2 * Copyright © 2008 Kristian Høgsberg
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that copyright
7 * notice and this permission notice appear in supporting documentation, and
8 * that the name of the copyright holders not be used in advertising or
9 * publicity pertaining to distribution of the software without specific,
10 * written prior permission. The copyright holders make no representations
11 * about the suitability of this software for any purpose. It is provided "as
12 * is" without express or implied warranty.
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
36 #include <X11/keysym.h>
38 #include "wayland-util.h"
39 #include "wayland-client.h"
40 #include "wayland-glib.h"
44 static int option_fullscreen;
46 #define MOD_SHIFT 0x01
50 #define ATTRMASK_BOLD 0x01
51 #define ATTRMASK_UNDERLINE 0x02
52 #define ATTRMASK_BLINK 0x04
53 #define ATTRMASK_INVERSE 0x08
54 #define ATTRMASK_CONCEALED 0x10
57 #define MAX_RESPONSE 11
61 #define MODE_SHOW_CURSOR 0x00000001
62 #define MODE_INVERSE 0x00000002
63 #define MODE_AUTOWRAP 0x00000004
64 #define MODE_AUTOREPEAT 0x00000008
65 #define MODE_LF_NEWLINE 0x00000010
66 #define MODE_IRM 0x00000020
67 #define MODE_DELETE_SENDS_DEL 0x00000040
68 #define MODE_ALT_SENDS_ESC 0x00000080
71 unsigned char byte[4];
84 struct utf8_state_machine {
85 enum utf8_state state;
91 init_state_machine(struct utf8_state_machine *machine)
93 machine->state = utf8state_start;
98 static enum utf8_state
99 utf8_next_char(struct utf8_state_machine *machine, char c)
101 switch(machine->state) {
102 case utf8state_start:
103 case utf8state_accept:
104 case utf8state_reject:
107 if(c == 0xC0 || c == 0xC1) {
108 /* overlong encoding, reject */
109 machine->state = utf8state_reject;
110 } else if((c & 0x80) == 0) {
111 /* single byte, accept */
112 machine->s.byte[machine->len++] = c;
113 machine->state = utf8state_accept;
114 } else if((c & 0xC0) == 0x80) {
115 /* parser out of sync, ignore byte */
116 machine->state = utf8state_start;
117 } else if((c & 0xE0) == 0xC0) {
118 /* start of two byte sequence */
119 machine->s.byte[machine->len++] = c;
120 machine->state = utf8state_expect1;
121 } else if((c & 0xF0) == 0xE0) {
122 /* start of three byte sequence */
123 machine->s.byte[machine->len++] = c;
124 machine->state = utf8state_expect2;
125 } else if((c & 0xF8) == 0xF0) {
126 /* start of four byte sequence */
127 machine->s.byte[machine->len++] = c;
128 machine->state = utf8state_expect3;
130 /* overlong encoding, reject */
131 machine->state = utf8state_reject;
134 case utf8state_expect3:
135 machine->s.byte[machine->len++] = c;
136 if((c & 0xC0) == 0x80) {
137 /* all good, continue */
138 machine->state = utf8state_expect2;
140 /* missing extra byte, reject */
141 machine->state = utf8state_reject;
144 case utf8state_expect2:
145 machine->s.byte[machine->len++] = c;
146 if((c & 0xC0) == 0x80) {
147 /* all good, continue */
148 machine->state = utf8state_expect1;
150 /* missing extra byte, reject */
151 machine->state = utf8state_reject;
154 case utf8state_expect1:
155 machine->s.byte[machine->len++] = c;
156 if((c & 0xC0) == 0x80) {
157 /* all good, accept */
158 machine->state = utf8state_accept;
160 /* missing extra byte, reject */
161 machine->state = utf8state_reject;
165 machine->state = utf8state_reject;
169 return machine->state;
173 union utf8_char match;
174 union utf8_char replace;
176 /* Set last char_sub match to NULL char */
177 typedef struct char_sub *character_set;
179 struct char_sub CS_US[] = {
182 static struct char_sub CS_UK[] = {
183 {{{'#', 0, }}, {{0xC2, 0xA3, 0, }}},
186 static struct char_sub CS_SPECIAL[] = {
187 {{{'`', 0, }}, {{0xE2, 0x99, 0xA6, 0}}}, /* diamond */
188 {{{'a', 0, }}, {{0xE2, 0x96, 0x92, 0}}}, /* 50% cell */
189 {{{'b', 0, }}, {{0xE2, 0x90, 0x89, 0}}}, /* HT */
190 {{{'c', 0, }}, {{0xE2, 0x90, 0x8C, 0}}}, /* FF */
191 {{{'d', 0, }}, {{0xE2, 0x90, 0x8D, 0}}}, /* CR */
192 {{{'e', 0, }}, {{0xE2, 0x90, 0x8A, 0}}}, /* LF */
193 {{{'f', 0, }}, {{0xC2, 0xB0, 0, }}}, /* Degree */
194 {{{'g', 0, }}, {{0xC2, 0xB1, 0, }}}, /* Plus/Minus */
195 {{{'h', 0, }}, {{0xE2, 0x90, 0xA4, 0}}}, /* NL */
196 {{{'i', 0, }}, {{0xE2, 0x90, 0x8B, 0}}}, /* VT */
197 {{{'j', 0, }}, {{0xE2, 0x94, 0x98, 0}}}, /* CN_RB */
198 {{{'k', 0, }}, {{0xE2, 0x94, 0x90, 0}}}, /* CN_RT */
199 {{{'l', 0, }}, {{0xE2, 0x94, 0x8C, 0}}}, /* CN_LT */
200 {{{'m', 0, }}, {{0xE2, 0x94, 0x94, 0}}}, /* CN_RB */
201 {{{'n', 0, }}, {{0xE2, 0x94, 0xBC, 0}}}, /* CROSS */
202 {{{'o', 0, }}, {{0xE2, 0x94, 0x80, 0}}}, /* H */
203 {{{'p', 0, }}, {{0xE2, 0x94, 0x80, 0}}}, /* H */
204 {{{'q', 0, }}, {{0xE2, 0x94, 0x80, 0}}}, /* H */
205 {{{'r', 0, }}, {{0xE2, 0x94, 0x80, 0}}}, /* H */
206 {{{'s', 0, }}, {{0xE2, 0x94, 0x80, 0}}}, /* H */
207 {{{'t', 0, }}, {{0xE2, 0x94, 0x9C, 0}}}, /* TR */
208 {{{'u', 0, }}, {{0xE2, 0x94, 0xA4, 0}}}, /* TL */
209 {{{'v', 0, }}, {{0xE2, 0x94, 0xB4, 0}}}, /* TU */
210 {{{'w', 0, }}, {{0xE2, 0x94, 0xAC, 0}}}, /* TD */
211 {{{'x', 0, }}, {{0xE2, 0x94, 0x82, 0}}}, /* V */
212 {{{'y', 0, }}, {{0xE2, 0x89, 0xA4, 0}}}, /* LE */
213 {{{'z', 0, }}, {{0xE2, 0x89, 0xA5, 0}}}, /* GE */
214 {{{'{', 0, }}, {{0xCF, 0x80, 0, }}}, /* PI */
215 {{{'|', 0, }}, {{0xE2, 0x89, 0xA0, 0}}}, /* NEQ */
216 {{{'}', 0, }}, {{0xC2, 0xA3, 0, }}}, /* POUND */
217 {{{'~', 0, }}, {{0xE2, 0x8B, 0x85, 0}}}, /* DOT */
222 apply_char_set(character_set cs, union utf8_char *utf8)
226 while (cs[i].match.byte[0]) {
227 if ((*utf8).ch == cs[i].match.ch) {
228 *utf8 = cs[i].replace;
241 /* Set last key_sub sym to NULL */
242 typedef struct key_map *keyboard_mode;
244 static struct key_map KM_NORMAL[] = {
245 {XK_Left, 1, '[', 'D'},
246 {XK_Right, 1, '[', 'C'},
247 {XK_Up, 1, '[', 'A'},
248 {XK_Down, 1, '[', 'B'},
249 {XK_Home, 1, '[', 'H'},
250 {XK_End, 1, '[', 'F'},
253 static struct key_map KM_APPLICATION[] = {
254 {XK_Left, 1, 'O', 'D'},
255 {XK_Right, 1, 'O', 'C'},
256 {XK_Up, 1, 'O', 'A'},
257 {XK_Down, 1, 'O', 'B'},
258 {XK_Home, 1, 'O', 'H'},
259 {XK_End, 1, 'O', 'F'},
260 {XK_KP_Enter, 1, 'O', 'M'},
261 {XK_KP_Multiply, 1, 'O', 'j'},
262 {XK_KP_Add, 1, 'O', 'k'},
263 {XK_KP_Separator, 1, 'O', 'l'},
264 {XK_KP_Subtract, 1, 'O', 'm'},
265 {XK_KP_Divide, 1, 'O', 'o'},
270 function_key_response(char escape, int num, uint32_t modifiers,
271 char code, char *response)
276 if (modifiers & XKB_COMMON_SHIFT_MASK) mod_num |= 1;
277 if (modifiers & XKB_COMMON_MOD1_MASK) mod_num |= 2;
278 if (modifiers & XKB_COMMON_CONTROL_MASK) mod_num |= 4;
281 len = snprintf(response, MAX_RESPONSE, "\e[%d;%d%c",
282 num, mod_num + 1, code);
283 else if (code != '~')
284 len = snprintf(response, MAX_RESPONSE, "\e%c%c",
287 len = snprintf(response, MAX_RESPONSE, "\e%c%d%c",
290 if (len >= MAX_RESPONSE) return MAX_RESPONSE - 1;
294 /* returns the number of bytes written into response,
295 * which must have room for MAX_RESPONSE bytes */
297 apply_key_map(keyboard_mode mode, int sym, uint32_t modifiers, char *response)
303 while (mode[i].sym) {
305 if (sym == map.sym) {
306 len = function_key_response(map.escape, map.num,
316 struct terminal_color { double r, g, b, a; };
318 unsigned char fg, bg;
319 char a; /* attributes format:
322 char r; /* reserved */
324 struct color_scheme {
325 struct terminal_color palette[16];
327 struct attr default_attr;
331 attr_init(struct attr *data_attr, struct attr attr, int n)
334 for (i = 0; i < n; i++) {
340 escape_state_normal = 0,
345 escape_state_inner_escape,
350 #define ESC_FLAG_WHAT 0x01
351 #define ESC_FLAG_GT 0x02
352 #define ESC_FLAG_BANG 0x04
353 #define ESC_FLAG_CASH 0x08
354 #define ESC_FLAG_SQUOTE 0x10
355 #define ESC_FLAG_DQUOTE 0x20
356 #define ESC_FLAG_SPACE 0x40
359 struct window *window;
360 struct display *display;
361 union utf8_char *data;
363 struct attr *data_attr;
364 struct attr curr_attr;
367 char saved_origin_mode;
368 struct attr saved_attr;
369 union utf8_char last_char;
370 int margin_top, margin_bottom;
371 character_set cs, g0, g1;
372 character_set saved_cs, saved_g0, saved_g1;
373 keyboard_mode key_mode;
374 int data_pitch, attr_pitch; /* The width in bytes of a line */
375 int width, height, start, row, column;
376 int saved_row, saved_column;
380 char escape[MAX_ESCAPE];
382 enum escape_state state;
383 enum escape_state outer_state;
385 struct utf8_state_machine state_machine;
389 struct color_scheme *color_scheme;
390 struct terminal_color color_table[256];
391 cairo_font_extents_t extents;
392 cairo_scaled_font_t *font_normal, *font_bold;
395 struct wl_selection *selection;
396 struct wl_selection_offer *selection_offer;
397 uint32_t selection_offer_has_text;
398 int32_t dragging, selection_active;
399 int selection_start_x, selection_start_y;
400 int selection_end_x, selection_end_y;
403 /* Create default tab stops, every 8 characters */
405 terminal_init_tabs(struct terminal *terminal)
409 while (i < terminal->width) {
411 terminal->tab_ruler[i] = 1;
413 terminal->tab_ruler[i] = 0;
419 terminal_init(struct terminal *terminal)
421 terminal->curr_attr = terminal->color_scheme->default_attr;
422 terminal->origin_mode = 0;
423 terminal->mode = MODE_SHOW_CURSOR |
429 terminal->column = 0;
431 terminal->g0 = CS_US;
432 terminal->g1 = CS_US;
433 terminal->cs = terminal->g0;
434 terminal->key_mode = KM_NORMAL;
436 terminal->saved_g0 = terminal->g0;
437 terminal->saved_g1 = terminal->g1;
438 terminal->saved_cs = terminal->cs;
440 terminal->saved_attr = terminal->curr_attr;
441 terminal->saved_origin_mode = terminal->origin_mode;
442 terminal->saved_row = terminal->row;
443 terminal->saved_column = terminal->column;
445 if (terminal->tab_ruler != NULL) terminal_init_tabs(terminal);
449 init_color_table(struct terminal *terminal)
452 struct terminal_color *color_table = terminal->color_table;
454 for (c = 0; c < 256; c ++) {
456 color_table[c] = terminal->color_scheme->palette[c];
457 } else if (c < 232) {
459 color_table[c].b = ((double)(r % 6) / 6.0); r /= 6;
460 color_table[c].g = ((double)(r % 6) / 6.0); r /= 6;
461 color_table[c].r = ((double)(r % 6) / 6.0);
462 color_table[c].a = 1.0;
464 r = (c - 232) * 10 + 8;
465 color_table[c].r = ((double) r) / 256.0;
466 color_table[c].g = color_table[c].r;
467 color_table[c].b = color_table[c].r;
468 color_table[c].a = 1.0;
473 static union utf8_char *
474 terminal_get_row(struct terminal *terminal, int row)
478 index = (row + terminal->start) % terminal->height;
480 return &terminal->data[index * terminal->width];
484 terminal_get_attr_row(struct terminal *terminal, int row)
488 index = (row + terminal->start) % terminal->height;
490 return &terminal->data_attr[index * terminal->width];
499 terminal_compare_position(struct terminal *terminal,
500 int x, int y, int32_t ref_row, int32_t ref_col)
502 struct rectangle allocation;
503 int top_margin, side_margin, col, row, ref_x;
505 window_get_child_allocation(terminal->window, &allocation);
506 side_margin = allocation.x + (allocation.width - terminal->width * terminal->extents.max_x_advance) / 2;
507 top_margin = allocation.y + (allocation.height - terminal->height * terminal->extents.height) / 2;
509 col = (x - side_margin) / terminal->extents.max_x_advance;
510 row = (y - top_margin) / terminal->extents.height;
512 ref_x = side_margin + ref_col * terminal->extents.max_x_advance +
513 terminal->extents.max_x_advance / 2;
517 if (row == ref_row) {
520 if (col == ref_col && x < ref_x)
528 terminal_decode_attr(struct terminal *terminal, int row, int col,
529 union decoded_attr *decoded)
532 int foreground, background, tmp;
533 int inverse = 0, start_cmp, end_cmp;
536 terminal_compare_position(terminal,
537 terminal->selection_start_x,
538 terminal->selection_start_y,
541 terminal_compare_position(terminal,
542 terminal->selection_end_x,
543 terminal->selection_end_y,
545 if (start_cmp < 0 && end_cmp > 0)
547 else if (end_cmp < 0 && start_cmp > 0)
550 /* get the attributes for this character cell */
551 attr = terminal_get_attr_row(terminal, row)[col];
552 if ((attr.a & ATTRMASK_INVERSE) ||
554 ((terminal->mode & MODE_SHOW_CURSOR) &&
555 terminal->focused && terminal->row == row &&
556 terminal->column == col)) {
557 foreground = attr.bg;
558 background = attr.fg;
559 if (attr.a & ATTRMASK_BOLD) {
560 if (foreground <= 16) foreground |= 0x08;
561 if (background <= 16) background &= 0x07;
564 foreground = attr.fg;
565 background = attr.bg;
568 if (terminal->mode & MODE_INVERSE) {
570 foreground = background;
572 if (attr.a & ATTRMASK_BOLD) {
573 if (foreground <= 16) foreground |= 0x08;
574 if (background <= 16) background &= 0x07;
578 decoded->attr.fg = foreground;
579 decoded->attr.bg = background;
580 decoded->attr.a = attr.a;
584 terminal_scroll_buffer(struct terminal *terminal, int d)
588 d = d % (terminal->height + 1);
589 terminal->start = (terminal->start + d) % terminal->height;
590 if (terminal->start < 0) terminal->start = terminal->height + terminal->start;
593 for(i = 0; i < d; i++) {
594 memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
595 attr_init(terminal_get_attr_row(terminal, i),
596 terminal->curr_attr, terminal->width);
599 for(i = terminal->height - d; i < terminal->height; i++) {
600 memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
601 attr_init(terminal_get_attr_row(terminal, i),
602 terminal->curr_attr, terminal->width);
608 terminal_scroll_window(struct terminal *terminal, int d)
612 int from_row, to_row;
614 // scrolling range is inclusive
615 window_height = terminal->margin_bottom - terminal->margin_top + 1;
616 d = d % (window_height + 1);
619 to_row = terminal->margin_bottom;
620 from_row = terminal->margin_bottom - d;
622 for (i = 0; i < (window_height - d); i++) {
623 memcpy(terminal_get_row(terminal, to_row - i),
624 terminal_get_row(terminal, from_row - i),
625 terminal->data_pitch);
626 memcpy(terminal_get_attr_row(terminal, to_row - i),
627 terminal_get_attr_row(terminal, from_row - i),
628 terminal->attr_pitch);
630 for (i = terminal->margin_top; i < (terminal->margin_top + d); i++) {
631 memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
632 attr_init(terminal_get_attr_row(terminal, i),
633 terminal->curr_attr, terminal->width);
636 to_row = terminal->margin_top;
637 from_row = terminal->margin_top + d;
639 for (i = 0; i < (window_height - d); i++) {
640 memcpy(terminal_get_row(terminal, to_row + i),
641 terminal_get_row(terminal, from_row + i),
642 terminal->data_pitch);
643 memcpy(terminal_get_attr_row(terminal, to_row + i),
644 terminal_get_attr_row(terminal, from_row + i),
645 terminal->attr_pitch);
647 for (i = terminal->margin_bottom - d + 1; i <= terminal->margin_bottom; i++) {
648 memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
649 attr_init(terminal_get_attr_row(terminal, i),
650 terminal->curr_attr, terminal->width);
656 terminal_scroll(struct terminal *terminal, int d)
658 if(terminal->margin_top == 0 && terminal->margin_bottom == terminal->height - 1)
659 terminal_scroll_buffer(terminal, d);
661 terminal_scroll_window(terminal, d);
665 terminal_shift_line(struct terminal *terminal, int d)
667 union utf8_char *row;
668 struct attr *attr_row, attr;
670 row = terminal_get_row(terminal, terminal->row);
671 attr_row = terminal_get_attr_row(terminal, terminal->row);
673 if ((terminal->width + d) <= terminal->column)
674 d = terminal->column + 1 - terminal->width;
675 if ((terminal->column + d) >= terminal->width)
676 d = terminal->width - terminal->column - 1;
680 memmove(&row[terminal->column],
681 &row[terminal->column + d],
682 (terminal->width - terminal->column - d) * sizeof(union utf8_char));
683 attr = attr_row[terminal->width - 1];
684 memmove(&attr_row[terminal->column], &attr_row[terminal->column + d],
685 (terminal->width - terminal->column - d) * sizeof(struct attr));
686 memset(&row[terminal->width - d], 0, d * sizeof(union utf8_char));
687 attr_init(&attr_row[terminal->width - d], terminal->curr_attr, d);
689 memmove(&row[terminal->column + d], &row[terminal->column],
690 (terminal->width - terminal->column - d) * sizeof(union utf8_char));
691 memmove(&attr_row[terminal->column + d], &attr_row[terminal->column],
692 (terminal->width - terminal->column - d) * sizeof(struct attr));
693 memset(&row[terminal->column], 0, d * sizeof(union utf8_char));
694 attr_init(&attr_row[terminal->column], terminal->curr_attr, d);
699 terminal_resize(struct terminal *terminal, int width, int height)
702 union utf8_char *data;
703 struct attr *data_attr;
705 int data_pitch, attr_pitch;
706 int i, l, total_rows, start;
707 struct rectangle allocation;
709 int32_t pixel_width, pixel_height;
715 if (terminal->width == width && terminal->height == height)
718 if (!terminal->fullscreen) {
719 pixel_width = width *
720 terminal->extents.max_x_advance + 2 * terminal->margin;
721 pixel_height = height *
722 terminal->extents.height + 2 * terminal->margin;
723 window_set_child_size(terminal->window,
724 pixel_width, pixel_height);
727 window_schedule_redraw (terminal->window);
729 data_pitch = width * sizeof(union utf8_char);
730 size = data_pitch * height;
732 attr_pitch = width * sizeof(struct attr);
733 data_attr = malloc(attr_pitch * height);
734 tab_ruler = malloc(width);
735 memset(data, 0, size);
736 memset(tab_ruler, 0, width);
737 attr_init(data_attr, terminal->curr_attr, width * height);
738 if (terminal->data && terminal->data_attr) {
739 if (width > terminal->width)
744 if (terminal->height > height) {
746 start = terminal->height - height;
748 total_rows = terminal->height;
752 for (i = 0; i < total_rows; i++) {
753 memcpy(&data[width * i],
754 terminal_get_row(terminal, i),
755 l * sizeof(union utf8_char));
756 memcpy(&data_attr[width * i],
757 terminal_get_attr_row(terminal, i),
758 l * sizeof(struct attr));
761 free(terminal->data);
762 free(terminal->data_attr);
763 free(terminal->tab_ruler);
766 terminal->data_pitch = data_pitch;
767 terminal->attr_pitch = attr_pitch;
768 terminal->margin_bottom =
769 height - (terminal->height - terminal->margin_bottom);
770 terminal->width = width;
771 terminal->height = height;
772 terminal->data = data;
773 terminal->data_attr = data_attr;
774 terminal->tab_ruler = tab_ruler;
775 terminal_init_tabs(terminal);
777 /* Update the window size */
778 ws.ws_row = terminal->height;
779 ws.ws_col = terminal->width;
780 window_get_child_allocation(terminal->window, &allocation);
781 ws.ws_xpixel = allocation.width;
782 ws.ws_ypixel = allocation.height;
783 ioctl(terminal->master, TIOCSWINSZ, &ws);
786 struct color_scheme DEFAULT_COLORS = {
788 {0, 0, 0, 1}, /* black */
789 {0.66, 0, 0, 1}, /* red */
790 {0 , 0.66, 0, 1}, /* green */
791 {0.66, 0.33, 0, 1}, /* orange (nicer than muddy yellow) */
792 {0 , 0 , 0.66, 1}, /* blue */
793 {0.66, 0 , 0.66, 1}, /* magenta */
794 {0, 0.66, 0.66, 1}, /* cyan */
795 {0.66, 0.66, 0.66, 1}, /* light grey */
796 {0.22, 0.33, 0.33, 1}, /* dark grey */
797 {1, 0.33, 0.33, 1}, /* high red */
798 {0.33, 1, 0.33, 1}, /* high green */
799 {1, 1, 0.33, 1}, /* high yellow */
800 {0.33, 0.33, 1, 1}, /* high blue */
801 {1, 0.33, 1, 1}, /* high magenta */
802 {0.33, 1, 1, 1}, /* high cyan */
803 {1, 1, 1, 1} /* white */
805 0, /* black border */
806 {7, 0, 0, } /* bg:black (0), fg:light gray (7) */
810 terminal_set_color(struct terminal *terminal, cairo_t *cr, int index)
812 cairo_set_source_rgba(cr,
813 terminal->color_table[index].r,
814 terminal->color_table[index].g,
815 terminal->color_table[index].b,
816 terminal->color_table[index].a);
820 struct terminal *terminal;
823 union decoded_attr attr;
824 cairo_glyph_t glyphs[256], *g;
828 glyph_run_init(struct glyph_run *run, struct terminal *terminal, cairo_t *cr)
830 run->terminal = terminal;
832 run->g = run->glyphs;
838 glyph_run_flush(struct glyph_run *run, union decoded_attr attr)
840 cairo_scaled_font_t *font;
842 if (run->count > ARRAY_LENGTH(run->glyphs) - 10 ||
843 (attr.key != run->attr.key)) {
844 if (run->attr.attr.a & (ATTRMASK_BOLD | ATTRMASK_BLINK))
845 font = run->terminal->font_bold;
847 font = run->terminal->font_normal;
848 cairo_set_scaled_font(run->cr, font);
849 terminal_set_color(run->terminal, run->cr,
852 if (!(run->attr.attr.a & ATTRMASK_CONCEALED))
853 cairo_show_glyphs (run->cr, run->glyphs, run->count);
854 run->g = run->glyphs;
861 glyph_run_add(struct glyph_run *run, int x, int y, union utf8_char *c)
864 cairo_scaled_font_t *font;
866 num_glyphs = ARRAY_LENGTH(run->glyphs) - run->count;
868 if (run->attr.attr.a & (ATTRMASK_BOLD | ATTRMASK_BLINK))
869 font = run->terminal->font_bold;
871 font = run->terminal->font_normal;
873 cairo_move_to(run->cr, x, y);
874 cairo_scaled_font_text_to_glyphs (font, x, y,
876 &run->g, &num_glyphs,
878 run->g += num_glyphs;
879 run->count += num_glyphs;
883 terminal_draw_contents(struct terminal *terminal)
885 struct rectangle allocation;
887 int top_margin, side_margin;
889 union utf8_char *p_row;
890 union decoded_attr attr;
892 cairo_surface_t *surface;
894 struct glyph_run run;
895 cairo_font_extents_t extents;
897 window_get_child_allocation(terminal->window, &allocation);
899 surface = display_create_surface(terminal->display, &allocation);
900 cr = cairo_create(surface);
901 cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
902 terminal_set_color(terminal, cr, terminal->color_scheme->border);
905 cairo_set_scaled_font(cr, terminal->font_normal);
907 extents = terminal->extents;
908 side_margin = (allocation.width - terminal->width * extents.max_x_advance) / 2;
909 top_margin = (allocation.height - terminal->height * extents.height) / 2;
911 cairo_set_line_width(cr, 1.0);
913 /* paint the background */
914 for (row = 0; row < terminal->height; row++) {
915 for (col = 0; col < terminal->width; col++) {
916 /* get the attributes for this character cell */
917 terminal_decode_attr(terminal, row, col, &attr);
919 if (attr.attr.bg == terminal->color_scheme->border)
922 terminal_set_color(terminal, cr, attr.attr.bg);
923 cairo_move_to(cr, side_margin + (col * extents.max_x_advance),
924 top_margin + (row * extents.height));
925 cairo_rel_line_to(cr, extents.max_x_advance, 0);
926 cairo_rel_line_to(cr, 0, extents.height);
927 cairo_rel_line_to(cr, -extents.max_x_advance, 0);
928 cairo_close_path(cr);
933 cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
935 /* paint the foreground */
936 glyph_run_init(&run, terminal, cr);
937 for (row = 0; row < terminal->height; row++) {
938 p_row = terminal_get_row(terminal, row);
939 for (col = 0; col < terminal->width; col++) {
940 /* get the attributes for this character cell */
941 terminal_decode_attr(terminal, row, col, &attr);
943 glyph_run_flush(&run, attr);
945 text_x = side_margin + col * extents.max_x_advance;
946 text_y = top_margin + extents.ascent + row * extents.height;
947 if (attr.attr.a & ATTRMASK_UNDERLINE) {
948 terminal_set_color(terminal, cr, attr.attr.fg);
949 cairo_move_to(cr, text_x, (double)text_y + 1.5);
950 cairo_line_to(cr, text_x + extents.max_x_advance, (double) text_y + 1.5);
954 glyph_run_add(&run, text_x, text_y, &p_row[col]);
959 glyph_run_flush(&run, attr);
961 if ((terminal->mode & MODE_SHOW_CURSOR) && !terminal->focused) {
964 cairo_set_line_width(cr, 1);
965 cairo_move_to(cr, side_margin + terminal->column * extents.max_x_advance + d,
966 top_margin + terminal->row * extents.height + d);
967 cairo_rel_line_to(cr, extents.max_x_advance - 2 * d, 0);
968 cairo_rel_line_to(cr, 0, extents.height - 2 * d);
969 cairo_rel_line_to(cr, -extents.max_x_advance + 2 * d, 0);
970 cairo_close_path(cr);
977 window_copy_surface(terminal->window, &allocation, surface);
979 cairo_surface_destroy(surface);
983 resize_handler(struct window *window,
984 int32_t pixel_width, int32_t pixel_height, void *data)
986 struct terminal *terminal = data;
987 int32_t width, height;
989 width = (pixel_width - 2 * terminal->margin) /
990 (int32_t) terminal->extents.max_x_advance;
991 height = (pixel_height - 2 * terminal->margin) /
992 (int32_t) terminal->extents.height;
994 terminal_resize(terminal, width, height);
998 terminal_draw(struct terminal *terminal)
1000 window_draw(terminal->window);
1001 terminal_draw_contents(terminal);
1002 window_flush(terminal->window);
1006 redraw_handler(struct window *window, void *data)
1008 struct terminal *terminal = data;
1010 terminal_draw(terminal);
1014 terminal_data(struct terminal *terminal, const char *data, size_t length);
1017 handle_char(struct terminal *terminal, union utf8_char utf8);
1020 handle_sgr(struct terminal *terminal, int code);
1023 handle_term_parameter(struct terminal *terminal, int code, int sr)
1027 if (terminal->escape_flags & ESC_FLAG_WHAT) {
1029 case 1: /* DECCKM */
1030 if (sr) terminal->key_mode = KM_APPLICATION;
1031 else terminal->key_mode = KM_NORMAL;
1033 case 2: /* DECANM */
1034 /* No VT52 support yet */
1035 terminal->g0 = CS_US;
1036 terminal->g1 = CS_US;
1037 terminal->cs = terminal->g0;
1039 case 3: /* DECCOLM */
1041 terminal_resize(terminal, 132, 24);
1043 terminal_resize(terminal, 80, 24);
1045 /* set columns, but also home cursor and clear screen */
1046 terminal->row = 0; terminal->column = 0;
1047 for (i = 0; i < terminal->height; i++) {
1048 memset(terminal_get_row(terminal, i),
1049 0, terminal->data_pitch);
1050 attr_init(terminal_get_attr_row(terminal, i),
1051 terminal->curr_attr, terminal->width);
1054 case 5: /* DECSCNM */
1055 if (sr) terminal->mode |= MODE_INVERSE;
1056 else terminal->mode &= ~MODE_INVERSE;
1059 terminal->origin_mode = sr;
1060 if (terminal->origin_mode)
1061 terminal->row = terminal->margin_top;
1064 terminal->column = 0;
1066 case 7: /* DECAWM */
1067 if (sr) terminal->mode |= MODE_AUTOWRAP;
1068 else terminal->mode &= ~MODE_AUTOWRAP;
1070 case 8: /* DECARM */
1071 if (sr) terminal->mode |= MODE_AUTOREPEAT;
1072 else terminal->mode &= ~MODE_AUTOREPEAT;
1075 if (sr) terminal->mode |= MODE_SHOW_CURSOR;
1076 else terminal->mode &= ~MODE_SHOW_CURSOR;
1078 case 1037: /* deleteSendsDel */
1079 if (sr) terminal->mode |= MODE_DELETE_SENDS_DEL;
1080 else terminal->mode &= ~MODE_DELETE_SENDS_DEL;
1082 case 1039: /* altSendsEscape */
1083 if (sr) terminal->mode |= MODE_ALT_SENDS_ESC;
1084 else terminal->mode &= ~MODE_ALT_SENDS_ESC;
1087 fprintf(stderr, "Unknown parameter: ?%d\n", code);
1093 if (sr) terminal->mode |= MODE_IRM;
1094 else terminal->mode &= ~MODE_IRM;
1097 if (sr) terminal->mode |= MODE_LF_NEWLINE;
1098 else terminal->mode &= ~MODE_LF_NEWLINE;
1101 fprintf(stderr, "Unknown parameter: %d\n", code);
1108 handle_dcs(struct terminal *terminal)
1113 handle_osc(struct terminal *terminal)
1118 handle_escape(struct terminal *terminal)
1120 union utf8_char *row;
1121 struct attr *attr_row;
1123 int i, count, x, y, top, bottom;
1124 int args[10], set[10] = { 0, };
1125 char response[MAX_RESPONSE] = {0, };
1127 terminal->escape[terminal->escape_length++] = '\0';
1129 p = &terminal->escape[2];
1130 while ((isdigit(*p) || *p == ';') && i < 10) {
1139 args[i] = strtol(p, &p, 10);
1146 count = set[0] ? args[0] : 1;
1147 if (count == 0) count = 1;
1148 terminal_shift_line(terminal, count);
1151 count = set[0] ? args[0] : 1;
1152 if (count == 0) count = 1;
1153 if (terminal->row - count >= terminal->margin_top)
1154 terminal->row -= count;
1156 terminal->row = terminal->margin_top;
1159 count = set[0] ? args[0] : 1;
1160 if (count == 0) count = 1;
1161 if (terminal->row + count <= terminal->margin_bottom)
1162 terminal->row += count;
1164 terminal->row = terminal->margin_bottom;
1167 count = set[0] ? args[0] : 1;
1168 if (count == 0) count = 1;
1169 if ((terminal->column + count) < terminal->width)
1170 terminal->column += count;
1172 terminal->column = terminal->width - 1;
1175 count = set[0] ? args[0] : 1;
1176 if (count == 0) count = 1;
1177 if ((terminal->column - count) >= 0)
1178 terminal->column -= count;
1180 terminal->column = 0;
1183 count = set[0] ? args[0] : 1;
1184 if (terminal->row + count <= terminal->margin_bottom)
1185 terminal->row += count;
1187 terminal->row = terminal->margin_bottom;
1188 terminal->column = 0;
1191 count = set[0] ? args[0] : 1;
1192 if (terminal->row - count >= terminal->margin_top)
1193 terminal->row -= count;
1195 terminal->row = terminal->margin_top;
1196 terminal->column = 0;
1199 y = set[0] ? args[0] : 1;
1200 y = y <= 0 ? 1 : y > terminal->width ? terminal->width : y;
1202 terminal->column = y - 1;
1206 x = (set[1] ? args[1] : 1) - 1;
1208 (x >= terminal->width ? terminal->width - 1 : x);
1210 y = (set[0] ? args[0] : 1) - 1;
1211 if (terminal->origin_mode) {
1212 y += terminal->margin_top;
1213 y = y < terminal->margin_top ? terminal->margin_top :
1214 (y > terminal->margin_bottom ? terminal->margin_bottom : y);
1217 (y >= terminal->height ? terminal->height - 1 : y);
1221 terminal->column = x;
1224 count = set[0] ? args[0] : 1;
1225 if (count == 0) count = 1;
1226 while (count > 0 && terminal->column < terminal->width) {
1227 if (terminal->tab_ruler[terminal->column]) count--;
1233 row = terminal_get_row(terminal, terminal->row);
1234 attr_row = terminal_get_attr_row(terminal, terminal->row);
1235 if (!set[0] || args[0] == 0 || args[0] > 2) {
1236 memset(&row[terminal->column],
1237 0, (terminal->width - terminal->column) * sizeof(union utf8_char));
1238 attr_init(&attr_row[terminal->column],
1239 terminal->curr_attr, terminal->width - terminal->column);
1240 for (i = terminal->row + 1; i < terminal->height; i++) {
1241 memset(terminal_get_row(terminal, i),
1242 0, terminal->data_pitch);
1243 attr_init(terminal_get_attr_row(terminal, i),
1244 terminal->curr_attr, terminal->width);
1246 } else if (args[0] == 1) {
1247 memset(row, 0, (terminal->column+1) * sizeof(union utf8_char));
1248 attr_init(attr_row, terminal->curr_attr, terminal->column+1);
1249 for (i = 0; i < terminal->row; i++) {
1250 memset(terminal_get_row(terminal, i),
1251 0, terminal->data_pitch);
1252 attr_init(terminal_get_attr_row(terminal, i),
1253 terminal->curr_attr, terminal->width);
1255 } else if (args[0] == 2) {
1256 for (i = 0; i < terminal->height; i++) {
1257 memset(terminal_get_row(terminal, i),
1258 0, terminal->data_pitch);
1259 attr_init(terminal_get_attr_row(terminal, i),
1260 terminal->curr_attr, terminal->width);
1265 row = terminal_get_row(terminal, terminal->row);
1266 attr_row = terminal_get_attr_row(terminal, terminal->row);
1267 if (!set[0] || args[0] == 0 || args[0] > 2) {
1268 memset(&row[terminal->column], 0,
1269 (terminal->width - terminal->column) * sizeof(union utf8_char));
1270 attr_init(&attr_row[terminal->column], terminal->curr_attr,
1271 terminal->width - terminal->column);
1272 } else if (args[0] == 1) {
1273 memset(row, 0, (terminal->column+1) * sizeof(union utf8_char));
1274 attr_init(attr_row, terminal->curr_attr, terminal->column+1);
1275 } else if (args[0] == 2) {
1276 memset(row, 0, terminal->data_pitch);
1277 attr_init(attr_row, terminal->curr_attr, terminal->width);
1281 count = set[0] ? args[0] : 1;
1282 if (count == 0) count = 1;
1283 if (terminal->row >= terminal->margin_top &&
1284 terminal->row < terminal->margin_bottom)
1286 top = terminal->margin_top;
1287 terminal->margin_top = terminal->row;
1288 terminal_scroll(terminal, 0 - count);
1289 terminal->margin_top = top;
1290 } else if (terminal->row == terminal->margin_bottom) {
1291 memset(terminal_get_row(terminal, terminal->row),
1292 0, terminal->data_pitch);
1293 attr_init(terminal_get_attr_row(terminal, terminal->row),
1294 terminal->curr_attr, terminal->width);
1298 count = set[0] ? args[0] : 1;
1299 if (count == 0) count = 1;
1300 if (terminal->row >= terminal->margin_top &&
1301 terminal->row < terminal->margin_bottom)
1303 top = terminal->margin_top;
1304 terminal->margin_top = terminal->row;
1305 terminal_scroll(terminal, count);
1306 terminal->margin_top = top;
1307 } else if (terminal->row == terminal->margin_bottom) {
1308 memset(terminal_get_row(terminal, terminal->row),
1309 0, terminal->data_pitch);
1313 count = set[0] ? args[0] : 1;
1314 if (count == 0) count = 1;
1315 terminal_shift_line(terminal, 0 - count);
1318 terminal_scroll(terminal, set[0] ? args[0] : 1);
1321 terminal_scroll(terminal, 0 - (set[0] ? args[0] : 1));
1324 count = set[0] ? args[0] : 1;
1325 if (count == 0) count = 1;
1326 if ((terminal->column + count) > terminal->width)
1327 count = terminal->width - terminal->column;
1328 row = terminal_get_row(terminal, terminal->row);
1329 attr_row = terminal_get_attr_row(terminal, terminal->row);
1330 memset(&row[terminal->column], 0, count * sizeof(union utf8_char));
1331 attr_init(&attr_row[terminal->column], terminal->curr_attr, count);
1334 count = set[0] ? args[0] : 1;
1335 if (count == 0) count = 1;
1336 while (count > 0 && terminal->column >= 0) {
1337 if (terminal->tab_ruler[terminal->column]) count--;
1343 y = set[0] ? args[0] : 1;
1344 y = y <= 0 ? 1 : y > terminal->width ? terminal->width : y;
1346 terminal->column = y - 1;
1349 count = set[0] ? args[0] : 1;
1350 if (count == 0) count = 1;
1351 if (terminal->last_char.byte[0])
1352 for (i = 0; i < count; i++)
1353 handle_char(terminal, terminal->last_char);
1354 terminal->last_char.byte[0] = 0;
1356 case 'c': /* Primary DA */
1357 write(terminal->master, "\e[?6c", 5);
1360 x = set[0] ? args[0] : 1;
1361 x = x <= 0 ? 1 : x > terminal->height ? terminal->height : x;
1363 terminal->row = x - 1;
1366 if (!set[0] || args[0] == 0) {
1367 terminal->tab_ruler[terminal->column] = 0;
1368 } else if (args[0] == 3) {
1369 memset(terminal->tab_ruler, 0, terminal->width);
1373 for(i = 0; i < 10 && set[i]; i++) {
1374 handle_term_parameter(terminal, args[i], 1);
1378 for(i = 0; i < 10 && set[i]; i++) {
1379 handle_term_parameter(terminal, args[i], 0);
1383 for(i = 0; i < 10; i++) {
1384 if (i <= 7 && set[i] && set[i + 1] &&
1385 set[i + 2] && args[i + 1] == 5)
1387 if (args[i] == 38) {
1388 handle_sgr(terminal, args[i + 2] + 256);
1390 } else if (args[i] == 48) {
1391 handle_sgr(terminal, args[i + 2] + 512);
1396 handle_sgr(terminal, args[i]);
1398 handle_sgr(terminal, 0);
1406 i = set[0] ? args[0] : 0;
1407 if (i == 0 || i == 5) {
1408 write(terminal->master, "\e[0n", 4);
1409 } else if (i == 6) {
1410 snprintf(response, MAX_RESPONSE, "\e[%d;%dR",
1411 terminal->origin_mode ?
1412 terminal->row+terminal->margin_top : terminal->row+1,
1413 terminal->column+1);
1414 write(terminal->master, response, strlen(response));
1419 terminal->margin_top = 0;
1420 terminal->margin_bottom = terminal->height-1;
1422 terminal->column = 0;
1424 top = (set[0] ? args[0] : 1) - 1;
1426 (top >= terminal->height ? terminal->height - 1 : top);
1427 bottom = (set[1] ? args[1] : 1) - 1;
1428 bottom = bottom < 0 ? 0 :
1429 (bottom >= terminal->height ? terminal->height - 1 : bottom);
1431 terminal->margin_top = top;
1432 terminal->margin_bottom = bottom;
1434 terminal->margin_top = 0;
1435 terminal->margin_bottom = terminal->height-1;
1437 if(terminal->origin_mode)
1438 terminal->row = terminal->margin_top;
1441 terminal->column = 0;
1445 terminal->saved_row = terminal->row;
1446 terminal->saved_column = terminal->column;
1449 terminal->row = terminal->saved_row;
1450 terminal->column = terminal->saved_column;
1453 fprintf(stderr, "Unknown CSI escape: %c\n", *p);
1459 handle_non_csi_escape(struct terminal *terminal, char code)
1464 if(terminal->row < terminal->margin_top) {
1465 terminal->row = terminal->margin_top;
1466 terminal_scroll(terminal, -1);
1470 terminal->column = 0;
1474 if(terminal->row > terminal->margin_bottom) {
1475 terminal->row = terminal->margin_bottom;
1476 terminal_scroll(terminal, +1);
1480 terminal_init(terminal);
1483 terminal->tab_ruler[terminal->column] = 1;
1485 case '7': /* DECSC */
1486 terminal->saved_row = terminal->row;
1487 terminal->saved_column = terminal->column;
1488 terminal->saved_attr = terminal->curr_attr;
1489 terminal->saved_origin_mode = terminal->origin_mode;
1490 terminal->saved_cs = terminal->cs;
1491 terminal->saved_g0 = terminal->g0;
1492 terminal->saved_g1 = terminal->g1;
1494 case '8': /* DECRC */
1495 terminal->row = terminal->saved_row;
1496 terminal->column = terminal->saved_column;
1497 terminal->curr_attr = terminal->saved_attr;
1498 terminal->origin_mode = terminal->saved_origin_mode;
1499 terminal->cs = terminal->saved_cs;
1500 terminal->g0 = terminal->saved_g0;
1501 terminal->g1 = terminal->saved_g1;
1503 case '=': /* DECPAM */
1504 terminal->key_mode = KM_APPLICATION;
1506 case '>': /* DECPNM */
1507 terminal->key_mode = KM_NORMAL;
1510 fprintf(stderr, "Unknown escape code: %c\n", code);
1516 handle_special_escape(struct terminal *terminal, char special, char code)
1520 if (special == '#') {
1523 /* fill with 'E', no cheap way to do this */
1524 memset(terminal->data, 0, terminal->data_pitch * terminal->height);
1525 numChars = terminal->width * terminal->height;
1526 for(i = 0; i < numChars; i++) {
1527 terminal->data[i].byte[0] = 'E';
1531 fprintf(stderr, "Unknown HASH escape #%c\n", code);
1534 } else if (special == '(' || special == ')') {
1538 terminal->g0 = CS_SPECIAL;
1540 terminal->g1 = CS_SPECIAL;
1544 terminal->g0 = CS_UK;
1546 terminal->g1 = CS_UK;
1550 terminal->g0 = CS_US;
1552 terminal->g1 = CS_US;
1555 fprintf(stderr, "Unknown character set %c\n", code);
1559 fprintf(stderr, "Unknown special escape %c%c\n", special, code);
1564 handle_sgr(struct terminal *terminal, int code)
1568 terminal->curr_attr = terminal->color_scheme->default_attr;
1571 terminal->curr_attr.a |= ATTRMASK_BOLD;
1572 if (terminal->curr_attr.fg < 8)
1573 terminal->curr_attr.fg += 8;
1576 terminal->curr_attr.a |= ATTRMASK_UNDERLINE;
1579 terminal->curr_attr.a |= ATTRMASK_BLINK;
1582 terminal->curr_attr.a |= ATTRMASK_CONCEALED;
1587 terminal->curr_attr.a &= ~ATTRMASK_BOLD;
1588 if (terminal->curr_attr.fg < 16 && terminal->curr_attr.fg >= 8)
1589 terminal->curr_attr.fg -= 8;
1592 terminal->curr_attr.a &= ~ATTRMASK_UNDERLINE;
1595 terminal->curr_attr.a &= ~ATTRMASK_BLINK;
1599 terminal->curr_attr.a |= ATTRMASK_INVERSE;
1602 terminal->curr_attr.a &= ~ATTRMASK_INVERSE;
1605 terminal->curr_attr.a &= ~ATTRMASK_CONCEALED;
1608 terminal->curr_attr.fg = terminal->color_scheme->default_attr.fg;
1611 terminal->curr_attr.bg = terminal->color_scheme->default_attr.bg;
1614 if(code >= 30 && code <= 37) {
1615 terminal->curr_attr.fg = code - 30;
1616 if (terminal->curr_attr.a & ATTRMASK_BOLD)
1617 terminal->curr_attr.fg += 8;
1618 } else if(code >= 40 && code <= 47) {
1619 terminal->curr_attr.bg = code - 40;
1620 } else if (code >= 90 && code <= 97) {
1621 terminal->curr_attr.fg = code - 90 + 8;
1622 } else if (code >= 100 && code <= 107) {
1623 terminal->curr_attr.bg = code - 100 + 8;
1624 } else if(code >= 256 && code < 512) {
1625 terminal->curr_attr.fg = code - 256;
1626 } else if(code >= 512 && code < 768) {
1627 terminal->curr_attr.bg = code - 512;
1629 fprintf(stderr, "Unknown SGR code: %d\n", code);
1635 /* Returns 1 if c was special, otherwise 0 */
1637 handle_special_char(struct terminal *terminal, char c)
1639 union utf8_char *row;
1640 struct attr *attr_row;
1642 row = terminal_get_row(terminal, terminal->row);
1643 attr_row = terminal_get_attr_row(terminal, terminal->row);
1647 terminal->column = 0;
1650 if (terminal->mode & MODE_LF_NEWLINE) {
1651 terminal->column = 0;
1657 if(terminal->row > terminal->margin_bottom) {
1658 terminal->row = terminal->margin_bottom;
1659 terminal_scroll(terminal, +1);
1664 while (terminal->column < terminal->width) {
1665 if (terminal->tab_ruler[terminal->column]) break;
1666 if (terminal->mode & MODE_IRM)
1667 terminal_shift_line(terminal, +1);
1668 row[terminal->column].byte[0] = ' ';
1669 row[terminal->column].byte[1] = '\0';
1670 attr_row[terminal->column] = terminal->curr_attr;
1673 if (terminal->column >= terminal->width) {
1674 terminal->column = terminal->width - 1;
1679 if (terminal->column >= terminal->width) {
1680 terminal->column = terminal->width - 2;
1681 } else if (terminal->column > 0) {
1683 } else if (terminal->mode & MODE_AUTOWRAP) {
1684 terminal->column = terminal->width - 1;
1686 if (terminal->row < terminal->margin_top) {
1687 terminal->row = terminal->margin_top;
1688 terminal_scroll(terminal, -1);
1696 case '\x0E': /* SO */
1697 terminal->cs = terminal->g1;
1699 case '\x0F': /* SI */
1700 terminal->cs = terminal->g0;
1710 handle_char(struct terminal *terminal, union utf8_char utf8)
1712 union utf8_char *row;
1713 struct attr *attr_row;
1715 if (handle_special_char(terminal, utf8.byte[0])) return;
1717 apply_char_set(terminal->cs, &utf8);
1719 /* There are a whole lot of non-characters, control codes,
1720 * and formatting codes that should probably be ignored,
1722 if (strncmp((char*) utf8.byte, "\xEF\xBB\xBF", 3) == 0) {
1727 /* Some of these non-characters should be translated, e.g.: */
1728 if (utf8.byte[0] < 32) {
1729 utf8.byte[0] = utf8.byte[0] + 64;
1732 /* handle right margin effects */
1733 if (terminal->column >= terminal->width) {
1734 if (terminal->mode & MODE_AUTOWRAP) {
1735 terminal->column = 0;
1737 if (terminal->row > terminal->margin_bottom) {
1738 terminal->row = terminal->margin_bottom;
1739 terminal_scroll(terminal, +1);
1746 row = terminal_get_row(terminal, terminal->row);
1747 attr_row = terminal_get_attr_row(terminal, terminal->row);
1749 if (terminal->mode & MODE_IRM)
1750 terminal_shift_line(terminal, +1);
1751 row[terminal->column] = utf8;
1752 attr_row[terminal->column++] = terminal->curr_attr;
1754 if (utf8.ch != terminal->last_char.ch)
1755 terminal->last_char = utf8;
1759 escape_append_utf8(struct terminal *terminal, union utf8_char utf8)
1763 if ((utf8.byte[0] & 0x80) == 0x00) len = 1;
1764 else if ((utf8.byte[0] & 0xE0) == 0xC0) len = 2;
1765 else if ((utf8.byte[0] & 0xF0) == 0xE0) len = 3;
1766 else if ((utf8.byte[0] & 0xF8) == 0xF0) len = 4;
1767 else len = 1; /* Invalid, cannot happen */
1769 if (terminal->escape_length + len <= MAX_ESCAPE) {
1770 for (i = 0; i < len; i++)
1771 terminal->escape[terminal->escape_length + i] = utf8.byte[i];
1772 terminal->escape_length += len;
1773 } else if (terminal->escape_length < MAX_ESCAPE) {
1774 terminal->escape[terminal->escape_length++] = 0;
1779 terminal_data(struct terminal *terminal, const char *data, size_t length)
1782 union utf8_char utf8;
1783 enum utf8_state parser_state;
1785 for (i = 0; i < length; i++) {
1787 utf8_next_char(&terminal->state_machine, data[i]);
1788 switch(parser_state) {
1789 case utf8state_accept:
1790 utf8.ch = terminal->state_machine.s.ch;
1792 case utf8state_reject:
1793 /* the unicode replacement character */
1794 utf8.byte[0] = 0xEF;
1795 utf8.byte[1] = 0xBF;
1796 utf8.byte[2] = 0xBD;
1797 utf8.byte[3] = 0x00;
1803 /* assume escape codes never use non-ASCII characters */
1804 switch (terminal->state) {
1805 case escape_state_escape:
1806 escape_append_utf8(terminal, utf8);
1807 switch (utf8.byte[0]) {
1809 terminal->state = escape_state_dcs;
1812 terminal->state = escape_state_csi;
1815 terminal->state = escape_state_osc;
1819 case ')': /* special */
1820 terminal->state = escape_state_special;
1822 case '^': /* PM (not implemented) */
1823 case '_': /* APC (not implemented) */
1824 terminal->state = escape_state_ignore;
1827 terminal->state = escape_state_normal;
1828 handle_non_csi_escape(terminal, utf8.byte[0]);
1832 case escape_state_csi:
1833 if (handle_special_char(terminal, utf8.byte[0]) != 0) {
1835 } else if (utf8.byte[0] == '?') {
1836 terminal->escape_flags |= ESC_FLAG_WHAT;
1837 } else if (utf8.byte[0] == '>') {
1838 terminal->escape_flags |= ESC_FLAG_GT;
1839 } else if (utf8.byte[0] == '!') {
1840 terminal->escape_flags |= ESC_FLAG_BANG;
1841 } else if (utf8.byte[0] == '$') {
1842 terminal->escape_flags |= ESC_FLAG_CASH;
1843 } else if (utf8.byte[0] == '\'') {
1844 terminal->escape_flags |= ESC_FLAG_SQUOTE;
1845 } else if (utf8.byte[0] == '"') {
1846 terminal->escape_flags |= ESC_FLAG_DQUOTE;
1847 } else if (utf8.byte[0] == ' ') {
1848 terminal->escape_flags |= ESC_FLAG_SPACE;
1850 escape_append_utf8(terminal, utf8);
1851 if (terminal->escape_length >= MAX_ESCAPE)
1852 terminal->state = escape_state_normal;
1855 if (isalpha(utf8.byte[0]) || utf8.byte[0] == '@' ||
1856 utf8.byte[0] == '`')
1858 terminal->state = escape_state_normal;
1859 handle_escape(terminal);
1863 case escape_state_inner_escape:
1864 if (utf8.byte[0] == '\\') {
1865 terminal->state = escape_state_normal;
1866 if (terminal->outer_state == escape_state_dcs) {
1867 handle_dcs(terminal);
1868 } else if (terminal->outer_state == escape_state_osc) {
1869 handle_osc(terminal);
1871 } else if (utf8.byte[0] == '\e') {
1872 terminal->state = terminal->outer_state;
1873 escape_append_utf8(terminal, utf8);
1874 if (terminal->escape_length >= MAX_ESCAPE)
1875 terminal->state = escape_state_normal;
1877 terminal->state = terminal->outer_state;
1878 if (terminal->escape_length < MAX_ESCAPE)
1879 terminal->escape[terminal->escape_length++] = '\e';
1880 escape_append_utf8(terminal, utf8);
1881 if (terminal->escape_length >= MAX_ESCAPE)
1882 terminal->state = escape_state_normal;
1885 case escape_state_dcs:
1886 case escape_state_osc:
1887 case escape_state_ignore:
1888 if (utf8.byte[0] == '\e') {
1889 terminal->outer_state = terminal->state;
1890 terminal->state = escape_state_inner_escape;
1891 } else if (utf8.byte[0] == '\a' && terminal->state == escape_state_osc) {
1892 terminal->state = escape_state_normal;
1893 handle_osc(terminal);
1895 escape_append_utf8(terminal, utf8);
1896 if (terminal->escape_length >= MAX_ESCAPE)
1897 terminal->state = escape_state_normal;
1900 case escape_state_special:
1901 escape_append_utf8(terminal, utf8);
1902 terminal->state = escape_state_normal;
1903 if (isdigit(utf8.byte[0]) || isalpha(utf8.byte[0])) {
1904 handle_special_escape(terminal, terminal->escape[1],
1912 /* this is valid, because ASCII characters are never used to
1913 * introduce a multibyte sequence in UTF-8 */
1914 if (utf8.byte[0] == '\e') {
1915 terminal->state = escape_state_escape;
1916 terminal->outer_state = escape_state_normal;
1917 terminal->escape[0] = '\e';
1918 terminal->escape_length = 1;
1919 terminal->escape_flags = 0;
1921 handle_char(terminal, utf8);
1925 window_schedule_redraw(terminal->window);
1929 selection_listener_send(void *data, struct wl_selection *selection,
1930 const char *mime_type, int fd)
1932 static const char msg[] = "selection data";
1934 fprintf(stderr, "selection send, fd is %d\n", fd);
1935 write(fd, msg, sizeof msg - 1);
1940 selection_listener_cancelled(void *data, struct wl_selection *selection)
1942 fprintf(stderr, "selection cancelled\n");
1943 wl_selection_destroy(selection);
1946 static const struct wl_selection_listener selection_listener = {
1947 selection_listener_send,
1948 selection_listener_cancelled
1952 selection_io_func(GIOChannel *source, GIOCondition condition, gpointer data)
1954 struct terminal *terminal = data;
1959 fd = g_io_channel_unix_get_fd(source);
1960 len = read(fd, buffer, sizeof buffer);
1961 fprintf(stderr, "read %d bytes: %.*s\n", len, len, buffer);
1963 write(terminal->master, buffer, len);
1966 g_source_remove(terminal->tag);
1968 g_io_channel_unref(source);
1974 handle_bound_key(struct terminal *terminal,
1975 struct input *input, uint32_t sym, uint32_t time)
1977 struct wl_shell *shell;
1978 GIOChannel *channel;
1983 shell = display_get_shell(terminal->display);
1984 terminal->selection = wl_shell_create_selection(shell);
1985 wl_selection_add_listener(terminal->selection,
1986 &selection_listener, terminal);
1987 wl_selection_offer(terminal->selection, "text/plain");
1988 wl_selection_activate(terminal->selection,
1989 input_get_input_device(input), time);
1993 if (input_offers_mime_type(input, "text/plain")) {
1994 fd = input_receive_mime_type(input, "text/plain");
1995 channel = g_io_channel_unix_new(fd);
1996 terminal->tag = g_io_add_watch(channel, G_IO_IN,
2003 /* cut selection; terminal doesn't do cut */
2011 key_handler(struct window *window, struct input *input, uint32_t time,
2012 uint32_t key, uint32_t sym, uint32_t state, void *data)
2014 struct terminal *terminal = data;
2015 char ch[MAX_RESPONSE];
2019 modifiers = input_get_modifiers(input);
2020 if ((modifiers & XKB_COMMON_CONTROL_MASK) &&
2021 (modifiers & XKB_COMMON_SHIFT_MASK) &&
2022 state && handle_bound_key(terminal, input, sym, 0))
2029 terminal->fullscreen ^= 1;
2030 window_set_fullscreen(window, terminal->fullscreen);
2031 window_schedule_redraw(terminal->window);
2039 case XK_Scroll_Lock:
2042 ch[len++] = sym & 0x7f;
2046 if (terminal->mode & MODE_LF_NEWLINE) {
2063 len = function_key_response('[', 2, modifiers, '~', ch);
2066 if (terminal->mode & MODE_DELETE_SENDS_DEL) {
2069 len = function_key_response('[', 3, modifiers, '~', ch);
2073 len = function_key_response('[', 5, modifiers, '~', ch);
2076 len = function_key_response('[', 6, modifiers, '~', ch);
2079 len = function_key_response('O', 1, modifiers, 'P', ch);
2082 len = function_key_response('O', 1, modifiers, 'Q', ch);
2085 len = function_key_response('O', 1, modifiers, 'R', ch);
2088 len = function_key_response('O', 1, modifiers, 'S', ch);
2091 len = function_key_response('[', 15, modifiers, '~', ch);
2094 len = function_key_response('[', 17, modifiers, '~', ch);
2097 len = function_key_response('[', 18, modifiers, '~', ch);
2100 len = function_key_response('[', 19, modifiers, '~', ch);
2103 len = function_key_response('[', 20, modifiers, '~', ch);
2106 len = function_key_response('[', 21, modifiers, '~', ch);
2109 len = function_key_response('[', 24, modifiers, '~', ch);
2112 /* Handle special keys with alternate mappings */
2113 len = apply_key_map(terminal->key_mode, sym, modifiers, ch);
2114 if (len != 0) break;
2116 if (modifiers & XKB_COMMON_CONTROL_MASK) {
2117 if (sym >= '3' && sym <= '7')
2118 sym = (sym & 0x1f) + 8;
2120 if (!((sym >= '!' && sym <= '/') ||
2121 (sym >= '8' && sym <= '?') ||
2122 (sym >= '0' && sym <= '2'))) sym = sym & 0x1f;
2123 else if (sym == '2') sym = 0x00;
2124 else if (sym == '/') sym = 0x1F;
2125 else if (sym == '8' || sym == '?') sym = 0x7F;
2126 } else if ((terminal->mode & MODE_ALT_SENDS_ESC) &&
2127 (modifiers & XKB_COMMON_MOD1_MASK))
2130 } else if (modifiers & XKB_COMMON_MOD1_MASK) {
2139 if (state && len > 0)
2140 write(terminal->master, ch, len);
2144 keyboard_focus_handler(struct window *window,
2145 struct input *device, void *data)
2147 struct terminal *terminal = data;
2149 terminal->focused = (device != NULL);
2150 window_schedule_redraw(terminal->window);
2154 button_handler(struct window *window,
2155 struct input *input, uint32_t time,
2156 int button, int state, void *data)
2158 struct terminal *terminal = data;
2163 terminal->dragging = 1;
2164 terminal->selection_active = 0;
2165 input_get_position(input,
2166 &terminal->selection_start_x,
2167 &terminal->selection_start_y);
2168 terminal->selection_end_x = terminal->selection_start_x;
2169 terminal->selection_end_y = terminal->selection_start_y;
2170 window_schedule_redraw(window);
2172 terminal->dragging = 0;
2179 motion_handler(struct window *window,
2180 struct input *input, uint32_t time,
2181 int32_t x, int32_t y,
2182 int32_t sx, int32_t sy, void *data)
2184 struct terminal *terminal = data;
2186 if (terminal->dragging) {
2187 terminal->selection_active = 1;
2188 input_get_position(input,
2189 &terminal->selection_end_x,
2190 &terminal->selection_end_y);
2191 window_schedule_redraw(window);
2194 return POINTER_IBEAM;
2197 static struct terminal *
2198 terminal_create(struct display *display, int fullscreen)
2200 struct terminal *terminal;
2201 cairo_surface_t *surface;
2204 terminal = malloc(sizeof *terminal);
2205 if (terminal == NULL)
2208 memset(terminal, 0, sizeof *terminal);
2209 terminal->fullscreen = fullscreen;
2210 terminal->color_scheme = &DEFAULT_COLORS;
2211 terminal_init(terminal);
2212 terminal->margin_top = 0;
2213 terminal->margin_bottom = -1;
2214 terminal->window = window_create(display, "Wayland Terminal",
2217 init_state_machine(&terminal->state_machine);
2218 init_color_table(terminal);
2220 terminal->display = display;
2221 terminal->margin = 5;
2223 window_set_fullscreen(terminal->window, terminal->fullscreen);
2224 window_set_user_data(terminal->window, terminal);
2225 window_set_redraw_handler(terminal->window, redraw_handler);
2226 window_set_resize_handler(terminal->window, resize_handler);
2228 window_set_key_handler(terminal->window, key_handler);
2229 window_set_keyboard_focus_handler(terminal->window,
2230 keyboard_focus_handler);
2231 window_set_button_handler(terminal->window, button_handler);
2232 window_set_motion_handler(terminal->window, motion_handler);
2234 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 0, 0);
2235 cr = cairo_create(surface);
2236 cairo_set_font_size(cr, 14);
2237 cairo_select_font_face (cr, "mono",
2238 CAIRO_FONT_SLANT_NORMAL,
2239 CAIRO_FONT_WEIGHT_BOLD);
2240 terminal->font_bold = cairo_get_scaled_font (cr);
2241 cairo_scaled_font_reference(terminal->font_bold);
2243 cairo_select_font_face (cr, "mono",
2244 CAIRO_FONT_SLANT_NORMAL,
2245 CAIRO_FONT_WEIGHT_NORMAL);
2246 terminal->font_normal = cairo_get_scaled_font (cr);
2247 cairo_scaled_font_reference(terminal->font_normal);
2249 cairo_font_extents(cr, &terminal->extents);
2251 cairo_surface_destroy(surface);
2253 terminal_resize(terminal, 80, 24);
2254 terminal_draw(terminal);
2260 io_handler(GIOChannel *source,
2261 GIOCondition condition,
2264 struct terminal *terminal = data;
2267 GError *error = NULL;
2269 g_io_channel_read_chars(source, buffer, sizeof buffer,
2270 &bytes_read, &error);
2272 terminal_data(terminal, buffer, bytes_read);
2278 terminal_run(struct terminal *terminal, const char *path)
2283 pid = forkpty(&master, NULL, NULL, NULL);
2285 setenv("TERM", "xterm-256color", 1);
2286 setenv("COLORTERM", "xterm-256color", 1);
2287 if (execl(path, path, NULL)) {
2288 printf("exec failed: %m\n");
2291 } else if (pid < 0) {
2292 fprintf(stderr, "failed to fork and create pty (%m).\n");
2296 terminal->master = master;
2297 terminal->channel = g_io_channel_unix_new(master);
2298 fcntl(master, F_SETFL, O_NONBLOCK);
2299 g_io_add_watch(terminal->channel, G_IO_IN,
2300 io_handler, terminal);
2305 static const GOptionEntry option_entries[] = {
2306 { "fullscreen", 'f', 0, G_OPTION_ARG_NONE,
2307 &option_fullscreen, "Run in fullscreen mode" },
2311 int main(int argc, char *argv[])
2314 struct terminal *terminal;
2316 d = display_create(&argc, &argv, option_entries);
2318 fprintf(stderr, "failed to create display: %m\n");
2322 terminal = terminal_create(d, option_fullscreen);
2323 if (terminal_run(terminal, "/bin/bash"))