text: /****************************************************************************
  **
  ** Copyright (C) 2015 The Qt Company Ltd.
  ** Contact: http://www.qt.io/licensing/
  **
  ** This file is part of the Qt Designer of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:LGPL21$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and The Qt Company. For licensing terms
  ** and conditions see http://www.qt.io/terms-conditions. For further
  ** information use the contact form at http://www.qt.io/contact-us.
  **
  ** 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 or version 3 as published by the Free
  ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
  ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
  ** following information to ensure the GNU Lesser General Public License
  ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
  ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
  **
  ** As a special exception, The Qt Company gives you certain additional
  ** rights. These rights are described in The Qt Company LGPL Exception
  ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/
  
  //
  //  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 QDESIGNER_ABTRACT_LANGUAGE_H
  #define QDESIGNER_ABTRACT_LANGUAGE_H
  
  #include <QtDesigner/extension.h>
  
  QT_BEGIN_NAMESPACE
  
  class QDialog;
  class QWidget;
  class QDesignerFormWindowInterface;
  class QDesignerFormEditorInterface;
  class QDesignerResourceBrowserInterface;
  
  class QDesignerLanguageExtension
  {
  public:
      virtual ~QDesignerLanguageExtension() {}
  
      /*!
          Returns the name to be matched against the "language" attribute of the <ui> element.
  
          \since 5.0
       */
  
      virtual QString name() const = 0;
  
      virtual QDialog *createFormWindowSettingsDialog(QDesignerFormWindowInterface *formWindow, QWidget *parentWidget) = 0;
      virtual QDesignerResourceBrowserInterface *createResourceBrowser(QWidget *parentWidget) = 0;
  
      virtual QDialog *createPromotionDialog(QDesignerFormEditorInterface *formEditor, QWidget *parentWidget = Q_NULLPTR) = 0;
  
      virtual QDialog *createPromotionDialog(QDesignerFormEditorInterface *formEditor,
                                             const QString &promotableWidgetClassName,
                                             QString *promoteToClassName,
                                             QWidget *parentWidget = Q_NULLPTR) = 0;
  
      virtual bool isLanguageResource(const QString &path) const = 0;
  
      virtual QString classNameOf(QObject *object) const = 0;
  
      virtual bool signalMatchesSlot(const QString &signal, const QString &slot) const = 0;
  
      virtual QString widgetBoxContents() const = 0;
  
      virtual QString uiExtension() const = 0;
  };
  
  Q_DECLARE_EXTENSION_INTERFACE(QDesignerLanguageExtension, "org.qt-project.Qt.Designer.Language.3")
  
  QT_END_NAMESPACE
  
  #endif // QDESIGNER_ABTRACT_LANGUAGE_H
  