gccv::Circle Class Reference

Circles. More...

#include <circle.h>

Inheritance diagram for gccv::Circle:

Public Member Functions
	Circle (Canvas *canvas, double x, double y, double radius)
	Circle (Group *parent, double x, double y, double radius, ItemClient *client=NULL)
virtual	~Circle ()
void	SetPosition (double x, double y)
void	GetPosition (double &x, double &y)
double	Distance (double x, double y, Item **item) const
void	Draw (cairo_t *cr, bool is_vector) const
void	Move (double x, double y)
void	SetRadius (double val)
double	GetRadius (void) const
Public Member Functions inherited from gccv::FillItem
	FillItem (Canvas *canvas)
	FillItem (Group *parent, ItemClient *client=NULL)
virtual	~FillItem ()
void	SetFillColor (GOColor val)
GOColor	GetFillColor (void) const
Public Member Functions inherited from gccv::LineItem
	LineItem (Canvas *canvas)
	LineItem (Group *parent, ItemClient *client=NULL)
virtual	~LineItem ()
GOColor	GetEffectiveLineColor () const
void	ApplyLine (cairo_t *cr) const
void	SetDashes (double const *dashes, int num_dashes, double offset)
void	SetLineWidth (double val)
double	GetLineWidth (void) const
void	SetLineColor (GOColor val)
GOColor	GetLineColor (void) const
void	SetAutoColor (bool val)
bool	GetAutoColor (void) const
Public Member Functions inherited from gccv::Item
	Item (Canvas *canvas)
	Item (Group *parent, ItemClient *client=NULL)
virtual	~Item ()
void	GetBounds (double &x0, double &y0, double &x1, double &y1) const
void	Invalidate () const
void	SetVisible (bool visible)
virtual void	BuildPath (cairo_t *cr) const
virtual bool	Draw (cairo_t *cr, double x0, double y0, double x1, double y1, bool is_vector) const
bool	IsTopLevel () const
void	SetClient (ItemClient *val)
ItemClient *	GetClient (void)
Group const *	GetParent (void) const
bool	GetVisible (void) const
void	SetOperator (cairo_operator_t val)
cairo_operator_t	GetOperator (void) const

Protected Member Functions
void	UpdateBounds ()

Additional Inherited Members
Protected Attributes inherited from gccv::Item
double	m_x0
double	m_y0
double	m_x1
double	m_y1

Detailed Description

Circles.

Circle item.

Definition at line 39 of file circle.h.

Constructor & Destructor Documentation

gccv::Circle::Circle	(	Canvas *	canvas,
		double	x,
		double	y,
		double	radius
	)

Parameters

canvas	a Canvas.
x	the circle center horizontal position.
y	the circle center vertical position.
radius	the circle radius.

Creates a new Circle and sets it as a child of the root Group of canvas.

gccv::Circle::Circle	(	Group *	parent,
		double	x,
		double	y,
		double	radius,
		ItemClient *	client = NULL
	)

Parameters

parent	the Group to which the new Circle will be added.
x	the circle center horizontal position.
y	the circle center vertical position.
radius	the circle radius.
client	the ItemClient for the new Circle if any.

Creates a new Circle inside parent and sets client as its associated ItemClient.

virtual gccv::Circle::~Circle ( )

virtual

The destructor.

Member Function Documentation

double gccv::Circle::Distance ( double  x, double  y, Item **  item  ) const

virtual

Parameters

x	horizontal position
y	vertical position
item	where to store the Item.

Implementation of Item::Distance() for the Circle class. Sets item to this.

Reimplemented from gccv::Item.

void gccv::Circle::Draw ( cairo_t *  cr, bool  is_vector  ) const

virtual

Parameters

cr	a cairo_t.
is_vector	whether the cairo_t is a vectorial context.

Draws the Circle to cr.

Reimplemented from gccv::Item.

void gccv::Circle::GetPosition	(	double &	x,
		double &	y
	)

Parameters

x	where to store the circle center horizontal position.
y	where to store the circle center vertical position.

Retrieves the position of the circle center.

gccv::Circle::GetRadius ( void  ) const

inline

Returns

the circle radius.

Definition at line 123 of file circle.h.

void gccv::Circle::Move ( double  x, double  y  )

virtual

Parameters

x	the horizontal deplacement
y	the vertical deplacement

Moves the Circle.

Reimplemented from gccv::Item.

void gccv::Circle::SetPosition	(	double	x,
		double	y
	)

Parameters

x	the new circle center horizontal position.
y	the new circle center vertical position.

Sets the position of the circle center.

gccv::Circle::SetRadius ( double  radius )

inline

Parameters

radius

the new circle radius.

Sets the circle radius.

Definition at line 123 of file circle.h.

void gccv::Circle::UpdateBounds ( )

protectedvirtual

Evaluates the Circle bounds.

Reimplemented from gccv::Item.

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

• circle.h