Long live Qt 4.5!

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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the Qt Designer of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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>
+
+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;
+
+    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;
+
+    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