X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/putty/blobdiff_plain/fabd1805a8f429ca83b4271aabd1206ac3537ebb..5fac915c83c037545177b56d10e07b43a3252393:/terminal.c diff --git a/terminal.c b/terminal.c index 005bee55..2a9470ba 100644 --- a/terminal.c +++ b/terminal.c @@ -110,6 +110,19 @@ static unsigned long *resizeline(unsigned long *line, int cols) } /* + * Get the number of lines in the scrollback. + */ +static int sblines(Terminal *term) +{ + int sblines = count234(term->scrollback); + if (term->cfg.erase_to_scrollback && + term->alt_which && term->alt_screen) { + sblines += term->alt_sblines; + } + return sblines; +} + +/* * Retrieve a line of the screen or of the scrollback, according to * whether the y coordinate is non-negative or negative * (respectively). @@ -124,8 +137,19 @@ static unsigned long *lineptr(Terminal *term, int y, int lineno) whichtree = term->screen; treeindex = y; } else { - whichtree = term->scrollback; - treeindex = y + count234(term->scrollback); + int altlines = 0; + if (term->cfg.erase_to_scrollback && + term->alt_which && term->alt_screen) { + altlines = term->alt_sblines; + } + if (y < -altlines) { + whichtree = term->scrollback; + treeindex = y + altlines + count234(term->scrollback); + } else { + whichtree = term->alt_screen; + treeindex = y + term->alt_sblines; + /* treeindex = y + count234(term->alt_screen); */ + } } line = index234(whichtree, treeindex); @@ -331,6 +355,8 @@ void term_clrsb(Terminal *term) while ((line = delpos234(term->scrollback, 0)) != NULL) { sfree(line); } + term->tempsblines = 0; + term->alt_sblines = 0; update_sbar(term); } @@ -374,6 +400,8 @@ Terminal *term_init(Config *mycfg, struct unicode_data *ucsdata, term->curstype = 0; term->screen = term->alt_screen = term->scrollback = NULL; + term->tempsblines = 0; + term->alt_sblines = 0; term->disptop = 0; term->disptext = term->dispcurs = NULL; term->tabs = NULL; @@ -381,6 +409,9 @@ Terminal *term_init(Config *mycfg, struct unicode_data *ucsdata, term->rows = term->cols = -1; power_on(term); term->beephead = term->beeptail = NULL; +#ifdef OPTIMISE_SCROLL + term->scrollhead = term->scrolltail = NULL; +#endif /* OPTIMISE_SCROLL */ term->nbeeps = 0; term->lastbeep = FALSE; term->beep_overloaded = FALSE; @@ -443,6 +474,7 @@ void term_size(Terminal *term, int newrows, int newcols, int newsavelines) if (term->rows == -1) { term->scrollback = newtree234(NULL); term->screen = newtree234(NULL); + term->tempsblines = 0; term->rows = 0; } @@ -452,15 +484,14 @@ void term_size(Terminal *term, int newrows, int newcols, int newsavelines) * will take care of resizing each individual line if * necessary. So: * - * - If the new screen and the old screen differ in length, we - * must shunt some lines in from the scrollback or out to - * the scrollback. - * - * - If doing that fails to provide us with enough material to - * fill the new screen (i.e. the number of rows needed in - * the new screen exceeds the total number in the previous - * screen+scrollback), we must invent some blank lines to - * cover the gap. + * - If the new screen is longer, we shunt lines in from temporary + * scrollback if possible, otherwise we add new blank lines at + * the bottom. + * + * - If the new screen is shorter, we remove any blank lines at + * the bottom if possible, otherwise shunt lines above the cursor + * to scrollback if possible, otherwise delete lines below the + * cursor. * * - Then, if the new scrollback length is less than the * amount of scrollback we actually have, we must throw some @@ -468,31 +499,58 @@ void term_size(Terminal *term, int newrows, int newcols, int newsavelines) */ sblen = count234(term->scrollback); /* Do this loop to expand the screen if newrows > rows */ - for (i = term->rows; i < newrows; i++) { - if (sblen > 0) { + assert(term->rows == count234(term->screen)); + while (term->rows < newrows) { + if (term->tempsblines > 0) { + /* Insert a line from the scrollback at the top of the screen. */ + assert(sblen >= term->tempsblines); line = delpos234(term->scrollback, --sblen); + term->tempsblines -= 1; + addpos234(term->screen, line, 0); + term->curs.y += 1; + term->savecurs.y += 1; } else { + /* Add a new blank line at the bottom of the screen. */ line = smalloc(TSIZE * (newcols + 2)); line[0] = newcols; - for (j = 0; j <= newcols; j++) + for (j = 0; j < newcols; j++) line[j + 1] = ERASE_CHAR; + line[newcols + 1] = LATTR_NORM; + addpos234(term->screen, line, count234(term->screen)); } - addpos234(term->screen, line, 0); + term->rows += 1; } /* Do this loop to shrink the screen if newrows < rows */ - for (i = newrows; i < term->rows; i++) { - line = delpos234(term->screen, 0); - addpos234(term->scrollback, line, sblen++); + while (term->rows > newrows) { + if (term->curs.y < term->rows - 1) { + /* delete bottom row, unless it contains the cursor */ + sfree(delpos234(term->screen, term->rows - 1)); + } else { + /* push top row to scrollback */ + line = delpos234(term->screen, 0); + addpos234(term->scrollback, line, sblen++); + term->tempsblines += 1; + term->curs.y -= 1; + term->savecurs.y -= 1; + } + term->rows -= 1; } + assert(term->rows == newrows); assert(count234(term->screen) == newrows); + + /* Delete any excess lines from the scrollback. */ while (sblen > newsavelines) { line = delpos234(term->scrollback, 0); sfree(line); sblen--; } + if (sblen < term->tempsblines) + term->tempsblines = sblen; assert(count234(term->scrollback) <= newsavelines); + assert(count234(term->scrollback) >= term->tempsblines); term->disptop = 0; + /* Make a new displayed text buffer. */ newdisp = smalloc(newrows * (newcols + 1) * TSIZE); for (i = 0; i < newrows * (newcols + 1); i++) newdisp[i] = ATTR_INVALID; @@ -500,12 +558,14 @@ void term_size(Terminal *term, int newrows, int newcols, int newsavelines) term->disptext = newdisp; term->dispcurs = NULL; + /* Make a new alternate screen. */ newalt = newtree234(NULL); for (i = 0; i < newrows; i++) { line = smalloc(TSIZE * (newcols + 2)); line[0] = newcols; - for (j = 0; j <= newcols; j++) + for (j = 0; j < newcols; j++) line[j + 1] = term->erase_char; + line[newcols + 1] = LATTR_NORM; addpos234(newalt, line, i); } if (term->alt_screen) { @@ -514,6 +574,7 @@ void term_size(Terminal *term, int newrows, int newcols, int newsavelines) freetree234(term->alt_screen); } term->alt_screen = newalt; + term->alt_sblines = 0; term->tabs = srealloc(term->tabs, newcols * sizeof(*term->tabs)); { @@ -522,8 +583,11 @@ void term_size(Terminal *term, int newrows, int newcols, int newsavelines) term->tabs[i] = (i % 8 == 0 ? TRUE : FALSE); } - if (term->rows > 0) - term->curs.y += newrows - term->rows; + /* Check that the cursor positions are still valid. */ + if (term->savecurs.y < 0) + term->savecurs.y = 0; + if (term->savecurs.y >= newrows) + term->savecurs.y = newrows - 1; if (term->curs.y < 0) term->curs.y = 0; if (term->curs.y >= newrows) @@ -560,6 +624,25 @@ void term_provide_resize_fn(Terminal *term, resize_fn(resize_ctx, term->cols, term->rows); } +/* Find the bottom line on the screen that has any content. + * If only the top line has content, returns 0. + * If no lines have content, return -1. + */ +static int find_last_nonempty_line(Terminal * term, tree234 * screen) +{ + int i; + for (i = count234(screen) - 1; i >= 0; i--) { + unsigned long *line = index234(screen, i); + int j; + int cols = line[0]; + for (j = 0; j < cols; j++) { + if (line[j + 1] != term->erase_char) break; + } + if (j != cols) break; + } + return i; +} + /* * Swap screens. If `reset' is TRUE and we have been asked to * switch to the alternate screen, we must bring most of its @@ -581,6 +664,7 @@ static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos) ttr = term->alt_screen; term->alt_screen = term->screen; term->screen = ttr; + term->alt_sblines = find_last_nonempty_line(term, term->alt_screen) + 1; t = term->curs.x; if (!reset && !keep_cur_pos) term->curs.x = term->alt_x; @@ -638,10 +722,7 @@ static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos) */ static void update_sbar(Terminal *term) { - int nscroll; - - nscroll = count234(term->scrollback); - + int nscroll = sblines(term); set_sbar(term->frontend, nscroll + term->rows, nscroll + term->disptop, term->rows); } @@ -718,6 +799,7 @@ static void scroll(Terminal *term, int topline, int botline, int lines, int sb) } else { line2 = smalloc(TSIZE * (term->cols + 2)); line2[0] = term->cols; + term->tempsblines += 1; } addpos234(term->scrollback, line, sblen); line = line2; @@ -742,7 +824,7 @@ static void scroll(Terminal *term, int topline, int botline, int lines, int sb) line = resizeline(line, term->cols); for (i = 0; i < term->cols; i++) line[i + 1] = term->erase_char; - line[term->cols + 1] = 0; + line[term->cols + 1] = LATTR_NORM; addpos234(term->screen, line, botline); /* @@ -793,6 +875,35 @@ static void scroll(Terminal *term, int topline, int botline, int lines, int sb) #ifdef OPTIMISE_SCROLL /* + * Add a scroll of a region on the screen into the pending scroll list. + * `lines' is +ve for scrolling forward, -ve for backward. + * + * If the scroll is on the same area as the last scroll in the list, + * merge them. + */ +static void save_scroll(Terminal *term, int topline, int botline, int lines) +{ + struct scrollregion *newscroll; + if (term->scrolltail && + term->scrolltail->topline == topline && + term->scrolltail->botline == botline) { + term->scrolltail->lines += lines; + } else { + newscroll = smalloc(sizeof(struct scrollregion)); + newscroll->topline = topline; + newscroll->botline = botline; + newscroll->lines = lines; + newscroll->next = NULL; + + if (!term->scrollhead) + term->scrollhead = newscroll; + else + term->scrolltail->next = newscroll; + term->scrolltail = newscroll; + } +} + +/* * Scroll the physical display, and our conception of it in disptext. */ static void scroll_display(Terminal *term, int topline, int botline, int lines) @@ -818,7 +929,7 @@ static void scroll_display(Terminal *term, int topline, int botline, int lines) for (i = 0; i < distance; i++) start[i] |= ATTR_INVALID; } - do_scroll(term->frontend, topline, botline, lines); + save_scroll(term, topline, botline, lines); } #endif /* OPTIMISE_SCROLL */ @@ -940,7 +1051,7 @@ static void erase_lots(Terminal *term, { pos start, end; int erase_lattr; - unsigned long *ldata; + int erasing_lines_from_top = 0; if (line_only) { start.y = term->curs.y; @@ -970,15 +1081,44 @@ static void erase_lots(Terminal *term, if (start.y == 0 && start.x == 0 && end.y == term->rows) term_invalidate(term); - ldata = lineptr(start.y); - while (poslt(start, end)) { - if (start.x == term->cols && !erase_lattr) - ldata[start.x] &= ~(LATTR_WRAPPED | LATTR_WRAPPED2); - else - ldata[start.x] = term->erase_char; - if (incpos(start) && start.y < term->rows) - ldata = lineptr(start.y); + /* Lines scrolled away shouldn't be brought back on if the terminal + * resizes. */ + if (start.y == 0 && start.x == 0 && end.x == 0 && erase_lattr) + erasing_lines_from_top = 1; + + if (term->cfg.erase_to_scrollback && erasing_lines_from_top) { + /* If it's a whole number of lines, starting at the top, and + * we're fully erasing them, erase by scrolling and keep the + * lines in the scrollback. */ + int scrolllines = end.y; + if (end.y == term->rows) { + /* Shrink until we find a non-empty row.*/ + scrolllines = find_last_nonempty_line(term, term->screen) + 1; + } + if (scrolllines > 0) + scroll(term, 0, scrolllines - 1, scrolllines, TRUE); + fix_cpos; + } else { + unsigned long *ldata = lineptr(start.y); + while (poslt(start, end)) { + if (start.x == term->cols) { + if (!erase_lattr) + ldata[start.x] &= ~(LATTR_WRAPPED | LATTR_WRAPPED2); + else + ldata[start.x] = LATTR_NORM; + } else { + ldata[start.x] = term->erase_char; + } + if (incpos(start) && start.y < term->rows) + ldata = lineptr(start.y); + } } + + /* After an erase of lines from the top of the screen, we shouldn't + * bring the lines back again if the terminal enlarges (since the user or + * application has explictly thrown them away). */ + if (erasing_lines_from_top && !(term->alt_which)) + term->tempsblines = 0; } /* @@ -2281,6 +2421,20 @@ void term_out(Terminal *term) term->curr_attr |= (term->esc_args[i] - 30)<curr_attr &= ~ATTR_FGMASK; + term->curr_attr |= + ((term->esc_args[i] - 90 + 16) + << ATTR_FGSHIFT); + break; case 39: /* default-foreground */ term->curr_attr &= ~ATTR_FGMASK; term->curr_attr |= ATTR_DEFFG; @@ -2298,6 +2452,20 @@ void term_out(Terminal *term) term->curr_attr |= (term->esc_args[i] - 40)<curr_attr &= ~ATTR_BGMASK; + term->curr_attr |= + ((term->esc_args[i] - 100 + 16) + << ATTR_BGSHIFT); + break; case 49: /* default-background */ term->curr_attr &= ~ATTR_BGMASK; term->curr_attr |= ATTR_DEFBG; @@ -3053,6 +3221,9 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) char ch[1024]; long cursor_background = ERASE_CHAR; unsigned long ticks; +#ifdef OPTIMISE_SCROLL + struct scrollregion *sr; +#endif /* OPTIMISE_SCROLL */ /* * Check the visual bell state. @@ -3115,6 +3286,18 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) } term->dispcurs = NULL; +#ifdef OPTIMISE_SCROLL + /* Do scrolls */ + sr = term->scrollhead; + while (sr) { + struct scrollregion *next = sr->next; + do_scroll(ctx, sr->topline, sr->botline, sr->lines); + sfree(sr); + sr = next; + } + term->scrollhead = term->scrolltail = NULL; +#endif /* OPTIMISE_SCROLL */ + /* The normal screen data */ for (i = 0; i < term->rows; i++) { unsigned long *ldata; @@ -3175,9 +3358,7 @@ static void do_paint(Terminal *term, Context ctx, int may_optimise) /* 'Real' blinking ? */ if (term->blink_is_real && (tattr & ATTR_BLINK)) { if (term->has_focus && term->tblinker) { - tchar = ' '; - tattr &= ~CSET_MASK; - tattr |= ATTR_ACP; + tchar = term->ucsdata->unitab_line[(unsigned char)' ']; } tattr &= ~ATTR_BLINK; } @@ -3349,7 +3530,7 @@ void term_paint(Terminal *term, Context ctx, */ void term_scroll(Terminal *term, int rel, int where) { - int sbtop = -count234(term->scrollback); + int sbtop = -sblines(term); #ifdef OPTIMISE_SCROLL int olddisptop = term->disptop; int shift; @@ -3526,7 +3707,7 @@ static void clipme(Terminal *term, pos top, pos bottom, int rect) void term_copyall(Terminal *term) { pos top; - top.y = -count234(term->scrollback); + top.y = -sblines(term); top.x = 0; clipme(term, top, term->curs, 0); } @@ -3653,7 +3834,7 @@ static pos sel_spread_half(Terminal *term, pos p, int dir) { unsigned long *ldata; short wvalue; - int topy = -count234(term->scrollback); + int topy = -sblines(term); ldata = lineptr(p.y); @@ -3802,8 +3983,8 @@ void term_do_paste(Terminal *term) get_clip(term->frontend, NULL, NULL); } -void term_mouse(Terminal *term, Mouse_Button b, Mouse_Action a, int x, int y, - int shift, int ctrl, int alt) +void term_mouse(Terminal *term, Mouse_Button braw, Mouse_Button bcooked, + Mouse_Action a, int x, int y, int shift, int ctrl, int alt) { pos selpoint; unsigned long *ldata; @@ -3844,7 +4025,7 @@ void term_mouse(Terminal *term, Mouse_Button b, Mouse_Action a, int x, int y, if (term->ldisc) { - switch (b) { + switch (braw) { case MBT_LEFT: encstate = 0x20; /* left button down */ break; @@ -3873,9 +4054,9 @@ void term_mouse(Terminal *term, Mouse_Button b, Mouse_Action a, int x, int y, term->mouse_is_down = 0; break; case MA_CLICK: - if (term->mouse_is_down == b) + if (term->mouse_is_down == braw) return; - term->mouse_is_down = b; + term->mouse_is_down = braw; break; default: break; /* placate gcc warning about enum use */ } @@ -3892,8 +4073,6 @@ void term_mouse(Terminal *term, Mouse_Button b, Mouse_Action a, int x, int y, return; } - b = translate_button(term->frontend, b); - /* * Set the selection type (rectangular or normal) at the start * of a selection attempt, from the state of Alt. @@ -3907,13 +4086,13 @@ void term_mouse(Terminal *term, Mouse_Button b, Mouse_Action a, int x, int y, term->seltype = default_seltype; } - if (b == MBT_SELECT && a == MA_CLICK) { + if (bcooked == MBT_SELECT && a == MA_CLICK) { deselect(term); term->selstate = ABOUT_TO; term->seltype = default_seltype; term->selanchor = selpoint; term->selmode = SM_CHAR; - } else if (b == MBT_SELECT && (a == MA_2CLK || a == MA_3CLK)) { + } else if (bcooked == MBT_SELECT && (a == MA_2CLK || a == MA_3CLK)) { deselect(term); term->selmode = (a == MA_2CLK ? SM_WORD : SM_LINE); term->selstate = DRAGGING; @@ -3921,11 +4100,12 @@ void term_mouse(Terminal *term, Mouse_Button b, Mouse_Action a, int x, int y, term->selend = term->selstart; incpos(term->selend); sel_spread(term); - } else if ((b == MBT_SELECT && a == MA_DRAG) || - (b == MBT_EXTEND && a != MA_RELEASE)) { + } else if ((bcooked == MBT_SELECT && a == MA_DRAG) || + (bcooked == MBT_EXTEND && a != MA_RELEASE)) { if (term->selstate == ABOUT_TO && poseq(term->selanchor, selpoint)) return; - if (b == MBT_EXTEND && a != MA_DRAG && term->selstate == SELECTED) { + if (bcooked == MBT_EXTEND && a != MA_DRAG && + term->selstate == SELECTED) { if (term->seltype == LEXICOGRAPHIC) { /* * For normal selection, we extend by moving @@ -3986,7 +4166,8 @@ void term_mouse(Terminal *term, Mouse_Button b, Mouse_Action a, int x, int y, term->selend.y = max(term->selanchor.y, selpoint.y); } sel_spread(term); - } else if ((b == MBT_SELECT || b == MBT_EXTEND) && a == MA_RELEASE) { + } else if ((bcooked == MBT_SELECT || bcooked == MBT_EXTEND) && + a == MA_RELEASE) { if (term->selstate == DRAGGING) { /* * We've completed a selection. We now transfer the @@ -3997,7 +4178,7 @@ void term_mouse(Terminal *term, Mouse_Button b, Mouse_Action a, int x, int y, term->selstate = SELECTED; } else term->selstate = NO_SELECTION; - } else if (b == MBT_PASTE + } else if (bcooked == MBT_PASTE && (a == MA_CLICK #if MULTICLICK_ONLY_EVENT || a == MA_2CLK || a == MA_3CLK @@ -4009,6 +4190,446 @@ void term_mouse(Terminal *term, Mouse_Button b, Mouse_Action a, int x, int y, term_update(term); } +void term_key(Terminal *term, Key_Sym keysym, wchar_t *text, size_t tlen, + unsigned int modifiers, unsigned int flags) +{ + char output[10]; + char *p = output; + int prependesc = FALSE; +#if 0 + int i; + + fprintf(stderr, "keysym = %d, %d chars:", keysym, tlen); + for (i = 0; i < tlen; i++) + fprintf(stderr, " %04x", (unsigned)text[i]); + fprintf(stderr, "\n"); +#endif + + /* XXX Num Lock */ + if ((flags & PKF_REPEAT) && term->repeat_off) + return; + + /* Currently, Meta always just prefixes everything with ESC. */ + if (modifiers & PKM_META) + prependesc = TRUE; + modifiers &= ~PKM_META; + + /* + * Alt is only used for Alt+keypad, which isn't supported yet, so + * ignore it. + */ + modifiers &= ~PKM_ALT; + + /* Standard local function keys */ + switch (modifiers & (PKM_SHIFT | PKM_CONTROL)) { + case PKM_SHIFT: + if (keysym == PK_PAGEUP) + /* scroll up one page */; + if (keysym == PK_PAGEDOWN) + /* scroll down on page */; + if (keysym == PK_INSERT) + term_do_paste(term); + break; + case PKM_CONTROL: + if (keysym == PK_PAGEUP) + /* scroll up one line */; + if (keysym == PK_PAGEDOWN) + /* scroll down one line */; + /* Control-Numlock for app-keypad mode switch */ + if (keysym == PK_PF1) + term->app_keypad_keys ^= 1; + break; + } + + if (modifiers & PKM_ALT) { + /* Alt+F4 (close) */ + /* Alt+Return (full screen) */ + /* Alt+Space (system menu) */ + } + + if (keysym == PK_NULL && (modifiers & PKM_CONTROL) && tlen == 1 && + text[0] >= 0x20 && text[0] <= 0x7e) { + /* ASCII chars + Control */ + if ((text[0] >= 0x40 && text[0] <= 0x5f) || + (text[0] >= 0x61 && text[0] <= 0x7a)) + text[0] &= 0x1f; + else { + /* + * Control-2 should return ^@ (0x00), Control-6 should return + * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since + * the DOS keyboard handling did it, and we have nothing better + * to do with the key combo in question, we'll also map + * Control-Backquote to ^\ (0x1C). + */ + switch (text[0]) { + case ' ': text[0] = 0x00; break; + case '-': text[0] = 0x1f; break; + case '/': text[0] = 0x1f; break; + case '2': text[0] = 0x00; break; + case '3': text[0] = 0x1b; break; + case '4': text[0] = 0x1c; break; + case '5': text[0] = 0x1d; break; + case '6': text[0] = 0x1e; break; + case '7': text[0] = 0x1f; break; + case '8': text[0] = 0x7f; break; + case '`': text[0] = 0x1c; break; + } + } + } + + /* Nethack keypad */ + if (term->cfg.nethack_keypad) { + char c = 0; + switch (keysym) { + case PK_KP1: c = 'b'; break; + case PK_KP2: c = 'j'; break; + case PK_KP3: c = 'n'; break; + case PK_KP4: c = 'h'; break; + case PK_KP5: c = '.'; break; + case PK_KP6: c = 'l'; break; + case PK_KP7: c = 'y'; break; + case PK_KP8: c = 'k'; break; + case PK_KP9: c = 'u'; break; + default: break; /* else gcc warns `enum value not used' */ + } + if (c != 0) { + if (c != '.') { + if (modifiers & PKM_CONTROL) + c &= 0x1f; + else if (modifiers & PKM_SHIFT) + c = toupper(c); + } + *p++ = c; + goto done; + } + } + + /* Numeric Keypad */ + if (PK_ISKEYPAD(keysym)) { + int xkey = 0; + + /* + * In VT400 mode, PFn always emits an escape sequence. In + * Linux and tilde modes, this only happens in app keypad mode. + */ + if (term->cfg.funky_type == FUNKY_VT400 || + ((term->cfg.funky_type == FUNKY_LINUX || + term->cfg.funky_type == FUNKY_TILDE) && + term->app_keypad_keys && !term->cfg.no_applic_k)) { + switch (keysym) { + case PK_PF1: xkey = 'P'; break; + case PK_PF2: xkey = 'Q'; break; + case PK_PF3: xkey = 'R'; break; + case PK_PF4: xkey = 'S'; break; + default: break; /* else gcc warns `enum value not used' */ + } + } + if (term->app_keypad_keys && !term->cfg.no_applic_k) { + switch (keysym) { + case PK_KP0: xkey = 'p'; break; + case PK_KP1: xkey = 'q'; break; + case PK_KP2: xkey = 'r'; break; + case PK_KP3: xkey = 's'; break; + case PK_KP4: xkey = 't'; break; + case PK_KP5: xkey = 'u'; break; + case PK_KP6: xkey = 'v'; break; + case PK_KP7: xkey = 'w'; break; + case PK_KP8: xkey = 'x'; break; + case PK_KP9: xkey = 'y'; break; + case PK_KPDECIMAL: xkey = 'n'; break; + case PK_KPENTER: xkey = 'M'; break; + default: break; /* else gcc warns `enum value not used' */ + } + if (term->cfg.funky_type == FUNKY_XTERM && tlen > 0) { + /* + * xterm can't see the layout of the keypad, so it has + * to rely on the X keysyms returned by the keys. + * Hence, we look at the strings here, not the PuTTY + * keysyms (which describe the layout). + */ + switch (text[0]) { + case '+': + if (modifiers & PKM_SHIFT) + xkey = 'l'; + else + xkey = 'k'; + break; + case '/': xkey = 'o'; break; + case '*': xkey = 'j'; break; + case '-': xkey = 'm'; break; + } + } else { + /* + * In all other modes, we try to retain the layout of + * the DEC keypad in application mode. + */ + switch (keysym) { + case PK_KPBIGPLUS: + /* This key covers the '-' and ',' keys on a VT220 */ + if (modifiers & PKM_SHIFT) + xkey = 'm'; /* VT220 '-' */ + else + xkey = 'l'; /* VT220 ',' */ + break; + case PK_KPMINUS: xkey = 'm'; break; + case PK_KPCOMMA: xkey = 'l'; break; + default: break; /* else gcc warns `enum value not used' */ + } + } + } + if (xkey) { + if (term->vt52_mode) { + if (xkey >= 'P' && xkey <= 'S') + p += sprintf((char *) p, "\x1B%c", xkey); + else + p += sprintf((char *) p, "\x1B?%c", xkey); + } else + p += sprintf((char *) p, "\x1BO%c", xkey); + goto done; + } + /* Not in application mode -- treat the number pad as arrow keys? */ + if ((flags & PKF_NUMLOCK) == 0) { + switch (keysym) { + case PK_KP0: keysym = PK_INSERT; break; + case PK_KP1: keysym = PK_END; break; + case PK_KP2: keysym = PK_DOWN; break; + case PK_KP3: keysym = PK_PAGEDOWN; break; + case PK_KP4: keysym = PK_LEFT; break; + case PK_KP5: keysym = PK_REST; break; + case PK_KP6: keysym = PK_RIGHT; break; + case PK_KP7: keysym = PK_HOME; break; + case PK_KP8: keysym = PK_UP; break; + case PK_KP9: keysym = PK_PAGEUP; break; + default: break; /* else gcc warns `enum value not used' */ + } + } + } + + /* Miscellaneous keys */ + switch (keysym) { + case PK_ESCAPE: + *p++ = 0x1b; + goto done; + case PK_BACKSPACE: + if (modifiers == 0) + *p++ = (term->cfg.bksp_is_delete ? 0x7F : 0x08); + else if (modifiers == PKM_SHIFT) + /* We do the opposite of what is configured */ + *p++ = (term->cfg.bksp_is_delete ? 0x08 : 0x7F); + else break; + goto done; + case PK_TAB: + if (modifiers == 0) + *p++ = 0x09; + else if (modifiers == PKM_SHIFT) + *p++ = 0x1B, *p++ = '[', *p++ = 'Z'; + else break; + goto done; + /* XXX window.c has ctrl+shift+space sending 0xa0 */ + case PK_PAUSE: + if (modifiers == PKM_CONTROL) + *p++ = 26; + else break; + goto done; + case PK_RETURN: + case PK_KPENTER: /* Odd keypad modes handled above */ + if (modifiers == 0) { + *p++ = 0x0d; + if (term->cr_lf_return) + *p++ = 0x0a; + goto done; + } + default: break; /* else gcc warns `enum value not used' */ + } + + /* SCO function keys and editing keys */ + if (term->cfg.funky_type == FUNKY_SCO) { + if (PK_ISFKEY(keysym) && keysym <= PK_F12) { + static char const codes[] = + "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{"; + int index = keysym - PK_F1; + + if (modifiers & PKM_SHIFT) index += 12; + if (modifiers & PKM_CONTROL) index += 24; + p += sprintf((char *) p, "\x1B[%c", codes[index]); + goto done; + } + if (PK_ISEDITING(keysym)) { + int xkey = 0; + + switch (keysym) { + case PK_DELETE: *p++ = 0x7f; goto done; + case PK_HOME: xkey = 'H'; break; + case PK_INSERT: xkey = 'L'; break; + case PK_END: xkey = 'F'; break; + case PK_PAGEUP: xkey = 'I'; break; + case PK_PAGEDOWN: xkey = 'G'; break; + default: break; /* else gcc warns `enum value not used' */ + } + p += sprintf((char *) p, "\x1B[%c", xkey); + } + } + + if (PK_ISEDITING(keysym) && (modifiers & PKM_SHIFT) == 0) { + int code; + + if (term->cfg.funky_type == FUNKY_XTERM) { + /* Xterm shuffles these keys, apparently. */ + switch (keysym) { + case PK_HOME: keysym = PK_INSERT; break; + case PK_INSERT: keysym = PK_HOME; break; + case PK_DELETE: keysym = PK_END; break; + case PK_END: keysym = PK_PAGEUP; break; + case PK_PAGEUP: keysym = PK_DELETE; break; + case PK_PAGEDOWN: keysym = PK_PAGEDOWN; break; + default: break; /* else gcc warns `enum value not used' */ + } + } + + /* RXVT Home/End */ + if (term->cfg.rxvt_homeend && + (keysym == PK_HOME || keysym == PK_END)) { + p += sprintf((char *) p, keysym == PK_HOME ? "\x1B[H" : "\x1BOw"); + goto done; + } + + if (term->vt52_mode) { + int xkey; + + /* + * A real VT52 doesn't have these, and a VT220 doesn't + * send anything for them in VT52 mode. + */ + switch (keysym) { + case PK_HOME: xkey = 'H'; break; + case PK_INSERT: xkey = 'L'; break; + case PK_DELETE: xkey = 'M'; break; + case PK_END: xkey = 'E'; break; + case PK_PAGEUP: xkey = 'I'; break; + case PK_PAGEDOWN: xkey = 'G'; break; + default: break; /* else gcc warns `enum value not used' */ + } + p += sprintf((char *) p, "\x1B%c", xkey); + goto done; + } + + switch (keysym) { + case PK_HOME: code = 1; break; + case PK_INSERT: code = 2; break; + case PK_DELETE: code = 3; break; + case PK_END: code = 4; break; + case PK_PAGEUP: code = 5; break; + case PK_PAGEDOWN: code = 6; break; + default: break; /* else gcc warns `enum value not used' */ + } + p += sprintf((char *) p, "\x1B[%d~", code); + goto done; + } + + if (PK_ISFKEY(keysym)) { + /* Map Shift+F1-F10 to F11-F20 */ + if (keysym >= PK_F1 && keysym <= PK_F10 && (modifiers & PKM_SHIFT)) + keysym += 10; + if ((term->vt52_mode || term->cfg.funky_type == FUNKY_VT100P) && + keysym <= PK_F14) { + /* XXX This overrides the XTERM/VT52 mode below */ + int offt = 0; + if (keysym >= PK_F6) offt++; + if (keysym >= PK_F12) offt++; + p += sprintf((char *) p, term->vt52_mode ? "\x1B%c" : "\x1BO%c", + 'P' + keysym - PK_F1 - offt); + goto done; + } + if (term->cfg.funky_type == FUNKY_LINUX && keysym <= PK_F5) { + p += sprintf((char *) p, "\x1B[[%c", 'A' + keysym - PK_F1); + goto done; + } + if (term->cfg.funky_type == FUNKY_XTERM && keysym <= PK_F4) { + if (term->vt52_mode) + p += sprintf((char *) p, "\x1B%c", 'P' + keysym - PK_F1); + else + p += sprintf((char *) p, "\x1BO%c", 'P' + keysym - PK_F1); + goto done; + } + p += sprintf((char *) p, "\x1B[%d~", 11 + keysym - PK_F1); + goto done; + } + + if (PK_ISCURSOR(keysym)) { + int xkey; + + switch (keysym) { + case PK_UP: xkey = 'A'; break; + case PK_DOWN: xkey = 'B'; break; + case PK_RIGHT: xkey = 'C'; break; + case PK_LEFT: xkey = 'D'; break; + case PK_REST: xkey = 'G'; break; /* centre key on number pad */ + default: break; /* else gcc warns `enum value not used' */ + } + if (term->vt52_mode) + p += sprintf((char *) p, "\x1B%c", xkey); + else { + int app_flg = (term->app_cursor_keys && !term->cfg.no_applic_c); + + /* Useful mapping of Ctrl-arrows */ + if (modifiers == PKM_CONTROL) + app_flg = !app_flg; + + if (app_flg) + p += sprintf((char *) p, "\x1BO%c", xkey); + else + p += sprintf((char *) p, "\x1B[%c", xkey); + } + goto done; + } + + done: + if (p > output || tlen > 0) { + /* + * Interrupt an ongoing paste. I'm not sure + * this is sensible, but for the moment it's + * preferable to having to faff about buffering + * things. + */ + term_nopaste(term); + + /* + * We need not bother about stdin backlogs + * here, because in GUI PuTTY we can't do + * anything about it anyway; there's no means + * of asking Windows to hold off on KEYDOWN + * messages. We _have_ to buffer everything + * we're sent. + */ + term_seen_key_event(term); + + if (prependesc) { +#if 0 + fprintf(stderr, "sending ESC\n"); +#endif + ldisc_send(term->ldisc, "\x1b", 1, 1); + } + + if (p > output) { +#if 0 + fprintf(stderr, "sending %d bytes:", p - output); + for (i = 0; i < p - output; i++) + fprintf(stderr, " %02x", output[i]); + fprintf(stderr, "\n"); +#endif + ldisc_send(term->ldisc, output, p - output, 1); + } else if (tlen > 0) { +#if 0 + fprintf(stderr, "sending %d unichars:", tlen); + for (i = 0; i < tlen; i++) + fprintf(stderr, " %04x", (unsigned) text[i]); + fprintf(stderr, "\n"); +#endif + luni_send(term->ldisc, text, tlen, 1); + } + } +} + void term_nopaste(Terminal *term) { if (term->paste_len == 0) @@ -4083,7 +4704,7 @@ int term_ldisc(Terminal *term, int option) /* * from_backend(), to get data from the backend for the terminal. */ -int from_backend(void *vterm, int is_stderr, char *data, int len) +int from_backend(void *vterm, int is_stderr, const char *data, int len) { Terminal *term = (Terminal *)vterm;