Class evab::CompositeBase¶

ClassList > evab > CompositeBase

Abstract base class for composite elements that can manage child focus. More...

Inherits the following classes: evab::ElementBase

Public Functions¶

Type	Name
ElementBase *	GetFocused () const Gets the current (focused) child.
bool	IsFocused (ElementBase * aChild) Checks if a child is currently focused.
virtual bool	OnKey (Keys aKey) override Handles key events by forwarding to focused child.

Type	Name
void	Draw (Screen * aScreen, Coor aPos, Coor aSize, unsigned char aIsFocused) Draws the element on the specified screen.
void	Freeze () Make element insensitive to redraw method.
virtual bool	OnKey (Keys aKey) Handles key events for the element.

Type	Name
void	focusChild (ElementBase * aChild) Sets the focused child element.

Type	Name
virtual void	drawer (Screen * aScreen, Coor aPos, Coor aSize, unsigned char aIsFocused) = 0 Pure virtual method for drawing the element.
virtual void	freezer () Virtual method for freezing the element.
bool	isFrozen () Checks if the element is currently freezed.
void	redraw () Redraws the element on the current screen.

Provides focus management and key event routing for container elements.

Gets the current (focused) child.

ElementBase * evab::CompositeBase::GetFocused () const

Returns:

Pointer to current child, or nullptr if none

Checks if a child is currently focused.

bool evab::CompositeBase::IsFocused (
    ElementBase * aChild
)

Parameters:

Returns:

true if the child is focused

Handles key events by forwarding to focused child.

virtual bool evab::CompositeBase::OnKey (
    Keys aKey
) override

Parameters:

Returns:

true if the key was handled, false otherwise

Sets the focused child element.

void evab::CompositeBase::focusChild (
    ElementBase * aChild
)

Parameters:

The documentation for this class was generated from the following file src/evabCompositeBase.h