X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/0795dca106c17da839d7353de5f8a852941d44bb..62ddb51e0424dd4bd1098b024f2427959aefc729:/terminal.c diff --git a/terminal.c b/terminal.c index 311df18c..92c3f032 100644 --- a/terminal.c +++ b/terminal.c @@ -1,3 +1,7 @@ +/* + * Terminal emulator. + */ + #include #include #include @@ -61,6 +65,8 @@ #define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 ) +char *EMPTY_WINDOW_TITLE = ""; + const char sco2ansicolour[] = { 0, 4, 2, 6, 1, 5, 3, 7 }; #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t)) @@ -94,10 +100,12 @@ static termline *lineptr(Terminal *, int, int, int); static void unlineptr(termline *); static void do_paint(Terminal *, Context, int); static void erase_lots(Terminal *, int, int, int); +static int find_last_nonempty_line(Terminal *, tree234 *); static void swap_screen(Terminal *, int, int, int); static void update_sbar(Terminal *); static void deselect(Terminal *); static void term_print_finish(Terminal *); +static void scroll(Terminal *, int, int, int, int); #ifdef OPTIMISE_SCROLL static void scroll_display(Terminal *, int, int, int); #endif /* OPTIMISE_SCROLL */ @@ -1170,12 +1178,15 @@ static void term_schedule_vbell(Terminal *term, int already_started, /* * Set up power-on settings for the terminal. + * If 'clear' is false, don't actually clear the primary screen, and + * position the cursor below the last non-blank line (scrolling if + * necessary). */ -static void power_on(Terminal *term) +static void power_on(Terminal *term, int clear) { - term->curs.x = term->curs.y = 0; term->alt_x = term->alt_y = 0; term->savecurs.x = term->savecurs.y = 0; + term->alt_savecurs.x = term->alt_savecurs.y = 0; term->alt_t = term->marg_t = 0; if (term->rows != -1) term->alt_b = term->marg_b = term->rows - 1; @@ -1188,18 +1199,22 @@ static void power_on(Terminal *term) } term->alt_om = term->dec_om = term->cfg.dec_om; term->alt_ins = term->insert = FALSE; - term->alt_wnext = term->wrapnext = term->save_wnext = FALSE; + term->alt_wnext = term->wrapnext = + term->save_wnext = term->alt_save_wnext = FALSE; term->alt_wrap = term->wrap = term->cfg.wrap_mode; - term->alt_cset = term->cset = term->save_cset = 0; - term->alt_utf = term->utf = term->save_utf = 0; + term->alt_cset = term->cset = term->save_cset = term->alt_save_cset = 0; + term->alt_utf = term->utf = term->save_utf = term->alt_save_utf = 0; term->utf_state = 0; - term->alt_sco_acs = term->sco_acs = term->save_sco_acs = 0; - term->cset_attr[0] = term->cset_attr[1] = term->save_csattr = CSET_ASCII; + term->alt_sco_acs = term->sco_acs = + term->save_sco_acs = term->alt_save_sco_acs = 0; + term->cset_attr[0] = term->cset_attr[1] = + term->save_csattr = term->alt_save_csattr = CSET_ASCII; term->rvideo = 0; term->in_vbell = FALSE; term->cursor_on = 1; term->big_cursor = 0; - term->default_attr = term->save_attr = term->curr_attr = ATTR_DEFAULT; + term->default_attr = term->save_attr = + term->alt_save_attr = term->curr_attr = ATTR_DEFAULT; term->term_editing = term->term_echoing = FALSE; term->app_cursor_keys = term->cfg.app_cursor; term->app_keypad_keys = term->cfg.app_keypad; @@ -1217,8 +1232,17 @@ static void power_on(Terminal *term) swap_screen(term, 1, FALSE, FALSE); erase_lots(term, FALSE, TRUE, TRUE); swap_screen(term, 0, FALSE, FALSE); - erase_lots(term, FALSE, TRUE, TRUE); + if (clear) + erase_lots(term, FALSE, TRUE, TRUE); + term->curs.y = find_last_nonempty_line(term, term->screen) + 1; + if (term->curs.y == term->rows) { + term->curs.y--; + scroll(term, 0, term->rows - 1, 1, TRUE); + } + } else { + term->curs.y = 0; } + term->curs.x = 0; term_schedule_tblink(term); term_schedule_cblink(term); } @@ -1283,9 +1307,9 @@ void term_seen_key_event(Terminal *term) /* * Same as power_on(), but an external function. */ -void term_pwron(Terminal *term) +void term_pwron(Terminal *term, int clear) { - power_on(term); + power_on(term, clear); if (term->ldisc) /* cause ldisc to notice changes */ ldisc_send(term->ldisc, NULL, 0, 0); term->disptop = 0; @@ -1384,7 +1408,7 @@ void term_reconfig(Terminal *term, Config *cfg) */ void term_clrsb(Terminal *term) { - termline *line; + unsigned char *line; term->disptop = 0; while ((line = delpos234(term->scrollback, 0)) != NULL) { sfree(line); /* this is compressed data, not a termline */ @@ -1442,7 +1466,7 @@ Terminal *term_init(Config *mycfg, struct unicode_data *ucsdata, term->tabs = NULL; deselect(term); term->rows = term->cols = -1; - power_on(term); + power_on(term, TRUE); term->beephead = term->beeptail = NULL; #ifdef OPTIMISE_SCROLL term->scrollhead = term->scrolltail = NULL; @@ -1730,6 +1754,7 @@ static int find_last_nonempty_line(Terminal * term, tree234 * screen) static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos) { int t; + pos tp; tree234 *ttr; if (!which) @@ -1777,6 +1802,35 @@ static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos) t = term->sco_acs; if (!reset) term->sco_acs = term->alt_sco_acs; term->alt_sco_acs = t; + + tp = term->savecurs; + if (!reset && !keep_cur_pos) + term->savecurs = term->alt_savecurs; + term->alt_savecurs = tp; + t = term->save_cset; + if (!reset && !keep_cur_pos) + term->save_cset = term->alt_save_cset; + term->alt_save_cset = t; + t = term->save_csattr; + if (!reset && !keep_cur_pos) + term->save_csattr = term->alt_save_csattr; + term->alt_save_csattr = t; + t = term->save_attr; + if (!reset && !keep_cur_pos) + term->save_attr = term->alt_save_attr; + term->alt_save_attr = t; + t = term->save_utf; + if (!reset && !keep_cur_pos) + term->save_utf = term->alt_save_utf; + term->alt_save_utf = t; + t = term->save_wnext; + if (!reset && !keep_cur_pos) + term->save_wnext = term->alt_save_wnext; + term->alt_save_wnext = t; + t = term->save_sco_acs; + if (!reset && !keep_cur_pos) + term->save_sco_acs = term->alt_save_sco_acs; + term->alt_save_sco_acs = t; } if (reset && term->screen) { @@ -3076,7 +3130,7 @@ static void term_out(Terminal *term) break; case 'c': /* RIS: restore power-on settings */ compatibility(VT100); - power_on(term); + power_on(term, TRUE); if (term->ldisc) /* cause ldisc to notice changes */ ldisc_send(term->ldisc, NULL, 0, 0); if (term->reset_132) { @@ -3294,10 +3348,17 @@ static void term_out(Terminal *term) break; case 'J': /* ED: erase screen or parts of it */ { - unsigned int i = def(term->esc_args[0], 0) + 1; - if (i > 3) - i = 0; - erase_lots(term, FALSE, !!(i & 2), !!(i & 1)); + unsigned int i = def(term->esc_args[0], 0); + if (i == 3) { + /* Erase Saved Lines (xterm) + * This follows Thomas Dickey's xterm. */ + term_clrsb(term); + } else { + i++; + if (i > 3) + i = 0; + erase_lots(term, FALSE, !!(i & 2), !!(i & 1)); + } } term->disptop = 0; seen_disp_event(term); @@ -3732,8 +3793,11 @@ static void term_out(Terminal *term) break; case 20: if (term->ldisc && - !term->cfg.no_remote_qtitle) { - p = get_window_title(term->frontend, TRUE); + term->cfg.remote_qtitle_action != TITLE_NONE) { + if(term->cfg.remote_qtitle_action == TITLE_REAL) + p = get_window_title(term->frontend, TRUE); + else + p = EMPTY_WINDOW_TITLE; len = strlen(p); ldisc_send(term->ldisc, "\033]L", 3, 0); ldisc_send(term->ldisc, p, len, 0); @@ -3742,8 +3806,11 @@ static void term_out(Terminal *term) break; case 21: if (term->ldisc && - !term->cfg.no_remote_qtitle) { - p = get_window_title(term->frontend,FALSE); + term->cfg.remote_qtitle_action != TITLE_NONE) { + if(term->cfg.remote_qtitle_action == TITLE_REAL) + p = get_window_title(term->frontend, FALSE); + else + p = EMPTY_WINDOW_TITLE; len = strlen(p); ldisc_send(term->ldisc, "\033]l", 3, 0); ldisc_send(term->ldisc, p, len, 0); @@ -4080,7 +4147,7 @@ static void term_out(Terminal *term) break; case SEEN_OSC_P: { - int max = (term->osc_strlen == 0 ? 21 : 16); + int max = (term->osc_strlen == 0 ? 21 : 15); int val; if ((int)c >= '0' && (int)c <= '9') val = c - '0'; @@ -4809,10 +4876,12 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) != newline[j].attr) { int k; - for (k = laststart; k < j; k++) - term->disptext[i]->chars[k].attr |= ATTR_INVALID; + if (!dirtyrect) { + for (k = laststart; k < j; k++) + term->disptext[i]->chars[k].attr |= ATTR_INVALID; - dirtyrect = TRUE; + dirtyrect = TRUE; + } } if (dirtyrect) @@ -5040,17 +5109,43 @@ void term_scroll(Terminal *term, int rel, int where) term_update(term); } +/* + * Helper routine for clipme(): growing buffer. + */ +typedef struct { + int buflen; /* amount of allocated space in textbuf/attrbuf */ + int bufpos; /* amount of actual data */ + wchar_t *textbuf; /* buffer for copied text */ + wchar_t *textptr; /* = textbuf + bufpos (current insertion point) */ + int *attrbuf; /* buffer for copied attributes */ + int *attrptr; /* = attrbuf + bufpos */ +} clip_workbuf; + +static void clip_addchar(clip_workbuf *b, wchar_t chr, int attr) +{ + if (b->bufpos >= b->buflen) { + b->buflen += 128; + b->textbuf = sresize(b->textbuf, b->buflen, wchar_t); + b->textptr = b->textbuf + b->bufpos; + b->attrbuf = sresize(b->attrbuf, b->buflen, int); + b->attrptr = b->attrbuf + b->bufpos; + } + *b->textptr++ = chr; + *b->attrptr++ = attr; + b->bufpos++; +} + static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel) { - wchar_t *workbuf; - wchar_t *wbptr; /* where next char goes within workbuf */ + clip_workbuf buf; int old_top_x; - int wblen = 0; /* workbuf len */ - int buflen; /* amount of memory allocated to workbuf */ + int attr; + + buf.buflen = 5120; + buf.bufpos = 0; + buf.textptr = buf.textbuf = snewn(buf.buflen, wchar_t); + buf.attrptr = buf.attrbuf = snewn(buf.buflen, int); - buflen = 5120; /* Default size */ - workbuf = snewn(buflen, wchar_t); - wbptr = workbuf; /* start filling here */ old_top_x = top.x; /* needed for rect==1 */ while (poslt(top, bottom)) { @@ -5073,7 +5168,8 @@ static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel) * newline at the end)... */ if (!(ldata->lattr & LATTR_WRAPPED)) { - while (IS_SPACE_CHR(ldata->chars[nlpos.x - 1].chr) && + while (nlpos.x && + IS_SPACE_CHR(ldata->chars[nlpos.x - 1].chr) && !ldata->chars[nlpos.x - 1].cc_next && poslt(top, nlpos)) decpos(nlpos); @@ -5113,6 +5209,7 @@ static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel) while (1) { int uc = ldata->chars[x].chr; + attr = ldata->chars[x].attr; switch (uc & CSET_MASK) { case CSET_LINEDRW: @@ -5164,16 +5261,8 @@ static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel) } #endif - for (p = cbuf; *p; p++) { - /* Enough overhead for trailing NL and nul */ - if (wblen >= buflen - 16) { - buflen += 100; - workbuf = sresize(workbuf, buflen, wchar_t); - wbptr = workbuf + wblen; - } - wblen++; - *wbptr++ = *p; - } + for (p = cbuf; *p; p++) + clip_addchar(&buf, *p, attr); if (ldata->chars[x].cc_next) x += ldata->chars[x].cc_next; @@ -5184,10 +5273,8 @@ static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel) } if (nl) { int i; - for (i = 0; i < sel_nl_sz; i++) { - wblen++; - *wbptr++ = sel_nl[i]; - } + for (i = 0; i < sel_nl_sz; i++) + clip_addchar(&buf, sel_nl[i], 0); } top.y++; top.x = rect ? old_top_x : 0; @@ -5195,12 +5282,12 @@ static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel) unlineptr(ldata); } #if SELECTION_NUL_TERMINATED - wblen++; - *wbptr++ = 0; + clip_addchar(&buf, 0, 0); #endif - write_clip(term->frontend, workbuf, wblen, desel); /* transfer to clipbd */ - if (buflen > 0) /* indicates we allocated this buffer */ - sfree(workbuf); + /* Finally, transfer all that to the clipboard. */ + write_clip(term->frontend, buf.textbuf, buf.attrbuf, buf.bufpos, desel); + sfree(buf.textbuf); + sfree(buf.attrbuf); } void term_copyall(Terminal *term) @@ -5541,7 +5628,16 @@ void term_mouse(Terminal *term, Mouse_Button braw, Mouse_Button bcooked, selpoint.x = x; unlineptr(ldata); - if (raw_mouse) { + /* + * If we're in the middle of a selection operation, we ignore raw + * mouse mode until it's done (we must have been not in raw mouse + * mode when it started). + * This makes use of Shift for selection reliable, and avoids the + * host seeing mouse releases for which they never saw corresponding + * presses. + */ + if (raw_mouse && + (term->selstate != ABOUT_TO) && (term->selstate != DRAGGING)) { int encstate = 0, r, c; char abuf[16]; @@ -6345,7 +6441,7 @@ int term_get_userpass_input(Terminal *term, prompts_t *p, */ { int i; - for (i = 0; i < p->n_prompts; i++) + for (i = 0; i < (int)p->n_prompts; i++) memset(p->prompts[i]->result, 0, p->prompts[i]->result_len); } }