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_double_interval.h" 
   25     static int compareEps(
 
   26         double value1, 
double value2, 
double intervalSize);
 
   28     static double ceilEps(
double value, 
double intervalSize);
 
   29     static double floorEps(
double value, 
double intervalSize);
 
   31     static double divideEps(
double interval, 
double steps);
 
   33     static double ceil125(
double x);
 
   34     static double floor125(
double x);
 
   81     void setAttribute(Attribute, 
bool on = 
true);
 
   82     bool testAttribute(Attribute) 
const;
 
   84     void setAttributes(
int);
 
   85     int attributes() 
const;
 
   87     void setReference(
double reference);
 
   88     double reference() 
const;
 
   90     void setMargins(
double lower, 
double upper);
 
   91     double lowerMargin() 
const;
 
   92     double upperMargin() 
const;
 
  102     virtual void autoScale(
int maxNumSteps, 
 
  103         double &x1, 
double &x2, 
double &stepSize) 
const = 0;
 
  115     virtual QwtScaleDiv divideScale(
double x1, 
double x2,
 
  116         int maxMajSteps, 
int maxMinSteps, 
 
  117         double stepSize = 0.0) 
const = 0;
 
  125     double divideInterval(
double interval, 
int numSteps) 
const;
 
  145         double &x1, 
double &x2, 
double &stepSize) 
const;
 
  148         int numMajorSteps, 
int numMinorSteps,
 
  149         double stepSize = 0.0) 
const;
 
  155         double stepSize) 
const;
 
  160         QwtValueList ticks[QwtScaleDiv::NTickTypes]) 
const;
 
  162     void buildMinorTicks(
 
  163         const QwtValueList& majorTicks,
 
  164         int maxMinMark, 
double step,
 
  165         QwtValueList &, QwtValueList &) 
const;
 
  167     QwtValueList buildMajorTicks(
 
  186         double &x1, 
double &x2, 
double &stepSize) 
const;
 
  189         int numMajorSteps, 
int numMinorSteps,
 
  190         double stepSize = 0.0) 
const;
 
  200         double stepSize) 
const;
 
  204         QwtValueList ticks[QwtScaleDiv::NTickTypes]) 
const;
 
  206     QwtValueList buildMinorTicks(
 
  207         const QwtValueList& majorTicks,
 
  208         int maxMinMark, 
double step) 
const;
 
  210     QwtValueList buildMajorTicks(