1 /***********************************************************
3 Copyright 1987, 1988, 1994, 1998 The Open Group
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23 in this Software without prior written authorization from The Open Group.
26 Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
30 Permission to use, copy, modify, and distribute this software and its
31 documentation for any purpose and without fee is hereby granted,
32 provided that the above copyright notice appear in all copies and that
33 both that copyright notice and this permission notice appear in
34 supporting documentation, and that the name of Digital not be
35 used in advertising or publicity pertaining to distribution of the
36 software without specific, written prior permission.
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46 ******************************************************************/
48 /* Form widget private definitions */
53 #include <X11/Xfuncproto.h>
55 #include <X11/Xaw/Form.h>
56 #include <X11/Xaw/XawInit.h>
60 #define XtREdgeType "EdgeType"
68 #define XtInheritLayout \
69 ((Boolean (*)(FormWidget, unsigned int, unsigned int, Bool))_XtInherit)
72 Boolean(*layout)(FormWidget, unsigned int, unsigned int, Bool);
78 typedef struct _FormClassRec {
79 CoreClassPart core_class;
80 CompositeClassPart composite_class;
81 ConstraintClassPart constraint_class;
82 FormClassPart form_class;
85 extern FormClassRec formClassRec;
87 typedef struct _FormPart {
89 int default_spacing; /* default distance between children */
92 Dimension old_width, old_height; /* reference value for *_virtual */
93 int no_refigure; /* no re-layout while > 0 */
94 Boolean needs_relayout; /* next time no_refigure == 0 */
95 Boolean resize_in_layout; /* should layout() do geom request? */
96 Dimension preferred_width, preferred_height; /* cached from layout */
97 Boolean resize_is_no_op; /* Causes resize to take not action */
99 XawDisplayList *display_list;
100 XtPointer pad[4]; /* for future use and keep binary compatability */
104 typedef struct _FormRec {
106 CompositePart composite;
107 ConstraintPart constraint;
111 typedef struct _FormConstraintsPart {
113 XtEdgeType top, bottom, left, right;/* where to drag edge on resize */
114 int dx; /* desired horiz offset */
115 int dy; /* desired vertical offset */
116 Widget horiz_base; /* measure dx from here if non-null */
117 Widget vert_base; /* measure dy from here if non-null */
118 Boolean allow_resize; /* True if child may request resize */
121 short virtual_width, virtual_height;
122 Position new_x, new_y;
123 LayoutState layout_state; /* temporary layout state */
124 Boolean deferred_resize;/* was resized while no_refigure is set */
126 short virtual_x, virtual_y;
127 XtPointer pad[2]; /* leave some space for further optimizations
128 * in the form widget geometry
131 } FormConstraintsPart;
133 typedef struct _FormConstraintsRec {
134 FormConstraintsPart form;
135 } FormConstraintsRec, *FormConstraints;
139 #endif /* _XawFormP_h */