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JKQtPlotter/lib/jkqtplottertools/jkqtptools.h

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/*
Copyright (c) 2008-2018 Jan W. Krieger (<jan@jkrieger.de>, <j.krieger@dkfz.de>)
This software 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/**
* \defgroup jkqtptools Tool Functions and Definitions
* \ingroup jkqtplotter
*/
/** \file jkqtptools.h
* \ingroup jkqtptools
*/
#ifndef JKQTPTOOLS_H_INCLUDED
#define JKQTPTOOLS_H_INCLUDED
#include "jkqtplottertools/jkqtp_imexport.h"
#include <QString>
#include <QElapsedTimer>
#include <QLocale>
#include <QPainter>
#include <cfloat>
#include <QPrinter>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <string>
#include <iostream>
#include <fstream>
#include <sstream>
#include <cstdarg>
#include <cstdio>
#include <cstdlib>
#include <vector>
#include <ctime>
#include <cmath>
#include <cstdint>
#include <stdexcept>
#include <cctype>
#ifndef __WINDOWS__
# if defined(WIN32) || defined(WIN64) || defined(_MSC_VER) || defined(_WIN32)
# define __WINDOWS__
# endif
#endif
#ifndef __LINUX__
# if defined(linux)
# define __LINUX__
# endif
#endif
#undef JKTOOLS_TIMER_USE_TIME
#if defined(__WINDOWS__)
#include<windows.h>
#elif defined(__LINUX__)
#include <sys/time.h>
#else
#define JKTOOLS_TIMER_USE_TIME
#endif
#ifndef __WINDOWS__
# ifndef __LINUX__
# warning("these methods are ment to be used under windows or linux ... no other system were tested")
# endif
#endif
/* This just distinguishes between the different path formats on Windows and Unix:
* - on Windows you use a backslash '\' do separate directories
* - in Unix you use a slash '/' to separate directories
*/
#ifdef __WINDOWS__
/** \brief a separator between two directories in a path between \c " quotes */
#define JKQTPPATHSEPARATOR_STRING "\\"
/** \brief a separator between two directories in a path between \c ' quotes */
#define JKQTPPATHSEPARATOR_CHAR '\\'
#include<windows.h>
#include <io.h>
#else
/** \brief a separator between two directories in a path between \c " quotes */
#define JKQTPPATHSEPARATOR_STRING "/"
/** \brief a separator between two directories in a path between \c ' quotes */
#define JKQTPPATHSEPARATOR_CHAR '/'
#include <unistd.h>
#include <dirent.h>
#endif
/** \defgroup tools_files filesystem and file I/O
* \ingroup tools
*/
/** \defgroup tools_streams C++ stream tools
* \ingroup tools_files
*/
/*@{*/
class JKQTPEnhancedPainter; // forward
#define JKQTPLOTTER_ABS_MIN_LINEWIDTH 0.02
/** \brief check whether the dlotaing point number is OK (i.e. non-inf, non-NAN)
* \ingroup jkqtptools
*/
template <typename T>
inline T JKQTPIsOKFloat(T v) {
return std::isfinite(v)&&(!std::isinf(v))&&(!std::isnan(v));
}
/** \brief converts a QT::PenStyle into a string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTP_QPenStyle2String(Qt::PenStyle style);
/** \brief converts a QString into a Qt::PenStyle
* \ingroup jkqtptools
*/
LIB_EXPORT Qt::PenStyle JKQTP_String2QPenStyle(QString style);
/** \brief converts a QT::BrushStyle into a string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTP_QBrushStyle2String(Qt::BrushStyle style);
/** \brief converts a QString into a Qt::BrushStyle
* \ingroup jkqtptools
*/
LIB_EXPORT Qt::BrushStyle JKQTP_String2QBrushStyle(QString style);
class JKQtBasePlotter; // forward declaration
/** \brief display mode for an axis
* \ingroup jkqtptools */
enum JKQTPCAdrawMode {
JKQTPCADMcomplete=0, /*!< \brief draw axis with ticks, ticklabels and axis label */
JKQTPCADMticksAndLabels, /*!< \brief draw axis with ticks and tick labels */
JKQTPCADMticks, /*!< \brief draw axis with ticks */
JKQTPCADMline, /*!< \brief draw axis as thick line */
JKQTPCADMnone /*!< \brief draw no axis */
};
/** \brief converts a JKQTPCAdrawMode variable into a human-readable string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTPCAdrawMode2String(JKQTPCAdrawMode pos);
/** \brief converts a string into a JKQTPCAdrawMode
* \ingroup jkqtptools
*/
LIB_EXPORT JKQTPCAdrawMode String2JKQTPCAdrawMode(QString pos);
/** \brief display mode for the axis labels
* \ingroup jkqtptools */
enum JKQTPCAlabelType {
JKQTPCALTdefault, /*!< \brief simply print the numbers */
JKQTPCALTexponentCharacter, /*!< \brief print the numbers and show a unit character, i.e. \c 5<> for \f$ 5\cdot10^{-6} \f$ , \cd 3k for \f$ 3\cdot10^3 \f$ ... */
JKQTPCALTexponent, /*!< \brief show numbers in exponential for, e.g. \f$ 3\cdot10^5 \f$ ... */
JKQTPCALTdate, /*!< \brief show numbers as dates */
JKQTPCALTtime, /*!< \brief show numbers as times */
JKQTPCALTdatetime, /*!< \brief show numbers as times */
};
/** \brief mode of the axis ticks
* \ingroup jkqtptools */
enum JKQTPLabelTickMode {
JKQTPLTMLinOrPower=0, /*!< \brief linear, or log, depending on whether the axis is log */
JKQTPLTMLin, /*!< \brief always linear (even for log-axes) */
JKQTPLTMPower, /*!< \brief powers (of the log-base) */
};
/** \brief converts a JKQTPLabelTickMode variable into a human-readable string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTPLabelTickMode2String(JKQTPLabelTickMode pos);
/** \brief converts a string into a JKQTPLabelTickMode
* \ingroup jkqtptools
*/
LIB_EXPORT JKQTPLabelTickMode String2JKQTPLabelTickMode(QString pos);
/** \brief converts a JKQTPCAlabelType variable into a human-readable string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTPCAlabelType2String(JKQTPCAlabelType pos);
/** \brief converts a string into a JKQTPCAlabelType
* \ingroup jkqtptools
*/
LIB_EXPORT JKQTPCAlabelType String2JKQTPCAlabelType(QString pos);
/** \brief position of the axis labels
* \ingroup jkqtptools
*/
enum JKQTPlabelPosition {
JKQTPlabelMin=0, /*!< \brief the axis label is near the min value of the axis (left/bottom) */
JKQTPlabelMax, /*!< \brief the axis label is near the max value of the axis (right/top) */
JKQTPlabelCenter /*!< \brief the label is at the center of the axis */
};
/** \brief converts a JKQTPlabelPosition variable into a human-readable string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTPlabelPosition2String(JKQTPlabelPosition pos);
/** \brief converts a string into a JKQTPlabelPosition
* \ingroup jkqtptools
*/
LIB_EXPORT JKQTPlabelPosition String2JKQTPlabelPosition(QString pos);
/** \brief position of the key
* \ingroup jkqtptools
*/
enum JKQTPkeyPosition {
JKQTPkeyOutsideTopRight=0, /*!< \brief the key is positioned on the right side of the graph */
JKQTPkeyOutsideTopLeft, /*!< \brief the key is positioned on the left side of the graph */
JKQTPkeyOutsideLeftTop, /*!< \brief the key is positioned above the graph */
JKQTPkeyOutsideLeftBottom, /*!< \brief the key is positioned below the graph */
JKQTPkeyOutsideRightBottom, /*!< \brief the key is positioned on the right side of the graph */
JKQTPkeyOutsideRightTop, /*!< \brief the key is positioned on the left side of the graph */
JKQTPkeyOutsideBottomLeft, /*!< \brief the key is positioned above the graph */
JKQTPkeyOutsideBottomRight, /*!< \brief the key is positioned below the graph */
JKQTPkeyInsideTopRight, /*!< \brief the key is positioned inside on the right side of the graph, but inside the graph*/
JKQTPkeyInsideTopLeft, /*!< \brief the key is positioned inside on the left side of the graph */
JKQTPkeyInsideBottomLeft, /*!< \brief the key is positioned inside on the upper bound of the graph */
JKQTPkeyInsideBottomRight /*!< \brief the key is positioned inside on the lower bound of the graph */
};
/** \brief converts a JKQTPlabelPosition variable into a human-readable string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTPkeyPosition2String(JKQTPkeyPosition pos);
/** \brief converts a string into a JKQTPlabelPosition
* \ingroup jkqtptools
*/
LIB_EXPORT JKQTPkeyPosition String2JKQTPkeyPosition(QString pos);
/** \brief layout of the key
* \ingroup jkqtptools
*/
enum JKQTPkeyLayout {
JKQTPkeyLayoutOneColumn, /*!< \brief the key consists of one column */
JKQTPkeyLayoutOneRow, /*!< \brief the key consists of one row */
JKQTPkeyLayoutMultiColumn, /*!< \brief the key consists of multiple columns */
};
/** \brief converts a JKQTPkeyLayout variable into a human-readable string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTPkeyLayout2String(JKQTPkeyLayout pos);
/** \brief converts a String into a JKQTPkeyLayout
* \ingroup jkqtptools
*/
LIB_EXPORT JKQTPkeyLayout String2JKQTPkeyLayout(QString pos);
/** \brief used to represent the position of other graphs in \ref jkqtplotter_base_saveprint
* \ingroup jkqtptools
*/
typedef struct {
size_t x;
size_t y;
JKQtBasePlotter* plotter;
} JKQTPgridPrintingItem;
/**
* \brief create a property variable and a default variable for it. Also creates a doxygen comment for the default variable
* \ingroup jkqtptools
*/
#define JKQTPPROPERTY(type,varname) \
type varname; \
/*! \brief default value for property property varname. \see varname for more information */ \
type def_##varname;
/**
* \brief saves the given property (for which also a def_property exists) into the given settings object
* \ingroup jkqtptools
*/
#define JKQTPPROPERTYsave(settings, group, var, varname) \
if (var!=def_##var) settings.setValue(group+varname, var);
/**
* \brief loads the given property from the given settings object
* \ingroup jkqtptools
*/
#define JKQTPPROPERTYload(settings, group, var, varname, varconvert) \
var=settings.value(group+varname, var).varconvert;
/** \brief plot styles for the error information
* \ingroup jkqtplotter
*/
enum JKQTPerrorPlotstyle {
JKQTPerrorEllipses=10, /*!< \brief an ellipse spanned by the errors */
JKQTPerrorBoxes=9, /*!< \brief a box spanned by the errors */
JKQTPerrorSimpleBarsPolygons=8, /*!< \brief simplified error barsand polygons for each data point */
JKQTPerrorSimpleBarsLines=7, /*!< \brief simplified error bars and line for each data point */
JKQTPerrorSimpleBars=6, /*!< \brief simplified error bars for each data point */
JKQTPerrorLines=5, /*!< \brief a second and third graph line above and below the actual data which indicates the error value */
JKQTPerrorBars=4, /*!< \brief error bars for each data point */
JKQTPerrorPolygons=3, /*!< \brief line error lines, but with filled range in between */
JKQTPerrorBarsLines=2, /*!< \brief error bars and lines for each data point */
JKQTPerrorBarsPolygons=1, /*!< \brief error bars and polygons for each data point */
JKQTPnoError=0 /*!< \brief don't show error information */
};
/** \brief converts a JKQTPerrorPlotstyle variable into a human-readable string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTPerrorPlotstyle2String(JKQTPerrorPlotstyle pos);
/** \brief converts a String into a JKQTPerrorPlotstyle
* \ingroup jkqtptools
*/
LIB_EXPORT JKQTPerrorPlotstyle String2JKQTPerrorPlotstyle(QString pos);
/** \brief plot styles for a graph
* \ingroup jkqtplotter
*/
enum JKQTPgraphPlotstyle {
JKQTPlines, /*!< \brief plot y=f(x), connect the datapoints by straight lines */
JKQTPfilledCurveX, /*!< \brief plot y=f(x), as filled curve (filled until the y=0/x-axis) */
JKQTPfilledCurveY, /*!< \brief plot x=f(y), as filled curve (filled until the x=0/y-axis) */
JKQTPpoints, /*!< \brief plot y=f(x), plot each datapoint with a symbol */
JKQTPlinesPoints, /*!< \brief plot y=f(x), plot each datapoint with a symbol and connect them by straight lines */
JKQTPimpulsesHorizontal, /*!< \brief plot y=f(x), plot each datapoint as a line from (x,0) to (x,f(x)) */
JKQTPimpulsesVertical, /*!< \brief plot x=f(y), plot each datapoint as a line from (0,f(x)) to (x,f(x)) */
JKQTPstepsX, /*!< \brief plot y=f(x), as a step curve */
JKQTPstepsY /*!< \brief plot x=f(y), as a step curve */
};
/** \brief symbols that can be used to plot a datapoint for a graph
* \ingroup jkqtplotter
*/
enum JKQTPgraphSymbols {
JKQTPnoSymbol=0, /*!< \brief plots no symbol at all (usefull together with error bars) */
JKQTPdot=1, /*!< \brief a small dot */
JKQTPcross=2, /*!< \brief a X cross */
JKQTPplus=3, /*!< \brief a + cross */
JKQTPcircle=4, /*!< \brief an unfilled circle */
JKQTPfilledCircle=5, /*!< \brief a filled circle */
JKQTPrect=6, /*!< \brief an unfilled rectangle */
JKQTPfilledRect=7, /*!< \brief a filled rectangle */
JKQTPtriangle=8, /*!< \brief an unfilled triangle (tip at top) */
JKQTPfilledTriangle=9, /*!< \brief a filled triangle (tip at top) */
JKQTPdownTriangle=10, /*!< \brief an unfilled triangle (tip at bottom) */
JKQTPfilledDownTriangle=11, /*!< \brief a filled triangle (tip at bottom) */
JKQTPdiamond=12, /*!< \brief an unfilled diamond */
JKQTPfilledDiamond=13, /*!< \brief a filled diamond */
JKQTPstar=14, /*!< \brief an unfilled diamond */
JKQTPfilledStar=15, /*!< \brief a filled diamond */
JKQTPpentagon=16, /*!< \brief an unfilled pentagon */
JKQTPfilledPentagon=17, /*!< \brief a filled pentagon */
JKQTPasterisc=18, /*!< \brief an asterisc star '*' */
JKQTPtarget=19, /*!< \brief a target symbol (circle with cross) */
JKQTPrectCross=20, /*!< \brief a square symbol with a cross inside */
JKQTPrectPlus=21, /*!< \brief a square symbol with a plus inside */
JKQTPmaxSymbolID=JKQTPrectPlus
};
/** \brief converts a JKQTPgraphSymbols variable into a identifier string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTPgraphSymbols2String(JKQTPgraphSymbols pos);
/** \brief converts a JKQTPgraphSymbols variable into a human-readable string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTPgraphSymbols2NameString(JKQTPgraphSymbols pos);
/** \brief converts a String into a JKQTPgraphSymbols
* \ingroup jkqtptools
*/
LIB_EXPORT JKQTPgraphSymbols String2JKQTPgraphSymbols(QString pos);
/** \brief convert a double to a string, using the loacle "C"
* \ingroup jkqtptools
*/
inline QString JKQTPCDoubleToQString(double value) {
QLocale loc=QLocale::c();
loc.setNumberOptions(QLocale::OmitGroupSeparator);
return loc.toString(value, 'g', 18);
}
/** \brief convert a double to a string
* \ingroup jkqtptools
*/
inline QString JKQTPDoubleToQString(double value, int prec = 10, char f = 'g', QChar decimalSeparator='.') {
QLocale loc=QLocale::c();
loc.setNumberOptions(QLocale::OmitGroupSeparator);
QString res=loc.toString(value, f, prec);
if (loc.decimalPoint()!=decimalSeparator) {
res=res.replace(loc.decimalPoint(), decimalSeparator);
}
return res;
}
/** \brief rotate a rectangle by given angle (rotates all points around the center of the rectangle and returns it as a QPolygonF)
* \ingroup jkqtptools
*/
LIB_EXPORT QPolygonF jkqtpRotateRect(QRectF r, double angle);
/*! \brief swap two elements \a l and \a r in an array \a a
\ingroup jkqtptools
*/
template <class T>
inline void jkqtpSwap(T* a, int l, int r){
const T tmp=a[l];
a[l]=a[r];
a[r]=tmp;
}
/*! \brief QuickSort (recursive implementation)
\ingroup jkqtptools
implementation from http://www.linux-related.de/index.html?/coding/sort/sort_quick.htm
*/
template <class T>
inline void jkqtpQuicksort(T* a, int l, int r){
if(r>l){
int i=l-1;
int j=r;
for(;;){
while(a[++i]<a[r]);
while(a[--j]>a[r] && j>i);
if(i>=j) break;
jkqtpSwap<T>(a, i, j);
}
jkqtpSwap<T>(a, i, r);
jkqtpQuicksort(a, l, i-1);
jkqtpQuicksort(a, i+1, r);
}
}
/*! \brief QuickSort (recursive implementation), sorts \a a2 alongside \a a, using \a a as sort criterion
\ingroup jkqtptools
implementation from http://www.linux-related.de/index.html?/coding/sort/sort_quick.htm
*/
template <class T, class T2>
inline void jkqtpQuicksort(T* a, T2* a2, int l, int r){
if(r>l){
int i=l-1;
int j=r;
for(;;){
while(a[++i]<a[r]);
while(a[--j]>a[r] && j>i);
if(i>=j) break;
jkqtpSwap(a, i, j);
jkqtpSwap(a2, i, j);
}
jkqtpSwap(a, i, r);
jkqtpSwap(a2, i, r);
jkqtpQuicksort(a, a2, l, i-1);
jkqtpQuicksort(a, a2, i+1, r);
}
}
/*! \brief sort the given arrays, using \a input as sort criterion
\ingroup jkqtptools
\param input array to be sorted
\param input2 array to be sorted
\param N size of the array input
\param output if \c !=nullptr data is written here (the memory location pointed at by \a output has to have at least the length \a N !!!),
otherwise the array input is sorted inplace.
\param output2 if \c !=nullptr data is written here (the memory location pointed at by \a output has to have at least the length \a N !!!),
otherwise the array input is sorted inplace.
*/
template <class T, class T2>
inline void jkqtpSort(T* input, T2* input2, int N, T* output=nullptr, T2* output2=nullptr) {
if ((!input)) return ;
if (N<=0) return;
T* data=input;
if (output!=nullptr) {
data=output;
memcpy(output, input, N*sizeof(T));
}
T2* data2=input2;
if (output2!=nullptr && input2!=nullptr) {
data2=output2;
memcpy(output2, input2, N*sizeof(T2));
}
jkqtpQuicksort(data, data2, 0, N-1);
}
/** \brief RAII construct that times its lifetime, outputting properly indented qDebug()-message
* \ingroup jkqtptools
*/
class LIB_EXPORT JKQTPAutoOutputTimer : public QElapsedTimer
{
public:
explicit JKQTPAutoOutputTimer(const QString& message);
~JKQTPAutoOutputTimer();
void write(const QString& message) const;
protected:
QString message;
QString indent;
static int global_indent;
};
/** \brief convert a string to lower-case characters
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_tolower(const std::string& s);
/** \brief convert a string to a boolean
* \ingroup jkqtptools
*/
LIB_EXPORT bool jkqtp_strtobool(std::string data);
/** \brief convert a string to upper-case
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_toupper(const std::string& s);
/** \brief std::string wrapper around sprintf()
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_format(const std::string& templ, ...);
/** \brief convert a number of bytes to a string, formatting e.g. 1024 as 1kB, ...
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_bytestostr(double bytes);
/** \brief convert an integer to a string
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_inttostr(long data);
/** \brief convert an integer to a hex string
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_inttohex(long data);
/** \brief convert an unsigned int to a string
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_uinttostr(unsigned long data);
/** \brief convert a double to a string
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_floattostr(double data, int past_comma=-1, bool remove_trail0=false, double belowIsZero=1e-16);
/** \brief convert a double to a string, encoding powers of ten as characters, e.g. \c jkqtp_floattounitstr(1000,"g") will result in "1kg"
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_floattounitstr(double dataa, std::string unitname);
/** \brief convert a boolean to a string
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_booltostr(bool data);
/** \brief converts a RGBA color into a string
* \ingroup jkqtptools
*
* This returns a QString which contains the name of named colors and the RGBA values in a QT readable form othertwise.
*/
LIB_EXPORT std::string jkqtp_rgbtostring(unsigned char r, unsigned char g, unsigned char b, unsigned char a=255);
/** \brief converts a QColor into a string using the jkqtp_rgbtostring() method.
* \ingroup jkqtptools
*
* This returns a QString which contains the name of named colors and the RGBA values in a QT readable form othertwise.
*/
inline QString JKQTP_QColor2String(QColor color) {
return QString(jkqtp_rgbtostring(static_cast<unsigned char>((color).red()), static_cast<unsigned char>((color).green()), static_cast<unsigned char>((color).blue()), static_cast<unsigned char>((color).alpha())).c_str());
}
/** \brief clean a string to be usable as a variable name, e.g. in an expression parser, or a C++-expression
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_to_valid_variable_name(std::string input);
/** \brief convert a double to a string, encoding powers of ten as characters, e.g. \c jkqtp_floattounitstr(1000) will result in "1k"
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_floattounitstr(double data, int past_comma=5, bool remove_trail0=false);
/** \brief convert a double to a string, encoding powers of ten as exponent in LaTeX notation (e.g. \c -1.23\cdot10^{-5})
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_floattolatexstr(double data, int past_comma=5, bool remove_trail0=false, double belowIsZero=1e-16, double minNoExponent=1e-3, double maxNoExponent=1e4);
/** \brief convert a double to a string, encoding powers of ten as exponent with HTML tags
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_floattohtmlstr(double data, int past_comma=5, bool remove_trail0=false, double belowIsZero=1e-16, double minNoExponent=1e-3, double maxNoExponent=1e4);
/** \brief convert a character to a string
* \ingroup jkqtptools
*/
LIB_EXPORT std::string jkqtp_chartostr(char data);
/** \brief wandelt einen Datentyp in einen double um, wird von JKQTPDatastore zur Wandlung benutzt
*
* Diese Funktion nutzt per default static_cast<double>(), kann aber f<>r spezielle Datentypen <20>berschrieben werden, etwa f<>r bool
*/
template<typename T>
inline constexpr double jkqtp_todouble(const T& d) {
return static_cast<double>(d);
}
/** \brief wandelt einen boolean in einen double um, wird von JKQTPDatastore zur Wandlung benutzt,
* Spezialisierung f<>r bool (true -> 1.0, false -> 0.0) */
template<>
inline constexpr double jkqtp_todouble(const bool& d) {
return static_cast<double>((d)?1.0:0.0);
}
/** \brief plot styles for the error information
* \ingroup jkqtplotter
*/
enum JKQTPstepType {
JKQTPstepLeft=0, /*!< \brief datapoint is on the left edge of the hor. step line */
JKQTPstepCenter=1, /*!< \brief datapoint is centered on the hor. step line */
JKQTPstepRight=2, /*!< \brief datapoint is on the right edge of the hor. step line */
};
/** \brief converts a JKQTPstepType variable into a human-readable string
* \ingroup jkqtptools
*/
LIB_EXPORT QString JKQTPstepType2String(JKQTPstepType pos);
/** \brief converts a String into a JKQTPstepType
* \ingroup jkqtptools
*/
LIB_EXPORT JKQTPstepType String2JKQTPstepType(QString pos);
#endif // JKQTPTOOLS_H_INCLUDED
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