XmManager(Xm)

XmManager -- the Manager widget class

Syntax

#include <Xm/Xm.h>

Description

Manager is a widget class used as a supporting superclass for other widget classes. It supports the visual resources, graphics contexts, and traversal resources necessary for the graphics and traversal mechanisms.

Classes

Manager inherits behavior and resources from Core, Composite, and Constraint classes.

The class pointer is xmManagerWidgetClass.

The class name is XmManager.

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).

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 XmTAB_GROUP CSG

XmNshadowThickness XmCShadowThickness Dimension 0 CSG

XmNstringDirection XmCStringDirection XmStringDirection dynamic CG

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

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	XmTAB_GROUP	CSG
XmNshadowThickness	XmCShadowThickness	Dimension	0	CSG
XmNstringDirection	XmCStringDirection	XmStringDirection	dynamic	CG
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

XmNbottomShadowColor

Specifies the color to use to draw the bottom and right sides of the border shadow. This color is used if the XmNbottomShadowPixmap resource is NULL.

XmNbottomShadowPixmap

Specifies the pixmap to use to draw the bottom and right sides of the border shadow.

XmNforeground

Specifies the foreground drawing color used by manager widgets.

XmNhelpCallback

Specifies the list of callbacks that are called when the help key sequence is pressed. The reason sent by this callback is XmCR_HELP.

XmNhighlightColor

Specifies the color of the highlighting rectangle. This color is used if the highlight pixmap resource is XmUNSPECIFIED_PIXMAP.

XmNhighlightPixmap

Specifies the pixmap used to draw the highlighting rectangle.

XmNinitialFocus

Specifies the ID of a widget descendant of the manager. The widget must meet these conditions:

The widget must be either a tab group or a non-tab-group widget that can receive keyboard focus. For the definition of a tab group, see the description of the Manager, Primitive, and Gadget XmNnavigationType resources. In general a widget can receive keyboard focus when it is a primitive, a gadget, or a manager (such as a DrawingArea with no traversable children) that acts as a primitive.
The widget must not be a descendant of a tab group that is itself a descendant of the manager. That is, the widget cannot be contained within a tab group that is nested inside the manager.
The widget and its ancestors must have a value of True for their XmNtraversalOn resources.

If the widget does not meet these conditions, XmNinitialFocus is treated as if the value were NULL.

This resource is meaningful only when the nearest shell ancestor's XmNkeyboardFocusPolicy is XmEXPLICIT. It is used to determine which widget receives focus in these situations:

When the manager is the child of a shell and the shell hierarchy receives focus for the first time
When focus is inside the shell hierarchy, the manager is a composite tab group, and the user traverses to the manager via the keyboard

Focus is then determined as follows:

If XmNinitialFocus is a traversable non-tab-group widget, that widget receives focus.
If XmNinitialFocus is a traversable tab group, that tab group receives focus. If that tab group is a composite with descendant tab groups or traversable non-tab-group widgets, these procedures are used recursively to assign focus to a descendant of that tab group.
If XmNinitialFocus is NULL, the first traversable non-tab-group widget that is not contained within a nested tab group receives focus.
If XmNinitialFocus is NULL and no traversable non-tab-group widget exists, the first traversable tab group that is not contained within a nested tab group receives focus. If that tab group is a composite with descendant tab groups or traversable non-tab-group widgets, these procedures are used recursively to assign focus to a descendant of that tab group.

If a shell hierarchy regains focus after losing it, focus returns to the widget that had the focus at the time it left the hierarchy.

The use of XmNinitialFocus is undefined if the manager is a MenuBar, PulldownMenu, PopupMenu, or OptionMenu.

XmNnavigationType

Determines whether the widget is a tab group.

XmNONE indicates that the widget is not a tab group.
XmTAB_GROUP indicates that the widget is a tab group, unless another widget in the hierarchy has an XmNnavigationType of XmEXCLUSIVE_TAB_GROUP.
XmSTICKY_TAB_GROUP indicates that the widget is a tab group, even if another widget in the hierarchy has an XmNnavigationType of XmEXCLUSIVE_TAB_GROUP.
XmEXCLUSIVE_TAB_GROUP indicates that the widget is a tab group and that widgets in the hierarchy whose XmNnavigationType is XmTAB_GROUP are not tab groups.

When a parent widget has an XmNnavigationType of XmEXCLUSIVE_TAB_GROUP, traversal of non-tab-group widgets within the group is based on the order of those widgets in their parent's XmNchildren list.

When any widget in a hierarchy has an XmNnavigationType of XmEXCLUSIVE_TAB_GROUP, traversal of tab groups in the hierarchy proceeds to widgets in the order in which their XmNnavigationType resources were specified as XmEXCLUSIVE_TAB_GROUP or XmSTICKY_TAB_GROUP, whether by creating the widgets with that value, by calling XtSetValues, or by calling XmAddTabGroup.

XmNshadowThickness

Specifies the thickness of the drawn border shadow. XmBulletinBoard and its descendants set this value dynamically. If the widget is a top level window, this value is set to 1. If it is not a top level window, this value is set to 0.

XmNstringDirection

Specifies the initial direction to draw strings. The values are XmSTRING_DIRECTION_L_TO_R and XmSTRING_DIRECTION_R_TO_L. The value of this resource is determined at creation time. If the widget's parent is a manager, this value is inherited from the widget's parent, otherwise it is set to XmSTRING_DIRECTION_L_TO_R.

XmNtopShadowColor

Specifies the color to use to draw the top and left sides of the border shadow. This color is used if the XmNtopShadowPixmap resource is NULL.

XmNtopShadowPixmap

Specifies the pixmap to use to draw the top and left sides of the border shadow.

XmNtraversalOn

Specifies whether traversal is activated for this widget.

XmNunitType

Provides the basic support for resolution independence. It defines the type of units a widget uses with sizing and positioning resources. If the widget's parent is a subclass of XmManager and if the XmNunitType resource is not explicitly set, it defaults to the unit type of the parent widget. If the widget's parent is not a subclass of XmManager, the resource has a default unit type of XmPIXELS.

XmNunitType can have the following values:

XmPIXELS -- all values provided to the widget are treated as normal pixel values.
Xm100TH_MILLIMETERS -- all values provided to the widget are treated as 1/100 millimeter.
Xm1000TH_INCHES -- all values provided to the widget are treated as 1/1000 inch.
Xm100TH_POINTS -- all values provided to the widget are treated as 1/100 point. A point is a unit used in text processing applications and is defined as 1/72 inch.
Xm100TH_FONT_UNITS -- all values provided to the widget are treated as 1/100 of a font unit. A font unit has horizontal and vertical components. These are the values of the XmScreen resources XmNhorizontalFontUnit and XmNverticalFontUnit.

XmNuserData

Allows the application to attach any necessary specific data to the widget. This is an internally unused resource.

Dynamic color defaults

The foreground, background, top shadow, bottom shadow, and highlight color resources are dynamically defaulted. If no color data is specified, the colors are automatically generated. On a single-plane system, a black and white color scheme is generated. Otherwise, four colors are generated, which display the correct shading for the 3-D visuals. If the background is the only color specified for a widget, the top shadow and bottom shadow colors are generated to give the 3-D appearance. Foreground and highlight colors are generated to provide sufficient contrast with the background color.

Colors are generated only at creation. Resetting the background through XtSetValues does not regenerate the other colors. XmChangeColor can be used to recalculate all associated colors based on a new background color.

Inherited resources

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

Composite resource set

Name Class Type Default Access

XmNchildren XmCReadOnly WidgetList NULL G

XmNinsertPosition XmCInsertPosition XtOrderProc NULL CSG

XmNnumChildren XmCReadOnly Cardinal 0 G

Name	Class	Type	Default	Access
XmNchildren	XmCReadOnly	WidgetList	NULL	G
XmNinsertPosition	XmCInsertPosition	XtOrderProc	NULL	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;
   } XmAnyCallbackStruct;

reason: Indicates why the callback was invoked. For this callback, reason is set to XmCR_HELP.
event: Points to the XEvent that triggered the callback.

Translations

The following set of translations are used by Manager widgets that have Gadget children. Since Gadgets cannot have translations associated with them, it is the responsibility of the Manager widget to intercept the events of interest and pass them to any Gadget child with focus. These events are ignored if no Gadget child has the focus. These translations may not directly correspond to a translation table.

   BAny Motion:		ManagerGadgetButtonMotion()
   BSelect Press:		ManagerGadgetArm()
   BSelect Click:		ManagerGadgetActivate()
   BSelect Release:	ManagerGadgetActivate()
   BSelect Press 2+:	ManagerGadgetMultiArm()
   BSelect Release 2+:	ManagerGadgetMultiActivate()
   BDrag Press:		ManagerGadgetDrag()

   KSelect:		ManagerGadgetSelect()
   KActivate:		ManagerParentActivate()

   KCancel:		ManagerParentCancel()

   KPrevField:		ManagerGadgetPrevTabGroup()
   KNextField:		ManagerGadgetNextTabGroup()

   KUp:			ManagerGadgetTraverseUp()
   KDown:			ManagerGadgetTraverseDown()
   KLeft:			ManagerGadgetTraverseLeft()
   KRight:			ManagerGadgetTraverseRight()

   KBeginLine:		ManagerGadgetTraverseHome()

   KHelp:			ManagerGadgetHelp()

   KAny:			ManagerGadgetKeyInput()

Action routines

The XmManager action routines are described below:

ManagerGadgetActivate():: Causes the current gadget to be activated.
ManagerGadgetArm():: Causes the current gadget to be armed.
ManagerGadgetButtonMotion():: Causes the current gadget to process a mouse motion event.
ManagerGadgetDrag():: Drags the contents of a gadget label, identified by pressing BDrag. This action creates 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 gadgets used in a menu system.
ManagerGadgetHelp():: Calls the callbacks for the current gadget's 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.
ManagerGadgetKeyInput():: Causes the current gadget to process a keyboard event.
ManagerGadgetMultiActivate():: Causes the current gadget to process a multiple mouse click.
ManagerGadgetMultiArm():: Causes the current gadget to process a multiple mouse button press.
ManagerGadgetNextTabGroup():: Traverses to the first item in the next tab group. If the current tab group is the last entry in the tab group list, it wraps to the beginning of the tab group list.
ManagerGadgetPrevTabGroup():: Traverses to the first item in the previous tab group. If the beginning of the tab group list is reached, it wraps to the end of the tab group list.
ManagerGadgetSelect():: Causes the current gadget to be armed and activated.
ManagerGadgetTraverseDown():: Traverses to the next item below the current gadget in the current tab group, wrapping if necessary.
ManagerGadgetTraverseHome():: Traverses to the first widget or gadget in the current tab group.
ManagerGadgetTraverseLeft():: Traverses to the next item to the left of the current gadget in the current tab group, wrapping if necessary.
ManagerGadgetTraverseNext():: Traverses to the next item in the current tab group, wrapping if necessary.
ManagerGadgetTraversePrev():: Traverses to the previous item in the current tab group, wrapping if necessary.
ManagerGadgetTraverseRight():: Traverses to the next item to the right of the current gadget in the current tab group, wrapping if necessary.
ManagerGadgetTraverseUp():: Traverses to the next item above the current gadget in the current tab group, wrapping if necessary.
ManagerParentActivate():: If the parent is a manager, passes the KActivate event received by the current widget/gadget to its parent.
ManagerParentCancel():: If the parent is a manager, passes the KCancel event received by the current widget/gadget to its parent.

Additional behavior

This widget has the additional behavior described below:

<FocusIn>:: If the shell's keyboard focus policy is XmEXPLICIT and the event occurs in a gadget, causes the gadget to be highlighted and to take the focus.
<FocusOut>:: If the shell's keyboard focus policy is XmEXPLICIT and the event occurs in a gadget, causes the gadget to be unhighlighted and to lose the focus.

Virtual bindings

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