90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/*
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QAD - Qt ADvanced
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Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser 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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This program 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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef qad_timers_H
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#define qad_timers_H
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#include "qad_utils_export.h"
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#include <QDebug>
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#include <QMap>
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#include <QTimer>
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#include <pisystemtime.h>
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template<typename Index = int>
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class QAD_UTILS_EXPORT IndexedTimer {
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public:
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~IndexedTimer() {
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for (auto & i: timers)
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i.destroy();
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timers.clear();
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}
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void setIndexedTimerType(Index index, Qt::TimerType type) { timers[index].type = type; }
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void setIndexedTimerSingleShot(Index index, bool yes) { timers[index].single_shot = yes; }
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void bindIndexedTimer(Index index, std::function<void()> func) { timers[index].func = func; }
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void stopIndexedTimer(Index index) {
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auto & t(timers[index]);
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if (!t.isValid()) return;
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t.destroy();
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}
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void startIndexedTimer(Index index, PISystemTime interval, std::function<void()> func = nullptr) {
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stopIndexedTimer(index);
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__TimerSlot & t(timers[index]);
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if (func) t.func = func;
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if (!t.func) {
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qDebug() << "[IndexedTimer] startIndexedTimer error: null function!";
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return;
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}
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t.timer = new QTimer();
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t.timer->setTimerType(t.type);
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t.timer->setSingleShot(t.single_shot);
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QObject::connect(t.timer, &QTimer::timeout, t.func);
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t.timer->start(interval.toMilliseconds());
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}
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bool isIndexedTimerStarted(Index index) const { return timers.value(index).isValid(); }
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PISystemTime indexedTimerRemainingTime(Index index) const {
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const __TimerSlot & t(timers[index]);
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if (!t.timer) return {};
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int ms = t.timer->remainingTime();
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if (ms < 0) return {};
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return PISystemTime::fromMilliseconds(ms);
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}
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private:
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struct __TimerSlot {
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bool isValid() const { return timer; }
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void destroy() {
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if (!timer) return;
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delete timer;
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timer = nullptr;
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}
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std::function<void()> func = nullptr;
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QTimer * timer = nullptr;
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bool single_shot = false;
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Qt::TimerType type = Qt::CoarseTimer;
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};
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QMap<Index, __TimerSlot> timers;
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};
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#endif
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