8a8abd6c76
Moved timer from MouseEventSpy to EnergySaver. Connected MouseEventSpy and MusicController to EnergySaver.
70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
#include "MouseEventSpy.h"
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#include <QGuiApplication>
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#include <QDebug>
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MouseEventSpy::MouseEventSpy(QObject *parent) : QObject(parent)
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{
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}
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/**
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* @brief Create instance if necessary.
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*
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* If no instance has been created yet, create new instance and install it as event filter
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* in QGuiApplication.
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*
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* @see MouseEventSpy::instance()
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*/
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void MouseEventSpy::init()
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{
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instance();
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}
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/**
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* @brief Implements the singleton pattern.
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* @return Instance
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*
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* If no instance has been created yet, create new instance and install it as event filter
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* in QGuiApplication.
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*/
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MouseEventSpy* MouseEventSpy::instance()
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{
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static MouseEventSpy* inst;
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if (inst == nullptr)
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{
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inst = new MouseEventSpy();
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QGuiApplication* app = qGuiApp;
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app->installEventFilter(inst);
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}
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return inst;
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}
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/**
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* @brief Expand QObject::eventFilter to react to MouseEvents.
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*
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* Restart timer each time a mouse event is detected.
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*/
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bool MouseEventSpy::eventFilter(QObject* watched, QEvent* event)
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{
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QEvent::Type t = event->type();
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if (isMouseEvent(t)
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&& event->spontaneous() // Take only mouse events from outside of Qt
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)
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{
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emit mouseEventDetected();
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}
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return QObject::eventFilter(watched, event);
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}
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/**
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* @brief Checks whether the event type is a mouse event.
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* @param t Event type
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* @return Returns whether the event type is a mouse event.
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*/
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bool MouseEventSpy::isMouseEvent(QEvent::Type t)
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{
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return (t == QEvent::MouseButtonDblClick
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|| t == QEvent::MouseButtonPress
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|| t == QEvent::MouseButtonRelease
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|| t == QEvent::MouseMove);
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}
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