qt-creator/src/plugins/qt4projectmanager/directorywatcher.h

/***************************************************************************
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** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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** Contact:  Qt Software Information (qt-info@nokia.com)
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#ifndef DIRECTORYWATCHER_H
#define DIRECTORYWATCHER_H

#include <QtCore/QDateTime>
#include <QtCore/QHash>
#include <QtCore/QObject>
#include <QtCore/QStringList>

QT_BEGIN_NAMESPACE
class QTimer;
class QFileSystemWatcher;
QT_END_NAMESPACE

namespace Qt4ProjectManager {
namespace Internal {

class DirectoryWatcher : public QObject
{
    Q_DISABLE_COPY(DirectoryWatcher)
    Q_OBJECT
public:
    explicit DirectoryWatcher(QObject *parent = 0);
    virtual ~DirectoryWatcher();

    QStringList directories() const;
    void addDirectory(const QString &dir);
    void removeDirectory(const QString &dir);

    QStringList files() const;
    void addFile(const QString &filePath);
    void addFiles(const QStringList &filePaths);
    void removeFile(const QString &filePath);

signals:
    void directoryChanged(const QString &path);
    void fileChanged(const QString &path);

private slots:
    void slotDirectoryChanged(const QString &);
    void slotDelayedDirectoriesChanged();

private:
    void updateFileList(const QString &dir);

    static int m_objectCount;
    static QHash<QString,int> m_directoryCount;
    static QFileSystemWatcher *m_watcher;

    QTimer *m_timer;
    QStringList m_directories;
    QStringList m_pendingDirectories;

    typedef QHash<QString, QDateTime> FileModificationTimeMap;
    FileModificationTimeMap m_files;
};

} // namespace Internal
} // namespace Qt4ProjectManager

#endif // DIRECTORYWATCHER_H