#ifndef MASKMANAGER_H
#define MASKMANAGER_H

#include <QWidget>
#include <QSet>

class MaskManager : public QObject
{
    Q_OBJECT

public:
    //初始化时强制关联窗口
    static void initialize(QWidget* mainWindow);
    static MaskManager* instance();

    void showMask(QWidget* requester);
    void hideMask(QWidget* requester);

protected:
    bool eventFilter(QObject* obj, QEvent* event) override;

private:
    explicit MaskManager(QWidget* mainWindow);
    static MaskManager* m_instance;
    QWidget* m_mainWindow;
    QWidget* m_maskLayer;
    QSet<QWidget*> m_activeRequests;
};

#endif //MASKMANAGER_H