You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
126 lines
3.8 KiB
126 lines
3.8 KiB
// Copyright (C) 2003 Dominique Devriese <devriese@kde.org>
|
|
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License
|
|
// as published by the Free Software Foundation; either version 2
|
|
// of the License, or (at your option) any later version.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
// 02110-1301, USA.
|
|
|
|
#ifndef KIG_OBJECTS_CIRCLE_IMP_H
|
|
#define KIG_OBJECTS_CIRCLE_IMP_H
|
|
|
|
#include "conic_imp.h"
|
|
|
|
/**
|
|
* An ObjectImp representing a circle. This class is a subclass of
|
|
* ConicImp, ensuring that a circle can be used as a conic.
|
|
*/
|
|
class CircleImp
|
|
: public ConicImp
|
|
{
|
|
Coordinate mcenter;
|
|
double mradius;
|
|
public:
|
|
typedef ConicImp Parent;
|
|
/**
|
|
* Returns the ObjectImpType representing the CircleImp type..
|
|
*/
|
|
static const ObjectImpType* stype();
|
|
|
|
/**
|
|
* Construct a Circle with a given center and radius.
|
|
*/
|
|
CircleImp( const Coordinate& center, double radius );
|
|
~CircleImp();
|
|
CircleImp* copy() const;
|
|
|
|
ObjectImp* transform( const Transformation& ) const;
|
|
|
|
void draw( KigPainter& p ) const;
|
|
bool tqcontains( const Coordinate& p, int width, const KigWidget& ) const;
|
|
bool inRect( const Rect& r, int width, const KigWidget& ) const;
|
|
bool valid() const;
|
|
Rect surroundingRect() const;
|
|
|
|
double getParam( const Coordinate& point, const KigDocument& ) const;
|
|
const Coordinate getPoint( double param, const KigDocument& ) const;
|
|
|
|
const uint numberOfProperties() const;
|
|
const QCStringList properties() const;
|
|
const QCStringList propertiesInternalNames() const;
|
|
ObjectImp* property( uint which, const KigDocument& w ) const;
|
|
const char* iconForProperty( uint which ) const;
|
|
const ObjectImpType* impRequirementForProperty( uint which ) const;
|
|
bool isPropertyDefinedOnOrThroughThisImp( uint which ) const;
|
|
|
|
const ObjectImpType* type() const;
|
|
void visit( ObjectImpVisitor* vtor ) const;
|
|
|
|
/**
|
|
* Return the center of this circle.
|
|
*/
|
|
const Coordinate center() const;
|
|
/**
|
|
* Return the radius of this circle.
|
|
*/
|
|
double radius() const;
|
|
/**
|
|
* Return the square radius of this circle. Use this in preference
|
|
* to sqr( radius() ).
|
|
*/
|
|
double squareRadius() const;
|
|
/**
|
|
* Return the surface of this circle.
|
|
*/
|
|
double surface() const;
|
|
/**
|
|
* Return the circumference of this circle.
|
|
*/
|
|
double circumference() const;
|
|
|
|
// trivial versions of the conic information functions..
|
|
/**
|
|
* Always returns 1, since a circle always is an ellipse.
|
|
*/
|
|
int conicType() const;
|
|
const ConicCartesianData cartesianData() const;
|
|
const ConicPolarData polarData() const;
|
|
/**
|
|
* The first focus of a circle is simply its center.
|
|
*/
|
|
Coordinate focus1() const;
|
|
/**
|
|
* The second focus of a circle is simply its center.
|
|
*/
|
|
Coordinate focus2() const;
|
|
|
|
/**
|
|
* Return a string containing the cartesian equation of this circle.
|
|
* This will be of the form "x^2 + y^2 + a x + b y + c = 0"
|
|
*/
|
|
TQString cartesianEquationString( const KigDocument& w ) const;
|
|
/**
|
|
* Return a string containing the cartesian equation of this circle.
|
|
* This will be of the form "( x - x0 )^2 + ( y - y0 )^2 = r^2"
|
|
*/
|
|
TQString simplyCartesianEquationString( const KigDocument& w ) const;
|
|
/**
|
|
* Return a string containing the polar equation of this circle.
|
|
* This will be of the form "rho = r [centered at p]"
|
|
*/
|
|
TQString polarEquationString( const KigDocument& w ) const;
|
|
|
|
bool equals( const ObjectImp& rhs ) const;
|
|
};
|
|
|
|
#endif
|