text edit: new line processing mechanism [not finished]

src/utils/d_array.c

@@ -13,6 +13,12 @@ void u_d_arr_ptr_init(d_array_ptr_t *arr, int32_t init_capacity) {
   memset(arr->arr, 0, sizeof(void *) * init_capacity);
 }
 
+/* TODO: check out the correctness */
+void u_d_array_append(d_array_ptr_t *arr, void *el_ptr, size_t el_len) {
+  void *el = malloc(el_len);
+  u_d_arr_ptr_add(arr, el, arr->length);
+}
+
 void u_d_arr_ptr_add(d_array_ptr_t *arr, void *ptr, int32_t idx) {
   if (idx > arr->capacity - 1) {
     int32_t new_capacity = idx * 2;
@@ -32,3 +38,15 @@ void u_d_arr_ptr_free(d_array_ptr_t *arr) {
   free(arr->arr);
   arr->arr = NULL;
 }
+
+void u_d_arr_free_cb(d_array_ptr_t *arr, u_d_arr_free_callback *callback) {
+  for (int i = 0; i < arr->length; i++) {
+    if (arr->arr[i] != NULL) {
+      callback(arr->arr[i]);
+    }
+  }
+  arr->capacity = 0;
+  arr->length = 0;
+  free(arr->arr);
+  arr->arr = NULL;
+}

src/utils/d_array.h

@@ -1,7 +1,10 @@
 #ifndef D_ARRAY_H
 #define D_ARRAY_H
 /* Dynamic array of numbers */
+
+#include <stddef.h>
 #include <stdint.h>
+
 typedef struct d_array_ptr_t {
   int32_t capacity;
   int32_t length;
@@ -10,8 +13,12 @@ typedef struct d_array_ptr_t {
   void *last_el;
 } d_array_ptr_t;
 
+typedef void *u_d_arr_free_callback(void *arg);
+
 void u_d_arr_ptr_init(d_array_ptr_t *arr, int32_t init_capacity);
 void u_d_arr_ptr_add(d_array_ptr_t *arr, void *ptr, int32_t idx);
 void u_d_arr_ptr_free(d_array_ptr_t *arr);
+void u_d_array_append(d_array_ptr_t *arr, void *el_ptr, size_t el_len);
+void u_d_arr_free_cb(d_array_ptr_t *arr, u_d_arr_free_callback *callback);
 
 #endif

src/utils/dlist.c

@@ -0,0 +1,63 @@
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+typedef struct dlist_el_t {
+  struct dlist_el_t *next;
+  struct dlist_el_t *previous;
+  void *el_ptr;
+} dlist_el_t;
+
+typedef struct dlist_t {
+  dlist_el_t *start;
+  dlist_el_t *current;
+  size_t len;
+} dlist_t;
+
+void dlist_add(dlist_t *dlist, void *el_ptr, int el_siz, bool prepend);
+
+dlist_t *dlist_init(void *el_ptr, int el_siz) {
+  dlist_t *dlist = malloc(sizeof(dlist_t));
+  dlist->len = 0;
+  dlist->current = NULL;
+  dlist->start = NULL;
+
+  if (el_ptr != NULL) {
+    dlist_add(dlist, el_ptr, el_siz, false);
+  }
+
+  return dlist;
+}
+
+void dlist_add(dlist_t *dlist, void *el_ptr, int el_siz, bool prepend) {
+  dlist_el_t *d_el = malloc(sizeof(dlist_el_t));
+  d_el->el_ptr = malloc(el_siz);
+  memcpy(d_el->el_ptr, el_ptr, el_siz);
+
+  if (dlist->start == NULL) {
+    d_el->previous = NULL;
+    d_el->next = NULL;
+    dlist->start = d_el;
+    dlist->current = d_el;
+  } else if (prepend) {
+    d_el->previous = NULL;
+    d_el->next = dlist->start;
+    dlist->start = d_el;
+  } else {
+    d_el->next = NULL;
+    dlist->current->next = d_el;
+    dlist->current = d_el;
+  }
+  dlist->len++;
+}
+
+void *dlist_get_current(dlist_t *dlist) {
+    return dlist->current->el_ptr;
+}
+
+void *dlist_it_prev(dlist_t *dlist) {
+    dlist->current = dlist->current->previous;
+    return dlist->current;
+}

src/windows/text_edit.c

@@ -7,9 +7,7 @@
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
-#include <stdio.h>
 #include <stdlib.h>
-#include <string.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <utils.h>
@@ -20,27 +18,42 @@
 
 /* TODO: create dynamic array of endline positions */
 
+/*
+  Массив d_array, состоящие из элементов, описывающий строки.
+  В строках записывать: длину, номер строки.
+*/
+
 static void w_te_cb(w_cb_args_t *args) {
   app_t *app = args->app;
   int32_t key = *((int32_t *)args->data);
   w_te_ui_t *fui = app->query_args->main_ui->ui;
+  w_te_ui_line_t *line = NULL;
+
   switch (key) {
   case KEY_BACKSPACE:
   case KEY_DL:
-    fui->text[fui->text_len--] = 0;
+    fui->line[fui->line_len--] = 0;
     break;
   case KEY_UP:
     fui->cur_shift_pos.y--;
     wchar_t *nl_ptr = NULL;
-    wchar_t *line_start = fui->text;
-
+    wchar_t *line_start = fui->line;
     break;
   case KEY_DOWN:
     fui->cur_shift_pos.y++;
     break;
+  case '\n':
+    line = malloc(sizeof (w_te_ui_line_t));
+    line->text = malloc(sizeof (wchar_t ) * (fui->line_len + 1));
+    wcscpy(line->text, fui->line);
+    line->capacity = line->len = fui->line_len;
+    u_d_array_append(&(fui->lines_arr), fui->line, fui->line_len);
+    fui->line[0] = 0;
+    fui->line_len = 0;
+    break;
   default:
-    fui->text[fui->text_len++] = key;
-    fui->text[fui->text_len] = 0;
+    fui->line[fui->line_len++] = key;
+    fui->line[fui->line_len] = 0;
   }
 }
 
@@ -112,14 +125,15 @@ w_te_ui_t *w_te_init_win(app_t *app) {
   app->top_text = malloc(sizeof(wchar_t) * (top_text_len + 1));
   wcsncpy(app->top_text, top_text, top_text_len);
   app->top_text[top_text_len] = 0;
+  u_d_arr_ptr_init(&(fui->lines_arr), INBUFSIZE);
   return fui;
 }
 
-void w_te_reset(w_te_ui_t *fl_ui) {
-  fl_ui->text[0] = 0;
-  fl_ui->cur_shift_pos.x = 0;
-  fl_ui->cur_shift_pos.y = 0;
-  fl_ui->text_len = 0;
+void w_te_reset(w_te_ui_t *fui) {
+  fui->line[0] = 0;
+  fui->cur_shift_pos.x = 0;
+  fui->cur_shift_pos.y = 0;
+  fui->line_len = 0;
 }
 
 void w_te_reset_app(void *app) {
@@ -146,32 +160,39 @@ void w_te_draw(w_te_ui_t *fui) {
     mvwprintw(win, p_y + i, p_x, "%*s", fui->w.sz.x, "");
   }
 
-  int len_rest = fui->text_len;
+  int len_rest = fui->line_len;
 
-  wchar_t *cur_ptr = fui->text;
+  wchar_t *cur_ptr = fui->line;
   wchar_t *nl_ptr = wcschr(cur_ptr, '\n');
+  // if (nl_ptr == NULL) {
+  //   mvwaddnwstr(win, p_y, p_x, cur_ptr, fui->line_len);
+  //   p_x += fui->line_len;
+  // } else {
+  //   while (true) {
+  //     mvwaddnwstr(win, p_y++, p_x, cur_ptr, nl_ptr - cur_ptr);
+  //     cur_ptr = nl_ptr + 1;
+  //     nl_ptr = wcschr(cur_ptr, '\n');
+  //     if (nl_ptr == NULL) {
+  //       int tlen = wcslen(cur_ptr);
+  //       mvwaddnwstr(win, p_y, p_x, cur_ptr, tlen);
+  //       p_x += tlen;
+  //       break;
+  //     }
+  //   }
+  // }
+  w_te_ui_line_t *line_arr_el = NULL;
+  for (int i = 0; i < fui->lines_arr.length; i++) {
+    line_arr_el = (w_te_ui_line_t *) fui->lines_arr.arr[i];
+    mvwaddnwstr(win, p_y++, p_x, line_arr_el->text, line_arr_el->len);
+  }
 
-  if (nl_ptr == NULL) {
-    mvwaddnwstr(win, p_y, p_x, cur_ptr, fui->text_len);
-    p_x += fui->text_len;
-  } else {
-    while (true) {
-      mvwaddnwstr(win, p_y++, p_x, cur_ptr, nl_ptr - cur_ptr);
-      cur_ptr = nl_ptr + 1;
-      nl_ptr = wcschr(cur_ptr, '\n');
-      if (nl_ptr == NULL) {
-        int tlen = wcslen(cur_ptr);
-        mvwaddnwstr(win, p_y, p_x, cur_ptr, tlen);
-        p_x += tlen;
-        break;
-      }
-    }
-  }
+  mvwaddnwstr(win, p_y, p_x, fui->line, fui->line_len);
 
   fui->cur_abs_pos.y = p_y;
   fui->cur_abs_pos.x = p_x;
 
-  wmove(win, fui->cur_abs_pos.y + fui->cur_shift_pos.y, fui->cur_abs_pos.x + fui->cur_shift_pos.x);
+  wmove(win, fui->cur_abs_pos.y + fui->cur_shift_pos.y,
+        fui->cur_abs_pos.x + fui->cur_shift_pos.x);
 
   p_x = 1;
 

src/windows/text_edit.h

@@ -15,9 +15,9 @@
 typedef struct {
   w_t w;
   WINDOW *win;
-  wchar_t text[INBUFSIZE * 10];
-  int text_len;
-  int text_cur_pos;
+  wchar_t line[INBUFSIZE * 10];
+  int line_len;
+  int line_cur_pos;
   struct {
     int x;
     int y;
@@ -26,9 +26,16 @@ typedef struct {
     int x;
     int y;
   } cur_abs_pos;
-  p_file_t *file_ptr; // TODO: уточнить
+  p_file_t *file_ptr;
+  d_array_ptr_t lines_arr;
 } w_te_ui_t;
 
+typedef struct {
+  int len;
+  wchar_t *text; /* TODO: make dynamic */
+  int capacity;
+} w_te_ui_line_t;
+
 void w_te_draw(w_te_ui_t *fl_ui);
 void w_te_destroy(w_te_ui_t **fui);
 void w_te_reset(w_te_ui_t *fl_ui);