Merge pull request #43451 from timothyqiu/move-line-cursor

Keep cursor relative position after move lines up/down in text editor

editor/code_editor.cpp

@@ -1138,6 +1138,7 @@ void CodeTextEditor::move_lines_up() {
 		int from_col = text_editor->get_selection_from_column();
 		int to_line = text_editor->get_selection_to_line();
 		int to_column = text_editor->get_selection_to_column();
+		int cursor_line = text_editor->cursor_get_line();
 
 		for (int i = from_line; i <= to_line; i++) {
 			int line_id = i;
@@ -1155,7 +1156,9 @@ void CodeTextEditor::move_lines_up() {
 		}
 		int from_line_up = from_line > 0 ? from_line - 1 : from_line;
 		int to_line_up = to_line > 0 ? to_line - 1 : to_line;
+		int cursor_line_up = cursor_line > 0 ? cursor_line - 1 : cursor_line;
 		text_editor->select(from_line_up, from_col, to_line_up, to_column);
+		text_editor->cursor_set_line(cursor_line_up);
 	} else {
 		int line_id = text_editor->cursor_get_line();
 		int next_id = line_id - 1;
@@ -1181,6 +1184,7 @@ void CodeTextEditor::move_lines_down() {
 		int from_col = text_editor->get_selection_from_column();
 		int to_line = text_editor->get_selection_to_line();
 		int to_column = text_editor->get_selection_to_column();
+		int cursor_line = text_editor->cursor_get_line();
 
 		for (int i = to_line; i >= from_line; i--) {
 			int line_id = i;
@@ -1198,7 +1202,9 @@ void CodeTextEditor::move_lines_down() {
 		}
 		int from_line_down = from_line < text_editor->get_line_count() ? from_line + 1 : from_line;
 		int to_line_down = to_line < text_editor->get_line_count() ? to_line + 1 : to_line;
+		int cursor_line_down = cursor_line < text_editor->get_line_count() ? cursor_line + 1 : cursor_line;
 		text_editor->select(from_line_down, from_col, to_line_down, to_column);
+		text_editor->cursor_set_line(cursor_line_down);
 	} else {
 		int line_id = text_editor->cursor_get_line();
 		int next_id = line_id + 1;