1 files changed, 20 insertions, 6 deletions

diff --git a/modules/TUI/module.jai b/modules/TUI/module.jai
index d0373f9..2fb1233 100644
--- a/modules/TUI/module.jai
+++ b/modules/TUI/module.jai
@@ -125,10 +125,21 @@ Commands :: struct #type_info_none {
     // Draw/text.
     DrawingMode             :: "\e(0";
     TextMode                :: "\e(B";
-    ClearScreen             :: "\e[2J";
-    ClearLine               :: "\e[2K";
+    ClearToEndOfScreen      :: "\e[0J";     // From current cursor position (inclusive) to end of screen.
+    ClearFromStartOfScreen  :: "\e[1J";     // From start of screen to current cursor position.
+    ClearScreen             :: "\e[2J";     // Leaves cursor in top left corner position.
     ClearScrollBack         :: "\e[3J";
+    ClearToEndOfLine        :: "\e[0K";     // From current cursor position (inclusive) to end of line.
+    ClearFromStartOfLine    :: "\e[1K";     // From start of line to current cursor position.
+    ClearLine               :: "\e[2K";
     SetGraphicsRendition    :: "\e[%m";
+
+    // Text Modification.
+    InsertCharacters        :: "\e[%@";     // Insert % spaces at curret cursor position (shifts existing text to the right).
+    DeleteCharacters        :: "\e[%P";     // Delete % characters at the current cursor position (inserts space characters from the right).
+    EraseCharacters         :: "\e[%X";     // Erase % characters from the current cursor position by overwriting them with space characters.
+    InsertLines             :: "\e[%L";     // Insert % lines into the buffer at the current cursor position.
+    DeleteLines             :: "\e[%M";     // Deletes % lines from the buffer, starting with the row the cursor is on.
     
     // Character encoding.
     EncodingIEC2022         :: "\e%@";
@@ -536,12 +547,12 @@ read_input_line :: (count_limit: int, is_visible: bool = true) -> string, Key {
         if is_visible {
             print_to_builder(*builder, Commands.SetCursorPosition, y, x);
             append(*builder, str);
-            for chars_count..count_limit-1 append(*builder, " ");
+            if count_limit > chars_count then print_to_builder(*builder, Commands.EraseCharacters, count_limit-chars_count);
         }
         else {
             print_to_builder(*builder, Commands.SetCursorPosition, y, x);
             for 1..chars_count append(*builder, "*");
-            for chars_count..count_limit-1 append(*builder, " ");
+            if count_limit > chars_count print_to_builder(*builder, Commands.EraseCharacters, count_limit-chars_count);
         }
         print_to_builder(*builder, Commands.SetCursorPosition, y, x+idx);
         write_builder(*builder);
@@ -615,7 +626,7 @@ flush_input :: () {
     input_string.count = 0;
 }
 
-draw_box :: (x: int, y: int, width: int, height: int) {
+draw_box :: (x: int, y: int, width: int, height: int, clear_inside := false) {
     assert_is_active();
     assert(x > 0 && y > 0 && width > 1 && height > 1, "Invalid arguments passed to draw_box(): 'x' and 'y' must be greater-than 0; 'width' and 'height' must be greater-than 1.");
     
@@ -641,10 +652,13 @@ draw_box :: (x: int, y: int, width: int, height: int) {
     for idx: y+1..y+height-2 {
         print_to_builder(builder, Commands.SetCursorPosition, idx, x);
         append(builder, Drawings.LineV);
+        if clear_inside {
+            print_to_builder(builder, Commands.EraseCharacters, width-2);
+        }
         print_to_builder(builder, Commands.SetCursorPosition, idx, x+width-1);
         append(builder, Drawings.LineV);
     }
-
+    
     // Draw bottom line.
     print_to_builder(builder, Commands.SetCursorPosition, y+height-1, x);
     append(builder, Drawings.CornerBL);