1 files changed, 60 insertions, 2 deletions

diff --git a/scene/gui/line_edit.cpp b/scene/gui/line_edit.cpp
index e063d3aeba..73188d6602 100644
--- a/scene/gui/line_edit.cpp
+++ b/scene/gui/line_edit.cpp
@@ -215,6 +215,27 @@ void LineEdit::_delete(bool p_word, bool p_all_to_right) {
 	}
 }
 
+void LineEdit::unhandled_key_input(const Ref<InputEvent> &p_event) {
+	Ref<InputEventKey> k = p_event;
+
+	if (k.is_valid()) {
+		if (!k->is_pressed()) {
+			return;
+		}
+		// Handle Unicode (with modifiers active, process after shortcuts).
+		if (has_focus() && editable && (k->get_unicode() >= 32)) {
+			selection_delete();
+			char32_t ucodestr[2] = { (char32_t)k->get_unicode(), 0 };
+			int prev_len = text.length();
+			insert_text_at_caret(ucodestr);
+			if (text.length() != prev_len) {
+				_text_changed();
+			}
+			accept_event();
+		}
+	}
+}
+
 void LineEdit::gui_input(const Ref<InputEvent> &p_event) {
 	ERR_FAIL_COND(p_event.is_null());
 
@@ -385,9 +406,45 @@ void LineEdit::gui_input(const Ref<InputEvent> &p_event) {
 
 	if (k.is_valid()) {
 		if (!k->is_pressed()) {
+			if (alt_start && k->get_keycode() == Key::ALT) {
+				alt_start = false;
+				if ((alt_code > 0x31 && alt_code < 0xd800) || (alt_code > 0xdfff && alt_code <= 0x10ffff)) {
+					char32_t ucodestr[2] = { (char32_t)alt_code, 0 };
+					insert_text_at_caret(ucodestr);
+				}
+				accept_event();
+				return;
+			}
 			return;
 		}
 
+		// Alt+ Unicode input:
+		if (k->is_alt_pressed()) {
+			if (!alt_start) {
+				if (k->get_keycode() == Key::KP_ADD) {
+					alt_start = true;
+					alt_code = 0;
+					accept_event();
+					return;
+				}
+			} else {
+				if (k->get_keycode() >= Key::KEY_0 && k->get_keycode() <= Key::KEY_9) {
+					alt_code = alt_code << 4;
+					alt_code += (uint32_t)(k->get_keycode() - Key::KEY_0);
+				}
+				if (k->get_keycode() >= Key::KP_0 && k->get_keycode() <= Key::KP_9) {
+					alt_code = alt_code << 4;
+					alt_code += (uint32_t)(k->get_keycode() - Key::KP_0);
+				}
+				if (k->get_keycode() >= Key::A && k->get_keycode() <= Key::F) {
+					alt_code = alt_code << 4;
+					alt_code += (uint32_t)(k->get_keycode() - Key::A) + 10;
+				}
+				accept_event();
+				return;
+			}
+		}
+
 		if (context_menu_enabled) {
 			if (k->is_action("ui_menu", true)) {
 				_ensure_menu();
@@ -1431,7 +1488,7 @@ bool LineEdit::get_draw_control_chars() const {
 	return draw_control_chars;
 }
 
-void LineEdit::set_structured_text_bidi_override(Control::StructuredTextParser p_parser) {
+void LineEdit::set_structured_text_bidi_override(TextServer::StructuredTextParser p_parser) {
 	if (st_parser != p_parser) {
 		st_parser = p_parser;
 		_shape();
@@ -1439,7 +1496,7 @@ void LineEdit::set_structured_text_bidi_override(Control::StructuredTextParser p
 	}
 }
 
-Control::StructuredTextParser LineEdit::get_structured_text_bidi_override() const {
+TextServer::StructuredTextParser LineEdit::get_structured_text_bidi_override() const {
 	return st_parser;
 }
 
@@ -2445,6 +2502,7 @@ LineEdit::LineEdit(const String &p_placeholder) {
 	set_focus_mode(FOCUS_ALL);
 	set_default_cursor_shape(CURSOR_IBEAM);
 	set_mouse_filter(MOUSE_FILTER_STOP);
+	set_process_unhandled_key_input(true);
 
 	caret_blink_timer = memnew(Timer);
 	add_child(caret_blink_timer, false, INTERNAL_MODE_FRONT);