[fix] box cursor rendering and selection

Author: mrsrina

include/ekg/io/utf.hpp

@@ -103,24 +103,9 @@ namespace ekg {
     std::string_view string
   );
 
-  /**
-   * Fast splitter specialized in `\n` or `\r\n` (non OS unix-based).
-   * UTF to sinalize the string unicode-like suggested by EKG. 
-   */
-  void utf8_split_new_line(
-    std::string_view string,
-    std::vector<std::string> &utf8_split_new_lined
-  );
-
-  /**
-   * Return true if `string` contains `find_char`,
-   * then it must allocate and insert elements to
-   * `p_string_split_list` ptr.
-   */
-  bool utf8_split(
-    std::vector<std::string> &string_split_list,
-    const std::string &string,
-    char find_char
+  size_t utf8_split_endings(
+    std::string_view line,
+    std::vector<std::string> &splitted
   );
 
   template<typename t>
@@ -151,41 +136,46 @@ namespace ekg {
   protected:
     std::vector<ekg::io::chunk_t> loaded_chunks {};
     size_t lines_per_chunk_limit {10};
+    size_t total_lines {};
     size_t total_chars {};
+    size_t prev_lines {};
     size_t prev_total_chars {};
+
     bool was_audited {};
     bool should_count {};
+  protected:
+    void swizzle(
+      size_t chunk_index,
+      size_t line_index,
+      std::vector<std::string> &to_swizzle,
+      bool skip_first_line
+    );
   public:
-    static std::string line_not_found;
-  public:
-    std::string read(size_t index);
-    std::string &write(size_t index);
+    void push_back(std::string_view line);
+    void set(size_t index, std::string_view line);
 
     void insert(
       size_t index,
       ekg::io::chunk_t &to_insert_chunk
     );
-
+    
     void insert(
       size_t index,
-      const std::string &line
+      std::string_view line
     );
 
     void erase(
       size_t begin,
       size_t end
     );
 
-    void push_back(const std::string &line);
-    std::string &emplace_back();
-
-    std::vector<ekg::io::chunk_t> &data();
+    std::vector<ekg::io::chunk_t> &chunks_data();
+    size_t length_of_chunks();
 
-    size_t size();
-    size_t lines();
-    size_t chunks();
+    std::string at(size_t index);
+    size_t length_of_lines();
+    size_t length_of_chars();
 
-    void unset_audited();
     bool audited();
   };
 }

include/ekg/ui/textbox/textbox.hpp

@@ -80,19 +80,12 @@ namespace ekg {
       }
     };
 
-    struct untracked_line_ending_t {
-    public:
-      ekg::vec2_t<size_t> indices {};
-      std::string text {};
-    };
-
     struct widget_t {
     public:
       ekg::rect_t<float> rect_text_size {};
       ekg::scrollbar_t scrollbar {};
       std::vector<ekg::textbox_t::cursor_t> cursors {};
       std::vector<ekg::textbox_t::select_draw_layer_t> layers_select {};
-      std::vector<ekg::textbox_t::untracked_line_ending_t> line_ending_untracked {};
       size_t last_layers_select_size {};
     };
 

src/handler/input/handler.cpp

@@ -521,7 +521,7 @@ void ekg::handler::input::update() {
   #endif
 
   ekg::reset_if_reach(this->input.ui_timing, 1000);
-  ekg::timing_t::second = this->input.ui_timing.elapsed_ticks;
+  ekg::timing_t::second = this->input.ui_timing.current_ticks;
 }
 
 void ekg::handler::input::insert_input_bind(