root/src/editor/editwidget.h

/*   */

INCLUDED FROM

   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 <limits.h>             /* MB_LEN_MAX */
   9 
  10 #include "lib/search.h"         /* mc_search_t */
  11 #include "lib/widget.h"         /* Widget */
  12 
  13 #include "edit-impl.h"
  14 #include "editbuffer.h"
  15 
  16 /*** typedefs(not structures) and defined constants **********************************************/
  17 
  18 #define N_LINE_CACHES 32
  19 
  20 /*** enums ***************************************************************************************/
  21 
  22 /*** structures declarations (and typedefs of structures)*****************************************/
  23 
  24 typedef struct edit_book_mark_t edit_book_mark_t;
  25 struct edit_book_mark_t
  26 {
  27     long line;                  /* line number */
  28     int c;                      /* color */
  29     edit_book_mark_t *next;
  30     edit_book_mark_t *prev;
  31 };
  32 
  33 typedef struct edit_syntax_rule_t edit_syntax_rule_t;
  34 struct edit_syntax_rule_t
  35 {
  36     unsigned short keyword;
  37     off_t end;
  38     unsigned char context;
  39     unsigned char _context;
  40     unsigned char border;
  41 };
  42 
  43 /*
  44  * State of WEdit window
  45  * MCEDIT_DRAG_NONE   - window is in normal mode
  46  * MCEDIT_DRAG_MOVE   - window is being moved
  47  * MCEDIT_DRAG_RESIZE - window is being resized
  48  */
  49 typedef enum
  50 {
  51     MCEDIT_DRAG_NONE = 0,
  52     MCEDIT_DRAG_MOVE,
  53     MCEDIT_DRAG_RESIZE
  54 } mcedit_drag_state_t;
  55 
  56 struct WEdit
  57 {
  58     Widget widget;
  59     mcedit_drag_state_t drag_state;
  60     int drag_state_start;       /* save cursor position before window moving */
  61 
  62     /* save location before move/resize or toggle to fullscreen */
  63     WRect loc_prev;
  64 
  65     vfs_path_t *filename_vpath; /* Name of the file */
  66     vfs_path_t *dir_vpath;      /* NULL if filename is absolute */
  67 
  68     /* dynamic buffers and cursor position for editor: */
  69     edit_buffer_t buffer;
  70 
  71 #ifdef HAVE_CHARSET
  72     /* multibyte support */
  73     gboolean utf8;              /* It's multibyte file codeset */
  74     GIConv converter;
  75     char charbuf[MB_LEN_MAX + 1];
  76     int charpoint;
  77 #endif
  78 
  79     /* search handler */
  80     mc_search_t *search;
  81     int replace_mode;
  82     /* whether search conditions should be started with BOL(^) or ended with EOL($) */
  83     mc_search_line_t search_line_type;
  84 
  85     char *last_search_string;   /* String that have been searched */
  86     off_t search_start;         /* First character to start searching from */
  87     unsigned long found_len;    /* Length of found string or 0 if none was found */
  88     off_t found_start;          /* the found word from a search - start position */
  89 
  90     /* display information */
  91     long start_display;         /* First char displayed */
  92     long start_col;             /* First displayed column, negative */
  93     long max_column;            /* The maximum cursor position ever reached used to calc hori scroll bar */
  94     long curs_row;              /* row position of cursor on the screen */
  95     long curs_col;              /* column position on screen */
  96     long over_col;              /* pos after '\n' */
  97     int force;                  /* how much of the screen do we redraw? */
  98     unsigned int overwrite:1;   /* Overwrite on type mode (as opposed to insert) */
  99     unsigned int modified:1;    /* File has been modified and needs saving */
 100     unsigned int loading_done:1;        /* File has been loaded into the editor */
 101     unsigned int locked:1;      /* We hold lock on current file */
 102     unsigned int delete_file:1; /* New file, needs to be deleted unless modified */
 103     unsigned int highlight:1;   /* There is a selected block */
 104     unsigned int column_highlight:1;
 105     unsigned int fullscreen:1;  /* Is window fullscreen or not */
 106     long prev_col;              /* recent column position of the cursor - used when moving
 107                                    up or down past lines that are shorter than the current line */
 108     long start_line;            /* line number of the top of the page */
 109 
 110     /* file info */
 111     off_t mark1;                /* position of highlight start */
 112     off_t mark2;                /* position of highlight end */
 113     off_t end_mark_curs;        /* position of cursor after end of highlighting */
 114     long column1;               /* position of column highlight start */
 115     long column2;               /* position of column highlight end */
 116     off_t bracket;              /* position of a matching bracket */
 117     off_t last_bracket;         /* previous position of a matching bracket */
 118 
 119     /* cache speedup for line lookups */
 120     gboolean caches_valid;
 121     long line_numbers[N_LINE_CACHES];
 122     off_t line_offsets[N_LINE_CACHES];
 123 
 124     edit_book_mark_t *book_mark;
 125     GArray *serialized_bookmarks;
 126 
 127     /* undo stack and pointers */
 128     unsigned long undo_stack_pointer;
 129     long *undo_stack;
 130     unsigned long undo_stack_size;
 131     unsigned long undo_stack_size_mask;
 132     unsigned long undo_stack_bottom;
 133     unsigned int undo_stack_disable:1;  /* If not 0, don't save events in the undo stack */
 134 
 135     unsigned long redo_stack_pointer;
 136     long *redo_stack;
 137     unsigned long redo_stack_size;
 138     unsigned long redo_stack_size_mask;
 139     unsigned long redo_stack_bottom;
 140     unsigned int redo_stack_reset:1;    /* If 1, need clear redo stack */
 141 
 142     struct stat stat1;          /* Result of mc_fstat() on the file */
 143     unsigned long attrs;        /* Result of mc_fgetflags() on the file */
 144     gboolean attrs_ok;          /* mc_fgetflags() == 0 */
 145 
 146     unsigned int skip_detach_prompt:1;  /* Do not prompt whether to detach a file anymore */
 147 
 148     /* syntax highlighting */
 149     GSList *syntax_marker;
 150     GPtrArray *rules;
 151     off_t last_get_rule;
 152     edit_syntax_rule_t rule;
 153     char *syntax_type;          /* description of syntax highlighting type being used */
 154     GTree *defines;             /* List of defines */
 155     gboolean is_case_insensitive;       /* selects language case sensitivity */
 156 
 157     /* line break */
 158     LineBreaks lb;
 159 };
 160 
 161 /*** global variables defined in .c file *********************************************************/
 162 
 163 /*** declarations of public functions ************************************************************/
 164 
 165 /*** inline functions ****************************************************************************/
 166 #endif /* MC__EDIT_WIDGET_H */

/*   */