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https://github.com/clementine-player/Clementine
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f04657e7e7
QRandomGenerator was introduced in 5.10 and qrand has since been deprecated. QRandomGenerator::global() returns a global instance that has been securely seeded. QRandomGenerator provides methods that generate values within ranges, so taking a modulus of the result isn't necessary.
82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
/* This file is part of Clementine.
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Copyright 2011, David Sansome <me@davidsansome.com>
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "closure.h"
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#include "core/timeconstants.h"
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
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#include <QRandomGenerator>
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#endif
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namespace _detail {
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ClosureBase::ClosureBase(ObjectHelper* helper) : helper_(helper) {}
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ClosureBase::~ClosureBase() {}
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CallbackClosure::CallbackClosure(QObject* sender, const char* signal,
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std::function<void()> callback)
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: ClosureBase(new ObjectHelper(sender, signal, this)),
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callback_(callback) {}
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void CallbackClosure::Invoke() { callback_(); }
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ObjectHelper* ClosureBase::helper() const { return helper_; }
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ObjectHelper::ObjectHelper(QObject* sender, const char* signal,
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ClosureBase* closure)
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: closure_(closure) {
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connection_ = connect(sender, signal, SLOT(Invoked()));
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connect(sender, SIGNAL(destroyed()), SLOT(TearDown()));
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}
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void ObjectHelper::TearDown() {
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// For the case that the receiver has been destroyed, disconnect the signal
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// so that Invoke isn't called.
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disconnect(connection_);
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deleteLater();
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}
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void ObjectHelper::Invoked() {
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closure_->Invoke();
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deleteLater();
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}
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void Unpack(QList<QGenericArgument>*) {}
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} // namespace _detail
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_detail::ClosureBase* NewClosure(QObject* sender, const char* signal,
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std::function<void()> callback) {
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return new _detail::CallbackClosure(sender, signal, callback);
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}
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void DoAfter(QObject* receiver, const char* slot, int msec) {
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QTimer::singleShot(msec, receiver, slot);
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}
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void DoInAMinuteOrSo(QObject* receiver, const char* slot) {
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// qrand is deprecated in 5.15
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#if (QT_VERSION < QT_VERSION_CHECK(5, 10, 0))
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int msec = (60 + (qrand() % 60)) * kMsecPerSec;
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#else
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int msec = QRandomGenerator::global()->bounded(60, 120) * kMsecPerSec;
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#endif
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DoAfter(receiver, slot, msec);
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}
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