/****************************************************************************

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** This file contains pre-release code and may not be distributed.

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** contained in the Technology Preview License Agreement accompanying

** this package.

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****************************************************************************/

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of Qt Designer.  This header

// file may change from version to version without notice, or even be removed.

//

// We mean it.

//

#ifndef QTRESOURCEMODEL_H

#define QTRESOURCEMODEL_H

#include "shared_global_p.h"

#include <QtCore/QMap>

#include <QtCore/QObject>

#include <QtCore/QScopedPointer>

QT_BEGIN_NAMESPACE

class QtResourceModel;

class QDESIGNER_SHARED_EXPORT QtResourceSet // one instance per one form

{

public:

    QStringList activeQrcPaths() const;

    // activateQrcPaths(): if this QtResourceSet is active it emits resourceSetActivated();

    // otherwise only in case if active QtResource set contains one of

    // paths which was marked as modified by this resource set, the signal

    // is emitted (with reload = true);

    // If new path appears on the list it is automatically added to

    // loaded list of QtResourceModel. In addition it is marked as modified in case

    // QtResourceModel didn't contain the path.

    // If some path is removed from that list (and is not used in any other

    // resource set) it is automatically unloaded. The removed file can also be

    // marked as modified (later when another resource set which contains

    // removed path is activated will be reloaded)

    void activateQrcPaths(const QStringList &paths, int *errorCount = 0, QString *errorMessages = 0);

    bool isModified(const QString &path) const; // for all paths in resource model (redundant here, maybe it should be removed from here)

    void setModified(const QString &path);      // for all paths in resource model (redundant here, maybe it should be removed from here)

private:

    QtResourceSet();

    QtResourceSet(QtResourceModel *model);

    ~QtResourceSet();

    friend class QtResourceModel;

    QScopedPointer<class QtResourceSetPrivate> d_ptr;

    Q_DECLARE_PRIVATE(QtResourceSet)

    Q_DISABLE_COPY(QtResourceSet)

};

class QDESIGNER_SHARED_EXPORT QtResourceModel : public QObject // one instance per whole designer

{

    Q_OBJECT

public:

    QtResourceModel(QObject *parent = 0);

    ~QtResourceModel();

    QStringList loadedQrcFiles() const;

    bool isModified(const QString &path) const; // only for paths which are on loadedQrcFiles() list

    void setModified(const QString &path);      // only for paths which are on loadedQrcPaths() list

    QList<QtResourceSet *> resourceSets() const;

    QtResourceSet *currentResourceSet() const;

    void setCurrentResourceSet(QtResourceSet *resourceSet, int *errorCount = 0, QString *errorMessages = 0);

    QtResourceSet *addResourceSet(const QStringList &paths);

    void removeResourceSet(QtResourceSet *resourceSet);

    void reload(const QString &path, int *errorCount = 0, QString *errorMessages = 0);

    void reload(int *errorCount = 0, QString *errorMessages = 0);

    // Contents of the current resource set (content file to qrc path)

    QMap<QString, QString> contents() const;

    // Find the qrc file belonging to the contained file (from current resource set)

    QString qrcPath(const QString &file) const;

    void setWatcherEnabled(bool enable);

    bool isWatcherEnabled() const;

    void setWatcherEnabled(const QString &path, bool enable);

    bool isWatcherEnabled(const QString &path);

signals:

    void resourceSetActivated(QtResourceSet *resourceSet, bool resourceSetChanged); // resourceSetChanged since last time it was activated!

    void qrcFileModifiedExternally(const QString &path);

private:

    friend class QtResourceSet;

    QScopedPointer<class QtResourceModelPrivate> d_ptr;

    Q_DECLARE_PRIVATE(QtResourceModel)

    Q_DISABLE_COPY(QtResourceModel)

    Q_PRIVATE_SLOT(d_func(), void slotFileChanged(const QString &))

};

QT_END_NAMESPACE

#endif