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     int 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 /*
  49  * State of WEdit window
  50  * MCEDIT_DRAG_NORMAL - window is in normal mode
  51  * MCEDIT_DRAG_MOVE   - window is being moved
  52  * MCEDIT_DRAG_RESIZE - window is being resized
  53  */
  54 typedef enum
  55 {
  56     MCEDIT_DRAG_NORMAL = 0,
  57     MCEDIT_DRAG_MOVE,
  58     MCEDIT_DRAG_RESIZE
  59 } mcedit_drag_state_t;
  60
  61 struct WEdit
  62 {
  63     Widget widget;
  64     mcedit_drag_state_t drag_state;
  65     int drag_state_start;       /* save cursor position before window moving */
  66
  67     /* save location before move/resize or toggle to fullscreen */
  68     int x_prev, y_prev;
  69     int cols_prev, lines_prev;
  70
  71     vfs_path_t *filename_vpath; /* Name of the file */
  72     vfs_path_t *dir_vpath;      /* NULL if filename is absolute */
  73
  74     /* dynamic buffers and cursor position for editor: */
  75     long curs1;                 /* position of the cursor from the beginning of the file. */
  76     long curs2;                 /* position from the end of the file */
  77     unsigned char *buffers1[MAXBUFF + 1];       /* all data up to curs1 */
  78     unsigned char *buffers2[MAXBUFF + 1];       /* all data from end of file down to curs2 */
  79
  80     /* UTF8 */
  81     char charbuf[4 + 1];
  82     int charpoint;
  83
  84     /* search handler */
  85     mc_search_t *search;
  86     int replace_mode;
  87     /* is search conditions should be started from BOL(^) or ended with EOL($) */
  88     edit_search_line_t search_line_type;
  89
  90     char *last_search_string;   /* String that have been searched */
  91     long search_start;          /* First character to start searching from */
  92     int found_len;              /* Length of found string or 0 if none was found */
  93     long found_start;           /* the found word from a search - start position */
  94
  95     /* display information */
  96     long last_byte;             /* Last byte of file */
  97     long start_display;         /* First char displayed */
  98     long start_col;             /* First displayed column, negative */
  99     long max_column;            /* The maximum cursor position ever reached used to calc hori scroll bar */
 100     long curs_row;              /* row position of cursor on the screen */
 101     long curs_col;              /* column position on screen */
 102     long over_col;              /* pos after '\n' */
 103     int force;                  /* how much of the screen do we redraw? */
 104     unsigned int overwrite:1;   /* Overwrite on type mode (as opposed to insert) */
 105     unsigned int modified:1;    /* File has been modified and needs saving */
 106     unsigned int loading_done:1;        /* File has been loaded into the editor */
 107     unsigned int locked:1;      /* We hold lock on current file */
 108     unsigned int delete_file:1; /* New file, needs to be deleted unless modified */
 109     unsigned int highlight:1;   /* There is a selected block */
 110     unsigned int column_highlight:1;
 111     unsigned int utf8:1;        /* It's multibyte file codeset */
 112     unsigned int fullscreen:1;  /* Is window fullscreen or not */
 113     long prev_col;              /* recent column position of the cursor - used when moving
 114                                    up or down past lines that are shorter than the current line */
 115     long curs_line;             /* line number of the cursor. */
 116     long start_line;            /* line number of the top of the page */
 117
 118     /* file info */
 119     long total_lines;           /* total lines in the file */
 120     long mark1;                 /* position of highlight start */
 121     long mark2;                 /* position of highlight end */
 122     long end_mark_curs;         /* position of cursor after end of highlighting */
 123     int column1;                /* position of column highlight start */
 124     int column2;                /* position of column highlight end */
 125     long bracket;               /* position of a matching bracket */
 126
 127     /* cache speedup for line lookups */
 128     gboolean caches_valid;
 129     int line_numbers[N_LINE_CACHES];
 130     long line_offsets[N_LINE_CACHES];
 131
 132     struct _book_mark *book_mark;
 133     GArray *serialized_bookmarks;
 134
 135     /* undo stack and pointers */
 136     unsigned long undo_stack_pointer;
 137     long *undo_stack;
 138     unsigned long undo_stack_size;
 139     unsigned long undo_stack_size_mask;
 140     unsigned long undo_stack_bottom;
 141     unsigned int undo_stack_disable:1;  /* If not 0, don't save events in the undo stack */
 142
 143     unsigned long redo_stack_pointer;
 144     long *redo_stack;
 145     unsigned long redo_stack_size;
 146     unsigned long redo_stack_size_mask;
 147     unsigned long redo_stack_bottom;
 148     unsigned int redo_stack_reset:1;    /* If 1, need clear redo stack */
 149
 150     struct stat stat1;          /* Result of mc_fstat() on the file */
 151     unsigned int skip_detach_prompt:1;  /* Do not prompt whether to detach a file anymore */
 152
 153     /* syntax higlighting */
 154     struct _syntax_marker *syntax_marker;
 155     struct context_rule **rules;
 156     long last_get_rule;
 157     struct syntax_rule rule;
 158     char *syntax_type;          /* description of syntax highlighting type being used */
 159     GTree *defines;             /* List of defines */
 160     gboolean is_case_insensitive;       /* selects language case sensitivity */
 161
 162     /* user map stuff */
 163     GIConv converter;
 164
 165     /* line break */
 166     LineBreaks lb;
 167     gboolean extmod;
 168
 169     char *labels[10];
 170
 171 };
 172
 173 /*** global variables defined in .c file *********************************************************/
 174
 175 /*** declarations of public functions ************************************************************/
 176
 177 /*** inline functions ****************************************************************************/
 178 #endif /* MC__EDIT_WIDGET_H */