dialogregistry.h

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#ifndef OPENSWMMVIS_UI_DIALOGS_DIALOGREGISTRY_H
#define OPENSWMMVIS_UI_DIALOGS_DIALOGREGISTRY_H
 
#include <QList>
#include <QObject>
#include <QPointer>
// Qt 6's QPointer<T> needs T complete wherever it is assigned or compared,
// and a forward declaration is not enough — same reasoning as the note in
// ui/panels/legenddock.h.
#include <QDialog>
 
class QEvent;
 
namespace openswmmvis::ui {
 
class DialogRegistry : public QObject
{
    Q_OBJECT
 
public:
    enum class StackingMode {
        NativeChildWindow,   
        QtRaiseOnActivate    
    };
    Q_ENUM(StackingMode)
 
    
    static DialogRegistry *instance();
 
    static StackingMode configuredStackingMode();
 
    StackingMode stackingMode() const { return mMode; }
    void setStackingMode(StackingMode mode);
 
    QList<QPointer<QDialog>> openDialogs() const;
 
    void raiseAllInOrder();
 
signals:
    void openDialogsChanged();
 
protected:
    bool eventFilter(QObject *watched, QEvent *event) override;
 
private:
    explicit DialogRegistry(QObject *parent = nullptr);
 
    static QDialog *trackableDialog(QObject *watched);
 
    void trackOrPromote(QDialog *dlg);
    void forget(QDialog *dlg);
    void scheduleRestack();
 
    QList<QPointer<QDialog>> mOrder;   
    StackingMode             mMode = StackingMode::NativeChildWindow;
    bool                     mRestackQueued = false;   
};
 
}   // namespace openswmmvis::ui
 
#endif   // OPENSWMMVIS_UI_DIALOGS_DIALOGREGISTRY_H