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Filter: extend range of allowed temperatures

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The temperature range 0-100 was inadequate in both supported
scales (Celsius and Fahrenheit). Extend the range to encompass
all physically meaningful values in both scales.

Use the default-values to set the minimum and maximum of the
UI-fields. Thus, these values are configurable in a single place.

In the future we should use a scale-independent representation
(e.g. mkelvin as in the rest of the code base). But this would
mean implementing a custom widget with a conversion function.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-01-20 21:15:46 +01:00 committed by Dirk Hohndel
parent b28e0bf0b9
commit 1470048773
2 changed files with 14 additions and 4 deletions
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7
desktop-widgets/filterwidget2.cpp
View file

@ -10,6 +10,13 @@ FilterWidget2::FilterWidget2(QWidget* parent) : QWidget(parent)
ui.setupUi(this);
FilterData data;
// Use default values to set minimum and maximum air and water temperature.
ui.minAirTemp->setRange(data.minAirTemp, data.maxAirTemp);
ui.maxAirTemp->setRange(data.minAirTemp, data.maxAirTemp);
ui.minWaterTemp->setRange(data.minWaterTemp, data.maxWaterTemp);
ui.maxWaterTemp->setRange(data.minWaterTemp, data.maxWaterTemp);
ui.minRating->setCurrentStars(data.minRating);
ui.maxRating->setCurrentStars(data.maxRating);
ui.minVisibility->setCurrentStars(data.minVisibility);

11
qt-models/filtermodels.h
View file

@ -20,10 +20,13 @@ struct FilterData {
int maxVisibility = 5;
int minRating = 0;
int maxRating = 5;
double minWaterTemp = 0;
double maxWaterTemp = 100;
double minAirTemp = 0;
double maxAirTemp = 100;
// The default minimum and maximum temperatures are set such that all
// physically reasonable dives are shown. Note that these values should
// work for both Celcius and Fahrenheit scales.
double minWaterTemp = -10;
double maxWaterTemp = 200;
double minAirTemp = -50;
double maxAirTemp = 200;
QDateTime fromDate;
QTime fromTime;
QDateTime toDate = QDateTime::currentDateTime();