10 #ifndef QWT_SCALE_ENGINE_H 
   11 #define QWT_SCALE_ENGINE_H 
   13 #include "qwt_global.h" 
   14 #include "qwt_scale_div.h" 
   15 #include "qwt_interval.h" 
   25     static double ceilEps( 
double value, 
double intervalSize );
 
   26     static double floorEps( 
double value, 
double intervalSize );
 
   28     static double divideEps( 
double interval, 
double steps );
 
   30     static double divideInterval( 
double interval, 
 
   31         int numSteps, uint base );
 
   60         IncludeReference = 0x01,
 
   84     void setBase( uint base );
 
   87     void setAttribute( 
Attribute, 
bool on = 
true );
 
   93     void setReference( 
double reference );
 
   94     double reference() 
const;
 
   96     void setMargins( 
double lower, 
double upper );
 
   97     double lowerMargin() 
const;
 
   98     double upperMargin() 
const;
 
  108     virtual void autoScale( 
int maxNumSteps,
 
  109         double &x1, 
double &x2, 
double &stepSize ) 
const = 0;
 
  123     virtual QwtScaleDiv divideScale( 
double x1, 
double x2,
 
  124         int maxMajorSteps, 
int maxMinorSteps,
 
  125         double stepSize = 0.0 ) 
const = 0;
 
  131     bool contains( 
const QwtInterval &, 
double val ) 
const;
 
  132     QList<double> strip( 
const QList<double>&, 
const QwtInterval & ) 
const;
 
  134     double divideInterval( 
double interval, 
int numSteps ) 
const;
 
  157         double &x1, 
double &x2, 
double &stepSize ) 
const;
 
  160         int numMajorSteps, 
int numMinorSteps,
 
  161                                      double stepSize = 0.0 ) 
const;
 
  168         const QwtInterval &, 
double stepSize, 
int maxMinSteps,
 
  171     QList<double> buildMajorTicks(
 
  172         const QwtInterval &interval, 
double stepSize ) 
const;
 
  174     void buildMinorTicks( 
const QList<double>& majorTicks,
 
  175         int maxMinorSteps, 
double stepSize,
 
  176         QList<double> &minorTicks, QList<double> &mediumTicks ) 
const;
 
  197         double &x1, 
double &x2, 
double &stepSize ) 
const;
 
  200         int numMajorSteps, 
int numMinorSteps,
 
  201         double stepSize = 0.0 ) 
const;
 
  207         const QwtInterval &, 
double stepSize, 
int maxMinSteps,
 
  210     QList<double> buildMajorTicks(
 
  211         const QwtInterval &interval, 
double stepSize ) 
const;
 
  213     void buildMinorTicks( 
const QList<double>& majorTicks,
 
  214         int maxMinorSteps, 
double stepSize,
 
  215         QList<double> &minorTicks, QList<double> &mediumTicks ) 
const;
 
Base class for scale engines. 
Definition: qwt_scale_engine.h:45
QFlags< Attribute > Attributes
Layout attributes. 
Definition: qwt_scale_engine.h:79
A class representing a scale division. 
Definition: qwt_scale_div.h:36
virtual QwtScaleDiv divideScale(double x1, double x2, int maxMajorSteps, int maxMinorSteps, double stepSize=0.0) const =0
Calculate a scale division. 
A scale engine for linear scales. 
Definition: qwt_scale_engine.h:150
Number of valid tick types. 
Definition: qwt_scale_div.h:55
Arithmetic including a tolerance. 
Definition: qwt_scale_engine.h:22
virtual void autoScale(int maxNumSteps, double &x1, double &x2, double &stepSize) const =0
A scale engine for logarithmic scales. 
Definition: qwt_scale_engine.h:190
A class representing an interval. 
Definition: qwt_interval.h:26
Attribute
Definition: qwt_scale_engine.h:54