of these resources.

RowColumn resources that affect tear-off menu behavior are XmNtearOffModel, XmNtearOffMenuActivateCallback, and XmNtearOffMenuDeactivateCallback.

By default, menus do not tear off; tear off functionality may be enabled by setting the XmNtearOffModel resource to XmTEAR_OFF_ENABLED. There is no resource converter pre-registered for XmNtearOffModel. To allow tear-off functionality to be enabled through the resource database call the function XmRepTypeInstallTearOffModelConverter.

Tear-off menu focus policy follows standard window manager policy. It is recommended that the following mwm resources are set to True: startupKeyFocus and autoKeyFocus.

Classes

RowColumn inherits behavior and resources from Core, Composite, Constraint, and XmManager classes.

The class pointer is xmRowColumnWidgetClass.

The class name is XmRowColumn.

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).

XmRowColumn resource set

Name Class Type Default Access

XmNadjustLast XmCAdjustLast Boolean True CSG

XmNadjustMargin XmCAdjustMargin Boolean True CSG

XmNentryAlignment XmCAlignment unsigned char XmALIGNMENT_BEGINNING

CSG

XmNentryBorder XmCEntryBorder Dimension 0 CSG

XmNentryCallback XmCCallback XtCallbackList NULL C

XmNentryClass XmCEntryClass WidgetClass dynamic CSG

XmNentryVerticalAlignment XmCVerticalAlignment unsigned char XmALIGNMENT_CENTER

CSG

XmNisAligned XmCIsAligned Boolean True CSG

XmNisHomogeneous XmCIsHomogeneous Boolean dynamic CG

XmNlabelString XmCXmString XmString NULL C

XmNmapCallback XmCCallback XtCallbackList NULL C

XmNmarginHeight XmCMarginHeight Dimension dynamic CSG

XmNmarginWidth XmCMarginWidth Dimension dynamic CSG

XmNmenuAccelerator XmCAccelerators

String dynamic CSG

XmNmenuHelpWidget XmCMenuWidget Widget NULL CSG

XmNmenuHistory XmCMenuWidget Widget NULL CSG

XmNmenuPost XmCMenuPost String NULL CSG

XmNmnemonic XmCMnemonic KeySym NULL CSG

XmNmnemonicCharSet XmCMnemonicCharSet String XmFONTLIST_DEFAULT_TAG CSG

XmNnumColumns XmCNumColumns short 1 CSG

XmNorientation XmCOrientation unsigned char dynamic CSG

XmNpacking XmCPacking unsigned char dynamic CSG

XmNpopupEnabled XmCPopupEnabled Boolean True CSG

XmNpostFromCount XmCPostFromCount int 0 CSG

XmNpostFromList XmCPostFromList WidgetList NULL CSG

XmNradioAlwaysOne XmCRadioAlwaysOne Boolean True CSG

XmNradioBehavior XmCRadioBehavior Boolean False CSG

XmNresizeHeight XmCResizeHeight Boolean True CSG

XmNresizeWidth XmCResizeWidth Boolean True CSG

XmNrowColumnType XmCRowColumnType unsigned char XmWORK_AREA CG

XmNspacing XmCSpacing Dimension dynamic CSG

XmNsubMenuId XmCMenuWidget Widget NULL CSG

XmNtearOffMenuActivateCallback XmCCallback XtCallbackList NULL C

XmNtearOffMenuDeactivateCallback XmCCallback XtCallbackList NULL C

XmNtearOffModel XmCTearOffModel unsigned char XmTEAR_OFF_DISABLED

CSG

XmNunmapCallback XmCCallback XtCallbackList NULL C

XmNwhichButton XmCWhichButton unsigned int dynamic CSG

Name	Class	Type	Default	Access
XmNadjustLast	XmCAdjustLast	Boolean	True	CSG
XmNadjustMargin	XmCAdjustMargin	Boolean	True	CSG
XmNentryAlignment	XmCAlignment	unsigned	char	XmALIGNMENT_BEGINNING
CSG
XmNentryBorder	XmCEntryBorder	Dimension	0	CSG
XmNentryCallback	XmCCallback	XtCallbackList	NULL	C
XmNentryClass	XmCEntryClass	WidgetClass	dynamic	CSG
XmNentryVerticalAlignment	XmCVerticalAlignment	unsigned	char	XmALIGNMENT_CENTER
CSG
XmNisAligned	XmCIsAligned	Boolean	True	CSG
XmNisHomogeneous	XmCIsHomogeneous	Boolean	dynamic	CG
XmNlabelString	XmCXmString	XmString	NULL	C
XmNmapCallback	XmCCallback	XtCallbackList	NULL	C
XmNmarginHeight	XmCMarginHeight	Dimension	dynamic	CSG
XmNmarginWidth	XmCMarginWidth	Dimension	dynamic	CSG
XmNmenuAccelerator	XmCAccelerators
String	dynamic	CSG
XmNmenuHelpWidget	XmCMenuWidget	Widget	NULL	CSG
XmNmenuHistory	XmCMenuWidget	Widget	NULL	CSG
XmNmenuPost	XmCMenuPost	String	NULL	CSG
XmNmnemonic	XmCMnemonic	KeySym	NULL	CSG
XmNmnemonicCharSet	XmCMnemonicCharSet	String	XmFONTLIST_DEFAULT_TAG	CSG
XmNnumColumns	XmCNumColumns	short	1	CSG
XmNorientation	XmCOrientation	unsigned char	dynamic	CSG
XmNpacking	XmCPacking	unsigned char	dynamic	CSG
XmNpopupEnabled	XmCPopupEnabled	Boolean	True	CSG
XmNpostFromCount	XmCPostFromCount	int	0	CSG
XmNpostFromList	XmCPostFromList	WidgetList	NULL	CSG
XmNradioAlwaysOne	XmCRadioAlwaysOne	Boolean	True	CSG
XmNradioBehavior	XmCRadioBehavior	Boolean	False	CSG
XmNresizeHeight	XmCResizeHeight	Boolean	True	CSG
XmNresizeWidth	XmCResizeWidth	Boolean	True	CSG
XmNrowColumnType	XmCRowColumnType	unsigned char	XmWORK_AREA	CG
XmNspacing	XmCSpacing	Dimension	dynamic	CSG
XmNsubMenuId	XmCMenuWidget	Widget	NULL	CSG
XmNtearOffMenuActivateCallback	XmCCallback	XtCallbackList	NULL	C
XmNtearOffMenuDeactivateCallback	XmCCallback	XtCallbackList	NULL	C
XmNtearOffModel	XmCTearOffModel	unsigned	char	XmTEAR_OFF_DISABLED
CSG
XmNunmapCallback	XmCCallback	XtCallbackList	NULL	C
XmNwhichButton	XmCWhichButton	unsigned int	dynamic	CSG

XmNadjustLast

Extends the last row of children to the bottom edge of RowColumn (when XmNorientation is XmHORIZONTAL) or extends the last column to the right edge of RowColumn (when XmNorientation is XmVERTICAL). This feature is disabled by setting XmNadjustLast to False.

XmNadjustMargin

Specifies whether the inner minor margins of all items contained within the RowColumn widget are forced to the same value. The inner minor margin corresponds to the XmNmarginLeft, XmNmarginRight, XmNmarginTop, and XmNmarginBottom resources supported by XmLabel and XmLabelGadget.

A horizontal orientation causes XmNmarginTop and XmNmarginBottom for all items in a particular row to be forced to the same value; the value is the largest margin specified for one of the Label items.

A vertical orientation causes XmNmarginLeft and XmNmarginRight for all items in a particular column to be forced to the same value; the value is the largest margin specified for one of the Label items.

This keeps all text within each row or column lined up with all other text in its row or column. If the XmNrowColumnType is either XmMENU_POPUP or XmMENU_PULLDOWN and this resource is True, only button children have their margins adjusted.

XmNentryAlignment

Specifies the alignment type for children that are subclasses of XmLabel or XmLabelGadget when XmNisAligned is enabled. The following are textual alignment types:

XmALIGNMENT_BEGINNING -- the default
XmALIGNMENT_CENTER
XmALIGNMENT_END

See the description of XmNalignment in the XmLabel(Xm) man page for an explanation of these actions.

XmNentryBorder

Imposes a uniform border width upon all RowColumn's children. The default value is 0, which disables the feature.

XmNentryCallback

Disables the XmNactivateCallback and XmNvalueChangedCallback callbacks for all CascadeButton, DrawnButton, PushButton, and ToggleButton widgets and gadgets contained within the RowColumn widget. If the application supplies this resource, the XmNactivateCallback and XmNvalueChangedCallback callbacks are then revectored to the XmNentryCallback callbacks. This allows an application to supply a single callback routine for handling all items contained in a RowColumn widget. The callback reason is XmCR_ACTIVATE. If the application does not supply this resource, the XmNactivateCallback and XmNvalueChangedCallback callbacks for each item in the RowColumn widget work as normal.

The application must supply this resource when this widget is created. Changing this resource using the XtSetValues is not supported.

XmNentryClass

Specifies the only widget class that can be added to the RowColumn widget; this resource is meaningful only when the XmNisHomogeneous resource is set to True. Both widget and gadget variants of the specified class may be added to the widget.

When XmCreateRadioBox is called or when XmNrowColumnType is set to XmWORK_AREA and XmNradioBehavior is True, the default value of XmNentryClass is xmToggleButtonGadgetClass. When XmNrowColumnType is set to XmMENU_BAR, the value of XmNentryClass is forced to xmCascadeButtonWidgetClass.

XmNentryVerticalAlignment

Specifies the type of vertical alignment for children that are subclasses of XmLabel, XmLabelGadget, and XmText. This resource is invalid if XmNorientation is XmVERTICAL and XmNpacking is XmPACK_TIGHT because this layout preserves variable heights among the children. The vertical alignment types include:

XmALIGNMENT_BASELINE_BOTTOM -- causes the bottom baseline of all children in a row to be aligned. This resource is applicable only when all children in a row contain textual data.
XmALIGNMENT_BASELINE_TOP -- causes the top baseline of all children in a row to be aligned. This resource is applicable only when all children in a row contain textual data.
XmALIGNMENT_CONTENTS_BOTTOM -- causes the bottom of the contents (text or pixmap) of all children in a row to be aligned.
XmALIGNMENT_CENTER -- causes the center of all children in a row to be aligned.
XmALIGNMENT_CONTENTS_TOP -- causes the top of the contents (text or pixmap) of all children in a row to be aligned.

XmNisAligned

Specifies text alignment for each item within the RowColumn widget; this applies only to items that are subclasses of XmLabel or XmLabelGadget. However, if the item is a Label widget or gadget and its parent is either a Popup MenuPane or a Pulldown MenuPane, alignment is not performed; the Label is treated as the title within the MenuPane, and the alignment set by the application is not overridden. XmNentryAlignment controls the type of textual alignment.

XmNisHomogeneous

Indicates whether the RowColumn widget should enforce exact homogeneity among the items it contains; ifeTrue, only the widgets that are of the class indicated by XmNentryClass are allowed as children of the RowColumn widget. This is most often used when creating a MenuBar. Attempting to insert a child that is not a member of the specified class generates a warning message.

In a MenuBar the value of XmNisHomogeneous is forced to True. In an OptionMenu the value is forced to False. When XmCreateRadioBox is called the default value is True. Otherwise, the default value is False.

XmNlabelString

Points to a text string, which displays the label to one side of the selection area when XmNrowColumnType is set to XmMENU_OPTION. This resource is not meaningful for all other RowColumn types. If the application wishes to change the label after creation, it must get the LabelGadget ID (XmOptionLabelGadget) and call XtSetValues on the LabelGadget directly. The default value is no label.

XmNmapCallback

Specifies a widget-specific callback function that is invoked when the window associated with the RowColumn widget is about to be mapped. The callback reason is XmCR_MAP.

XmNmarginHeight

Specifies the amount of blank space between the top edge of the RowColumn widget and the first item in each column, and the bottom edge of the RowColumn widget and the last item in each column. The default value is 0 for Pulldown and Popup MenuPanes, and 3 pixels for other RowColumn types.

XmNmarginWidth

Specifies the amount of blank space between the left edge of the RowColumn widget and the first item in each row, and the right edge of the RowColumn widget and the last item in each row. The default value is 0 for Pulldown and Popup MenuPanes, and 3 pixels for other RowColumn types.

XmNmenuAccelerator

This resource is useful only when the RowColumn widget has been configured to operate as a Popup MenuPane or a MenuBar. The format of this resource is similar to the left side specification of a translation string, with the limitation that it must specify a key event. For a Popup MenuPane, when the accelerator is typed by the user, the Popup MenuPane is posted. For a MenuBar, when the accelerator is typed by the user, the first item in the MenuBar is highlighted, and traversal is enabled in the MenuBar. The default for a Popup MenuPane is KMenu. The default for a MenuBar is KMenuBar. The accelerator can be disabled by setting the XmNpopupEnabled resource to False.

XmNmenuHelpWidget

Specifies the widget ID for the CascadeButton, which is treated as the Help widget if XmNrowColumnType is set to XmMENU_BAR. The MenuBar always places the Help widget at the bottom right corner (in a lef to right environment) of the MenuBar. If the RowColumn widget is any type other than XmMENU_BAR, this resource is not meaningful.

XmNmenuHistory Specifies the widget ID of the last menu entry to be activated. It is also useful for specifying the current selection for an OptionMenu. If XmNrowColumnType is set to XmMENU_OPTION, the specified menu item is positioned under the cursor when the menu is displayed.

If the RowColumn widget has the XmNradioBehavior resource set to True, the widget field associated with this resource contains the widget ID of the last ToggleButton or ToggleButtonGadget to change from unselected to selected. The default value is the widget ID of the first child in the widget.

XmNmenuPost

Specifies an X event description indicating a button event that posts a menu system. The default for XmMENU_POPUP is BMenu Press. The default for XmMENU_OPTION, XmMENU_BAR, and XmWORK_AREA is BSelect Press. The XmNmenuPost resource for pulldowns should be consistent with that of top-level parent menu (although the event type is ignored). Setting this resource to BDrag Press will conflict with drag and drop operations, which use BDrag Press as a default button binding.

XmNmnemonic

This resource is useful only when XmNrowColumnType is set to XmMENU_OPTION. Specifies a keysym for a key that, when pressed by the user along with the MAlt modifier, posts the associated Pulldown MenuPane. The first character in the OptionMenu label string that exactly matches the mnemonic in the character set specified in XmNmnemonicCharSet is underlined. The user can post the menu by pressing either the shifted or the unshifted mnemonic key. The default is no mnemonic.

XmNmnemonicCharSet

Specifies the character set of the mnemonic for an OptionMenu. The default is XmFONTLIST_DEFAULT_TAG. If the RowColumn widget is any type other than XmMENU_OPTION, this resource is not meaningful.

XmNnumColumns

Specifies the number of minor dimension extensions that are made to accommodate the entries; this attribute is meaningful only when XmNpacking is set to XmPACK_COLUMN.

For vertically oriented RowColumn widgets, this attribute indicates how many columns are built; the number of entries per column is adjusted to maintain this number of columns, if possible.

For horizontally oriented RowColumn widgets, this attribute indicates how many rows are built.

The default value is 1. In an OptionMenu the value is forced to 1. The value must be greater than 0.

XmNorientation

Determines whether RowColumn layouts are row-major or column-major. In a column-major layout, the children of the RowColumn are laid out in columns top to bottom within the widget. In a row-major layout the children of the RowColumn are laid out in rows. XmVERTICAL resource value selects a column-major layout. XmHORIZONTAL resource value selects a row-major layout.

When creating a MenuBar or an OptionMenu, the default is XmHORIZONTAL. Otherwise, the default value is XmVERTICAL. The results of specifying a value of XmVERTICAL for a MenuBar are undefined.

XmNpacking

Specifies how to pack the items contained within a RowColumn widget. This can be set to XmPACK_TIGHT, XmPACK_COLUMN or XmPACK_NONE. When a RowColumn widget packs the items it contains, it determines its major dimension using the value of the XmNorientation resource.

XmPACK_TIGHT indicates that given the current major dimension (for example, vertical if XmNorientation is XmVERTICAL), entries are placed one after the other until the RowColumn widget must wrap. RowColumn wraps when there is no room left for a complete child in that dimension. Wrapping occurs by beginning a new row or column in the next available space. Wrapping continues, as often as necessary, until all of the children are laid out. In the vertical dimension (columns), boxes are set to the same width; in the horizontal dimension (rows), boxes are set to the same depth. Each entry's position in the major dimension is left unaltered (for example, XmNy is left unchanged when XmNorientation is XmVERTICAL); its position in the minor dimension is set to the same value as the greatest entry in that particular row or column. The position in the minor dimension of any particular row or column is independent of all other rows or columns.
XmPACK_COLUMN indicates that all entries are placed in identically sized boxes. The box is based on the largest height and width values of all the children widgets. The value of the XmNnumColumns resource determines how many boxes are placed in the major dimension, before extending in the minor dimension.
XmPACK_NONE indicates that no packing is performed. The x and y attributes of each entry are left alone, and the RowColumn widget attempts to become large enough to enclose all entries.

When XmCreateRadioBox is called or when XmNrowColumnType is set to XmWORK_AREA and XmNradioBehavior is True, the default value of XmNpacking is XmPACK_COLUMN. In an OptionMenu the value is initialized to XmPACK_TIGHT. Otherwise, the value defaults to XmPACK_TIGHT.

XmNpopupEnabled

Allows the menu system to enable keyboard input (accelerators and mnemonics) defined for the Popup MenuPane and any of its submenus. The Popup MenuPane needs to be informed whenever its accessibility to the user changes because posting of the Popup MenuPane is controlled by the application. The default value of this resource is True (keyboard input -- accelerators and mnemonics -- defined for the Popup MenuPane and any of its submenus is enabled).

XmNradioAlwaysOne

If True, forces the active ToggleButton or ToggleButtonGadget to be automatically selected after having been unselected (if no other toggle was activated). If False, the active toggle may be unselected. The default value is True. This resource is important only when XmNradioBehavior is True.

The application can always add and subtract toggles from RowColumn regardless of the selected/unselected state of the toggle. The application can also manage and unmanage toggle children of RowColumn at any time regardless of state. Therefore, the application can sometimes create a RowColumn that has XmNradioAlwaysOne set to True and none of the toggle children selected. The result is undefined if the value of this resource is True and the application sets more than one ToggleButton at a time.

XmNradioBehavior

Specifies a Boolean value that when True, indicates that the RowColumn widget should enforce a RadioBox-type behavior on all of its children that are ToggleButtons or ToggleButtonGadgets.

When the value of this resource is True, XmNindicatorType defaults to XmONE_OF_MANY for ToggleButton and ToggleButtonGadget children.

RadioBox behavior dictates that when one toggle is selected and the user selects another toggle, the first toggle is unselected automatically. The RowColumn usually does not enforce this behavior if the application, rather than the user, changes the state of a toggle. The RowColumn does enforce this behavior if a toggle child is selected using XmToggleButtonSetState or XmToggleButtonGadgetSetState with a notify argument of True.

When XmCreateRadioBox is called the default value of XmNradioBehavior is True. Otherwise, the default value is False.

XmNresizeHeight

Requests a new height if necessary, when set to True. When set to False, the widget does not request a new height regardless of any changes to the widget or its children.

XmNresizeWidth

Requests a new width if necessary, when set to True. When set to False, the widget does not request a new width regardless of any changes to the widget or its children.

XmNrowColumnType

Specifies the type of RowColumn widget to be created. It is a non-standard resource that cannot be changed after it is set. If an application uses any of the convenience routines, except XmCreateRowColumn, this resource is automatically forced to the appropriate value
by the convenience routine. If an application uses the Xt Intrinsics API to create its RowColumn widgets, it must specify this resource itself. The set of possible settings for this resource are:

XmWORK_AREA -- the default
XmMENU_BAR
XmMENU_PULLDOWN
XmMENU_POPUP
XmMENU_OPTION

This resource cannot be changed after the RowColumn widget is created. Any changes attempted through XtSetValues are ignored.

The value of this resource is used to determine the value of a number of other resources. The descriptions of RowColumn resources explain this when it is the case. The resource XmNnavigationType, inherited from XmManager, is changed to XmNONE if XmNrowColumnType is XmMENU_OPTION.

XmNspacing

Specifies the horizontal and vertical spacing between items contained within the RowColumn widget. The default value is 3 pixels for XmOPTION_MENU and XmWORK_AREA and 0 for other RowColumn types.

XmNsubMenuId

Specifies the widget ID for the Pulldown MenuPane to be associated with an OptionMenu. This resource is useful only when XmNrowColumnType is set to XmMENU_OPTION. The default value is NULL.

XmNtearOffMenuActivateCallback

Specifies the callback list that notifies the application when the tear-off MenuPane is about to be activated. It precedes the tear-off's map callback.

Use this resource when your application has shared MenuPanes and when the torn-off menu can have two or more parents that can have opposing sensitivity states for the same menu item. This resource enables the application to track whether a menu item is sensitive or insensitive and to set the state to the original parent's menu item state when the torn-off menu is reposted. The application can use XmGetPostedFromWidget to determine from which parent the menu was torn. The callback reason is XmCR_TEAR_OFF_ACTIVATE. The default is NULL.

XmNtearOffMenuDeactivateCallback.

Specifies the callback list that notifies the application when the tear-off MenuPane is about to be deactivated. It follows the tear-off's unmap callback.

XmNtearOffModel

Indicates whether tear-off functionality is enabled or disabled when XmNrowColumnType is set to XmMENU_PULLDOWN or XmMENU_POPUP. The values are: XmTEAR_OFF_ENABLED or XmTEAR_OFF_DISABLED (default value). This resource is invalid for type XmMENU_OPTION; however, it does affect any pulldown submenus within an OptionMenu. The function XmRepTypeInstallTearOffModelConverter installs a resource converter for this resource.

XmNunmapCallback

Specifies a list of callbacks that is called after the window associated with the RowColumn widget has been unmapped. The callback reason is XmCR_UNMAP. The default value is NULL.

XmNwhichButton

This resource is obsolete; it has been replaced by XmNmenuPost and is present for compatibility with older releases of 1/Motif.

XmRowColumn constraint resource set

Name Class Type Default Access

XmNpositionIndex XmCPositionIndex short XmLAST_POSITION CSG

Name	Class	Type	Default	Access
XmNpositionIndex	XmCPositionIndex	short	XmLAST_POSITION	CSG

XmNpositionIndex: Specifies the position of the widget in its parent's list of children (the value of the XmNchildren resource). The value is an integer that is no less than zero and no greater than the number of children in the list at the time the value is specified. A value of zero means that the child is placed at the beginning of the list. The value can also be specified as XmLAST_POSITION (the default), which means that the child is placed at the end of the list. Any other value is ignored. XtGetValues returns the position of the widget in its parent's child list at the time of the call to XtGetValues.
When a widget is inserted into its parent's child list, the positions of any existing children that are greater than or equal to the specified widget's XmNpositionIndex are increased by one. The effect of a call to XtSetValues for XmNpositionIndex is to remove the specified widget from its parent's child list, decrease by one the positions of any existing children that are greater than the specified widget's former position in the list, and then insert the specified widget into its parent's child list as described in the preceding sentence.

Simple menu creation resource set

Name Class Type Default Access

XmNbuttonAccelerators XmCButtonAccelerators StringTable NULL C

XmNbuttonAcceleratorText XmCButtonAcceleratorText XmStringTable NULL C

XmNbuttonCount XmCButtonCount int 0 C

XmNbuttonMnemonicCharSets XmCButtonMnemonicCharSets XmStringCharSetTable NULL C

XmNbuttonMnemonics XmCButtonMnemonics XmKeySymTable NULL C

XmNbuttons XmCButtons XmStringTable NULL C

XmNbuttonSet XmCButtonSet int -1 C

XmNbuttonType XmCButtonType XmButtonTypeTable NULL C

XmNoptionLabel XmCOptionLabel XmString NULL C

XmNoptionMnemonic XmCOptionMnemonic KeySym NULL C

XmNpostFromButton XmCPostFromButton int -1 C

XmNsimpleCallback XmCCallback XtCallbackProc NULL C

Name	Class	Type	Default	Access
XmNbuttonAccelerators	XmCButtonAccelerators	StringTable	NULL	C
XmNbuttonAcceleratorText	XmCButtonAcceleratorText	XmStringTable	NULL	C
XmNbuttonCount	XmCButtonCount	int	0	C
XmNbuttonMnemonicCharSets	XmCButtonMnemonicCharSets	XmStringCharSetTable	NULL	C
XmNbuttonMnemonics	XmCButtonMnemonics	XmKeySymTable	NULL	C
XmNbuttons	XmCButtons	XmStringTable	NULL	C
XmNbuttonSet	XmCButtonSet	int	-1	C
XmNbuttonType	XmCButtonType	XmButtonTypeTable	NULL	C
XmNoptionLabel	XmCOptionLabel	XmString	NULL	C
XmNoptionMnemonic	XmCOptionMnemonic	KeySym	NULL	C
XmNpostFromButton	XmCPostFromButton	int	-1	C
XmNsimpleCallback	XmCCallback	XtCallbackProc	NULL	C

XmNbuttonAccelerators

This resource is for use with the simple menu creation routines. It specifies a list of accelerators for the buttons created. The list contains one element for each button, separator, and title created.

XmNbuttonAcceleratorText

This resource is for use with the simple menu creation routines. It specifies a list of compound strings to display for the accelerators for the buttons created. The list contains one element for each button, separator, and title created.

XmNbuttonCount

This resource is for use with the simple menu creation routines. It specifies the total number of menu buttons, separators, and titles to create. The value must not be negative.

XmNbuttonMnemonicCharSets

This resource is for use with the simple menu creation routines. It specifies a list of character sets with which button mnemonics are to be displayed. The list contains one element for each button, separator, and title created. The default is determined dynamically depending on the locale of the widget.

XmNbuttonMnemonics

This resource is for use with the simple menu creation routines. It specifies a list of mnemonics for the buttons created. The list contains one element for each button, separator, and title created.

XmNbuttons

This resource is for use with the simple menu creation routines. It specifies a list of compound strings to use as labels for the buttons created. The list contains one element for each button, separator, and title created.

XmNbuttonSet

This resource is for use with the simple menu creation routines. It specifies which button of a RadioBox or OptionMenu Pulldown submenu is initially set. The value is an integer n indicating the nth ToggleButtonGadget specified for a RadioBox or the nth PushButtonGadget specified for an OptionMenu Pulldown submenu. The first button specified is number 0. The value must not be negative.

XmNbuttonType

This resource is for use with the simple menu creation routines. It specifies a list of button types associated with the buttons to be created. The list contains one element for each button, separator, and title created. If this resource is not specified, each button in a MenuBar is a CascadeButtonGadget, each button in a RadioBox or CheckBox is a ToggleButtonGadget, and each button in any other type of RowColumn widget is a PushButtonGadget. Each button type is of type XmButtonType, an enumeration with the following possible values:

XmCASCADEBUTTON -- Specifies a CascadeButtonGadget for a MenuBar, Popup MenuPane, or Pulldown MenuPane.
XmCHECKBUTTON -- Specifies a ToggleButtonGadget for a CheckBox, Popup MenuPane, or Pulldown MenuPane.
XmDOUBLE_SEPARATOR -- Specifies a SeparatorGadget for a Popup MenuPane, Pulldown MenuPane, or OptionMenu Pulldown submenu. The separator type is XmDOUBLE_LINE.
XmPUSHBUTTON -- Specifies a PushButtonGadget for a Popup MenuPane, Pulldown MenuPane, or OptionMenu Pulldown submenu.
XmRADIOBUTTON -- Specifies a ToggleButtonGadget for a RadioBox, Popup MenuPane, or Pulldown MenuPane.
XmSEPARATOR -- Specifies a SeparatorGadget for a Popup MenuPane, Pulldown MenuPane, or OptionMenu Pulldown submenu.
XmTITLE -- Specifies a LabelGadget used as a title for a Popup MenuPane or Pulldown MenuPane.

XmNoptionLabel

This resource is for use with the simple menu creation routines. It specifies a compound string for the label string to be used on the left side of an OptionMenu.

XmNoptionMnemonic

This resource is for use with the simple menu creation routines. It specifies a keysym for a key that, when pressed by the user along with the MAlt modifier, posts the associated Pulldown MenuPane for an OptionMenu.

XmNpostFromButton

This resource is for use with the simple menu creation routines. For a Pulldown MenuPane, it specifies the button in the parent to which the submenu is attached. The menu is then posted from this button. The value is an integer n indicating the nth CascadeButton or CascadeButtonGadget specified for the parent of the Pulldown MenuPane. The first button specified is number 0. The value must not be negative.

XmNsimpleCallback

This resource is for use with the simple menu creation routines. It specifies a callback procedure to be called when a button is activated or when its value changes. This callback function is added to each button after creation. For a CascadeButtonGadget or a PushButtonGadget, the callback is added as the button's XmNactivateCallback, and it is called when the button is activated. For a ToggleButtonGadget, the callback is added as the button's XmNvalueChangedCallback, and it is called when the button's value changes. The button number is passed in the client_data field.

Inherited resources

RowColumn inherits behavior and resources from the following named superclasses. For a complete description of each resource, refer to the man page for that superclass.

XmManager resource set

Name Class Type Default Access

XmNbottomShadowColor XmCBottomShadowColor Pixel dynamic CSG

XmNbottomShadowPixmap XmCBottomShadowPixmap Pixmap XmUNSPECIFIED_PIXMAP CSG

XmNforeground XmCForeground Pixel dynamic CSG

XmNhelpCallback XmCCallback XtCallbackList NULL C

XmNhighlightColor XmCHighlightColor Pixel dynamic CSG

XmNhighlightPixmap XmCHighlightPixmap Pixmap dynamic CSG

XmNinitialFocus XmCInitialFocus Widget NULL CSG

XmNnavigationType XmCNavigationType XmNavigationType dynamic CSG

XmNshadowThickness XmCShadowThickness Dimension dynamic CSG

XmNstringDirection XmCStringDirection XmStringDirection dynamic CG

XmNtopShadowColor XmCTopShadowColor Pixel dynamic CSG

XmNtopShadowPixmap XmCTopShadowPixmap Pixmap dynamic CSG

XmNtraversalOn XmCTraversalOn Boolean dynamic CSG

XmNunitType XmCUnitType unsigned char dynamic CSG

XmNuserData XmCUserData XtPointer NULL CSG

Name	Class	Type	Default	Access
XmNbottomShadowColor	XmCBottomShadowColor	Pixel	dynamic	CSG
XmNbottomShadowPixmap	XmCBottomShadowPixmap	Pixmap	XmUNSPECIFIED_PIXMAP	CSG
XmNforeground	XmCForeground	Pixel	dynamic	CSG
XmNhelpCallback	XmCCallback	XtCallbackList	NULL	C
XmNhighlightColor	XmCHighlightColor	Pixel	dynamic	CSG
XmNhighlightPixmap	XmCHighlightPixmap	Pixmap	dynamic	CSG
XmNinitialFocus	XmCInitialFocus	Widget	NULL	CSG
XmNnavigationType	XmCNavigationType	XmNavigationType	dynamic	CSG
XmNshadowThickness	XmCShadowThickness	Dimension	dynamic	CSG
XmNstringDirection	XmCStringDirection	XmStringDirection	dynamic	CG
XmNtopShadowColor	XmCTopShadowColor	Pixel	dynamic	CSG
XmNtopShadowPixmap	XmCTopShadowPixmap	Pixmap	dynamic	CSG
XmNtraversalOn	XmCTraversalOn	Boolean	dynamic	CSG
XmNunitType	XmCUnitType	unsigned char	dynamic	CSG
XmNuserData	XmCUserData	XtPointer	NULL	CSG

Composite resource set

Name Class Type Default Access

XmNchildren XmCReadOnly WidgetList NULL G

XmNinsertPosition XmCInsertPosition XtOrderProc default procedure CSG

XmNnumChildren XmCReadOnly Cardinal 0 G

Name	Class	Type	Default	Access
XmNchildren	XmCReadOnly	WidgetList	NULL	G
XmNinsertPosition	XmCInsertPosition	XtOrderProc	default procedure	CSG
XmNnumChildren	XmCReadOnly	Cardinal	0	G

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

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

Callback information

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

   typedef struct
   {
   	int	reason;
   	XEvent	* event;
   	Widget	widget;
   	char	* data;
   	char	* callbackstruct;
   } XmRowColumnCallbackStruct;

reason: Indicates why the callback was invoked
event: Points to the XEvent that triggered the callback

The following fields apply only when the callback reason is XmCR_ACTIVATE; for all other callback reasons, these fields are set to NULL. The XmCR_ACTIVATE callback reason is generated only when the application has supplied an entry callback, which overrides any activation callbacks registered with the individual RowColumn items.

widget: Is set to the widget ID of the RowColumn item that has been activated
data: Contains the client-data value supplied by the application when the RowColumn item's activation callback was registered
callbackstruct: Points to the callback structure generated by the RowColumn item's activation callback

Translations

XmRowColumn translations depend on the value of the XmNrowColumnType resource.

If XmNrowColumnType is set to XmWORK_AREA, XmRowColumn inherits translations from XmManager.

If XmNrowColumnType is set to XmMENU_OPTION, XmRowColumn inherits traversal, KActivate, and KCancel translations from XmManager and has the additional translations listed below. These translations may not directly correspond to a translation table.

   BSelect Press:          MenuBtnDown()
   BSelect Release:        MenuBtnUp()
   KSelect:                ManagerGadgetSelect()
   KHelp:                  Help()

The translations for XmRowColumn if XmNrowColumnType is set to XmMENU_BAR XmMENU_PULLDOWN, or XmMENU_POPUP are listed below. In a Popup menu system, BMenu also performs the BSelect actions. These translations may not directly correspond to a translation table.

   BSelect Press:          MenuBtnDown()
   BSelect Release:        MenuBtnUp()
   KActivate:              ManagerGadgetSelect()
   KSelect:                ManagerGadgetSelect()
   MAny KCancel:           MenuGadgetEscape()
   KHelp:                  Help()
   KLeft:                  MenuGadgetTraverseLeft()
   KRight:                 MenuGadgetTraverseRight()
   KUp:                    MenuGadgetTraverseUp()
   KDown:                  MenuGadgetTraverseDown()

Action routines

The XmRowColumn action routines are described below:

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.

ManagerGadgetSelect():

When a gadget child of the menu has the focus, invokes the gadget child's behavior associated with KSelect. This generally has the effect of unposting the menu hierarchy and arming and activating the gadget, except that for a CascadeButtonGadget with a submenu, it posts the submenu.

MenuBtnDown():

When a gadget child of the menu has the focus, invokes the gadget child's behavior associated with BSelect Press. This generally has the effect of unposting any menus posted by the parent menu, enabling mouse traversal in the menu, and arming the gadget. For a CascadeButtonGadget with a submenu, it also posts the associated submenu.

MenuBtnUp():

When a gadget child of the menu has the focus, invokes the gadget child's behavior associated with BSelect Release. This generally has the effect of unposting the menu hierarchy and activating the gadget, except that for a CascadeButtonGadget with a submenu, it posts the submenu and enables keyboard traversal in the menu.

MenuGadgetEscape():

In a toplevel Pulldown MenuPane from a MenuBar, unposts the menu, disarms the MenuBar CascadeButton and the MenuBar, and, when the shell's keyboard focus policy is XmEXPLICIT, 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, when the shell's keyboard focus policy is XmEXPLICIT, restores keyboard focus to the widget from which the menu was posted. In a TearOff MenuPane that has no submenus posted, dismisses the menu; otherwise, if one or more submenus are posted, unposts the last menu pane.

MenuGadgetTraverseDown():

If the current menu item has a submenu and is in a MenuBar, then this action posts the submenu, disarms the current menu item, and arms the submenu's first traversable menu item.

If the current menu item is in a MenuPane, then this action disarms the current menu item and arms the item below it. This action wraps within the MenuPane. When the current menu item is at the MenuPane's bottom edge, then this action wraps to the topmost menu item in the column to the right, if one exists. When the current
menu item is at the bottom, rightmost corner of the MenuPane, then this action wraps to the tear-off control, if present, or to the top, leftmost menu item.

MenuGadgetTraverseLeft():

When the current menu item is in a MenuBar, then this action disarms the current item and arms the MenuBar item to the left. This action wraps within the MenuBar.

In MenuPanes, if the current menu item is not at the left edge of a MenuPane, this action disarms the current item and arms the item to its left. If the current menu item is at the left edge of a submenu attached to a MenuBar item, then this action unposts the submenu and traverses to the MenuBar item to the left, wrapping if necessary. If that MenuBar item has a submenu, it posts the submenu and arms the first traversable item in the submenu. If the current menu item is at the left edge of a submenu not directly attached to a MenuBar item, then this action unposts the current submenu only.

In Popup or Torn-off MenuPanes, when the current menu item is at the left edge, this action wraps within the MenuPane. If the current menu item is at the left edge of the MenuPane and not in the top row, this action wraps to the rightmost menu item in the row above. If the current menu item is in the upper, leftmost corner, this action wraps to the tear-off control, if present, or else it wraps to the bottom, rightmost menu item in the MenuPane.

MenuGadgetTraverseRight():

If the current menu item is in a MenuBar, then this action disarms the current item and arms the MenuBar item to the right. This action wraps within the MenuBar.

In MenuPanes, if the current menu item is a CascadeButton, then this action posts its associated submenu. If the current menu item is not a CascadeButton and is not at the right edge of a MenuPane, this action disarms the current item and arms the item to its right, wrapping if necessary. If the current menu item is not a CascadeButton and is at the right edge of a submenu that is a descendent of a MenuBar, then this action unposts all submenus and traverses to the MenuBar item to the right. If that MenuBar item has a submenu, it posts the submenu and arms the submenu's first traversable item.

In Popup or Torn-off menus, if the current menu item is not a CascadeButton and is at the right edge of a row (except the bottom row), this action wraps to the leftmost menu item in the row below. If the current menu item is not a CascadeButton and is in the bottom, rightmost corner of a Popup or Pulldown MenuPane, this action wraps to the tear-off control, if present, or else it wraps to the top, leftmost menu item of the MenuPane.

MenuGadgetTraverseUp():

When the current menu item is in a MenuPane, then this action disarms the current menu item and arms the item above it. This action wraps within the MenuPane. When the current menu item is at the MenuPane's top edge, then this action wraps to the bottommost menu item in the column to the left, if one exists. When the current menu item is at the top, leftmost corner of the MenuPane, then this action wraps to the tear-off control, if present, or to the bottom, rightmost menu item.

Related behavior

The following menu functions are available.

KMenuBar:: In any non-popup descendant of a MenuBar's parent, excluding the MenuBar itself, this action enables keyboard traversal and moves keyboard focus to the first item in the MenuBar. In the MenuBar or any menu cascaded from it, this action unposts the menu hierarchy and, when the shell's keyboard focus policy is XmEXPLICIT, restores focus to the widget that had the focus when the menu system was entered.
KMenu:: Pops up the menu associated with the control that has the keyboard focus. Enables keyboard traversal in the menu. In the Popup menu system or any menu cascaded from it, this action unposts the menu hierarchy and, when the shell's keyboard focus policy is XmEXPLICIT, restores focus to the widget that had the focus when the menu system was entered.

Virtual bindings

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