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//
// Copyright (c) 1994, 1995, 2006 by Mike Romberg ( mike.romberg@noaa.gov )
//
// This file may be distributed under terms of the GPL
//
#ifndef _METER_H_
#define _METER_H_
#include "xosview.h"
#include <iostream>
class Meter {
public:
Meter( XOSView *parent, const char *title = "", const char *legend ="",
int docaptions = 0, int dolegends = 0, int dousedlegends = 0 );
virtual ~Meter( void );
virtual const char *name( void ) const { return "Meter"; }
void resize( int x, int y, int width, int height );
virtual void checkevent( void ) = 0;
virtual void draw( void ) = 0;
void title( const char *title );
const char *title( void ) { return title_; }
void legend( const char *legend );
const char *legend( void ) { return legend_; }
void docaptions( int val ) { docaptions_ = val; }
void dolegends( int val ) { dolegends_ = val; }
void dousedlegends( int val ) { dousedlegends_ = val; }
int requestevent( void ){
if (priority_ == 0) {
std::cerr << "Warning: meter " << name() << " had an invalid priority "
<< "of 0. Resetting to 1..." << std::endl;
priority_ = 1;
}
int rval = counter_ % priority_;
counter_ = (counter_ + 1) % priority_;
return !rval;
}
int getX() const { return x_; }
int getY() const { return y_; }
int getWidth() const { return width_; }
int getHeight() const { return height_; }
virtual void checkResources( void );
static double scaleValue( double value, char *scale, bool metric );
protected:
XOSView *parent_;
int x_, y_, width_, height_, docaptions_, dolegends_, dousedlegends_;
int priority_, counter_;
char *title_, *legend_;
unsigned long textcolor_;
double samplesPerSecond() { return 1.0*MAX_SAMPLES_PER_SECOND/priority_; }
double secondsPerSample() { return 1.0/samplesPerSecond(); }
private:
};
#endif
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