1/***********************************************************
2
3Copyright 1987, 1988, 1994, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25
26Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
27
28                        All Rights Reserved
29
30Permission to use, copy, modify, and distribute this software and its
31documentation for any purpose and without fee is hereby granted,
32provided that the above copyright notice appear in all copies and that
33both that copyright notice and this permission notice appear in
34supporting documentation, and that the name of Digital not be
35used in advertising or publicity pertaining to distribution of the
36software without specific, written prior permission.
37
38DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
39ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
40DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
41ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
42WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
43ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
44SOFTWARE.
45
46******************************************************************/
47
48/* Form widget private definitions */
49
50#ifndef _XawFormP_h
51#define _XawFormP_h
52
53#include <X11/Xfuncproto.h>
54
55#include <X11/Xaw/Form.h>
56#include <X11/Xaw/XawInit.h>
57
58_XFUNCPROTOBEGIN
59
60#define XtREdgeType "EdgeType"
61
62typedef enum {
63    LayoutPending,
64    LayoutInProgress,
65    LayoutDone
66} LayoutState;
67
68#define XtInheritLayout							\
69((Boolean (*)(FormWidget, unsigned int, unsigned int, Bool))_XtInherit)
70
71typedef struct {
72    Boolean(*layout)(FormWidget, unsigned int, unsigned int, Bool);
73#ifndef OLDXAW
74    XtPointer extension;
75#endif
76} FormClassPart;
77
78typedef struct _FormClassRec {
79    CoreClassPart	core_class;
80    CompositeClassPart	composite_class;
81    ConstraintClassPart	constraint_class;
82    FormClassPart	form_class;
83} FormClassRec;
84
85extern FormClassRec formClassRec;
86
87typedef struct _FormPart {
88    /* resources */
89    int		default_spacing;    /* default distance between children */
90
91    /* private */
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  */
98#ifndef OLDXAW
99    XawDisplayList *display_list;
100    XtPointer pad[4];	/* for future use and keep binary compatibility */
101#endif
102} FormPart;
103
104typedef struct _FormRec {
105    CorePart		core;
106    CompositePart	composite;
107    ConstraintPart	constraint;
108    FormPart		form;
109} FormRec;
110
111typedef struct _FormConstraintsPart {
112    /* resources */
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	*/
119
120    /* private */
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 */
125#ifndef OLDXAW
126    short	virtual_x, virtual_y;
127    XtPointer	pad[2];		/* leave some space for further optimizations
128				 * in the form widget geometry
129				 */
130#endif
131} FormConstraintsPart;
132
133typedef struct _FormConstraintsRec {
134    FormConstraintsPart	form;
135} FormConstraintsRec, *FormConstraints;
136
137_XFUNCPROTOEND
138
139#endif /* _XawFormP_h */
140