ONE::gui::Scrollable Class Reference

Inheritance diagram for ONE::gui::Scrollable:

[legend]List of all members.

---

Detailed Description

abstract base for Component s that may be added to a Viewport.

Author:

Daniel Seibert

Public Member Functions
virtual int	getScrollStep (const Bounds &visRect, Orientation o, bool dir) const =0
	calculates the size of the next scrolling step
Viewport *	getViewport () const
	accesses the surrounding Viewport
	Scrollable ()
virtual	~Scrollable ()

---

Constructor & Destructor Documentation

ONE::gui::Scrollable::Scrollable (   )

virtual ONE::gui::Scrollable::~Scrollable (   )  [virtual]

---

Member Function Documentation

virtual int ONE::gui::Scrollable::getScrollStep (  const Bounds &  visRect, Orientation  o, bool  dir )  const [pure virtual]

calculates the size of the next scrolling step Scrollable s that have logical sections such as rows and/or columns should return the distance needed to fully expose the next section. Other components should return a sensible value. The return value's sign must match the dir parameter, i.e. it must be negative for left or upward and positive for right or downward scrolling. the rectangle displayed by the Viewport o the scroll orientation, HORIZONTAL or VERTICAL dir the scroll direction, true for positive (right/down) or false for negative (left/up) scroll direction Returns: the scrolling step size as specified above Implemented in ONE::gui::List.

Viewport* ONE::gui::Scrollable::getViewport (   )  const

accesses the surrounding Viewport Returns: the surrounding viewport or 0 if this object is not contained in a viewport

---