class Element

Defined in: C4Interface.h

Every user interface element is a subclass of the Element class.

Definition

class Element : public Transformable, public ExclusiveObservable<Element>, public UpdatableTree<Element>

Member Functions

`Element::GetElementType`	Returns the type of an element.
`Element::GetOwningWindow`	Returns the window to which an element belongs.
`Element::GetElementState`	Returns an element's current state.
`Element::SetElementState`	Sets an element's current state.
`Element::Show`	Puts an element in the visible state.
`Element::Hide`	Puts an element in the invisible state.
`Element::Enable`	Puts an element in the enabled state.
`Element::Disable`	Puts an element in the disabled state.
`Element::Visible`	Returns a boolean value indicating whether an element is visible.
`Element::Enabled`	Returns a boolean value indicating whether an element is enabled.

`Element::GetElementTransform`	Returns an element's local transform.
`Element::SetElementTransform`	Sets an element's local transform.
`Element::SetElementMatrix3D`	Sets the 3 × 3 portion of an element's local transform.
`Element::GetElementPosition`	Returns the translation portion of an element's local transform.
`Element::SetElementPosition`	Sets the translation portion of an element's local transform.

`Element::GetElementWidth`	Returns the width of an element.
`Element::GetElementHeight`	Returns the height of an element.
`Element::SetElementSize`	Sets the width and height of an element.

`Element::HandleMouseEvent`	Handles mouse events that are directed to an element.
`Element::HandleKeyboardEvent`	Handles keyboard events that are directed to an element.
`Element::CalculatePickBox`	Calculates the bounding box of an element's interactive area.
`Element::TestPickPoint`	Returns the part of an element in which the user clicked.
`Element::TriggerElement`	Triggers an element if it is enabled.
`Element::TrackTask`	Called once per frame while an element is being tracked.
`Element::FocusTask`	Called once per frame while an element has the keyboard focus.
`Element::Render`	Renders an element.

Constructor

Element(ElementType type, float width = 0.0F, float height = 0.0F);

Parameters

`type`	The type of the element.
`width`	The initial width of the element.
`height`	The initial height of the element.

Description

Base Classes

`Transformable`	Holds the element-to-world transform for an element.
`ExclusiveObservable<Element>`	Elements can be observed for state changes by a single observer.
`UpdatableTree<Element>`	Elements are stored in a hierachical updatable tree.