|
|
|
/*
|
|
|
|
* Copyright © 2008 Kristian Høgsberg
|
|
|
|
*
|
|
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
|
|
* the above copyright notice appear in all copies and that both that copyright
|
|
|
|
* notice and this permission notice appear in supporting documentation, and
|
|
|
|
* that the name of the copyright holders not be used in advertising or
|
|
|
|
* publicity pertaining to distribution of the software without specific,
|
|
|
|
* written prior permission. The copyright holders make no representations
|
|
|
|
* about the suitability of this software for any purpose. It is provided "as
|
|
|
|
* is" without express or implied warranty.
|
|
|
|
*
|
|
|
|
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
|
|
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|
|
|
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
|
|
|
* OF THIS SOFTWARE.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <fcntl.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <math.h>
|
|
|
|
#include <time.h>
|
|
|
|
#include <pty.h>
|
|
|
|
#include <ctype.h>
|
|
|
|
#include <cairo.h>
|
|
|
|
#include <glib.h>
|
|
|
|
|
|
|
|
#include <X11/keysym.h>
|
|
|
|
|
|
|
|
#include "wayland-util.h"
|
|
|
|
#include "wayland-client.h"
|
|
|
|
#include "wayland-glib.h"
|
|
|
|
|
|
|
|
#include "window.h"
|
|
|
|
|
|
|
|
static int option_fullscreen;
|
|
|
|
|
|
|
|
#define MOD_SHIFT 0x01
|
|
|
|
#define MOD_ALT 0x02
|
|
|
|
#define MOD_CTRL 0x04
|
|
|
|
|
|
|
|
#define ATTRMASK_BOLD 0x01
|
|
|
|
#define ATTRMASK_UNDERLINE 0x02
|
|
|
|
#define ATTRMASK_BLINK 0x04
|
|
|
|
#define ATTRMASK_INVERSE 0x08
|
|
|
|
|
|
|
|
/* Buffer sizes */
|
|
|
|
#define MAX_RESPONSE 11
|
|
|
|
#define MAX_ESCAPE 64
|
|
|
|
|
|
|
|
union utf8_char {
|
|
|
|
unsigned char byte[4];
|
|
|
|
uint32_t ch;
|
|
|
|
};
|
|
|
|
|
|
|
|
enum utf8_state {
|
|
|
|
utf8state_start,
|
|
|
|
utf8state_accept,
|
|
|
|
utf8state_reject,
|
|
|
|
utf8state_expect3,
|
|
|
|
utf8state_expect2,
|
|
|
|
utf8state_expect1
|
|
|
|
};
|
|
|
|
|
|
|
|
struct utf8_state_machine {
|
|
|
|
enum utf8_state state;
|
|
|
|
int len;
|
|
|
|
union utf8_char s;
|
|
|
|
};
|
|
|
|
|
|
|
|
static void
|
|
|
|
init_state_machine(struct utf8_state_machine *machine)
|
|
|
|
{
|
|
|
|
machine->state = utf8state_start;
|
|
|
|
machine->len = 0;
|
|
|
|
machine->s.ch = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static enum utf8_state
|
|
|
|
utf8_next_char(struct utf8_state_machine *machine, char c)
|
|
|
|
{
|
|
|
|
switch(machine->state) {
|
|
|
|
case utf8state_start:
|
|
|
|
case utf8state_accept:
|
|
|
|
case utf8state_reject:
|
|
|
|
machine->s.ch = 0;
|
|
|
|
machine->len = 0;
|
|
|
|
if(c == 0xC0 || c == 0xC1) {
|
|
|
|
/* overlong encoding, reject */
|
|
|
|
machine->state = utf8state_reject;
|
|
|
|
} else if((c & 0x80) == 0) {
|
|
|
|
/* single byte, accept */
|
|
|
|
machine->s.byte[machine->len++] = c;
|
|
|
|
machine->state = utf8state_accept;
|
|
|
|
} else if((c & 0xC0) == 0x80) {
|
|
|
|
/* parser out of sync, ignore byte */
|
|
|
|
machine->state = utf8state_start;
|
|
|
|
} else if((c & 0xE0) == 0xC0) {
|
|
|
|
/* start of two byte sequence */
|
|
|
|
machine->s.byte[machine->len++] = c;
|
|
|
|
machine->state = utf8state_expect1;
|
|
|
|
} else if((c & 0xF0) == 0xE0) {
|
|
|
|
/* start of three byte sequence */
|
|
|
|
machine->s.byte[machine->len++] = c;
|
|
|
|
machine->state = utf8state_expect2;
|
|
|
|
} else if((c & 0xF8) == 0xF0) {
|
|
|
|
/* start of four byte sequence */
|
|
|
|
machine->s.byte[machine->len++] = c;
|
|
|
|
machine->state = utf8state_expect3;
|
|
|
|
} else {
|
|
|
|
/* overlong encoding, reject */
|
|
|
|
machine->state = utf8state_reject;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case utf8state_expect3:
|
|
|
|
machine->s.byte[machine->len++] = c;
|
|
|
|
if((c & 0xC0) == 0x80) {
|
|
|
|
/* all good, continue */
|
|
|
|
machine->state = utf8state_expect2;
|
|
|
|
} else {
|
|
|
|
/* missing extra byte, reject */
|
|
|
|
machine->state = utf8state_reject;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case utf8state_expect2:
|
|
|
|
machine->s.byte[machine->len++] = c;
|
|
|
|
if((c & 0xC0) == 0x80) {
|
|
|
|
/* all good, continue */
|
|
|
|
machine->state = utf8state_expect1;
|
|
|
|
} else {
|
|
|
|
/* missing extra byte, reject */
|
|
|
|
machine->state = utf8state_reject;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case utf8state_expect1:
|
|
|
|
machine->s.byte[machine->len++] = c;
|
|
|
|
if((c & 0xC0) == 0x80) {
|
|
|
|
/* all good, accept */
|
|
|
|
machine->state = utf8state_accept;
|
|
|
|
} else {
|
|
|
|
/* missing extra byte, reject */
|
|
|
|
machine->state = utf8state_reject;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
machine->state = utf8state_reject;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return machine->state;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct terminal_color { double r, g, b, a; };
|
|
|
|
struct attr {
|
|
|
|
unsigned char fg, bg;
|
|
|
|
char a; /* attributes format:
|
|
|
|
* 76543210
|
|
|
|
* ilub */
|
|
|
|
char r; /* reserved */
|
|
|
|
};
|
|
|
|
struct color_scheme {
|
|
|
|
struct terminal_color palette[16];
|
|
|
|
struct terminal_color border;
|
|
|
|
struct attr default_attr;
|
|
|
|
};
|
|
|
|
|
|
|
|
static void
|
|
|
|
attr_init(struct attr *data_attr, struct attr attr, int n)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
|
|
data_attr[i] = attr;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
struct terminal {
|
|
|
|
struct window *window;
|
|
|
|
struct display *display;
|
|
|
|
union utf8_char *data;
|
|
|
|
struct attr *data_attr;
|
|
|
|
struct attr curr_attr;
|
|
|
|
char origin_mode;
|
|
|
|
union utf8_char last_char;
|
|
|
|
int margin_top, margin_bottom;
|
|
|
|
int data_pitch, attr_pitch; /* The width in bytes of a line */
|
|
|
|
int width, height, start, row, column;
|
|
|
|
int fd, master;
|
|
|
|
GIOChannel *channel;
|
|
|
|
uint32_t modifiers;
|
|
|
|
char escape[MAX_ESCAPE];
|
|
|
|
int escape_length;
|
|
|
|
int state;
|
|
|
|
int qmark_flag;
|
|
|
|
struct utf8_state_machine state_machine;
|
|
|
|
int margin;
|
|
|
|
int fullscreen;
|
|
|
|
int focused;
|
|
|
|
struct color_scheme *color_scheme;
|
|
|
|
struct terminal_color color_table[256];
|
|
|
|
cairo_font_extents_t extents;
|
|
|
|
cairo_font_face_t *font_normal, *font_bold;
|
|
|
|
};
|
|
|
|
|
|
|
|
static void
|
|
|
|
terminal_init(struct terminal *terminal)
|
|
|
|
{
|
|
|
|
terminal->curr_attr = terminal->color_scheme->default_attr;
|
|
|
|
terminal->origin_mode = 0;
|
|
|
|
|
|
|
|
terminal->row = 0;
|
|
|
|
terminal->column = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
init_color_table(struct terminal *terminal)
|
|
|
|
{
|
|
|
|
int c, r;
|
|
|
|
struct terminal_color *color_table = terminal->color_table;
|
|
|
|
|
|
|
|
for (c = 0; c < 256; c ++) {
|
|
|
|
if (c < 16) {
|
|
|
|
color_table[c] = terminal->color_scheme->palette[c];
|
|
|
|
} else if (c < 232) {
|
|
|
|
r = c - 16;
|
|
|
|
color_table[c].b = ((double)(r % 6) / 6.0); r /= 6;
|
|
|
|
color_table[c].g = ((double)(r % 6) / 6.0); r /= 6;
|
|
|
|
color_table[c].r = ((double)(r % 6) / 6.0);
|
|
|
|
color_table[c].a = 1.0;
|
|
|
|
} else {
|
|
|
|
r = (c - 232) * 10 + 8;
|
|
|
|
color_table[c].r = ((double) r) / 256.0;
|
|
|
|
color_table[c].g = color_table[c].r;
|
|
|
|
color_table[c].b = color_table[c].r;
|
|
|
|
color_table[c].a = 1.0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static union utf8_char *
|
|
|
|
terminal_get_row(struct terminal *terminal, int row)
|
|
|
|
{
|
|
|
|
int index;
|
|
|
|
|
|
|
|
index = (row + terminal->start) % terminal->height;
|
|
|
|
|
|
|
|
return &terminal->data[index * terminal->width];
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct attr*
|
|
|
|
terminal_get_attr_row(struct terminal *terminal, int row) {
|
|
|
|
int index;
|
|
|
|
|
|
|
|
index = (row + terminal->start) % terminal->height;
|
|
|
|
|
|
|
|
return &terminal->data_attr[index * terminal->width];
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct attr
|
|
|
|
terminal_get_attr(struct terminal *terminal, int row, int col) {
|
|
|
|
return terminal_get_attr_row(terminal, row)[col];
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
terminal_scroll_buffer(struct terminal *terminal, int d)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
d = d % (terminal->height + 1);
|
|
|
|
terminal->start = (terminal->start + d) % terminal->height;
|
|
|
|
if (terminal->start < 0) terminal->start = terminal->height + terminal->start;
|
|
|
|
if(d < 0) {
|
|
|
|
d = 0 - d;
|
|
|
|
for(i = 0; i < d; i++) {
|
|
|
|
memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
|
|
|
|
attr_init(terminal_get_attr_row(terminal, i),
|
|
|
|
terminal->curr_attr, terminal->width);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
for(i = terminal->height - d; i < terminal->height; i++) {
|
|
|
|
memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
|
|
|
|
attr_init(terminal_get_attr_row(terminal, i),
|
|
|
|
terminal->curr_attr, terminal->width);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
terminal_scroll_window(struct terminal *terminal, int d)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int window_height;
|
|
|
|
int from_row, to_row;
|
|
|
|
struct attr *dup_attr;
|
|
|
|
|
|
|
|
// scrolling range is inclusive
|
|
|
|
window_height = terminal->margin_bottom - terminal->margin_top + 1;
|
|
|
|
d = d % (window_height + 1);
|
|
|
|
if(d < 0) {
|
|
|
|
d = 0 - d;
|
|
|
|
to_row = terminal->margin_bottom;
|
|
|
|
from_row = terminal->margin_bottom - d;
|
|
|
|
|
|
|
|
for (i = 0; i < (window_height - d); i++) {
|
|
|
|
memcpy(terminal_get_row(terminal, to_row - i),
|
|
|
|
terminal_get_row(terminal, from_row - i),
|
|
|
|
terminal->data_pitch);
|
|
|
|
memcpy(terminal_get_attr_row(terminal, to_row - i),
|
|
|
|
terminal_get_attr_row(terminal, from_row - i),
|
|
|
|
terminal->attr_pitch);
|
|
|
|
}
|
|
|
|
dup_attr = terminal_get_attr_row(terminal, terminal->margin_top);
|
|
|
|
for (i = terminal->margin_top; i < (terminal->margin_top + d); i++) {
|
|
|
|
memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
|
|
|
|
if (i > terminal->margin_top) {
|
|
|
|
memcpy(terminal_get_attr_row(terminal, i),
|
|
|
|
dup_attr, terminal->attr_pitch);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
to_row = terminal->margin_top;
|
|
|
|
from_row = terminal->margin_top + d;
|
|
|
|
|
|
|
|
for (i = 0; i < (window_height - d); i++) {
|
|
|
|
memcpy(terminal_get_row(terminal, to_row + i),
|
|
|
|
terminal_get_row(terminal, from_row + i),
|
|
|
|
terminal->data_pitch);
|
|
|
|
memcpy(terminal_get_attr_row(terminal, to_row + i),
|
|
|
|
terminal_get_attr_row(terminal, from_row + i),
|
|
|
|
terminal->attr_pitch);
|
|
|
|
}
|
|
|
|
dup_attr = terminal_get_attr_row(terminal, terminal->margin_bottom);
|
|
|
|
for (i = terminal->margin_bottom - d + 1; i <= terminal->margin_bottom; i++) {
|
|
|
|
memset(terminal_get_row(terminal, i), 0, terminal->data_pitch);
|
|
|
|
if (i < terminal->margin_bottom) {
|
|
|
|
memcpy(terminal_get_attr_row(terminal, i),
|
|
|
|
dup_attr, terminal->attr_pitch);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
terminal_scroll(struct terminal *terminal, int d)
|
|
|
|
{
|
|
|
|
if(terminal->margin_top == 0 && terminal->margin_bottom == terminal->height - 1)
|
|
|
|
terminal_scroll_buffer(terminal, d);
|
|
|
|
else
|
|
|
|
terminal_scroll_window(terminal, d);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
terminal_resize(struct terminal *terminal, int width, int height)
|
|
|
|
{
|
|
|
|
size_t size;
|
|
|
|
union utf8_char *data;
|
|
|
|
struct attr *data_attr;
|
|
|
|
int data_pitch, attr_pitch;
|
|
|
|
int i, l, total_rows, start;
|
|
|
|
struct rectangle rectangle;
|
|
|
|
struct winsize ws;
|
|
|
|
|
|
|
|
if (terminal->width == width && terminal->height == height)
|
|
|
|
return;
|
|
|
|
|
|
|
|
data_pitch = width * sizeof(union utf8_char);
|
|
|
|
size = data_pitch * height;
|
|
|
|
data = malloc(size);
|
|
|
|
attr_pitch = width * sizeof(struct attr);
|
|
|
|
data_attr = malloc(attr_pitch * height);
|
|
|
|
memset(data, 0, size);
|
|
|
|
attr_init(data_attr, terminal->curr_attr, width * height);
|
|
|
|
if (terminal->data && terminal->data_attr) {
|
|
|
|
if (width > terminal->width)
|
|
|
|
l = terminal->width;
|
|
|
|
else
|
|
|
|
l = width;
|
|
|
|
|
|
|
|
if (terminal->height > height) {
|
|
|
|
total_rows = height;
|
|
|
|
start = terminal->height - height;
|
|
|
|
} else {
|
|
|
|
total_rows = terminal->height;
|
|
|
|
start = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < total_rows; i++) {
|
|
|
|
memcpy(&data[width * i],
|
|
|
|
terminal_get_row(terminal, i),
|
|
|
|
l * sizeof(union utf8_char));
|
|
|
|
memcpy(&data_attr[width * i],
|
|
|
|
terminal_get_attr_row(terminal, i),
|
|
|
|
l * sizeof(struct attr));
|
|
|
|
}
|
|
|
|
|
|
|
|
free(terminal->data);
|
|
|
|
free(terminal->data_attr);
|
|
|
|
}
|
|
|
|
|
|
|
|
terminal->data_pitch = data_pitch;
|
|
|
|
terminal->attr_pitch = attr_pitch;
|
|
|
|
terminal->width = width;
|
|
|
|
terminal->height = height;
|
|
|
|
if(terminal->margin_bottom >= terminal->height)
|
|
|
|
terminal->margin_bottom = terminal->height - 1;
|
|
|
|
terminal->data = data;
|
|
|
|
terminal->data_attr = data_attr;
|
|
|
|
|
|
|
|
if (terminal->row >= terminal->height)
|
|
|
|
terminal->row = terminal->height - 1;
|
|
|
|
if (terminal->column >= terminal->width)
|
|
|
|
terminal->column = terminal->width - 1;
|
|
|
|
terminal->start = 0;
|
|
|
|
|
|
|
|
if (!terminal->fullscreen) {
|
|
|
|
rectangle.width = terminal->width *
|
|
|
|
terminal->extents.max_x_advance + 2 * terminal->margin;
|
|
|
|
rectangle.height = terminal->height *
|
|
|
|
terminal->extents.height + 2 * terminal->margin;
|
|
|
|
window_set_child_size(terminal->window, &rectangle);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Update the window size */
|
|
|
|
ws.ws_row = terminal->height;
|
|
|
|
ws.ws_col = terminal->width;
|
|
|
|
window_get_child_rectangle(terminal->window, &rectangle);
|
|
|
|
ws.ws_xpixel = rectangle.width;
|
|
|
|
ws.ws_ypixel = rectangle.height;
|
|
|
|
ioctl(terminal->master, TIOCSWINSZ, &ws);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct color_scheme DEFAULT_COLORS = {
|
|
|
|
{
|
|
|
|
{0, 0, 0, 1}, /* black */
|
|
|
|
{0.66, 0, 0, 1}, /* red */
|
|
|
|
{0 , 0.66, 0, 1}, /* green */
|
|
|
|
{0.66, 0.33, 0, 1}, /* orange (nicer than muddy yellow) */
|
|
|
|
{0 , 0 , 0.66, 1}, /* blue */
|
|
|
|
{0.66, 0 , 0.66, 1}, /* magenta */
|
|
|
|
{0, 0.66, 0.66, 1}, /* cyan */
|
|
|
|
{0.66, 0.66, 0.66, 1}, /* light grey */
|
|
|
|
{0.22, 0.33, 0.33, 1}, /* dark grey */
|
|
|
|
{1, 0.33, 0.33, 1}, /* high red */
|
|
|
|
{0.33, 1, 0.33, 1}, /* high green */
|
|
|
|
{1, 1, 0.33, 1}, /* high yellow */
|
|
|
|
{0.33, 0.33, 1, 1}, /* high blue */
|
|
|
|
{1, 0.33, 1, 1}, /* high magenta */
|
|
|
|
{0.33, 1, 1, 1}, /* high cyan */
|
|
|
|
{1, 1, 1, 1} /* white */
|
|
|
|
},
|
|
|
|
{0, 0, 0, 1}, /* black border */
|
|
|
|
{7, 0, 0, } /* bg:black (0), fg:light gray (7) */
|
|
|
|
};
|
|
|
|
|
|
|
|
static void
|
|
|
|
terminal_draw_contents(struct terminal *terminal)
|
|
|
|
{
|
|
|
|
struct rectangle rectangle;
|
|
|
|
cairo_t *cr;
|
|
|
|
cairo_font_extents_t extents;
|
|
|
|
int top_margin, side_margin;
|
|
|
|
int row, col;
|
|
|
|
struct attr attr;
|
|
|
|
union utf8_char *p_row;
|
|
|
|
struct utf8_chars {
|
|
|
|
union utf8_char c;
|
|
|
|
char null;
|
|
|
|
} toShow;
|
|
|
|
int foreground, background, bold, underline;
|
|
|
|
int text_x, text_y;
|
|
|
|
cairo_surface_t *surface;
|
|
|
|
double d;
|
|
|
|
|
|
|
|
toShow.null = 0;
|
|
|
|
|
|
|
|
window_get_child_rectangle(terminal->window, &rectangle);
|
|
|
|
|
|
|
|
surface = display_create_surface(terminal->display, &rectangle);
|
|
|
|
cr = cairo_create(surface);
|
|
|
|
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
|
|
|
|
cairo_set_source_rgba(cr,
|
|
|
|
terminal->color_scheme->border.r,
|
|
|
|
terminal->color_scheme->border.g,
|
|
|
|
terminal->color_scheme->border.b,
|
|
|
|
terminal->color_scheme->border.a);
|
|
|
|
cairo_paint(cr);
|
|
|
|
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
|
|
|
|
|
|
|
|
cairo_set_font_face(cr, terminal->font_normal);
|
|
|
|
cairo_set_font_size(cr, 14);
|
|
|
|
|
|
|
|
cairo_font_extents(cr, &extents);
|
|
|
|
side_margin = (rectangle.width - terminal->width * extents.max_x_advance) / 2;
|
|
|
|
top_margin = (rectangle.height - terminal->height * extents.height) / 2;
|
|
|
|
|
|
|
|
cairo_set_line_width(cr, 1.0);
|
|
|
|
|
|
|
|
for (row = 0; row < terminal->height; row++) {
|
|
|
|
p_row = terminal_get_row(terminal, row);
|
|
|
|
for (col = 0; col < terminal->width; col++) {
|
|
|
|
/* get the attributes for this character cell */
|
|
|
|
attr = terminal_get_attr(terminal, row, col);
|
|
|
|
if ((attr.a & ATTRMASK_INVERSE) ||
|
|
|
|
(terminal->focused &&
|
|
|
|
terminal->row == row && terminal->column == col))
|
|
|
|
{
|
|
|
|
foreground = attr.bg;
|
|
|
|
background = attr.fg;
|
|
|
|
} else {
|
|
|
|
foreground = attr.fg;
|
|
|
|
background = attr.bg;
|
|
|
|
}
|
|
|
|
bold = attr.a & (ATTRMASK_BOLD | ATTRMASK_BLINK);
|
|
|
|
underline = attr.a & ATTRMASK_UNDERLINE;
|
|
|
|
|
|
|
|
/* paint the background */
|
|
|
|
cairo_set_source_rgba(cr,
|
|
|
|
terminal->color_table[background].r,
|
|
|
|
terminal->color_table[background].g,
|
|
|
|
terminal->color_table[background].b,
|
|
|
|
terminal->color_table[background].a);
|
|
|
|
cairo_move_to(cr, side_margin + (col * extents.max_x_advance),
|
|
|
|
top_margin + (row * extents.height));
|
|
|
|
cairo_rel_line_to(cr, extents.max_x_advance, 0);
|
|
|
|
cairo_rel_line_to(cr, 0, extents.height);
|
|
|
|
cairo_rel_line_to(cr, -extents.max_x_advance, 0);
|
|
|
|
cairo_close_path(cr);
|
|
|
|
cairo_fill(cr);
|
|
|
|
|
|
|
|
/* paint the foreground */
|
|
|
|
if (bold)
|
|
|
|
cairo_set_font_face(cr, terminal->font_bold);
|
|
|
|
else
|
|
|
|
cairo_set_font_face(cr, terminal->font_normal);
|
|
|
|
cairo_set_source_rgba(cr,
|
|
|
|
terminal->color_table[foreground].r,
|
|
|
|
terminal->color_table[foreground].g,
|
|
|
|
terminal->color_table[foreground].b,
|
|
|
|
terminal->color_table[foreground].a);
|
|
|
|
|
|
|
|
text_x = side_margin + col * extents.max_x_advance;
|
|
|
|
text_y = top_margin + extents.ascent + row * extents.height;
|
|
|
|
if (underline) {
|
|
|
|
cairo_move_to(cr, text_x, text_y + 2);
|
|
|
|
cairo_line_to(cr, text_x + extents.max_x_advance, text_y + 2);
|
|
|
|
cairo_stroke(cr);
|
|
|
|
}
|
|
|
|
cairo_move_to(cr, text_x, text_y);
|
|
|
|
|
|
|
|
toShow.c = p_row[col];
|
|
|
|
cairo_show_text(cr, (char *) toShow.c.byte);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!terminal->focused) {
|
|
|
|
d = 0.5;
|
|
|
|
|
|
|
|
cairo_set_line_width(cr, 1);
|
|
|
|
cairo_move_to(cr, side_margin + terminal->column * extents.max_x_advance + d,
|
|
|
|
top_margin + terminal->row * extents.height + d);
|
|
|
|
cairo_rel_line_to(cr, extents.max_x_advance - 2 * d, 0);
|
|
|
|
cairo_rel_line_to(cr, 0, extents.height - 2 * d);
|
|
|
|
cairo_rel_line_to(cr, -extents.max_x_advance + 2 * d, 0);
|
|
|
|
cairo_close_path(cr);
|
|
|
|
|
|
|
|
cairo_stroke(cr);
|
|
|
|
}
|
|
|
|
|
|
|
|
cairo_destroy(cr);
|
|
|
|
|
|
|
|
window_copy_surface(terminal->window,
|
|
|
|
&rectangle,
|
|
|
|
surface);
|
|
|
|
|
|
|
|
cairo_surface_destroy(surface);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
terminal_draw(struct terminal *terminal)
|
|
|
|
{
|
|
|
|
struct rectangle rectangle;
|
|
|
|
int32_t width, height;
|
|
|
|
|
|
|
|
window_get_child_rectangle(terminal->window, &rectangle);
|
|
|
|
|
|
|
|
width = (rectangle.width - 2 * terminal->margin) /
|
|
|
|
(int32_t) terminal->extents.max_x_advance;
|
|
|
|
height = (rectangle.height - 2 * terminal->margin) /
|
|
|
|
(int32_t) terminal->extents.height;
|
|
|
|
terminal_resize(terminal, width, height);
|
|
|
|
|
|
|
|
window_draw(terminal->window);
|
|
|
|
terminal_draw_contents(terminal);
|
|
|
|
window_flush(terminal->window);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
redraw_handler(struct window *window, void *data)
|
|
|
|
{
|
|
|
|
struct terminal *terminal = data;
|
|
|
|
|
|
|
|
terminal_draw(terminal);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define STATE_NORMAL 0
|
|
|
|
#define STATE_ESCAPE 1
|
|
|
|
#define STATE_ESCAPE_SPECIAL 2
|
|
|
|
#define STATE_ESCAPE_CSI 3
|
|
|
|
|
|
|
|
static void
|
|
|
|
terminal_data(struct terminal *terminal, const char *data, size_t length);
|
|
|
|
|
|
|
|
static void
|
|
|
|
handle_char(struct terminal *terminal, union utf8_char utf8);
|
|
|
|
|
|
|
|
static void
|
|
|
|
handle_sgr(struct terminal *terminal, int code);
|
|
|
|
|
|
|
|
static void
|
|
|
|
handle_term_parameter(struct terminal *terminal, int code, int sr)
|
|
|
|
{
|
|
|
|
if (terminal->qmark_flag) {
|
|
|
|
switch(code) {
|
|
|
|
case 6: /* DECOM */
|
|
|
|
terminal->origin_mode = sr;
|
|
|
|
if (terminal->origin_mode)
|
|
|
|
terminal->row = terminal->margin_top;
|
|
|
|
else
|
|
|
|
terminal->row = 0;
|
|
|
|
terminal->column = 0;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
fprintf(stderr, "Unknown parameter: ?%d\n", code);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
switch(code) {
|
|
|
|
default:
|
|
|
|
fprintf(stderr, "Unknown parameter: %d\n", code);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
handle_escape(struct terminal *terminal)
|
|
|
|
{
|
|
|
|
union utf8_char *row;
|
|
|
|
struct attr *attr_row;
|
|
|
|
char *p;
|
|
|
|
int i, count, top, bottom;
|
|
|
|
int args[10], set[10] = { 0, };
|
|
|
|
|
|
|
|
terminal->escape[terminal->escape_length++] = '\0';
|
|
|
|
i = 0;
|
|
|
|
p = &terminal->escape[2];
|
|
|
|
while ((isdigit(*p) || *p == ';') && i < 10) {
|
|
|
|
if (*p == ';') {
|
|
|
|
if (!set[i]) {
|
|
|
|
args[i] = 0;
|
|
|
|
set[i] = 1;
|
|
|
|
}
|
|
|
|
p++;
|
|
|
|
i++;
|
|
|
|
} else {
|
|
|
|
args[i] = strtol(p, &p, 10);
|
|
|
|
set[i] = 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (*p) {
|
|
|
|
case 'A':
|
|
|
|
count = set[0] ? args[0] : 1;
|
|
|
|
if (terminal->row - count >= 0)
|
|
|
|
terminal->row -= count;
|
|
|
|
else
|
|
|
|
terminal->row = 0;
|
|
|
|
break;
|
|
|
|
case 'B':
|
|
|
|
count = set[0] ? args[0] : 1;
|
|
|
|
if (terminal->row + count < terminal->height)
|
|
|
|
terminal->row += count;
|
|
|
|
else
|
|
|
|
terminal->row = terminal->height;
|
|
|
|
break;
|
|
|
|
case 'C':
|
|
|
|
count = set[0] ? args[0] : 1;
|
|
|
|
if (terminal->column + count < terminal->width)
|
|
|
|
terminal->column += count;
|
|
|
|
else
|
|
|
|
terminal->column = terminal->width;
|
|
|
|
break;
|
|
|
|
case 'D':
|
|
|
|
count = set[0] ? args[0] : 1;
|
|
|
|
if (terminal->column - count >= 0)
|
|
|
|
terminal->column -= count;
|
|
|
|
else
|
|
|
|
terminal->column = 0;
|
|
|
|
break;
|
|
|
|
case 'J':
|
|
|
|
row = terminal_get_row(terminal, terminal->row);
|
|
|
|
attr_row = terminal_get_attr_row(terminal, terminal->row);
|
|
|
|
memset(&row[terminal->column], 0, (terminal->width - terminal->column) * sizeof(union utf8_char));
|
|
|
|
attr_init(&attr_row[terminal->column], terminal->curr_attr, (terminal->width - terminal->column));
|
|
|
|
for (i = terminal->row + 1; i < terminal->height; i++) {
|
|
|
|
memset(terminal_get_row(terminal, i), 0, terminal->width * sizeof(union utf8_char));
|
|
|
|
attr_init(terminal_get_attr_row(terminal, i), terminal->curr_attr, terminal->width);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'G':
|
|
|
|
if (set[0])
|
|
|
|
terminal->column = args[0] - 1;
|
|
|
|
break;
|
|
|
|
case 'H':
|
|
|
|
case 'f':
|
|
|
|
terminal->row = set[0] ? args[0] - 1 : 0;
|
|
|
|
terminal->column = set[1] ? args[1] - 1 : 0;
|
|
|
|
break;
|
|
|
|
case 'K':
|
|
|
|
row = terminal_get_row(terminal, terminal->row);
|
|
|
|
attr_row = terminal_get_attr_row(terminal, terminal->row);
|
|
|
|
memset(&row[terminal->column], 0, (terminal->width - terminal->column) * sizeof(union utf8_char));
|
|
|
|
attr_init(&attr_row[terminal->column], terminal->curr_attr, (terminal->width - terminal->column));
|
|
|
|
break;
|
|
|
|
case 'S': /* SU */
|
|
|
|
terminal_scroll(terminal, set[0] ? args[0] : 1);
|
|
|
|
break;
|
|
|
|
case 'T': /* SD */
|
|
|
|
terminal_scroll(terminal, 0 - (set[0] ? args[0] : 1));
|
|
|
|
break;
|
|
|
|
case 'h': /* SM */
|
|
|
|
for(i = 0; i < 10 && set[i]; i++) {
|
|
|
|
handle_term_parameter(terminal, args[i], 1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'l': /* RM */
|
|
|
|
for(i = 0; i < 10 && set[i]; i++) {
|
|
|
|
handle_term_parameter(terminal, args[i], 0);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'm': /* SGR */
|
|
|
|
if (set[0] && set[1] && set[2] && args[1] == 5) {
|
|
|
|
if (args[0] == 38) {
|
|
|
|
handle_sgr(terminal, args[2] + 256);
|
|
|
|
break;
|
|
|
|
} else if (args[0] == 48) {
|
|
|
|
handle_sgr(terminal, args[2] + 512);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
for(i = 0; i < 10; i++) {
|
|
|
|
if(set[i]) {
|
|
|
|
handle_sgr(terminal, args[i]);
|
|
|
|
} else if(i == 0) {
|
|
|
|
handle_sgr(terminal, 0);
|
|
|
|
break;
|
|
|
|
} else {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'r':
|
|
|
|
if(!set[0]) {
|
|
|
|
terminal->margin_top = 0;
|
|
|
|
terminal->margin_bottom = terminal->height-1;
|
|
|
|
terminal->row = 0;
|
|
|
|
terminal->column = 0;
|
|
|
|
} else {
|
|
|
|
top = (set[0] ? args[0] : 1) - 1;
|
|
|
|
top = top < 0 ? 0 :
|
|
|
|
(top >= terminal->height ? terminal->height - 1 : top);
|
|
|
|
bottom = (set[1] ? args[1] : 1) - 1;
|
|
|
|
bottom = bottom < 0 ? 0 :
|
|
|
|
(bottom >= terminal->height ? terminal->height - 1 : bottom);
|
|
|
|
if(bottom > top) {
|
|
|
|
terminal->margin_top = top;
|
|
|
|
terminal->margin_bottom = bottom;
|
|
|
|
} else {
|
|
|
|
terminal->margin_top = 0;
|
|
|
|
terminal->margin_bottom = terminal->height-1;
|
|
|
|
}
|
|
|
|
if(terminal->origin_mode)
|
|
|
|
terminal->row = terminal->margin_top;
|
|
|
|
else
|
|
|
|
terminal->row = 0;
|
|
|
|
terminal->column = 0;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
fprintf(stderr, "Unknown CSI escape: %c\n", *p);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
handle_non_csi_escape(struct terminal *terminal, char code)
|
|
|
|
{
|
|
|
|
switch(code) {
|
|
|
|
case 'M': /* RI */
|
|
|
|
terminal->row -= 1;
|
|
|
|
if(terminal->row < terminal->margin_top) {
|
|
|
|
terminal->row = terminal->margin_top;
|
|
|
|
terminal_scroll(terminal, -1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'E': /* NEL */
|
|
|
|
terminal->column = 0;
|
|
|
|
// fallthrough
|
|
|
|
case 'D': /* IND */
|
|
|
|
terminal->row += 1;
|
|
|
|
if(terminal->row > terminal->margin_bottom) {
|
|
|
|
terminal->row = terminal->margin_bottom;
|
|
|
|
terminal_scroll(terminal, +1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
fprintf(stderr, "Unknown escape code: %c\n", code);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
handle_special_escape(struct terminal *terminal, char special, char code)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
handle_sgr(struct terminal *terminal, int code)
|
|
|
|
{
|
|
|
|
switch(code) {
|
|
|
|
case 0:
|
|
|
|
terminal->curr_attr = terminal->color_scheme->default_attr;
|
|
|
|
break;
|
|
|
|
case 1:
|
|
|
|
terminal->curr_attr.a |= ATTRMASK_BOLD;
|
|
|
|
if (terminal->curr_attr.fg < 8)
|
|
|
|
terminal->curr_attr.fg += 8;
|
|
|
|
break;
|
|
|
|
case 4:
|
|
|
|
terminal->curr_attr.a |= ATTRMASK_UNDERLINE;
|
|
|
|
break;
|
|
|
|
case 5:
|
|
|
|
terminal->curr_attr.a |= ATTRMASK_BLINK;
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
case 21:
|
|
|
|
case 22:
|
|
|
|
terminal->curr_attr.a &= ~ATTRMASK_BOLD;
|
|
|
|
if (terminal->curr_attr.fg < 16 && terminal->curr_attr.fg >= 8)
|
|
|
|
terminal->curr_attr.fg -= 8;
|
|
|
|
break;
|
|
|
|
case 24:
|
|
|
|
terminal->curr_attr.a &= ~ATTRMASK_UNDERLINE;
|
|
|
|
break;
|
|
|
|
case 25:
|
|
|
|
terminal->curr_attr.a &= ~ATTRMASK_BLINK;
|
|
|
|
break;
|
|
|
|
case 7:
|
|
|
|
case 26:
|
|
|
|
terminal->curr_attr.a |= ATTRMASK_INVERSE;
|
|
|
|
break;
|
|
|
|
case 27:
|
|
|
|
terminal->curr_attr.a &= ~ATTRMASK_INVERSE;
|
|
|
|
break;
|
|
|
|
case 39:
|
|
|
|
terminal->curr_attr.fg = terminal->color_scheme->default_attr.fg;
|
|
|
|
break;
|
|
|
|
case 49:
|
|
|
|
terminal->curr_attr.bg = terminal->color_scheme->default_attr.bg;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
if(code >= 30 && code <= 37) {
|
|
|
|
terminal->curr_attr.fg = code - 30;
|
|
|
|
if (terminal->curr_attr.a & ATTRMASK_BOLD)
|
|
|
|
terminal->curr_attr.fg += 8;
|
|
|
|
} else if(code >= 40 && code <= 47) {
|
|
|
|
terminal->curr_attr.bg = code - 40;
|
|
|
|
} else if(code >= 256 && code < 512) {
|
|
|
|
terminal->curr_attr.fg = code - 256;
|
|
|
|
} else if(code >= 512 && code < 768) {
|
|
|
|
terminal->curr_attr.bg = code - 512;
|
|
|
|
} else {
|
|
|
|
fprintf(stderr, "Unknown SGR code: %d\n", code);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Returns 1 if c was special, otherwise 0 */
|
|
|
|
static int
|
|
|
|
handle_special_char(struct terminal *terminal, char c)
|
|
|
|
{
|
|
|
|
union utf8_char *row;
|
|
|
|
struct attr *attr_row;
|
|
|
|
|
|
|
|
row = terminal_get_row(terminal, terminal->row);
|
|
|
|
attr_row = terminal_get_attr_row(terminal, terminal->row);
|
|
|
|
|
|
|
|
switch(c) {
|
|
|
|
case '\r':
|
|
|
|
terminal->column = 0;
|
|
|
|
break;
|
|
|
|
case '\n':
|
|
|
|
terminal->column = 0;
|
|
|
|
/* fallthrough */
|
|
|
|
case '\v':
|
|
|
|
case '\f':
|
|
|
|
terminal->row++;
|
|
|
|
if(terminal->row > terminal->margin_bottom) {
|
|
|
|
terminal->row = terminal->margin_bottom;
|
|
|
|
terminal_scroll(terminal, +1);
|
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
|
|
|
case '\t':
|
|
|
|
memset(&row[terminal->column], ' ', (-terminal->column & 7) * sizeof(union utf8_char));
|
|
|
|
attr_init(&attr_row[terminal->column], terminal->curr_attr, -terminal->column & 7);
|
|
|
|
terminal->column = (terminal->column + 7) & ~7;
|
|
|
|
break;
|
|
|
|
case '\b':
|
|
|
|
if (terminal->column > 0)
|
|
|
|
terminal->column--;
|
|
|
|
break;
|
|
|
|
case '\a':
|
|
|
|
/* Bell */
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
handle_char(struct terminal *terminal, union utf8_char utf8)
|
|
|
|
{
|
|
|
|
union utf8_char *row;
|
|
|
|
struct attr *attr_row;
|
|
|
|
|
|
|
|
if (handle_special_char(terminal, utf8.byte[0])) return;
|
|
|
|
|
|
|
|
/* There are a whole lot of non-characters, control codes,
|
|
|
|
* and formatting codes that should probably be ignored,
|
|
|
|
* for example: */
|
|
|
|
if (strncmp((char*) utf8.byte, "\xEF\xBB\xBF", 3) == 0) {
|
|
|
|
/* BOM, ignore */
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Some of these non-characters should be translated, e.g.: */
|
|
|
|
if (utf8.byte[0] < 32) {
|
|
|
|
utf8.byte[0] = utf8.byte[0] + 64;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* handle right margin effects */
|
|
|
|
if (terminal->column >= terminal->width) {
|
|
|
|
terminal->column--;
|
|
|
|
}
|
|
|
|
|
|
|
|
row = terminal_get_row(terminal, terminal->row);
|
|
|
|
attr_row = terminal_get_attr_row(terminal, terminal->row);
|
|
|
|
|
|
|
|
row[terminal->column] = utf8;
|
|
|
|
attr_row[terminal->column++] = terminal->curr_attr;
|
|
|
|
|
|
|
|
if (utf8.ch != terminal->last_char.ch)
|
|
|
|
terminal->last_char = utf8;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
terminal_data(struct terminal *terminal, const char *data, size_t length)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
union utf8_char utf8;
|
|
|
|
enum utf8_state parser_state;
|
|
|
|
|
|
|
|
for (i = 0; i < length; i++) {
|
|
|
|
parser_state =
|
|
|
|
utf8_next_char(&terminal->state_machine, data[i]);
|
|
|
|
switch(parser_state) {
|
|
|
|
case utf8state_accept:
|
|
|
|
utf8.ch = terminal->state_machine.s.ch;
|
|
|
|
break;
|
|
|
|
case utf8state_reject:
|
|
|
|
/* the unicode replacement character */
|
|
|
|
utf8.byte[0] = 0xEF;
|
|
|
|
utf8.byte[1] = 0xBF;
|
|
|
|
utf8.byte[2] = 0xBD;
|
|
|
|
utf8.byte[3] = 0x00;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* assume escape codes never use non-ASCII characters */
|
|
|
|
if (terminal->state == STATE_ESCAPE) {
|
|
|
|
terminal->escape[terminal->escape_length++] = utf8.byte[0];
|
|
|
|
if (utf8.byte[0] == '[') {
|
|
|
|
terminal->state = STATE_ESCAPE_CSI;
|
|
|
|
continue;
|
|
|
|
} else if (utf8.byte[0] == '#' || utf8.byte[0] == '(' ||
|
|
|
|
utf8.byte[0] == ')')
|
|
|
|
{
|
|
|
|
terminal->state = STATE_ESCAPE_SPECIAL;
|
|
|
|
continue;
|
|
|
|
} else {
|
|
|
|
terminal->state = STATE_NORMAL;
|
|
|
|
handle_non_csi_escape(terminal, utf8.byte[0]);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
} else if (terminal->state == STATE_ESCAPE_SPECIAL) {
|
|
|
|
terminal->escape[terminal->escape_length++] = utf8.byte[0];
|
|
|
|
terminal->state = STATE_NORMAL;
|
|
|
|
if (isdigit(utf8.byte[0]) || isalpha(utf8.byte[0])) {
|
|
|
|
handle_special_escape(terminal, terminal->escape[1],
|
|
|
|
utf8.byte[0]);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
} else if (terminal->state == STATE_ESCAPE_CSI) {
|
|
|
|
if (handle_special_char(terminal, utf8.byte[0]) != 0) {
|
|
|
|
/* do nothing */
|
|
|
|
} else if (utf8.byte[0] == '?') {
|
|
|
|
terminal->qmark_flag = 1;
|
|
|
|
} else {
|
|
|
|
/* Don't overflow the buffer */
|
|
|
|
if (terminal->escape_length < MAX_ESCAPE)
|
|
|
|
terminal->escape[terminal->escape_length++] = utf8.byte[0];
|
|
|
|
if (terminal->escape_length >= MAX_ESCAPE)
|
|
|
|
terminal->state = STATE_NORMAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isalpha(utf8.byte[0]) || utf8.byte[0] == '@' ||
|
|
|
|
utf8.byte[0] == '`')
|
|
|
|
{
|
|
|
|
terminal->state = STATE_NORMAL;
|
|
|
|
handle_escape(terminal);
|
|
|
|
continue;
|
|
|
|
} else {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* this is valid, because ASCII characters are never used to
|
|
|
|
* introduce a multibyte sequence in UTF-8 */
|
|
|
|
if (utf8.byte[0] == '\e') {
|
|
|
|
terminal->state = STATE_ESCAPE;
|
|
|
|
terminal->escape[0] = '\e';
|
|
|
|
terminal->escape_length = 1;
|
|
|
|
terminal->qmark_flag = 0;
|
|
|
|
} else {
|
|
|
|
handle_char(terminal, utf8);
|
|
|
|
} /* if */
|
|
|
|
} /* for */
|
|
|
|
|
|
|
|
window_schedule_redraw(terminal->window);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
key_handler(struct window *window, uint32_t key, uint32_t sym,
|
|
|
|
uint32_t state, uint32_t modifiers, void *data)
|
|
|
|
{
|
|
|
|
struct terminal *terminal = data;
|
|
|
|
char ch[2];
|
|
|
|
int len = 0;
|
|
|
|
|
|
|
|
switch (sym) {
|
|
|
|
case XK_F11:
|
|
|
|
if (!state)
|
|
|
|
break;
|
|
|
|
terminal->fullscreen ^= 1;
|
|
|
|
window_set_fullscreen(window, terminal->fullscreen);
|
|
|
|
window_schedule_redraw(terminal->window);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case XK_Delete:
|
|
|
|
sym = 0x04;
|
|
|
|
case XK_BackSpace:
|
|
|
|
case XK_Tab:
|
|
|
|
case XK_Linefeed:
|
|
|
|
case XK_Clear:
|
|
|
|
case XK_Return:
|
|
|
|
case XK_Pause:
|
|
|
|
case XK_Scroll_Lock:
|
|
|
|
case XK_Sys_Req:
|
|
|
|
case XK_Escape:
|
|
|
|
ch[len++] = sym & 0x7f;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case XK_Shift_L:
|
|
|
|
case XK_Shift_R:
|
|
|
|
case XK_Control_L:
|
|
|
|
case XK_Control_R:
|
|
|
|
case XK_Alt_L:
|
|
|
|
case XK_Alt_R:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
if (modifiers & WINDOW_MODIFIER_CONTROL)
|
|
|
|
sym = sym & 0x1f;
|
|
|
|
else if (modifiers & WINDOW_MODIFIER_ALT)
|
|
|
|
ch[len++] = 0x1b;
|
|
|
|
if (sym < 256)
|
|
|
|
ch[len++] = sym;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (state && len > 0)
|
|
|
|
write(terminal->master, ch, len);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
keyboard_focus_handler(struct window *window,
|
|
|
|
struct input *device, void *data)
|
|
|
|
{
|
|
|
|
struct terminal *terminal = data;
|
|
|
|
|
|
|
|
terminal->focused = (device != NULL);
|
|
|
|
window_schedule_redraw(terminal->window);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct terminal *
|
|
|
|
terminal_create(struct display *display, int fullscreen)
|
|
|
|
{
|
|
|
|
struct terminal *terminal;
|
|
|
|
cairo_surface_t *surface;
|
|
|
|
cairo_t *cr;
|
|
|
|
|
|
|
|
terminal = malloc(sizeof *terminal);
|
|
|
|
if (terminal == NULL)
|
|
|
|
return terminal;
|
|
|
|
|
|
|
|
memset(terminal, 0, sizeof *terminal);
|
|
|
|
terminal->fullscreen = fullscreen;
|
|
|
|
terminal->color_scheme = &DEFAULT_COLORS;
|
|
|
|
terminal_init(terminal);
|
|
|
|
terminal->margin_top = 0;
|
|
|
|
terminal->margin_bottom = 10000; /* much too large, will be trimmed down
|
|
|
|
* by terminal_resize */
|
|
|
|
terminal->window = window_create(display, "Wayland Terminal",
|
|
|
|
500, 400);
|
|
|
|
|
|
|
|
init_state_machine(&terminal->state_machine);
|
|
|
|
init_color_table(terminal);
|
|
|
|
|
|
|
|
terminal->display = display;
|
|
|
|
terminal->margin = 5;
|
|
|
|
|
|
|
|
window_set_fullscreen(terminal->window, terminal->fullscreen);
|
|
|
|
window_set_user_data(terminal->window, terminal);
|
|
|
|
window_set_redraw_handler(terminal->window, redraw_handler);
|
|
|
|
|
|
|
|
window_set_key_handler(terminal->window, key_handler);
|
|
|
|
window_set_keyboard_focus_handler(terminal->window,
|
|
|
|
keyboard_focus_handler);
|
|
|
|
|
|
|
|
surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 0, 0);
|
|
|
|
cr = cairo_create(surface);
|
|
|
|
terminal->font_bold = cairo_toy_font_face_create ("mono",
|
|
|
|
CAIRO_FONT_SLANT_NORMAL,
|
|
|
|
CAIRO_FONT_WEIGHT_BOLD);
|
|
|
|
cairo_font_face_reference(terminal->font_bold);
|
|
|
|
terminal->font_normal = cairo_toy_font_face_create ("mono",
|
|
|
|
CAIRO_FONT_SLANT_NORMAL,
|
|
|
|
CAIRO_FONT_WEIGHT_NORMAL);
|
|
|
|
cairo_font_face_reference(terminal->font_normal);
|
|
|
|
cairo_set_font_face(cr, terminal->font_normal);
|
|
|
|
cairo_set_font_size(cr, 14);
|
|
|
|
cairo_font_extents(cr, &terminal->extents);
|
|
|
|
cairo_destroy(cr);
|
|
|
|
cairo_surface_destroy(surface);
|
|
|
|
|
|
|
|
terminal_resize(terminal, 80, 24);
|
|
|
|
terminal_draw(terminal);
|
|
|
|
|
|
|
|
return terminal;
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
io_handler(GIOChannel *source,
|
|
|
|
GIOCondition condition,
|
|
|
|
gpointer data)
|
|
|
|
{
|
|
|
|
struct terminal *terminal = data;
|
|
|
|
gchar buffer[256];
|
|
|
|
gsize bytes_read;
|
|
|
|
GError *error = NULL;
|
|
|
|
|
|
|
|
g_io_channel_read_chars(source, buffer, sizeof buffer,
|
|
|
|
&bytes_read, &error);
|
|
|
|
|
|
|
|
terminal_data(terminal, buffer, bytes_read);
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
terminal_run(struct terminal *terminal, const char *path)
|
|
|
|
{
|
|
|
|
int master;
|
|
|
|
pid_t pid;
|
|
|
|
|
|
|
|
pid = forkpty(&master, NULL, NULL, NULL);
|
|
|
|
if (pid == 0) {
|
|
|
|
setenv("TERM", "vt100", 1);
|
|
|
|
if (execl(path, path, NULL)) {
|
|
|
|
printf("exec failed: %m\n");
|
|
|
|
exit(EXIT_FAILURE);
|
|
|
|
}
|
|
|
|
} else if (pid < 0) {
|
|
|
|
fprintf(stderr, "failed to fork and create pty (%m).\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
terminal->master = master;
|
|
|
|
terminal->channel = g_io_channel_unix_new(master);
|
|
|
|
fcntl(master, F_SETFL, O_NONBLOCK);
|
|
|
|
g_io_add_watch(terminal->channel, G_IO_IN,
|
|
|
|
io_handler, terminal);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const GOptionEntry option_entries[] = {
|
|
|
|
{ "fullscreen", 'f', 0, G_OPTION_ARG_NONE,
|
|
|
|
&option_fullscreen, "Run in fullscreen mode" },
|
|
|
|
{ NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
int main(int argc, char *argv[])
|
|
|
|
{
|
|
|
|
struct display *d;
|
|
|
|
struct terminal *terminal;
|
|
|
|
|
|
|
|
d = display_create(&argc, &argv, option_entries);
|
|
|
|
if (d == NULL) {
|
|
|
|
fprintf(stderr, "failed to create display: %m\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
terminal = terminal_create(d, option_fullscreen);
|
|
|
|
if (terminal_run(terminal, "/bin/bash"))
|
|
|
|
exit(EXIT_FAILURE);
|
|
|
|
|
|
|
|
display_run(d);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|