[u/mdw/putty] / terminal.h

/*
 * 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 */

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 in temporary
					  scrollback */

    unsigned long *cpos;	       /* cursor position (convenience) */

    unsigned long *disptext;	       /* buffer of text on real screen */
    unsigned long *dispcurs;	       /* location of cursor on real screen */
    unsigned long 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 TSIZE (sizeof(unsigned long))
#define fix_cpos do { \
    term->cpos = lineptr(term->curs.y) + term->curs.x; \
} while(0)

#ifdef OPTIMISE_SCROLL
    struct scrollregion *scrollhead, *scrolltail;
#endif /* OPTIMISE_SCROLL */

    unsigned long curr_attr, save_attr;
    unsigned long 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 blinker;		       /* 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;

    int rows, cols, savelines;
    int has_focus;
    int in_vbell;
    unsigned long vbell_startpoint;
    int app_cursor_keys, app_keypad_keys, vt52_mode;
    int repeat_off, cr_lf_return;
    int seen_disp_event;
    int big_cursor;

    long last_blink;		       /* used for real blinking control */
    long last_tblink;

    int xterm_mouse;		       /* send mouse messages to app */
    int mouse_is_down;		       /* used while tracking mouse buttons */

    unsigned long 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. */
    unsigned long 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;
};

#define in_utf(term) ((term)->utf || (term)->ucsdata->line_codepage==CP_UTF8)

#endif
Commit	Line	Data
2df34b43	1	/*
	2	* Internals of the Terminal structure, for those other modules
	3	* which need to look inside it. It would be nice if this could be
	4	* folded back into terminal.c in future, with an abstraction layer
	5	* to handle everything that other modules need to know about it;
	6	* but for the moment, this will do.
	7	*/
	8
	9	#ifndef PUTTY_TERMINAL_H
	10	#define PUTTY_TERMINAL_H
	11
	12	#include "tree234.h"
	13
	14	struct beeptime {
	15	struct beeptime *next;
	16	unsigned long ticks;
	17	};
	18
	19	typedef struct {
	20	int y, x;
	21	} pos;
	22
341eb978	23	#ifdef OPTIMISE_SCROLL
	24	struct scrollregion {
	25	struct scrollregion *next;
	26	int topline; /* Top line of scroll region. */
	27	int botline; /* Bottom line of scroll region. */
	28	int lines; /* Number of lines to scroll by - +ve is forwards. */
	29	};
	30	#endif /* OPTIMISE_SCROLL */
	31
2df34b43	32	struct terminal_tag {
	33
	34	int compatibility_level;
	35
	36	tree234 scrollback; / lines scrolled off top of screen */
	37	tree234 screen; / lines on primary screen */
	38	tree234 alt_screen; / lines on alternate screen */
	39	int disptop; /* distance scrolled back (0 or -ve) */
4683b9b6	40	int tempsblines; /* number of lines in temporary
4683b9b6	41	scrollback */
2df34b43	42
	43	unsigned long cpos; / cursor position (convenience) */
	44
	45	unsigned long disptext; / buffer of text on real screen */
	46	unsigned long dispcurs; / location of cursor on real screen */
	47	unsigned long curstype; /* type of cursor on real screen */
	48
	49	#define VBELL_TIMEOUT (TICKSPERSEC/10) /* visual bell lasts 1/10 sec */
	50
	51	struct beeptime beephead, beeptail;
	52	int nbeeps;
	53	int beep_overloaded;
	54	long lastbeep;
	55
	56	#define TSIZE (sizeof(unsigned long))
	57	#define fix_cpos do { \
	58	term->cpos = lineptr(term->curs.y) + term->curs.x; \
	59	} while(0)
	60
341eb978	61	#ifdef OPTIMISE_SCROLL
	62	struct scrollregion scrollhead, scrolltail;
	63	#endif /* OPTIMISE_SCROLL */
	64
2df34b43	65	unsigned long curr_attr, save_attr;
	66	unsigned long erase_char;
	67
	68	bufchain inbuf; /* terminal input buffer */
	69	pos curs; /* cursor */
	70	pos savecurs; /* saved cursor position */
	71	int marg_t, marg_b; /* scroll margins */
	72	int dec_om; /* DEC origin mode flag */
	73	int wrap, wrapnext; /* wrap flags */
	74	int insert; /* insert-mode flag */
	75	int cset; /* 0 or 1: which char set */
	76	int save_cset, save_csattr; /* saved with cursor position */
	77	int save_utf, save_wnext; /* saved with cursor position */
	78	int rvideo; /* global reverse video flag */
	79	unsigned long rvbell_startpoint; /* for ESC[?5hESC[?5l vbell */
	80	int cursor_on; /* cursor enabled flag */
	81	int reset_132; /* Flag ESC c resets to 80 cols */
	82	int use_bce; /* Use Background coloured erase */
	83	int blinker; /* When blinking is the cursor on ? */
	84	int tblinker; /* When the blinking text is on */
	85	int blink_is_real; /* Actually blink blinking text */
	86	int term_echoing; /* Does terminal want local echo? */
	87	int term_editing; /* Does terminal want local edit? */
	88	int sco_acs, save_sco_acs; /* CSI 10,11,12m -> OEM charset */
	89	int vt52_bold; /* Force bold on non-bold colours */
	90	int utf; /* Are we in toggleable UTF-8 mode? */
	91	int utf_state; /* Is there a pending UTF-8 character */
	92	int utf_char; /* and what is it so far. */
	93	int utf_size; /* The size of the UTF character. */
	94	int printing, only_printing; /* Are we doing ANSI printing? */
	95	int print_state; /* state of print-end-sequence scan */
	96	bufchain printer_buf; /* buffered data for printer */
	97	printer_job *print_job;
	98
	99	int rows, cols, savelines;
	100	int has_focus;
	101	int in_vbell;
	102	unsigned long vbell_startpoint;
	103	int app_cursor_keys, app_keypad_keys, vt52_mode;
	104	int repeat_off, cr_lf_return;
	105	int seen_disp_event;
	106	int big_cursor;
	107
	108	long last_blink; /* used for real blinking control */
	109	long last_tblink;
	110
	111	int xterm_mouse; /* send mouse messages to app */
b9d7bcad	112	int mouse_is_down; /* used while tracking mouse buttons */
2df34b43	113
	114	unsigned long cset_attr[2];
	115
	116	/*
	117	* Saved settings on the alternate screen.
	118	*/
	119	int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins;
	120	int alt_cset, alt_sco_acs, alt_utf;
	121	int alt_t, alt_b;
	122	int alt_which;
876e5d5e	123	int alt_sblines; /* # of lines on alternate screen that should be used for scrollback. */
2df34b43	124
	125	#define ARGS_MAX 32 /* max # of esc sequence arguments */
	126	#define ARG_DEFAULT 0 /* if an arg isn't specified */
	127	#define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) )
	128	int esc_args[ARGS_MAX];
	129	int esc_nargs;
	130	int esc_query;
	131	#define ANSI(x,y) ((x)+((y)<<8))
	132	#define ANSI_QUE(x) ANSI(x,TRUE)
	133
	134	#define OSC_STR_MAX 2048
	135	int osc_strlen;
	136	char osc_string[OSC_STR_MAX + 1];
	137	int osc_w;
	138
	139	char id_string[1024];
	140
	141	unsigned char *tabs;
	142
	143	enum {
	144	TOPLEVEL,
	145	SEEN_ESC,
	146	SEEN_CSI,
	147	SEEN_OSC,
	148	SEEN_OSC_W,
	149
	150	DO_CTRLS,
	151
	152	SEEN_OSC_P,
	153	OSC_STRING, OSC_MAYBE_ST,
	154	VT52_ESC,
	155	VT52_Y1,
	156	VT52_Y2,
	157	VT52_FG,
	158	VT52_BG
	159	} termstate;
	160
	161	enum {
	162	NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED
	163	} selstate;
	164	enum {
	165	LEXICOGRAPHIC, RECTANGULAR
	166	} seltype;
	167	enum {
	168	SM_CHAR, SM_WORD, SM_LINE
	169	} selmode;
	170	pos selstart, selend, selanchor;
	171
	172	short wordness[256];
	173
2647b103	174	/* Mask of attributes to pay attention to when painting. */
	175	unsigned long attr_mask;
	176
2df34b43	177	wchar_t *paste_buffer;
	178	int paste_len, paste_pos, paste_hold;
	179	long last_paste;
51470298	180
	181	void (resize_fn)(void , int, int);
	182	void *resize_ctx;
b9d7bcad	183
b9d7bcad	184	void *ldisc;
a8327734	185
	186	void *frontend;
	187
	188	void *logctx;
f6b14226	189
21d2b241	190	struct unicode_data *ucsdata;
21d2b241	191
64734920	192	/*
	193	* We maintain a full _copy_ of a Config structure here, not
	194	* merely a pointer to it. That way, when we're passed a new
	195	* one for reconfiguration, we can check the differences and
	196	* adjust the _current_ setting of (e.g.) auto wrap mode rather
	197	* than only the default.
	198	*/
	199	Config cfg;
2df34b43	200	};
2df34b43	201
21d2b241	202	#define in_utf(term) ((term)->utf \|\| (term)->ucsdata->line_codepage==CP_UTF8)
2df34b43	203
2df34b43	204	#endif