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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commitce599e4f9f94b4eb00c1b5edb85bce5431ab3df2 (patch)
treed3bb9f5d25a2dc09ca81adecf39621d871534297 /kig/misc/coordinate.cpp
downloadtdeedu-ce599e4f9f94b4eb00c1b5edb85bce5431ab3df2.tar.gz
tdeedu-ce599e4f9f94b4eb00c1b5edb85bce5431ab3df2.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeedu@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kig/misc/coordinate.cpp')
-rw-r--r--kig/misc/coordinate.cpp184
1 files changed, 184 insertions, 0 deletions
diff --git a/kig/misc/coordinate.cpp b/kig/misc/coordinate.cpp
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+// 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.
+
+#include "coordinate.h"
+
+#include <qglobal.h>
+#include <cmath>
+#include <kdebug.h>
+
+#include "common.h"
+
+using namespace std;
+
+Coordinate Coordinate::fromQPoint( const QPoint& p )
+{
+ return Coordinate( p.x(), p.y() );
+}
+
+kdbgstream& operator<<( kdbgstream& s, const Coordinate& t )
+{
+ s << "x: " << t.x << " y: " << t.y << endl;
+ return s;
+}
+
+const Coordinate operator+ ( const Coordinate& a, const Coordinate& b )
+{
+ return Coordinate ( a.x + b.x, a.y + b.y );
+}
+
+const Coordinate operator- ( const Coordinate& a, const Coordinate& b )
+{
+ return Coordinate ( a.x - b.x, a.y - b.y );
+}
+
+const Coordinate operator* ( const Coordinate& a, double r )
+{
+ return Coordinate ( r*a.x, r*a.y );
+}
+
+const Coordinate operator* ( double r, const Coordinate& a )
+{
+ return Coordinate ( r*a.x, r*a.y );
+}
+
+const Coordinate operator/ ( const Coordinate& a, double r )
+{
+ return Coordinate ( a.x/r, a.y/r );
+}
+
+bool operator==( const Coordinate& a, const Coordinate& b )
+{
+ return a.x == b.x && a.y == b.y;
+}
+
+bool operator!=( const Coordinate& a, const Coordinate& b )
+{
+ return !operator==( a, b );
+}
+
+Coordinate::Coordinate()
+ : x(0),
+ y(0)
+{
+}
+
+Coordinate::Coordinate( double nx, double ny )
+ : x( nx ),
+ y( ny )
+{
+}
+
+Coordinate::Coordinate( const Coordinate& p )
+ : x( p.x ),
+ y( p.y )
+{
+}
+
+const Coordinate Coordinate::operator-() const
+{
+ return Coordinate ( -x, -y );
+}
+
+Coordinate& Coordinate::operator=( const Coordinate& p )
+{
+ x = p.x;
+ y = p.y;
+ return *this;
+}
+
+Coordinate& Coordinate::operator+=( const Coordinate& p )
+{
+ x += p.x;
+ y += p.y;
+ return *this;
+}
+
+Coordinate& Coordinate::operator-=( const Coordinate& p )
+{
+ x -= p.x;
+ y -= p.y;
+ return *this;
+}
+
+Coordinate& Coordinate::operator*=( double r )
+{
+ x *= r;
+ y *= r;
+ return *this;
+}
+
+Coordinate& Coordinate::operator*=( int r )
+{
+ x *= r;
+ y *= r;
+ return *this;
+}
+
+Coordinate& Coordinate::operator/=( double r )
+{
+ x /= r;
+ y /= r;
+ return *this;
+}
+
+double Coordinate::distance( const Coordinate& p ) const
+{
+ return (p - *this).length();
+}
+
+double Coordinate::length() const
+{
+ return sqrt(x*x+y*y);
+}
+
+const Coordinate Coordinate::orthogonal() const
+{
+ return Coordinate( -y, x );
+}
+
+const Coordinate Coordinate::normalize( double l ) const
+{
+ double oldlength = length();
+ return ( *this * l ) / oldlength;
+}
+
+const Coordinate Coordinate::round() const
+{
+ return Coordinate( qRound( x ), qRound( y ) );
+}
+
+QPoint Coordinate::toQPoint() const
+{
+ Coordinate t = round();
+ return QPoint( (int) t.x, (int) t.y );
+}
+
+Coordinate Coordinate::invalidCoord()
+{
+ return Coordinate( double_inf, double_inf );
+}
+
+bool Coordinate::valid() const
+{
+ return abs( x ) != double_inf && abs( y ) != double_inf;
+}
+
+double operator*( const Coordinate& a, const Coordinate& b )
+{
+ return a.x * b.x + a.y * b.y;
+}