Papyrus::Arc Class Reference

An arc is drawn centered on the (x,y) coordinate with a specified radius and start/stop angles. More...

#include <arc.h>

Inheritance diagram for Papyrus::Arc:

[legend]

List of all members.

Public Member Functions
	PAPYRUS_DRAWABLE (Arc)
virtual	~Arc ()
	Destructor.
double	radius () const
	Returns the radius of this arc.
void	set_radius (double r)
	Sets the radius to r.
double	start_angle () const
	Sets the start angle of the arc.
double	end_angle () const
	Sets the end angle of the arc.
void	set_angles (double start, double end)
	Set both start and stop angles in a single method.
virtual void	draw_shape (Context &cairo) const
	Draws on the provided context.
sigc::signal< void >	signal_radius ()
	Signal emitted when the radius is changed.
sigc::signal< void >	signal_angle ()
	Signal emitted when the start or end angle is changed.
Static Public Member Functions
static pointer	create (double radius=1.0, double angle_start=0.0, double angle_end=M_PI/2.0, Fill::pointer fill=Fill::pointer(), Stroke::pointer stroke=Stroke::pointer())
	Creates an arc with the specified start angle, stop angle and radius.
static pointer	create (const Glib::ustring &id, double radius=1.0, double angle_start=0.0, double angle_end=M_PI/2.0, Fill::pointer fill=Fill::pointer(), Stroke::pointer stroke=Stroke::pointer())
	Creates an arc with the specified start angle, stop angle and radius.
Protected Member Functions
	Arc (const Glib::ustring &id, double radius, double angle_start, double angle_end, Fill::pointer fill=Fill::pointer(), Stroke::pointer stroke=Stroke::pointer())
Protected Attributes
double	m_radius
	The radius of the arc.
double	m_angle_start
double	m_angle_end
sigc::signal< void >	m_signal_radius
	Signal emitted when the radius is changed.
sigc::signal< void >	m_signal_angle
	Signal emitted when the start or end angle is changed.

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Detailed Description

An arc is drawn centered on the (x,y) coordinate with a specified radius and start/stop angles.

Arc

Author:

Rick L Vinyard Jr

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Constructor & Destructor Documentation

Papyrus::Arc::Arc	(	const Glib::ustring &	id,
		double	radius,
		double	angle_start,
		double	angle_end,
		Fill::pointer	fill = Fill::pointer(),
		Stroke::pointer	stroke = Stroke::pointer()
	)			[protected]

References m_angle_end, and m_angle_start.

Papyrus::Arc::~Arc

(

)

[virtual]

Destructor.

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Member Function Documentation

Arc::pointer Papyrus::Arc::create	(	const Glib::ustring &	id,
		double	radius = 1.0,
		double	angle_start = 0.0,
		double	angle_end = M_PI / 2.0,
		Fill::pointer	fill = Fill::pointer(),
		Stroke::pointer	stroke = Stroke::pointer()
	)			[static]

Creates an arc with the specified start angle, stop angle and radius.

References PAPYRUS_CREATE.

Arc::pointer Papyrus::Arc::create	(	double	radius = 1.0,
		double	angle_start = 0.0,
		double	angle_end = M_PI / 2.0,
		Fill::pointer	fill = Fill::pointer(),
		Stroke::pointer	stroke = Stroke::pointer()
	)			[static]

Creates an arc with the specified start angle, stop angle and radius.

References PAPYRUS_CREATE.

void Papyrus::Arc::draw_shape

(

Context &

cairo

)

const [virtual]

Draws on the provided context.

Implements Papyrus::Shape.

References m_angle_end, m_angle_start, and m_radius.

double Papyrus::Arc::end_angle

(

)

const

Sets the end angle of the arc.

References m_angle_end.

Papyrus::Arc::PAPYRUS_DRAWABLE

(

Arc

)

double Papyrus::Arc::radius

(

)

const

Returns the radius of this arc.

References m_radius.

void Papyrus::Arc::set_angles	(	double	start,
		double	end
	)

Set both start and stop angles in a single method.

References m_angle_end, m_angle_start, m_signal_angle, and Papyrus::Shape::shape_changed().

void Papyrus::Arc::set_radius

(

double

r

)

Sets the radius to r.

References m_radius, m_signal_radius, and Papyrus::Shape::shape_changed().

sigc::signal< void > Papyrus::Arc::signal_angle

(

)

Signal emitted when the start or end angle is changed.

References m_signal_angle.

sigc::signal< void > Papyrus::Arc::signal_radius

(

)

Signal emitted when the radius is changed.

References m_signal_radius.

double Papyrus::Arc::start_angle

(

)

const

Sets the start angle of the arc.

References m_angle_start.

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Member Data Documentation

double Papyrus::Arc::m_angle_end [protected]

Referenced by Arc(), draw_shape(), end_angle(), and set_angles().

double Papyrus::Arc::m_angle_start [protected]

Referenced by Arc(), draw_shape(), set_angles(), and start_angle().

double Papyrus::Arc::m_radius [protected]

The radius of the arc.

Referenced by draw_shape(), radius(), and set_radius().

sigc::signal<void> Papyrus::Arc::m_signal_angle [protected]

Signal emitted when the start or end angle is changed.

Referenced by set_angles(), and signal_angle().

sigc::signal<void> Papyrus::Arc::m_signal_radius [protected]

Signal emitted when the radius is changed.

Referenced by set_radius(), and signal_radius().

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

• arc.h
• arc.cpp