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/*
 * TranslateI.h - Header file private to translation management
 *
 * Author:	Gabe Beged-Dov, HP
 *
 * Former Author:	Charles Haynes
 * 		Digital Equipment Corporation
 * 		Western Research Laboratory
 * Date:	Sat Aug 29 1987
 */

/*#define REFCNT_TRANSLATIONS*/
#define CACHE_TRANSLATIONS

#define TM_NO_MATCH (-2)

#define _XtRStateTablePair "_XtStateTablePair"

typedef unsigned char TMByteCard;
typedef unsigned short TMShortCard;
typedef unsigned long TMLongCard;
typedef short TMShortInt;

typedef struct _TMTypeMatchRec *TMTypeMatch;
typedef struct _TMModifierMatchRec *TMModifierMatch;
typedef struct _TMEventRec *TMEventPtr;

typedef Boolean (*MatchProc)(TMTypeMatch typeMatch,
			     TMModifierMatch modMatch,
			     TMEventPtr eventSeq);

typedef struct _ModToKeysymTable {
    Modifiers mask;
    int count;
    int idx;
} ModToKeysymTable;

typedef struct _LateBindings {
    unsigned int knot:1;
    unsigned int pair:1;
    unsigned short ref_count;	/* garbage collection */
    KeySym keysym;
} LateBindings, *LateBindingsPtr;

typedef short ModifierMask;

typedef struct _ActionsRec *ActionPtr;
typedef struct _ActionsRec {
    int idx;			/* index into quarkTable to find proc */
    String *params;		/* pointer to array of params */
    Cardinal num_params;	/* number of params */
    ActionPtr next;		/* next action to perform */
} ActionRec;

typedef struct _XtStateRec *StatePtr;
typedef struct _XtStateRec {
    unsigned int	isCycleStart:1;
    unsigned int	isCycleEnd:1;
    TMShortCard		typeIndex;
    TMShortCard		modIndex;
    ActionPtr		actions;	/* rhs list of actions to perform */
    StatePtr 		nextLevel;
}StateRec;

#define XtTableReplace	0
#define XtTableAugment	1
#define XtTableOverride	2
#define XtTableUnmerge  3

typedef unsigned int _XtTranslateOp;

/*
 * New Definitions
 */
typedef struct _TMModifierMatchRec{
    TMLongCard	 modifiers;
    TMLongCard	 modifierMask;
    LateBindingsPtr lateModifiers;
    Boolean	 standard;
}TMModifierMatchRec;

typedef struct _TMTypeMatchRec{
    TMLongCard	 eventType;
    TMLongCard	 eventCode;
    TMLongCard	 eventCodeMask;
    MatchProc	 matchEvent;
}TMTypeMatchRec;

typedef struct _TMBranchHeadRec {
    unsigned int	isSimple:1;
    unsigned int	hasActions:1;
    unsigned int	hasCycles:1;
    unsigned int	more:13;
    TMShortCard		typeIndex;
    TMShortCard		modIndex;
}TMBranchHeadRec, *TMBranchHead;

/* NOTE: elements of this structure must match those of
 * TMComplexStateTreeRec and TMParseStateTreeRec.
 */
typedef struct _TMSimpleStateTreeRec{
    unsigned int	isSimple:1;
    unsigned int	isAccelerator:1;
    unsigned int	mappingNotifyInterest:1;
    unsigned int	refCount:13;
    TMShortCard		numBranchHeads;
    TMShortCard		numQuarks;   /* # of entries in quarkTbl */
    TMShortCard		unused;	     /* to ensure same alignment */
    TMBranchHeadRec	*branchHeadTbl;
    XrmQuark		*quarkTbl;  /* table of quarkified rhs*/
}TMSimpleStateTreeRec, *TMSimpleStateTree;

/* NOTE: elements of this structure must match those of
 * TMSimpleStateTreeRec and TMParseStateTreeRec.
 */
typedef struct _TMComplexStateTreeRec{
    unsigned int	isSimple:1;
    unsigned int	isAccelerator:1;
    unsigned int	mappingNotifyInterest:1;
    unsigned int	refCount:13;
    TMShortCard		numBranchHeads;
    TMShortCard		numQuarks;   /* # of entries in quarkTbl */
    TMShortCard		numComplexBranchHeads;
    TMBranchHeadRec	*branchHeadTbl;
    XrmQuark		*quarkTbl;  /* table of quarkified rhs*/
    StatePtr		*complexBranchHeadTbl;
}TMComplexStateTreeRec, *TMComplexStateTree;

/* NOTE: elements of this structure must match those of
 * TMSimpleStateTreeRec and TMComplexStateTreeRec.
 */
typedef struct _TMParseStateTreeRec{
    unsigned int	isSimple:1;
    unsigned int	isAccelerator:1;
    unsigned int	mappingNotifyInterest:1;
    unsigned int	isStackQuarks:1;
    unsigned int	isStackBranchHeads:1;
    unsigned int	isStackComplexBranchHeads:1;
    unsigned int	unused:10; /* to ensure correct alignment */
    TMShortCard		numBranchHeads;
    TMShortCard		numQuarks;   /* # of entries in quarkTbl */
    TMShortCard		numComplexBranchHeads;
    TMBranchHeadRec	*branchHeadTbl;
    XrmQuark		*quarkTbl;  /* table of quarkified rhs*/
    StatePtr		*complexBranchHeadTbl;
    TMShortCard		branchHeadTblSize;
    TMShortCard		quarkTblSize; /*total size of quarkTbl */
    TMShortCard		complexBranchHeadTblSize;
    StatePtr		head;
}TMParseStateTreeRec, *TMParseStateTree;

typedef union _TMStateTreeRec{
    TMSimpleStateTreeRec	simple;
    TMParseStateTreeRec		parse;
    TMComplexStateTreeRec	complex;
}*TMStateTree, **TMStateTreePtr, **TMStateTreeList;

typedef struct _TMSimpleBindProcsRec {
    XtActionProc	*procs;
}TMSimpleBindProcsRec, *TMSimpleBindProcs;

typedef struct _TMComplexBindProcsRec {
    Widget	 	widget;		/*widgetID to pass to action Proc*/
    XtTranslations	aXlations;
    XtActionProc	*procs;
}TMComplexBindProcsRec, *TMComplexBindProcs;

typedef struct _TMSimpleBindDataRec {
    unsigned int		isComplex:1;	/* must be first */
    TMSimpleBindProcsRec	bindTbl[1];	/* variable length */
}TMSimpleBindDataRec, *TMSimpleBindData;

typedef struct _TMComplexBindDataRec {
    unsigned int		isComplex:1;	/* must be first */
    struct _ATranslationData	*accel_context;	/* for GetValues */
    TMComplexBindProcsRec	bindTbl[1]; 	/* variable length */
}TMComplexBindDataRec, *TMComplexBindData;

typedef union _TMBindDataRec{
    TMSimpleBindDataRec		simple;
    TMComplexBindDataRec	complex;
}*TMBindData;

typedef struct _TranslationData{
    unsigned char		hasBindings;	/* must be first */
    unsigned char		operation; /*replace,augment,override*/
    TMShortCard			numStateTrees;
    struct _TranslationData    	*composers[2];
    EventMask			eventMask;
    TMStateTree			stateTreeTbl[1]; /* variable length */
}TranslationData;

/*
 * ATranslations is returned by GetValues for translations that contain
 * accelerators.  The TM can differentiate between this and TranslationData
 * (that don't have a bindTbl) by looking at the first field (hasBindings)
 * of either structure.  All ATranslationData structures associated with a
 * widget are chained off the BindData record of the widget.
 */
typedef struct _ATranslationData{
    unsigned char		hasBindings;	/* must be first */
    unsigned char		operation;
    struct _TranslationData	*xlations;  /* actual translations */
    struct _ATranslationData	*next;      /* chain the contexts together */
    TMComplexBindProcsRec	bindTbl[1]; /* accelerator bindings */
}ATranslationData, *ATranslations;

typedef struct _TMConvertRec {
    XtTranslations	old; /* table to merge into */
    XtTranslations	new; /* table to merge from */
} TMConvertRec;

#define _XtEventTimerEventType ((TMLongCard)~0L)
#define KeysymModMask		(1L<<27) /* private to TM */
#define AnyButtonMask		(1L<<28) /* private to TM */

typedef struct _EventRec {
    TMLongCard modifiers;
    TMLongCard modifierMask;
    LateBindingsPtr lateModifiers;
    TMLongCard eventType;
    TMLongCard eventCode;
    TMLongCard eventCodeMask;
    MatchProc matchEvent;
    Boolean standard;
} Event;

typedef struct _EventSeqRec *EventSeqPtr;
typedef struct _EventSeqRec {
    Event event;	/* X event description */
    StatePtr state;	/* private to state table builder */
    EventSeqPtr next;	/* next event on line */
    ActionPtr actions;	/* r.h.s.   list of actions to perform */
} EventSeqRec;

typedef EventSeqRec EventRec;
typedef EventSeqPtr EventPtr;

typedef struct _TMEventRec {
    XEvent *xev;
    Event event;
}TMEventRec;

typedef struct _ActionHookRec {
    struct _ActionHookRec* next; /* must remain first */
    XtAppContext app;
    XtActionHookProc proc;
    XtPointer closure;
} ActionHookRec, *ActionHook;

/* choose a number between 2 and 8 */
#define TMKEYCACHELOG2 6
#define TMKEYCACHESIZE (1<<TMKEYCACHELOG2)

typedef struct _KeyCacheRec {
    unsigned char modifiers_return[256]; /* constant per KeyCode, key proc */
    KeyCode keycode[TMKEYCACHESIZE];
    unsigned char modifiers[TMKEYCACHESIZE];
    KeySym keysym[TMKEYCACHESIZE];
} TMKeyCache;

typedef struct _TMKeyContextRec {
    XEvent *event;
    unsigned long serial;
    KeySym keysym;
    Modifiers modifiers;
    TMKeyCache keycache;  /* keep this last, to keep offsets to others small */
} TMKeyContextRec, *TMKeyContext;

typedef struct _TMGlobalRec{
    TMTypeMatchRec 		**typeMatchSegmentTbl;
    TMShortCard			numTypeMatches;
    TMShortCard			numTypeMatchSegments;
    TMShortCard			typeMatchSegmentTblSize;
    TMModifierMatchRec 		**modMatchSegmentTbl;
    TMShortCard			numModMatches;
    TMShortCard			numModMatchSegments;
    TMShortCard			modMatchSegmentTblSize;
    Boolean			newMatchSemantics;
#ifdef TRACE_TM
    XtTranslations		*tmTbl;
    TMShortCard			numTms;
    TMShortCard			tmTblSize;
    struct _TMBindCacheRec	**bindCacheTbl;
    TMShortCard			numBindCache;
    TMShortCard			bindCacheTblSize;
    TMShortCard			numLateBindings;
    TMShortCard			numBranchHeads;
    TMShortCard			numComplexStates;
    TMShortCard			numComplexActions;
#endif /* TRACE_TM */
}TMGlobalRec;

_XFUNCPROTOBEGIN

extern TMGlobalRec _XtGlobalTM;

#define TM_MOD_SEGMENT_SIZE 	16
#define TM_TYPE_SEGMENT_SIZE 	16

#define TMGetTypeMatch(idx) \
  ((TMTypeMatch) \
   &((_XtGlobalTM.typeMatchSegmentTbl[((idx) >> 4)])[(idx) & 15]))
#define TMGetModifierMatch(idx) \
  ((TMModifierMatch) \
   &((_XtGlobalTM.modMatchSegmentTbl[(idx) >> 4])[(idx) & 15]))

/* Useful Access Macros */
#define TMNewMatchSemantics() (_XtGlobalTM.newMatchSemantics)
#define TMBranchMore(branch) (branch->more)
#define TMComplexBranchHead(tree, br) \
  (((TMComplexStateTree)tree)->complexBranchHeadTbl[TMBranchMore(br)])

#define TMGetComplexBindEntry(bindData, idx) \
  ((TMComplexBindProcs)&(((TMComplexBindData)bindData)->bindTbl[idx]))

#define TMGetSimpleBindEntry(bindData, idx) \
  ((TMSimpleBindProcs)&(((TMSimpleBindData)bindData)->bindTbl[idx]))

#define _InitializeKeysymTables(dpy, pd) \
    if (pd->keysyms == NULL) \
        _XtBuildKeysymTables(dpy, pd)

/*
 * Internal Functions
 */

extern void _XtPopup(
    Widget      /* widget */,
    XtGrabKind  /* grab_kind */,
    _XtBoolean	/* spring_loaded */
);

extern String _XtPrintXlations(
    Widget		/* w */,
    XtTranslations 	/* xlations */,
    Widget		/* accelWidget */,
    _XtBoolean		/* includeRHS */
);

extern void _XtRegisterGrabs(
    Widget	/* widget */
);

extern XtPointer _XtInitializeActionData(
    struct _XtActionsRec *	/* actions */,
    Cardinal 			/* count */,
    _XtBoolean			/* inPlace */
);

extern void _XtAddEventSeqToStateTree(
    EventSeqPtr		/* eventSeq */,
    TMParseStateTree	/* stateTree */
);

extern Boolean _XtMatchUsingStandardMods(
    TMTypeMatch		/* typeMatch */,
    TMModifierMatch	/* modMatch */,
    TMEventPtr		/* eventSeq */
);

extern Boolean _XtMatchUsingDontCareMods(
    TMTypeMatch		/* typeMatch */,
    TMModifierMatch	/* modMatch */,
    TMEventPtr		/* eventSeq */
);

extern Boolean _XtRegularMatch(
    TMTypeMatch		/* typeMatch */,
    TMModifierMatch	/* modMatch */,
    TMEventPtr		/* eventSeq */
);

extern Boolean _XtMatchAtom(
    TMTypeMatch		/* typeMatch */,
    TMModifierMatch	/* modMatch */,
    TMEventPtr		/* eventSeq */
);

extern void _XtTranslateEvent(
    Widget		/* widget */,
    XEvent*		/* event */
);

#include "CallbackI.h"
#include "EventI.h"
#include "HookObjI.h"
#include "PassivGraI.h"
#include "ThreadsI.h"
#include "InitialI.h"
#include "ResourceI.h"
#include "StringDefs.h"

extern void _XtBuildKeysymTables(Display *dpy, XtPerDisplay pd);

#ifndef NO_MIT_HACKS
extern void  _XtDisplayTranslations(
    Widget		/* widget */,
    XEvent*		/* event */,
    String*		/* params */,
    Cardinal*		/* num_params */
);

extern void  _XtDisplayAccelerators(
    Widget		/* widget */,
    XEvent*		/* event */,
    String*		/* params */,
    Cardinal*		/* num_params */
);

extern void _XtDisplayInstalledAccelerators(
    Widget		/* widget */,
    XEvent*		/* event */,
    String*		/* params */,
    Cardinal*		/* num_params */
);
#endif /* ifndef NO_MIT_HACKS */

extern void _XtPopupInitialize(
    XtAppContext	/* app_context */
);

extern void _XtBindActions(
    Widget	/* widget */,
    XtTM 	/* tm_rec */
);

extern Boolean _XtComputeLateBindings(
    Display*		/* dpy */,
    LateBindingsPtr	/* lateModifiers */,
    Modifiers*		/* computed */,
    Modifiers*		/* computedMask */
);

extern XtTranslations _XtCreateXlations(
    TMStateTree *	/* stateTrees */,
    TMShortCard		/* numStateTrees */,
    XtTranslations 	/* first */,
    XtTranslations	/* second */
);

extern Boolean _XtCvtMergeTranslations(
    Display*	/* dpy */,
    XrmValuePtr	/* args */,
    Cardinal*	/* num_args */,
    XrmValuePtr	/* from */,
    XrmValuePtr	/* to */,
    XtPointer*	/* closure_ret */
);

void _XtRemoveStateTreeByIndex(
    XtTranslations	/* xlations */,
    TMShortCard	/* i */);

void _XtFreeTranslations(
    XtAppContext	/* app */,
    XrmValuePtr		/* toVal */,
    XtPointer		/* closure */,
    XrmValuePtr		/* args */,
    Cardinal*		/* num_args */
);

extern TMShortCard _XtGetModifierIndex(
    Event*	/* event */
);

extern TMShortCard _XtGetQuarkIndex(
    TMParseStateTree	/* stateTreePtr */,
    XrmQuark		/* quark */
);

extern XtTranslations _XtGetTranslationValue(
    Widget		/* widget */
);

extern TMShortCard _XtGetTypeIndex(
    Event*	/* event */
);

extern void _XtGrabInitialize(
    XtAppContext	/* app */
);

extern void _XtInstallTranslations(
    Widget		/* widget */
);

extern void _XtRemoveTranslations(
    Widget		/* widget */
);

extern void _XtDestroyTMData(
    Widget		/* widget */
);

extern void _XtMergeTranslations(
    Widget		/* widget */,
    XtTranslations	/* newXlations */,
    _XtTranslateOp	/* operation */
);

extern void _XtActionInitialize(
    XtAppContext	/* app */
);

extern TMStateTree _XtParseTreeToStateTree(
    TMParseStateTree 	/* parseTree */
);

extern String _XtPrintActions(
    ActionRec*	/* actions */,
    XrmQuark*	/* quarkTbl */
);

extern String _XtPrintState(
    TMStateTree	/* stateTree */,
    TMBranchHead /* branchHead */);

extern String _XtPrintEventSeq(
    EventSeqPtr	/* eventSeq */,
    Display*	/* dpy */
);

typedef Boolean (*_XtTraversalProc)(
    StatePtr	/* state */,
    XtPointer	/* data */
);

extern void _XtTraverseStateTree(
    TMStateTree		/* tree */,
    _XtTraversalProc	/* func */,
    XtPointer		/* data */
);

extern void _XtTranslateInitialize(
    void
);

extern void _XtAddTMConverters(
    ConverterTable	/* table */
);

extern void _XtUnbindActions(
    Widget		/* widget */,
    XtTranslations	/* xlations */,
    TMBindData		/* bindData */
);

extern void _XtUnmergeTranslations(
    Widget		/* widget */,
    XtTranslations 	/* xlations */
);

/* TMKey.c */
extern void _XtAllocTMContext(XtPerDisplay pd);

_XFUNCPROTOEND

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