/* $Xorg: miStruct.h,v 1.3 2000/08/17 19:47:03 cpqbld Exp $ */


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Copyright 1989, 1990, 1991 by Sun Microsystems, Inc. 

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/* $XFree86: xc/programs/Xserver/PEX5/ddpex/mi/include/miStruct.h,v 1.6 2001/07/24 08:32:57 alanh Exp $ */

#ifndef MISTRUCT_H
#define MISTRUCT_H

#include "X.h"
#include "PEXproto.h"
#include "ddpex.h"

typedef ddpex4rtn	(*cssTableType)();

typedef struct {
	ddUSHORT		elementType;
	ddUSHORT		pexOClength;
	/* concatenate imp. dep. data definitions here */
	/* sample server definitions are listed later in this file */
	
	/* do the following to pad to 64 bit alignment for alpha and ia64 */
#if defined(__alpha) || defined(__alpha__) || \
    defined(ia64) || defined(__ia64__) || \
    defined(__s390x__)
	ddUSHORT		unused0;
	ddUSHORT		unused1;
#endif
} miGenericStr;
	
typedef struct _miCSSElement {
	struct _miCSSElement	*prev, *next;
	diStructHandle		pStruct;
	miGenericStr		element;	/* replace this with imp.
						 * dep. data structure */
} miGenericElementStr, *miGenericElementPtr;

typedef struct _miCSSElementHead {
	struct _miCSSElementHead	*next, *prev;
} miElementHeadStr;

#define	EL_HEAD_SIZE	sizeof(miElementHeadStr)

typedef struct _miStructHeader {
	/* the resource id is in the dipex resource structure */
	ddUSHORT		editMode;
	ddULONG			numElements;
	ddULONG			totalSize;	/* of elements when in PEX format */
	miGenericElementPtr	pZeroElement;	/* dummy */
	miGenericElementPtr	pLastElement;	/* dummy */
	miGenericElementPtr	pCurrElement;
	ddLONG			currElementOffset;
	listofObj		*parents;
	listofObj		*children;
	listofObj		*wksPostedTo;	/* directly posted to */
	listofObj		*wksAppearOn;	/* indirectly, thru inherit.*/
	ddULONG			refCount;	/* for search context & pick measure */
	ddBOOL			freeFlag;	/* keep structure until no sc or
						 * pick measure uses it */
} miStructStr, *miStructPtr;

/* sample server element definitions */

/* all fixed sized elements use the PEX protocol format and are not
 * defined explicitely 
 */

/*
 * See ddpex2.h for data definitions for the others
 */

/* traverser state info. passed to level 4 traverser which is used by
 * level 4 structure traversal and by level 3 mixed mode traversal.
 * When following initial path before pick/search, don't want to
 * follow all execute structure elements, only follow ones in search
 * path. Also, when following initial path, don't want to call
 * primitive OCS because actual pick/search isn't done until
 * start path has been traversed.  Use this enum value to determine
 * when to follow exec.str element and when to bypass primitives
 */
typedef enum {
	ES_YES = 0,		/* do 'normal' traversal */
	ES_POP = 1,		/* pick or search is done, pop out of traverser */
	ES_FOLLOW_PICK = 2,	/* follow initial pick path before picking */
	ES_FOLLOW_SEARCH = 3	/* follow initial search path before search */
} miExecStrState;

/* added to allow SI to do pick last */
typedef struct _miPPLevel {
  ddPickPath pp;
  struct _miPPLevel *up;
} miPPLevel;


/*
 * level 3 traversal doesn't do picking or search, so it ALWAYS sets
 * exec_str_flag to YES and the element pointers to NULL
 */
typedef struct {
	miExecStrState	exec_str_flag;
	ddULONG		pickId;
	ddULONG		ROCoffset;
	ddPickPath	*p_curr_pick_el;
	ddElementRef	*p_curr_sc_el;
	ddSHORT		max_depth;	/* max depth reached in pick or search */
        miPPLevel       *p_pick_path;
}  miTraverserState;

#endif	/* MISTRUCT_H */