/***********************************************************

Copyright 1987, 1988, 1994, 1998  The Open Group

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.


Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its 
documentation for any purpose and without fee is hereby granted, 
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in 
supporting documentation, and that the name of Digital not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.  

DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.

******************************************************************/

#ifndef _XawTextSrcP_h
#define _XawTextSrcP_h

/*
 * TextSrc Object Private Data
 */
#include <X11/Xfuncproto.h>

#include <X11/Xaw/TextSrc.h>
#include <X11/Xaw/TextP.h>	/* This source works with the Text widget */

_XFUNCPROTOBEGIN

#ifndef OLDXAW
struct _XawTextAnchor {
    XawTextPosition position;
    XawTextEntity *entities, *cache;
};

#define	XAW_TENTF_HIDE		0x0001
#define XAW_TENTF_READ		0x0002
#define XAW_TENTF_REPLACE	0x0004
struct _XawTextEntity {
    short type;
    short flags;
    XawTextEntity *next;
    XtPointer data;
    XawTextPosition offset;	/* from the anchor */
    Cardinal length;
    XrmQuark property;
};
#endif

#if 0	/* no longer used */
/* New fields for the TextSrc object class */
typedef struct {
  XtPointer		next_extension;
  XrmQuark		record_type;
  long			version;
  Cardinal		record_size;
  int			(*Input)();
} TextSrcExtRec, *TextSrcExt;
#endif

typedef XawTextPosition (*_XawSrcReadProc)
     (Widget, XawTextPosition, XawTextBlock*, int);

typedef int (*_XawSrcReplaceProc)
     (Widget, XawTextPosition, XawTextPosition, XawTextBlock*);

typedef XawTextPosition (*_XawSrcScanProc)
     (Widget, XawTextPosition, XawTextScanType, XawTextScanDirection,
      int, Bool);

typedef XawTextPosition (*_XawSrcSearchProc)
     (Widget, XawTextPosition, XawTextScanDirection, XawTextBlock*);

typedef void (*_XawSrcSetSelectionProc)
     (Widget, XawTextPosition, XawTextPosition, Atom);

typedef Boolean (*_XawSrcConvertSelectionProc)
     (Widget, Atom*, Atom*, Atom*, XtPointer*, unsigned long*, int*);

typedef struct _TextSrcClassPart {
    _XawSrcReadProc Read;
    _XawSrcReplaceProc Replace;
    _XawSrcScanProc Scan;
    _XawSrcSearchProc Search;
    _XawSrcSetSelectionProc SetSelection;
    _XawSrcConvertSelectionProc ConvertSelection;
#ifndef OLDXAW
    XtPointer extension;
#endif
} TextSrcClassPart;

/* Full class record */
typedef struct _TextSrcClassRec {
    ObjectClassPart     object_class;
    TextSrcClassPart	textSrc_class;
} TextSrcClassRec;

extern TextSrcClassRec textSrcClassRec;

#ifndef OLDXAW
typedef struct _XawTextUndo XawTextUndo;
#endif

/* New fields for the TextSrc object */
typedef struct {
    /* resources */
    XawTextEditType	edit_mode;
    XrmQuark text_format;		/* 2 formats: FMT8BIT for Ascii
					   FMTWIDE for ISO 10646 */
#ifndef OLDXAW
    XtCallbackList callback;		/* A callback list to call when the
					   source is changed */
    Boolean changed;
    Boolean enable_undo;

    /* private state */
    Boolean undo_state;			/* to protect undo manipulation */
    XawTextUndo *undo;
    WidgetList text;			/* TextWidget's using this source */
    Cardinal num_text;
    XtCallbackList property_callback;
    XawTextAnchor **anchors;
    int num_anchors;
    XtPointer pad[1];	/* for future use and keep binary compatability */
#endif
} TextSrcPart;

/* Full instance record */
typedef struct _TextSrcRec {
    ObjectPart	object;
    TextSrcPart	textSrc;
} TextSrcRec;

/*
 * Semiprivate declarations of functions used in other modules
 */
char* _XawTextWCToMB
(
 Display	*display,
 wchar_t	*wstr,
 int		*len_in_out
 );

wchar_t* _XawTextMBToWC
(
 Display	*display,
 char		*str,
 int		*len_in_out
 );

#ifndef OLDXAW
XawTextAnchor *XawTextSourceAddAnchor
(
 Widget			source,
 XawTextPosition	position
 );

XawTextAnchor *XawTextSourceFindAnchor
(
 Widget			source,
 XawTextPosition	position
 );

XawTextAnchor *XawTextSourceNextAnchor
(
 Widget			 source,
 XawTextAnchor		*anchor
 );

XawTextAnchor *XawTextSourcePrevAnchor
(
 Widget			 source,
 XawTextAnchor		*anchor
 );

XawTextAnchor *XawTextSourceRemoveAnchor
(
 Widget			 source,
 XawTextAnchor		*anchor
 );

Bool XawTextSourceAnchorAndEntity
(
 Widget			  w,
 XawTextPosition	  position,
 XawTextAnchor		**anchor_return,
 XawTextEntity		**entity_return
 );

XawTextEntity *XawTextSourceAddEntity
(
 Widget			source,
 int			type,
 int			flags,
 XtPointer		data,
 XawTextPosition	position,
 Cardinal		length,
 XrmQuark		property
 );

void XawTextSourceClearEntities
(
 Widget			w,
 XawTextPosition	left,
 XawTextPosition	right
 );
#endif

#if 0	/* no longer used */
typedef XawTextPosition (*_XawTextPositionFunc)();
#endif

#define XtInheritInput			((_XawTextPositionFunc)_XtInherit)
#define XtInheritRead			((_XawSrcReadProc)_XtInherit)
#define XtInheritReplace		((_XawSrcReplaceProc)_XtInherit)
#define XtInheritScan			((_XawSrcScanProc)_XtInherit)
#define XtInheritSearch			((_XawSrcSearchProc)_XtInherit)
#define XtInheritSetSelection		((_XawSrcSetSelectionProc)_XtInherit)
#define XtInheritConvertSelection     ((_XawSrcConvertSelectionProc)_XtInherit)
#if 0
#define XtTextSrcExtVersion	      1
#define XtTextSrcExtTypeString        "XT_TEXTSRC_EXT"
#endif

_XFUNCPROTOEND

#endif /* _XawTextSrcP_h */
