Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

286 lines (236 sloc) 8.457 kb
/*
* Internals of the Terminal structure, for those other modules
* which need to look inside it. It would be nice if this could be
* folded back into terminal.c in future, with an abstraction layer
* to handle everything that other modules need to know about it;
* but for the moment, this will do.
*/
#ifndef PUTTY_TERMINAL_H
#define PUTTY_TERMINAL_H
#include "tree234.h"
struct beeptime {
struct beeptime *next;
unsigned long ticks;
};
typedef struct {
int y, x;
} pos;
#ifdef OPTIMISE_SCROLL
struct scrollregion {
struct scrollregion *next;
int topline; /* Top line of scroll region. */
int botline; /* Bottom line of scroll region. */
int lines; /* Number of lines to scroll by - +ve is forwards. */
};
#endif /* OPTIMISE_SCROLL */
typedef struct termchar termchar;
typedef struct termline termline;
struct termchar {
/*
* Any code in terminal.c which definitely needs to be changed
* when extra fields are added here is labelled with a comment
* saying FULL-TERMCHAR.
*/
unsigned long chr;
unsigned long attr;
/*
* The cc_next field is used to link multiple termchars
* together into a list, so as to fit more than one character
* into a character cell (Unicode combining characters).
*
* cc_next is a relative offset into the current array of
* termchars. I.e. to advance to the next character in a list,
* one does `tc += tc->next'.
*
* Zero means end of list.
*/
int cc_next;
};
struct termline {
unsigned short lattr;
int cols; /* number of real columns on the line */
int size; /* number of allocated termchars
* (cc-lists may make this > cols) */
int temporary; /* TRUE if decompressed from scrollback */
int cc_free; /* offset to first cc in free list */
struct termchar *chars;
};
struct bidi_cache_entry {
int width;
struct termchar *chars;
int *forward, *backward; /* the permutations of line positions */
};
struct terminal_tag {
int compatibility_level;
tree234 *scrollback; /* lines scrolled off top of screen */
tree234 *screen; /* lines on primary screen */
tree234 *alt_screen; /* lines on alternate screen */
int disptop; /* distance scrolled back (0 or -ve) */
int tempsblines; /* number of lines of .scrollback that
can be retrieved onto the terminal
("temporary scrollback") */
termline **disptext; /* buffer of text on real screen */
int dispcursx, dispcursy; /* location of cursor on real screen */
int curstype; /* type of cursor on real screen */
#define VBELL_TIMEOUT (TICKSPERSEC/10) /* visual bell lasts 1/10 sec */
struct beeptime *beephead, *beeptail;
int nbeeps;
int beep_overloaded;
long lastbeep;
#define TTYPE termchar
#define TSIZE (sizeof(TTYPE))
#ifdef OPTIMISE_SCROLL
struct scrollregion *scrollhead, *scrolltail;
#endif /* OPTIMISE_SCROLL */
int default_attr, curr_attr, save_attr;
termchar basic_erase_char, erase_char;
bufchain inbuf; /* terminal input buffer */
pos curs; /* cursor */
pos savecurs; /* saved cursor position */
int marg_t, marg_b; /* scroll margins */
int dec_om; /* DEC origin mode flag */
int wrap, wrapnext; /* wrap flags */
int insert; /* insert-mode flag */
int cset; /* 0 or 1: which char set */
int save_cset, save_csattr; /* saved with cursor position */
int save_utf, save_wnext; /* saved with cursor position */
int rvideo; /* global reverse video flag */
unsigned long rvbell_startpoint; /* for ESC[?5hESC[?5l vbell */
int cursor_on; /* cursor enabled flag */
int reset_132; /* Flag ESC c resets to 80 cols */
int use_bce; /* Use Background coloured erase */
int cblinker; /* When blinking is the cursor on ? */
int tblinker; /* When the blinking text is on */
int blink_is_real; /* Actually blink blinking text */
int term_echoing; /* Does terminal want local echo? */
int term_editing; /* Does terminal want local edit? */
int sco_acs, save_sco_acs; /* CSI 10,11,12m -> OEM charset */
int vt52_bold; /* Force bold on non-bold colours */
int utf; /* Are we in toggleable UTF-8 mode? */
int utf_state; /* Is there a pending UTF-8 character */
int utf_char; /* and what is it so far. */
int utf_size; /* The size of the UTF character. */
int printing, only_printing; /* Are we doing ANSI printing? */
int print_state; /* state of print-end-sequence scan */
bufchain printer_buf; /* buffered data for printer */
printer_job *print_job;
/* ESC 7 saved state for the alternate screen */
pos alt_savecurs;
int alt_save_attr;
int alt_save_cset, alt_save_csattr;
int alt_save_utf, alt_save_wnext;
int alt_save_sco_acs;
int rows, cols, savelines;
int has_focus;
int in_vbell;
long vbell_end;
int app_cursor_keys, app_keypad_keys, vt52_mode;
int repeat_off, cr_lf_return;
int seen_disp_event;
int big_cursor;
int xterm_mouse; /* send mouse messages to host */
int mouse_is_down; /* used while tracking mouse buttons */
int cset_attr[2];
/*
* Saved settings on the alternate screen.
*/
int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins;
int alt_cset, alt_sco_acs, alt_utf;
int alt_t, alt_b;
int alt_which;
int alt_sblines; /* # of lines on alternate screen that should be used for scrollback. */
#define ARGS_MAX 32 /* max # of esc sequence arguments */
#define ARG_DEFAULT 0 /* if an arg isn't specified */
#define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) )
int esc_args[ARGS_MAX];
int esc_nargs;
int esc_query;
#define ANSI(x,y) ((x)+((y)<<8))
#define ANSI_QUE(x) ANSI(x,TRUE)
#define OSC_STR_MAX 2048
int osc_strlen;
char osc_string[OSC_STR_MAX + 1];
int osc_w;
char id_string[1024];
unsigned char *tabs;
enum {
TOPLEVEL,
SEEN_ESC,
SEEN_CSI,
SEEN_OSC,
SEEN_OSC_W,
DO_CTRLS,
SEEN_OSC_P,
OSC_STRING, OSC_MAYBE_ST,
VT52_ESC,
VT52_Y1,
VT52_Y2,
VT52_FG,
VT52_BG
} termstate;
enum {
NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED
} selstate;
enum {
LEXICOGRAPHIC, RECTANGULAR
} seltype;
enum {
SM_CHAR, SM_WORD, SM_LINE
} selmode;
pos selstart, selend, selanchor;
short wordness[256];
/* Mask of attributes to pay attention to when painting. */
int attr_mask;
wchar_t *paste_buffer;
int paste_len, paste_pos, paste_hold;
long last_paste;
void (*resize_fn)(void *, int, int);
void *resize_ctx;
void *ldisc;
void *frontend;
void *logctx;
struct unicode_data *ucsdata;
/*
* We maintain a full _copy_ of a Config structure here, not
* merely a pointer to it. That way, when we're passed a new
* one for reconfiguration, we can check the differences and
* adjust the _current_ setting of (e.g.) auto wrap mode rather
* than only the default.
*/
Config cfg;
/*
* from_backend calls term_out, but it can also be called from
* the ldisc if the ldisc is called _within_ term_out. So we
* have to guard against re-entrancy - if from_backend is
* called recursively like this, it will simply add data to the
* end of the buffer term_out is in the process of working
* through.
*/
int in_term_out;
/*
* We schedule a window update shortly after receiving terminal
* data. This tracks whether one is currently pending.
*/
int window_update_pending;
long next_update;
/*
* Track pending blinks and tblinks.
*/
int tblink_pending, cblink_pending;
long next_tblink, next_cblink;
/*
* These are buffers used by the bidi and Arabic shaping code.
*/
termchar *ltemp;
int ltemp_size;
bidi_char *wcFrom, *wcTo;
int wcFromTo_size;
struct bidi_cache_entry *pre_bidi_cache, *post_bidi_cache;
int bidi_cache_size;
/*
* HACK: PuttyTray / Nutty
*/
int url_update;
};
#define in_utf(term) ((term)->utf || (term)->ucsdata->line_codepage==CP_UTF8)
#endif
Jump to Line
Something went wrong with that request. Please try again.