57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
|
#include "maskManager.h"
|
|||
|
|
#include <QEvent>
|
|||
|
|
|
|||
|
|
MaskManager* MaskManager::m_instance = nullptr;
|
|||
|
|
|
|||
|
|
void MaskManager::initialize(QWidget* mainWindow)
|
|||
|
|
{
|
|||
|
|
if(!m_instance)
|
|||
|
|
m_instance = new MaskManager(mainWindow);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
MaskManager* MaskManager::instance()
|
|||
|
|
{
|
|||
|
|
Q_ASSERT(m_instance);
|
|||
|
|
return m_instance;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
MaskManager::MaskManager(QWidget* mainWindow)
|
|||
|
|
: QObject(mainWindow)
|
|||
|
|
, m_mainWindow(mainWindow)
|
|||
|
|
{
|
|||
|
|
m_maskLayer = new QWidget(m_mainWindow);
|
|||
|
|
//m_maskLayer->setAttribute(Qt::WA_TransparentForMouseEvents, true);
|
|||
|
|
m_maskLayer->setStyleSheet("background:rgba(112,128,144,180);");
|
|||
|
|
m_maskLayer->hide();
|
|||
|
|
|
|||
|
|
m_mainWindow->installEventFilter(this); //在Qt中，时间过滤会按照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
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
bool MaskManager::eventFilter(QObject* obj, QEvent* event)
|
|||
|
|
{
|
|||
|
|
if(obj == m_mainWindow && event->type() == QEvent::Resize)
|
|||
|
|
{
|
|||
|
|
if(m_maskLayer && m_maskLayer->isVisible())
|
|||
|
|
m_maskLayer->setGeometry(m_mainWindow->rect());
|
|||
|
|
}
|
|||
|
|
return QObject::eventFilter(obj, event);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void MaskManager::showMask(QWidget* requseter)
|
|||
|
|
{
|
|||
|
|
if(m_activeRequsets.isEmpty())
|
|||
|
|
{
|
|||
|
|
m_maskLayer->setGeometry(m_mainWindow->rect());
|
|||
|
|
//m_maskLayer->raise(); //显示在最上层，后续打开的同级子窗口依然在其之上
|
|||
|
|
m_maskLayer->show();
|
|||
|
|
}
|
|||
|
|
m_activeRequsets.insert(requseter);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void MaskManager::hideMask(QWidget* requester)
|
|||
|
|
{
|
|||
|
|
m_activeRequsets.remove(requester);
|
|||
|
|
if(m_activeRequsets.isEmpty())
|
|||
|
|
m_maskLayer->hide();
|
|||
|
|
}
|