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Diffstat (limited to 'tqtinterface/qt4/src/kernel/tqpoint.cpp')
| -rw-r--r-- | tqtinterface/qt4/src/kernel/tqpoint.cpp | 448 |
1 files changed, 0 insertions, 448 deletions
diff --git a/tqtinterface/qt4/src/kernel/tqpoint.cpp b/tqtinterface/qt4/src/kernel/tqpoint.cpp deleted file mode 100644 index cf8422e..0000000 --- a/tqtinterface/qt4/src/kernel/tqpoint.cpp +++ /dev/null @@ -1,448 +0,0 @@ -/**************************************************************************** -** -** Implementation of TQPoint class -** -** Created : 931028 -** -** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA. -** -** This file is part of the kernel module of the TQt GUI Toolkit. -** -** This file may be used under the terms of the GNU General -** Public License versions 2.0 or 3.0 as published by the Free -** Software Foundation and appearing in the files LICENSE.GPL2 -** and LICENSE.GPL3 included in the packaging of this file. -** Alternatively you may (at your option) use any later version -** of the GNU General Public License if such license has been -** publicly approved by Trolltech ASA (or its successors, if any) -** and the KDE Free TQt Foundation. -** -** Please review the following information to ensure GNU General -** Public Licensing requirements will be met: -** http://trolltech.com/products/qt/licenses/licensing/opensource/. -** If you are unsure which license is appropriate for your use, please -** review the following information: -** http://trolltech.com/products/qt/licenses/licensing/licensingoverview -** or contact the sales department at sales@trolltech.com. -** -** This file may be used under the terms of the Q Public License as -** defined by Trolltech ASA and appearing in the file LICENSE.TQPL -** included in the packaging of this file. Licensees holding valid TQt -** Commercial licenses may use this file in accordance with the TQt -** Commercial License Agreement provided with the Software. -** -** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, -** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted -** herein. -** -**********************************************************************/ - -#include "tqpoint.h" -#include "tqdatastream.h" - -#ifdef USE_QT4 - -#else // USE_QT4 - -/*! - \class TQPoint tqpoint.h - \brief The TQPoint class defines a point in the plane. - - \ingroup images - \ingroup graphics - \mainclass - - A point is specified by an x coordinate and a y coordinate. - - The coordinate type is \c TQCOORD (a 32-bit integer). The minimum - value of \c TQCOORD is \c TQCOORD_MIN (-2147483648) and the maximum - value is \c TQCOORD_MAX (2147483647). - - The coordinates are accessed by the functions x() and y(); they - can be set by setX() and setY() or by the reference functions rx() - and ry(). - - Given a point \e p, the following statements are all equivalent: - \code - p.setX( p.x() + 1 ); - p += TQPoint( 1, 0 ); - p.rx()++; - \endcode - - A TQPoint can also be used as a vector. Addition and subtraction - of TQPoints are defined as for vectors (each component is added - separately). You can divide or multiply a TQPoint by an \c int or a - \c double. The function manhattanLength() gives an inexpensive - approximation of the length of the TQPoint interpreted as a vector. - - Example: - \code - //TQPoint oldPos is defined somewhere else - MyWidget::mouseMoveEvent( TQMouseEvent *e ) - { - TQPoint vector = e->pos() - oldPos; - if ( vector.manhattanLength() > 3 ) - ... //mouse has moved more than 3 pixels since oldPos - } - \endcode - - TQPoints can be compared for equality or inequality, and they can - be written to and read from a TQStream. - - \sa TQPointArray TQSize, TQRect -*/ - - -/***************************************************************************** - TQPoint member functions - *****************************************************************************/ - -/*! - \fn TQPoint::TQPoint() - - Constructs a point with coordinates (0, 0) (isNull() returns TRUE). -*/ - -/*! - \fn TQPoint::TQPoint( int xpos, int ypos ) - - Constructs a point with x value \a xpos and y value \a ypos. -*/ - -/*! - \fn bool TQPoint::isNull() const - - Returns TRUE if both the x value and the y value are 0; otherwise - returns FALSE. -*/ - -/*! - \fn int TQPoint::x() const - - Returns the x coordinate of the point. - - \sa setX() y() -*/ - -/*! - \fn int TQPoint::y() const - - Returns the y coordinate of the point. - - \sa setY() x() -*/ - -/*! - \fn void TQPoint::setX( int x ) - - Sets the x coordinate of the point to \a x. - - \sa x() setY() -*/ - -/*! - \fn void TQPoint::setY( int y ) - - Sets the y coordinate of the point to \a y. - - \sa y() setX() -*/ - - -/*! - \fn TQCOORD &TQPoint::rx() - - Returns a reference to the x coordinate of the point. - - Using a reference makes it possible to directly manipulate x. - - Example: - \code - TQPoint p( 1, 2 ); - p.rx()--; // p becomes (0, 2) - \endcode - - \sa ry() -*/ - -/*! - \fn TQCOORD &TQPoint::ry() - - Returns a reference to the y coordinate of the point. - - Using a reference makes it possible to directly manipulate y. - - Example: - \code - TQPoint p( 1, 2 ); - p.ry()++; // p becomes (1, 3) - \endcode - - \sa rx() -*/ - - -/*! - \fn TQPoint &TQPoint::operator+=( const TQPoint &p ) - - Adds point \a p to this point and returns a reference to this - point. - - Example: - \code - TQPoint p( 3, 7 ); - TQPoint q( -1, 4 ); - p += q; // p becomes (2,11) - \endcode -*/ - -/*! - \fn TQPoint &TQPoint::operator-=( const TQPoint &p ) - - Subtracts point \a p from this point and returns a reference to - this point. - - Example: - \code - TQPoint p( 3, 7 ); - TQPoint q( -1, 4 ); - p -= q; // p becomes (4,3) - \endcode -*/ - -/*! - \fn TQPoint &TQPoint::operator*=( int c ) - - Multiplies this point's x and y by \a c, and returns a reference - to this point. - - Example: - \code - TQPoint p( -1, 4 ); - p *= 2; // p becomes (-2,8) - \endcode -*/ - -/*! - \overload TQPoint &TQPoint::operator*=( double c ) - - Multiplies this point's x and y by \a c, and returns a reference - to this point. - - Example: - \code - TQPoint p( -1, 4 ); - p *= 2.5; // p becomes (-3,10) - \endcode - - Note that the result is truncated because points are held as - integers. -*/ - - -/*! - \fn bool operator==( const TQPoint &p1, const TQPoint &p2 ) - - \relates TQPoint - - Returns TRUE if \a p1 and \a p2 are equal; otherwise returns FALSE. -*/ - -/*! - \fn bool operator!=( const TQPoint &p1, const TQPoint &p2 ) - - \relates TQPoint - - Returns TRUE if \a p1 and \a p2 are not equal; otherwise returns FALSE. -*/ - -/*! - \fn const TQPoint operator+( const TQPoint &p1, const TQPoint &p2 ) - - \relates TQPoint - - Returns the sum of \a p1 and \a p2; each component is added separately. -*/ - -/*! - \fn const TQPoint operator-( const TQPoint &p1, const TQPoint &p2 ) - - \relates TQPoint - - Returns \a p2 subtracted from \a p1; each component is subtracted - separately. -*/ - -/*! - \fn const TQPoint operator*( const TQPoint &p, int c ) - - \relates TQPoint - - Returns the TQPoint formed by multiplying both components of \a p - by \a c. -*/ - -/*! - \overload const TQPoint operator*( int c, const TQPoint &p ) - - \relates TQPoint - - Returns the TQPoint formed by multiplying both components of \a p - by \a c. -*/ - -/*! - \overload const TQPoint operator*( const TQPoint &p, double c ) - - \relates TQPoint - - Returns the TQPoint formed by multiplying both components of \a p - by \a c. - - Note that the result is truncated because points are held as - integers. -*/ - -/*! - \overload const TQPoint operator*( double c, const TQPoint &p ) - - \relates TQPoint - - Returns the TQPoint formed by multiplying both components of \a p - by \a c. - - Note that the result is truncated because points are held as - integers. -*/ - -/*! - \overload const TQPoint operator-( const TQPoint &p ) - - \relates TQPoint - - Returns the TQPoint formed by changing the sign of both components - of \a p, equivalent to \c{TQPoint(0,0) - p}. -*/ - -/*! - \fn TQPoint &TQPoint::operator/=( int c ) - - Divides both x and y by \a c, and returns a reference to this - point. - - Example: - \code - TQPoint p( -2, 8 ); - p /= 2; // p becomes (-1,4) - \endcode -*/ - -/*! - \overload TQPoint &TQPoint::operator/=( double c ) - - Divides both x and y by \a c, and returns a reference to this - point. - - Example: - \code - TQPoint p( -3, 10 ); - p /= 2.5; // p becomes (-1,4) - \endcode - - Note that the result is truncated because points are held as - integers. -*/ - -/*! - \fn const TQPoint operator/( const TQPoint &p, int c ) - - \relates TQPoint - - Returns the TQPoint formed by dividing both components of \a p by - \a c. -*/ - -/*! - \overload const TQPoint operator/( const TQPoint &p, double c ) - - \relates TQPoint - - Returns the TQPoint formed by dividing both components of \a p - by \a c. - - Note that the result is truncated because points are held as - integers. -*/ - - -void TQPoint::warningDivByZero() -{ -#if defined(TQT_CHECK_MATH) - qWarning( "TQPoint: Division by zero error" ); -#endif -} - - -/***************************************************************************** - TQPoint stream functions - *****************************************************************************/ -#ifndef TQT_NO_DATASTREAM -/*! - \relates TQPoint - - Writes point \a p to the stream \a s and returns a reference to - the stream. - - \sa \link datastreamformat.html Format of the TQDataStream operators \endlink -*/ - -TQDataStream &operator<<( TQDataStream &s, const TQPoint &p ) -{ - if ( s.version() == 1 ) - s << (TQ_INT16)p.x() << (TQ_INT16)p.y(); - else - s << (TQ_INT32)p.x() << (TQ_INT32)p.y(); - return s; -} - -/*! - \relates TQPoint - - Reads a TQPoint from the stream \a s into point \a p and returns a - reference to the stream. - - \sa \link datastreamformat.html Format of the TQDataStream operators \endlink -*/ - -TQDataStream &operator>>( TQDataStream &s, TQPoint &p ) -{ - if ( s.version() == 1 ) { - TQ_INT16 x, y; - s >> x; p.rx() = x; - s >> y; p.ry() = y; - } - else { - TQ_INT32 x, y; - s >> x; p.rx() = x; - s >> y; p.ry() = y; - } - return s; -} -#endif // TQT_NO_DATASTREAM -/*! - Returns the sum of the absolute values of x() and y(), - traditionally known as the "Manhattan length" of the vector from - the origin to the point. The tradition arises because such - distances apply to travelers who can only travel on a rectangular - grid, like the streets of Manhattan. - - This is a useful, and quick to calculate, approximation to the - true length: sqrt(pow(x(),2)+pow(y(),2)). -*/ -int TQPoint::manhattanLength() const -{ - return TQABS(x())+TQABS(y()); -} - -#endif // USE_QT4
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