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Annotation of researchv9/X11/src/X.V11R1/lib/oldXtk/TextDisp.h, revision 1.1

1.1     ! root        1: /* $Header: TextDisp.h,v 1.1 87/09/11 07:59:23 toddb Exp $ */
        !             2: /*
        !             3:  *     sccsid: @(#)TextDisp.h  1.14    2/25/87
        !             4:  */
        !             5: 
        !             6: /*
        !             7:  * Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
        !             8:  * 
        !             9:  *                         All Rights Reserved
        !            10:  * 
        !            11:  * Permission to use, copy, modify, and distribute this software and its 
        !            12:  * documentation for any purpose and without fee is hereby granted, 
        !            13:  * provided that the above copyright notice appear in all copies and that
        !            14:  * both that copyright notice and this permission notice appear in 
        !            15:  * supporting documentation, and that the name of Digital Equipment
        !            16:  * Corporation not be used in advertising or publicity pertaining to
        !            17:  * distribution of the software without specific, written prior permission.  
        !            18:  * 
        !            19:  * 
        !            20:  * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
        !            21:  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
        !            22:  * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
        !            23:  * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
        !            24:  * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
        !            25:  * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
        !            26:  * SOFTWARE.
        !            27:  */
        !            28: 
        !            29: /* File: TextDisp.h */
        !            30: 
        !            31: #define MAXCUT 30000   /* Maximum number of characters that can be cut. */
        !            32: 
        !            33: #define LF     0x0a
        !            34: #define CR     0x0d
        !            35: #define TAB    0x09
        !            36: #define BS     0x08
        !            37: #define SP     0x20
        !            38: #define DEL    0x7f
        !            39: #define BSLASH '\\'
        !            40: 
        !            41: #define EDITDONE 0
        !            42: #define EDITERROR 1
        !            43: #define POSITIONERROR 2
        !            44: 
        !            45: typedef enum {XtsdLeft, XtsdRight} ScanDirection;
        !            46: typedef enum {XtstPositions, XtstWhiteSpace, XtstEOL, XtstParagraph, XtstFile} ScanType;
        !            47: 
        !            48: typedef struct {
        !            49:     int  firstPos;
        !            50:     int  length;
        !            51:     char *ptr;
        !            52:     } XtTextBlock, *TextBlockPtr;
        !            53: 
        !            54: typedef struct {
        !            55:     int                    (*read)();
        !            56:     int                    (*replace)();
        !            57:     XtTextPosition  (*getLastPos)();
        !            58:     int                    (*setLastPos)();
        !            59:     XtTextPosition  (*scan)();
        !            60:     XtEditType      (*editType)();
        !            61:     int                    *data;
        !            62:     } XtTextSource, *TextSourcePtr;
        !            63: 
        !            64: typedef struct {
        !            65:     Display *dpy;
        !            66:     int (*display)();
        !            67:     int (*insertCursor)();
        !            68:     int (*clearToBackground)();
        !            69:     int (*findPosition)();
        !            70:     int (*findDistance)();
        !            71:     int (*resolve)();
        !            72:     int (*maxLines)();
        !            73:     int (*maxHeight)();
        !            74:     int *data;
        !            75:     } XtTextSink, *TextSinkPtr;
        !            76: 
        !            77: /* displayable text management data structures */
        !            78: 
        !            79: typedef struct {
        !            80:     XtTextPosition position;
        !            81:     Position x, y, endX;
        !            82:     } LineTableEntry, *LineTableEntryPtr;
        !            83: 
        !            84: /* Line Tables are n+1 long - last position displayed is in last lt entry */
        !            85: typedef struct {
        !            86:     XtTextPosition  top;       /* Top of the displayed text.           */
        !            87:     int                    lines;      /* How many lines in this table.        */
        !            88:     LineTableEntry  *info;     /* A dynamic array, one entry per line  */
        !            89:     } LineTable, *LineTablePtr;
        !            90: 
        !            91: typedef enum {XtisOn, XtisOff} InsertState;
        !            92: 
        !            93: typedef enum {XtselectNull, XtselectPosition, XtselectChar, XtselectWord,
        !            94:     XtselectLine, XtselectParagraph, XtselectAll} XtSelectType;
        !            95: 
        !            96: typedef enum {XtsmTextSelect, XtsmTextExtend} SelectionMode;
        !            97: 
        !            98: typedef enum {XtactionStart, XtactionAdjust, XtactionEnd} SelectionAction;
        !            99: 
        !           100: typedef struct {
        !           101:     XtTextPosition left, right;
        !           102:     XtSelectType  type;
        !           103: } TextSelection;
        !           104: 
        !           105: #define IsPositionVisible(ctx, pos)    (pos >= ctx->lt.info[0].position && \
        !           106:            pos <= ctx->lt.info[ctx->lt.lines].position)
        !           107: 
        !           108: /* Private Text Definitions */
        !           109: 
        !           110: typedef int (*ActionProc)();
        !           111: 
        !           112: typedef XtSelectType SelectionArray[20];
        !           113: 
        !           114: typedef struct  {
        !           115:     Display        *dpy;
        !           116:     XtTextSource    *source;
        !           117:     XtTextSink      *sink;
        !           118:     LineTable       lt;
        !           119:     XtTextPosition  insertPos;
        !           120:     TextSelection   s;
        !           121:     ScanDirection   extendDir;
        !           122:     TextSelection   origSel;       /* the selection being modified */
        !           123:     SelectionArray  sarray;        /* Array to cycle for selections. */
        !           124:     Dimension       width, height;  /* Dimensions of the text subwindow */
        !           125:     Dimension      leftmargin;     /* Width of left margin. */
        !           126:     int                    options;        /* wordbreak, scroll, etc. */
        !           127:     unsigned short  lasttime;       /* timestamp of last processed action */
        !           128:     unsigned short  time;          /* timestamp of last key or button action */
        !           129:     Position       x, y;           /* x, y coords for key or button action */
        !           130:     Window         sbar;           /* The vertical scroll bar (none = 0).  */
        !           131:     Window         outer;          /* Parent of scrollbar & text (if any) */
        !           132:     Window         w;              /* Actual window containing text.  */
        !           133:     XtTextPosition  *updateFrom;    /* Array of start positions for update. */
        !           134:     XtTextPosition  *updateTo;      /* Array of end positions for update. */
        !           135:     int                    numranges;      /* How many update ranges there are. */
        !           136:     int                    maxranges;      /* How many update ranges we've space for */
        !           137:     Boolean        showposition;   /* True if we need to show the position. */
        !           138:     XtTextPosition  lastPos;       /* Last position of source. */
        !           139:     Window         dialog;         /* Window containing dialog, if any. */
        !           140:     Dimension      borderWidth;    /* width of window border (if any) */
        !           141:     XtEventsPtr     eventTable;     /* Table for translation mgr. */
        !           142:     caddr_t        state;          /* translation manager state handle */
        !           143:     Pixel          border, background;     /* window colors */
        !           144:     GC                     gc;
        !           145:     Boolean        hasfocus;   /* TRUE if we currently have input focus. */
        !           146: } TextContext, *TextContextPtr;

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