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#include <math.h>
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insilmaril@2
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#include <qregexp.h>
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#include <qpoint.h>
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#include <stdlib.h>
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#include "misc.h"
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QString qpointToString (const QPoint &p)
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{
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return "(" + QString("%1").arg(p.x()) +","+ QString ("%1").arg (p.y()) +")";
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}
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ostream &operator<< (ostream &stream, QPoint const &p)
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{
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stream << "("<<p.x()<<","<<p.y()<<")";
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return stream;
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}
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float getAngle(const QPoint &p)
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{
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// Calculate angle of vector to y-axis
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if (p.y()==0)
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{
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if (p.x()>=0)
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return M_PI_2;
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else
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return 3* M_PI_2;
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} else
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{
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if (p.y()>0)
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return (float)(M_PI - atan ( (double)(p.x()) / (double)(p.y()) ) );
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else
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if (p.x()<0)
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return (float)( 2*M_PI - atan ( (double)(p.x()) / (double)(p.y()) ) );
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else
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return (float)( - atan ( (double)(p.x()) / (double)(p.y()) ) );
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}
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}
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QPoint normalise(const QPoint &p)
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{
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// Calculate normalised position (fixed length)
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double px=p.x();
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double py=p.y();
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double x;
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double y;
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double r=150;
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if (px==0)
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{
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x=0;
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if (py>=0)
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y=r;
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else
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y=-r;
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} else
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{
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double sign;
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double a;
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if (px>0)
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sign=1;
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else
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sign=-1;
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a=atan (py / px);
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x=cos (a) * r *sign;
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y=sin (a) * r *sign;
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}
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return QPoint ((int) (x),(int) (y));
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}
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// returns masked "<" ">" "&"
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QString quotemeta(const QString &s)
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{
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QString r=s;
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QRegExp rx("&(?!amp;)");
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r.replace ( rx,"&");
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rx.setPattern( ">");
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r.replace ( rx,">");
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rx.setPattern( "<");
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r.replace ( rx,"<");
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rx.setPattern( "\"");
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r.replace ( rx,""");
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return r;
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}
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int max(int a, int b)
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{
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if (a>b)
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return a;
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return b;
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}
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int xmlObj::actindent=0; // make instance of actindent
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xmlObj::xmlObj()
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{
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indentwidth=4;
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}
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// returns <s at />
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QString xmlObj::singleElement(QString s, QString at)
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{
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return indent() + "<" + s +" " + at +" " + "/>\n";
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}
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// returns <s>
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QString xmlObj::beginElement(QString s)
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{
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return indent() + "<" + s + ">\n";
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}
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// returns <s at>
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QString xmlObj::beginElement(QString s, QString at)
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{
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return indent() + "<" + s + " " + at + ">\n";
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}
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// returns </s>
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QString xmlObj::endElement(QString s)
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{
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return indent() + "</" + s + ">\n";
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}
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// returns at="val"
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QString xmlObj::attribut(QString at, QString val)
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{
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return " " + at + "=\"" + quotemeta (val) + "\"";
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}
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// returns <s> val </s>
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QString xmlObj::valueElement(QString el, QString val)
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{
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return indent() + "<" + el + ">" + quotemeta(val) + "</" +el + ">\n";
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}
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// returns <s at> val </s>
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QString xmlObj::valueElement(QString el, QString val, QString at)
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{
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return indent() + "<" + el + " " + at + ">" + quotemeta(val) + "</" +el + ">\n";
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}
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void xmlObj::incIndent()
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{
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actindent++;
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}
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void xmlObj::decIndent()
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{
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actindent--;
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if (actindent<0) actindent=0;
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}
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QString xmlObj::indent()
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{
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QString s;
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int i;
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for (i=0; i<actindent*indentwidth; i++)
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{
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s= s + " ";
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}
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return s;
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}
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