gccv::Polygon Class Reference

Polygon. More...

#include <polygon.h>

Inheritance diagram for gccv::Polygon:

Public Member Functions
	Polygon (Canvas *canvas, std::list< Point > &points)
	Polygon (Group *parent, std::list< Point > &points, ItemClient *client=NULL)
virtual	~Polygon ()
void	SetPoints (std::list< Point > &points)
void	AddPoint (double x, double y)
double	Distance (double x, double y, Item **item) const
void	Draw (cairo_t *cr, bool is_vector) const
virtual void	BuildPath (cairo_t *cr) const
void	Move (double x, double y)
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 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 ()

Protected Attributes
std::list< Point >	m_Points

Detailed Description

Polygon.

Polygon item.

Definition at line 41 of file polygon.h.

Constructor & Destructor Documentation

gccv::Polygon::Polygon	(	Canvas *	canvas,
		std::list< Point > &	points
	)

Parameters

canvas	a Canvas.
points	the vertices positions.

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

gccv::Polygon::Polygon	(	Group *	parent,
		std::list< Point > &	points,
		ItemClient *	client = NULL
	)

Parameters

parent	the Group to which the new PolyLine will be added.
points	the vertices positions.
client	the ItemClient for the new PolyLine if any.

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

virtual gccv::Polygon::~Polygon ( )

virtual

The destructor.

Member Function Documentation

void gccv::Polygon::AddPoint	(	double	x,
		double	y
	)

Parameters

x	horizontal position of the new vertex.
y	vertical position of the new vertex.

Apends a new vrtex to the vertices list.

virtual void gccv::Polygon::BuildPath ( cairo_t *  cr ) const

virtual

Parameters

cr	a cairo_t.

Builds the cairo path corresponding to the Polygon bounds. Don't draw anything.

Reimplemented from gccv::Item.

double gccv::Polygon::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 Polygon class. Sets item to this.

Reimplemented from gccv::Item.

void gccv::Polygon::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 Polygon to cr.

Reimplemented from gccv::Item.

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

virtual

Parameters

x	the horizontal deplacement
y	the vertical deplacement

Moves the Polygon.

Reimplemented from gccv::Item.

void gccv::Polygon::SetPoints

(

std::list< Point > &

points

)

Parameters

points

the new vertices positions.

Sets the vertices for the Polygon instance.

void gccv::Polygon::UpdateBounds ( )

protectedvirtual

Evaluates the Polygon bounds.

Reimplemented from gccv::Item.

Member Data Documentation

std::list<Point> gccv::Polygon::m_Points

protected

The Polygon vertices.

Definition at line 119 of file polygon.h.

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

• polygon.h