Long live Qt!

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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 PLUGINMANAGER_H
+#define PLUGINMANAGER_H
+
+#include "shared_global_p.h"
+#include "shared_enums_p.h"
+
+#include <QtCore/QSharedDataPointer>
+#include <QtCore/QMap>
+#include <QtCore/QPair>
+#include <QtCore/QStringList>
+
+QT_BEGIN_NAMESPACE
+
+class QDesignerFormEditorInterface;
+class QDesignerCustomWidgetInterface;
+class QDesignerPluginManagerPrivate;
+
+class QDesignerCustomWidgetSharedData;
+
+/* Information contained in the Dom XML of a custom widget. */
+class QDESIGNER_SHARED_EXPORT QDesignerCustomWidgetData {
+public:
+    // StringPropertyType: validation mode and translatable flag.
+    typedef QPair<qdesigner_internal::TextPropertyValidationMode, bool> StringPropertyType;
+
+    explicit QDesignerCustomWidgetData(const QString &pluginPath = QString());
+
+    enum ParseResult { ParseOk, ParseWarning, ParseError };
+    ParseResult parseXml(const QString &xml, const QString &name, QString *errorMessage);
+
+    QDesignerCustomWidgetData(const QDesignerCustomWidgetData&);
+    QDesignerCustomWidgetData& operator=(const QDesignerCustomWidgetData&);
+    ~QDesignerCustomWidgetData();
+
+    bool isNull() const;
+
+    QString pluginPath() const;
+
+    // Data as parsed from the widget's domXML().
+    QString xmlClassName() const;
+    // Optional. The language the plugin is supposed to be used with.
+    QString xmlLanguage() const;
+    // Optional. method used to add pages to a container with a container extension
+    QString xmlAddPageMethod() const;
+    // Optional. Base class
+    QString xmlExtends() const;
+    // Optional. The name to be used in the widget box.
+    QString xmlDisplayName() const;
+    // Type of a string property
+    bool xmlStringPropertyType(const QString &name, StringPropertyType *type) const;
+
+private:
+    QSharedDataPointer<QDesignerCustomWidgetSharedData> m_d;
+};
+
+class QDESIGNER_SHARED_EXPORT QDesignerPluginManager: public QObject
+{
+    Q_OBJECT
+public:
+    typedef QList<QDesignerCustomWidgetInterface*> CustomWidgetList;
+
+    explicit QDesignerPluginManager(QDesignerFormEditorInterface *core);
+    virtual ~QDesignerPluginManager();
+
+    QDesignerFormEditorInterface *core() const;
+
+    QObject *instance(const QString &plugin) const;
+
+    QStringList registeredPlugins() const;
+
+    QStringList findPlugins(const QString &path);
+
+    QStringList pluginPaths() const;
+    void setPluginPaths(const QStringList &plugin_paths);
+
+    QStringList disabledPlugins() const;
+    void setDisabledPlugins(const QStringList &disabled_plugins);
+
+    QStringList failedPlugins() const;
+    QString failureReason(const QString &pluginName) const;
+
+    QObjectList instances() const;
+
+    CustomWidgetList registeredCustomWidgets() const;
+    QDesignerCustomWidgetData customWidgetData(QDesignerCustomWidgetInterface *w) const;
+    QDesignerCustomWidgetData customWidgetData(const QString &className) const;
+
+    bool registerNewPlugins();
+
+public slots:
+    bool syncSettings();
+    void ensureInitialized();
+
+private:
+    void updateRegisteredPlugins();
+    void registerPath(const QString &path);
+    void registerPlugin(const QString &plugin);
+
+private:
+    static QStringList defaultPluginPaths();
+
+    QDesignerPluginManagerPrivate *m_d;
+};
+
+QT_END_NAMESPACE
+
+#endif // PLUGINMANAGER_H