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author | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-01-20 01:29:50 +0000 |
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committer | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-01-20 01:29:50 +0000 |
commit | 8362bf63dea22bbf6736609b0f49c152f975eb63 (patch) | |
tree | 0eea3928e39e50fae91d4e68b21b1e6cbae25604 /lib/kofficecore/KoPoint.h | |
download | koffice-8362bf63dea22bbf6736609b0f49c152f975eb63.tar.gz koffice-8362bf63dea22bbf6736609b0f49c152f975eb63.zip |
Added old abandoned KDE3 version of koffice
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/koffice@1077364 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'lib/kofficecore/KoPoint.h')
-rw-r--r-- | lib/kofficecore/KoPoint.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/lib/kofficecore/KoPoint.h b/lib/kofficecore/KoPoint.h new file mode 100644 index 000000000..5f39e6c69 --- /dev/null +++ b/lib/kofficecore/KoPoint.h @@ -0,0 +1,128 @@ +/* This file is part of the KDE project + Copyright (C) 2001 David Faure <faure@kde.org> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. +*/ + +#ifndef koPoint_h +#define koPoint_h + +#include <qwmatrix.h> +#include <math.h> + +/** + * A point whose coordinates are floating-point values ( "double"s ). + * The API isn't documented, it's a perfect mirror of QPoint. + */ +class KoPoint { + +public: + KoPoint() { m_x = 0; m_y = 0; } + KoPoint(const double &x, const double &y) : m_x(x), m_y(y) {} + explicit KoPoint(const QPoint & p) : m_x(p.x()), m_y(p.y()) {} + ~KoPoint() {} + + bool operator==(const KoPoint &rhs) const { return QABS(m_x-rhs.x()) < 1E-10 && QABS(m_y-rhs.y()) < 1E-10; } + bool operator!=(const KoPoint &rhs) const { return QABS(m_x-rhs.x()) > 1E-10 || QABS(m_y-rhs.y()) > 1E-10; } + + bool isNull() const { return m_x == 0 && m_y == 0; } + + double x() const { return m_x; } + double y() const { return m_y; } + void setX(const double &x) { m_x = x; } + void setY(const double &y) { m_y = y; } + + double &rx() { return m_x; } + double &ry() { return m_y; } + + KoPoint &operator=(const KoPoint &rhs) { m_x = rhs.x(); m_y = rhs.y(); return *this; } + KoPoint &operator+=( const KoPoint &rhs ) { m_x += rhs.x(); m_y += rhs.y(); return *this; } + KoPoint &operator-=( const KoPoint &rhs ) { m_x -= rhs.x(); m_y -= rhs.y(); return *this; } + KoPoint &operator*=( const double &c ) { m_x *= c; m_y *= c; return *this; } + + friend inline KoPoint operator+( const KoPoint &, const KoPoint & ); + friend inline KoPoint operator-( const KoPoint &, const KoPoint & ); + friend inline KoPoint operator*( const KoPoint &, const double & ); + friend inline KoPoint operator*( const double &, const KoPoint & ); + friend inline double operator*( const KoPoint &a, const KoPoint &b ); + + // Not in QPoint: + void setCoords(const double &x, const double &y) { m_x = x; m_y = y; } + KoPoint transform (const QWMatrix &m) const + { + double x, y; + m.map(m_x, m_y, &x, &y); + return KoPoint(x, y); + }; + + bool isNear(const KoPoint &p, double range) const + { + return (p.x() >= m_x - range && p.x() <= m_x + range && p.y() >= m_y - range && p.y() <= m_y + range); + } + + static double getAngle( const KoPoint& p1, const KoPoint& p2 ) { + double a = atan2( p2.x() - p1.x(), p2.y() - p1.y() ) + M_PI; + return ( ( - ( a * 360 ) / ( 2 * M_PI ) - 90 ) - 180 ); + } + + double manhattanLength() const + { + return QABS( m_x ) + QABS( m_y ); + } + + /// Convert to a QPoint - with precision loss! + QPoint toQPoint() const + { + return QPoint( qRound( m_x ), qRound( m_y ) ); + } + +private: + double m_x, m_y; +}; + +inline KoPoint operator+( const KoPoint &p1, const KoPoint &p2 ) +{ return KoPoint( p1.m_x+p2.m_x, p1.m_y+p2.m_y ); } + +inline KoPoint operator-( const KoPoint &p1, const KoPoint &p2 ) +{ return KoPoint( p1.m_x-p2.m_x, p1.m_y-p2.m_y ); } + +inline KoPoint operator*( const KoPoint &p, const double &c ) +{ return KoPoint( p.m_x*c, p.m_y*c ); } + +inline KoPoint operator*( const double &c, const KoPoint &p ) +{ return KoPoint( p.m_x*c, p.m_y*c ); } + +inline double operator*( const KoPoint &a, const KoPoint &b ) +{ return a.m_x * b.m_x + a.m_y * b.m_y; } + +/****************************** + kdDebug support +*******************************/ + +#include <kdebug.h> + +/** Show a floating point value with great precision (use within kdDebug) */ +#define DEBUGDOUBLE(d) QString::number( (d), 'g', 20 ) + +inline kdbgstream operator<<( kdbgstream str, const KoPoint & r ) { + // should this use DEBUGDOUBLE? + str << "(" << r.x() << ", " << r.y() << ")"; + return str; +} + +inline kndbgstream operator<<( kndbgstream str, const KoPoint & ) { return str; } + +#endif |