blob: 7316dcde081bcda720717fbf6e90c897e354458e [file] [log] [blame]
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05001/*
2 * Copyright © 2008 Kristian Høgsberg
3 *
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.
13 *
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
20 * OF THIS SOFTWARE.
21 */
22
23#include <stdint.h>
24#include <stdio.h>
25#include <stdlib.h>
26#include <string.h>
27#include <fcntl.h>
28#include <unistd.h>
29#include <math.h>
30#include <time.h>
Kristian Høgsberg269d6e32008-12-07 23:17:31 -050031#include <pty.h>
Kristian Høgsbergf04e8382008-12-08 00:07:49 -050032#include <ctype.h>
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -050033#include <cairo.h>
34#include <glib.h>
35
Kristian Høgsberg94adf6c2010-06-25 16:50:05 -040036#include <X11/keysym.h>
37
Kristian Høgsberg12308a42009-09-28 13:08:50 -040038#include "wayland-util.h"
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -050039#include "wayland-client.h"
40#include "wayland-glib.h"
41
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -050042#include "window.h"
43
Kristian Høgsberg0395f302008-12-22 12:14:50 -050044static int option_fullscreen;
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -050045
Kristian Høgsberg6e83d582008-12-08 00:01:36 -050046#define MOD_SHIFT 0x01
47#define MOD_ALT 0x02
48#define MOD_CTRL 0x04
49
Callum Lowcay30eeae52011-01-07 19:46:55 +000050#define ATTRMASK_BOLD 0x01
51#define ATTRMASK_UNDERLINE 0x02
52#define ATTRMASK_BLINK 0x04
53#define ATTRMASK_INVERSE 0x08
Callum Lowcay81179db2011-01-10 12:14:01 +130054#define ATTRMASK_CONCEALED 0x10
Callum Lowcay30eeae52011-01-07 19:46:55 +000055
Callum Lowcayb8609ad2011-01-07 19:46:57 +000056/* Buffer sizes */
Callum Lowcayef57a9b2011-01-14 20:46:23 +130057#define MAX_RESPONSE 256
58#define MAX_ESCAPE 255
Callum Lowcayb8609ad2011-01-07 19:46:57 +000059
Callum Lowcay8e57dd52011-01-07 19:46:59 +000060/* Terminal modes */
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
Callum Lowcay69e96582011-01-07 19:47:00 +000066#define MODE_IRM 0x00000020
Callum Lowcay7e08e902011-01-07 19:47:02 +000067#define MODE_DELETE_SENDS_DEL 0x00000040
68#define MODE_ALT_SENDS_ESC 0x00000080
Callum Lowcay8e57dd52011-01-07 19:46:59 +000069
Callum Lowcay15bdc5d2011-01-07 19:46:54 +000070union utf8_char {
71 unsigned char byte[4];
72 uint32_t ch;
73};
74
75enum utf8_state {
76 utf8state_start,
77 utf8state_accept,
78 utf8state_reject,
79 utf8state_expect3,
80 utf8state_expect2,
81 utf8state_expect1
82};
83
84struct utf8_state_machine {
85 enum utf8_state state;
86 int len;
87 union utf8_char s;
88};
89
90static void
91init_state_machine(struct utf8_state_machine *machine)
92{
93 machine->state = utf8state_start;
94 machine->len = 0;
95 machine->s.ch = 0;
96}
97
98static enum utf8_state
99utf8_next_char(struct utf8_state_machine *machine, char c)
100{
101 switch(machine->state) {
102 case utf8state_start:
103 case utf8state_accept:
104 case utf8state_reject:
105 machine->s.ch = 0;
106 machine->len = 0;
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;
129 } else {
130 /* overlong encoding, reject */
131 machine->state = utf8state_reject;
132 }
133 break;
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;
139 } else {
140 /* missing extra byte, reject */
141 machine->state = utf8state_reject;
142 }
143 break;
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;
149 } else {
150 /* missing extra byte, reject */
151 machine->state = utf8state_reject;
152 }
153 break;
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;
159 } else {
160 /* missing extra byte, reject */
161 machine->state = utf8state_reject;
162 }
163 break;
164 default:
165 machine->state = utf8state_reject;
166 break;
167 }
168
169 return machine->state;
170}
171
Callum Lowcay256e72f2011-01-07 19:47:01 +0000172struct char_sub {
173 union utf8_char match;
174 union utf8_char replace;
175};
176/* Set last char_sub match to NULL char */
177typedef struct char_sub *character_set;
178
179struct char_sub CS_US[] = {
180 {{{0, }}, {{0, }}}
181};
182static struct char_sub CS_UK[] = {
183 {{{'#', 0, }}, {{0xC2, 0xA3, 0, }}},
184 {{{0, }}, {{0, }}}
185};
186static 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 */
218 {{{0, }}, {{0, }}}
219};
220
221static void
222apply_char_set(character_set cs, union utf8_char *utf8)
223{
224 int i = 0;
225
226 while (cs[i].match.byte[0]) {
227 if ((*utf8).ch == cs[i].match.ch) {
228 *utf8 = cs[i].replace;
229 break;
230 }
231 i++;
232 }
233}
234
Callum Lowcay7e08e902011-01-07 19:47:02 +0000235struct key_map {
236 int sym;
237 int num;
238 char escape;
239 char code;
240};
241/* Set last key_sub sym to NULL */
242typedef struct key_map *keyboard_mode;
243
244static 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'},
251 {0, 0, 0, 0}
252};
253static 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'},
266 {0, 0, 0, 0}
267};
268
269static int
270function_key_response(char escape, int num, uint32_t modifiers,
271 char code, char *response)
272{
273 int mod_num = 0;
274 int len;
275
276 if (modifiers & WINDOW_MODIFIER_SHIFT) mod_num |= 1;
277 if (modifiers & WINDOW_MODIFIER_ALT) mod_num |= 2;
278 if (modifiers & WINDOW_MODIFIER_CONTROL) mod_num |= 4;
279
280 if (mod_num != 0)
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",
285 escape, code);
286 else
287 len = snprintf(response, MAX_RESPONSE, "\e%c%d%c",
288 escape, num, code);
289
290 if (len >= MAX_RESPONSE) return MAX_RESPONSE - 1;
291 else return len;
292}
293
294/* returns the number of bytes written into response,
295 * which must have room for MAX_RESPONSE bytes */
296static int
297apply_key_map(keyboard_mode mode, int sym, uint32_t modifiers, char *response)
298{
299 struct key_map map;
300 int len = 0;
301 int i = 0;
302
303 while (mode[i].sym) {
304 map = mode[i++];
305 if (sym == map.sym) {
306 len = function_key_response(map.escape, map.num,
307 modifiers, map.code,
308 response);
309 break;
310 }
311 }
312
313 return len;
314}
315
Callum Lowcay30eeae52011-01-07 19:46:55 +0000316struct terminal_color { double r, g, b, a; };
317struct attr {
318 unsigned char fg, bg;
319 char a; /* attributes format:
320 * 76543210
Callum Lowcay81179db2011-01-10 12:14:01 +1300321 * cilub */
Callum Lowcay30eeae52011-01-07 19:46:55 +0000322 char r; /* reserved */
323};
324struct color_scheme {
325 struct terminal_color palette[16];
Kristian Høgsberg71eca892011-01-11 10:13:00 -0500326 char border;
Callum Lowcay30eeae52011-01-07 19:46:55 +0000327 struct attr default_attr;
328};
329
330static void
331attr_init(struct attr *data_attr, struct attr attr, int n)
332{
333 int i;
334 for (i = 0; i < n; i++) {
335 data_attr[i] = attr;
336 }
337}
338
Callum Lowcay67a201d2011-01-12 19:23:41 +1300339enum escape_state {
340 escape_state_normal = 0,
341 escape_state_escape,
342 escape_state_dcs,
343 escape_state_csi,
344 escape_state_osc,
345 escape_state_inner_escape,
346 escape_state_ignore,
347 escape_state_special
348};
349
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
357
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -0500358struct terminal {
359 struct window *window;
Kristian Høgsberg43c28ee2009-01-26 23:42:46 -0500360 struct display *display;
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000361 union utf8_char *data;
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000362 char *tab_ruler;
Callum Lowcay30eeae52011-01-07 19:46:55 +0000363 struct attr *data_attr;
364 struct attr curr_attr;
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000365 uint32_t mode;
Callum Lowcaybbeac602011-01-07 19:46:58 +0000366 char origin_mode;
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000367 char saved_origin_mode;
368 struct attr saved_attr;
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000369 union utf8_char last_char;
Callum Lowcaybbeac602011-01-07 19:46:58 +0000370 int margin_top, margin_bottom;
Callum Lowcay256e72f2011-01-07 19:47:01 +0000371 character_set cs, g0, g1;
372 character_set saved_cs, saved_g0, saved_g1;
Callum Lowcay7e08e902011-01-07 19:47:02 +0000373 keyboard_mode key_mode;
Callum Lowcay30eeae52011-01-07 19:46:55 +0000374 int data_pitch, attr_pitch; /* The width in bytes of a line */
Kristian Høgsbergdbd54642008-12-08 22:22:25 -0500375 int width, height, start, row, column;
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000376 int saved_row, saved_column;
Kristian Høgsberg6e83d582008-12-08 00:01:36 -0500377 int fd, master;
Kristian Høgsberg269d6e32008-12-07 23:17:31 -0500378 GIOChannel *channel;
Kristian Høgsberg6e83d582008-12-08 00:01:36 -0500379 uint32_t modifiers;
Callum Lowcayef57a9b2011-01-14 20:46:23 +1300380 char escape[MAX_ESCAPE+1];
Kristian Høgsberg17809b12008-12-08 12:20:40 -0500381 int escape_length;
Callum Lowcay67a201d2011-01-12 19:23:41 +1300382 enum escape_state state;
383 enum escape_state outer_state;
384 int escape_flags;
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000385 struct utf8_state_machine state_machine;
Kristian Høgsberg1584c572008-12-08 12:59:37 -0500386 int margin;
Kristian Høgsberg0395f302008-12-22 12:14:50 -0500387 int fullscreen;
Kristian Høgsberg3c248cc2009-02-22 23:01:35 -0500388 int focused;
Kristian Høgsberg12308a42009-09-28 13:08:50 -0400389 struct color_scheme *color_scheme;
Callum Lowcay30eeae52011-01-07 19:46:55 +0000390 struct terminal_color color_table[256];
Kristian Høgsberg09531622010-06-14 23:22:15 -0400391 cairo_font_extents_t extents;
Kristian Høgsberg7ae6b1a2010-12-25 16:58:31 -0500392 cairo_scaled_font_t *font_normal, *font_bold;
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -0500393};
394
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000395/* Create default tab stops, every 8 characters */
396static void
397terminal_init_tabs(struct terminal *terminal)
398{
399 int i = 0;
400
401 while (i < terminal->width) {
402 if (i % 8 == 0)
403 terminal->tab_ruler[i] = 1;
404 else
405 terminal->tab_ruler[i] = 0;
406 i++;
407 }
408}
409
Callum Lowcay30eeae52011-01-07 19:46:55 +0000410static void
411terminal_init(struct terminal *terminal)
412{
413 terminal->curr_attr = terminal->color_scheme->default_attr;
Callum Lowcaybbeac602011-01-07 19:46:58 +0000414 terminal->origin_mode = 0;
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000415 terminal->mode = MODE_SHOW_CURSOR |
416 MODE_AUTOREPEAT |
Callum Lowcay7e08e902011-01-07 19:47:02 +0000417 MODE_ALT_SENDS_ESC |
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000418 MODE_AUTOWRAP;
Callum Lowcay30eeae52011-01-07 19:46:55 +0000419
420 terminal->row = 0;
421 terminal->column = 0;
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000422
Callum Lowcay256e72f2011-01-07 19:47:01 +0000423 terminal->g0 = CS_US;
424 terminal->g1 = CS_US;
425 terminal->cs = terminal->g0;
Callum Lowcay7e08e902011-01-07 19:47:02 +0000426 terminal->key_mode = KM_NORMAL;
Callum Lowcay256e72f2011-01-07 19:47:01 +0000427
428 terminal->saved_g0 = terminal->g0;
429 terminal->saved_g1 = terminal->g1;
430 terminal->saved_cs = terminal->cs;
431
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000432 terminal->saved_attr = terminal->curr_attr;
433 terminal->saved_origin_mode = terminal->origin_mode;
434 terminal->saved_row = terminal->row;
435 terminal->saved_column = terminal->column;
436
437 if (terminal->tab_ruler != NULL) terminal_init_tabs(terminal);
Callum Lowcay30eeae52011-01-07 19:46:55 +0000438}
439
440static void
441init_color_table(struct terminal *terminal)
442{
443 int c, r;
444 struct terminal_color *color_table = terminal->color_table;
445
446 for (c = 0; c < 256; c ++) {
447 if (c < 16) {
448 color_table[c] = terminal->color_scheme->palette[c];
449 } else if (c < 232) {
450 r = c - 16;
451 color_table[c].b = ((double)(r % 6) / 6.0); r /= 6;
452 color_table[c].g = ((double)(r % 6) / 6.0); r /= 6;
453 color_table[c].r = ((double)(r % 6) / 6.0);
454 color_table[c].a = 1.0;
455 } else {
456 r = (c - 232) * 10 + 8;
457 color_table[c].r = ((double) r) / 256.0;
458 color_table[c].g = color_table[c].r;
459 color_table[c].b = color_table[c].r;
460 color_table[c].a = 1.0;
461 }
462 }
463}
464
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000465static union utf8_char *
Kristian Høgsbergdbd54642008-12-08 22:22:25 -0500466terminal_get_row(struct terminal *terminal, int row)
467{
468 int index;
469
470 index = (row + terminal->start) % terminal->height;
471
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000472 return &terminal->data[index * terminal->width];
Kristian Høgsbergdbd54642008-12-08 22:22:25 -0500473}
474
Callum Lowcay30eeae52011-01-07 19:46:55 +0000475static struct attr*
Kristian Høgsberg8c254202010-12-25 08:58:46 -0500476terminal_get_attr_row(struct terminal *terminal, int row)
477{
Callum Lowcay30eeae52011-01-07 19:46:55 +0000478 int index;
479
480 index = (row + terminal->start) % terminal->height;
481
482 return &terminal->data_attr[index * terminal->width];
483}
484
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500485union decoded_attr {
Callum Lowcay9d708b02011-01-12 20:06:17 +1300486 struct attr attr;
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500487 uint32_t key;
Kristian Høgsberg01994a52011-01-11 10:26:04 -0500488};
489
490static void
491terminal_decode_attr(struct terminal *terminal, int row, int col,
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500492 union decoded_attr *decoded)
Kristian Høgsberg8c254202010-12-25 08:58:46 -0500493{
Kristian Høgsberg01994a52011-01-11 10:26:04 -0500494 struct attr attr;
495 int foreground, background, tmp;
496
497 /* get the attributes for this character cell */
498 attr = terminal_get_attr_row(terminal, row)[col];
499 if ((attr.a & ATTRMASK_INVERSE) ||
500 ((terminal->mode & MODE_SHOW_CURSOR) &&
501 terminal->focused && terminal->row == row &&
502 terminal->column == col)) {
503 foreground = attr.bg;
504 background = attr.fg;
505 if (attr.a & ATTRMASK_BOLD) {
506 if (foreground <= 16) foreground |= 0x08;
507 if (background <= 16) background &= 0x07;
508 }
509 } else {
510 foreground = attr.fg;
511 background = attr.bg;
512 }
513
514 if (terminal->mode & MODE_INVERSE) {
515 tmp = foreground;
516 foreground = background;
517 background = tmp;
518 if (attr.a & ATTRMASK_BOLD) {
519 if (foreground <= 16) foreground |= 0x08;
520 if (background <= 16) background &= 0x07;
521 }
522 }
523
Callum Lowcay9d708b02011-01-12 20:06:17 +1300524 decoded->attr.fg = foreground;
525 decoded->attr.bg = background;
526 decoded->attr.a = attr.a;
Callum Lowcay30eeae52011-01-07 19:46:55 +0000527}
528
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500529static void
Callum Lowcaybbeac602011-01-07 19:46:58 +0000530terminal_scroll_buffer(struct terminal *terminal, int d)
531{
532 int i;
533
534 d = d % (terminal->height + 1);
535 terminal->start = (terminal->start + d) % terminal->height;
536 if (terminal->start < 0) terminal->start = terminal->height + terminal->start;
537 if(d < 0) {
538 d = 0 - d;
539 for(i = 0; i < d; i++) {
540 memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
541 attr_init(terminal_get_attr_row(terminal, i),
542 terminal->curr_attr, terminal->width);
543 }
544 } else {
545 for(i = terminal->height - d; i < terminal->height; i++) {
546 memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
547 attr_init(terminal_get_attr_row(terminal, i),
548 terminal->curr_attr, terminal->width);
549 }
550 }
551}
552
553static void
554terminal_scroll_window(struct terminal *terminal, int d)
555{
556 int i;
557 int window_height;
558 int from_row, to_row;
Callum Lowcaybbeac602011-01-07 19:46:58 +0000559
560 // scrolling range is inclusive
561 window_height = terminal->margin_bottom - terminal->margin_top + 1;
562 d = d % (window_height + 1);
563 if(d < 0) {
564 d = 0 - d;
565 to_row = terminal->margin_bottom;
566 from_row = terminal->margin_bottom - d;
567
568 for (i = 0; i < (window_height - d); i++) {
569 memcpy(terminal_get_row(terminal, to_row - i),
570 terminal_get_row(terminal, from_row - i),
571 terminal->data_pitch);
572 memcpy(terminal_get_attr_row(terminal, to_row - i),
573 terminal_get_attr_row(terminal, from_row - i),
574 terminal->attr_pitch);
575 }
Callum Lowcaybbeac602011-01-07 19:46:58 +0000576 for (i = terminal->margin_top; i < (terminal->margin_top + d); i++) {
577 memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
Callum Lowcay86653ed2011-01-07 19:47:03 +0000578 attr_init(terminal_get_attr_row(terminal, i),
579 terminal->curr_attr, terminal->width);
Callum Lowcaybbeac602011-01-07 19:46:58 +0000580 }
581 } else {
582 to_row = terminal->margin_top;
583 from_row = terminal->margin_top + d;
584
585 for (i = 0; i < (window_height - d); i++) {
586 memcpy(terminal_get_row(terminal, to_row + i),
587 terminal_get_row(terminal, from_row + i),
588 terminal->data_pitch);
589 memcpy(terminal_get_attr_row(terminal, to_row + i),
590 terminal_get_attr_row(terminal, from_row + i),
591 terminal->attr_pitch);
592 }
Callum Lowcaybbeac602011-01-07 19:46:58 +0000593 for (i = terminal->margin_bottom - d + 1; i <= terminal->margin_bottom; i++) {
594 memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
Callum Lowcay86653ed2011-01-07 19:47:03 +0000595 attr_init(terminal_get_attr_row(terminal, i),
596 terminal->curr_attr, terminal->width);
Callum Lowcaybbeac602011-01-07 19:46:58 +0000597 }
598 }
599}
600
601static void
602terminal_scroll(struct terminal *terminal, int d)
603{
604 if(terminal->margin_top == 0 && terminal->margin_bottom == terminal->height - 1)
605 terminal_scroll_buffer(terminal, d);
606 else
607 terminal_scroll_window(terminal, d);
608}
609
610static void
Callum Lowcay69e96582011-01-07 19:47:00 +0000611terminal_shift_line(struct terminal *terminal, int d)
612{
613 union utf8_char *row;
614 struct attr *attr_row, attr;
615
616 row = terminal_get_row(terminal, terminal->row);
617 attr_row = terminal_get_attr_row(terminal, terminal->row);
618
619 if ((terminal->width + d) <= terminal->column)
620 d = terminal->column + 1 - terminal->width;
621 if ((terminal->column + d) >= terminal->width)
622 d = terminal->width - terminal->column - 1;
623
624 if (d < 0) {
625 d = 0 - d;
626 memmove(&row[terminal->column],
627 &row[terminal->column + d],
628 (terminal->width - terminal->column - d) * sizeof(union utf8_char));
629 attr = attr_row[terminal->width - 1];
630 memmove(&attr_row[terminal->column], &attr_row[terminal->column + d],
631 (terminal->width - terminal->column - d) * sizeof(struct attr));
632 memset(&row[terminal->width - d], 0, d * sizeof(union utf8_char));
633 attr_init(&attr_row[terminal->width - d], terminal->curr_attr, d);
634 } else {
635 memmove(&row[terminal->column + d], &row[terminal->column],
636 (terminal->width - terminal->column - d) * sizeof(union utf8_char));
637 memmove(&attr_row[terminal->column + d], &attr_row[terminal->column],
638 (terminal->width - terminal->column - d) * sizeof(struct attr));
639 memset(&row[terminal->column], 0, d * sizeof(union utf8_char));
640 attr_init(&attr_row[terminal->column], terminal->curr_attr, d);
641 }
642}
643
644static void
Kristian Høgsberg22106762008-12-08 13:50:07 -0500645terminal_resize(struct terminal *terminal, int width, int height)
646{
647 size_t size;
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000648 union utf8_char *data;
Callum Lowcay30eeae52011-01-07 19:46:55 +0000649 struct attr *data_attr;
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000650 char *tab_ruler;
Callum Lowcay30eeae52011-01-07 19:46:55 +0000651 int data_pitch, attr_pitch;
Kristian Høgsbergdbd54642008-12-08 22:22:25 -0500652 int i, l, total_rows, start;
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500653 struct rectangle allocation;
Callum Lowcaya0ee21c2011-01-07 19:46:56 +0000654 struct winsize ws;
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500655 int32_t pixel_width, pixel_height;
Kristian Høgsberg22106762008-12-08 13:50:07 -0500656
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500657 if (width < 1)
658 width = 1;
659 if (height < 1)
660 height = 1;
Kristian Høgsberg22106762008-12-08 13:50:07 -0500661 if (terminal->width == width && terminal->height == height)
662 return;
663
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500664 if (!terminal->fullscreen) {
665 pixel_width = width *
666 terminal->extents.max_x_advance + 2 * terminal->margin;
667 pixel_height = height *
668 terminal->extents.height + 2 * terminal->margin;
669 window_set_child_size(terminal->window,
670 pixel_width, pixel_height);
671 }
672
673 window_schedule_redraw (terminal->window);
674
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000675 data_pitch = width * sizeof(union utf8_char);
676 size = data_pitch * height;
Kristian Høgsberg22106762008-12-08 13:50:07 -0500677 data = malloc(size);
Callum Lowcay30eeae52011-01-07 19:46:55 +0000678 attr_pitch = width * sizeof(struct attr);
679 data_attr = malloc(attr_pitch * height);
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000680 tab_ruler = malloc(width);
Kristian Høgsberg22106762008-12-08 13:50:07 -0500681 memset(data, 0, size);
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000682 memset(tab_ruler, 0, width);
Callum Lowcay30eeae52011-01-07 19:46:55 +0000683 attr_init(data_attr, terminal->curr_attr, width * height);
684 if (terminal->data && terminal->data_attr) {
Kristian Høgsberg22106762008-12-08 13:50:07 -0500685 if (width > terminal->width)
686 l = terminal->width;
687 else
688 l = width;
689
Kristian Høgsbergdbd54642008-12-08 22:22:25 -0500690 if (terminal->height > height) {
Kristian Høgsberg22106762008-12-08 13:50:07 -0500691 total_rows = height;
Kristian Høgsbergdbd54642008-12-08 22:22:25 -0500692 start = terminal->height - height;
Kristian Høgsberg22106762008-12-08 13:50:07 -0500693 } else {
Kristian Høgsbergdbd54642008-12-08 22:22:25 -0500694 total_rows = terminal->height;
695 start = 0;
Kristian Høgsberg22106762008-12-08 13:50:07 -0500696 }
697
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000698 for (i = 0; i < total_rows; i++) {
699 memcpy(&data[width * i],
700 terminal_get_row(terminal, i),
701 l * sizeof(union utf8_char));
Callum Lowcay30eeae52011-01-07 19:46:55 +0000702 memcpy(&data_attr[width * i],
703 terminal_get_attr_row(terminal, i),
704 l * sizeof(struct attr));
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000705 }
Kristian Høgsberg22106762008-12-08 13:50:07 -0500706
707 free(terminal->data);
Callum Lowcay30eeae52011-01-07 19:46:55 +0000708 free(terminal->data_attr);
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000709 free(terminal->tab_ruler);
Kristian Høgsberg22106762008-12-08 13:50:07 -0500710 }
711
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000712 terminal->data_pitch = data_pitch;
Callum Lowcay30eeae52011-01-07 19:46:55 +0000713 terminal->attr_pitch = attr_pitch;
Callum Lowcay86653ed2011-01-07 19:47:03 +0000714 terminal->margin_bottom =
715 height - (terminal->height - terminal->margin_bottom);
Kristian Høgsberg22106762008-12-08 13:50:07 -0500716 terminal->width = width;
717 terminal->height = height;
718 terminal->data = data;
Callum Lowcay30eeae52011-01-07 19:46:55 +0000719 terminal->data_attr = data_attr;
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000720 terminal->tab_ruler = tab_ruler;
721 terminal_init_tabs(terminal);
Kristian Høgsberg22106762008-12-08 13:50:07 -0500722
Callum Lowcaya0ee21c2011-01-07 19:46:56 +0000723 /* Update the window size */
724 ws.ws_row = terminal->height;
725 ws.ws_col = terminal->width;
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500726 window_get_child_allocation(terminal->window, &allocation);
727 ws.ws_xpixel = allocation.width;
728 ws.ws_ypixel = allocation.height;
Callum Lowcaya0ee21c2011-01-07 19:46:56 +0000729 ioctl(terminal->master, TIOCSWINSZ, &ws);
Kristian Høgsberg22106762008-12-08 13:50:07 -0500730}
731
Callum Lowcay30eeae52011-01-07 19:46:55 +0000732struct color_scheme DEFAULT_COLORS = {
733 {
734 {0, 0, 0, 1}, /* black */
735 {0.66, 0, 0, 1}, /* red */
736 {0 , 0.66, 0, 1}, /* green */
737 {0.66, 0.33, 0, 1}, /* orange (nicer than muddy yellow) */
738 {0 , 0 , 0.66, 1}, /* blue */
739 {0.66, 0 , 0.66, 1}, /* magenta */
740 {0, 0.66, 0.66, 1}, /* cyan */
741 {0.66, 0.66, 0.66, 1}, /* light grey */
742 {0.22, 0.33, 0.33, 1}, /* dark grey */
743 {1, 0.33, 0.33, 1}, /* high red */
744 {0.33, 1, 0.33, 1}, /* high green */
745 {1, 1, 0.33, 1}, /* high yellow */
746 {0.33, 0.33, 1, 1}, /* high blue */
747 {1, 0.33, 1, 1}, /* high magenta */
748 {0.33, 1, 1, 1}, /* high cyan */
749 {1, 1, 1, 1} /* white */
750 },
Kristian Høgsberg71eca892011-01-11 10:13:00 -0500751 0, /* black border */
Callum Lowcay30eeae52011-01-07 19:46:55 +0000752 {7, 0, 0, } /* bg:black (0), fg:light gray (7) */
753};
Kristian Høgsberg12308a42009-09-28 13:08:50 -0400754
Kristian Høgsberg22106762008-12-08 13:50:07 -0500755static void
Kristian Høgsbergf106fd52011-01-11 10:11:39 -0500756terminal_set_color(struct terminal *terminal, cairo_t *cr, int index)
757{
758 cairo_set_source_rgba(cr,
759 terminal->color_table[index].r,
760 terminal->color_table[index].g,
761 terminal->color_table[index].b,
762 terminal->color_table[index].a);
763}
764
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500765struct glyph_run {
766 struct terminal *terminal;
767 cairo_t *cr;
768 int count;
769 union decoded_attr attr;
770 cairo_glyph_t glyphs[256], *g;
771};
772
773static void
774glyph_run_init(struct glyph_run *run, struct terminal *terminal, cairo_t *cr)
775{
776 run->terminal = terminal;
777 run->cr = cr;
778 run->g = run->glyphs;
779 run->count = 0;
780 run->attr.key = 0;
781}
782
783static void
784glyph_run_flush(struct glyph_run *run, union decoded_attr attr)
785{
786 cairo_scaled_font_t *font;
787
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500788 if (run->count > ARRAY_LENGTH(run->glyphs) - 10 ||
789 (attr.key != run->attr.key)) {
Callum Lowcay9d708b02011-01-12 20:06:17 +1300790 if (run->attr.attr.a & (ATTRMASK_BOLD | ATTRMASK_BLINK))
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500791 font = run->terminal->font_bold;
792 else
793 font = run->terminal->font_normal;
794 cairo_set_scaled_font(run->cr, font);
795 terminal_set_color(run->terminal, run->cr,
Callum Lowcay9d708b02011-01-12 20:06:17 +1300796 run->attr.attr.fg);
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500797
Callum Lowcay9d708b02011-01-12 20:06:17 +1300798 if (!(run->attr.attr.a & ATTRMASK_CONCEALED))
799 cairo_show_glyphs (run->cr, run->glyphs, run->count);
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500800 run->g = run->glyphs;
801 run->count = 0;
802 }
Callum Lowcay9d708b02011-01-12 20:06:17 +1300803 run->attr = attr;
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500804}
805
806static void
807glyph_run_add(struct glyph_run *run, int x, int y, union utf8_char *c)
808{
809 int num_glyphs;
810 cairo_scaled_font_t *font;
811
812 num_glyphs = ARRAY_LENGTH(run->glyphs) - run->count;
813
Callum Lowcay9d708b02011-01-12 20:06:17 +1300814 if (run->attr.attr.a & (ATTRMASK_BOLD | ATTRMASK_BLINK))
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500815 font = run->terminal->font_bold;
816 else
817 font = run->terminal->font_normal;
818
819 cairo_move_to(run->cr, x, y);
820 cairo_scaled_font_text_to_glyphs (font, x, y,
821 (char *) c->byte, 4,
822 &run->g, &num_glyphs,
823 NULL, NULL, NULL);
824 run->g += num_glyphs;
825 run->count += num_glyphs;
826}
827
Kristian Høgsbergf106fd52011-01-11 10:11:39 -0500828static void
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500829terminal_draw_contents(struct terminal *terminal)
830{
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500831 struct rectangle allocation;
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500832 cairo_t *cr;
833 cairo_font_extents_t extents;
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000834 int top_margin, side_margin;
835 int row, col;
836 union utf8_char *p_row;
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500837 union decoded_attr attr;
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000838 int text_x, text_y;
Kristian Høgsberg2aac3022009-12-21 10:04:53 -0500839 cairo_surface_t *surface;
Kristian Høgsberg3c248cc2009-02-22 23:01:35 -0500840 double d;
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500841 struct glyph_run run;
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500842
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500843 window_get_child_allocation(terminal->window, &allocation);
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000844
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500845 surface = display_create_surface(terminal->display, &allocation);
Kristian Høgsberg2aac3022009-12-21 10:04:53 -0500846 cr = cairo_create(surface);
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500847 cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
Kristian Høgsberg71eca892011-01-11 10:13:00 -0500848 terminal_set_color(terminal, cr, terminal->color_scheme->border);
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500849 cairo_paint(cr);
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500850
Kristian Høgsberg7ae6b1a2010-12-25 16:58:31 -0500851 cairo_set_scaled_font(cr, terminal->font_normal);
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500852
853 cairo_font_extents(cr, &extents);
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500854 side_margin = (allocation.width - terminal->width * extents.max_x_advance) / 2;
855 top_margin = (allocation.height - terminal->height * extents.height) / 2;
Kristian Høgsberg0395f302008-12-22 12:14:50 -0500856
Callum Lowcay30eeae52011-01-07 19:46:55 +0000857 cairo_set_line_width(cr, 1.0);
858
Kristian Høgsberg8c254202010-12-25 08:58:46 -0500859 /* paint the background */
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000860 for (row = 0; row < terminal->height; row++) {
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000861 for (col = 0; col < terminal->width; col++) {
Callum Lowcay30eeae52011-01-07 19:46:55 +0000862 /* get the attributes for this character cell */
Kristian Høgsberg01994a52011-01-11 10:26:04 -0500863 terminal_decode_attr(terminal, row, col, &attr);
Callum Lowcay30eeae52011-01-07 19:46:55 +0000864
Callum Lowcay9d708b02011-01-12 20:06:17 +1300865 if (attr.attr.bg == terminal->color_scheme->border)
Kristian Høgsbergfb266a32011-01-11 10:15:21 -0500866 continue;
867
Callum Lowcay9d708b02011-01-12 20:06:17 +1300868 terminal_set_color(terminal, cr, attr.attr.bg);
Callum Lowcay30eeae52011-01-07 19:46:55 +0000869 cairo_move_to(cr, side_margin + (col * extents.max_x_advance),
870 top_margin + (row * extents.height));
871 cairo_rel_line_to(cr, extents.max_x_advance, 0);
872 cairo_rel_line_to(cr, 0, extents.height);
873 cairo_rel_line_to(cr, -extents.max_x_advance, 0);
874 cairo_close_path(cr);
875 cairo_fill(cr);
Kristian Høgsberg8c254202010-12-25 08:58:46 -0500876 }
877 }
Callum Lowcay30eeae52011-01-07 19:46:55 +0000878
Kristian Høgsberg8c254202010-12-25 08:58:46 -0500879 cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
880
881 /* paint the foreground */
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500882 glyph_run_init(&run, terminal, cr);
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -0500883 for (row = 0; row < terminal->height; row++) {
884 p_row = terminal_get_row(terminal, row);
885 for (col = 0; col < terminal->width; col++) {
886 /* get the attributes for this character cell */
Kristian Høgsberg01994a52011-01-11 10:26:04 -0500887 terminal_decode_attr(terminal, row, col, &attr);
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500888
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500889 glyph_run_flush(&run, attr);
Callum Lowcay30eeae52011-01-07 19:46:55 +0000890
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000891 text_x = side_margin + col * extents.max_x_advance;
892 text_y = top_margin + extents.ascent + row * extents.height;
Callum Lowcay9d708b02011-01-12 20:06:17 +1300893 if (attr.attr.a & ATTRMASK_UNDERLINE) {
894 terminal_set_color(terminal, cr, attr.attr.fg);
Callum Lowcay86653ed2011-01-07 19:47:03 +0000895 cairo_move_to(cr, text_x, (double)text_y + 1.5);
896 cairo_line_to(cr, text_x + extents.max_x_advance, (double) text_y + 1.5);
Callum Lowcay30eeae52011-01-07 19:46:55 +0000897 cairo_stroke(cr);
898 }
Kristian Høgsberg4f506702010-12-25 16:14:23 -0500899
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500900 glyph_run_add(&run, text_x, text_y, &p_row[col]);
Callum Lowcay15bdc5d2011-01-07 19:46:54 +0000901 }
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500902 }
Kristian Høgsbergb0b82e22009-02-21 15:42:25 -0500903
Kristian Høgsberg1d3e9392011-01-11 11:06:49 -0500904 attr.key = ~0;
905 glyph_run_flush(&run, attr);
906
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000907 if ((terminal->mode & MODE_SHOW_CURSOR) && !terminal->focused) {
Callum Lowcay30eeae52011-01-07 19:46:55 +0000908 d = 0.5;
Kristian Høgsberg3c248cc2009-02-22 23:01:35 -0500909
Callum Lowcay30eeae52011-01-07 19:46:55 +0000910 cairo_set_line_width(cr, 1);
911 cairo_move_to(cr, side_margin + terminal->column * extents.max_x_advance + d,
912 top_margin + terminal->row * extents.height + d);
913 cairo_rel_line_to(cr, extents.max_x_advance - 2 * d, 0);
914 cairo_rel_line_to(cr, 0, extents.height - 2 * d);
915 cairo_rel_line_to(cr, -extents.max_x_advance + 2 * d, 0);
916 cairo_close_path(cr);
Kristian Høgsberg3c248cc2009-02-22 23:01:35 -0500917
Kristian Høgsberg3c248cc2009-02-22 23:01:35 -0500918 cairo_stroke(cr);
Callum Lowcay30eeae52011-01-07 19:46:55 +0000919 }
Kristian Høgsbergb0b82e22009-02-21 15:42:25 -0500920
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500921 cairo_destroy(cr);
922
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500923 window_copy_surface(terminal->window, &allocation, surface);
Kristian Høgsberg2aac3022009-12-21 10:04:53 -0500924
925 cairo_surface_destroy(surface);
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500926}
927
928static void
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500929resize_handler(struct window *window,
930 int32_t pixel_width, int32_t pixel_height, void *data)
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500931{
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500932 struct terminal *terminal = data;
Kristian Høgsberg0395f302008-12-22 12:14:50 -0500933 int32_t width, height;
Kristian Høgsberg22106762008-12-08 13:50:07 -0500934
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500935 width = (pixel_width - 2 * terminal->margin) /
Kristian Høgsberg09531622010-06-14 23:22:15 -0400936 (int32_t) terminal->extents.max_x_advance;
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500937 height = (pixel_height - 2 * terminal->margin) /
Kristian Høgsberg09531622010-06-14 23:22:15 -0400938 (int32_t) terminal->extents.height;
Tiago Vignatti5fd89d22011-01-10 19:30:04 +0200939
Kristian Høgsberg22106762008-12-08 13:50:07 -0500940 terminal_resize(terminal, width, height);
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500941}
Kristian Høgsberg22106762008-12-08 13:50:07 -0500942
Kristian Høgsbergda846ca2011-01-11 10:00:52 -0500943static void
944terminal_draw(struct terminal *terminal)
945{
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500946 window_draw(terminal->window);
947 terminal_draw_contents(terminal);
Kristian Høgsberg9d69f8e2010-09-03 14:46:38 -0400948 window_flush(terminal->window);
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500949}
950
Kristian Høgsberg80d746f2010-06-14 23:52:50 -0400951static void
952redraw_handler(struct window *window, void *data)
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -0500953{
954 struct terminal *terminal = data;
955
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -0500956 terminal_draw(terminal);
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -0500957}
958
Kristian Høgsberg17809b12008-12-08 12:20:40 -0500959static void
960terminal_data(struct terminal *terminal, const char *data, size_t length);
Kristian Høgsbergf04e8382008-12-08 00:07:49 -0500961
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -0500962static void
Callum Lowcayb8609ad2011-01-07 19:46:57 +0000963handle_char(struct terminal *terminal, union utf8_char utf8);
964
965static void
Callum Lowcay30eeae52011-01-07 19:46:55 +0000966handle_sgr(struct terminal *terminal, int code);
967
968static void
Callum Lowcaybbeac602011-01-07 19:46:58 +0000969handle_term_parameter(struct terminal *terminal, int code, int sr)
970{
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000971 int i;
972
Callum Lowcay67a201d2011-01-12 19:23:41 +1300973 if (terminal->escape_flags & ESC_FLAG_WHAT) {
Callum Lowcaybbeac602011-01-07 19:46:58 +0000974 switch(code) {
Callum Lowcay7e08e902011-01-07 19:47:02 +0000975 case 1: /* DECCKM */
976 if (sr) terminal->key_mode = KM_APPLICATION;
977 else terminal->key_mode = KM_NORMAL;
978 break;
Callum Lowcay256e72f2011-01-07 19:47:01 +0000979 case 2: /* DECANM */
980 /* No VT52 support yet */
981 terminal->g0 = CS_US;
982 terminal->g1 = CS_US;
983 terminal->cs = terminal->g0;
984 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +0000985 case 3: /* DECCOLM */
986 if (sr)
987 terminal_resize(terminal, 132, 24);
988 else
989 terminal_resize(terminal, 80, 24);
990
991 /* set columns, but also home cursor and clear screen */
992 terminal->row = 0; terminal->column = 0;
993 for (i = 0; i < terminal->height; i++) {
994 memset(terminal_get_row(terminal, i),
995 0, terminal->data_pitch);
996 attr_init(terminal_get_attr_row(terminal, i),
997 terminal->curr_attr, terminal->width);
998 }
999 break;
1000 case 5: /* DECSCNM */
1001 if (sr) terminal->mode |= MODE_INVERSE;
1002 else terminal->mode &= ~MODE_INVERSE;
1003 break;
Callum Lowcaybbeac602011-01-07 19:46:58 +00001004 case 6: /* DECOM */
1005 terminal->origin_mode = sr;
1006 if (terminal->origin_mode)
1007 terminal->row = terminal->margin_top;
1008 else
1009 terminal->row = 0;
1010 terminal->column = 0;
1011 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001012 case 7: /* DECAWM */
1013 if (sr) terminal->mode |= MODE_AUTOWRAP;
1014 else terminal->mode &= ~MODE_AUTOWRAP;
1015 break;
1016 case 8: /* DECARM */
1017 if (sr) terminal->mode |= MODE_AUTOREPEAT;
1018 else terminal->mode &= ~MODE_AUTOREPEAT;
1019 break;
1020 case 25:
1021 if (sr) terminal->mode |= MODE_SHOW_CURSOR;
1022 else terminal->mode &= ~MODE_SHOW_CURSOR;
1023 break;
Callum Lowcay7e08e902011-01-07 19:47:02 +00001024 case 1037: /* deleteSendsDel */
1025 if (sr) terminal->mode |= MODE_DELETE_SENDS_DEL;
1026 else terminal->mode &= ~MODE_DELETE_SENDS_DEL;
1027 break;
1028 case 1039: /* altSendsEscape */
1029 if (sr) terminal->mode |= MODE_ALT_SENDS_ESC;
1030 else terminal->mode &= ~MODE_ALT_SENDS_ESC;
1031 break;
Callum Lowcaybbeac602011-01-07 19:46:58 +00001032 default:
1033 fprintf(stderr, "Unknown parameter: ?%d\n", code);
1034 break;
1035 }
1036 } else {
1037 switch(code) {
Callum Lowcay69e96582011-01-07 19:47:00 +00001038 case 4: /* IRM */
1039 if (sr) terminal->mode |= MODE_IRM;
1040 else terminal->mode &= ~MODE_IRM;
1041 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001042 case 20: /* LNM */
1043 if (sr) terminal->mode |= MODE_LF_NEWLINE;
1044 else terminal->mode &= ~MODE_LF_NEWLINE;
1045 break;
Callum Lowcaybbeac602011-01-07 19:46:58 +00001046 default:
1047 fprintf(stderr, "Unknown parameter: %d\n", code);
1048 break;
1049 }
1050 }
1051}
1052
1053static void
Callum Lowcay67a201d2011-01-12 19:23:41 +13001054handle_dcs(struct terminal *terminal)
1055{
1056}
1057
1058static void
1059handle_osc(struct terminal *terminal)
1060{
Callum Lowcayef57a9b2011-01-14 20:46:23 +13001061 char *p;
1062 int code;
1063
1064 terminal->escape[terminal->escape_length++] = '\0';
1065 p = &terminal->escape[2];
1066 code = strtol(p, &p, 10);
1067 if (*p == ';') p++;
1068
1069 switch (code) {
1070 case 0: /* Icon name and window title */
1071 case 1: /* Icon label */
1072 case 2: /* Window title*/
1073 window_set_title(terminal->window, p);
1074 break;
1075 default:
1076 fprintf(stderr, "Unknown OSC escape code %d\n", code);
1077 break;
1078 }
Callum Lowcay67a201d2011-01-12 19:23:41 +13001079}
1080
1081static void
Kristian Høgsberg17809b12008-12-08 12:20:40 -05001082handle_escape(struct terminal *terminal)
1083{
Callum Lowcay15bdc5d2011-01-07 19:46:54 +00001084 union utf8_char *row;
Callum Lowcay30eeae52011-01-07 19:46:55 +00001085 struct attr *attr_row;
Callum Lowcay15bdc5d2011-01-07 19:46:54 +00001086 char *p;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001087 int i, count, x, y, top, bottom;
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001088 int args[10], set[10] = { 0, };
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001089 char response[MAX_RESPONSE] = {0, };
Callum Lowcayef57a9b2011-01-14 20:46:23 +13001090 struct rectangle allocation;
Kristian Høgsberg17809b12008-12-08 12:20:40 -05001091
1092 terminal->escape[terminal->escape_length++] = '\0';
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001093 i = 0;
1094 p = &terminal->escape[2];
1095 while ((isdigit(*p) || *p == ';') && i < 10) {
1096 if (*p == ';') {
Callum Lowcay30eeae52011-01-07 19:46:55 +00001097 if (!set[i]) {
1098 args[i] = 0;
1099 set[i] = 1;
1100 }
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001101 p++;
1102 i++;
1103 } else {
1104 args[i] = strtol(p, &p, 10);
1105 set[i] = 1;
Kristian Høgsberg17809b12008-12-08 12:20:40 -05001106 }
Kristian Høgsberg17809b12008-12-08 12:20:40 -05001107 }
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001108
1109 switch (*p) {
Callum Lowcay69e96582011-01-07 19:47:00 +00001110 case '@': /* ICH */
1111 count = set[0] ? args[0] : 1;
1112 if (count == 0) count = 1;
1113 terminal_shift_line(terminal, count);
1114 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001115 case 'A': /* CUU */
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001116 count = set[0] ? args[0] : 1;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001117 if (count == 0) count = 1;
1118 if (terminal->row - count >= terminal->margin_top)
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001119 terminal->row -= count;
1120 else
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001121 terminal->row = terminal->margin_top;
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001122 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001123 case 'B': /* CUD */
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001124 count = set[0] ? args[0] : 1;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001125 if (count == 0) count = 1;
1126 if (terminal->row + count <= terminal->margin_bottom)
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001127 terminal->row += count;
1128 else
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001129 terminal->row = terminal->margin_bottom;
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001130 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001131 case 'C': /* CUF */
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001132 count = set[0] ? args[0] : 1;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001133 if (count == 0) count = 1;
1134 if ((terminal->column + count) < terminal->width)
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001135 terminal->column += count;
1136 else
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001137 terminal->column = terminal->width - 1;
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001138 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001139 case 'D': /* CUB */
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001140 count = set[0] ? args[0] : 1;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001141 if (count == 0) count = 1;
1142 if ((terminal->column - count) >= 0)
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001143 terminal->column -= count;
1144 else
1145 terminal->column = 0;
1146 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001147 case 'E': /* CNL */
1148 count = set[0] ? args[0] : 1;
1149 if (terminal->row + count <= terminal->margin_bottom)
1150 terminal->row += count;
1151 else
1152 terminal->row = terminal->margin_bottom;
1153 terminal->column = 0;
1154 break;
1155 case 'F': /* CPL */
1156 count = set[0] ? args[0] : 1;
1157 if (terminal->row - count >= terminal->margin_top)
1158 terminal->row -= count;
1159 else
1160 terminal->row = terminal->margin_top;
1161 terminal->column = 0;
1162 break;
1163 case 'G': /* CHA */
1164 y = set[0] ? args[0] : 1;
1165 y = y <= 0 ? 1 : y > terminal->width ? terminal->width : y;
1166
1167 terminal->column = y - 1;
1168 break;
1169 case 'f': /* HVP */
1170 case 'H': /* CUP */
1171 x = (set[1] ? args[1] : 1) - 1;
1172 x = x < 0 ? 0 :
1173 (x >= terminal->width ? terminal->width - 1 : x);
1174
1175 y = (set[0] ? args[0] : 1) - 1;
1176 if (terminal->origin_mode) {
1177 y += terminal->margin_top;
1178 y = y < terminal->margin_top ? terminal->margin_top :
1179 (y > terminal->margin_bottom ? terminal->margin_bottom : y);
1180 } else {
1181 y = y < 0 ? 0 :
1182 (y >= terminal->height ? terminal->height - 1 : y);
1183 }
1184
1185 terminal->row = y;
1186 terminal->column = x;
1187 break;
1188 case 'I': /* CHT */
1189 count = set[0] ? args[0] : 1;
1190 if (count == 0) count = 1;
1191 while (count > 0 && terminal->column < terminal->width) {
1192 if (terminal->tab_ruler[terminal->column]) count--;
1193 terminal->column++;
1194 }
1195 terminal->column--;
1196 break;
1197 case 'J': /* ED */
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001198 row = terminal_get_row(terminal, terminal->row);
Callum Lowcay30eeae52011-01-07 19:46:55 +00001199 attr_row = terminal_get_attr_row(terminal, terminal->row);
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001200 if (!set[0] || args[0] == 0 || args[0] > 2) {
1201 memset(&row[terminal->column],
1202 0, (terminal->width - terminal->column) * sizeof(union utf8_char));
1203 attr_init(&attr_row[terminal->column],
1204 terminal->curr_attr, terminal->width - terminal->column);
1205 for (i = terminal->row + 1; i < terminal->height; i++) {
1206 memset(terminal_get_row(terminal, i),
1207 0, terminal->data_pitch);
1208 attr_init(terminal_get_attr_row(terminal, i),
1209 terminal->curr_attr, terminal->width);
1210 }
1211 } else if (args[0] == 1) {
1212 memset(row, 0, (terminal->column+1) * sizeof(union utf8_char));
1213 attr_init(attr_row, terminal->curr_attr, terminal->column+1);
1214 for (i = 0; i < terminal->row; i++) {
1215 memset(terminal_get_row(terminal, i),
1216 0, terminal->data_pitch);
1217 attr_init(terminal_get_attr_row(terminal, i),
1218 terminal->curr_attr, terminal->width);
1219 }
1220 } else if (args[0] == 2) {
1221 for (i = 0; i < terminal->height; i++) {
1222 memset(terminal_get_row(terminal, i),
1223 0, terminal->data_pitch);
1224 attr_init(terminal_get_attr_row(terminal, i),
1225 terminal->curr_attr, terminal->width);
1226 }
Callum Lowcay30eeae52011-01-07 19:46:55 +00001227 }
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001228 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001229 case 'K': /* EL */
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001230 row = terminal_get_row(terminal, terminal->row);
Callum Lowcay30eeae52011-01-07 19:46:55 +00001231 attr_row = terminal_get_attr_row(terminal, terminal->row);
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001232 if (!set[0] || args[0] == 0 || args[0] > 2) {
1233 memset(&row[terminal->column], 0,
1234 (terminal->width - terminal->column) * sizeof(union utf8_char));
1235 attr_init(&attr_row[terminal->column], terminal->curr_attr,
1236 terminal->width - terminal->column);
1237 } else if (args[0] == 1) {
1238 memset(row, 0, (terminal->column+1) * sizeof(union utf8_char));
1239 attr_init(attr_row, terminal->curr_attr, terminal->column+1);
1240 } else if (args[0] == 2) {
1241 memset(row, 0, terminal->data_pitch);
1242 attr_init(attr_row, terminal->curr_attr, terminal->width);
1243 }
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001244 break;
Callum Lowcay69e96582011-01-07 19:47:00 +00001245 case 'L': /* IL */
1246 count = set[0] ? args[0] : 1;
1247 if (count == 0) count = 1;
1248 if (terminal->row >= terminal->margin_top &&
1249 terminal->row < terminal->margin_bottom)
1250 {
1251 top = terminal->margin_top;
1252 terminal->margin_top = terminal->row;
1253 terminal_scroll(terminal, 0 - count);
1254 terminal->margin_top = top;
1255 } else if (terminal->row == terminal->margin_bottom) {
1256 memset(terminal_get_row(terminal, terminal->row),
1257 0, terminal->data_pitch);
1258 attr_init(terminal_get_attr_row(terminal, terminal->row),
1259 terminal->curr_attr, terminal->width);
1260 }
1261 break;
1262 case 'M': /* DL */
1263 count = set[0] ? args[0] : 1;
1264 if (count == 0) count = 1;
1265 if (terminal->row >= terminal->margin_top &&
1266 terminal->row < terminal->margin_bottom)
1267 {
1268 top = terminal->margin_top;
1269 terminal->margin_top = terminal->row;
1270 terminal_scroll(terminal, count);
1271 terminal->margin_top = top;
1272 } else if (terminal->row == terminal->margin_bottom) {
1273 memset(terminal_get_row(terminal, terminal->row),
1274 0, terminal->data_pitch);
1275 }
1276 break;
1277 case 'P': /* DCH */
1278 count = set[0] ? args[0] : 1;
1279 if (count == 0) count = 1;
1280 terminal_shift_line(terminal, 0 - count);
1281 break;
Callum Lowcaybbeac602011-01-07 19:46:58 +00001282 case 'S': /* SU */
1283 terminal_scroll(terminal, set[0] ? args[0] : 1);
1284 break;
1285 case 'T': /* SD */
1286 terminal_scroll(terminal, 0 - (set[0] ? args[0] : 1));
1287 break;
Callum Lowcay69e96582011-01-07 19:47:00 +00001288 case 'X': /* ECH */
1289 count = set[0] ? args[0] : 1;
1290 if (count == 0) count = 1;
1291 if ((terminal->column + count) > terminal->width)
1292 count = terminal->width - terminal->column;
1293 row = terminal_get_row(terminal, terminal->row);
1294 attr_row = terminal_get_attr_row(terminal, terminal->row);
1295 memset(&row[terminal->column], 0, count * sizeof(union utf8_char));
1296 attr_init(&attr_row[terminal->column], terminal->curr_attr, count);
1297 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001298 case 'Z': /* CBT */
1299 count = set[0] ? args[0] : 1;
1300 if (count == 0) count = 1;
1301 while (count > 0 && terminal->column >= 0) {
1302 if (terminal->tab_ruler[terminal->column]) count--;
1303 terminal->column--;
1304 }
1305 terminal->column++;
1306 break;
1307 case '`': /* HPA */
1308 y = set[0] ? args[0] : 1;
1309 y = y <= 0 ? 1 : y > terminal->width ? terminal->width : y;
1310
1311 terminal->column = y - 1;
1312 break;
1313 case 'b': /* REP */
1314 count = set[0] ? args[0] : 1;
1315 if (count == 0) count = 1;
1316 if (terminal->last_char.byte[0])
1317 for (i = 0; i < count; i++)
1318 handle_char(terminal, terminal->last_char);
1319 terminal->last_char.byte[0] = 0;
1320 break;
1321 case 'c': /* Primary DA */
Callum Lowcay69e96582011-01-07 19:47:00 +00001322 write(terminal->master, "\e[?6c", 5);
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001323 break;
1324 case 'd': /* VPA */
1325 x = set[0] ? args[0] : 1;
1326 x = x <= 0 ? 1 : x > terminal->height ? terminal->height : x;
1327
1328 terminal->row = x - 1;
1329 break;
1330 case 'g': /* TBC */
1331 if (!set[0] || args[0] == 0) {
1332 terminal->tab_ruler[terminal->column] = 0;
1333 } else if (args[0] == 3) {
1334 memset(terminal->tab_ruler, 0, terminal->width);
1335 }
1336 break;
Callum Lowcaybbeac602011-01-07 19:46:58 +00001337 case 'h': /* SM */
1338 for(i = 0; i < 10 && set[i]; i++) {
1339 handle_term_parameter(terminal, args[i], 1);
1340 }
1341 break;
1342 case 'l': /* RM */
1343 for(i = 0; i < 10 && set[i]; i++) {
1344 handle_term_parameter(terminal, args[i], 0);
1345 }
1346 break;
Callum Lowcay30eeae52011-01-07 19:46:55 +00001347 case 'm': /* SGR */
Callum Lowcay30eeae52011-01-07 19:46:55 +00001348 for(i = 0; i < 10; i++) {
Callum Lowcay81179db2011-01-10 12:14:01 +13001349 if (i <= 7 && set[i] && set[i + 1] &&
1350 set[i + 2] && args[i + 1] == 5)
1351 {
1352 if (args[i] == 38) {
1353 handle_sgr(terminal, args[i + 2] + 256);
1354 break;
1355 } else if (args[i] == 48) {
1356 handle_sgr(terminal, args[i + 2] + 512);
1357 break;
1358 }
1359 }
Callum Lowcay30eeae52011-01-07 19:46:55 +00001360 if(set[i]) {
1361 handle_sgr(terminal, args[i]);
1362 } else if(i == 0) {
1363 handle_sgr(terminal, 0);
1364 break;
1365 } else {
1366 break;
1367 }
1368 }
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001369 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001370 case 'n': /* DSR */
1371 i = set[0] ? args[0] : 0;
1372 if (i == 0 || i == 5) {
1373 write(terminal->master, "\e[0n", 4);
1374 } else if (i == 6) {
1375 snprintf(response, MAX_RESPONSE, "\e[%d;%dR",
1376 terminal->origin_mode ?
1377 terminal->row+terminal->margin_top : terminal->row+1,
1378 terminal->column+1);
1379 write(terminal->master, response, strlen(response));
1380 }
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001381 break;
Callum Lowcaybbeac602011-01-07 19:46:58 +00001382 case 'r':
1383 if(!set[0]) {
1384 terminal->margin_top = 0;
1385 terminal->margin_bottom = terminal->height-1;
1386 terminal->row = 0;
1387 terminal->column = 0;
1388 } else {
1389 top = (set[0] ? args[0] : 1) - 1;
1390 top = top < 0 ? 0 :
1391 (top >= terminal->height ? terminal->height - 1 : top);
1392 bottom = (set[1] ? args[1] : 1) - 1;
1393 bottom = bottom < 0 ? 0 :
1394 (bottom >= terminal->height ? terminal->height - 1 : bottom);
1395 if(bottom > top) {
1396 terminal->margin_top = top;
1397 terminal->margin_bottom = bottom;
1398 } else {
1399 terminal->margin_top = 0;
1400 terminal->margin_bottom = terminal->height-1;
1401 }
1402 if(terminal->origin_mode)
1403 terminal->row = terminal->margin_top;
1404 else
1405 terminal->row = 0;
1406 terminal->column = 0;
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001407 }
1408 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001409 case 's':
1410 terminal->saved_row = terminal->row;
1411 terminal->saved_column = terminal->column;
1412 break;
Callum Lowcayef57a9b2011-01-14 20:46:23 +13001413 case 't': /* windowOps */
1414 if (!set[0]) break;
1415 switch (args[0]) {
1416 case 4: /* resize px */
1417 if (set[1] && set[2]) {
1418 window_set_child_size(terminal->window,
1419 args[2], args[1]);
1420 resize_handler(terminal->window,
1421 args[2], args[1], terminal);
1422 }
1423 break;
1424 case 8: /* resize ch */
1425 if (set[1] && set[2]) {
1426 terminal_resize(terminal, args[2], args[1]);
1427 }
1428 break;
1429 case 13: /* report position */
1430 window_get_child_allocation(terminal->window, &allocation);
1431 snprintf(response, MAX_RESPONSE, "\e[3;%d;%dt",
1432 allocation.x, allocation.y);
1433 write(terminal->master, response, strlen(response));
1434 break;
1435 case 14: /* report px */
1436 window_get_child_allocation(terminal->window, &allocation);
1437 snprintf(response, MAX_RESPONSE, "\e[4;%d;%dt",
1438 allocation.height, allocation.width);
1439 write(terminal->master, response, strlen(response));
1440 break;
1441 case 18: /* report ch */
1442 snprintf(response, MAX_RESPONSE, "\e[9;%d;%dt",
1443 terminal->height, terminal->width);
1444 write(terminal->master, response, strlen(response));
1445 break;
1446 case 21: /* report title */
1447 snprintf(response, MAX_RESPONSE, "\e]l%s\e\\",
1448 window_get_title(terminal->window));
1449 write(terminal->master, response, strlen(response));
1450 break;
1451 default:
1452 if (args[0] >= 24)
1453 terminal_resize(terminal, terminal->width, args[0]);
1454 else
1455 fprintf(stderr, "Unimplemented windowOp %d\n", args[0]);
1456 break;
1457 }
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001458 case 'u':
1459 terminal->row = terminal->saved_row;
1460 terminal->column = terminal->saved_column;
1461 break;
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001462 default:
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001463 fprintf(stderr, "Unknown CSI escape: %c\n", *p);
Kristian Høgsbergdbd54642008-12-08 22:22:25 -05001464 break;
1465 }
Kristian Høgsberg17809b12008-12-08 12:20:40 -05001466}
1467
1468static void
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001469handle_non_csi_escape(struct terminal *terminal, char code)
1470{
Callum Lowcaybbeac602011-01-07 19:46:58 +00001471 switch(code) {
1472 case 'M': /* RI */
1473 terminal->row -= 1;
1474 if(terminal->row < terminal->margin_top) {
1475 terminal->row = terminal->margin_top;
1476 terminal_scroll(terminal, -1);
1477 }
1478 break;
1479 case 'E': /* NEL */
1480 terminal->column = 0;
1481 // fallthrough
1482 case 'D': /* IND */
1483 terminal->row += 1;
1484 if(terminal->row > terminal->margin_bottom) {
1485 terminal->row = terminal->margin_bottom;
1486 terminal_scroll(terminal, +1);
1487 }
1488 break;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001489 case 'c': /* RIS */
1490 terminal_init(terminal);
1491 break;
1492 case 'H': /* HTS */
1493 terminal->tab_ruler[terminal->column] = 1;
1494 break;
1495 case '7': /* DECSC */
1496 terminal->saved_row = terminal->row;
1497 terminal->saved_column = terminal->column;
1498 terminal->saved_attr = terminal->curr_attr;
1499 terminal->saved_origin_mode = terminal->origin_mode;
Callum Lowcay256e72f2011-01-07 19:47:01 +00001500 terminal->saved_cs = terminal->cs;
1501 terminal->saved_g0 = terminal->g0;
1502 terminal->saved_g1 = terminal->g1;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001503 break;
1504 case '8': /* DECRC */
1505 terminal->row = terminal->saved_row;
1506 terminal->column = terminal->saved_column;
1507 terminal->curr_attr = terminal->saved_attr;
1508 terminal->origin_mode = terminal->saved_origin_mode;
Callum Lowcay256e72f2011-01-07 19:47:01 +00001509 terminal->cs = terminal->saved_cs;
1510 terminal->g0 = terminal->saved_g0;
1511 terminal->g1 = terminal->saved_g1;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001512 break;
Callum Lowcay7e08e902011-01-07 19:47:02 +00001513 case '=': /* DECPAM */
1514 terminal->key_mode = KM_APPLICATION;
1515 break;
1516 case '>': /* DECPNM */
1517 terminal->key_mode = KM_NORMAL;
1518 break;
Callum Lowcaybbeac602011-01-07 19:46:58 +00001519 default:
1520 fprintf(stderr, "Unknown escape code: %c\n", code);
1521 break;
1522 }
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001523}
1524
1525static void
1526handle_special_escape(struct terminal *terminal, char special, char code)
1527{
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001528 int i, numChars;
1529
1530 if (special == '#') {
1531 switch(code) {
1532 case '8':
1533 /* fill with 'E', no cheap way to do this */
1534 memset(terminal->data, 0, terminal->data_pitch * terminal->height);
1535 numChars = terminal->width * terminal->height;
1536 for(i = 0; i < numChars; i++) {
1537 terminal->data[i].byte[0] = 'E';
1538 }
1539 break;
1540 default:
1541 fprintf(stderr, "Unknown HASH escape #%c\n", code);
1542 break;
1543 }
Callum Lowcay256e72f2011-01-07 19:47:01 +00001544 } else if (special == '(' || special == ')') {
1545 switch(code) {
1546 case '0':
1547 if (special == '(')
1548 terminal->g0 = CS_SPECIAL;
1549 else
1550 terminal->g1 = CS_SPECIAL;
1551 break;
1552 case 'A':
1553 if (special == '(')
1554 terminal->g0 = CS_UK;
1555 else
1556 terminal->g1 = CS_UK;
1557 break;
1558 case 'B':
1559 if (special == '(')
1560 terminal->g0 = CS_US;
1561 else
1562 terminal->g1 = CS_US;
1563 break;
1564 default:
1565 fprintf(stderr, "Unknown character set %c\n", code);
1566 break;
1567 }
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001568 } else {
1569 fprintf(stderr, "Unknown special escape %c%c\n", special, code);
1570 }
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001571}
1572
1573static void
Callum Lowcay30eeae52011-01-07 19:46:55 +00001574handle_sgr(struct terminal *terminal, int code)
1575{
1576 switch(code) {
1577 case 0:
1578 terminal->curr_attr = terminal->color_scheme->default_attr;
1579 break;
1580 case 1:
1581 terminal->curr_attr.a |= ATTRMASK_BOLD;
1582 if (terminal->curr_attr.fg < 8)
1583 terminal->curr_attr.fg += 8;
1584 break;
1585 case 4:
1586 terminal->curr_attr.a |= ATTRMASK_UNDERLINE;
1587 break;
1588 case 5:
1589 terminal->curr_attr.a |= ATTRMASK_BLINK;
1590 break;
Callum Lowcay81179db2011-01-10 12:14:01 +13001591 case 8:
1592 terminal->curr_attr.a |= ATTRMASK_CONCEALED;
1593 break;
Callum Lowcay30eeae52011-01-07 19:46:55 +00001594 case 2:
1595 case 21:
1596 case 22:
1597 terminal->curr_attr.a &= ~ATTRMASK_BOLD;
1598 if (terminal->curr_attr.fg < 16 && terminal->curr_attr.fg >= 8)
1599 terminal->curr_attr.fg -= 8;
1600 break;
1601 case 24:
1602 terminal->curr_attr.a &= ~ATTRMASK_UNDERLINE;
1603 break;
1604 case 25:
1605 terminal->curr_attr.a &= ~ATTRMASK_BLINK;
1606 break;
1607 case 7:
1608 case 26:
1609 terminal->curr_attr.a |= ATTRMASK_INVERSE;
1610 break;
1611 case 27:
1612 terminal->curr_attr.a &= ~ATTRMASK_INVERSE;
1613 break;
Callum Lowcay81179db2011-01-10 12:14:01 +13001614 case 28:
1615 terminal->curr_attr.a &= ~ATTRMASK_CONCEALED;
1616 break;
Callum Lowcay30eeae52011-01-07 19:46:55 +00001617 case 39:
1618 terminal->curr_attr.fg = terminal->color_scheme->default_attr.fg;
1619 break;
1620 case 49:
1621 terminal->curr_attr.bg = terminal->color_scheme->default_attr.bg;
1622 break;
1623 default:
1624 if(code >= 30 && code <= 37) {
1625 terminal->curr_attr.fg = code - 30;
1626 if (terminal->curr_attr.a & ATTRMASK_BOLD)
1627 terminal->curr_attr.fg += 8;
1628 } else if(code >= 40 && code <= 47) {
1629 terminal->curr_attr.bg = code - 40;
Callum Lowcay81179db2011-01-10 12:14:01 +13001630 } else if (code >= 90 && code <= 97) {
1631 terminal->curr_attr.fg = code - 90 + 8;
1632 } else if (code >= 100 && code <= 107) {
1633 terminal->curr_attr.bg = code - 100 + 8;
Callum Lowcay30eeae52011-01-07 19:46:55 +00001634 } else if(code >= 256 && code < 512) {
1635 terminal->curr_attr.fg = code - 256;
1636 } else if(code >= 512 && code < 768) {
1637 terminal->curr_attr.bg = code - 512;
1638 } else {
1639 fprintf(stderr, "Unknown SGR code: %d\n", code);
1640 }
1641 break;
1642 }
1643}
1644
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001645/* Returns 1 if c was special, otherwise 0 */
1646static int
1647handle_special_char(struct terminal *terminal, char c)
1648{
1649 union utf8_char *row;
1650 struct attr *attr_row;
1651
1652 row = terminal_get_row(terminal, terminal->row);
1653 attr_row = terminal_get_attr_row(terminal, terminal->row);
1654
1655 switch(c) {
1656 case '\r':
1657 terminal->column = 0;
1658 break;
1659 case '\n':
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001660 if (terminal->mode & MODE_LF_NEWLINE) {
1661 terminal->column = 0;
1662 }
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001663 /* fallthrough */
1664 case '\v':
1665 case '\f':
Callum Lowcaybbeac602011-01-07 19:46:58 +00001666 terminal->row++;
1667 if(terminal->row > terminal->margin_bottom) {
1668 terminal->row = terminal->margin_bottom;
1669 terminal_scroll(terminal, +1);
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001670 }
1671
1672 break;
1673 case '\t':
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001674 while (terminal->column < terminal->width) {
1675 if (terminal->tab_ruler[terminal->column]) break;
Callum Lowcay69e96582011-01-07 19:47:00 +00001676 if (terminal->mode & MODE_IRM)
1677 terminal_shift_line(terminal, +1);
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001678 row[terminal->column].byte[0] = ' ';
1679 row[terminal->column].byte[1] = '\0';
1680 attr_row[terminal->column] = terminal->curr_attr;
1681 terminal->column++;
1682 }
1683 if (terminal->column >= terminal->width) {
1684 terminal->column = terminal->width - 1;
1685 }
1686
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001687 break;
1688 case '\b':
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001689 if (terminal->column >= terminal->width) {
1690 terminal->column = terminal->width - 2;
1691 } else if (terminal->column > 0) {
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001692 terminal->column--;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001693 } else if (terminal->mode & MODE_AUTOWRAP) {
1694 terminal->column = terminal->width - 1;
1695 terminal->row -= 1;
1696 if (terminal->row < terminal->margin_top) {
1697 terminal->row = terminal->margin_top;
1698 terminal_scroll(terminal, -1);
1699 }
1700 }
1701
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001702 break;
1703 case '\a':
1704 /* Bell */
1705 break;
Callum Lowcay256e72f2011-01-07 19:47:01 +00001706 case '\x0E': /* SO */
1707 terminal->cs = terminal->g1;
1708 break;
1709 case '\x0F': /* SI */
1710 terminal->cs = terminal->g0;
1711 break;
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001712 default:
1713 return 0;
1714 }
1715
1716 return 1;
1717}
1718
1719static void
1720handle_char(struct terminal *terminal, union utf8_char utf8)
1721{
1722 union utf8_char *row;
1723 struct attr *attr_row;
1724
1725 if (handle_special_char(terminal, utf8.byte[0])) return;
Callum Lowcay256e72f2011-01-07 19:47:01 +00001726
1727 apply_char_set(terminal->cs, &utf8);
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001728
1729 /* There are a whole lot of non-characters, control codes,
1730 * and formatting codes that should probably be ignored,
1731 * for example: */
1732 if (strncmp((char*) utf8.byte, "\xEF\xBB\xBF", 3) == 0) {
1733 /* BOM, ignore */
1734 return;
1735 }
1736
1737 /* Some of these non-characters should be translated, e.g.: */
1738 if (utf8.byte[0] < 32) {
1739 utf8.byte[0] = utf8.byte[0] + 64;
1740 }
1741
1742 /* handle right margin effects */
1743 if (terminal->column >= terminal->width) {
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001744 if (terminal->mode & MODE_AUTOWRAP) {
1745 terminal->column = 0;
1746 terminal->row += 1;
1747 if (terminal->row > terminal->margin_bottom) {
1748 terminal->row = terminal->margin_bottom;
1749 terminal_scroll(terminal, +1);
1750 }
1751 } else {
1752 terminal->column--;
1753 }
1754 }
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001755
1756 row = terminal_get_row(terminal, terminal->row);
1757 attr_row = terminal_get_attr_row(terminal, terminal->row);
1758
Callum Lowcay69e96582011-01-07 19:47:00 +00001759 if (terminal->mode & MODE_IRM)
1760 terminal_shift_line(terminal, +1);
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001761 row[terminal->column] = utf8;
1762 attr_row[terminal->column++] = terminal->curr_attr;
1763
1764 if (utf8.ch != terminal->last_char.ch)
1765 terminal->last_char = utf8;
1766}
1767
Callum Lowcay30eeae52011-01-07 19:46:55 +00001768static void
Callum Lowcay67a201d2011-01-12 19:23:41 +13001769escape_append_utf8(struct terminal *terminal, union utf8_char utf8)
1770{
1771 int len, i;
1772
1773 if ((utf8.byte[0] & 0x80) == 0x00) len = 1;
1774 else if ((utf8.byte[0] & 0xE0) == 0xC0) len = 2;
1775 else if ((utf8.byte[0] & 0xF0) == 0xE0) len = 3;
1776 else if ((utf8.byte[0] & 0xF8) == 0xF0) len = 4;
1777 else len = 1; /* Invalid, cannot happen */
1778
1779 if (terminal->escape_length + len <= MAX_ESCAPE) {
1780 for (i = 0; i < len; i++)
1781 terminal->escape[terminal->escape_length + i] = utf8.byte[i];
1782 terminal->escape_length += len;
1783 } else if (terminal->escape_length < MAX_ESCAPE) {
1784 terminal->escape[terminal->escape_length++] = 0;
1785 }
1786}
1787
1788static void
Kristian Høgsberg269d6e32008-12-07 23:17:31 -05001789terminal_data(struct terminal *terminal, const char *data, size_t length)
1790{
1791 int i;
Callum Lowcay15bdc5d2011-01-07 19:46:54 +00001792 union utf8_char utf8;
1793 enum utf8_state parser_state;
Kristian Høgsberg269d6e32008-12-07 23:17:31 -05001794
1795 for (i = 0; i < length; i++) {
Callum Lowcay15bdc5d2011-01-07 19:46:54 +00001796 parser_state =
1797 utf8_next_char(&terminal->state_machine, data[i]);
1798 switch(parser_state) {
1799 case utf8state_accept:
1800 utf8.ch = terminal->state_machine.s.ch;
1801 break;
1802 case utf8state_reject:
1803 /* the unicode replacement character */
1804 utf8.byte[0] = 0xEF;
1805 utf8.byte[1] = 0xBF;
1806 utf8.byte[2] = 0xBD;
1807 utf8.byte[3] = 0x00;
1808 break;
1809 default:
1810 continue;
1811 }
1812
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001813 /* assume escape codes never use non-ASCII characters */
Callum Lowcay67a201d2011-01-12 19:23:41 +13001814 switch (terminal->state) {
1815 case escape_state_escape:
1816 escape_append_utf8(terminal, utf8);
1817 switch (utf8.byte[0]) {
1818 case 'P': /* DCS */
1819 terminal->state = escape_state_dcs;
1820 break;
1821 case '[': /* CSI */
1822 terminal->state = escape_state_csi;
1823 break;
1824 case ']': /* OSC */
1825 terminal->state = escape_state_osc;
1826 break;
1827 case '#':
1828 case '(':
1829 case ')': /* special */
1830 terminal->state = escape_state_special;
1831 break;
1832 case '^': /* PM (not implemented) */
1833 case '_': /* APC (not implemented) */
1834 terminal->state = escape_state_ignore;
1835 break;
1836 default:
1837 terminal->state = escape_state_normal;
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001838 handle_non_csi_escape(terminal, utf8.byte[0]);
Callum Lowcay67a201d2011-01-12 19:23:41 +13001839 break;
Kristian Høgsberg17809b12008-12-08 12:20:40 -05001840 }
Callum Lowcay67a201d2011-01-12 19:23:41 +13001841 continue;
1842 case escape_state_csi:
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001843 if (handle_special_char(terminal, utf8.byte[0]) != 0) {
1844 /* do nothing */
1845 } else if (utf8.byte[0] == '?') {
Callum Lowcay67a201d2011-01-12 19:23:41 +13001846 terminal->escape_flags |= ESC_FLAG_WHAT;
1847 } else if (utf8.byte[0] == '>') {
1848 terminal->escape_flags |= ESC_FLAG_GT;
1849 } else if (utf8.byte[0] == '!') {
1850 terminal->escape_flags |= ESC_FLAG_BANG;
1851 } else if (utf8.byte[0] == '$') {
1852 terminal->escape_flags |= ESC_FLAG_CASH;
1853 } else if (utf8.byte[0] == '\'') {
1854 terminal->escape_flags |= ESC_FLAG_SQUOTE;
1855 } else if (utf8.byte[0] == '"') {
1856 terminal->escape_flags |= ESC_FLAG_DQUOTE;
1857 } else if (utf8.byte[0] == ' ') {
1858 terminal->escape_flags |= ESC_FLAG_SPACE;
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001859 } else {
Callum Lowcay67a201d2011-01-12 19:23:41 +13001860 escape_append_utf8(terminal, utf8);
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001861 if (terminal->escape_length >= MAX_ESCAPE)
Callum Lowcay67a201d2011-01-12 19:23:41 +13001862 terminal->state = escape_state_normal;
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001863 }
1864
1865 if (isalpha(utf8.byte[0]) || utf8.byte[0] == '@' ||
1866 utf8.byte[0] == '`')
1867 {
Callum Lowcay67a201d2011-01-12 19:23:41 +13001868 terminal->state = escape_state_normal;
Kristian Høgsberg17809b12008-12-08 12:20:40 -05001869 handle_escape(terminal);
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001870 } else {
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001871 }
Callum Lowcay67a201d2011-01-12 19:23:41 +13001872 continue;
1873 case escape_state_inner_escape:
1874 if (utf8.byte[0] == '\\') {
1875 terminal->state = escape_state_normal;
1876 if (terminal->outer_state == escape_state_dcs) {
1877 handle_dcs(terminal);
1878 } else if (terminal->outer_state == escape_state_osc) {
1879 handle_osc(terminal);
1880 }
1881 } else if (utf8.byte[0] == '\e') {
1882 terminal->state = terminal->outer_state;
1883 escape_append_utf8(terminal, utf8);
1884 if (terminal->escape_length >= MAX_ESCAPE)
1885 terminal->state = escape_state_normal;
1886 } else {
1887 terminal->state = terminal->outer_state;
1888 if (terminal->escape_length < MAX_ESCAPE)
1889 terminal->escape[terminal->escape_length++] = '\e';
1890 escape_append_utf8(terminal, utf8);
1891 if (terminal->escape_length >= MAX_ESCAPE)
1892 terminal->state = escape_state_normal;
1893 }
1894 continue;
1895 case escape_state_dcs:
1896 case escape_state_osc:
1897 case escape_state_ignore:
1898 if (utf8.byte[0] == '\e') {
1899 terminal->outer_state = terminal->state;
1900 terminal->state = escape_state_inner_escape;
1901 } else if (utf8.byte[0] == '\a' && terminal->state == escape_state_osc) {
1902 terminal->state = escape_state_normal;
1903 handle_osc(terminal);
1904 } else {
1905 escape_append_utf8(terminal, utf8);
1906 if (terminal->escape_length >= MAX_ESCAPE)
1907 terminal->state = escape_state_normal;
1908 }
1909 continue;
1910 case escape_state_special:
1911 escape_append_utf8(terminal, utf8);
1912 terminal->state = escape_state_normal;
1913 if (isdigit(utf8.byte[0]) || isalpha(utf8.byte[0])) {
1914 handle_special_escape(terminal, terminal->escape[1],
1915 utf8.byte[0]);
1916 }
1917 continue;
1918 default:
1919 break;
Kristian Høgsbergf04e8382008-12-08 00:07:49 -05001920 }
1921
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001922 /* this is valid, because ASCII characters are never used to
1923 * introduce a multibyte sequence in UTF-8 */
1924 if (utf8.byte[0] == '\e') {
Callum Lowcay67a201d2011-01-12 19:23:41 +13001925 terminal->state = escape_state_escape;
1926 terminal->outer_state = escape_state_normal;
Kristian Høgsberg17809b12008-12-08 12:20:40 -05001927 terminal->escape[0] = '\e';
1928 terminal->escape_length = 1;
Callum Lowcay67a201d2011-01-12 19:23:41 +13001929 terminal->escape_flags = 0;
Callum Lowcayb8609ad2011-01-07 19:46:57 +00001930 } else {
1931 handle_char(terminal, utf8);
1932 } /* if */
1933 } /* for */
Kristian Høgsberg721f09f2008-12-08 11:13:26 -05001934
Kristian Høgsberg80d746f2010-06-14 23:52:50 -04001935 window_schedule_redraw(terminal->window);
Kristian Høgsberg6e83d582008-12-08 00:01:36 -05001936}
1937
1938static void
Kristian Høgsberg94adf6c2010-06-25 16:50:05 -04001939key_handler(struct window *window, uint32_t key, uint32_t sym,
Kristian Høgsberg55444912009-02-21 14:31:09 -05001940 uint32_t state, uint32_t modifiers, void *data)
Kristian Høgsberg6e83d582008-12-08 00:01:36 -05001941{
1942 struct terminal *terminal = data;
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001943 char ch[MAX_RESPONSE];
Kristian Høgsberg94adf6c2010-06-25 16:50:05 -04001944 int len = 0;
Kristian Høgsberg6e83d582008-12-08 00:01:36 -05001945
Kristian Høgsberg94adf6c2010-06-25 16:50:05 -04001946 switch (sym) {
1947 case XK_F11:
Kristian Høgsberg0395f302008-12-22 12:14:50 -05001948 if (!state)
1949 break;
1950 terminal->fullscreen ^= 1;
1951 window_set_fullscreen(window, terminal->fullscreen);
Kristian Høgsberg80d746f2010-06-14 23:52:50 -04001952 window_schedule_redraw(terminal->window);
Kristian Høgsberg0395f302008-12-22 12:14:50 -05001953 break;
Kristian Høgsberg94adf6c2010-06-25 16:50:05 -04001954
Kristian Høgsberg94adf6c2010-06-25 16:50:05 -04001955 case XK_BackSpace:
1956 case XK_Tab:
1957 case XK_Linefeed:
1958 case XK_Clear:
Kristian Høgsberg94adf6c2010-06-25 16:50:05 -04001959 case XK_Pause:
1960 case XK_Scroll_Lock:
1961 case XK_Sys_Req:
1962 case XK_Escape:
1963 ch[len++] = sym & 0x7f;
1964 break;
1965
Callum Lowcay8e57dd52011-01-07 19:46:59 +00001966 case XK_Return:
1967 if (terminal->mode & MODE_LF_NEWLINE) {
1968 ch[len++] = 0x0D;
1969 ch[len++] = 0x0A;
1970 } else {
1971 ch[len++] = 0x0D;
1972 }
1973 break;
1974
Kristian Høgsberg94adf6c2010-06-25 16:50:05 -04001975 case XK_Shift_L:
1976 case XK_Shift_R:
1977 case XK_Control_L:
1978 case XK_Control_R:
1979 case XK_Alt_L:
1980 case XK_Alt_R:
1981 break;
1982
Callum Lowcay7e08e902011-01-07 19:47:02 +00001983 case XK_Insert:
1984 len = function_key_response('[', 2, modifiers, '~', ch);
1985 break;
1986 case XK_Delete:
1987 if (terminal->mode & MODE_DELETE_SENDS_DEL) {
1988 ch[len++] = '\x04';
1989 } else {
1990 len = function_key_response('[', 3, modifiers, '~', ch);
1991 }
1992 break;
1993 case XK_Page_Up:
1994 len = function_key_response('[', 5, modifiers, '~', ch);
1995 break;
1996 case XK_Page_Down:
1997 len = function_key_response('[', 6, modifiers, '~', ch);
1998 break;
1999 case XK_F1:
2000 len = function_key_response('O', 1, modifiers, 'P', ch);
2001 break;
2002 case XK_F2:
2003 len = function_key_response('O', 1, modifiers, 'Q', ch);
2004 break;
2005 case XK_F3:
2006 len = function_key_response('O', 1, modifiers, 'R', ch);
2007 break;
2008 case XK_F4:
2009 len = function_key_response('O', 1, modifiers, 'S', ch);
2010 break;
2011 case XK_F5:
2012 len = function_key_response('[', 15, modifiers, '~', ch);
2013 break;
2014 case XK_F6:
2015 len = function_key_response('[', 17, modifiers, '~', ch);
2016 break;
2017 case XK_F7:
2018 len = function_key_response('[', 18, modifiers, '~', ch);
2019 break;
2020 case XK_F8:
2021 len = function_key_response('[', 19, modifiers, '~', ch);
2022 break;
2023 case XK_F9:
2024 len = function_key_response('[', 20, modifiers, '~', ch);
2025 break;
2026 case XK_F10:
2027 len = function_key_response('[', 21, modifiers, '~', ch);
2028 break;
2029 case XK_F12:
2030 len = function_key_response('[', 24, modifiers, '~', ch);
2031 break;
Kristian Høgsberg6e83d582008-12-08 00:01:36 -05002032 default:
Callum Lowcay7e08e902011-01-07 19:47:02 +00002033 /* Handle special keys with alternate mappings */
2034 len = apply_key_map(terminal->key_mode, sym, modifiers, ch);
2035 if (len != 0) break;
2036
2037 if (modifiers & WINDOW_MODIFIER_CONTROL) {
2038 if (sym >= '3' && sym <= '7')
2039 sym = (sym & 0x1f) + 8;
2040
2041 if (!((sym >= '!' && sym <= '/') ||
2042 (sym >= '8' && sym <= '?') ||
2043 (sym >= '0' && sym <= '2'))) sym = sym & 0x1f;
2044 else if (sym == '2') sym = 0x00;
2045 else if (sym == '/') sym = 0x1F;
2046 else if (sym == '8' || sym == '?') sym = 0x7F;
2047 } else if ((terminal->mode & MODE_ALT_SENDS_ESC) &&
2048 (modifiers & WINDOW_MODIFIER_ALT))
2049 {
Kristian Høgsberg94adf6c2010-06-25 16:50:05 -04002050 ch[len++] = 0x1b;
Callum Lowcay7e08e902011-01-07 19:47:02 +00002051 } else if (modifiers & WINDOW_MODIFIER_ALT) {
2052 sym = sym | 0x80;
2053 }
2054
Kristian Høgsberg94adf6c2010-06-25 16:50:05 -04002055 if (sym < 256)
2056 ch[len++] = sym;
Kristian Høgsberg6e83d582008-12-08 00:01:36 -05002057 break;
2058 }
Kristian Høgsberg94adf6c2010-06-25 16:50:05 -04002059
2060 if (state && len > 0)
2061 write(terminal->master, ch, len);
Kristian Høgsberg6e83d582008-12-08 00:01:36 -05002062}
2063
Kristian Høgsberg3c248cc2009-02-22 23:01:35 -05002064static void
2065keyboard_focus_handler(struct window *window,
Kristian Høgsberg43788b12010-07-28 23:50:12 -04002066 struct input *device, void *data)
Kristian Høgsberg3c248cc2009-02-22 23:01:35 -05002067{
2068 struct terminal *terminal = data;
2069
2070 terminal->focused = (device != NULL);
Kristian Høgsberg80d746f2010-06-14 23:52:50 -04002071 window_schedule_redraw(terminal->window);
Kristian Høgsberg3c248cc2009-02-22 23:01:35 -05002072}
2073
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05002074static struct terminal *
Kristian Høgsberg43c28ee2009-01-26 23:42:46 -05002075terminal_create(struct display *display, int fullscreen)
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05002076{
2077 struct terminal *terminal;
Kristian Høgsberg09531622010-06-14 23:22:15 -04002078 cairo_surface_t *surface;
2079 cairo_t *cr;
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05002080
2081 terminal = malloc(sizeof *terminal);
2082 if (terminal == NULL)
2083 return terminal;
2084
Kristian Høgsberg269d6e32008-12-07 23:17:31 -05002085 memset(terminal, 0, sizeof *terminal);
Kristian Høgsberg0395f302008-12-22 12:14:50 -05002086 terminal->fullscreen = fullscreen;
Callum Lowcay30eeae52011-01-07 19:46:55 +00002087 terminal->color_scheme = &DEFAULT_COLORS;
2088 terminal_init(terminal);
Callum Lowcaybbeac602011-01-07 19:46:58 +00002089 terminal->margin_top = 0;
Callum Lowcay86653ed2011-01-07 19:47:03 +00002090 terminal->margin_bottom = -1;
Kristian Høgsberg43c28ee2009-01-26 23:42:46 -05002091 terminal->window = window_create(display, "Wayland Terminal",
Kristian Høgsberg82da52b2010-12-17 09:53:12 -05002092 500, 400);
Callum Lowcay15bdc5d2011-01-07 19:46:54 +00002093
2094 init_state_machine(&terminal->state_machine);
Callum Lowcay30eeae52011-01-07 19:46:55 +00002095 init_color_table(terminal);
Callum Lowcay15bdc5d2011-01-07 19:46:54 +00002096
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05002097 terminal->display = display;
Kristian Høgsberg1584c572008-12-08 12:59:37 -05002098 terminal->margin = 5;
Kristian Høgsberg44e3c5e2008-12-07 21:51:58 -05002099
Kristian Høgsberg0395f302008-12-22 12:14:50 -05002100 window_set_fullscreen(terminal->window, terminal->fullscreen);
Kristian Høgsbergc8c37342010-06-25 11:19:22 -04002101 window_set_user_data(terminal->window, terminal);
2102 window_set_redraw_handler(terminal->window, redraw_handler);
Kristian Høgsbergda846ca2011-01-11 10:00:52 -05002103 window_set_resize_handler(terminal->window, resize_handler);
Kristian Høgsberg94448c02008-12-30 11:03:33 -05002104
Kristian Høgsbergc8c37342010-06-25 11:19:22 -04002105 window_set_key_handler(terminal->window, key_handler);
Kristian Høgsberg3c248cc2009-02-22 23:01:35 -05002106 window_set_keyboard_focus_handler(terminal->window,
Kristian Høgsbergc8c37342010-06-25 11:19:22 -04002107 keyboard_focus_handler);
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05002108
Kristian Høgsberg09531622010-06-14 23:22:15 -04002109 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 0, 0);
2110 cr = cairo_create(surface);
Kristian Høgsberg09531622010-06-14 23:22:15 -04002111 cairo_set_font_size(cr, 14);
Kristian Høgsberg7ae6b1a2010-12-25 16:58:31 -05002112 cairo_select_font_face (cr, "mono",
2113 CAIRO_FONT_SLANT_NORMAL,
2114 CAIRO_FONT_WEIGHT_BOLD);
2115 terminal->font_bold = cairo_get_scaled_font (cr);
2116 cairo_scaled_font_reference(terminal->font_bold);
2117
2118 cairo_select_font_face (cr, "mono",
2119 CAIRO_FONT_SLANT_NORMAL,
2120 CAIRO_FONT_WEIGHT_NORMAL);
2121 terminal->font_normal = cairo_get_scaled_font (cr);
2122 cairo_scaled_font_reference(terminal->font_normal);
2123
Kristian Høgsberg09531622010-06-14 23:22:15 -04002124 cairo_font_extents(cr, &terminal->extents);
2125 cairo_destroy(cr);
2126 cairo_surface_destroy(surface);
2127
Callum Lowcaya0ee21c2011-01-07 19:46:56 +00002128 terminal_resize(terminal, 80, 24);
Kristian Høgsberg22106762008-12-08 13:50:07 -05002129 terminal_draw(terminal);
2130
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05002131 return terminal;
2132}
2133
Kristian Høgsberg269d6e32008-12-07 23:17:31 -05002134static gboolean
2135io_handler(GIOChannel *source,
2136 GIOCondition condition,
2137 gpointer data)
2138{
2139 struct terminal *terminal = data;
2140 gchar buffer[256];
2141 gsize bytes_read;
2142 GError *error = NULL;
2143
2144 g_io_channel_read_chars(source, buffer, sizeof buffer,
2145 &bytes_read, &error);
Kristian Høgsberg269d6e32008-12-07 23:17:31 -05002146
2147 terminal_data(terminal, buffer, bytes_read);
2148
Kristian Høgsberg269d6e32008-12-07 23:17:31 -05002149 return TRUE;
2150}
2151
2152static int
2153terminal_run(struct terminal *terminal, const char *path)
2154{
Kristian Høgsbergf0c7b202008-12-12 13:39:03 -05002155 int master;
Kristian Høgsberg269d6e32008-12-07 23:17:31 -05002156 pid_t pid;
2157
2158 pid = forkpty(&master, NULL, NULL, NULL);
2159 if (pid == 0) {
Callum Lowcay86653ed2011-01-07 19:47:03 +00002160 setenv("TERM", "xterm-256color", 1);
2161 setenv("COLORTERM", "xterm-256color", 1);
Kristian Høgsberg269d6e32008-12-07 23:17:31 -05002162 if (execl(path, path, NULL)) {
2163 printf("exec failed: %m\n");
2164 exit(EXIT_FAILURE);
2165 }
Kristian Høgsbergf0c7b202008-12-12 13:39:03 -05002166 } else if (pid < 0) {
2167 fprintf(stderr, "failed to fork and create pty (%m).\n");
2168 return -1;
Kristian Høgsberg269d6e32008-12-07 23:17:31 -05002169 }
2170
Kristian Høgsberg6e83d582008-12-08 00:01:36 -05002171 terminal->master = master;
Kristian Høgsberg269d6e32008-12-07 23:17:31 -05002172 terminal->channel = g_io_channel_unix_new(master);
2173 fcntl(master, F_SETFL, O_NONBLOCK);
2174 g_io_add_watch(terminal->channel, G_IO_IN,
2175 io_handler, terminal);
2176
2177 return 0;
2178}
2179
Kristian Høgsberg0395f302008-12-22 12:14:50 -05002180static const GOptionEntry option_entries[] = {
2181 { "fullscreen", 'f', 0, G_OPTION_ARG_NONE,
2182 &option_fullscreen, "Run in fullscreen mode" },
2183 { NULL }
2184};
2185
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05002186int main(int argc, char *argv[])
2187{
Kristian Høgsberg43c28ee2009-01-26 23:42:46 -05002188 struct display *d;
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05002189 struct terminal *terminal;
Kristian Høgsberg0395f302008-12-22 12:14:50 -05002190
Kristian Høgsberg7824d812010-06-08 14:59:44 -04002191 d = display_create(&argc, &argv, option_entries);
Yuval Fledele9f5e362010-11-22 21:34:19 +02002192 if (d == NULL) {
2193 fprintf(stderr, "failed to create display: %m\n");
2194 return -1;
2195 }
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05002196
Kristian Høgsberg43c28ee2009-01-26 23:42:46 -05002197 terminal = terminal_create(d, option_fullscreen);
Kristian Høgsbergf0c7b202008-12-12 13:39:03 -05002198 if (terminal_run(terminal, "/bin/bash"))
2199 exit(EXIT_FAILURE);
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05002200
Kristian Høgsberg7824d812010-06-08 14:59:44 -04002201 display_run(d);
Kristian Høgsberg0c4457f2008-12-07 19:59:11 -05002202
2203 return 0;
2204}