diff options
Diffstat (limited to 'src/ui/tui.c')
| -rw-r--r-- | src/ui/tui.c | 195 |
1 files changed, 150 insertions, 45 deletions
diff --git a/src/ui/tui.c b/src/ui/tui.c index 7e044c2..e7336bf 100644 --- a/src/ui/tui.c +++ b/src/ui/tui.c @@ -7,12 +7,18 @@ #include <time.h> #include <unistd.h> +const int MAX_WIDTH = -1; +const int MAX_HEIGHT = -1; + +const int MIN_WIDTH = -2; +const int MIN_HEIGHT = -2; + void _tui_clear_cells(TUI *tui) { const TERMINAL_CELL empty = {.c = ' ', .color = COLOR_NO_COLOR, .background_color = COLOR_NO_COLOR, .on_click_callback = NULL}; - for (int i = 0; i < tui->cells_length; ++i) { + for (size_t i = 0; i < tui->cells_length; ++i) { tui->cells[i] = empty; } } @@ -56,9 +62,7 @@ TUI *tui_init() { return tui; } -void tui_delete(TUI *tui) { - const int width = tui_get_width(tui); - +void tui_delete(TUI *restrict tui) { // Revert the terminal back to its original state write(STDOUT_FILENO, "\e[?9l", 5); write(STDOUT_FILENO, "\e[?47l", 6); @@ -111,8 +115,8 @@ void tui_get_cursor_pos(TUI *tui, int *x, int *y) { read(STDIN_FILENO, buf, sizeof(buf)); sscanf(buf, "\033[%d;%dR", y, x); - --x; - --y; + --*x; + --*y; } tcsetattr(0, TCSANOW, &tui->raw); } @@ -154,9 +158,9 @@ void _tui_set_cell_on_click_callback(TUI *tui, int x, int y, on_click_callback; } -void tui_handle_mouse_action(TUI *tui, MOUSE_ACTION mouse_action) { +void tui_handle_mouse_action(TUI *tui, const MOUSE_ACTION *mouse_action) { const ON_CLICK_CALLBACK callback = - tui->cells[_tui_get_cell_index(tui, mouse_action.x, mouse_action.y)] + tui->cells[_tui_get_cell_index(tui, mouse_action->x, mouse_action->y)] .on_click_callback; if (callback != NULL) { callback(mouse_action); @@ -191,12 +195,12 @@ bool handle_input(TUI *tui) { read(STDIN_FILENO, &buff, 5); switch (buff[1]) { case 77: { - MOUSE_ACTION mouse_action = { + const MOUSE_ACTION mouse_action = { .button = buff[2], .x = buff[3] - 32 - 1, // starts at 0 .y = buff[4] - 32 - 1, // starts at 0 }; - tui_handle_mouse_action(tui, mouse_action); + tui_handle_mouse_action(tui, &mouse_action); /*printf("button:%u\n\rx:%u\n\ry:%u\n\n\r", mouse_action.button,*/ /* mouse_action.x, mouse_action.y);*/ } break; @@ -215,22 +219,33 @@ bool handle_input(TUI *tui) { case 'l': tui_move_right(1); break; - case 'q': + case 'q': return true; + case '\r': { // <ENTER> + int x, y; + tui_get_cursor_pos(tui, &x, &y); + const MOUSE_ACTION mouse_action = { + .button = MOUSE_BUTTON_LEFT_CLICK, + .x = x, + .y = y, + }; + tui_handle_mouse_action(tui, &mouse_action); + } break; case '\b': case 127: // back space tui_delete_before(); break; default: /*printf("unknown:%c,%d\n\r", buff[0], buff[0]);*/ + /*sleep(1);*/ break; } } return false; } -void tui_start_app(TUI *tui, WIDGET_BUILDER widget_builder) { - tui_main_loop(tui, widget_builder); +void tui_start_app(TUI *tui, WIDGET_BUILDER widget_builder, int fps) { + tui_main_loop(tui, widget_builder, fps); } void _tui_draw_widget_to_cells(TUI *tui, const WIDGET *widget, int width_begin, @@ -240,12 +255,10 @@ void _tui_draw_widget_to_cells(TUI *tui, const WIDGET *widget, int width_begin, case WIDGET_TYPE_TEXT: { const TEXT_METADATA *metadata = widget->metadata; const int width_diff = width_end - width_begin; - const int text_len = strlen(metadata->text); - int inserted_index = 0; + const size_t text_len = strlen(metadata->text); + size_t inserted_index = 0; int height = height_begin; for (; height < height_end; ++height) { - const int begin = (height - height_begin) * width_diff; - for (int j = 0; j < width_diff; ++j) { const int x = width_begin + j; const int y = height; @@ -286,7 +299,7 @@ void _tui_draw_widget_to_cells(TUI *tui, const WIDGET *widget, int width_begin, const COLUMN_METADATA *metadata = widget->metadata; *child_width = width_begin; *child_height = height_begin; - for (int i = 0; i < metadata->children->size; ++i) { + for (size_t i = 0; i < metadata->children->size; ++i) { const WIDGET *child = metadata->children->widgets[i]; int width_temp; _tui_draw_widget_to_cells(tui, child, width_begin, width_end, @@ -301,7 +314,7 @@ void _tui_draw_widget_to_cells(TUI *tui, const WIDGET *widget, int width_begin, const ROW_METADATA *metadata = widget->metadata; *child_width = width_begin; *child_height = height_begin; - for (int i = 0; i < metadata->children->size; ++i) { + for (size_t i = 0; i < metadata->children->size; ++i) { const WIDGET *child = metadata->children->widgets[i]; int height_temp; _tui_draw_widget_to_cells(tui, child, *child_width, width_end, @@ -315,12 +328,12 @@ void _tui_draw_widget_to_cells(TUI *tui, const WIDGET *widget, int width_begin, case WIDGET_TYPE_BOX: { const BOX_METADATA *metadata = widget->metadata; - if (metadata->width != -1) { + if (metadata->width != MAX_WIDTH) { width_end = metadata->width + width_begin >= width_end ? width_end : metadata->width + width_begin; } - if (metadata->height != -1) { + if (metadata->height != MAX_HEIGHT) { height_end = metadata->height + height_begin >= height_end ? height_end : metadata->height + height_begin; @@ -372,7 +385,7 @@ void _tui_draw_cells_to_terminal(TUI *tui) { COLOR last_color = COLOR_NO_COLOR; COLOR last_background_color = COLOR_NO_COLOR; - for (int i = 0; i < tui->cells_length; ++i) { + for (size_t i = 0; i < tui->cells_length; ++i) { const TERMINAL_CELL cell = tui->cells[i]; if (last_color != cell.color || @@ -403,11 +416,94 @@ void _tui_draw_cells_to_terminal(TUI *tui) { write(STDOUT_FILENO, str, len); } -void tui_main_loop(TUI *tui, WIDGET_BUILDER widget_builder) { +int kbhit() { + struct timeval tv = {0L, 0L}; + fd_set fds; + FD_ZERO(&fds); + FD_SET(0, &fds); + return select(1, &fds, NULL, NULL, &tv) > 0; +} + +bool widget_array_eqauls(const WIDGET_ARRAY *restrict left, const WIDGET_ARRAY *restrict right) { + if (left->size != right->size) { + return false; + } + for (size_t i = 0; i < left->size; ++i) { + if (!widget_eqauls(left->widgets[i], right->widgets[i])) { + return false; + } + } + return true; +} + +bool widget_eqauls(const WIDGET *restrict left, const WIDGET *restrict right) { + if (left == NULL || right == NULL) { + return left == NULL && right == NULL; + } + if (left->type != right->type) { + return false; + } + + switch (left->type) { + case WIDGET_TYPE_TEXT: { + const TEXT_METADATA *left_data = left->metadata; + const TEXT_METADATA *right_data = right->metadata; + return left_data->color == right_data->color && + strcmp(left_data->text, right_data->text) == 0; + } break; + case WIDGET_TYPE_BUTTON: { + const BUTTON_METADATA *left_data = left->metadata; + const BUTTON_METADATA *right_data = right->metadata; + return left_data->callback == right_data->callback && + widget_eqauls(left_data->child, right_data->child); + } break; + case WIDGET_TYPE_COLUMN: { + const COLUMN_METADATA *left_data = left->metadata; + const COLUMN_METADATA *right_data = right->metadata; + return widget_array_eqauls(left_data->children, right_data->children); + } break; + case WIDGET_TYPE_ROW: { + const ROW_METADATA *left_data = left->metadata; + const ROW_METADATA *right_data = right->metadata; + return widget_array_eqauls(left_data->children, right_data->children); + } break; + case WIDGET_TYPE_BOX: { + const BOX_METADATA *left_data = left->metadata; + const BOX_METADATA *right_data = right->metadata; + return left_data->width == right_data->width && + left_data->height == right_data->height && + left_data->color == right_data->color && + widget_eqauls(left_data->child, right_data->child); + } break; + default: + fprintf(stderr, "Type error '%d' in tui_delete_widget\n", left->type); + exit(1); + } + + return true; +} + +const int NANO_TO_SECOND = 1000000000; + +void nano_sleep(long int nano_seconds) { + struct timespec remaining, + request = {nano_seconds / NANO_TO_SECOND, nano_seconds % NANO_TO_SECOND}; + nanosleep(&request, &remaining); +} + +long int nano_time() { + struct timespec t = {0, 0}, tend = {0, 0}; + clock_gettime(CLOCK_MONOTONIC, &t); + return t.tv_sec * NANO_TO_SECOND + t.tv_nsec; +} + +void tui_main_loop(TUI *tui, WIDGET_BUILDER widget_builder, int fps) { + const long int frame_nano = NANO_TO_SECOND / fps; while (1) { + const long int start = nano_time(); + tui_save_cursor(); tui_refresh(tui); WIDGET *root_widget = widget_builder(tui); - tui_save_cursor(); _tui_clear_cells(tui); int width, height; @@ -416,9 +512,17 @@ void tui_main_loop(TUI *tui, WIDGET_BUILDER widget_builder) { _tui_draw_cells_to_terminal(tui); tui_delete_widget(root_widget); + /*tui_move_to(0, 0);*/ + /*printf("%ld\t%ld", last_frame_time, frame_nano);*/ tui_restore_cursor(); - if (handle_input(tui)) { - return; + if (fps != -1) { + const long int diff = nano_time() - start; + nano_sleep(frame_nano-diff); + } + if (kbhit()) { + if (handle_input(tui)) { + return; + } } } } @@ -430,7 +534,7 @@ WIDGET *tui_new_widget(WIDGET_TYPE type, void *metadata) { return widget; } -void tui_delete_widget(WIDGET *widget) { +void tui_delete_widget(WIDGET *restrict widget) { if (widget == NULL) { return; } @@ -457,11 +561,11 @@ void tui_delete_widget(WIDGET *widget) { free(widget); } -WIDGET *tui_make_text(char *text, COLOR color) { +WIDGET *tui_make_text(char *restrict text, COLOR color) { return tui_new_widget(WIDGET_TYPE_TEXT, _tui_make_text_metadata(text, color)); } -TEXT_METADATA *_tui_make_text_metadata(char *text, COLOR color) { +TEXT_METADATA *_tui_make_text_metadata(char *restrict text, COLOR color) { TEXT_METADATA *metadata = malloc(sizeof(TEXT_METADATA)); metadata->text = malloc(strlen(text) + 1); strcpy(metadata->text, text); @@ -469,17 +573,17 @@ TEXT_METADATA *_tui_make_text_metadata(char *text, COLOR color) { return metadata; } -void _tui_delete_text(WIDGET *text) { +void _tui_delete_text(WIDGET *restrict text) { free(((TEXT_METADATA *)text->metadata)->text); free(text->metadata); } -WIDGET *tui_make_button(WIDGET *child, ON_CLICK_CALLBACK callback) { +WIDGET *tui_make_button(WIDGET *restrict child, ON_CLICK_CALLBACK callback) { return tui_new_widget(WIDGET_TYPE_BUTTON, _tui_make_button_metadata(child, callback)); } -BUTTON_METADATA *_tui_make_button_metadata(WIDGET *child, +BUTTON_METADATA *_tui_make_button_metadata(WIDGET *restrict child, ON_CLICK_CALLBACK callback) { BUTTON_METADATA *metadata = malloc(sizeof(BUTTON_METADATA)); metadata->child = child; @@ -487,51 +591,52 @@ BUTTON_METADATA *_tui_make_button_metadata(WIDGET *child, return metadata; } -void _tui_delete_button(WIDGET *button) { +void _tui_delete_button(WIDGET *restrict button) { tui_delete_widget(((BUTTON_METADATA *)button->metadata)->child); free(button->metadata); } -WIDGET *tui_make_column(WIDGET_ARRAY *children) { +WIDGET *tui_make_column(WIDGET_ARRAY *restrict children) { return tui_new_widget(WIDGET_TYPE_COLUMN, _tui_make_column_metadata(children)); } -COLUMN_METADATA *_tui_make_column_metadata(WIDGET_ARRAY *children) { +COLUMN_METADATA *_tui_make_column_metadata(WIDGET_ARRAY *restrict children) { COLUMN_METADATA *metadata = malloc(sizeof(COLUMN_METADATA)); metadata->children = children; return metadata; } -void _tui_delete_column(WIDGET *column) { +void _tui_delete_column(WIDGET *restrict column) { COLUMN_METADATA *metadata = column->metadata; _tui_delete_widget_array(metadata->children); free(column->metadata); } -WIDGET *tui_make_row(WIDGET_ARRAY *children) { +WIDGET *tui_make_row(WIDGET_ARRAY *restrict children) { return tui_new_widget(WIDGET_TYPE_ROW, _tui_make_row_metadata(children)); } -ROW_METADATA *_tui_make_row_metadata(WIDGET_ARRAY *children) { +ROW_METADATA *_tui_make_row_metadata(WIDGET_ARRAY *restrict children) { ROW_METADATA *metadata = malloc(sizeof(ROW_METADATA)); metadata->children = children; return metadata; } -void _tui_delete_row(WIDGET *row) { +void _tui_delete_row(WIDGET *restrict row) { ROW_METADATA *metadata = row->metadata; _tui_delete_widget_array(metadata->children); free(row->metadata); } -WIDGET *tui_make_box(int width, int height, WIDGET *child, COLOR color) { +WIDGET *tui_make_box(int width, int height, WIDGET *restrict child, + COLOR color) { return tui_new_widget(WIDGET_TYPE_BOX, _tui_make_box_metadata(child, width, height, color)); } -BOX_METADATA *_tui_make_box_metadata(WIDGET *child, int width, int height, - COLOR color) { +BOX_METADATA *_tui_make_box_metadata(WIDGET *restrict child, int width, + int height, COLOR color) { BOX_METADATA *metadata = malloc(sizeof(BOX_METADATA)); metadata->width = width; metadata->height = height; @@ -545,13 +650,13 @@ void _tui_delete_box(WIDGET *box) { free(box->metadata); } -WIDGET_ARRAY *tui_make_widget_array(int size, ...) { +WIDGET_ARRAY *tui_make_widget_array(size_t size, ...) { va_list arg_pointer; va_start(arg_pointer, size); WIDGET **widgets = malloc(size * sizeof(WIDGET **)); - for (int i = 0; i < size; ++i) { + for (size_t i = 0; i < size; ++i) { widgets[i] = va_arg(arg_pointer, WIDGET *); } va_end(arg_pointer); @@ -563,7 +668,7 @@ WIDGET_ARRAY *tui_make_widget_array(int size, ...) { return widget_array; } -void _tui_delete_widget_array(WIDGET_ARRAY *widget_array) { +void _tui_delete_widget_array(WIDGET_ARRAY *restrict widget_array) { for (size_t i = 0; i < widget_array->size; ++i) { tui_delete_widget(widget_array->widgets[i]); } |