A drop or leaf item. More...

#include <leaf.h>

Inheritance diagram for gccv::Leaf:

Public Member Functions
	Leaf (Canvas *canvas, double x, double y, double radius)
	Leaf (Group parent, double x, double y, double radius, ItemClient client=NULL)
virtual	~Leaf ()
void	SetPosition (double x, double y)
void	GetPosition (double &x, double &y)
void	SetWidthFactor (double factor)
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
void	SetRotation (double val)
double	GetRotation (void) const
double	GetWidthFactor (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

A drop or leaf item.

The Leaf item looks like a drop or some type of tree leaf:

Definition at line 41 of file leaf.h.

Constructor & Destructor Documentation

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

Parameters

canvas	a Canvas.
x	the leaf origin horizontal position.
y	the leaf origin vertical position.
radius	the leaf radius.

Creates a new Leaf and sets it as a child of the root Group of canvas. The origin is the angular point, and the radius the distance between the origin and the opposite point.

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

Parameters

parent	the Group to which the new Leaf will be added.
x	the leaf origin horizontal position.
y	the leaf origin vertical position.
radius	the leaf radius.
client	the ItemClient for the new Leaf if any.

Creates a new Leaf inside parent and sets client as its associated ItemClient. The origin is the angular point, and the radius the distance between the origin and the opposite point.

virtual gccv::Leaf::~Leaf ( )

virtual

The destructor.

Member Function Documentation

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

Reimplemented from gccv::Item.

void gccv::Leaf::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 Leaf to cr.

Reimplemented from gccv::Item.

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

Parameters

x	where to store the leaf originhorizontal position.
y	where to store the leaf origin vertical position.

Retrieves the position of the leaf origin.

gccv::Leaf::GetRadius ( void ) const

inline

Returns: the current Leaf radius.

Definition at line 137 of file leaf.h.

gccv::Leaf::GetRotation ( void ) const

inline

Returns: the current Leaf orientation.

Definition at line 147 of file leaf.h.

gccv::Leaf::GetWidthFactor ( void ) const

inline

Returns: the width factor for the Leaf. Actually, the width is 0.8 * factor * radius.

Definition at line 152 of file leaf.h.

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

virtual

Parameters

x	the horizontal deplacement
y	the vertical deplacement

Moves the Leaf.

Reimplemented from gccv::Item.

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

Parameters

x	the new leaf origin horizontal position.
y	the new leaf origin vertical position.

Sets the position of the leaf origin.

gccv::Leaf::SetRadius ( double radius )

inline

Parameters

radius the new leaf radius.

Sets the radius for the leaf. The radius is defined as the distance between the origin and the opposite point.

Definition at line 137 of file leaf.h.

gccv::Leaf::SetRotation ( double rotation )

inline

Parameters

rotation the new orientation in radians.

Sets the orientation relative to the up vertical direction, using the trigonometric convention.

Definition at line 147 of file leaf.h.

void gccv::Leaf::SetWidthFactor ( double factor )

Parameters

factor the new width factor.

Sets the width of the leaf relative to its radius. Actually, the width is 0.8 * factor * radius.

void gccv::Leaf::UpdateBounds ( )

protectedvirtual

Evaluates the Leaf bounds.

Reimplemented from gccv::Item.

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

leaf.h

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation