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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 <string.h>
- #include <stdlib.h>
- #include <signal.h>
- #include <time.h>
- #include <unistd.h>
- #include <fcntl.h>
- #include <getopt.h>
- #include <errno.h>
- #include <pty.h>
- #include <wchar.h>
- #include <dlfcn.h>
- #include <sys/stat.h>
- #include <sys/ioctl.h>
- #include <sys/wait.h>
- #include <sys/time.h>
- #include <sys/fswait.h>
- #define TRACE_APP_NAME "terminal"
- #include <toaru/trace.h>
- #include <toaru/decodeutf8.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>
- /* 16- and 256-color palette */
- #include "terminal-palette.h"
- /* Bitmap font */
- #include "terminal-font.h"
- /* Show help text */
- static void usage(char * argv[]) {
- printf(
- "Terminal Emulator\n"
- "\n"
- "usage: %s [-Fbxn] [-s SCALE] [-g WIDTHxHEIGHT] [COMMAND...]\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 antialiased 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"
- " -g --geometry \033[3mSet requested terminal size WIDTHxHEIGHT\033[0m\n"
- " -f --no-ft \033[3mForce disable the freetype backend.\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]);
- }
- /* master and slave pty descriptors */
- static int fd_master, fd_slave;
- static FILE * terminal;
- static pid_t child_pid = 0;
- static int scale_fonts = 0; /* Whether fonts should be scaled */
- static float font_scaling = 1.0; /* How much they should be scaled by */
- static float font_gamma = 1.7; /* Gamma to use for SDF library */
- static uint16_t term_width = 0; /* Width of the terminal (in cells) */
- static uint16_t term_height = 0; /* Height of the terminal (in cells) */
- static uint16_t font_size = 16; /* Font size according to SDF library */
- static uint16_t char_width = 9; /* Width of a cell in pixels */
- static uint16_t char_height = 17; /* Height of a cell in pixels */
- static uint16_t char_offset = 0; /* Offset of the font within the cell */
- static int csr_x = 0; /* Cursor X */
- static int csr_y = 0; /* Cursor Y */
- static uint32_t current_fg = 7; /* Current foreground color */
- static uint32_t current_bg = 0; /* Current background color */
- static term_cell_t * term_buffer = NULL; /* The terminal cell buffer */
- static term_cell_t * term_buffer_a = NULL;
- static term_cell_t * term_buffer_b = NULL;
- static term_state_t * ansi_state = NULL; /* ANSI parser library state */
- static int active_buffer = 0;
- static int _orig_x = 0;
- static int _orig_y = 0;
- static uint32_t _orig_fg = 7;
- static uint32_t _orig_bg = 0;
- static bool cursor_on = 1; /* Whether or not the cursor should be rendered */
- static bool _fullscreen = 0; /* Whether or not we are running in fullscreen mode (GUI only) */
- static bool _no_frame = 0; /* Whether to disable decorations or not */
- static bool _use_aa = 1; /* Whether or not to use best-available anti-aliased renderer */
- static bool _have_freetype = 0; /* Whether freetype is available */
- static bool _force_no_ft = 0; /* Whether to force disable the freetype backend */
- static bool _free_size = 1; /* Disable rounding when resized */
- /** Freetype extension renderer functions */
- static void (*freetype_set_font_face)(int face) = NULL;
- static void (*freetype_set_font_size)(int size) = NULL;
- static void (*freetype_draw_char)(gfx_context_t * ctx, int x, int y, uint32_t fg, uint32_t codepoint) = NULL;
- static list_t * images_list = NULL;
- static int menu_bar_height = 24;
- /* Text selection information */
- static int selection = 0;
- static int selection_start_x = 0;
- static int selection_start_y = 0;
- static int selection_end_x = 0;
- static int selection_end_y = 0;
- static char * selection_text = NULL;
- static int _selection_count = 0;
- static int _selection_i = 0;
- /* Mouse state */
- static int last_mouse_x = -1;
- static int last_mouse_y = -1;
- static int button_state = 0;
- static unsigned long long mouse_ticks = 0;
- static yutani_window_t * window = NULL; /* GUI window */
- static yutani_t * yctx = NULL;
- /* Window flip bounds */
- static int32_t l_x = INT32_MAX;
- static int32_t l_y = INT32_MAX;
- static int32_t r_x = -1;
- static int32_t r_y = -1;
- static uint32_t window_width = 640;
- static uint32_t window_height = 480;
- #define TERMINAL_TITLE_SIZE 512
- static char terminal_title[TERMINAL_TITLE_SIZE];
- static size_t terminal_title_length = 0;
- static gfx_context_t * ctx;
- static struct MenuList * menu_right_click = NULL;
- static void render_decors(void);
- static void term_clear();
- static void reinit(void);
- static void term_redraw_cursor();
- static int decor_left_width = 0;
- static int decor_top_height = 0;
- static int decor_right_width = 0;
- static int decor_bottom_height = 0;
- static int decor_width = 0;
- static int decor_height = 0;
- struct scrollback_row {
- unsigned short width;
- term_cell_t cells[];
- };
- #define MAX_SCROLLBACK 10240
- static list_t * scrollback_list = NULL;
- static int scrollback_offset = 0;
- /* Menu bar entries */
- struct menu_bar terminal_menu_bar = {0};
- struct menu_bar_entries terminal_menu_entries[] = {
- {"File", "file"},
- {"Edit", "edit"},
- {"View", "view"},
- {"Help", "help"},
- {NULL, NULL},
- };
- /* Trigger to exit the terminal when the child process dies or
- * we otherwise receive an exit signal */
- static 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 void cell_redraw_offset(uint16_t x, uint16_t y);
- static void cell_redraw_offset_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;
- }
- }
- /* Returns the lower of two shorts */
- static int32_t min(int32_t a, int32_t b) {
- return (a < b) ? a : b;
- }
- /* Returns the higher of two shorts */
- static int32_t max(int32_t a, int32_t b) {
- return (a > b) ? a : b;
- }
- /*
- * Convert codepoint to UTF-8
- *
- * Returns length of byte sequence written.
- */
- 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);
- }
- /* Set the terminal title string */
- static 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();
- }
- /* Call a function for each selected cell */
- static 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);
- }
- }
- }
- /* Redraw the selection with the selection hint (inversion) */
- static void redraw_selection(void) {
- iterate_selection(cell_redraw_offset_inverted);
- }
- static void redraw_new_selection(int old_x, int old_y) {
- if (selection_end_y == selection_start_y && old_y != selection_start_y) {
- int a, b;
- a = selection_end_x;
- b = selection_end_y;
- selection_end_x = old_x;
- selection_end_y = old_y;
- iterate_selection(cell_redraw_offset);
- selection_end_x = a;
- selection_end_y = b;
- iterate_selection(cell_redraw_offset_inverted);
- } else {
- int a, b;
- a = selection_start_x;
- b = selection_start_y;
- selection_start_x = old_x;
- selection_start_y = old_y;
- /* Figure out direction */
- if (old_y < b) {
- /* Backwards */
- if (selection_end_y < old_y || (selection_end_y == old_y && selection_end_x < old_x)) {
- /* Selection extended */
- iterate_selection(cell_redraw_offset_inverted);
- } else {
- /* Selection got smaller */
- iterate_selection(cell_redraw_offset);
- }
- } else if (old_y == b) {
- /* Was a single line */
- if (selection_end_y == b) {
- /* And still is */
- if (old_x < a) {
- /* Backwards */
- if (selection_end_x < old_x) {
- iterate_selection(cell_redraw_offset_inverted);
- } else {
- iterate_selection(cell_redraw_offset);
- }
- } else {
- if (selection_end_x < old_x) {
- iterate_selection(cell_redraw_offset);
- } else {
- iterate_selection(cell_redraw_offset_inverted);
- }
- }
- } else if (selection_end_y < b) {
- /* Moved up */
- if (old_x <= a) {
- /* Should be fine with just append */
- iterate_selection(cell_redraw_offset_inverted);
- } else {
- /* Need to erase first */
- iterate_selection(cell_redraw_offset);
- selection_start_x = a;
- selection_start_y = b;
- iterate_selection(cell_redraw_offset_inverted);
- }
- } else if (selection_end_y > b) {
- if (old_x >= a) {
- /* Should be fine with just append */
- iterate_selection(cell_redraw_offset_inverted);
- } else {
- /* Need to erase first */
- iterate_selection(cell_redraw_offset);
- selection_start_x = a;
- selection_start_y = b;
- iterate_selection(cell_redraw_offset_inverted);
- }
- }
- } else {
- /* Forward */
- if (selection_end_y < old_y || (selection_end_y == old_y && selection_end_x < old_x)) {
- /* Selection got smaller */
- iterate_selection(cell_redraw_offset);
- } else {
- /* Selection extended */
- iterate_selection(cell_redraw_offset_inverted);
- }
- }
- cell_redraw_offset_inverted(a,b);
- cell_redraw_offset_inverted(selection_end_x, selection_end_y);
- /* Restore */
- selection_start_x = a;
- selection_start_y = b;
- }
- }
- /* Figure out how long the UTF-8 selection string should be. */
- static void count_selection(uint16_t x, uint16_t _y) {
- int y = _y;
- y -= scrollback_offset;
- if (y >= 0) {
- 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);
- }
- }
- } else {
- node_t * node = scrollback_list->tail;
- for (; y < -1; y++) {
- if (!node) break;
- node = node->prev;
- }
- if (node) {
- struct scrollback_row * row = (struct scrollback_row *)node->value;
- if (row && x < row->width) {
- term_cell_t * cell = &row->cells[x];
- if (cell && ((uint32_t *)cell)[0] != 0x00000000) {
- char tmp[7];
- _selection_count += to_eight(cell->c, tmp);
- }
- }
- }
- }
- if (x == term_width - 1) {
- _selection_count++;
- }
- }
- /* Fill the selection text buffer with the selected text. */
- void write_selection(uint16_t x, uint16_t _y) {
- int y = _y;
- y -= scrollback_offset;
- if (y >= 0) {
- 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++;
- }
- }
- }
- } else {
- node_t * node = scrollback_list->tail;
- for (; y < -1; y++) {
- if (!node) break;
- node = node->prev;
- }
- if (node) {
- struct scrollback_row * row = (struct scrollback_row *)node->value;
- if (row && x < row->width) {
- term_cell_t * cell = &row->cells[x];
- if (cell && ((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++;
- }
- }
- /* Copy the selection text to the clipboard. */
- static 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. */
- static void input_buffer_stuff(char * str) {
- size_t s = strlen(str) + 1;
- write(fd_master, str, s);
- }
- /* Redraw the decorations */
- static void render_decors(void) {
- /* Don't draw decorations or bother advertising the window if in "fullscreen mode" */
- if (_fullscreen) return;
- if (!_no_frame) {
- /* Draw the decorations */
- render_decorations(window, ctx, terminal_title_length ? terminal_title : "Terminal");
- /* Update menu bar position and size */
- 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;
- /* Redraw the menu bar */
- menu_bar_render(&terminal_menu_bar, ctx);
- }
- /* Advertise the window icon to the panel. */
- yutani_window_advertise_icon(yctx, window, terminal_title_length ? terminal_title : "Terminal", "utilities-terminal");
- /*
- * Flip the whole window
- * We do this regardless of whether we drew decorations to catch
- * a case where decorations are toggled.
- */
- l_x = 0; l_y = 0;
- r_x = window->width;
- r_y = window->height;
- display_flip();
- }
- /* Set a pixel in the terminal cell area */
- static inline void term_set_point(uint16_t x, uint16_t y, uint32_t color ) {
- if (_fullscreen) {
- /* In full screen mode, pre-blend the color over black. */
- 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;
- }
- }
- /* Draw a partial block character. */
- static 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);
- }
- }
- }
- /* Convert unicode codepoint to fallback codepage codepoint */
- static 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'ⁿ': return 252;
- case L'²': return 253;
- case L'■': return 254;
- }
- return 4;
- }
- /* Write a character to the window. */
- static 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;
- /* Select foreground color from palette. */
- if (fg < PALETTE_COLORS) {
- _fg = term_colors[fg];
- _fg |= 0xFF << 24;
- } else {
- _fg = fg;
- }
- /* Select background color from aplette. */
- if (bg < PALETTE_COLORS) {
- _bg = term_colors[bg];
- if (flags & ANSI_SPECBG) {
- _bg |= 0xFF << 24;
- } else {
- _bg |= TERM_DEFAULT_OPAC << 24;
- }
- } else {
- _bg = bg;
- }
- /* Draw block characters */
- 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;
- }
- /* Draw glyphs */
- if (_use_aa && !_have_freetype) {
- /* Convert other unicode characters. */
- if (val > 128) {
- val = ununicode(val);
- }
- /* Draw using the Toaru SDF rendering library */
- 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 if (_use_aa && _have_freetype) {
- /* Draw using freetype extension */
- if (val == 0xFFFF) { return; } /* Unicode, do not redraw here */
- 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 (flags & ANSI_WIDE) {
- for (uint8_t i = 0; i < char_height; ++i) {
- for (uint8_t j = char_width; j < 2 * char_width; ++j) {
- term_set_point(x+j,y+i,_bg);
- }
- }
- }
- if (val < 32 || val == ' ') {
- goto _extra_stuff;
- }
- #define FONT_MONOSPACE 4
- #define FONT_MONOSPACE_BOLD 5
- #define FONT_MONOSPACE_ITALIC 6
- #define FONT_MONOSPACE_BOLD_ITALIC 7
- int _font = FONT_MONOSPACE;
- if (flags & ANSI_BOLD && flags & ANSI_ITALIC) {
- _font = FONT_MONOSPACE_BOLD_ITALIC;
- } else if (flags & ANSI_ITALIC) {
- _font = FONT_MONOSPACE_ITALIC;
- } else if (flags & ANSI_BOLD) {
- _font = FONT_MONOSPACE_BOLD;
- }
- freetype_set_font_face(_font);
- freetype_set_font_size(font_size);
- if (_no_frame) {
- freetype_draw_char(ctx, x, y + char_offset, _fg, val);
- } else {
- freetype_draw_char(ctx, x + decor_left_width, y + char_offset + decor_top_height + menu_bar_height, _fg, val);
- }
- } else {
- /* Convert other unicode characters. */
- if (val > 128) {
- val = ununicode(val);
- }
- /* Draw using the bitmap font. */
- 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);
- }
- }
- }
- }
- /* Draw additional text elements, like underlines and cross-outs. */
- _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);
- }
- }
- /* Calculate the bounds of the updated region of the window */
- 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);
- }
- }
- }
- /* Set a terminal cell */
- static void cell_set(uint16_t x, uint16_t y, uint32_t c, uint32_t fg, uint32_t bg, uint32_t flags) {
- /* Avoid setting cells out of range. */
- if (x >= term_width || y >= term_height) return;
- /* Calculate the cell position in the terminal buffer */
- term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
- /* Set cell attributes */
- cell->c = c;
- cell->fg = fg;
- cell->bg = bg;
- cell->flags = flags;
- }
- /* Redraw an embedded image cell */
- static void redraw_cell_image(uint16_t x, uint16_t y, term_cell_t * cell) {
- /* Avoid setting cells out of range. */
- if (x >= term_width || y >= term_height) return;
- /* Draw the image data */
- 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++;
- }
- }
- /* Update bounds */
- 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_offset(uint16_t x, uint16_t _y) {
- int y = _y;
- int i = y;
- y -= scrollback_offset;
- if (y >= 0) {
- 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); return; }
- 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);
- }
- } else {
- node_t * node = scrollback_list->tail;
- for (; y < -1; y++) {
- if (!node) break;
- node = node->prev;
- }
- if (node) {
- struct scrollback_row * row = (struct scrollback_row *)node->value;
- if (row && x < row->width) {
- term_cell_t * cell = &row->cells[x];
- if (!cell || ((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);
- }
- } else {
- term_write_char(' ', x * char_width, i * char_height, TERM_DEFAULT_FG, TERM_DEFAULT_BG, TERM_DEFAULT_FLAGS);
- }
- }
- }
- }
- static void cell_redraw_offset_inverted(uint16_t x, uint16_t _y) {
- int y = _y;
- int i = y;
- y -= scrollback_offset;
- if (y >= 0) {
- 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); return; }
- if (((uint32_t *)cell)[0] == 0x00000000) {
- term_write_char(' ', x * char_width, i * char_height, TERM_DEFAULT_BG, TERM_DEFAULT_FG, TERM_DEFAULT_FLAGS|ANSI_SPECBG);
- } else {
- term_write_char(cell->c, x * char_width, i * char_height, cell->bg, cell->fg, cell->flags);
- }
- } else {
- node_t * node = scrollback_list->tail;
- for (; y < -1; y++) {
- if (!node) break;
- node = node->prev;
- }
- if (node) {
- struct scrollback_row * row = (struct scrollback_row *)node->value;
- if (row && x < row->width) {
- term_cell_t * cell = &row->cells[x];
- if (!cell || ((uint32_t *)cell)[0] == 0x00000000) {
- term_write_char(' ', x * char_width, i * char_height, TERM_DEFAULT_BG, TERM_DEFAULT_FG, TERM_DEFAULT_FLAGS);
- } else {
- term_write_char(cell->c, x * char_width, i * char_height, cell->bg, cell->fg, cell->flags);
- }
- } else {
- term_write_char(' ', x * char_width, i * char_height, TERM_DEFAULT_BG, TERM_DEFAULT_FG, TERM_DEFAULT_FLAGS);
- }
- }
- }
- }
- /* Redraw a text cell normally. */
- static void cell_redraw(uint16_t x, uint16_t y) {
- /* Avoid cells out of range. */
- if (x >= term_width || y >= term_height) return;
- /* Calculate the cell position in the terminal buffer */
- term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
- /* If it's an image cell, redraw the image data. */
- if (cell->flags & ANSI_EXT_IMG) {
- redraw_cell_image(x,y,cell);
- return;
- }
- /* Special case empty cells. */
- 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);
- }
- }
- /* Redraw text cell inverted. */
- static void cell_redraw_inverted(uint16_t x, uint16_t y) {
- /* Avoid cells out of range. */
- if (x >= term_width || y >= term_height) return;
- /* Calculate the cell position in the terminal buffer */
- term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
- /* If it's an image cell, redraw the image data. */
- if (cell->flags & ANSI_EXT_IMG) {
- redraw_cell_image(x,y,cell);
- return;
- }
- /* Special case empty cells. */
- 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);
- }
- }
- /* Redraw text cell with a surrounding box (used by cursor) */
- static void cell_redraw_box(uint16_t x, uint16_t y) {
- /* Avoid cells out of range. */
- if (x >= term_width || y >= term_height) return;
- /* Calculate the cell position in the terminal buffer */
- term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (y * term_width + x) * sizeof(term_cell_t));
- /* If it's an image cell, redraw the image data. */
- if (cell->flags & ANSI_EXT_IMG) {
- redraw_cell_image(x,y,cell);
- return;
- }
- /* Special case empty cells. */
- 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);
- }
- }
- /* Draw the cursor cell */
- static void render_cursor() {
- if (!window->focused) {
- /* An unfocused terminal should draw an unfilled box. */
- cell_redraw_box(csr_x, csr_y);
- } else {
- /* A focused terminal draws a solid box. */
- cell_redraw_inverted(csr_x, csr_y);
- }
- }
- static uint8_t cursor_flipped = 0;
- /* A soft request to draw the cursor. */
- static void draw_cursor() {
- if (!cursor_on) return;
- mouse_ticks = get_ticks();
- cursor_flipped = 0;
- render_cursor();
- }
- /* Timer callback to flip (flash) the cursor */
- static void maybe_flip_cursor(void) {
- uint64_t ticks = get_ticks();
- if (ticks > mouse_ticks + 600000LL) {
- mouse_ticks = ticks;
- 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;
- }
- }
- /* Draw all cells. Duplicates code from cell_redraw to avoid unecessary bounds checks. */
- static void term_redraw_all() {
- for (int i = 0; i < term_height; i++) {
- for (int x = 0; x < term_width; ++x) {
- /* Calculate the cell position in the terminal buffer */
- term_cell_t * cell = (term_cell_t *)((uintptr_t)term_buffer + (i * term_width + x) * sizeof(term_cell_t));
- /* If it's an image cell, redraw the image data. */
- if (cell->flags & ANSI_EXT_IMG) {
- redraw_cell_image(x,i,cell);
- continue;
- }
- /* Special case empty cells. */
- 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);
- }
- }
- }
- }
- /* Remove no-longer-visible image cell data. */
- static void flush_unused_images(void) {
- 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;
- }
- /* Scroll the terminal up or down. */
- static void term_scroll(int how_much) {
- /* A large scroll request should just clear the screen. */
- if (how_much >= term_height || -how_much >= term_height) {
- term_clear();
- return;
- }
- /* A request to scroll 0... is a request not to scroll. */
- if (how_much == 0) {
- return;
- }
- /* Redraw the cursor before continuing. */
- cell_redraw(csr_x, csr_y);
- if (how_much > 0) {
- /* Scroll 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;
- /* Scroll down */
- 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);
- }
- }
- }
- /* Remove image data for image cells that are no longer on screen. */
- flush_unused_images();
- /* Flip the entire window. */
- yutani_flip(yctx, window);
- }
- /* Is this a wide character? (does wcwidth == 2) */
- static int is_wide(uint32_t codepoint) {
- if (codepoint < 256) return 0;
- return wcwidth(codepoint) == 2;
- }
- /* Save the row that is about to be scrolled offscreen into the scrollback buffer. */
- static void save_scrollback(void) {
- /* If the scrollback is already full, remove the oldest element. */
- 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);
- }
- /* Draw the scrollback. */
- static void redraw_scrollback(void) {
- 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();
- }
- /*
- * ANSI callback for writing characters.
- * Parses some things (\n\r, etc.) itself that should probably
- * be moved into the ANSI library.
- */
- static 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;
- draw_cursor();
- 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 (c == '\n') return;
- }
- if (csr_y == term_height) {
- save_scrollback();
- term_scroll(1);
- csr_y = term_height - 1;
- }
- if (c == '\n') {
- ++csr_y;
- if (csr_y == term_height) {
- save_scrollback();
- term_scroll(1);
- csr_y = term_height - 1;
- }
- draw_cursor();
- } else if (c == '\007') {
- /* bell */
- /* XXX play sound */
- } 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();
- }
- /* ANSI callback to set cursor position */
- static void term_set_csr(int x, int y) {
- cell_redraw(csr_x,csr_y);
- csr_x = x;
- csr_y = y;
- draw_cursor();
- }
- /* ANSI callback to get cursor x position */
- static int term_get_csr_x(void) {
- return csr_x;
- }
- /* ANSI callback to get cursor y position */
- static int term_get_csr_y(void) {
- return csr_y;
- }
- /* ANSI callback to set cell image data. */
- static void term_set_cell_contents(int x, int y, char * data) {
- 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);
- }
- /* ANSI callback to get character cell width */
- static int term_get_cell_width(void) {
- return char_width;
- }
- /* ANSI callback to get character cell height */
- static int term_get_cell_height(void) {
- return char_height;
- }
- /* ANSI callback to set cursor visibility */
- static void term_set_csr_show(int on) {
- cursor_on = on;
- if (on) {
- draw_cursor();
- }
- }
- /* ANSI callback to set the foreground/background colors. */
- static void term_set_colors(uint32_t fg, uint32_t bg) {
- current_fg = fg;
- current_bg = bg;
- }
- /* ANSI callback to force the cursor to draw */
- static void term_redraw_cursor() {
- if (term_buffer) {
- draw_cursor();
- }
- }
- /* ANSI callback to set a cell to a codepoint (only ever used to set spaces) */
- static 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);
- }
- /* ANSI callback to clear the terminal. */
- static void term_clear(int i) {
- if (i == 2) {
- /* Clear all */
- 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) {
- /* Clear after cursor */
- 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) {
- /* Clear before cursor */
- 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();
- }
- #define SWAP(T,a,b) do { T _a = a; a = b; b = _a; } while(0);
- static void term_switch_buffer(int buffer) {
- if (buffer != 0 && buffer != 1) return;
- if (buffer != active_buffer) {
- active_buffer = buffer;
- term_buffer = active_buffer == 0 ? term_buffer_a : term_buffer_b;
- SWAP(int, csr_x, _orig_x);
- SWAP(int, csr_y, _orig_y);
- SWAP(uint32_t, current_fg, _orig_fg);
- SWAP(uint32_t, current_bg, _orig_bg);
- term_redraw_all();
- display_flip();
- }
- }
- /* ANSI callbacks */
- 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_title,
- term_set_cell_contents,
- term_get_cell_width,
- term_get_cell_height,
- term_set_csr_show,
- term_switch_buffer,
- };
- /* Write data into the PTY */
- static void handle_input(char c) {
- write(fd_master, &c, 1);
- display_flip();
- if (scrollback_offset != 0) {
- scrollback_offset = 0;
- term_redraw_all();
- }
- }
- /* Write a string into the PTY */
- static void handle_input_s(char * c) {
- write(fd_master, c, strlen(c));
- display_flip();
- if (scrollback_offset != 0) {
- scrollback_offset = 0;
- term_redraw_all();
- }
- }
- /* Scroll the view up (scrollback) */
- static void scroll_up(int amount) {
- int i = 0;
- while (i < amount && scrollback_list && scrollback_offset < (int)scrollback_list->length) {
- scrollback_offset ++;
- i++;
- }
- redraw_scrollback();
- }
- /* Scroll the view down (scrollback) */
- void scroll_down(int amount) {
- int i = 0;
- while (i < amount && scrollback_list && scrollback_offset != 0) {
- scrollback_offset -= 1;
- i++;
- }
- redraw_scrollback();
- }
- /* Handle a key press from Yutani */
- static void key_event(int ret, key_event_t * event) {
- if (ret) {
- /* Ctrl-Shift-C - Copy selection */
- 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;
- }
- /* Ctrl-Shift-V - Paste selection */
- 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);
- return;
- }
- /* Left alt */
- if (event->modifiers & KEY_MOD_LEFT_ALT || event->modifiers & KEY_MOD_RIGHT_ALT) {
- handle_input('\033');
- }
- /* Shift-Tab */
- if ((event->modifiers & KEY_MOD_LEFT_SHIFT || event->modifiers & KEY_MOD_RIGHT_SHIFT) &&
- event->key == '\t') {
- handle_input_s("\033[Z");
- return;
- }
- /* ENTER = reads as linefeed, should be carriage return */
- if (event->keycode == 10) {
- handle_input('\r');
- return;
- }
- /* BACKSPACE = reads as ^H, should be ^? */
- if (event->keycode == 8) {
- handle_input(0x7F);
- return;
- }
- /* Pass key value to PTY */
- handle_input(event->key);
- } else {
- /* Special keys without ->key values */
- /* Only trigger on key down */
- 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();
- }
- 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("\033[H");
- }
- break;
- case KEY_END:
- if (event->modifiers & KEY_MOD_LEFT_SHIFT) {
- scrollback_offset = 0;
- redraw_scrollback();
- } else {
- handle_input_s("\033[F");
- }
- break;
- case KEY_DEL:
- handle_input_s("\033[3~");
- break;
- case KEY_INSERT:
- handle_input_s("\033[2~");
- break;
- }
- }
- }
- /* Check if the Terminal should close. */
- static void check_for_exit(void) {
- /* If something has set exit_application, we should exit. */
- if (exit_application) return;
- pid_t pid = waitpid(-1, NULL, WNOHANG);
- /* If the child has exited, we should exit. */
- if (pid != child_pid) return;
- /* Clean up */
- exit_application = 1;
- /* Write [Process terminated] */
- char exit_message[] = "[Process terminated]\n";
- write(fd_slave, exit_message, sizeof(exit_message));
- }
- static term_cell_t * copy_terminal(int old_width, int old_height, term_cell_t * 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;
- }
- return new_term_buffer;
- }
- /* Reinitialize the terminal after a resize. */
- static void reinit(void) {
- /* Figure out character sizes if fonts have changed. */
- if (_use_aa && !_have_freetype) {
- 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 if (_use_aa && _have_freetype) {
- font_size = 13;
- char_height = 17;
- char_width = 8;
- char_offset = 13;
- if (scale_fonts) {
- /* Recalculate scaling */
- font_size *= font_scaling;
- char_height *= font_scaling;
- char_width *= font_scaling;
- char_offset *= font_scaling;
- }
- } else {
- char_width = 9;
- char_height = 20;
- }
- int old_width = term_width;
- int old_height = term_height;
- /* Resize the terminal buffer */
- term_width = window_width / char_width;
- term_height = window_height / char_height;
- if (term_buffer) {
- term_cell_t * new_a = copy_terminal(old_width, old_height, term_buffer_a);
- term_cell_t * new_b = copy_terminal(old_width, old_height, term_buffer_b);
- free(term_buffer_a);
- term_buffer_a = new_a;
- free(term_buffer_b);
- term_buffer_b = new_b;
- if (active_buffer == 0) {
- term_buffer = new_a;
- } else {
- term_buffer = new_b;
- }
- } else {
- term_buffer_a = malloc(sizeof(term_cell_t) * term_width * term_height);
- memset(term_buffer_a, 0x0, sizeof(term_cell_t) * term_width * term_height);
- term_buffer_b = malloc(sizeof(term_cell_t) * term_width * term_height);
- memset(term_buffer_b, 0x0, sizeof(term_cell_t) * term_width * term_height);
- term_buffer = term_buffer_a;
- }
- /* Reset the ANSI library, ensuring we keep certain values */
- 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;
- /* Redraw the window */
- draw_fill(ctx, rgba(0,0,0, TERM_DEFAULT_OPAC));
- render_decors();
- term_redraw_all();
- display_flip();
- /* Send window size change ioctl */
- 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);
- }
- static void update_bounds(void) {
- struct decor_bounds bounds;
- decor_get_bounds(window, &bounds);
- decor_left_width = bounds.left_width;
- decor_top_height = bounds.top_height;
- decor_right_width = bounds.right_width;
- decor_bottom_height = bounds.bottom_height;
- decor_width = bounds.width;
- decor_height = bounds.height;
- }
- /* Handle window resize event. */
- static void resize_finish(int width, int height) {
- static int resize_attempts = 0;
- int extra_x = 0;
- int extra_y = 0;
- /* Calculate window size */
- if (!_no_frame) {
- update_bounds();
- 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;
- /* Prevent the terminal from becoming too small. */
- 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 requested, ensure the terminal resizes to a fixed size based on the cell size. */
- 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;
- /* Accept new window size */
- yutani_window_resize_accept(yctx, window, width, height);
- window_width = window->width - extra_x;
- window_height = window->height - extra_y;
- /* Reinitialize the graphics library */
- reinit_graphics_yutani(ctx, window);
- /* Reinitialize the terminal buffer and ANSI library */
- reinit();
- /* We are done resizing. */
- yutani_window_resize_done(yctx, window);
- yutani_flip(yctx, window);
- }
- /* Insert a mouse event sequence into the PTY */
- static 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);
- }
- /* Handle Yutani messages */
- static void * handle_incoming(void) {
- yutani_msg_t * m = yutani_poll(yctx);
- while (m) {
- if (menu_process_event(yctx, m)) {
- render_decors();
- }
- 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 == window) {
- 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 (me->new_x < 0 || me->new_y < 0) break;
- if (!_no_frame) {
- if (me->new_x >= (int)window_width + (int)decor_width) break;
- if (me->new_y < (int)decor_top_height+menu_bar_height) break;
- if (me->new_y >= (int)(window_height + decor_top_height+menu_bar_height)) break;
- if (me->new_x < (int)decor_left_width) break;
- if (me->new_x >= (int)(window_width + decor_left_width)) break;
- } else {
- if (me->new_x >= (int)window_width) break;
- if (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) {
- redraw_scrollback();
- 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 ){
- int old_end_x = selection_end_x;
- int old_end_y = selection_end_y;
- selection_end_x = new_x;
- selection_end_y = new_y;
- redraw_new_selection(old_end_x, old_end_y);
- 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();
- redraw_scrollback();
- 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;
- }
- /*
- * Menu Actions
- */
- /* File > Exit */
- static void _menu_action_exit(struct MenuEntry * self) {
- kill(child_pid, SIGKILL);
- exit_application = 1;
- }
- /* We need to track these so we can retitle both of them */
- static struct MenuEntry * _menu_toggle_borders_context = NULL;
- static struct MenuEntry * _menu_toggle_borders_bar = NULL;
- static 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);
- menu_update_title(_menu_toggle_borders_context, _no_frame ? "Show borders" : "Hide borders");
- menu_update_title(_menu_toggle_borders_bar, _no_frame ? "Show borders" : "Hide borders");
- reinit();
- }
- static void _menu_action_toggle_sdf(struct MenuEntry * self) {
- _use_aa = !(_use_aa);
- menu_update_title(self, _use_aa ? "Bitmap font" : "Anti-aliased font");
- reinit();
- }
- static void _menu_action_show_about(struct MenuEntry * self) {
- 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);
- render_decors();
- }
- static void _menu_action_show_help(struct MenuEntry * self) {
- system("help-browser terminal.trt &");
- render_decors();
- }
- static void _menu_action_copy(struct MenuEntry * self) {
- copy_selection();
- }
- static void _menu_action_paste(struct MenuEntry * self) {
- yutani_special_request(yctx, NULL, YUTANI_SPECIAL_REQUEST_CLIPBOARD);
- }
- static 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();
- }
- int main(int argc, char ** argv) {
- 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'},
- {"help", no_argument, 0, 'h'},
- {"grid", no_argument, 0, 'x'},
- {"no-frame", no_argument, 0, 'n'},
- {"geometry", required_argument, 0, 'g'},
- {"no-ft", no_argument, 0, 'f'},
- {0,0,0,0}
- };
- /* Read some arguments */
- int index, c;
- while ((c = getopt_long(argc, argv, "bhxnfFls:g:", long_opts, &index)) != -1) {
- if (!c) {
- if (long_opts[index].flag == 0) {
- c = long_opts[index].val;
- }
- }
- switch (c) {
- case 'x':
- _free_size = 0;
- break;
- case 'n':
- _no_frame = 1;
- break;
- case 'f':
- _force_no_ft = 1;
- break;
- case 'F':
- _fullscreen = 1;
- _no_frame = 1;
- break;
- case 'b':
- _use_aa = 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;
- }
- }
- if (!_force_no_ft) {
- void * freetype = dlopen("libtoaru_ext_freetype_fonts.so", 0);
- if (freetype) {
- _have_freetype = 1;
- freetype_set_font_face = dlsym(freetype, "freetype_set_font_face");
- freetype_set_font_size = dlsym(freetype, "freetype_set_font_size");
- freetype_draw_char = dlsym(freetype, "freetype_draw_char");
- }
- }
- /* Initialize the windowing library */
- yctx = yutani_init();
- if (!yctx) {
- fprintf(stderr, "%s: failed to connect to compositor\n", argv[0]);
- return 1;
- }
- /* Full screen mode forces window size to be that the display server */
- 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();
- struct decor_bounds bounds;
- decor_get_bounds(NULL, &bounds);
- window = yutani_window_create(yctx, window_width + bounds.width, window_height + bounds.height + menu_bar_height);
- update_bounds();
- }
- if (_fullscreen) {
- /* If fullscreen, assume we're always focused and put us on the bottom. */
- 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_toggle_borders_context = menu_create_normal(NULL, NULL, _no_frame ? "Show borders" : "Hide borders", _menu_action_hide_borders);
- menu_insert(menu_right_click, _menu_toggle_borders_context);
- 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_toggle_borders_bar = menu_create_normal(NULL, NULL, _no_frame ? "Show borders" : "Hide borders", _menu_action_hide_borders);
- menu_insert(m, _menu_toggle_borders_bar);
- menu_insert(m, menu_create_submenu(NULL,"zoom","Set zoom..."));
- menu_insert(m, menu_create_normal(NULL, NULL, _use_aa ? "Bitmap font" : "Anti-aliased font", _menu_action_toggle_sdf));
- 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);
- scrollback_list = list_create();
- images_list = list_create();
- /* Initialize the graphics context */
- ctx = init_graphics_yutani_double_buffer(window);
- /* Clear to black */
- draw_fill(ctx, rgba(0,0,0,0));
- /* Move window to screen center (XXX maybe remove this and do better window placement elsewhere */
- yutani_window_move(yctx, window, yctx->display_width / 2 - window->width / 2, yctx->display_height / 2 - window->height / 2);
- /* Open a PTY */
- openpty(&fd_master, &fd_slave, NULL, NULL, NULL);
- terminal = fdopen(fd_slave, "w");
- /* Initialize the terminal buffer and ANSI library for the first time. */
- reinit();
- /* Make sure we're not passing anything to stdin on the child */
- fflush(stdin);
- /* Fork off child */
- child_pid = fork();
- if (!child_pid) {
- setsid();
- /* Prepare stdin/out/err */
- dup2(fd_slave, 0);
- dup2(fd_slave, 1);
- dup2(fd_slave, 2);
- /* Set the TERM environment variable. */
- putenv("TERM=toaru");
- /* Execute requested initial process */
- if (argv[optind] != NULL) {
- /* Run something specified by the terminal startup */
- char * tokens[] = {argv[optind], NULL};
- execvp(tokens[0], tokens);
- fprintf(stderr, "Failed to launch requested startup application.\n");
- } else {
- /* Run the user's shell */
- char * shell = getenv("SHELL");
- if (!shell) shell = "/bin/sh"; /* fallback */
- char * tokens[] = {shell,NULL};
- execvp(tokens[0], tokens);
- exit(1);
- }
- /* Failed to start */
- exit_application = 1;
- return 1;
- } else {
- /* Set up fswait to check Yutani and the PTY master */
- int fds[2] = {fileno(yctx->sock), fd_master};
- /* PTY read buffer */
- unsigned char buf[1024];
- while (!exit_application) {
- /* Wait for something to happen. */
- int index = fswait2(2,fds,200);
- /* Check if the child application has closed. */
- check_for_exit();
- if (index == 1) {
- /* Read from PTY */
- 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) {
- /* Handle Yutani events. */
- maybe_flip_cursor();
- handle_incoming();
- } else if (index == 2) {
- /* Timeout, flip the cursor. */
- maybe_flip_cursor();
- }
- }
- }
- /* Windows will close automatically on exit. */
- return 0;
- }
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