Common methods for all Controls

All controls (including Window and Desktop) have a set of common methods obtaing via Deref trait over a common base object.

Status related methods

Method	Purpose
`set_visible(...)`	Shows or hides a controls (will have no change over a Desktop)
`is_visible()`	Returns true if the current control is visible, or false otherwise
`set_enable(...)`	Changes the enable/disable status of a control (has no effect on a Window or a Desktop control
`is_enabled()`	Returns true if the current control is enabled, or false otherwise
`has_focus()`	Returns true if the current control has focus, or false otherwise
`can_receive_input()`	Returns true if the current control could receive mouse or keyboard events if focused or false otherwise
`is_mouse_over()`	Returns true if the mouse cursor is over the current control

Layout related methods

Method	Purpose
`size()`	Returns the size (widthxheight) for the current control
`client_size()`	Returns the client size (the size minus the margins) for the current control
`set_size(...)`	Sets the new size for a control (to a specified size given by parameters `width` and `height`). Keep in mind that this method will change the existing layout to an a layout based on top-left corner (given by controls `x` and `y` coordonates) and the new provided size. Any dock or alignment properties will be removed.This method has no effect on a Desktop control.
`position()`	Returns the relatove position (x,y) of the current control to its parent.
`set_position(...)`	Sets the new position for a control (to a specified coordonate given by parameters `x` and `y`). Keep in mind that this method will change the existing layout to an a layout based on top-left corner (given by coordonates `x` and `y`) and the controls current width and height. Any dock or alignment properties will be removed.This method has no effect on a Desktop control.
`set_components_toolbar_margins(...)`	Sets the left and top components margins - for scrollbars, filters, etc
`update_layout(...)`	Updates the layout of a control

Hotkey related methods

Method	Purpose
`hotkey()`	Returns the hotkey associated witha control or `Key::None` otherwise
`set_hotkey()`	Sets the hotkey for a control. To clear the hotkey call this function like this: `.set_hotkey(Key::None)`

Update methods

Method	Purpose
`request_focus()`	Request the framework to assign the focus to the current control
`request_update()`	Request the framework to update itself. This actian will update the commandbar, menus and the position of the controls.

Menu related methods

Method	Purpose
`register_menu(...)`	Register a menu into `AppCUI` framework and returns a Handle for it
`show_menu(...)`	Show a popup menu that was registered by the current control
`menuitem(...)`	Returns an immutable reference to a menu item based on two handles: one for the menu, and one for the menu item
`menuitem_mut(...)`	Returns an mutable reference to a menu item based on two handles: one for the menu, and one for the menu item

Theme related methods

Method	Purpose
`theme()`	Returns a reference to the theme object that is being used by the application. This is the same reference an objectr receives when OnPaint method is being called.

Application Bar related methods

Method	Purpose
`appbar()`	Returns a reference to the application bar object that is being used by the application. This method will panic if the application bar is not enabled (via the `app_bar()` method when building the application)