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Cleanup: provide our own qOverload<> implementation.

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This is only in Qt 5.7 and therefore can't be used in Qt 5.5 and 5.6
builds. Moreover, we can't simply reuse Qt's version owing to
licensing concerns.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-04-04 22:00:38 +02:00 • committed by Dirk Hohndel
parent b0e1d88634
commit 0eb00ed700
2 changed files with 23 additions and 13 deletions
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21
desktop-widgets/filterwidget2.cpp
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@ -52,21 +52,16 @@ FilterWidget2::FilterWidget2(QWidget* parent) :
connect(ui.minVisibility, &StarWidget::valueChanged,
this, &FilterWidget2::updateFilter);
// We need these insane casts because Qt decided to function-overload some of their signals(!).
// QDoubleSpinBox::valueChanged() sends double and QString using the same signal name.
// QComboBox::currentIndexChanged() sends int and QString using the same signal name.
// Qt 5.7 provides a "convenient" helper that hides this, but only if compiling in C++14
// or higher. One can then write: "QOverload<double>(&QDoubleSpinBox::valueChanged)", etc.
connect(ui.maxAirTemp, static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),
connect(ui.maxAirTemp, QOverload<double>::of(&QDoubleSpinBox::valueChanged),
this, &FilterWidget2::updateFilter);
connect(ui.minAirTemp, static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),
connect(ui.minAirTemp, QOverload<double>::of(&QDoubleSpinBox::valueChanged),
this, &FilterWidget2::updateFilter);
connect(ui.maxWaterTemp, static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),
connect(ui.maxWaterTemp, QOverload<double>::of(&QDoubleSpinBox::valueChanged),
this, &FilterWidget2::updateFilter);
connect(ui.minWaterTemp, static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),
connect(ui.minWaterTemp, QOverload<double>::of(&QDoubleSpinBox::valueChanged),
this, &FilterWidget2::updateFilter);
connect(ui.fromDate, &QDateTimeEdit::dateChanged,
@ -84,25 +79,25 @@ FilterWidget2::FilterWidget2(QWidget* parent) :
connect(ui.tags, &QLineEdit::textChanged,
this, &FilterWidget2::updateFilter);
connect(ui.tagsMode, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
connect(ui.tagsMode, QOverload<int>::of(&QComboBox::currentIndexChanged),
this, &FilterWidget2::updateFilter);
connect(ui.people, &QLineEdit::textChanged,
this, &FilterWidget2::updateFilter);
connect(ui.peopleMode, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
connect(ui.peopleMode, QOverload<int>::of(&QComboBox::currentIndexChanged),
this, &FilterWidget2::updateFilter);
connect(ui.location, &QLineEdit::textChanged,
this, &FilterWidget2::updateFilter);
connect(ui.locationMode, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
connect(ui.locationMode, QOverload<int>::of(&QComboBox::currentIndexChanged),
this, &FilterWidget2::updateFilter);
connect(ui.suit, &QLineEdit::textChanged,
this, &FilterWidget2::updateFilter);
connect(ui.suitMode, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
connect(ui.suitMode, QOverload<int>::of(&QComboBox::currentIndexChanged),
this, &FilterWidget2::updateFilter);
connect(ui.dnotes, &QLineEdit::textChanged,