components/x11/libXaw4/src/Xaw3_1TextP.h

   1 /*
   2 * $XConsortium: TextP.h,v 1.42 89/11/21 15:48:03 swick Exp $
   3 */
   4
   5
   6 /***********************************************************
   7 Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts,
   8 and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
   9
  10                         All Rights Reserved
  11
  12 Permission to use, copy, modify, and distribute this software and its
  13 documentation for any purpose and without fee is hereby granted,
  14 provided that the above copyright notice appear in all copies and that
  15 both that copyright notice and this permission notice appear in
  16 supporting documentation, and that the names of Digital or MIT not be
  17 used in advertising or publicity pertaining to distribution of the
  18 software without specific, written prior permission.
  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
  30 #ifndef _XawTextP_h
  31 #define _XawTextP_h
  32
  33 #include <./Xaw3_1Text.h>
  34 #include <./Xaw3_1SimpleP.h>
  35
  36 /****************************************************************
  37  *
  38  * Text widget private
  39  *
  40  ****************************************************************/
  41 #define MAXCUT  30000   /* Maximum number of characters that can be cut. */
  42
  43 #define abs(x)  (((x) < 0) ? (-(x)) : (x))
  44
  45 #define GETLASTPOS  XawTextSourceScan(ctx->text.source, 0, \
  46                                       XawstAll, XawsdRight, 1, TRUE)
  47
  48 #define zeroPosition ((XawTextPosition) 0)
  49
  50 extern XtActionsRec textActionsTable[];
  51 extern Cardinal textActionsTableCount;
  52
  53 #define LF      0x0a
  54 #define CR      0x0d
  55 #define TAB     0x09
  56 #define BS      0x08
  57 #define SP      0x20
  58 #define DEL     0x7f
  59 #define BSLASH  '\\'
  60
  61 /* constants that subclasses may want to know */
  62 #define DEFAULT_TEXT_HEIGHT ((Dimension)~0)
  63
  64 /* displayable text management data structures */
  65
  66 typedef struct {
  67   XawTextPosition position;
  68   Position y;
  69   Dimension textWidth;
  70 } XawTextLineTableEntry, *XawTextLineTableEntryPtr;
  71
  72 typedef struct {
  73     XawTextPosition   left, right;
  74     XawTextSelectType type;
  75     Atom*            selections;
  76     int              atom_count;
  77     int              array_size;
  78 } XawTextSelection;
  79
  80 /* Line Tables are n+1 long - last position displayed is in last lt entry */
  81 typedef struct {
  82   XawTextPosition        top;   /* Top of the displayed text.           */
  83   int                    lines; /* How many lines in this table.        */
  84   XawTextLineTableEntry *info;  /* A dynamic array, one entry per line  */
  85 } XawTextLineTable, *XawTextLineTablePtr;
  86
  87
  88 typedef struct _XawTextMargin {
  89   Position left, right, top, bottom;
  90 } XawTextMargin;
  91
  92 #define VMargins(ctx) ( (ctx)->text.margin.top + (ctx)->text.margin.bottom )
  93 #define HMargins(ctx) ( (ctx)->text.margin.left + (ctx)->text.margin.right )
  94
  95 #define IsPositionVisible(ctx, pos) \
  96                 (pos >= ctx->text.lt.info[0].position && \
  97                  pos < ctx->text.lt.info[ctx->text.lt.lines].position)
  98
  99 /*
 100  * Search & Replace data structure.
 101  */
 102
 103 struct SearchAndReplace {
 104   Boolean selection_changed;    /* flag so that the selection cannot be
 105                                    changed out from underneath query-replace.*/
 106   Widget search_popup;          /* The poppup widget that allows searches.*/
 107   Widget label1;                /* The label widgets for the search window. */
 108   Widget label2;
 109   Widget left_toggle;           /* The left search toggle radioGroup. */
 110   Widget right_toggle;          /* The right search toggle radioGroup. */
 111   Widget rep_label;             /* The Replace label string. */
 112   Widget rep_text;              /* The Replace text field. */
 113   Widget search_text;           /* The Search text field. */
 114   Widget rep_one;               /* The Replace one button. */
 115   Widget rep_all;               /* The Replace all button. */
 116 };
 117
 118 /* Private Text Definitions */
 119
 120 typedef int (*ActionProc)();
 121
 122 /* New fields for the Text widget class record */
 123
 124 typedef struct {int empty;} TextClassPart;
 125
 126 /* Full class record declaration */
 127 typedef struct _TextClassRec {
 128     CoreClassPart       core_class;
 129     SimpleClassPart     simple_class;
 130     TextClassPart       text_class;
 131 } TextClassRec;
 132
 133 extern TextClassRec textClassRec;
 134
 135 /* New fields for the Text widget record */
 136 typedef struct _TextPart {
 137     /* resources */
 138
 139     Widget              source, sink;
 140     XawTextPosition     insertPos;
 141     XawTextSelection    s;
 142     XawTextSelectType   *sarray;           /* Array to cycle for selections. */
 143     int                 options;             /* wordbreak, scroll, etc. */
 144     int                 dialog_horiz_offset; /* position for popup dialog */
 145     int                 dialog_vert_offset;  /* position for popup dialog */
 146     Boolean             display_caret;       /* insertion pt visible iff T */
 147     Boolean             auto_fill;           /* Auto fill mode? */
 148     XawTextScrollMode   scroll_vert, scroll_horiz; /*what type of scrollbars.*/
 149     XawTextWrapMode     wrap;            /* The type of wrapping. */
 150     XawTextResizeMode   resize;              /* what to resize */
 151     XawTextMargin       r_margin;            /* The real margins. */
 152
 153     /* private state */
 154
 155     XawTextMargin       margin;            /* The current margins. */
 156     XawTextLineTable    lt;
 157     XawTextScanDirection extendDir;
 158     XawTextSelection    origSel;    /* the selection being modified */
 159     Time            lasttime;       /* timestamp of last processed action */
 160     Time            time;           /* time of last key or button action */
 161     Position        ev_x, ev_y;     /* x, y coords for key or button action */
 162     Widget          vbar, hbar;     /* The scroll bars (none = NULL). */
 163     struct SearchAndReplace * search;/* Search and replace structure. */
 164     Widget          file_insert;    /* The file insert popup widget. */
 165     XawTextPosition  *updateFrom;   /* Array of start positions for update. */
 166     XawTextPosition  *updateTo;     /* Array of end positions for update. */
 167     int             numranges;      /* How many update ranges there are. */
 168     int             maxranges;      /* How many ranges we have space for */
 169     XawTextPosition  lastPos;       /* Last position of source. */
 170     GC              gc;
 171     Boolean         showposition;   /* True if we need to show the position. */
 172     Boolean         hasfocus;       /* TRUE if we currently have input focus.*/
 173     Boolean         update_disabled; /* TRUE if display updating turned off */
 174     Boolean         single_char;    /* Single character replaced. */
 175     XawTextPosition  old_insert;    /* Last insertPos for batched updates */
 176     short           mult;           /* Multiplier. */
 177
 178     /* private state, shared w/Source and Sink */
 179     Boolean         redisplay_needed; /* in SetValues */
 180
 181 } TextPart;
 182
 183 /*************************************************************
 184  *
 185  * Resource types private to Text widget.
 186  *
 187  *************************************************************/
 188
 189 #define XtRScrollMode "ScrollMode"
 190 #define XtRWrapMode "WrapMode"
 191 #define XtRResizeMode "ResizeMode"
 192
 193 /****************************************************************
 194  *
 195  * Full instance record declaration
 196  *
 197  ****************************************************************/
 198
 199 typedef struct _TextRec {
 200     CorePart    core;
 201     SimplePart  simple;
 202     TextPart    text;
 203 } TextRec;
 204
 205 #ifdef XAW_BC
 206 /*************************************************************
 207  * For Compatibility only.                                   */
 208
 209 #define XtTextLineTable                 XawTextLineTable
 210 #define XtTextLineTablePtr              XawTextLineTablePtr
 211 #define XtTextLineTableEntry            XawTextLineTableEntry
 212 #define XtTextLineTableEntryPtr         XawTextLineTableEntryPtr
 213
 214 /*************************************************************/
 215 #endif /* XAW_BC */
 216
 217 #endif /* _XawTextP_h */