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 #include "editbuffer.h"
  13
  14 /*** typedefs(not structures) and defined constants **********************************************/
  15
  16 #define N_LINE_CACHES 32
  17
  18 /*** enums ***************************************************************************************/
  19
  20 /**
  21     enum for store the search conditions check results.
  22     (if search condition have BOL(^) or EOL ($) regexp checial characters).
  23 */
  24 typedef enum
  25 {
  26     AT_START_LINE = (1 << 0),
  27     AT_END_LINE = (1 << 1)
  28 } edit_search_line_t;
  29
  30 /*** structures declarations (and typedefs of structures)*****************************************/
  31
  32 typedef struct edit_book_mark_t edit_book_mark_t;
  33 struct edit_book_mark_t
  34 {
  35     long line;                  /* line number */
  36     int c;                      /* color */
  37     edit_book_mark_t *next;
  38     edit_book_mark_t *prev;
  39 };
  40
  41 typedef struct edit_syntax_rule_t edit_syntax_rule_t;
  42 struct edit_syntax_rule_t
  43 {
  44     unsigned short keyword;
  45     off_t end;
  46     unsigned char context;
  47     unsigned char _context;
  48     unsigned char border;
  49 };
  50
  51 /*
  52  * State of WEdit window
  53  * MCEDIT_DRAG_NONE   - window is in normal mode
  54  * MCEDIT_DRAG_MOVE   - window is being moved
  55  * MCEDIT_DRAG_RESIZE - window is being resized
  56  */
  57 typedef enum
  58 {
  59     MCEDIT_DRAG_NONE = 0,
  60     MCEDIT_DRAG_MOVE,
  61     MCEDIT_DRAG_RESIZE
  62 } mcedit_drag_state_t;
  63
  64 struct WEdit
  65 {
  66     Widget widget;
  67     mcedit_drag_state_t drag_state;
  68     int drag_state_start;       /* save cursor position before window moving */
  69
  70     /* save location before move/resize or toggle to fullscreen */
  71     int x_prev, y_prev;
  72     int cols_prev, lines_prev;
  73
  74     vfs_path_t *filename_vpath; /* Name of the file */
  75     vfs_path_t *dir_vpath;      /* NULL if filename is absolute */
  76
  77     /* dynamic buffers and cursor position for editor: */
  78     edit_buffer_t buffer;
  79
  80 #ifdef HAVE_CHARSET
  81     /* multibyte support */
  82     gboolean utf8;              /* It's multibyte file codeset */
  83     GIConv converter;
  84     char charbuf[4 + 1];
  85     int charpoint;
  86 #endif
  87
  88     /* search handler */
  89     mc_search_t *search;
  90     int replace_mode;
  91     /* is search conditions should be started from BOL(^) or ended with EOL($) */
  92     edit_search_line_t search_line_type;
  93
  94     char *last_search_string;   /* String that have been searched */
  95     off_t search_start;         /* First character to start searching from */
  96     unsigned long found_len;    /* Length of found string or 0 if none was found */
  97     off_t found_start;          /* the found word from a search - start position */
  98
  99     /* display information */
 100     long start_display;         /* First char displayed */
 101     long start_col;             /* First displayed column, negative */
 102     long max_column;            /* The maximum cursor position ever reached used to calc hori scroll bar */
 103     long curs_row;              /* row position of cursor on the screen */
 104     long curs_col;              /* column position on screen */
 105     long over_col;              /* pos after '\n' */
 106     int force;                  /* how much of the screen do we redraw? */
 107     unsigned int overwrite:1;   /* Overwrite on type mode (as opposed to insert) */
 108     unsigned int modified:1;    /* File has been modified and needs saving */
 109     unsigned int loading_done:1;        /* File has been loaded into the editor */
 110     unsigned int locked:1;      /* We hold lock on current file */
 111     unsigned int delete_file:1; /* New file, needs to be deleted unless modified */
 112     unsigned int highlight:1;   /* There is a selected block */
 113     unsigned int column_highlight:1;
 114     unsigned int fullscreen:1;  /* Is window fullscreen or not */
 115     long prev_col;              /* recent column position of the cursor - used when moving
 116                                    up or down past lines that are shorter than the current line */
 117     long start_line;            /* line number of the top of the page */
 118
 119     /* file info */
 120     off_t mark1;                /* position of highlight start */
 121     off_t mark2;                /* position of highlight end */
 122     off_t end_mark_curs;        /* position of cursor after end of highlighting */
 123     long column1;               /* position of column highlight start */
 124     long column2;               /* position of column highlight end */
 125     off_t bracket;              /* position of a matching bracket */
 126     off_t last_bracket;         /* previous position of a matching bracket */
 127
 128     /* cache speedup for line lookups */
 129     gboolean caches_valid;
 130     long line_numbers[N_LINE_CACHES];
 131     off_t line_offsets[N_LINE_CACHES];
 132
 133     edit_book_mark_t *book_mark;
 134     GArray *serialized_bookmarks;
 135
 136     /* undo stack and pointers */
 137     unsigned long undo_stack_pointer;
 138     long *undo_stack;
 139     unsigned long undo_stack_size;
 140     unsigned long undo_stack_size_mask;
 141     unsigned long undo_stack_bottom;
 142     unsigned int undo_stack_disable:1;  /* If not 0, don't save events in the undo stack */
 143
 144     unsigned long redo_stack_pointer;
 145     long *redo_stack;
 146     unsigned long redo_stack_size;
 147     unsigned long redo_stack_size_mask;
 148     unsigned long redo_stack_bottom;
 149     unsigned int redo_stack_reset:1;    /* If 1, need clear redo stack */
 150
 151     struct stat stat1;          /* Result of mc_fstat() on the file */
 152     unsigned int skip_detach_prompt:1;  /* Do not prompt whether to detach a file anymore */
 153
 154     /* syntax higlighting */
 155     GSList *syntax_marker;
 156     GPtrArray *rules;
 157     off_t last_get_rule;
 158     edit_syntax_rule_t rule;
 159     char *syntax_type;          /* description of syntax highlighting type being used */
 160     GTree *defines;             /* List of defines */
 161     gboolean is_case_insensitive;       /* selects language case sensitivity */
 162
 163     /* line break */
 164     LineBreaks lb;
 165     gboolean extmod;
 166 };
 167
 168 /*** global variables defined in .c file *********************************************************/
 169
 170 /*** declarations of public functions ************************************************************/
 171
 172 /*** inline functions ****************************************************************************/
 173 #endif /* MC__EDIT_WIDGET_H */