vym: misc.cpp@bfacef6f29c1

     1 #include <math.h>

     3 #include <qregexp.h>

     4 #include <stdlib.h>

     6 #include "misc.h"

     8 #include "geometry.h"

    10 QString qpointToString (const QPoint &p)

    11 { return "(" + QString("%1").arg(p.x()) +","+ QString ("%1").arg (p.y()) +")"; }

    13 QString qpointFToString (const QPointF &p)

    14 { return "(" + QString("%1").arg(p.x()) +","+ QString ("%1").arg (p.y()) +")"; }

    16 QString VectorToString (const Vector &p)

    17 { return "(" + QString("%1").arg(p.x()) +","+ QString ("%1").arg (p.y()) +")"; }

    19 ostream &operator<< (ostream &stream, QPoint const &p)

    20 {

    21 	stream << "("<<p.x()<<","<<p.y()<<")";

    22 	return stream;

    23 }

    25 ostream &operator<< (ostream &stream, QPointF const &p)

    26 {

    27 	stream << "("<<p.x()<<","<<p.y()<<")";

    28 	return stream;

    29 }

    31 ostream &operator<< (ostream &stream, QRectF const &r)

    32 {

    33 	stream << "tL="<<r.topLeft()<<" - (w,h)="<<r.width()<<","<<r.height()<<"  bR="<<r.bottomRight();

    34 	return stream;

    35 }

    37 ostream &operator<< (ostream &stream, Vector const &p)

    38 {

    39 	stream << "("<<p.x()<<","<<p.y()<<")";

    40 	return stream;

    41 }

    43 qreal getAngle(const QPointF &p)

    44 {

    45 	// Calculate angle of vector to y-axis

    46 	if (p.y()==0)

    47 	{

    48 		if (p.x()>=0)

    49 			return M_PI_2;

    50 		else

    51 			return 3* M_PI_2;

    52 	} else

    53 	{

    54 		if (p.y()>0)

    55 			return (qreal)(M_PI  - atan ( (qreal)(p.x()) / (qreal)(p.y()) ) );

    56 		else

    57 			if (p.x()<0)

    58 				return (qreal)( 2*M_PI - atan ( (qreal)(p.x()) / (qreal)(p.y()) ) );

    59 			else

    60 				return (qreal)( - atan ( (qreal)(p.x()) / (qreal)(p.y()) ) );

    61 	}

    62 }

    64 qreal max(qreal a, qreal b)

    65 {

    66 	if (a>b)

    67 		return a;

    68 	return b;

    69 }

author	insilmaril
	Tue, 09 Mar 2010 13:09:05 +0000
changeset 833	bfacef6f29c1
parent 819	8f987e376035
permissions	-rw-r--r--