utf-8: initial support

TODO.md

@@ -6,6 +6,7 @@
 - [x] Create dynamic map of elements IDs and their pointers
 - [x] Adapt modals to new value-forwarding method
 - [ ] More intuitive navigation between nested groups (by pressing left and right buttons)
+- [ ] UTF-8: correct sizing in modals
 
 ## Features:
 - [x] Search files

src/utils/utf8.c

@@ -1,4 +1,9 @@
+#include <ncursesw/ncurses.h>
 #include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <wchar.h>
 
 size_t count_utf8_code_points(const char *s) {
   size_t count = 0;
@@ -7,3 +12,29 @@ size_t count_utf8_code_points(const char *s) {
   }
   return count;
 }
+
+int64_t convert_utf8_to_wide(const char *utf8_str, wchar_t **restrict wide_str,
+                             size_t *restrict len) {
+  // Step 1: Convert UTF-8 (MBCS) to wchar_t (wide)
+  size_t wide_len =
+      count_utf8_code_points(utf8_str); // Get required length (-1 on error)
+  if (wide_len == (size_t)-1) {
+    *len = 0;
+    perror("mbstowcs failed");
+    return 1;
+  }
+  *wide_str =
+      malloc((wide_len + 1) * sizeof(wchar_t)); // +1 for null terminator
+  mbstowcs(*wide_str, utf8_str, wide_len + 1);  // Perform conversion
+  *len = wide_len;
+  return 0;
+}
+
+int64_t curs_printw(WINDOW *win, int64_t y, int64_t x, char *const utf8_str) {
+  wchar_t *wname = NULL;
+  size_t nsize = 0;
+  convert_utf8_to_wide(utf8_str, &wname, &nsize);
+  mvwaddwstr(win, y, x, wname);
+  free(wname);
+  return nsize;
+}

src/utils/utf8.h

@@ -1,7 +1,11 @@
 #ifndef UTF8_H
 #define UTF8_H
 
+#include <ncursesw/ncurses.h>
 #include <stddef.h>
+#include <stdint.h>
 size_t count_utf8_code_points(const char *s);
-
+int64_t convert_utf8_to_wide(const char *utf8_str, wchar_t **restrict wide_str,
+                             size_t *restrict len);
+int64_t curs_printw(WINDOW *win, int64_t y, int64_t x, char *const utf8_str);
 #endif

src/widget/file_list.c

@@ -169,8 +169,8 @@ void draw_file_list(ui_file_list_t *fui) {
       active_el = el;
     }
     p_x = 1;
-    mvwprintw(parent_win, p_y, p_x, "%s%n", el->name, &p_x);
-    mvwprintw(parent_win, p_y, p_x + 1, "%*s", sz_x - p_x, "");
+    p_x += curs_printw(parent_win, p_y, p_x, el->name);
+    mvwprintw(parent_win, p_y, p_x, "%*s", sz_x - p_x, "");
     if (cur_el_idx == fui->current_idx) {
       wattroff(parent_win, A_BOLD | A_REVERSE);
     }

src/widget/fs_file_list.c

@@ -11,6 +11,7 @@
 #include <sys/types.h>
 #include <uchar.h>
 #include <unistd.h>
+#include <utils.h>
 
 void reset_file_list(ui_fs_file_list_t *fl_ui);
 
@@ -101,8 +102,7 @@ void select_item(ui_fs_file_list_t *fui, int32_t *resp_data) {
     } else {
       dp_current = strlen(fui->d_path);
       selection = fui->current->name + 1;
-      fui->d_path =
-          realloc(fui->d_path, dp_current + strlen(selection) + 2);
+      fui->d_path = realloc(fui->d_path, dp_current + strlen(selection) + 2);
       sprintf(fui->d_path, "%s/%s", fui->d_path, selection);
       fl_clear(&(fui->start), &(fui->current));
       fui->start = get_files_from_fs(fui->d_path);
@@ -134,7 +134,7 @@ void fs_file_list_cb(callback_args_t *args) {
     }
     break;
   case '\n':
-    select_item(fui, (int32_t *) args->resp_data.val.val.num);
+    select_item(fui, (int32_t *)args->resp_data.val.val.num);
     break;
   }
 }
@@ -172,7 +172,6 @@ void draw_fs_file_list(ui_fs_file_list_t *fl_ui) {
   }
 
   wattrset(win, A_REVERSE); /* Match with modal background */
-
   do {
     if (p_y < 1) {
       p_y++;
@@ -182,14 +181,8 @@ void draw_fs_file_list(ui_fs_file_list_t *fl_ui) {
       wattrset(win, COLOR_PAIR(3) | A_BOLD | A_REVERSE);
     }
     p_x = 1;
-    /* TODO: */
-    wchar_t wname[512];
-    mbstowcs(wname, el->name, 512);
-    // wchar_t text[] = L"ВUTF-8 работает!  → ★ ℝ 日本語\n";
-    mvwaddwstr(win, p_y, p_x++, L"Ё");
-    mvwaddwstr(win, p_y, p_x++, L"Ж");
-    // mvwprintw(win, p_y, p_x, "%s%n", el->name, &p_x);
-    mvwprintw(win, p_y, p_x + 1, "%*s", sz_x_f - p_x, "");
+    p_x += curs_printw(win, p_y, p_x, el->name);
+    mvwprintw(win, p_y, p_x, "%*s", sz_x_f - p_x, "");
     if (el == fl_ui->current) {
       wattroff(win, COLOR_PAIR(3) | A_BOLD);
     }

src/widget_core/CMakeLists.txt

@@ -2,6 +2,11 @@ add_library(widget_core STATIC)
 
 file(GLOB M_SOURCES "*.c")
 
+target_link_libraries(widget_core 
+    PRIVATE
+        utils
+)
+
 target_sources(widget_core
     PRIVATE
         ${M_SOURCES}

src/widget_core/widget_core.c

@@ -4,6 +4,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
+#include <utils.h>
 
 extern uint32_t m_id;
 int32_t rsize_to_value(int32_t size, enum rsize rsize);
@@ -14,7 +15,8 @@ void init_widget(widget_t *w, widget_t *w_parent, WINDOW **win, char *title) {
   w->sz.y = 0;
   w->ps.x = 0;
   w->ps.y = 0;
-  if (w_parent != NULL && w_parent->w_parent != NULL) { /* not root element of the window */
+  if (w_parent != NULL &&
+      w_parent->w_parent != NULL) { /* not root element of the window */
     w->m.x = w_parent->m.x;
     w->m.y = w_parent->m.y;
   } else {
@@ -56,11 +58,11 @@ int32_t get_max_line_len(const char *text, uint32_t *line_count) {
   strncpy(l_buf, text + i - c_line_len, c_line_len);                           \
   l_buf[c_line_len] = '\0';                                                    \
   if ((attrs & PMT_ALIGN_CENTER) == PMT_ALIGN_CENTER) {                        \
-    mvwprintw(win, line_v_pos, (win_width - c_line_len) / 2, "%s", l_buf);     \
+    curs_printw(win, line_v_pos, (win_width - c_line_len) / 2, l_buf);   \
   } else if (attrs & PMT_POS_CENTER) {                                         \
-    mvwprintw(win, line_v_pos, (win_width - m_line_len) / 2, "%s", l_buf);     \
+    curs_printw(win, line_v_pos, (win_width - m_line_len) / 2, l_buf);   \
   } else {                                                                     \
-    mvwprintw(win, line_v_pos, x, "%s", l_buf);                                \
+    curs_printw(win, line_v_pos, x, l_buf);                              \
   }
 
 uint32_t print_multiline_text(WINDOW *win, const char *_text,