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/*
* $XConsortium: TextP.h,v 1.27 88/10/18 12:24:25 swick Exp $
*/
/***********************************************************
Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts,
and the Massachusetts Institute of Technology, Cambridge, 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 names of Digital or MIT 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 _XtTextP_h
#define _XtTextP_h
#include <X11/Text.h>
#include <X11/SimpleP.h>
#include <X11/TextSrcP.h>
/****************************************************************
*
* Text widget private
*
****************************************************************/
#define MAXCUT 30000 /* Maximum number of characters that can be cut. */
#define LF 0x0a
#define CR 0x0d
#define TAB 0x09
#define BS 0x08
#define SP 0x20
#define DEL 0x7f
#define BSLASH '\\'
/* constants that subclasses may want to know */
#define DEFAULT_TEXT_HEIGHT ((Dimension)~0)
#define yMargin 2
/* displayable text management data structures */
typedef struct {
XtTextPosition position;
Position x, y, endX;
} XtTextLineTableEntry, *XtTextLineTableEntryPtr;
/* Line Tables are n+1 long - last position displayed is in last lt entry */
typedef struct {
XtTextPosition top; /* Top of the displayed text. */
int lines; /* How many lines in this table. */
XtTextLineTableEntry *info; /* A dynamic array, one entry per line */
} XtTextLineTable, *XtTextLineTablePtr;
#define IsPositionVisible(ctx, pos) \
(pos >= ctx->text.lt.info[0].position && \
pos < ctx->text.lt.info[ctx->text.lt.lines].position)
/* Private Text Definitions */
typedef int (*ActionProc)();
/* New fields for the Text widget class record */
typedef struct {int empty;} TextClassPart;
/* Full class record declaration */
typedef struct _TextClassRec {
CoreClassPart core_class;
SimpleClassPart simple_class;
TextClassPart text_class;
} TextClassRec;
extern TextClassRec textClassRec;
/* New fields for the Text widget record */
typedef struct _TextPart {
/* resources */
XtTextSource source;
XtTextSink sink;
XtTextPosition insertPos;
XtTextSelection s;
XtTextSelectType *sarray; /* Array to cycle for selections. */
Dimension client_leftmargin; /* client-visible resource */
int options; /* wordbreak, scroll, etc. */
int dialog_horiz_offset; /* position for popup dialog */
int dialog_vert_offset; /* position for popup dialog */
/* private state */
XtTextLineTable lt;
XtTextScanDirection extendDir;
XtTextSelection origSel; /* the selection being modified */
Dimension leftmargin; /* Width of left margin. */
Time lasttime; /* timestamp of last processed action */
Time time; /* time of last key or button action */
Position ev_x, ev_y; /* x, y coords for key or button action */
Widget sbar; /* The vertical scroll bar (none = 0). */
Widget outer; /* Parent of scrollbar & text (if any) */
XtTextPosition *updateFrom; /* Array of start positions for update. */
XtTextPosition *updateTo; /* Array of end positions for update. */
int numranges; /* How many update ranges there are. */
int maxranges; /* How many ranges we have space for */
Boolean showposition; /* True if we need to show the position. */
XtTextPosition lastPos; /* Last position of source. */
struct _dialog {
TextWidget text; /* the dialog's parent */
Widget widget; /* the dialog widget */
Widget doit; /* the confirm button */
Widget message; /* the (occasional) error message */
Boolean mapped; /* True if this dialog is in-use */
struct _dialog *next; /* a list of dialogs */
} *dialog; /* InsertFile pop-up widget */
GC gc;
Boolean hasfocus; /* TRUE if we currently have input focus.*/
Boolean update_disabled; /* TRUE if display updating turned off */
XtTextPosition old_insert; /* Last insertPos for batched updates */
} TextPart;
/****************************************************************
*
* Full instance record declaration
*
****************************************************************/
typedef struct _TextRec {
CorePart core;
SimplePart simple;
TextPart text;
} TextRec;
#endif _XtTextP_h
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