File indexing completed on 2024-05-19 05:35:19

 //////////////////////////////////////////////////////////////////////////////
 // oxygenbusyindicatorengine.cpp
 // handle progress bar busy indicator
 // -------------------
 //
 // SPDX-FileCopyrightText: 2009 Hugo Pereira Da Costa <hugo.pereira@free.fr>
 //
 // SPDX-License-Identifier: MIT
 //////////////////////////////////////////////////////////////////////////////
 
 #include "oxygenbusyindicatorengine.h"
 
 #include <QVariant>
 
 namespace Oxygen
 {
 //_______________________________________________
 BusyIndicatorEngine::BusyIndicatorEngine(QObject *object)
     : BaseEngine(object)
 {
 }
 
 //_______________________________________________
 bool BusyIndicatorEngine::registerWidget(QObject *object)
 {
     // check widget validity
     if (!object)
         return false;
 
     // create new data class
     if (!_data.contains(object)) {
         _data.insert(object, new BusyIndicatorData(this));
 
         // connect destruction signal
         connect(object, SIGNAL(destroyed(QObject *)), this, SLOT(unregisterWidget(QObject *)), Qt::UniqueConnection);
     }
 
     return true;
 }
 
 //____________________________________________________________
 bool BusyIndicatorEngine::isAnimated(const QObject *object)
 {
     DataMap<BusyIndicatorData>::Value data(BusyIndicatorEngine::data(object));
     return data && data.data()->isAnimated();
 }
 
 //____________________________________________________________
 void BusyIndicatorEngine::setDuration(int value)
 {
     if (duration() == value)
         return;
     BaseEngine::setDuration(value);
 
     // restart timer with specified time
     if (_animation) {
         _animation.data()->setDuration(value * 100);
     }
 }
 
 //____________________________________________________________
 void BusyIndicatorEngine::setAnimated(const QObject *object, bool value)
 {
     DataMap<BusyIndicatorData>::Value data(BusyIndicatorEngine::data(object));
     if (data) {
         // update data
         data.data()->setAnimated(value);
 
         // start timer if needed
         if (value) {
             if (!_animation) {
                 // create animation if not already there
                 _animation = new Animation(duration(), this);
 
                 // setup
                 _animation.data()->setStartValue(0);
                 _animation.data()->setEndValue(1);
                 _animation.data()->setTargetObject(this);
                 _animation.data()->setPropertyName("value");
                 _animation.data()->setLoopCount(-1);
                 _animation.data()->setDuration(duration() * 100);
             }
 
             // start if  not already running
             if (!_animation.data()->isRunning()) {
                 _animation.data()->start();
             }
         }
     }
 
     return;
 }
 
 //____________________________________________________________
 DataMap<BusyIndicatorData>::Value BusyIndicatorEngine::data(const QObject *object)
 {
     return _data.find(object).data();
 }
 
 //_______________________________________________
 void BusyIndicatorEngine::setValue(qreal value)
 {
     // update
     _value = value;
 
     bool animated(false);
 
     // loop over objects in map
     for (DataMap<BusyIndicatorData>::iterator iter = _data.begin(); iter != _data.end(); ++iter) {
         if (iter.value().data()->isAnimated()) {
             // update animation flag
             animated = true;
 
             // emit update signal on object
             if (const_cast<QObject *>(iter.key())->inherits("QQuickStyleItem")) {
                 // QtQuickControls "rerender" method is updateItem
                 QMetaObject::invokeMethod(const_cast<QObject *>(iter.key()), "updateItem", Qt::QueuedConnection);
 
             } else {
                 QMetaObject::invokeMethod(const_cast<QObject *>(iter.key()), "update", Qt::QueuedConnection);
             }
         }
     }
 
     if (_animation && !animated) {
         _animation.data()->stop();
         _animation.data()->deleteLater();
         _animation.clear();
     }
 }
 
 //__________________________________________________________
 bool BusyIndicatorEngine::unregisterWidget(QObject *object)
 {
     const bool removed(_data.unregisterWidget(object));
     if (_animation && _data.isEmpty()) {
         _animation.data()->stop();
         _animation.data()->deleteLater();
         _animation.clear();
     }
 
     return removed;
 }
 }