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 typedef struct edit_book_mark_t edit_book_mark_t;
  32 struct edit_book_mark_t
  33 {
  34     long line;                  /* line number */
  35     int c;                      /* color */
  36     edit_book_mark_t *next;
  37     edit_book_mark_t *prev;
  38 };
  39
  40 typedef struct edit_syntax_rule_t edit_syntax_rule_t;
  41 struct edit_syntax_rule_t
  42 {
  43     unsigned short keyword;
  44     off_t end;
  45     unsigned char context;
  46     unsigned char _context;
  47     unsigned char border;
  48 };
  49
  50 /*
  51  * State of WEdit window
  52  * MCEDIT_DRAG_NORMAL - window is in normal mode
  53  * MCEDIT_DRAG_MOVE   - window is being moved
  54  * MCEDIT_DRAG_RESIZE - window is being resized
  55  */
  56 typedef enum
  57 {
  58     MCEDIT_DRAG_NORMAL = 0,
  59     MCEDIT_DRAG_MOVE,
  60     MCEDIT_DRAG_RESIZE
  61 } mcedit_drag_state_t;
  62
  63 struct WEdit
  64 {
  65     Widget widget;
  66     mcedit_drag_state_t drag_state;
  67     int drag_state_start;       /* save cursor position before window moving */
  68
  69     /* save location before move/resize or toggle to fullscreen */
  70     int x_prev, y_prev;
  71     int cols_prev, lines_prev;
  72
  73     vfs_path_t *filename_vpath; /* Name of the file */
  74     vfs_path_t *dir_vpath;      /* NULL if filename is absolute */
  75
  76     /* dynamic buffers and cursor position for editor: */
  77     off_t curs1;                /* position of the cursor from the beginning of the file. */
  78     off_t curs2;                /* position from the end of the file */
  79     unsigned char *buffers1[MAXBUFF + 1];       /* all data up to curs1 */
  80     unsigned char *buffers2[MAXBUFF + 1];       /* all data from end of file down to curs2 */
  81
  82 #ifdef HAVE_CHARSET
  83     /* multibyte support */
  84     gboolean utf8;              /* It's multibyte file codeset */
  85     GIConv converter;
  86     char charbuf[4 + 1];
  87     int charpoint;
  88 #endif
  89
  90     /* search handler */
  91     mc_search_t *search;
  92     int replace_mode;
  93     /* is search conditions should be started from BOL(^) or ended with EOL($) */
  94     edit_search_line_t search_line_type;
  95
  96     char *last_search_string;   /* String that have been searched */
  97     off_t search_start;         /* First character to start searching from */
  98     unsigned long found_len;    /* Length of found string or 0 if none was found */
  99     off_t found_start;          /* the found word from a search - start position */
 100
 101     /* display information */
 102     off_t last_byte;            /* Last byte of file */
 103     long start_display;         /* First char displayed */
 104     long start_col;             /* First displayed column, negative */
 105     long max_column;            /* The maximum cursor position ever reached used to calc hori scroll bar */
 106     long curs_row;              /* row position of cursor on the screen */
 107     long curs_col;              /* column position on screen */
 108     long over_col;              /* pos after '\n' */
 109     int force;                  /* how much of the screen do we redraw? */
 110     unsigned int overwrite:1;   /* Overwrite on type mode (as opposed to insert) */
 111     unsigned int modified:1;    /* File has been modified and needs saving */
 112     unsigned int loading_done:1;        /* File has been loaded into the editor */
 113     unsigned int locked:1;      /* We hold lock on current file */
 114     unsigned int delete_file:1; /* New file, needs to be deleted unless modified */
 115     unsigned int highlight:1;   /* There is a selected block */
 116     unsigned int column_highlight:1;
 117     unsigned int fullscreen:1;  /* Is window fullscreen or not */
 118     long prev_col;              /* recent column position of the cursor - used when moving
 119                                    up or down past lines that are shorter than the current line */
 120     long curs_line;             /* line number of the cursor. */
 121     long start_line;            /* line number of the top of the page */
 122
 123     /* file info */
 124     long total_lines;           /* total lines in the file */
 125     off_t mark1;                /* position of highlight start */
 126     off_t mark2;                /* position of highlight end */
 127     off_t end_mark_curs;        /* position of cursor after end of highlighting */
 128     long column1;               /* position of column highlight start */
 129     long column2;               /* position of column highlight end */
 130     off_t bracket;              /* position of a matching bracket */
 131
 132     /* cache speedup for line lookups */
 133     gboolean caches_valid;
 134     long line_numbers[N_LINE_CACHES];
 135     off_t line_offsets[N_LINE_CACHES];
 136
 137     edit_book_mark_t *book_mark;
 138     GArray *serialized_bookmarks;
 139
 140     /* undo stack and pointers */
 141     unsigned long undo_stack_pointer;
 142     long *undo_stack;
 143     unsigned long undo_stack_size;
 144     unsigned long undo_stack_size_mask;
 145     unsigned long undo_stack_bottom;
 146     unsigned int undo_stack_disable:1;  /* If not 0, don't save events in the undo stack */
 147
 148     unsigned long redo_stack_pointer;
 149     long *redo_stack;
 150     unsigned long redo_stack_size;
 151     unsigned long redo_stack_size_mask;
 152     unsigned long redo_stack_bottom;
 153     unsigned int redo_stack_reset:1;    /* If 1, need clear redo stack */
 154
 155     struct stat stat1;          /* Result of mc_fstat() on the file */
 156     unsigned int skip_detach_prompt:1;  /* Do not prompt whether to detach a file anymore */
 157
 158     /* syntax higlighting */
 159     GSList *syntax_marker;
 160     struct context_rule **rules;
 161     off_t last_get_rule;
 162     edit_syntax_rule_t rule;
 163     char *syntax_type;          /* description of syntax highlighting type being used */
 164     GTree *defines;             /* List of defines */
 165     gboolean is_case_insensitive;       /* selects language case sensitivity */
 166
 167     /* line break */
 168     LineBreaks lb;
 169     gboolean extmod;
 170
 171     char *labels[10];
 172 };
 173
 174 /*** global variables defined in .c file *********************************************************/
 175
 176 /*** declarations of public functions ************************************************************/
 177
 178 /*** inline functions ****************************************************************************/
 179 #endif /* MC__EDIT_WIDGET_H */