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//
// Copyright (c) 2014 by Tomi Tapper <tomi.o.tapper@jyu.fi>
//
// This file may be distributed under terms of the GPL
//
// Put code common to *BSD and Linux sensor meters here.
//
#include "sensorfieldmeter.h"
#include <stdio.h>
#include <string.h>
#include <math.h>
SensorFieldMeter::SensorFieldMeter( XOSView *parent, const char *title,
const char *legend, int docaptions,
int dolegends, int dousedlegends )
: FieldMeter( parent, 3, title, legend, docaptions, dolegends, dousedlegends ){
metric_ = true;
negative_ = false;
unit_[0] = '\0';
high_ = low_ = 0.0;
has_low_ = has_high_ = false;
}
SensorFieldMeter::~SensorFieldMeter( void ){
}
void SensorFieldMeter::updateLegend( void ){
char l[32], lscale[2], tscale[2];
double limit = ( negative_ ? low_ : high_ ), total;
total = scaleValue(total_, tscale, true);
if ( (!negative_ && has_high_) || (negative_ && has_low_) ) {
if ( ( 0.1 <= fabs(total_) && fabs(total_) < 9.95 ) ||
( 0.1 <= fabs(limit) && fabs(limit) < 9.95 ) ) {
if ( strlen(unit_) )
snprintf(l, 32, "ACT(%s)/%.1f/%.1f", unit_, limit, total_);
else
snprintf(l, 32, "ACT/%.1f/%.1f", limit, total_);
}
else if ( ( 9.95 <= fabs(total_) && fabs(total_) < 10000 ) ||
( 9.95 <= fabs(limit) && fabs(limit) < 10000 ) ) {
if ( strlen(unit_) )
snprintf(l, 32, "ACT(%s)/%.0f/%.0f", unit_, limit, total_);
else
snprintf(l, 32, "ACT/%.0f/%0.f", limit, total_);
}
else {
limit = scaleValue(limit, lscale, true);
if ( strlen(unit_) )
snprintf(l, 32, "ACT(%s)/%.0f%s/%.0f%s", unit_, limit, lscale, total, tscale);
else
snprintf(l, 32, "ACT/%.0f%s/%.0f%s", limit, lscale, total, tscale);
}
}
else {
if ( ( 0.1 <= fabs(total_) && fabs(total_) < 9.95 ) ||
( 0.1 <= fabs(limit) && fabs(limit) < 9.95 ) ) {
if ( strlen(unit_) )
snprintf(l, 32, "ACT(%s)/%s/%.1f", unit_, ( negative_ ? "LOW" : "HIGH" ), total_);
else
snprintf(l, 32, "ACT/%s/%.1f", ( negative_ ? "LOW" : "HIGH" ), total_);
}
else if ( ( 9.95 <= fabs(total_) && fabs(total_) < 10000 ) ||
( 9.95 <= fabs(limit) && fabs(limit) < 10000 ) ) {
if ( strlen(unit_) )
snprintf(l, 32, "ACT(%s)/%s/%.0f", unit_, ( negative_ ? "LOW" : "HIGH" ), total_);
else
snprintf(l, 32, "ACT/%s/%.0f", ( negative_ ? "LOW" : "HIGH" ), total_);
}
else {
if ( strlen(unit_) )
snprintf(l, 32, "ACT(%s)/%s/%.0f%s", unit_, ( negative_ ? "LOW" : "HIGH" ), total, tscale);
else
snprintf(l, 32, "ACT/%s/%.0f%s", ( negative_ ? "LOW" : "HIGH" ), total, tscale);
}
}
legend(l);
}
/* Check if meter needs to be flipped, or total/limits changed. */
/* Check also if alarm limit is reached. */
/* This is to be called after the values have been read. */
void SensorFieldMeter::checkFields( double low, double high ){
// Most sensors stay at either positive or negative values. Consider the
// actual value and alarm limits when deciding should the meter be showing
// positive or negative scale.
bool do_legend = false;
if (negative_) { // negative at previous run
if (fields_[0] >= 0 || low > 0) { // flip to positive
negative_ = false;
total_ = fabs(total_);
high_ = ( has_high_ ? high : total_ );
low_ = ( has_low_ ? low : 0 );
setfieldcolor( 2, highcolor_ );
do_legend = true;
}
else {
if (has_low_ && low != low_) {
low_ = low;
do_legend = true;
}
if (has_high_ && high != high_)
high_ = high;
}
}
else { // positive at previous run
if ( fields_[0] < 0 && // flip to negative if value and either limit is below 0
( (!has_low_ && !has_high_) || low < 0 || high < 0 ) ) {
negative_ = true;
total_ = -fabs(total_);
high_ = ( has_high_ ? high : 0 );
low_ = ( has_low_ ? low : total_ );
setfieldcolor( 2, lowcolor_ );
do_legend = true;
}
else {
if (has_high_ && high != high_) {
high_ = high;
do_legend = true;
}
if (has_low_ && low != low_)
low_ = low;
}
}
// change total if value or alarms won't fit
double highest = fabs(high_);
if ( fabs(fields_[0]) > highest )
highest = fabs(fields_[0]);
if ( fabs(low_) > highest )
highest = fabs(low_);
if ( highest > fabs(total_) ) {
do_legend = true;
int scale = floor(log10(highest));
total_ = ceil((highest / pow(10, scale)) * 1.25) * pow(10, scale);
if (negative_) {
total_ = -fabs(total_);
if (!has_low_)
low_ = total_;
if (!has_high_)
high_ = 0;
}
else {
if (!has_low_)
low_ = 0;
if (!has_high_)
high_ = total_;
}
}
if (do_legend)
updateLegend();
// check for alarms
if (fields_[0] > high_) { // alarm: T > max
if (colors_[0] != highcolor_) {
setfieldcolor( 0, highcolor_ );
do_legend = true;
}
}
else if (fields_[0] < low_) { // alarm: T < min
if (colors_[0] != lowcolor_) {
setfieldcolor( 0, lowcolor_ );
do_legend = true;
}
}
else {
if (colors_[0] != actcolor_) {
setfieldcolor( 0, actcolor_ );
do_legend = true;
}
}
setUsed(fields_[0], total_);
if (negative_)
fields_[1] = ( fields_[0] < low_ ? 0 : low_ - fields_[0] );
else {
if (fields_[0] < 0)
fields_[0] = 0;
fields_[1] = ( fields_[0] > high_ ? 0 : high_ - fields_[0] );
}
fields_[2] = total_ - fields_[1] - fields_[0];
if (do_legend) {
drawlegend();
drawfields(1); // force drawing in case only limit has changed
}
}
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