PieDock::PieMenu Class Reference

#include <PieMenu.h>

Inheritance diagram for PieDock::PieMenu:

Collaboration diagram for PieDock::PieMenu:

List of all members.

Public Member Functions
	PieMenu (Application *, Surface &)
const bool	cursorInCenter () const
const int &	getRadius () const
Blender *	getBlender ()
virtual bool	update (std::string="")
virtual bool	isObsolete (int, int)
virtual void	draw (int, int)
virtual void	turn (double)
virtual void	turn (int)
virtual void	setTwistForSelection ()
Protected Member Functions
virtual double	getAngleDifference (double a, double b)
virtual double	getValidAngle (double a)
Protected Attributes
Blender	blender
int	size
int	maxRadius
int	radius
double	twist
int	centerX
int	centerY
int	lastX
int	lastY
double *	turnStack
double *	turnBy
Static Protected Attributes
static const double	radiansPerCircle = M_PI+M_PI
static const double	turnSteps []

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Detailed Description

Realize a pie menu

Author:

Markus Fisch <mf@markusfisch.de>

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Constructor & Destructor Documentation

PieMenu::PieMenu	(	Application *	a,
		Surface &	s
	)

Initialize menu

Parameters:

a	- application
s	- surface to draw menu into

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Member Function Documentation

void PieMenu::draw	(	int	x,
		int	y
	)		[virtual]

Draw menu

Parameters:

x	- x coordinate of cursor position within target surface
y	- y coordinate of cursor position within target surface

Reimplemented from PieDock::Menu.

References PieDock::Blender::blend(), getAngleDifference(), and getValidAngle().

Referenced by PieDock::PieMenuWindow::draw().

virtual double PieDock::PieMenu::getAngleDifference	(	double	a,
		double	b
	)		[inline, protected, virtual]

Return the difference of two angles in radians; implemented here to ensure the method will be compiled inline

Parameters:

a	- angle in radians
b	- angle in radians

Referenced by draw().

virtual double PieDock::PieMenu::getValidAngle

(

double

a

)

[inline, protected, virtual]

Recalculate angle to be within a valid range; implemented here to ensure the method will be compiled inline

Parameters:

a	- angle in radians

Referenced by draw().

bool PieMenu::isObsolete	(	int	x,
		int	y
	)		[virtual]

Returns true if menu needs to be redrawn

Parameters:

x	- x coordinate of cursor position within target surface
y	- y coordinate of cursor position within target surface

Referenced by PieDock::PieMenuWindow::draw().

void PieMenu::setTwistForSelection

(

)

[virtual]

Set twist to have the last selected item selected again

Referenced by PieDock::PieMenuWindow::appear().

void PieMenu::turn

(

int

c

)

[virtual]

Turn menu by the given number of cells

Parameters:

c	- cells to turn

void PieMenu::turn

(

double

r

)

[virtual]

Turn menu

Parameters:

r	- radians to turn

Referenced by PieDock::PieMenuWindow::performAction().

bool PieMenu::update

(

std::string

n = ""

)

[virtual]

Reset and update menu

Parameters:

n	- menu name (optional)

Reimplemented from PieDock::Menu.

Referenced by PieDock::PieMenuWindow::appear().

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Member Data Documentation

const double PieMenu::turnSteps [static, protected]

Initial value:

 {
    .1,
    .3,
    .4,
    .5,
    .7,
    .9,
    .7,
    .5,
    .3,
    .1,
    .0 }

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

• src/PieMenu.h
• src/PieMenu.cpp