diff options
Diffstat (limited to 'tools/plink/terminal.h')
| -rw-r--r-- | tools/plink/terminal.h | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/tools/plink/terminal.h b/tools/plink/terminal.h new file mode 100644 index 000000000..6d3b1c544 --- /dev/null +++ b/tools/plink/terminal.h @@ -0,0 +1,280 @@ +/*
+ * 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;
+};
+
+#define in_utf(term) ((term)->utf || (term)->ucsdata->line_codepage==CP_UTF8)
+
+#endif
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