96 lines
2.9 KiB
C++
96 lines
2.9 KiB
C++
#include "maskManager.h"
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#include "maskLayer.h"
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#include <QEvent>
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#include <QApplication>
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#include <QDialog>
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#include <QMetaMethod>
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MaskManager* MaskManager::m_instance = nullptr;
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void MaskManager::initialize(QWidget* mainWindow)
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{
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if(!m_instance)
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m_instance = new MaskManager(mainWindow);
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}
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MaskManager* MaskManager::instance()
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{
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Q_ASSERT(m_instance);
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return m_instance;
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}
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MaskManager::MaskManager(QWidget* mainWindow)
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: QObject(mainWindow)
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, m_mainWindow(mainWindow)
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{
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m_maskLayer = new MaskLayer(m_mainWindow);
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// m_maskLayer->setStyleSheet("background:rgba(112,128,144,180);");
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// m_maskLayer->hide();
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m_mainWindow->installEventFilter(this); //在Qt中，事件过滤会按照install的顺序反向执行，过程中，对于同一类型事件，任何一个过滤器返回true，表示事件被处理，后续过滤器和事件函数不会再被调用
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}
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bool MaskManager::eventFilter(QObject* obj, QEvent* event)
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{
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if(obj == m_mainWindow && event->type() == QEvent::Resize)
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{
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if(m_maskLayer && m_maskLayer->isVisible())
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m_maskLayer->setGeometry(m_mainWindow->rect());
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}
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return QObject::eventFilter(obj, event);
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}
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void MaskManager::showMask(QWidget* requester)
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{
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if(m_activeRequests.isEmpty())
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{
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m_maskLayer->setGeometry(m_mainWindow->rect());
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m_maskLayer->show();
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// foreach (QObject* child, m_mainWindow->children())
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// {
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// if(qobject_cast<QDialog*>(child) || qobject_cast<QWidget*>(child))
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// qDebug() << child->objectName();
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// }
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}
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else
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{
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QWidget* widget = m_activeRequests.last();
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if(!widget->windowFlags().testFlag(Qt::Dialog))
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{
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const QMetaObject* meta = widget->metaObject();
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int methodIndex = meta->indexOfMethod("showMask()");
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if(methodIndex != -1)
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{
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//QMetaMethod method = meta->method(methodIndex);
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QMetaObject::invokeMethod(widget, "showMask", Qt::AutoConnection);
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}
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}
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else
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widget->lower();
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}
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m_activeRequests.appendUnique(requester);
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//qDebug() << "append requester: " << requester->objectName() << "requester count: " << m_activeRequests.size();
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}
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void MaskManager::hideMask(QWidget* requester)
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{
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m_activeRequests.remove(requester);
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if(m_activeRequests.isEmpty())
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m_maskLayer->hide();
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else
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{
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QWidget* widget = m_activeRequests.last();
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if(!widget->windowFlags().testFlag(Qt::Dialog))
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{
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const QMetaObject* meta = widget->metaObject();
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int methodIndex = meta->indexOfMethod("hideMask()");
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if(methodIndex != -1)
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QMetaObject::invokeMethod(widget, "hideMask", Qt::AutoConnection);
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}
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else
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widget->raise();
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}
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//qDebug() << "remove requester: " << requester->objectName() << "requester count: " << m_activeRequests.size();
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}
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