toaruos/apps/terminal.c

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/* vim: tabstop=4 shiftwidth=4 noexpandtab
* This file is part of ToaruOS and is released under the terms
* of the NCSA / University of Illinois License - see LICENSE.md
* Copyright (C) 2013-2018 K. Lange
*
* Terminal Emulator
*
* Graphical terminal emulator.
*
* Provides a number of features:
* - Windowed and full screen modes
* - Antialiased fonts
* - Built-in fallback bitmap font
* - ANSI escape support
* - 256 colors
*/
#include <stdio.h>
#include <stdint.h>
#include <syscall.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#include <time.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/wait.h>
#include <sys/time.h>
#include <getopt.h>
#include <errno.h>
#include <wchar.h>
#define TRACE_APP_NAME "terminal"
#include <toaru/trace.h>
#include <toaru/utf8decode.h>
#include <toaru/yutani.h>
#include <toaru/decorations.h>
#include <toaru/graphics.h>
#include <toaru/kbd.h>
#include <toaru/termemu.h>
#include <toaru/spinlock.h>
#include <toaru/list.h>
#include <toaru/menu.h>
#include <toaru/sdf.h>
#include "terminal-palette.h"
#include "terminal-font.h"
#define USE_BELL 0
/* master and slave pty descriptors */
static int fd_master, fd_slave;
static FILE * terminal;
int scale_fonts = 0; /* Whether fonts should be scaled */
float font_scaling = 1.0; /* How much they should be scaled by */
float font_gamma = 1.7; /* Gamma to use for SDF library */
uint16_t term_width = 0; /* Width of the terminal (in cells) */
uint16_t term_height = 0; /* Height of the terminal (in cells) */
uint16_t font_size = 16; /* Font size according to SDF library */
uint16_t char_width = 9; /* Width of a cell in pixels */
uint16_t char_height = 17; /* Height of a cell in pixels */
int csr_x = 0; /* Cursor X */
int csr_y = 0; /* Cursor Y */
term_cell_t * term_buffer = NULL; /* The terminal cell buffer */
uint32_t current_fg = 7; /* Current foreground color */
uint32_t current_bg = 0; /* Current background color */
uint8_t cursor_on = 1; /* Whether or not the cursor should be rendered */
uint8_t _fullscreen = 0; /* Whether or not we are running in fullscreen mode (GUI only) */
uint8_t _no_frame = 0; /* Whether to disable decorations or not */
uint8_t _login_shell = 0; /* Whether we're going to display a login shell or not */
uint8_t _use_sdf = 1; /* Whether or not to use SDF text rendering */
uint8_t _force_kernel = 0;
uint8_t _hold_out = 0; /* state indicator on last cell ignore \n */
uint8_t _free_size = 1; /* Disable rounding when resized */
int menu_bar_height = 24;
int selection = 0;
int selection_start_x = 0;
int selection_start_y = 0;
int selection_end_x = 0;
int selection_end_y = 0;
char * selection_text = NULL;
int last_mouse_x = -1;
int last_mouse_y = -1;
int button_state = 0;
uint64_t mouse_ticks = 0;
struct MenuList * menu_right_click = NULL;
yutani_window_t * window = NULL; /* GUI window */
yutani_t * yctx = NULL;
term_state_t * ansi_state = NULL;
int32_t l_x = INT32_MAX;
int32_t l_y = INT32_MAX;
int32_t r_x = -1;
int32_t r_y = -1;
void reinit(); /* Defined way further down */
void term_redraw_cursor();
/* Some GUI-only options */
uint32_t window_width = 640;
uint32_t window_height = 480;
#define TERMINAL_TITLE_SIZE 512
char terminal_title[TERMINAL_TITLE_SIZE];
size_t terminal_title_length = 0;
gfx_context_t * ctx;
static void render_decors(void);
void term_clear();
void flush_unused_images(void);
void dump_buffer();
/* Trigger to exit the terminal when the child process dies or
* we otherwise receive an exit signal */
volatile int exit_application = 0;
static void cell_redraw(uint16_t x, uint16_t y);
static void cell_redraw_inverted(uint16_t x, uint16_t y);
static uint64_t get_ticks(void) {
struct timeval now;
gettimeofday(&now, NULL);
return (uint64_t)now.tv_sec * 1000000LL + (uint64_t)now.tv_usec;
}
static void display_flip(void) {
if (l_x != INT32_MAX && l_y != INT32_MAX) {
flip(ctx);
yutani_flip_region(yctx, window, l_x, l_y, r_x - l_x, r_y - l_y);
l_x = INT32_MAX;
l_y = INT32_MAX;
r_x = -1;
r_y = -1;
}
}
static void set_term_font_size(float s) {
scale_fonts = 1;
font_scaling = s;
reinit(1);
}
static void set_term_font_gamma(float s) {
font_gamma = s;
reinit(1);
}
static void set_term_font_mode(int i) {
_use_sdf = i;
reinit(1);
}
/* Returns the lower of two shorts */
int32_t min(int32_t a, int32_t b) {
return (a < b) ? a : b;
}
/* Returns the higher of two shorts */
int32_t max(int32_t a, int32_t b) {
return (a > b) ? a : b;
}
void set_title(char * c) {
int len = min(TERMINAL_TITLE_SIZE, strlen(c)+1);
memcpy(terminal_title, c, len);
terminal_title[len-1] = '\0';
terminal_title_length = len - 1;
render_decors();
}
void iterate_selection(void (*func)(uint16_t x, uint16_t y)) {
if (selection_end_y < selection_start_y) {
for (int x = selection_end_x; x < term_width; ++x) {
func(x, selection_end_y);
}
for (int y = selection_end_y + 1; y < selection_start_y; ++y) {
for (int x = 0; x < term_width; ++x) {
func(x, y);
}
}
for (int x = 0; x <= selection_start_x; ++x) {
func(x, selection_start_y);
}
} else if (selection_start_y == selection_end_y) {
if (selection_start_x > selection_end_x) {
for (int x = selection_end_x; x <= selection_start_x; ++x) {
func(x, selection_start_y);
}
} else {
for (int x = selection_start_x; x <= selection_end_x; ++x) {
func(x, selection_start_y);
}
}
} else {
for (int x = selection_start_x; x < term_width; ++x) {
func(x, selection_start_y);
}
for (int y = selection_start_y + 1; y < selection_end_y; ++y) {
for (int x = 0; x < term_width; ++x) {
func(x, y);
}
}
for (int x = 0; x <= selection_end_x; ++x) {
func(x, selection_end_y);
}
}
}
void unredraw_selection(void) {
iterate_selection(cell_redraw);
}
void redraw_selection(void) {
iterate_selection(cell_redraw_inverted);
}
static int _selection_count = 0;
static int _selection_i = 0;
static int to_eight(uint32_t codepoint, char * out) {
memset(out, 0x00, 7);
if (codepoint < 0x0080) {
out[0] = (char)codepoint;
} else if (codepoint < 0x0800) {
out[0] = 0xC0 | (codepoint >> 6);
out[1] = 0x80 | (codepoint & 0x3F);
} else if (codepoint < 0x10000) {
out[0] = 0xE0 | (codepoint >> 12);
out[1] = 0x80 | ((codepoint >> 6) & 0x3F);
out[2] = 0x80 | (codepoint & 0x3F);
} else if (codepoint < 0x200000) {
out[0] = 0xF0 | (codepoint >> 18);
out[1] = 0x80 | ((codepoint >> 12) & 0x3F);
out[2] = 0x80 | ((codepoint >> 6) & 0x3F);
out[3] = 0x80 | ((codepoint) & 0x3F);
} else if (codepoint < 0x4000000) {
out[0] = 0xF8 | (codepoint >> 24);
out[1] = 0x80 | (codepoint >> 18);
out[2] = 0x80 | ((codepoint >> 12) & 0x3F);
out[3] = 0x80 | ((codepoint >> 6) & 0x3F);
out[4] = 0x80 | ((codepoint) & 0x3F);
} else {
out[0] = 0xF8 | (codepoint >> 30);
out[1] = 0x80 | ((codepoint >> 24) & 0x3F);
out[2] = 0x80 | ((codepoint >> 18) & 0x3F);
out[3] = 0x80 | ((codepoint >> 12) & 0x3F);
out[4] = 0x80 | ((codepoint >> 6) & 0x3F);
out[5] = 0x80 | ((codepoint) & 0x3F);
}
return strlen(out);
}
void count_selection(uint16_t x, uint16_t y) {
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
if (!(cell->flags & ANSI_EXT_IMG)) {
if (((uint32_t *)cell)[0] != 0x00000000) {
char tmp[7];
_selection_count += to_eight(cell->c, tmp);
}
}
if (x == term_width - 1) {
_selection_count++;
}
}
void write_selection(uint16_t x, uint16_t y) {
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
if (!(cell->flags & ANSI_EXT_IMG)) {
if (((uint32_t *)cell)[0] != 0x00000000) {
char tmp[7];
int count = to_eight(cell->c, tmp);
for (int i = 0; i < count; ++i) {
selection_text[_selection_i] = tmp[i];
_selection_i++;
}
}
}
if (x == term_width - 1) {
selection_text[_selection_i] = '\n';;
_selection_i++;
}
}
char * copy_selection(void) {
_selection_count = 0;
iterate_selection(count_selection);
fprintf(stderr, "Selection length is %d\n", _selection_count);
if (selection_text) {
free(selection_text);
}
if (_selection_count == 0) {
return NULL;
}
selection_text = malloc(_selection_count + 1);
selection_text[_selection_count] = '\0';
_selection_i = 0;
iterate_selection(write_selection);
if (selection_text[_selection_count-1] == '\n') {
/* Don't end on a line feed */
selection_text[_selection_count-1] = '\0';
}
yutani_set_clipboard(yctx, selection_text);
return selection_text;
}
/* Stuffs a string into the stdin of the terminal's child process
* Useful for things like the ANSI DSR command. */
void input_buffer_stuff(char * str) {
size_t s = strlen(str) + 1;
write(fd_master, str, s);
}
struct menu_bar terminal_menu_bar = {0};
struct menu_bar_entries terminal_menu_entries[] = {
{"File", "file"},
{"Edit", "edit"},
{"View", "view"},
{"Help", "help"},
{NULL, NULL},
};
static void render_decors(void) {
/* XXX Make the decorations library support Yutani windows */
if (_fullscreen) return;
if (!_no_frame) {
render_decorations(window, ctx, terminal_title_length ? terminal_title : "Terminal");
terminal_menu_bar.x = decor_left_width;
terminal_menu_bar.y = decor_top_height;
terminal_menu_bar.width = window_width;
terminal_menu_bar.window = window;
menu_bar_render(&terminal_menu_bar, ctx);
}
yutani_window_advertise_icon(yctx, window, terminal_title_length ? terminal_title : "Terminal", "utilities-terminal");
l_x = 0; l_y = 0;
r_x = window->width;
r_y = window->height;
display_flip();
}
static inline void term_set_point(uint16_t x, uint16_t y, uint32_t color ) {
if (_fullscreen) {
color = alpha_blend_rgba(premultiply(rgba(0,0,0,0xFF)), color);
}
if (!_no_frame) {
GFX(ctx, (x+decor_left_width),(y+decor_top_height+menu_bar_height)) = color;
} else {
GFX(ctx, x,y) = color;
}
}
void draw_semi_block(int c, int x, int y, uint32_t fg, uint32_t bg) {
int height;
bg = premultiply(bg);
fg = premultiply(fg);
if (c == 0x2580) {
uint32_t t = bg;
bg = fg;
fg = t;
c = 0x2584;
for (uint8_t i = 0; i < char_height; ++i) {
for (uint8_t j = 0; j < char_width; ++j) {
term_set_point(x+j,y+i,bg);
}
}
}
c -= 0x2580;
height = char_height - ((c * char_height) / 8);
for (uint8_t i = height; i < char_height; ++i) {
for (uint8_t j = 0; j < char_width; ++j) {
term_set_point(x+j, y+i,fg);
}
}
}
uint32_t ununicode(uint32_t c) {
switch (c) {
case L'': return 1;
case L'': return 2;
case L'': return 3;
case L'': return 4;
case L'': return 5;
case L'': return 6;
case L'': return 7;
case L'': return 8;
case L'': return 9;
case L'': return 10;
case L'': return 11;
case L'': return 12;
case L'': return 13;
case L'': return 14;
case L'': return 15;
case L'': return 16;
case L'': return 17;
case L'': return 18;
case L'': return 19;
case L'': return 20;
case L'§': return 21;
case L'': return 22;
case L'': return 23;
case L'': return 24;
case L'': return 25;
case L'': return 26;
case L'': return 27;
case L'': return 28;
case L'': return 29;
case L'': return 30;
case L'': return 31;
/* ASCII text */
case L'': return 127;
case L'Ç': return 128;
case L'ü': return 129;
case L'é': return 130;
case L'â': return 131;
case L'ä': return 132;
case L'à': return 133;
case L'å': return 134;
case L'ç': return 135;
case L'ê': return 136;
case L'ë': return 137;
case L'è': return 138;
case L'ï': return 139;
case L'î': return 140;
case L'ì': return 141;
case L'Ä': return 142;
case L'Å': return 143;
case L'É': return 144;
case L'æ': return 145;
case L'Æ': return 146;
case L'ô': return 147;
case L'ö': return 148;
case L'ò': return 149;
case L'û': return 150;
case L'ù': return 151;
case L'ÿ': return 152;
case L'Ö': return 153;
case L'Ü': return 154;
case L'¢': return 155;
case L'£': return 156;
case L'¥': return 157;
case L'': return 158;
case L'ƒ': return 159;
case L'á': return 160;
case L'í': return 161;
case L'ó': return 162;
case L'ú': return 163;
case L'ñ': return 164;
case L'Ñ': return 165;
case L'ª': return 166;
case L'º': return 167;
case L'¿': return 168;
case L'': return 169;
case L'¬': return 170;
case L'½': return 171;
case L'¼': return 172;
case L'¡': return 173;
case L'«': return 174;
case L'»': return 175;
case L'': return 176;
case L'': return 177;
case L'': return 178;
case L'': return 179;
case L'': return 180;
case L'': return 181;
case L'': return 182;
case L'': return 183;
case L'': return 184;
case L'': return 185;
case L'': return 186;
case L'': return 187;
case L'': return 188;
case L'': return 189;
case L'': return 190;
case L'': return 191;
case L'': return 192;
case L'': return 193;
case L'': return 194;
case L'': return 195;
case L'': return 196;
case L'': return 197;
case L'': return 198;
case L'': return 199;
case L'': return 200;
case L'': return 201;
case L'': return 202;
case L'': return 203;
case L'': return 204;
case L'': return 205;
case L'': return 206;
case L'': return 207;
case L'': return 208;
case L'': return 209;
case L'': return 210;
case L'': return 211;
case L'': return 212;
case L'': return 213;
case L'': return 214;
case L'': return 215;
case L'': return 216;
case L'': return 217;
case L'': return 218;
case L'': return 219;
case L'': return 220;
case L'': return 221;
case L'': return 222;
case L'': return 223;
case L'α': return 224;
case L'ß': return 225;
case L'Γ': return 226;
case L'π': return 227;
case L'Σ': return 228;
case L'σ': return 229;
case L'µ': return 230;
case L'τ': return 231;
case L'Φ': return 232;
case L'Θ': return 233;
case L'Ω': return 234;
case L'δ': return 235;
case L'': return 236;
case L'φ': return 237;
case L'ε': return 238;
case L'': return 239;
case L'': return 240;
case L'±': return 241;
case L'': return 242;
case L'': return 243;
case L'': return 244;
case L'': return 245;
case L'÷': return 246;
case L'': return 247;
case L'°': return 248;
case L'': return 249;
case L'·': return 250;
case L'': return 251;
case L'': return 252;
case L'²': return 253;
case L'': return 254;
}
return 4;
}
void
term_write_char(
uint32_t val,
uint16_t x,
uint16_t y,
uint32_t fg,
uint32_t bg,
uint8_t flags
) {
uint32_t _fg, _bg;
if (fg < PALETTE_COLORS) {
_fg = term_colors[fg];
_fg |= 0xFF << 24;
} else {
_fg = fg;
}
if (bg < PALETTE_COLORS) {
_bg = term_colors[bg];
if (flags & ANSI_SPECBG) {
_bg |= 0xFF << 24;
} else {
_bg |= TERM_DEFAULT_OPAC << 24;
}
} else {
_bg = bg;
}
if (val >= 0x2580 && val <= 0x2588) {
for (uint8_t i = 0; i < char_height; ++i) {
for (uint8_t j = 0; j < char_width; ++j) {
term_set_point(x+j,y+i,premultiply(_bg));
}
}
draw_semi_block(val, x, y, _fg, _bg);
goto _extra_stuff;
}
if (val > 128) {
val = ununicode(val);
}
if (_use_sdf) {
char tmp[2] = {val,0};
for (uint8_t i = 0; i < char_height; ++i) {
for (uint8_t j = 0; j < char_width; ++j) {
term_set_point(x+j,y+i,_bg);
}
}
if (val != 0 && val != ' ' && _fg != _bg) {
int _font = SDF_FONT_MONO;
if (flags & ANSI_BOLD && flags & ANSI_ITALIC) {
_font = SDF_FONT_MONO_BOLD_OBLIQUE;
} else if (flags & ANSI_BOLD) {
_font = SDF_FONT_MONO_BOLD;
} else if (flags & ANSI_ITALIC) {
_font = SDF_FONT_MONO_OBLIQUE;
}
if (_no_frame) {
draw_sdf_string_gamma(ctx, x-1, y, tmp, font_size, _fg, _font, font_gamma);
} else {
draw_sdf_string_gamma(ctx, x+decor_left_width-1, y+decor_top_height+menu_bar_height, tmp, font_size, _fg, _font, font_gamma);
}
}
} else {
#ifdef number_font
uint8_t * c = number_font[val];
for (uint8_t i = 0; i < char_height; ++i) {
for (uint8_t j = 0; j < char_width; ++j) {
if (c[i] & (1 << (8-j))) {
term_set_point(x+j,y+i,_fg);
} else {
term_set_point(x+j,y+i,_bg);
}
}
}
#else
uint16_t * c = large_font[val];
for (uint8_t i = 0; i < char_height; ++i) {
for (uint8_t j = 0; j < char_width; ++j) {
if (c[i] & (1 << (15-j))) {
term_set_point(x+j,y+i,_fg);
} else {
term_set_point(x+j,y+i,_bg);
}
}
}
#endif
}
_extra_stuff:
if (flags & ANSI_UNDERLINE) {
for (uint8_t i = 0; i < char_width; ++i) {
term_set_point(x + i, y + char_height - 1, _fg);
}
}
if (flags & ANSI_CROSS) {
for (uint8_t i = 0; i < char_width; ++i) {
term_set_point(x + i, y + char_height - 7, _fg);
}
}
if (flags & ANSI_BORDER) {
for (uint8_t i = 0; i < char_height; ++i) {
term_set_point(x , y + i, _fg);
term_set_point(x + (char_width - 1), y + i, _fg);
}
for (uint8_t j = 0; j < char_width; ++j) {
term_set_point(x + j, y, _fg);
term_set_point(x + j, y + (char_height - 1), _fg);
}
}
if (!_no_frame) {
l_x = min(l_x, decor_left_width + x);
l_y = min(l_y, decor_top_height+menu_bar_height + y);
if (flags & ANSI_WIDE) {
r_x = max(r_x, decor_left_width + x + char_width * 2);
r_y = max(r_y, decor_top_height+menu_bar_height + y + char_height * 2);
} else {
r_x = max(r_x, decor_left_width + x + char_width);
r_y = max(r_y, decor_top_height+menu_bar_height + y + char_height);
}
} else {
l_x = min(l_x, x);
l_y = min(l_y, y);
if (flags & ANSI_WIDE) {
r_x = max(r_x, x + char_width * 2);
r_y = max(r_y, y + char_height * 2);
} else {
r_x = max(r_x, x + char_width);
r_y = max(r_y, y + char_height);
}
}
}
static void cell_set(uint16_t x, uint16_t y, uint32_t c, uint32_t fg, uint32_t bg, uint32_t flags) {
if (x >= term_width || y >= term_height) return;
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
cell->c = c;
cell->fg = fg;
cell->bg = bg;
cell->flags = flags;
}
static void redraw_cell_image(uint16_t x, uint16_t y, term_cell_t * cell) {
if (x >= term_width || y >= term_height) return;
uint32_t * data = (uint32_t *)cell->fg;
for (uint32_t yy = 0; yy < char_height; ++yy) {
for (uint32_t xx = 0; xx < char_width; ++xx) {
term_set_point(x * char_width + xx, y * char_height + yy, *data);
data++;
}
}
if (!_no_frame) {
l_x = min(l_x, decor_left_width + x * char_width);
l_y = min(l_y, decor_top_height+menu_bar_height + y * char_height);
r_x = max(r_x, decor_left_width + x * char_width + char_width);
r_y = max(r_y, decor_top_height+menu_bar_height + y * char_height + char_height);
} else {
l_x = min(l_x, x * char_width);
l_y = min(l_y, y * char_height);
r_x = max(r_x, x * char_width + char_width);
r_y = max(r_y, y * char_height + char_height);
}
}
static void cell_redraw(uint16_t x, uint16_t y) {
if (x >= term_width || y >= term_height) return;
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
if (cell->flags & ANSI_EXT_IMG) { redraw_cell_image(x,y,cell); return; }
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
} else {
term_write_char(cell->c, x * char_width, y * char_height, cell->fg, cell->bg, cell->flags);
}
}
static void cell_redraw_inverted(uint16_t x, uint16_t y) {
if (x >= term_width || y >= term_height) return;
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
if (cell->flags & ANSI_EXT_IMG) { redraw_cell_image(x,y,cell); return; }
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_BG, TERM_DEFAULT_FG, TERM_DEFAULT_FLAGS | ANSI_SPECBG);
} else {
term_write_char(cell->c, x * char_width, y * char_height, cell->bg, cell->fg, cell->flags | ANSI_SPECBG);
}
}
static void cell_redraw_box(uint16_t x, uint16_t y) {
if (x >= term_width || y >= term_height) return;
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
if (cell->flags & ANSI_EXT_IMG) { redraw_cell_image(x,y,cell); return; }
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS | ANSI_BORDER);
} else {
term_write_char(cell->c, x * char_width, y * char_height, cell->fg, cell->bg, cell->flags | ANSI_BORDER);
}
}
void render_cursor() {
if (!window->focused) {
cell_redraw_box(csr_x, csr_y);
} else {
cell_redraw_inverted(csr_x, csr_y);
}
}
void draw_cursor() {
if (!cursor_on) return;
mouse_ticks = get_ticks();
render_cursor();
}
void term_redraw_all() {
for (int i = 0; i < term_height; i++) {
for (int x = 0; x < term_width; ++x) {
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (i * term_width + x) * sizeof(term_cell_t));
if (cell->flags & ANSI_EXT_IMG) { redraw_cell_image(x,i,cell); continue; }
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, i * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
} else {
term_write_char(cell->c, x * char_width, i * char_height, cell->fg, cell->bg, cell->flags);
}
}
}
}
void term_scroll(int how_much) {
if (how_much >= term_height || -how_much >= term_height) {
term_clear();
return;
}
if (how_much == 0) {
return;
}
cell_redraw(csr_x, csr_y);
if (how_much > 0) {
/* Shift terminal cells one row up */
memmove(term_buffer, (void *)((uintptr_t)term_buffer + sizeof(term_cell_t) * term_width), sizeof(term_cell_t) * term_width * (term_height - how_much));
/* Reset the "new" row to clean cells */
memset((void *)((uintptr_t)term_buffer + sizeof(term_cell_t) * term_width * (term_height - how_much)), 0x0, sizeof(term_cell_t) * term_width * how_much);
/* In graphical modes, we will shift the graphics buffer up as necessary */
uintptr_t dst, src;
size_t siz = char_height * (term_height - how_much) * GFX_W(ctx) * GFX_B(ctx);
if (!_no_frame) {
/* Must include decorations */
dst = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * (decor_top_height+menu_bar_height)) * GFX_B(ctx);
src = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * (decor_top_height+menu_bar_height + char_height * how_much)) * GFX_B(ctx);
} else {
/* Can skip decorations */
dst = (uintptr_t)ctx->backbuffer;
src = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * char_height * how_much) * GFX_B(ctx);
}
/* Perform the shift */
memmove((void *)dst, (void *)src, siz);
/* And redraw the new rows */
for (int i = 0; i < how_much; ++i) {
for (uint16_t x = 0; x < term_width; ++x) {
cell_set(x,term_height - how_much,' ', current_fg, current_bg, ansi_state->flags);
cell_redraw(x, term_height - how_much);
}
}
} else {
how_much = -how_much;
/* Shift terminal cells one row up */
memmove((void *)((uintptr_t)term_buffer + sizeof(term_cell_t) * term_width), term_buffer, sizeof(term_cell_t) * term_width * (term_height - how_much));
/* Reset the "new" row to clean cells */
memset(term_buffer, 0x0, sizeof(term_cell_t) * term_width * how_much);
uintptr_t dst, src;
size_t siz = char_height * (term_height - how_much) * GFX_W(ctx) * GFX_B(ctx);
if (!_no_frame) {
src = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * (decor_top_height+menu_bar_height)) * GFX_B(ctx);
dst = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * (decor_top_height+menu_bar_height + char_height * how_much)) * GFX_B(ctx);
} else {
src = (uintptr_t)ctx->backbuffer;
dst = (uintptr_t)ctx->backbuffer + (GFX_W(ctx) * char_height * how_much) * GFX_B(ctx);
}
/* Perform the shift */
memmove((void *)dst, (void *)src, siz);
/* And redraw the new rows */
for (int i = 0; i < how_much; ++i) {
for (uint16_t x = 0; x < term_width; ++x) {
cell_redraw(x, i);
}
}
}
flush_unused_images();
yutani_flip(yctx, window);
}
int is_wide(uint32_t codepoint) {
if (codepoint < 256) return 0;
return wcwidth(codepoint) == 2;
}
struct scrollback_row {
unsigned short width;
term_cell_t cells[];
};
#define MAX_SCROLLBACK 10240
list_t * scrollback_list = NULL;
int scrollback_offset = 0;
void save_scrollback() {
/* Save the current top row for scrollback */
if (!scrollback_list) {
scrollback_list = list_create();
}
if (scrollback_list->length == MAX_SCROLLBACK) {
free(list_dequeue(scrollback_list));
}
struct scrollback_row * row = malloc(sizeof(struct scrollback_row) + sizeof(term_cell_t) * term_width + 20);
row->width = term_width;
for (int i = 0; i < term_width; ++i) {
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (i) * sizeof(term_cell_t));
memcpy(&row->cells[i], cell, sizeof(term_cell_t));
}
list_insert(scrollback_list, row);
}
void redraw_scrollback() {
if (!scrollback_offset) {
term_redraw_all();
display_flip();
return;
}
if (scrollback_offset < term_height) {
for (int i = scrollback_offset; i < term_height; i++) {
int y = i - scrollback_offset;
for (int x = 0; x < term_width; ++x) {
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
if (cell->flags & ANSI_EXT_IMG) { redraw_cell_image(x,i,cell); continue; }
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, i * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
} else {
term_write_char(cell->c, x * char_width, i * char_height, cell->fg, cell->bg, cell->flags);
}
}
}
node_t * node = scrollback_list->tail;
for (int i = 0; i < scrollback_offset; ++i) {
struct scrollback_row * row = (struct scrollback_row *)node->value;
int y = scrollback_offset - 1 - i;
int width = row->width;
if (width > term_width) {
width = term_width;
} else {
for (int x = row->width; x < term_width; ++x) {
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
}
}
for (int x = 0; x < width; ++x) {
term_cell_t * cell = &row->cells[x];
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
} else {
term_write_char(cell->c, x * char_width, y * char_height, cell->fg, cell->bg, cell->flags);
}
}
node = node->prev;
}
} else {
node_t * node = scrollback_list->tail;
for (int i = 0; i < scrollback_offset - term_height; ++i) {
node = node->prev;
}
for (int i = scrollback_offset - term_height; i < scrollback_offset; ++i) {
struct scrollback_row * row = (struct scrollback_row *)node->value;
int y = scrollback_offset - 1 - i;
int width = row->width;
if (width > term_width) {
width = term_width;
} else {
for (int x = row->width; x < term_width; ++x) {
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
}
}
for (int x = 0; x < width; ++x) {
term_cell_t * cell = &row->cells[x];
if (((uint32_t *)cell)[0] == 0x00000000) {
term_write_char(' ', x * char_width, y * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
} else {
term_write_char(cell->c, x * char_width, y * char_height, cell->fg, cell->bg, cell->flags);
}
}
node = node->prev;
}
}
display_flip();
}
void term_write(char c) {
static uint32_t unicode_state = 0;
static uint32_t codepoint = 0;
cell_redraw(csr_x, csr_y);
if (!decode(&unicode_state, &codepoint, (uint8_t)c)) {
uint32_t o = codepoint;
codepoint = 0;
if (c == '\r') {
csr_x = 0;
return;
}
if (csr_x < 0) csr_x = 0;
if (csr_y < 0) csr_y = 0;
if (csr_x == term_width) {
csr_x = 0;
++csr_y;
}
if (csr_y == term_height) {
save_scrollback();
term_scroll(1);
csr_y = term_height - 1;
}
if (c == '\n') {
if (csr_x == 0 && _hold_out) {
_hold_out = 0;
return;
}
++csr_y;
if (csr_y == term_height) {
save_scrollback();
term_scroll(1);
csr_y = term_height - 1;
}
draw_cursor();
} else if (c == '\007') {
/* bell */
#if USE_BELL
for (int i = 0; i < term_height; ++i) {
for (int j = 0; j < term_width; ++j) {
cell_redraw_inverted(j, i);
}
}
syscall_nanosleep(0,10);
term_redraw_all();
#endif
} else if (c == '\b') {
if (csr_x > 0) {
--csr_x;
}
cell_redraw(csr_x, csr_y);
draw_cursor();
} else if (c == '\t') {
csr_x += (8 - csr_x % 8);
draw_cursor();
} else {
int wide = is_wide(o);
uint8_t flags = ansi_state->flags;
if (wide && csr_x == term_width - 1) {
csr_x = 0;
++csr_y;
}
if (wide) {
flags = flags | ANSI_WIDE;
}
cell_set(csr_x,csr_y, o, current_fg, current_bg, flags);
cell_redraw(csr_x,csr_y);
csr_x++;
if (wide && csr_x != term_width) {
cell_set(csr_x, csr_y, 0xFFFF, current_fg, current_bg, ansi_state->flags);
cell_redraw(csr_x,csr_y);
cell_redraw(csr_x-1,csr_y);
csr_x++;
}
}
} else if (unicode_state == UTF8_REJECT) {
unicode_state = 0;
codepoint = 0;
}
draw_cursor();
}
void term_set_csr(int x, int y) {
cell_redraw(csr_x,csr_y);
csr_x = x;
csr_y = y;
draw_cursor();
}
int term_get_csr_x(void) {
return csr_x;
}
int term_get_csr_y(void) {
return csr_y;
}
static list_t * images_list = NULL;
void term_set_cell_contents(int x, int y, char * data) {
if (!images_list) {
images_list = list_create();
}
char * cell_data = malloc(char_width * char_height * sizeof(uint32_t));
memcpy(cell_data, data, char_width * char_height * sizeof(uint32_t));
list_insert(images_list, cell_data);
cell_set(x, y, ' ', (uint32_t)cell_data, 0, ANSI_EXT_IMG);
return;
}
void flush_unused_images(void) {
if (!images_list) return;
list_t * tmp = list_create();
for (int y = 0; y < term_height; ++y) {
for (int x = 0; x < term_width; ++x) {
term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
if (cell->flags & ANSI_EXT_IMG) {
list_insert(tmp, (void *)cell->fg);
}
}
}
foreach(node, images_list) {
if (!list_find(tmp, node->value)) {
free(node->value);
}
}
list_free(images_list);
images_list = tmp;
}
int term_get_cell_width(void) {
return char_width;
}
int term_get_cell_height(void) {
return char_height;
}
void term_set_csr_show(int on) {
cursor_on = on;
}
void term_set_colors(uint32_t fg, uint32_t bg) {
current_fg = fg;
current_bg = bg;
}
void term_redraw_cursor() {
if (term_buffer) {
draw_cursor();
}
}
void flip_cursor() {
static uint8_t cursor_flipped = 0;
if (scrollback_offset != 0) {
return; /* Don't flip cursor while drawing scrollback */
}
if (window->focused && cursor_flipped) {
cell_redraw(csr_x, csr_y);
} else {
render_cursor();
}
display_flip();
cursor_flipped = 1 - cursor_flipped;
}
void term_set_cell(int x, int y, uint32_t c) {
cell_set(x, y, c, current_fg, current_bg, ansi_state->flags);
cell_redraw(x, y);
}
void term_redraw_cell(int x, int y) {
if (x < 0 || y < 0 || x >= term_width || y >= term_height) return;
cell_redraw(x,y);
}
void term_clear(int i) {
if (i == 2) {
/* Oh dear */
csr_x = 0;
csr_y = 0;
memset((void *)term_buffer, 0x00, term_width * term_height * sizeof(term_cell_t));
if (!_no_frame) {
render_decors();
}
term_redraw_all();
} else if (i == 0) {
for (int x = csr_x; x < term_width; ++x) {
term_set_cell(x, csr_y, ' ');
}
for (int y = csr_y + 1; y < term_height; ++y) {
for (int x = 0; x < term_width; ++x) {
term_set_cell(x, y, ' ');
}
}
} else if (i == 1) {
for (int y = 0; y < csr_y; ++y) {
for (int x = 0; x < term_width; ++x) {
term_set_cell(x, y, ' ');
}
}
for (int x = 0; x < csr_x; ++x) {
term_set_cell(x, csr_y, ' ');
}
}
flush_unused_images();
}
#if 0
char * loadMemFont(char * name, char * ident, size_t * size) {
size_t s = 0;
int error;
char tmp[100];
snprintf(tmp, 100, "sys.%s.fonts.%s", yctx->server_ident, ident);
char * font = (char *)syscall_shm_obtain(tmp, &s);
*size = s;
return font;
}
#endif
#define INPUT_SIZE 1024
char input_buffer[INPUT_SIZE];
int input_collected = 0;
void clear_input() {
memset(input_buffer, 0x0, INPUT_SIZE);
input_collected = 0;
}
pid_t child_pid = 0;
void handle_input(char c) {
write(fd_master, &c, 1);
display_flip();
}
void handle_input_s(char * c) {
write(fd_master, c, strlen(c));
display_flip();
}
void scroll_up(int amount) {
int i = 0;
while (i < amount && scrollback_list && scrollback_offset < (int)scrollback_list->length) {
scrollback_offset ++;
i++;
}
redraw_scrollback();
}
void scroll_down(int amount) {
int i = 0;
while (i < amount && scrollback_list && scrollback_offset != 0) {
scrollback_offset -= 1;
i++;
}
redraw_scrollback();
}
void key_event(int ret, key_event_t * event) {
if (ret) {
/* Special keys */
if ((event->modifiers & KEY_MOD_LEFT_SHIFT || event->modifiers & KEY_MOD_RIGHT_SHIFT) &&
(event->modifiers & KEY_MOD_LEFT_CTRL || event->modifiers & KEY_MOD_RIGHT_CTRL) &&
(event->keycode == 'c')) {
if (selection) {
/* Copy selection */
copy_selection();
}
return;
}
if ((event->modifiers & KEY_MOD_LEFT_SHIFT || event->modifiers & KEY_MOD_RIGHT_SHIFT) &&
(event->modifiers & KEY_MOD_LEFT_CTRL || event->modifiers & KEY_MOD_RIGHT_CTRL) &&
(event->keycode == 'v')) {
/* Paste selection */
yutani_special_request(yctx, NULL, YUTANI_SPECIAL_REQUEST_CLIPBOARD);
#if 0
if (selection_text) {
handle_input_s(selection_text);
}
#endif
return;
}
if (event->modifiers & KEY_MOD_LEFT_ALT || event->modifiers & KEY_MOD_RIGHT_ALT) {
handle_input('\033');
}
if ((event->modifiers & KEY_MOD_LEFT_SHIFT || event->modifiers & KEY_MOD_RIGHT_SHIFT) &&
event->key == '\t') {
handle_input_s("\033[Z");
return;
}
handle_input(event->key);
} else {
if (event->action == KEY_ACTION_UP) return;
switch (event->keycode) {
case KEY_F1:
handle_input_s("\033OP");
break;
case KEY_F2:
handle_input_s("\033OQ");
break;
case KEY_F3:
handle_input_s("\033OR");
break;
case KEY_F4:
handle_input_s("\033OS");
break;
case KEY_F5:
handle_input_s("\033[15~");
break;
case KEY_F6:
handle_input_s("\033[17~");
break;
case KEY_F7:
handle_input_s("\033[18~");
break;
case KEY_F8:
handle_input_s("\033[19~");
break;
case KEY_F9:
handle_input_s("\033[20~");
break;
case KEY_F10:
handle_input_s("\033[21~");
break;
case KEY_F11:
handle_input_s("\033[23~");
break;
case KEY_F12:
/* Toggle decorations */
if (!_fullscreen) {
_no_frame = !_no_frame;
window_width = window->width - decor_width() * (!_no_frame);
window_height = window->height - (decor_height() + menu_bar_height) * (!_no_frame);
reinit(1);
}
break;
case KEY_ARROW_UP:
if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_CTRL) {
handle_input_s("\033[6A");
} else if (event->modifiers & KEY_MOD_LEFT_CTRL) {
handle_input_s("\033[5A");
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_ALT) {
handle_input_s("\033[4A");
} else if (event->modifiers & KEY_MOD_LEFT_ALT) {
handle_input_s("\033[3A");
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
handle_input_s("\033[2A");
} else {
handle_input_s("\033[A");
}
break;
case KEY_ARROW_DOWN:
if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_CTRL) {
handle_input_s("\033[6B");
} else if (event->modifiers & KEY_MOD_LEFT_CTRL) {
handle_input_s("\033[5B");
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_ALT) {
handle_input_s("\033[4B");
} else if (event->modifiers & KEY_MOD_LEFT_ALT) {
handle_input_s("\033[3B");
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
handle_input_s("\033[2B");
} else {
handle_input_s("\033[B");
}
break;
case KEY_ARROW_RIGHT:
if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_CTRL) {
handle_input_s("\033[6C");
} else if (event->modifiers & KEY_MOD_LEFT_CTRL) {
handle_input_s("\033[5C");
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_ALT) {
handle_input_s("\033[4C");
} else if (event->modifiers & KEY_MOD_LEFT_ALT) {
handle_input_s("\033[3C");
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
handle_input_s("\033[2C");
} else {
handle_input_s("\033[C");
}
break;
case KEY_ARROW_LEFT:
if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_CTRL) {
handle_input_s("\033[6D");
} else if (event->modifiers & KEY_MOD_LEFT_CTRL) {
handle_input_s("\033[5D");
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT && event->modifiers & KEY_MOD_LEFT_ALT) {
handle_input_s("\033[4D");
} else if (event->modifiers & KEY_MOD_LEFT_ALT) {
handle_input_s("\033[3D");
} else if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
handle_input_s("\033[2D");
} else {
handle_input_s("\033[D");
}
break;
case KEY_PAGE_UP:
if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
scroll_up(term_height/2);
} else {
handle_input_s("\033[5~");
}
break;
case KEY_PAGE_DOWN:
if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
scroll_down(term_height/2);
} else {
handle_input_s("\033[6~");
}
break;
case KEY_HOME:
if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
if (scrollback_list) {
scrollback_offset = scrollback_list->length;
redraw_scrollback();
}
} else {
handle_input_s("\033OH");
}
break;
case KEY_END:
if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
scrollback_offset = 0;
redraw_scrollback();
} else {
handle_input_s("\033OF");
}
break;
case KEY_DEL:
handle_input_s("\033[3~");
break;
case KEY_INSERT:
handle_input_s("\033[2~");
break;
}
}
}
void check_for_exit(void) {
if (exit_application) return;
pid_t pid = waitpid(-1, NULL, WNOHANG);
if (pid != child_pid) return;
/* Clean up */
exit_application = 1;
/* Exit */
char exit_message[] = "[Process terminated]\n";
write(fd_slave, exit_message, sizeof(exit_message));
}
void usage(char * argv[]) {
printf(
"Terminal Emulator\n"
"\n"
"usage: %s [-b] [-F] [-h]\n"
"\n"
" -F --fullscreen \033[3mRun in fullscreen (background) mode.\033[0m\n"
" -b --bitmap \033[3mUse the integrated bitmap font.\033[0m\n"
" -s --scale \033[3mScale the font in SDF mode by a given amount.\033[0m\n"
" -h --help \033[3mShow this help message.\033[0m\n"
" -x --grid \033[3mMake resizes round to nearest match for character cell size.\033[0m\n"
" -n --no-frame \033[3mDisable decorations.\033[0m\n"
"\n"
" This terminal emulator provides basic support for VT220 escapes and\n"
" XTerm extensions, including 256 color support and font effects.\n",
argv[0]);
}
term_callbacks_t term_callbacks = {
&term_write,
term_set_colors,
term_set_csr,
term_get_csr_x,
term_get_csr_y,
term_set_cell,
term_clear,
term_scroll,
term_redraw_cursor,
input_buffer_stuff,
set_term_font_size,
set_title,
term_set_cell_contents,
term_get_cell_width,
term_get_cell_height,
term_set_csr_show,
set_term_font_gamma,
set_term_font_mode,
};
void reinit(int send_sig) {
if (_use_sdf) {
char_width = 9;
char_height = 17;
font_size = 16;
if (scale_fonts) {
font_size *= font_scaling;
char_height *= font_scaling;
char_width *= font_scaling;
}
} else {
char_width = 9;
char_height = 20;
}
int old_width = term_width;
int old_height = term_height;
term_width = window_width / char_width;
term_height = window_height / char_height;
if (term_buffer) {
term_cell_t * new_term_buffer = malloc(sizeof(term_cell_t) * term_width * term_height);
memset(new_term_buffer, 0x0, sizeof(term_cell_t) * term_width * term_height);
int offset = 0;
if (term_height < old_height) {
while (csr_y >= term_height) {
offset++;
old_height--;
csr_y--;
}
}
for (int row = 0; row < min(old_height, term_height); ++row) {
for (int col = 0; col < min(old_width, term_width); ++col) {
term_cell_t * old_cell = (term_cell_t *)((uintptr_t)term_buffer + ((row + offset) * old_width + col) * sizeof(term_cell_t));
term_cell_t * new_cell = (term_cell_t *)((uintptr_t)new_term_buffer + (row * term_width + col) * sizeof(term_cell_t));
*new_cell = *old_cell;
}
}
if (csr_x >= term_width) {
csr_x = term_width-1;
}
free(term_buffer);
term_buffer = new_term_buffer;
} else {
term_buffer = malloc(sizeof(term_cell_t) * term_width * term_height);
memset(term_buffer, 0x0, sizeof(term_cell_t) * term_width * term_height);
}
int old_mouse_state = 0;
if (ansi_state) old_mouse_state = ansi_state->mouse_on;
ansi_state = ansi_init(ansi_state, term_width, term_height, &term_callbacks);
ansi_state->mouse_on = old_mouse_state;
draw_fill(ctx, rgba(0,0,0, TERM_DEFAULT_OPAC));
render_decors();
term_redraw_all();
display_flip();
struct winsize w;
w.ws_row = term_height;
w.ws_col = term_width;
w.ws_xpixel = term_width * char_width;
w.ws_ypixel = term_height * char_height;
ioctl(fd_master, TIOCSWINSZ, &w);
if (send_sig) {
kill(child_pid, SIGWINCH);
}
}
static void resize_finish(int width, int height) {
static int resize_attempts = 0;
int extra_x = 0;
int extra_y = 0;
if (!_no_frame) {
extra_x = decor_width();
extra_y = decor_height() + menu_bar_height;
}
int t_window_width = width - extra_x;
int t_window_height = height - extra_y;
if (t_window_width < char_width * 20 || t_window_height < char_height * 10) {
resize_attempts++;
int n_width = extra_x + max(char_width * 20, t_window_width);
int n_height = extra_y + max(char_height * 10, t_window_height);
yutani_window_resize_offer(yctx, window, n_width, n_height);
return;
}
if (!_free_size && ((t_window_width % char_width != 0 || t_window_height % char_height != 0) && resize_attempts < 3)) {
resize_attempts++;
int n_width = extra_x + t_window_width - (t_window_width % char_width);
int n_height = extra_y + t_window_height - (t_window_height % char_height);
yutani_window_resize_offer(yctx, window, n_width, n_height);
return;
}
resize_attempts = 0;
yutani_window_resize_accept(yctx, window, width, height);
window_width = window->width - extra_x;
window_height = window->height - extra_y;
reinit_graphics_yutani(ctx, window);
reinit(1);
yutani_window_resize_done(yctx, window);
yutani_flip(yctx, window);
}
void mouse_event(int button, int x, int y) {
char buf[7];
sprintf(buf, "\033[M%c%c%c", button + 32, x + 33, y + 33);
handle_input_s(buf);
}
void * handle_incoming(void) {
yutani_msg_t * m = yutani_poll(yctx);
while (m) {
menu_process_event(yctx, m);
switch (m->type) {
case YUTANI_MSG_KEY_EVENT:
{
struct yutani_msg_key_event * ke = (void*)m->data;
int ret = (ke->event.action == KEY_ACTION_DOWN) && (ke->event.key);
key_event(ret, &ke->event);
}
break;
case YUTANI_MSG_WINDOW_FOCUS_CHANGE:
{
struct yutani_msg_window_focus_change * wf = (void*)m->data;
yutani_window_t * win = hashmap_get(yctx->windows, (void*)wf->wid);
if (win) {
win->focused = wf->focused;
render_decors();
}
}
break;
case YUTANI_MSG_WINDOW_CLOSE:
{
struct yutani_msg_window_close * wc = (void*)m->data;
if (wc->wid == window->wid) {
kill(child_pid, SIGKILL);
exit_application = 1;
}
}
break;
case YUTANI_MSG_SESSION_END:
{
kill(child_pid, SIGKILL);
exit_application = 1;
}
break;
case YUTANI_MSG_RESIZE_OFFER:
{
struct yutani_msg_window_resize * wr = (void*)m->data;
resize_finish(wr->width, wr->height);
}
break;
case YUTANI_MSG_CLIPBOARD:
{
struct yutani_msg_clipboard * cb = (void *)m->data;
if (selection_text) {
free(selection_text);
}
if (*cb->content == '\002') {
int size = atoi(&cb->content[2]);
FILE * clipboard = yutani_open_clipboard(yctx);
selection_text = malloc(size + 1);
fread(selection_text, 1, size, clipboard);
selection_text[size] = '\0';
fclose(clipboard);
} else {
selection_text = malloc(cb->size+1);
memcpy(selection_text, cb->content, cb->size);
selection_text[cb->size] = '\0';
}
handle_input_s(selection_text);
}
break;
case YUTANI_MSG_WINDOW_MOUSE_EVENT:
{
struct yutani_msg_window_mouse_event * me = (void*)m->data;
if (me->wid != window->wid) break;
if (!_no_frame) {
int decor_response = decor_handle_event(yctx, m);
switch (decor_response) {
case DECOR_CLOSE:
kill(child_pid, SIGKILL);
exit_application = 1;
break;
case DECOR_RIGHT:
/* right click in decoration, show appropriate menu */
decor_show_default_menu(window, window->x + me->new_x, window->y + me->new_y);
break;
default:
break;
}
menu_bar_mouse_event(yctx, window, &terminal_menu_bar, me, me->new_x, me->new_y);
}
if (!_no_frame) {
if (me->new_x < 0 || me->new_x >= (int)window_width + (int)decor_width() || me->new_y < 0 || me->new_y >= (int)window_height + (int)decor_height()) {
break;
}
if (me->new_y < (int)decor_top_height+menu_bar_height || me->new_y >= (int)(window_height + decor_top_height+menu_bar_height)) {
break;
}
if (me->new_x < (int)decor_left_width || me->new_y >= (int)(window_width + decor_left_width)) {
break;
}
} else {
if (me->new_x < 0 || me->new_x >= (int)window_width || me->new_y < 0 || me->new_y >= (int)window_height) {
break;
}
}
int new_x = me->new_x;
int new_y = me->new_y;
if (!_no_frame) {
new_x -= decor_left_width;
new_y -= decor_top_height+menu_bar_height;
}
/* Convert from coordinate to cell positon */
new_x /= char_width;
new_y /= char_height;
if (new_x < 0 || new_y < 0) break;
if (new_x > term_width || new_y > term_height) break;
/* Map Cursor Action */
if (ansi_state->mouse_on) {
if (me->buttons & YUTANI_MOUSE_SCROLL_UP) {
mouse_event(32+32, new_x, new_y);
} else if (me->buttons & YUTANI_MOUSE_SCROLL_DOWN) {
mouse_event(32+32+1, new_x, new_y);
}
if (me->buttons != button_state) {
/* Figure out what changed */
if (me->buttons & YUTANI_MOUSE_BUTTON_LEFT && !(button_state & YUTANI_MOUSE_BUTTON_LEFT)) mouse_event(0, new_x, new_y);
if (me->buttons & YUTANI_MOUSE_BUTTON_MIDDLE && !(button_state & YUTANI_MOUSE_BUTTON_MIDDLE)) mouse_event(1, new_x, new_y);
if (me->buttons & YUTANI_MOUSE_BUTTON_RIGHT && !(button_state & YUTANI_MOUSE_BUTTON_RIGHT)) mouse_event(2, new_x, new_y);
if (!(me->buttons & YUTANI_MOUSE_BUTTON_LEFT) && button_state & YUTANI_MOUSE_BUTTON_LEFT) mouse_event(3, new_x, new_y);
if (!(me->buttons & YUTANI_MOUSE_BUTTON_MIDDLE) && button_state & YUTANI_MOUSE_BUTTON_MIDDLE) mouse_event(3, new_x, new_y);
if (!(me->buttons & YUTANI_MOUSE_BUTTON_RIGHT) && button_state & YUTANI_MOUSE_BUTTON_RIGHT) mouse_event(3, new_x, new_y);
last_mouse_x = new_x;
last_mouse_y = new_y;
button_state = me->buttons;
} else if (ansi_state->mouse_on == 2) {
/* Report motion for pressed buttons */
if (last_mouse_x == new_x && last_mouse_y == new_y) break;
if (button_state & YUTANI_MOUSE_BUTTON_LEFT) mouse_event(32, new_x, new_y);
if (button_state & YUTANI_MOUSE_BUTTON_MIDDLE) mouse_event(33, new_x, new_y);
if (button_state & YUTANI_MOUSE_BUTTON_RIGHT) mouse_event(34, new_x, new_y);
last_mouse_x = new_x;
last_mouse_y = new_y;
}
} else {
if (me->command == YUTANI_MOUSE_EVENT_DOWN && me->buttons & YUTANI_MOUSE_BUTTON_LEFT) {
term_redraw_all();
selection_start_x = new_x;
selection_start_y = new_y;
selection_end_x = new_x;
selection_end_y = new_y;
selection = 1;
redraw_selection();
display_flip();
}
if (me->command == YUTANI_MOUSE_EVENT_DRAG && me->buttons & YUTANI_MOUSE_BUTTON_LEFT ){
unredraw_selection();
selection_end_x = new_x;
selection_end_y = new_y;
redraw_selection();
display_flip();
}
if (me->command == YUTANI_MOUSE_EVENT_RAISE) {
if (me->new_x == me->old_x && me->new_y == me->old_y) {
selection = 0;
term_redraw_all();
display_flip();
} /* else selection */
}
if (me->buttons & YUTANI_MOUSE_SCROLL_UP) {
scroll_up(5);
} else if (me->buttons & YUTANI_MOUSE_SCROLL_DOWN) {
scroll_down(5);
} else if (me->buttons & YUTANI_MOUSE_BUTTON_RIGHT) {
if (!menu_right_click->window) {
menu_show(menu_right_click, yctx);
if (window->x + me->new_x + menu_right_click->window->width > yctx->display_width) {
yutani_window_move(yctx, menu_right_click->window, window->x + me->new_x - menu_right_click->window->width, window->y + me->new_y);
} else {
yutani_window_move(yctx, menu_right_click->window, window->x + me->new_x, window->y + me->new_y);
}
}
}
}
}
break;
default:
break;
}
free(m);
m = yutani_poll_async(yctx);
}
return NULL;
}
void _menu_action_exit(struct MenuEntry * self) {
kill(child_pid, SIGKILL);
exit_application = 1;
}
void _menu_action_hide_borders(struct MenuEntry * self) {
_no_frame = !(_no_frame);
window_width = window->width - decor_width() * (!_no_frame);
window_height = window->height - (decor_height() + menu_bar_height) * (!_no_frame);
reinit(1);
}
void _menu_action_show_about(struct MenuEntry * self) {
if (!fork()) {
char about_cmd[1024] = "\0";
strcat(about_cmd, "about \"About Terminal\" /usr/share/icons/48/utilities-terminal.bmp \"ToaruOS Terminal\" \"(C) 2013-2018 K. Lange\n-\nPart of ToaruOS, which is free software\nreleased under the NCSA/University of Illinois\nlicense.\n-\n%https://toaruos.org\n%https://gitlab.com/toaruos\" ");
char coords[100];
sprintf(coords, "%d %d", (int)window->x + (int)window->width / 2, (int)window->y + (int)window->height / 2);
strcat(about_cmd, coords);
system(about_cmd);
exit(0);
}
render_decors();
}
void _menu_action_show_help(struct MenuEntry * self) {
if (!fork()) {
system("help-browser terminal.trt");
exit(0);
}
render_decors();
}
void _menu_action_copy(struct MenuEntry * self) {
copy_selection();
}
void _menu_action_paste(struct MenuEntry * self) {
yutani_special_request(yctx, NULL, YUTANI_SPECIAL_REQUEST_CLIPBOARD);
}
void _menu_action_set_scale(struct MenuEntry * self) {
struct MenuEntry_Normal * _self = (struct MenuEntry_Normal *)self;
if (!_self->action) {
scale_fonts = 0;
font_scaling = 1.0;
} else {
scale_fonts = 1;
font_scaling = atof(_self->action);
}
reinit(1);
}
void maybe_flip_cursor(void) {
uint64_t ticks = get_ticks();
if (ticks > mouse_ticks + 600000LL) {
mouse_ticks = ticks;
flip_cursor();
}
}
int main(int argc, char ** argv) {
_login_shell = 0;
_fullscreen = 0;
_no_frame = 0;
window_width = char_width * 80;
window_height = char_height * 24;
static struct option long_opts[] = {
{"fullscreen", no_argument, 0, 'F'},
{"bitmap", no_argument, 0, 'b'},
{"scale", required_argument, 0, 's'},
{"login", no_argument, 0, 'l'},
{"help", no_argument, 0, 'h'},
{"kernel", no_argument, 0, 'k'},
{"grid", no_argument, 0, 'x'},
{"no-frame", no_argument, 0, 'n'},
{"geometry", required_argument, 0, 'g'},
{0,0,0,0}
};
/* Read some arguments */
int index, c;
while ((c = getopt_long(argc, argv, "bhxnFlks:g:", long_opts, &index)) != -1) {
if (!c) {
if (long_opts[index].flag == 0) {
c = long_opts[index].val;
}
}
switch (c) {
case 'k':
_force_kernel = 1;
break;
case 'x':
_free_size = 0;
break;
case 'l':
_login_shell = 1;
break;
case 'n':
_no_frame = 1;
break;
case 'F':
_fullscreen = 1;
_no_frame = 1;
break;
case 'b':
_use_sdf = 0;
break;
case 'h':
usage(argv);
return 0;
break;
case 's':
scale_fonts = 1;
font_scaling = atof(optarg);
break;
case 'g':
{
char * c = strstr(optarg, "x");
if (c) {
*c = '\0';
c++;
window_width = atoi(optarg);
window_height = atoi(c);
}
}
break;
case '?':
break;
default:
break;
}
}
// XXX
putenv("TERM=toaru");
/* Initialize the windowing library */
yctx = yutani_init();
if (_fullscreen) {
window_width = yctx->display_width;
window_height = yctx->display_height;
}
if (_no_frame) {
window = yutani_window_create(yctx, window_width, window_height);
} else {
init_decorations();
window = yutani_window_create(yctx, window_width + decor_left_width + decor_right_width, window_height + decor_top_height+menu_bar_height + decor_bottom_height);
}
if (_fullscreen) {
yutani_set_stack(yctx, window, YUTANI_ZORDER_BOTTOM);
window->focused = 1;
} else {
window->focused = 0;
}
/* Set up menus */
terminal_menu_bar.entries = terminal_menu_entries;
terminal_menu_bar.redraw_callback = render_decors;
struct MenuEntry * _menu_exit = menu_create_normal("exit","exit","Exit", _menu_action_exit);
struct MenuEntry * _menu_copy = menu_create_normal(NULL, NULL, "Copy", _menu_action_copy);
struct MenuEntry * _menu_paste = menu_create_normal(NULL, NULL, "Paste", _menu_action_paste);
menu_right_click = menu_create();
menu_insert(menu_right_click, _menu_copy);
menu_insert(menu_right_click, _menu_paste);
menu_insert(menu_right_click, menu_create_separator());
menu_insert(menu_right_click, menu_create_normal(NULL, NULL, "Toggle borders", _menu_action_hide_borders));
menu_insert(menu_right_click, menu_create_separator());
menu_insert(menu_right_click, _menu_exit);
/* Menu Bar menus */
terminal_menu_bar.set = menu_set_create();
struct MenuList * m;
m = menu_create(); /* File */
menu_insert(m, _menu_exit);
menu_set_insert(terminal_menu_bar.set, "file", m);
m = menu_create();
menu_insert(m, _menu_copy);
menu_insert(m, _menu_paste);
menu_set_insert(terminal_menu_bar.set, "edit", m);
m = menu_create();
menu_insert(m, menu_create_normal(NULL, "0.75", "75%", _menu_action_set_scale));
menu_insert(m, menu_create_normal(NULL, NULL, "100%", _menu_action_set_scale));
menu_insert(m, menu_create_normal(NULL, "1.5", "150%", _menu_action_set_scale));
menu_insert(m, menu_create_normal(NULL, "2.0", "200%", _menu_action_set_scale));
menu_set_insert(terminal_menu_bar.set, "zoom", m);
m = menu_create();
menu_insert(m, menu_create_normal(NULL, NULL, "Hide borders", _menu_action_hide_borders));
menu_insert(m, menu_create_submenu(NULL,"zoom","Set zoom..."));
menu_set_insert(terminal_menu_bar.set, "view", m);
m = menu_create();
menu_insert(m, menu_create_normal("help","help","Contents", _menu_action_show_help));
menu_insert(m, menu_create_separator());
menu_insert(m, menu_create_normal("star","star","About Terminal", _menu_action_show_about));
menu_set_insert(terminal_menu_bar.set, "help", m);
/* Initialize the graphics context */
ctx = init_graphics_yutani_double_buffer(window);
/* Clear to black */
draw_fill(ctx, rgba(0,0,0,0));
yutani_window_move(yctx, window, yctx->display_width / 2 - window->width / 2, yctx->display_height / 2 - window->height / 2);
syscall_openpty(&fd_master, &fd_slave, NULL, NULL, NULL);
terminal = fdopen(fd_slave, "w");
reinit(0);
fflush(stdin);
pid_t pid = getpid();
pid_t f = fork();
if (getpid() != pid) {
dup2(fd_slave, 0);
dup2(fd_slave, 1);
dup2(fd_slave, 2);
if (argv[optind] != NULL) {
char * tokens[] = {argv[optind], NULL};
execvp(tokens[0], tokens);
fprintf(stderr, "Failed to launch requested startup application.\n");
} else {
if (_login_shell) {
char * tokens[] = {"/bin/login",NULL};
execvp(tokens[0], tokens);
exit(1);
} else {
char * shell = getenv("SHELL");
if (!shell) shell = "/bin/sh"; /* fallback */
char * tokens[] = {shell,NULL};
execvp(tokens[0], tokens);
exit(1);
}
}
exit_application = 1;
return 1;
} else {
if (_force_kernel) {
/* Request kernel output to this terminal */
//syscall_system_function(4, (char **)fd_slave);
}
child_pid = f;
int fds[2] = {fileno(yctx->sock), fd_master};
unsigned char buf[1024];
while (!exit_application) {
int index = syscall_fswait2(2,fds,200);
check_for_exit();
if (index == 1) {
maybe_flip_cursor();
int r = read(fd_master, buf, 1024);
for (int i = 0; i < r; ++i) {
ansi_put(ansi_state, buf[i]);
}
display_flip();
} else if (index == 0) {
maybe_flip_cursor();
handle_incoming();
} else if (index == 2) {
maybe_flip_cursor();
}
}
}
//yutani_close(yctx, window);
return 0;
}