WordPress includes numerous default widgets, many of which may be unnecessary for specific sites. Removing unused widgets can streamline the admin interface and reduce clutter. This is achieved by adding code to the theme's functions.php file to unregister widgets during the widgets_init action. One...
AbsorbPointer and IgnorePointer both prevent widgets in their subtree from reacting to pointer input (tap, drag, scroll). The difference lies in how they partiicpate in hit testing: AbsorbPointer: removes its descendants from hit testing but is itself still hit. Encestors can receive the event; widg...
User interface uses QWidget as the top-level window, QLineEdit to show and edit the expression/result, and QPushButton for keypad input. Normalize user input as it’s typed to simplify later evaluation. Parentheses are tracked sothat a closing parenthesis is only allowed when a matching opening paren...