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Annotation of researchv9/X11/src/X.V11R1/lib/Xtk/TextP.h, revision 1.1

1.1     ! root        1: /*
        !             2: * $Header: TextPrivate.h,v 1.2 87/09/11 21:24:59 haynes Rel $
        !             3: */
        !             4: 
        !             5: /*
        !             6:  * Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
        !             7:  * 
        !             8:  *                         All Rights Reserved
        !             9:  * 
        !            10:  * Permission to use, copy, modify, and distribute this software and its 
        !            11:  * documentation for any purpose and without fee is hereby granted, 
        !            12:  * provided that the above copyright notice appear in all copies and that
        !            13:  * both that copyright notice and this permission notice appear in 
        !            14:  * supporting documentation, and that the name of Digital Equipment
        !            15:  * Corporation not be used in advertising or publicity pertaining to
        !            16:  * distribution of the software without specific, written prior permission.  
        !            17:  * 
        !            18:  * 
        !            19:  * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
        !            20:  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
        !            21:  * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
        !            22:  * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
        !            23:  * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
        !            24:  * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
        !            25:  * SOFTWARE.
        !            26:  */
        !            27: #ifndef _XtTextPrivate_h
        !            28: #define _XtTextPrivate_h
        !            29: 
        !            30: 
        !            31: /****************************************************************
        !            32:  *
        !            33:  * Text widget private
        !            34:  *
        !            35:  ****************************************************************/
        !            36: #define MAXCUT 30000   /* Maximum number of characters that can be cut. */
        !            37: 
        !            38: #define LF     0x0a
        !            39: #define CR     0x0d
        !            40: #define TAB    0x09
        !            41: #define BS     0x08
        !            42: #define SP     0x20
        !            43: #define DEL    0x7f
        !            44: #define BSLASH '\\'
        !            45: 
        !            46: #define EDITDONE 0
        !            47: #define EDITERROR 1
        !            48: #define POSITIONERROR 2
        !            49: 
        !            50: typedef enum {XtsdLeft, XtsdRight} ScanDirection;
        !            51: typedef enum {XtstPositions, XtstWhiteSpace, XtstEOL, XtstParagraph, XtstFile} ScanType;
        !            52: 
        !            53: typedef struct {
        !            54:     int  firstPos;
        !            55:     int  length;
        !            56:     char *ptr;
        !            57:     } XtTextBlock, *TextBlockPtr;
        !            58: 
        !            59: /* the data field is really a pointer to source info, see disk and 
        !            60:    stream sources in TextKinds.c */
        !            61: 
        !            62: typedef struct {
        !            63:     int                    (*read)();
        !            64:     int                    (*replace)();
        !            65:     XtTextPosition  (*getLastPos)();
        !            66:     int                    (*setLastPos)();
        !            67:     XtTextPosition  (*scan)();
        !            68:     XtEditType      (*editType)();
        !            69:     int                    *data;       
        !            70:     } XtTextSource, *TextSourcePtr;
        !            71: 
        !            72: typedef struct {
        !            73:     XFontStruct *font;
        !            74:     int foreground;
        !            75:     int (*display)();
        !            76:     int (*insertCursor)();
        !            77:     int (*clearToBackground)();
        !            78:     int (*findPosition)();
        !            79:     int (*findDistance)();
        !            80:     int (*resolve)();
        !            81:     int (*maxLines)();
        !            82:     int (*maxHeight)();
        !            83:     int *data;
        !            84:     } XtTextSink, *TextSinkPtr;
        !            85: 
        !            86: /* displayable text management data structures */
        !            87: 
        !            88: typedef struct {
        !            89:     XtTextPosition position;
        !            90:     Position x, y, endX;
        !            91:     } LineTableEntry, *LineTableEntryPtr;
        !            92: 
        !            93: /* Line Tables are n+1 long - last position displayed is in last lt entry */
        !            94: typedef struct {
        !            95:     XtTextPosition  top;       /* Top of the displayed text.           */
        !            96:     int                    lines;      /* How many lines in this table.        */
        !            97:     LineTableEntry  *info;     /* A dynamic array, one entry per line  */
        !            98:     } LineTable, *LineTablePtr;
        !            99: 
        !           100: typedef enum {XtisOn, XtisOff} InsertState;
        !           101: 
        !           102: typedef enum {XtselectNull, XtselectPosition, XtselectChar, XtselectWord,
        !           103:     XtselectLine, XtselectParagraph, XtselectAll} XtSelectType;
        !           104: 
        !           105: typedef enum {XtsmTextSelect, XtsmTextExtend} SelectionMode;
        !           106: 
        !           107: typedef enum {XtactionStart, XtactionAdjust, XtactionEnd} SelectionAction;
        !           108: 
        !           109: typedef struct {
        !           110:     XtTextPosition left, right;
        !           111:     XtSelectType  type;
        !           112: } TextSelection;
        !           113: 
        !           114: #define IsPositionVisible(ctx, pos)    (pos >= ctx->text.lt.info[0].position && \
        !           115:            pos <= ctx->text.lt.info[ctx->text.lt.lines].position)
        !           116: 
        !           117: /* Private Text Definitions */
        !           118: 
        !           119: typedef int (*ActionProc)();
        !           120: 
        !           121: typedef XtSelectType SelectionArray[20];
        !           122: 
        !           123: /* New fields for the Text widget class record */
        !           124: 
        !           125: typedef struct {int foo;} TextClassPart;
        !           126: 
        !           127: /* Full class record declaration */
        !           128: typedef struct _TextClassRec {
        !           129:     CoreClassPart      core_class;
        !           130:     TextClassPart      text_class;
        !           131: } TextClassRec;
        !           132: 
        !           133: extern TextClassRec textClassRec;
        !           134: 
        !           135: /* New fields for the Text widget record */
        !           136: typedef struct {
        !           137:     XtTextSource       *source;
        !           138:     XtTextSink         *sink;
        !           139:     LineTable       lt;
        !           140:     XtTextPosition  insertPos;
        !           141:     TextSelection   s;
        !           142:     ScanDirection   extendDir;
        !           143:     TextSelection   origSel;        /* the selection being modified */
        !           144:     SelectionArray  sarray;         /* Array to cycle for selections. */
        !           145:     Dimension       leftmargin;     /* Width of left margin. */
        !           146:     int             options;        /* wordbreak, scroll, etc. */
        !           147:     unsigned short  lasttime;       /* timestamp of last processed action */
        !           148:     unsigned short  time;           /* timestamp of last key or button action */ 
        !           149:     Position        ev_x, ev_y;     /* x, y coords for key or button action */
        !           150:     Widget          sbar;           /* The vertical scroll bar (none = 0).  */
        !           151:     Widget          outer;          /* Parent of scrollbar & text (if any) */
        !           152:     XtTextPosition  *updateFrom;    /* Array of start positions for update. */
        !           153:     XtTextPosition  *updateTo;      /* Array of end positions for update. */
        !           154:     int             numranges;      /* How many update ranges there are. */
        !           155:     int             maxranges;      /* How many update ranges we've space for */
        !           156:     Boolean         showposition;   /* True if we need to show the position. */
        !           157:     XtTextPosition  lastPos;        /* Last position of source. */
        !           158:     Widget          dialog;         /* Window containing dialog, if any. */
        !           159:     GC              gc;
        !           160:     Boolean         hasfocus;   /* TRUE if we currently have input focus. */
        !           161: } TextPart;
        !           162: 
        !           163: /****************************************************************
        !           164:  *
        !           165:  * Full instance record declaration
        !           166:  *
        !           167:  ****************************************************************/
        !           168: 
        !           169: typedef struct _TextRec {
        !           170:     CorePart   core;
        !           171:     TextPart   text;
        !           172: } TextRec;
        !           173: 
        !           174: 
        !           175: #endif _XtTextPrivate_h
        !           176: /* DON'T ADD STUFF AFTER THIS #endif */

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