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profile: fix displaying of gas pressures

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Due to bit-rot the gas pressure and gas type were displayed on top
of each other. I don't understand the meaning of the old code
[log10(log10(axisRange))] (!). Therefore let's just add the height
of the label to separate the labels.

Probably needs some fine-tuning.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2021-10-09 10:33:22 +02:00 committed by Dirk Hohndel
parent 85d1e1d199
commit 56f6e5051f
1 changed files with 5 additions and 12 deletions
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17
profile-widget/diveprofileitem.cpp
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@ -471,8 +471,7 @@ void DiveGasPressureItem::replot(const dive *d, int fromIn, int toIn, bool in_pl
QFlags<Qt::AlignmentFlag> alignVar = Qt::AlignTop;
std::vector<QFlags<Qt::AlignmentFlag>> align(pInfo->nr_cylinders);
double axisRange = (vAxis.maximum() - vAxis.minimum())/1000; // Convert axis pressure range to bar
double axisLog = log10(log10(axisRange));
double labelHeight = DiveTextItem::fontHeight(dpr, 1.0);
for (int i = from; i < to; i++) {
const struct plot_data *entry = pInfo->entry + i;
@ -484,17 +483,11 @@ void DiveGasPressureItem::replot(const dive *d, int fromIn, int toIn, bool in_pl
continue;
if (!seen_cyl[cyl]) {
double value_y_offset, label_y_offset;
// Magic Y offset depending on whether we're aliging
// the top of the text or the bottom of the text to
// the pressure line.
value_y_offset = -0.5;
if (alignVar & Qt::AlignTop) {
label_y_offset = 5 * axisLog;
} else {
label_y_offset = -7 * axisLog;
}
double value_y_offset = -0.5;
double label_y_offset = alignVar & Qt::AlignTop ? labelHeight : -labelHeight;
plotPressureValue(mbar, entry->sec, alignVar, value_y_offset);
plotGasValue(mbar, entry->sec, get_cylinder(d, cyl)->gasmix, alignVar, label_y_offset);
seen_cyl[cyl] = true;
@ -523,7 +516,7 @@ void DiveGasPressureItem::plotPressureValue(int mbar, int sec, QFlags<Qt::Alignm
int pressure = get_pressure_units(mbar, &unit);
DiveTextItem *text = new DiveTextItem(dpr, 1.0, align, this);
text->set(QString("%1%2").arg(pressure).arg(unit), getColor(PRESSURE_TEXT));
text->setPos(hAxis.posAtValue(sec), vAxis.posAtValue(mbar) + pressure_offset );
text->setPos(hAxis.posAtValue(sec), vAxis.posAtValue(mbar) + pressure_offset);
texts.push_back(text);
}
@ -532,7 +525,7 @@ void DiveGasPressureItem::plotGasValue(int mbar, int sec, struct gasmix gasmix,
QString gas = get_gas_string(gasmix);
DiveTextItem *text = new DiveTextItem(dpr, 1.0, align, this);
text->set(gas, getColor(PRESSURE_TEXT));
text->setPos(hAxis.posAtValue(sec), vAxis.posAtValue(mbar) + gasname_offset );
text->setPos(hAxis.posAtValue(sec), vAxis.posAtValue(mbar) + gasname_offset);
texts.push_back(text);
}