diff options
Diffstat (limited to 'tools/plink/terminal.h')
-rw-r--r-- | tools/plink/terminal.h | 655 |
1 files changed, 329 insertions, 326 deletions
diff --git a/tools/plink/terminal.h b/tools/plink/terminal.h index 924cf56b9..135ef45a6 100644 --- a/tools/plink/terminal.h +++ b/tools/plink/terminal.h @@ -1,326 +1,329 @@ -/*
- * 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 Conf 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.
- */
- Conf *conf;
-
- /*
- * 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;
-
- /*
- * We copy a bunch of stuff out of the Conf structure into local
- * fields in the Terminal structure, to avoid the repeated
- * tree234 lookups which would be involved in fetching them from
- * the former every time.
- */
- int ansi_colour;
- char *answerback;
- int answerbacklen;
- int arabicshaping;
- int beep;
- int bellovl;
- int bellovl_n;
- int bellovl_s;
- int bellovl_t;
- int bidi;
- int bksp_is_delete;
- int blink_cur;
- int blinktext;
- int cjk_ambig_wide;
- int conf_height;
- int conf_width;
- int crhaslf;
- int erase_to_scrollback;
- int funky_type;
- int lfhascr;
- int logflush;
- int logtype;
- int mouse_override;
- int nethack_keypad;
- int no_alt_screen;
- int no_applic_c;
- int no_applic_k;
- int no_dbackspace;
- int no_mouse_rep;
- int no_remote_charset;
- int no_remote_resize;
- int no_remote_wintitle;
- int rawcnp;
- int rect_select;
- int remote_qtitle_action;
- int rxvt_homeend;
- int scroll_on_disp;
- int scroll_on_key;
- int xterm_256_colour;
-};
-
-#define in_utf(term) ((term)->utf || (term)->ucsdata->line_codepage==CP_UTF8)
-
-#endif
+/* + * 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 xterm_extended_mouse; + int urxvt_extended_mouse; + int mouse_is_down; /* used while tracking mouse buttons */ + + int bracketed_paste; + + 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; + + 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 Conf 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. + */ + Conf *conf; + + /* + * 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; + + /* + * We copy a bunch of stuff out of the Conf structure into local + * fields in the Terminal structure, to avoid the repeated + * tree234 lookups which would be involved in fetching them from + * the former every time. + */ + int ansi_colour; + char *answerback; + int answerbacklen; + int arabicshaping; + int beep; + int bellovl; + int bellovl_n; + int bellovl_s; + int bellovl_t; + int bidi; + int bksp_is_delete; + int blink_cur; + int blinktext; + int cjk_ambig_wide; + int conf_height; + int conf_width; + int crhaslf; + int erase_to_scrollback; + int funky_type; + int lfhascr; + int logflush; + int logtype; + int mouse_override; + int nethack_keypad; + int no_alt_screen; + int no_applic_c; + int no_applic_k; + int no_dbackspace; + int no_mouse_rep; + int no_remote_charset; + int no_remote_resize; + int no_remote_wintitle; + int rawcnp; + int rect_select; + int remote_qtitle_action; + int rxvt_homeend; + int scroll_on_disp; + int scroll_on_key; + int xterm_256_colour; +}; + +#define in_utf(term) ((term)->utf || (term)->ucsdata->line_codepage==CP_UTF8) + +#endif |