Composite(3X) Composite(3X)
NAME
Composite - The Composite widget class
SYNOPSIS
#include <Xm/Xm.h>
DESCRIPTION
Composite widgets are intended to be containers for other widgets and can have an arbitrary number of children. Their responsibilities
(implemented either directly by the widget class or indirectly by Intrinsics functions) include: Overall management of children from cre-
ation to destruction. Destruction of descendants when the composite widget is destroyed. Physical arrangement (geometry management) of a
displayable subset of managed children. Mapping and unmapping of a subset of the managed children. Instances of composite widgets need to
specify the order in which their children are kept. For example, an application may want a set of command buttons in some logical order
grouped by function, and it may want buttons that represent filenames to be kept in alphabetical order.
Classes
Composite inherits behavior and resources from Core.
The class pointer is compositeWidgetClass.
The class name is Composite.
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).
Composite Resource Set
Class: XmCReadOnly Default: NULL Type: WidgetList Access: G Class: XmCInsertPosition Default: NULL Type: XtOrderProc Access: CSG Class:
XmCReadOnly Default: 0 Type: Cardinal Access: G
A read-only list of the children of the widget. Points to the XtOrderProc function described below. A read-only resource specifying the
length of the list of children in XmNchildren.
The following procedure pointer in a composite widget instance is of type XtOrderProc:
Cardinal (* XtOrderProc) (widget)
Widget w;
Specifies the widget.
Composite widgets that allow clients to order their children (usually homogeneous boxes) can call their widget instance's insert_position
procedure from the class's insert_child procedure to determine where a new child should go in its children array. Thus, a client of a com-
posite class can apply different sorting criteria to widget instances of the class, passing in a different insert_position procedure when
it creates each composite widget instance.
The return value of the insert_position procedure indicates how many children should go before the widget. Returning zero indicates that
the widget should go before all other children; returning num_children indicates that it should go after all other children. The default
insert_position function returns num_children and can be overridden by a specific composite widget's resource list or by the argument list
provided when the composite widget is created.
Inherited Resources
Composite inherits behavior and resources from the following superclass. For a complete description of each resource, refer to the manual
page for that superclass.
Core Resource Set
Class: XmCAccelerators Default: dynamic Type: XtAccelerators Access: CSG Class: XmCSensitive Default: dynamic Type: Boolean Access: G
Class: XmCBackground Default: dynamic Type: Pixel Access: CSG Class: XmCPixmap Default: XmUNSPECIFIED_PIXMAP Type: Pixmap Access: CSG
Class: XmCBorderColor Default: XtDefaultForeground Type: Pixel Access: CSG Class: XmCPixmap Default: XmUNSPECIFIED_PIXMAP Type: Pixmap
Access: CSG Class: XmCBorderWidth Default: 1 Type: Dimension Access: CSG Class: XmCColormap Default: dynamic Type: Colormap Access: CG
Class: XmCDepth Default: dynamic Type: int Access: CG Class: XmCCallback Default: NULL Type: XtCallbackList Access: C Class: XmCHeight
Default: dynamic Type: Dimension Access: CSG Class: XmCInitialResourcesPersistent Default: True Type: Boolean Access: C Class: XmCMapped-
WhenManaged Default: True Type: Boolean Access: CSG Class: XmCScreen Default: dynamic Type: Screen * Access: CG Class: XmCSensitive
Default: True Type: Boolean Access: CSG Class: XmCTranslations Default: dynamic Type: XtTranslations Access: CSG Class: XmCWidth Default:
dynamic Type: Dimension Access: CSG Class: XmCPosition Default: 0 Type: Position Access: CSG Class: XmCPosition Default: 0 Type: Posi-
tion Access: CSG
Translations
There are no translations for Composite.
SEE ALSO
Core(3X)
Composite(3X)