Canvas::Abstract Class Reference

Container class. More...

#include <canvas.h>

Inheritance diagram for Canvas::Abstract:

[legend]List of all members.

Public Member Functions
	Abstract ()
const QList< Item * > *	items () const
Item *	itemAt (QPoint pos) const
Item *	itemAt (int x, int y) const
QList< Item * >	itemsAt (QPoint pos) const
QList< Item * >	itemsAt (int x, int y) const
virtual void	ensureAnimating ()=0
virtual void	ensurePendingUpdate ()=0
virtual void	invalidate (const QRect &r, bool translate=true)=0
virtual void	invalidate (const QRegion &r, bool translate=true)=0
virtual class Widget *	topLevelCanvas ()=0
Protected Attributes
QList< Item * >	m_items
QList< Item * >	m_animated_items
Friends
class	Item

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Detailed Description

Container class.

A Abstract is a set of canvas items.

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Constructor & Destructor Documentation

Canvas::Abstract::Abstract (   )

The constructor

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Member Function Documentation

virtual void Canvas::Abstract::ensureAnimating (   )  [pure virtual]

Virtual function to let know the canvas that it has animated items in it

virtual void Canvas::Abstract::ensurePendingUpdate (   )  [pure virtual]

Virtual function to ensure an update is pending, called from children

virtual void Canvas::Abstract::invalidate (  const QRegion &  r, bool  translate = true )  [pure virtual]

Virtual function to update a region

virtual void Canvas::Abstract::invalidate (  const QRect &  r, bool  translate = true )  [pure virtual]

Virtual function to update a rect

Item* Canvas::Abstract::itemAt (  int  x, int  y )  const [inline]

Overload, same as above

Item * Canvas::Abstract::itemAt (  QPoint  pos  )  const

Helper function to retrieve the topmost item at the given position

const QList<Item*>* Canvas::Abstract::items (   )  const [inline]

Returns a const pointer to the list holding all the items in the canvas

QList<Item*> Canvas::Abstract::itemsAt (  int  x, int  y )  const [inline]

Overload, same as above

QList< Item * > Canvas::Abstract::itemsAt (  QPoint  pos  )  const

Helper function to retrieve all the items at the given position, starting from the topmost one.

virtual class Widget* Canvas::Abstract::topLevelCanvas (   )  [pure virtual]

Returns the toplevel non-group Widget object Implemented in Canvas::Group, and Canvas::Widget.

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The documentation for this class was generated from the following files:

• abstract.h
• canvas.cpp

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