checking in all the old panacean stuff
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280
puttysrc/TERMINAL.H
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280
puttysrc/TERMINAL.H
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/*
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* Internals of the Terminal structure, for those other modules
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* which need to look inside it. It would be nice if this could be
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* folded back into terminal.c in future, with an abstraction layer
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* to handle everything that other modules need to know about it;
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* but for the moment, this will do.
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*/
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#ifndef PUTTY_TERMINAL_H
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#define PUTTY_TERMINAL_H
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#include "tree234.h"
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struct beeptime {
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struct beeptime *next;
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unsigned long ticks;
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};
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typedef struct {
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int y, x;
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} pos;
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#ifdef OPTIMISE_SCROLL
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struct scrollregion {
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struct scrollregion *next;
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int topline; /* Top line of scroll region. */
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int botline; /* Bottom line of scroll region. */
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int lines; /* Number of lines to scroll by - +ve is forwards. */
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};
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#endif /* OPTIMISE_SCROLL */
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typedef struct termchar termchar;
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typedef struct termline termline;
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struct termchar {
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/*
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* Any code in terminal.c which definitely needs to be changed
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* when extra fields are added here is labelled with a comment
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* saying FULL-TERMCHAR.
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*/
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unsigned long chr;
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unsigned long attr;
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/*
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* The cc_next field is used to link multiple termchars
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* together into a list, so as to fit more than one character
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* into a character cell (Unicode combining characters).
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*
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* cc_next is a relative offset into the current array of
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* termchars. I.e. to advance to the next character in a list,
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* one does `tc += tc->next'.
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*
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* Zero means end of list.
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*/
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int cc_next;
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};
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struct termline {
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unsigned short lattr;
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int cols; /* number of real columns on the line */
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int size; /* number of allocated termchars
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* (cc-lists may make this > cols) */
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int temporary; /* TRUE if decompressed from scrollback */
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int cc_free; /* offset to first cc in free list */
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struct termchar *chars;
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};
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struct bidi_cache_entry {
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int width;
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struct termchar *chars;
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int *forward, *backward; /* the permutations of line positions */
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};
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struct terminal_tag {
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int compatibility_level;
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tree234 *scrollback; /* lines scrolled off top of screen */
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tree234 *screen; /* lines on primary screen */
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tree234 *alt_screen; /* lines on alternate screen */
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int disptop; /* distance scrolled back (0 or -ve) */
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int tempsblines; /* number of lines of .scrollback that
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can be retrieved onto the terminal
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("temporary scrollback") */
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termline **disptext; /* buffer of text on real screen */
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int dispcursx, dispcursy; /* location of cursor on real screen */
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int curstype; /* type of cursor on real screen */
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#define VBELL_TIMEOUT (TICKSPERSEC/10) /* visual bell lasts 1/10 sec */
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struct beeptime *beephead, *beeptail;
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int nbeeps;
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int beep_overloaded;
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long lastbeep;
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#define TTYPE termchar
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#define TSIZE (sizeof(TTYPE))
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#ifdef OPTIMISE_SCROLL
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struct scrollregion *scrollhead, *scrolltail;
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#endif /* OPTIMISE_SCROLL */
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int default_attr, curr_attr, save_attr;
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termchar basic_erase_char, erase_char;
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bufchain inbuf; /* terminal input buffer */
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pos curs; /* cursor */
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pos savecurs; /* saved cursor position */
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int marg_t, marg_b; /* scroll margins */
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int dec_om; /* DEC origin mode flag */
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int wrap, wrapnext; /* wrap flags */
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int insert; /* insert-mode flag */
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int cset; /* 0 or 1: which char set */
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int save_cset, save_csattr; /* saved with cursor position */
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int save_utf, save_wnext; /* saved with cursor position */
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int rvideo; /* global reverse video flag */
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unsigned long rvbell_startpoint; /* for ESC[?5hESC[?5l vbell */
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int cursor_on; /* cursor enabled flag */
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int reset_132; /* Flag ESC c resets to 80 cols */
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int use_bce; /* Use Background coloured erase */
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int cblinker; /* When blinking is the cursor on ? */
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int tblinker; /* When the blinking text is on */
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int blink_is_real; /* Actually blink blinking text */
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int term_echoing; /* Does terminal want local echo? */
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int term_editing; /* Does terminal want local edit? */
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int sco_acs, save_sco_acs; /* CSI 10,11,12m -> OEM charset */
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int vt52_bold; /* Force bold on non-bold colours */
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int utf; /* Are we in toggleable UTF-8 mode? */
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int utf_state; /* Is there a pending UTF-8 character */
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int utf_char; /* and what is it so far. */
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int utf_size; /* The size of the UTF character. */
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int printing, only_printing; /* Are we doing ANSI printing? */
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int print_state; /* state of print-end-sequence scan */
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bufchain printer_buf; /* buffered data for printer */
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printer_job *print_job;
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/* ESC 7 saved state for the alternate screen */
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pos alt_savecurs;
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int alt_save_attr;
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int alt_save_cset, alt_save_csattr;
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int alt_save_utf, alt_save_wnext;
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int alt_save_sco_acs;
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int rows, cols, savelines;
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int has_focus;
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int in_vbell;
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long vbell_end;
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int app_cursor_keys, app_keypad_keys, vt52_mode;
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int repeat_off, cr_lf_return;
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int seen_disp_event;
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int big_cursor;
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int xterm_mouse; /* send mouse messages to app */
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int mouse_is_down; /* used while tracking mouse buttons */
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int cset_attr[2];
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/*
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* Saved settings on the alternate screen.
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*/
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int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins;
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int alt_cset, alt_sco_acs, alt_utf;
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int alt_t, alt_b;
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int alt_which;
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int alt_sblines; /* # of lines on alternate screen that should be used for scrollback. */
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#define ARGS_MAX 32 /* max # of esc sequence arguments */
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#define ARG_DEFAULT 0 /* if an arg isn't specified */
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#define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) )
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int esc_args[ARGS_MAX];
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int esc_nargs;
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int esc_query;
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#define ANSI(x,y) ((x)+((y)<<8))
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#define ANSI_QUE(x) ANSI(x,TRUE)
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#define OSC_STR_MAX 2048
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int osc_strlen;
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char osc_string[OSC_STR_MAX + 1];
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int osc_w;
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char id_string[1024];
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unsigned char *tabs;
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enum {
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TOPLEVEL,
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SEEN_ESC,
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SEEN_CSI,
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SEEN_OSC,
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SEEN_OSC_W,
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DO_CTRLS,
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SEEN_OSC_P,
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OSC_STRING, OSC_MAYBE_ST,
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VT52_ESC,
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VT52_Y1,
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VT52_Y2,
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VT52_FG,
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VT52_BG
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} termstate;
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enum {
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NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED
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} selstate;
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enum {
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LEXICOGRAPHIC, RECTANGULAR
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} seltype;
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enum {
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SM_CHAR, SM_WORD, SM_LINE
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} selmode;
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pos selstart, selend, selanchor;
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short wordness[256];
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/* Mask of attributes to pay attention to when painting. */
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int attr_mask;
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wchar_t *paste_buffer;
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int paste_len, paste_pos, paste_hold;
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long last_paste;
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void (*resize_fn)(void *, int, int);
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void *resize_ctx;
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void *ldisc;
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void *frontend;
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void *logctx;
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struct unicode_data *ucsdata;
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/*
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* We maintain a full _copy_ of a Config structure here, not
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* merely a pointer to it. That way, when we're passed a new
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* one for reconfiguration, we can check the differences and
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* adjust the _current_ setting of (e.g.) auto wrap mode rather
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* than only the default.
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*/
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Config cfg;
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/*
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* from_backend calls term_out, but it can also be called from
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* the ldisc if the ldisc is called _within_ term_out. So we
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* have to guard against re-entrancy - if from_backend is
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* called recursively like this, it will simply add data to the
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* end of the buffer term_out is in the process of working
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* through.
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*/
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int in_term_out;
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/*
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* We schedule a window update shortly after receiving terminal
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* data. This tracks whether one is currently pending.
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*/
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int window_update_pending;
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long next_update;
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/*
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* Track pending blinks and tblinks.
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*/
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int tblink_pending, cblink_pending;
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long next_tblink, next_cblink;
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/*
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* These are buffers used by the bidi and Arabic shaping code.
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*/
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termchar *ltemp;
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int ltemp_size;
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bidi_char *wcFrom, *wcTo;
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int wcFromTo_size;
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struct bidi_cache_entry *pre_bidi_cache, *post_bidi_cache;
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int bidi_cache_size;
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};
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#define in_utf(term) ((term)->utf || (term)->ucsdata->line_codepage==CP_UTF8)
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#endif
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