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/**
This file is part of Kig, a KDE program for Interactive Geometry...
Copyright (C) 2002 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 RECT_H
#define RECT_H
#include "coordinate.h"
#include <tqrect.h>
#include <kdebug.h>
/**
* like Coordinate is a TQPoint replacement with doubles, this is a
* TQRect replacement with doubles...
*/
class Rect
{
public:
/**
* constructors...
*/
Rect( const Coordinate bottomLeft, const Coordinate topRight );
Rect( const Coordinate bottomLeft, const double width, const double height );
Rect( double xa, double ya, double width, double height );
Rect( const Rect& r );
Rect();
static Rect invalidRect();
bool valid();
void setBottomLeft( const Coordinate p );
void setTopLeft( const Coordinate p );
void setTopRight( const Coordinate p );
void setBottomRight( const Coordinate p );
void setCenter( const Coordinate p );
void setLeft( const double p);
void setRight( const double p);
void setTop( const double p );
void setBottom( const double p );
void setWidth( const double w );
void setHeight( const double h );
/**
* this makes sure width and height are > 0 ...
*/
void normalize();
/**
* this makes sure p is in the rect, extending it if necessary...
*/
void setContains( Coordinate p );
/**
* moves the rect while keeping the size constant...
*/
void moveBy( const Coordinate p );
/**
* synonym for moveBy...
*/
Rect& operator+=( const Coordinate p ) { moveBy(p); return *this; }
/**
* scale: only the size changes, topLeft is kept where it is...
*/
void scale( const double r );
/**
* synonym for scale...
*/
Rect& operator*=( const double r ) { scale(r); return *this; }
Rect& operator/=( const double r ) { scale(1/r); return *this; }
/**
* This expands the rect so that it contains r. It has friends
* '|=' and '|' below...
*/
void eat( const Rect& r );
/**
* synonym for eat..
*/
Rect& operator|=( const Rect& rhs ) { eat( rhs ); return *this; }
/**
* return a rect which is a copy of this rect, but has an aspect
* ratio equal to rhs's one.. if \p shrink is true, the rect will be
* shrunk, otherwise extended.. The center of the new rect is the
* same as this rect's center..
*/
Rect matchShape( const Rect& rhs, bool shrink = false ) const;
TQRect toQRect() const;
Coordinate bottomLeft() const;
Coordinate bottomRight() const;
Coordinate topLeft() const;
Coordinate topRight() const;
Coordinate center() const;
double left() const;
double right() const;
double bottom() const;
double top() const;
double width() const;
double height() const;
bool contains( const Coordinate& p ) const;
bool contains( const Coordinate& p, double allowed_miss ) const;
bool intersects( const Rect& p ) const;
Rect normalized() const;
friend kdbgstream& operator<<( kdbgstream& s, const Rect& t );
static Rect fromQRect( const TQRect& );
protected:
Coordinate mBottomLeft;
double mwidth;
double mheight;
};
bool operator==( const Rect& r, const Rect& s );
kdbgstream& operator<<( kdbgstream& s, const Rect& t );
/**
* this operator returns a Rect that contains both the given
* rects..
*/
Rect operator|( const Rect& lhs, const Rect& rhs );
#endif
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