diff --git a/clients/terminal.c b/clients/terminal.c index 2868674a..68649673 100644 --- a/clients/terminal.c +++ b/clients/terminal.c @@ -47,6 +47,11 @@ static int option_fullscreen; #define MOD_ALT 0x02 #define MOD_CTRL 0x04 +#define ATTRMASK_BOLD 0x01 +#define ATTRMASK_UNDERLINE 0x02 +#define ATTRMASK_BLINK 0x04 +#define ATTRMASK_INVERSE 0x08 + union utf8_char { unsigned char byte[4]; uint32_t ch; @@ -149,12 +154,37 @@ utf8_next_char(struct utf8_state_machine *machine, char c) return machine->state; } +struct terminal_color { double r, g, b, a; }; +struct attr { + unsigned char fg, bg; + char a; /* attributes format: + * 76543210 + * ilub */ + char r; /* reserved */ +}; +struct color_scheme { + struct terminal_color palette[16]; + struct terminal_color border; + struct attr default_attr; +}; + +static void +attr_init(struct attr *data_attr, struct attr attr, int n) +{ + int i; + for (i = 0; i < n; i++) { + data_attr[i] = attr; + } +} + struct terminal { struct window *window; struct display *display; union utf8_char *data; + struct attr *data_attr; + struct attr curr_attr; union utf8_char last_char; - int data_pitch; /* The width in bytes of a line */ + int data_pitch, attr_pitch; /* The width in bytes of a line */ int width, height, start, row, column; int fd, master; GIOChannel *channel; @@ -167,9 +197,45 @@ struct terminal { int fullscreen; int focused; struct color_scheme *color_scheme; + struct terminal_color color_table[256]; cairo_font_extents_t extents; + cairo_font_face_t *font_normal, *font_bold; }; +static void +terminal_init(struct terminal *terminal) +{ + terminal->curr_attr = terminal->color_scheme->default_attr; + + terminal->row = 0; + terminal->column = 0; +} + +static void +init_color_table(struct terminal *terminal) +{ + int c, r; + struct terminal_color *color_table = terminal->color_table; + + for (c = 0; c < 256; c ++) { + if (c < 16) { + color_table[c] = terminal->color_scheme->palette[c]; + } else if (c < 232) { + r = c - 16; + color_table[c].b = ((double)(r % 6) / 6.0); r /= 6; + color_table[c].g = ((double)(r % 6) / 6.0); r /= 6; + color_table[c].r = ((double)(r % 6) / 6.0); + color_table[c].a = 1.0; + } else { + r = (c - 232) * 10 + 8; + color_table[c].r = ((double) r) / 256.0; + color_table[c].g = color_table[c].r; + color_table[c].b = color_table[c].r; + color_table[c].a = 1.0; + } + } +} + static union utf8_char * terminal_get_row(struct terminal *terminal, int row) { @@ -180,12 +246,27 @@ terminal_get_row(struct terminal *terminal, int row) return &terminal->data[index * terminal->width]; } +static struct attr* +terminal_get_attr_row(struct terminal *terminal, int row) { + int index; + + index = (row + terminal->start) % terminal->height; + + return &terminal->data_attr[index * terminal->width]; +} + +static struct attr +terminal_get_attr(struct terminal *terminal, int row, int col) { + return terminal_get_attr_row(terminal, row)[col]; +} + static void terminal_resize(struct terminal *terminal, int width, int height) { size_t size; union utf8_char *data; - int data_pitch; + struct attr *data_attr; + int data_pitch, attr_pitch; int i, l, total_rows, start; if (terminal->width == width && terminal->height == height) @@ -194,8 +275,11 @@ terminal_resize(struct terminal *terminal, int width, int height) data_pitch = width * sizeof(union utf8_char); size = data_pitch * height; data = malloc(size); + attr_pitch = width * sizeof(struct attr); + data_attr = malloc(attr_pitch * height); memset(data, 0, size); - if (terminal->data) { + attr_init(data_attr, terminal->curr_attr, width * height); + if (terminal->data && terminal->data_attr) { if (width > terminal->width) l = terminal->width; else @@ -213,15 +297,21 @@ terminal_resize(struct terminal *terminal, int width, int height) memcpy(&data[width * i], terminal_get_row(terminal, i), l * sizeof(union utf8_char)); + memcpy(&data_attr[width * i], + terminal_get_attr_row(terminal, i), + l * sizeof(struct attr)); } free(terminal->data); + free(terminal->data_attr); } terminal->data_pitch = data_pitch; + terminal->attr_pitch = attr_pitch; terminal->width = width; terminal->height = height; terminal->data = data; + terminal->data_attr = data_attr; if (terminal->row >= terminal->height) terminal->row = terminal->height - 1; @@ -230,9 +320,28 @@ terminal_resize(struct terminal *terminal, int width, int height) terminal->start = 0; } -struct color_scheme { struct { double r, g, b, a; } fg, bg; } - matrix_colors = { { 0, 0.7, 0, 1 }, { 0, 0, 0, 0.9 } }, - jbarnes_colors = { { 1, 1, 1, 1 }, { 0, 0, 0, 1 } }; +struct color_scheme DEFAULT_COLORS = { + { + {0, 0, 0, 1}, /* black */ + {0.66, 0, 0, 1}, /* red */ + {0 , 0.66, 0, 1}, /* green */ + {0.66, 0.33, 0, 1}, /* orange (nicer than muddy yellow) */ + {0 , 0 , 0.66, 1}, /* blue */ + {0.66, 0 , 0.66, 1}, /* magenta */ + {0, 0.66, 0.66, 1}, /* cyan */ + {0.66, 0.66, 0.66, 1}, /* light grey */ + {0.22, 0.33, 0.33, 1}, /* dark grey */ + {1, 0.33, 0.33, 1}, /* high red */ + {0.33, 1, 0.33, 1}, /* high green */ + {1, 1, 0.33, 1}, /* high yellow */ + {0.33, 0.33, 1, 1}, /* high blue */ + {1, 0.33, 1, 1}, /* high magenta */ + {0.33, 1, 1, 1}, /* high cyan */ + {1, 1, 1, 1} /* white */ + }, + {0, 0, 0, 1}, /* black border */ + {7, 0, 0, } /* bg:black (0), fg:light gray (7) */ +}; static void terminal_draw_contents(struct terminal *terminal) @@ -242,11 +351,13 @@ terminal_draw_contents(struct terminal *terminal) cairo_font_extents_t extents; int top_margin, side_margin; int row, col; + struct attr attr; union utf8_char *p_row; struct utf8_chars { union utf8_char c; char null; } toShow; + int foreground, background, bold, underline; int text_x, text_y; cairo_surface_t *surface; double d; @@ -259,33 +370,72 @@ terminal_draw_contents(struct terminal *terminal) cr = cairo_create(surface); cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); cairo_set_source_rgba(cr, - terminal->color_scheme->bg.r, - terminal->color_scheme->bg.g, - terminal->color_scheme->bg.b, - terminal->color_scheme->bg.a); + terminal->color_scheme->border.r, + terminal->color_scheme->border.g, + terminal->color_scheme->border.b, + terminal->color_scheme->border.a); cairo_paint(cr); cairo_set_operator(cr, CAIRO_OPERATOR_OVER); - cairo_set_source_rgba(cr, - terminal->color_scheme->fg.r, - terminal->color_scheme->fg.g, - terminal->color_scheme->fg.b, - terminal->color_scheme->fg.a); - - cairo_select_font_face (cr, "mono", - CAIRO_FONT_SLANT_NORMAL, - CAIRO_FONT_WEIGHT_NORMAL); + + cairo_set_font_face(cr, terminal->font_normal); cairo_set_font_size(cr, 14); cairo_font_extents(cr, &extents); side_margin = (rectangle.width - terminal->width * extents.max_x_advance) / 2; top_margin = (rectangle.height - terminal->height * extents.height) / 2; + cairo_set_line_width(cr, 1.0); + for (row = 0; row < terminal->height; row++) { p_row = terminal_get_row(terminal, row); for (col = 0; col < terminal->width; col++) { + /* get the attributes for this character cell */ + attr = terminal_get_attr(terminal, row, col); + if ((attr.a & ATTRMASK_INVERSE) || + (terminal->focused && + terminal->row == row && terminal->column == col)) + { + foreground = attr.bg; + background = attr.fg; + } else { + foreground = attr.fg; + background = attr.bg; + } + bold = attr.a & (ATTRMASK_BOLD | ATTRMASK_BLINK); + underline = attr.a & ATTRMASK_UNDERLINE; + + /* paint the background */ + cairo_set_source_rgba(cr, + terminal->color_table[background].r, + terminal->color_table[background].g, + terminal->color_table[background].b, + terminal->color_table[background].a); + cairo_move_to(cr, side_margin + (col * extents.max_x_advance), + top_margin + (row * extents.height)); + cairo_rel_line_to(cr, extents.max_x_advance, 0); + cairo_rel_line_to(cr, 0, extents.height); + cairo_rel_line_to(cr, -extents.max_x_advance, 0); + cairo_close_path(cr); + cairo_fill(cr); + /* paint the foreground */ + if (bold) + cairo_set_font_face(cr, terminal->font_bold); + else + cairo_set_font_face(cr, terminal->font_normal); + cairo_set_source_rgba(cr, + terminal->color_table[foreground].r, + terminal->color_table[foreground].g, + terminal->color_table[foreground].b, + terminal->color_table[foreground].a); + text_x = side_margin + col * extents.max_x_advance; text_y = top_margin + extents.ascent + row * extents.height; + if (underline) { + cairo_move_to(cr, text_x, text_y + 2); + cairo_line_to(cr, text_x + extents.max_x_advance, text_y + 2); + cairo_stroke(cr); + } cairo_move_to(cr, text_x, text_y); toShow.c = p_row[col]; @@ -293,20 +443,19 @@ terminal_draw_contents(struct terminal *terminal) } } - d = terminal->focused ? 0 : 0.5; + if (!terminal->focused) { + d = 0.5; - cairo_set_line_width(cr, 1); - cairo_move_to(cr, side_margin + terminal->column * extents.max_x_advance + d, - top_margin + terminal->row * extents.height + d); - cairo_rel_line_to(cr, extents.max_x_advance - 2 * d, 0); - cairo_rel_line_to(cr, 0, extents.height - 2 * d); - cairo_rel_line_to(cr, -extents.max_x_advance + 2 * d, 0); - cairo_close_path(cr); + cairo_set_line_width(cr, 1); + cairo_move_to(cr, side_margin + terminal->column * extents.max_x_advance + d, + top_margin + terminal->row * extents.height + d); + cairo_rel_line_to(cr, extents.max_x_advance - 2 * d, 0); + cairo_rel_line_to(cr, 0, extents.height - 2 * d); + cairo_rel_line_to(cr, -extents.max_x_advance + 2 * d, 0); + cairo_close_path(cr); - if (terminal->focused) - cairo_fill(cr); - else cairo_stroke(cr); + } cairo_destroy(cr); @@ -358,10 +507,14 @@ redraw_handler(struct window *window, void *data) static void terminal_data(struct terminal *terminal, const char *data, size_t length); +static void +handle_sgr(struct terminal *terminal, int code); + static void handle_escape(struct terminal *terminal) { union utf8_char *row; + struct attr *attr_row; char *p; int i, count; int args[10], set[10] = { 0, }; @@ -371,6 +524,10 @@ handle_escape(struct terminal *terminal) p = &terminal->escape[2]; while ((isdigit(*p) || *p == ';') && i < 10) { if (*p == ';') { + if (!set[i]) { + args[i] = 0; + set[i] = 1; + } p++; i++; } else { @@ -410,9 +567,13 @@ handle_escape(struct terminal *terminal) break; case 'J': row = terminal_get_row(terminal, terminal->row); + attr_row = terminal_get_attr_row(terminal, terminal->row); memset(&row[terminal->column], 0, (terminal->width - terminal->column) * sizeof(union utf8_char)); - for (i = terminal->row + 1; i < terminal->height; i++) + attr_init(&attr_row[terminal->column], terminal->curr_attr, (terminal->width - terminal->column)); + for (i = terminal->row + 1; i < terminal->height; i++) { memset(terminal_get_row(terminal, i), 0, terminal->width * sizeof(union utf8_char)); + attr_init(terminal_get_attr_row(terminal, i), terminal->curr_attr, terminal->width); + } break; case 'G': if (set[0]) @@ -425,10 +586,30 @@ handle_escape(struct terminal *terminal) break; case 'K': row = terminal_get_row(terminal, terminal->row); + attr_row = terminal_get_attr_row(terminal, terminal->row); memset(&row[terminal->column], 0, (terminal->width - terminal->column) * sizeof(union utf8_char)); + attr_init(&attr_row[terminal->column], terminal->curr_attr, (terminal->width - terminal->column)); break; - case 'm': - /* color, blink, bold etc*/ + case 'm': /* SGR */ + if (set[0] && set[1] && set[2] && args[1] == 5) { + if (args[0] == 38) { + handle_sgr(terminal, args[2] + 256); + break; + } else if (args[0] == 48) { + handle_sgr(terminal, args[2] + 512); + break; + } + } + for(i = 0; i < 10; i++) { + if(set[i]) { + handle_sgr(terminal, args[i]); + } else if(i == 0) { + handle_sgr(terminal, 0); + break; + } else { + break; + } + } break; case '?': if (strcmp(p, "?25l") == 0) { @@ -445,6 +626,68 @@ handle_escape(struct terminal *terminal) } } +static void +handle_sgr(struct terminal *terminal, int code) +{ + switch(code) { + case 0: + terminal->curr_attr = terminal->color_scheme->default_attr; + break; + case 1: + terminal->curr_attr.a |= ATTRMASK_BOLD; + if (terminal->curr_attr.fg < 8) + terminal->curr_attr.fg += 8; + break; + case 4: + terminal->curr_attr.a |= ATTRMASK_UNDERLINE; + break; + case 5: + terminal->curr_attr.a |= ATTRMASK_BLINK; + break; + case 2: + case 21: + case 22: + terminal->curr_attr.a &= ~ATTRMASK_BOLD; + if (terminal->curr_attr.fg < 16 && terminal->curr_attr.fg >= 8) + terminal->curr_attr.fg -= 8; + break; + case 24: + terminal->curr_attr.a &= ~ATTRMASK_UNDERLINE; + break; + case 25: + terminal->curr_attr.a &= ~ATTRMASK_BLINK; + break; + case 7: + case 26: + terminal->curr_attr.a |= ATTRMASK_INVERSE; + break; + case 27: + terminal->curr_attr.a &= ~ATTRMASK_INVERSE; + break; + case 39: + terminal->curr_attr.fg = terminal->color_scheme->default_attr.fg; + break; + case 49: + terminal->curr_attr.bg = terminal->color_scheme->default_attr.bg; + break; + default: + if(code >= 30 && code <= 37) { + terminal->curr_attr.fg = code - 30; + if (terminal->curr_attr.a & ATTRMASK_BOLD) + terminal->curr_attr.fg += 8; + } else if(code >= 40 && code <= 47) { + terminal->curr_attr.bg = code - 40; + } else if(code >= 256 && code < 512) { + terminal->curr_attr.fg = code - 256; + } else if(code >= 512 && code < 768) { + terminal->curr_attr.bg = code - 512; + } else { + fprintf(stderr, "Unknown SGR code: %d\n", code); + } + break; + } +} + static void terminal_data(struct terminal *terminal, const char *data, size_t length) { @@ -452,6 +695,7 @@ terminal_data(struct terminal *terminal, const char *data, size_t length) union utf8_char utf8; enum utf8_state parser_state; union utf8_char *row; + struct attr *attr_row; for (i = 0; i < length; i++) { parser_state = @@ -472,6 +716,7 @@ terminal_data(struct terminal *terminal, const char *data, size_t length) } row = terminal_get_row(terminal, terminal->row); + attr_row = terminal_get_attr_row(terminal, terminal->row); if (terminal->state == STATE_ESCAPE) { terminal->escape[terminal->escape_length++] = utf8.byte[0]; @@ -503,11 +748,14 @@ terminal_data(struct terminal *terminal, const char *data, size_t length) terminal->start = 0; memset(terminal_get_row(terminal, terminal->row), 0, terminal->width * sizeof(union utf8_char)); + attr_init(terminal_get_attr_row(terminal, terminal->row), + terminal->curr_attr, terminal->width); } break; case '\t': memset(&row[terminal->column], ' ', (-terminal->column & 7) * sizeof(union utf8_char)); + attr_init(&attr_row[terminal->column], terminal->curr_attr, -terminal->column & 7); terminal->column = (terminal->column + 7) & ~7; break; case '\e': @@ -525,7 +773,8 @@ terminal_data(struct terminal *terminal, const char *data, size_t length) default: if (terminal->column < terminal->width) if (utf8.byte[0] < 32) utf8.byte[0] += 64; - row[terminal->column++] = utf8; + row[terminal->column] = utf8; + attr_row[terminal->column++] = terminal->curr_attr; break; } } @@ -609,11 +858,13 @@ terminal_create(struct display *display, int fullscreen) memset(terminal, 0, sizeof *terminal); terminal->fullscreen = fullscreen; - terminal->color_scheme = &jbarnes_colors; + terminal->color_scheme = &DEFAULT_COLORS; + terminal_init(terminal); terminal->window = window_create(display, "Wayland Terminal", 500, 400); init_state_machine(&terminal->state_machine); + init_color_table(terminal); terminal->display = display; terminal->margin = 5; @@ -628,9 +879,15 @@ terminal_create(struct display *display, int fullscreen) surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 0, 0); cr = cairo_create(surface); - cairo_select_font_face (cr, "mono", - CAIRO_FONT_SLANT_NORMAL, - CAIRO_FONT_WEIGHT_NORMAL); + terminal->font_bold = cairo_toy_font_face_create ("mono", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_BOLD); + cairo_font_face_reference(terminal->font_bold); + terminal->font_normal = cairo_toy_font_face_create ("mono", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_font_face_reference(terminal->font_normal); + cairo_set_font_face(cr, terminal->font_normal); cairo_set_font_size(cr, 14); cairo_font_extents(cr, &terminal->extents); cairo_destroy(cr);