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      1 /***********************************************************
      2 
      3 Copyright 1987, 1988, 1994, 1998  The Open Group
      4 
      5 Permission to use, copy, modify, distribute, and sell this software and its
      6 documentation for any purpose is hereby granted without fee, provided that
      7 the above copyright notice appear in all copies and that both that
      8 copyright notice and this permission notice appear in supporting
      9 documentation.
     10 
     11 The above copyright notice and this permission notice shall be included in
     12 all copies or substantial portions of the Software.
     13 
     14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
     17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     20 
     21 Except as contained in this notice, the name of The Open Group shall not be
     22 used in advertising or otherwise to promote the sale, use or other dealings
     23 in this Software without prior written authorization from The Open Group.
     24 
     25 
     26 Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
     27 
     28                         All Rights Reserved
     29 
     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.
     37 
     38 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
     39 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
     40 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
     41 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
     42 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
     43 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
     44 SOFTWARE.
     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 
     62 typedef enum {
     63     LayoutPending,
     64     LayoutInProgress,
     65     LayoutDone
     66 } LayoutState;
     67 
     68 #define XtInheritLayout							\
     69 ((Boolean (*)(FormWidget, unsigned int, unsigned int, Bool))_XtInherit)
     70 
     71 typedef struct {
     72     Boolean(*layout)(FormWidget, unsigned int, unsigned int, Bool);
     73 #ifndef OLDXAW
     74     XtPointer extension;
     75 #endif
     76 } FormClassPart;
     77 
     78 typedef struct _FormClassRec {
     79     CoreClassPart	core_class;
     80     CompositeClassPart	composite_class;
     81     ConstraintClassPart	constraint_class;
     82     FormClassPart	form_class;
     83 } FormClassRec;
     84 
     85 extern FormClassRec formClassRec;
     86 
     87 typedef 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 
    104 typedef struct _FormRec {
    105     CorePart		core;
    106     CompositePart	composite;
    107     ConstraintPart	constraint;
    108     FormPart		form;
    109 } FormRec;
    110 
    111 typedef 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 
    133 typedef struct _FormConstraintsRec {
    134     FormConstraintsPart	form;
    135 } FormConstraintsRec, *FormConstraints;
    136 
    137 _XFUNCPROTOEND
    138 
    139 #endif /* _XawFormP_h */
    140