src/editor/editwidget.h

   1 /** \file
   2  *  \brief Header: editor widget WEdit
   3  */
   4
   5 #ifndef MC__EDIT_WIDGET_H
   6 #define MC__EDIT_WIDGET_H
   7
   8 #include "lib/search.h"         /* mc_search_t */
   9 #include "lib/widget.h"         /* Widget */
  10
  11 #include "edit-impl.h"
  12
  13 /*** typedefs(not structures) and defined constants **********************************************/
  14
  15 #define N_LINE_CACHES 32
  16
  17 /*** enums ***************************************************************************************/
  18
  19 /**
  20     enum for store the search conditions check results.
  21     (if search condition have BOL(^) or EOL ($) regexp checial characters).
  22 */
  23 typedef enum
  24 {
  25     AT_START_LINE = (1 << 0),
  26     AT_END_LINE = (1 << 1)
  27 } edit_search_line_t;
  28
  29 /*** structures declarations (and typedefs of structures)*****************************************/
  30
  31 struct _book_mark
  32 {
  33     long line;                  /* line number */
  34     int c;                      /* color */
  35     struct _book_mark *next;
  36     struct _book_mark *prev;
  37 };
  38
  39 struct syntax_rule
  40 {
  41     unsigned short keyword;
  42     unsigned char end;
  43     unsigned char context;
  44     unsigned char _context;
  45     unsigned char border;
  46 };
  47
  48 struct WEdit
  49 {
  50     Widget widget;
  51
  52     vfs_path_t *filename_vpath; /* Name of the file */
  53     vfs_path_t *dir_vpath;      /* NULL if filename is absolute */
  54
  55     /* dynamic buffers and cursor position for editor: */
  56     off_t curs1;                /* position of the cursor from the beginning of the file. */
  57     off_t curs2;                /* position from the end of the file */
  58     unsigned char *buffers1[MAXBUFF + 1];       /* all data up to curs1 */
  59     unsigned char *buffers2[MAXBUFF + 1];       /* all data from end of file down to curs2 */
  60
  61 #ifdef HAVE_CHARSET
  62     /* multibyte support */
  63     gboolean utf8;              /* It's multibyte file codeset */
  64     GIConv converter;
  65     char charbuf[4 + 1];
  66     int charpoint;
  67 #endif
  68
  69     /* search handler */
  70     mc_search_t *search;
  71     int replace_mode;
  72     /* is search conditions should be started from BOL(^) or ended with EOL($) */
  73     edit_search_line_t search_line_type;
  74
  75     char *last_search_string;   /* String that have been searched */
  76     off_t search_start;         /* First character to start searching from */
  77     unsigned long found_len;    /* Length of found string or 0 if none was found */
  78     off_t found_start;          /* the found word from a search - start position */
  79
  80     /* display information */
  81     off_t last_byte;            /* Last byte of file */
  82     long start_display;         /* First char displayed */
  83     long start_col;             /* First displayed column, negative */
  84     long max_column;            /* The maximum cursor position ever reached used to calc hori scroll bar */
  85     long curs_row;              /* row position of cursor on the screen */
  86     long curs_col;              /* column position on screen */
  87     long over_col;              /* pos after '\n' */
  88     int force;                  /* how much of the screen do we redraw? */
  89     unsigned int overwrite:1;   /* Overwrite on type mode (as opposed to insert) */
  90     unsigned int modified:1;    /* File has been modified and needs saving */
  91     unsigned int loading_done:1;        /* File has been loaded into the editor */
  92     unsigned int locked:1;      /* We hold lock on current file */
  93     unsigned int delete_file:1; /* New file, needs to be deleted unless modified */
  94     unsigned int highlight:1;   /* There is a selected block */
  95     unsigned int column_highlight:1;
  96     long prev_col;              /* recent column position of the cursor - used when moving
  97                                    up or down past lines that are shorter than the current line */
  98     long curs_line;             /* line number of the cursor. */
  99     long start_line;            /* line number of the top of the page */
 100
 101     /* file info */
 102     long total_lines;           /* total lines in the file */
 103     off_t mark1;                /* position of highlight start */
 104     off_t mark2;                /* position of highlight end */
 105     off_t end_mark_curs;        /* position of cursor after end of highlighting */
 106     long column1;               /* position of column highlight start */
 107     long column2;               /* position of column highlight end */
 108     off_t bracket;              /* position of a matching bracket */
 109
 110     /* cache speedup for line lookups */
 111     gboolean caches_valid;
 112     long line_numbers[N_LINE_CACHES];
 113     off_t line_offsets[N_LINE_CACHES];
 114
 115     struct _book_mark *book_mark;
 116     GArray *serialized_bookmarks;
 117
 118     /* undo stack and pointers */
 119     unsigned long undo_stack_pointer;
 120     long *undo_stack;
 121     unsigned long undo_stack_size;
 122     unsigned long undo_stack_size_mask;
 123     unsigned long undo_stack_bottom;
 124     unsigned int undo_stack_disable:1;  /* If not 0, don't save events in the undo stack */
 125
 126     unsigned long redo_stack_pointer;
 127     long *redo_stack;
 128     unsigned long redo_stack_size;
 129     unsigned long redo_stack_size_mask;
 130     unsigned long redo_stack_bottom;
 131     unsigned int redo_stack_reset:1;    /* If 1, need clear redo stack */
 132
 133     struct stat stat1;          /* Result of mc_fstat() on the file */
 134     unsigned int skip_detach_prompt:1;  /* Do not prompt whether to detach a file anymore */
 135
 136     /* syntax higlighting */
 137     struct _syntax_marker *syntax_marker;
 138     struct context_rule **rules;
 139     long last_get_rule;
 140     struct syntax_rule rule;
 141     char *syntax_type;          /* description of syntax highlighting type being used */
 142     GTree *defines;             /* List of defines */
 143     gboolean is_case_insensitive;       /* selects language case sensitivity */
 144
 145     /* line break */
 146     LineBreaks lb;
 147     gboolean extmod;
 148
 149     char *labels[10];
 150 };
 151
 152 /*** global variables defined in .c file *********************************************************/
 153
 154 /*** declarations of public functions ************************************************************/
 155
 156 /*** inline functions ****************************************************************************/
 157 #endif /* MC__EDIT_WIDGET_H */