2016-09-02 16:22:34 +02:00

110 lines
3.5 KiB
C++

/**
* @author Ian Johnson
* @version 1.0
*/
#include <iostream>
#include <qwt_plot.h>
#include <qwt_scale_div.h>
#include "SlsQt1DPlot.h"
#include "SlsQt1DZoomer.h"
using namespace std;
void SlsQt1DZoomer::ResetZoomBase(){
SetZoomBase(x0,y0,x1-x0,y1-y0); //for going between log and nonlog plots
}
void SlsQt1DZoomer::SetZoomBase(double xmin,double ymin,double x_width, double y_width){
if(xIsLog&&xmin<=0){
double xmax = xmin+x_width;
xmin = firstXgt0*0.98;
if(xmax<=xmin) x_width=firstXgt0;
else x_width=xmax-xmin;
}
if(yIsLog&&ymin<=0){
double ymax = ymin+y_width;
ymin = firstYgt0*0.98;
if(ymax<=ymin) y_width=firstYgt0;
else y_width=ymax-ymin;
}
if(plot()){
if(xIsLog){
#if QWT_VERSION < 0x50200
float xmin_curr = plot()->axisScaleDiv(QwtPlot::xBottom)->lBound();
float xmax_curr = plot()->axisScaleDiv(QwtPlot::xBottom)->hBound();
#elif QWT_VERSION < 0x060100
float xmin_curr = plot()->axisScaleDiv(QwtPlot::xBottom)->lowerBound();
float xmax_curr = plot()->axisScaleDiv(QwtPlot::xBottom)->upperBound();
#else
float xmin_curr = plot()->axisScaleDiv(QwtPlot::xBottom).lowerBound();
float xmax_curr = plot()->axisScaleDiv(QwtPlot::xBottom).upperBound();
#endif
if(xmin_curr<xmin) xmin_curr=xmin;
if(xmax_curr>xmin+x_width) xmax_curr=xmin+x_width;
plot()->setAxisScale(QwtPlot::xBottom,xmin_curr,xmax_curr);
}
if(yIsLog){
#if QWT_VERSION < 0x50200
float ymin_curr = plot()->axisScaleDiv(QwtPlot::yLeft)->lBound();
float ymax_curr = plot()->axisScaleDiv(QwtPlot::yLeft)->hBound();
#elif QWT_VERSION < 0x060100
float ymin_curr = plot()->axisScaleDiv(QwtPlot::yLeft)->lowerBound();
float ymax_curr = plot()->axisScaleDiv(QwtPlot::yLeft)->upperBound();
#else
float ymin_curr = plot()->axisScaleDiv(QwtPlot::yLeft).lowerBound();
float ymax_curr = plot()->axisScaleDiv(QwtPlot::yLeft).upperBound();
#endif
if(ymin_curr<ymin) ymin_curr=ymin;
if(ymax_curr>ymin+y_width) ymax_curr=ymin+y_width;
plot()->setAxisScale(QwtPlot::yLeft,ymin_curr,ymax_curr);
}
plot()->replot();
}
#if QWT_VERSION<0x060000
setZoomBase(QwtDoubleRect(xmin,ymin,x_width,y_width));
#else
setZoomBase(QRectF(xmin,ymin,x_width,y_width));
#endif
}
void SlsQt1DZoomer::SetZoomBase(SlsQtH1D* h){
x0 = h->GetXMin()<0 ? h->GetXMin()*1.02 : h->GetXMin()/1.02;
x1 = h->GetXMax()<0 ? h->GetXMax()/1.02 : h->GetXMax()*1.02;
y0 = h->GetYMin()<0 ? h->GetYMin()*1.02 : h->GetYMin()/1.02;
y1 = h->GetYMax()<0 ? h->GetYMax()/1.02 : h->GetYMax()*1.02;
firstXgt0 = h->GetFirstXgtZero(); //for log plots
firstYgt0 = h->GetFirstYgtZero(); //for log plots
ResetZoomBase();
}
void SlsQt1DZoomer::ExtendZoomBase(SlsQtH1D* h){
double h_x0 = h->GetXMin()<0 ? h->GetXMin()*1.02 : h->GetXMin()/1.02;
double h_x1 = h->GetXMax()<0 ? h->GetXMax()/1.02 : h->GetXMax()*1.02;
double h_y0 = h->GetYMin()<0 ? h->GetYMin()*1.02 : h->GetYMin()/1.02;
double h_y1 = h->GetYMax()<0 ? h->GetYMax()/1.02 : h->GetYMax()*1.02;
if(h_x0<x0) x0 = h_x0;
if(h_x1>x1) x1 = h_x1;
if(h_y0<y0) y0 = h_y0;
if(h_y1>y1) y1 = h_y1;
if(h->GetFirstXgtZero()<firstXgt0) firstXgt0 = h->GetFirstXgtZero();
if(h->GetFirstYgtZero()<firstYgt0) firstYgt0 = h->GetFirstYgtZero();
// cout<<"extend "<<h_x0<<" "<<h_y0<<" "<<h_x1<<" "<<h_y1<<endl;
// cout<<"extend "<<x0<<" "<<y0<<" "<<x1-x0<<" "<<y1-y0<<endl;
ResetZoomBase();
}