Composite(3X) SDK X11 R4.11MU05 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 creation 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 |
+------------------+-------------------+-------------+---------+--------+
|Name | Class | Type | Default | Access |
+------------------+-------------------+-------------+---------+--------+
+------------------+-------------------+-------------+---------+--------+
|XmNchildren | XmCReadOnly | WidgetList | NULL | G |
+------------------+-------------------+-------------+---------+--------+
|XmNinsertPosition | XmCInsertPosition | XtOrderProc | NULL | CSG |
+------------------+-------------------+-------------+---------+--------+
|XmNnumChildren | XmCReadOnly | Cardinal | 0 | G |
+------------------+-------------------+-------------+---------+--------+
XmNchildren
A read-only list of the children of the widget.
XmNinsertPosition
Points to the XtOrderProc function described below.
XmNnumChildren
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;
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
composite 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 |
+------------------------------+-------------------------------+----------------+----------------------+--------+
|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 | 1 | 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 |
+------------------------------+-------------------------------+----------------+----------------------+--------+
Translations
There are no translations for Composite.
RELATED INFORMATION
Core(3X).
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