add to indexedTimer single shot and remaining time

libs/piqt/qad_timers.h

@@ -38,6 +38,7 @@ public:
 	}
 
 	void setIndexedTimerType(Index index, Qt::TimerType type) { timers[index].type = type; }
+	void setIndexedTimerSingleShot(Index index, bool yes) { timers[index].single_shot = yes; }
 	void bindIndexedTimer(Index index, std::function<void()> func) { timers[index].func = func; }
 	void stopIndexedTimer(Index index) {
 		auto & t(timers[index]);
@@ -54,10 +55,18 @@ public:
 		}
 		t.timer = new QTimer();
 		t.timer->setTimerType(t.type);
+		t.timer->setSingleShot(t.single_shot);
 		QObject::connect(t.timer, &QTimer::timeout, t.func);
 		t.timer->start(interval.toMilliseconds());
 	}
 	bool isIndexedTimerStarted(Index index) const { return timers.value(index).isValid(); }
+	PISystemTime indexedTimerRemainingTime(Index index) const {
+		const __TimerSlot & t(timers[index]);
+		if (!t.timer) return {};
+		int ms = t.timer->remainingTime();
+		if (ms < 0) return {};
+		return PISystemTime::fromMilliseconds(ms);
+	}
 
 private:
 	struct __TimerSlot {
@@ -69,6 +78,7 @@ private:
 		}
 		std::function<void()> func = nullptr;
 		QTimer * timer             = nullptr;
+		bool single_shot           = false;
 		Qt::TimerType type         = Qt::CoarseTimer;
 	};