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 /* This file is part of the KDE project
    Copyright (C) 2010 KO GmbH <ben.martin@kogmbh.com>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
 */
 
 #ifndef __koDocumentRdfEditWidget_h__
 #define __koDocumentRdfEditWidget_h__
 
 #include "kordf_export.h"
 #include "RdfForward.h"
 // Calligra
 #include <KoPageWidgetItem.h>
 // Qt
 #include <QWidget>
 
 class KoDocumentRdf;
 class KoSemanticStylesheet;
 class QComboBox;
 
 /**
  * @short A widget to let the user view and edit the Rdf for with the document
  * @author Ben Martin <ben.martin@kogmbh.com>
  * @see KoDocumentRdf
  *
  * This is initially used by the KoDocumentInfoDlg class to add a new page
  * that shows you and editable interface for your Rdf. The class was kept
  * as its own QWidget so that it can be moved to other dialogs and or shown
  * in many places.
  *
  * The widget lets the user edit Rdf that is stored both inline in content.xml
  * as well as from manifest.rdf and other external Rdf files from the OASIS
  * document.
  *
  */
 class KORDF_EXPORT KoDocumentRdfEditWidget : public QWidget, public KoPageWidgetItem
 {
     Q_OBJECT
 public:
 
     /**
      * The constructor
      * @param docRdf a pointer to the KoDocumentRdf to show/edit
      */
     explicit KoDocumentRdfEditWidget(KoDocumentRdf *docRdf);
 
     /** The destructor */
     virtual ~KoDocumentRdfEditWidget();
 
     /** Add this widget to a user interface where you want Rdf editing */
     QWidget *widget();
 
     bool shouldDialogCloseBeVetoed();
 
     /** OK button in dialog, if this returns false then do not close the dialog */
     void apply();
 
     QString name() const;
     QString iconName() const;
 
 public Q_SLOTS:
 
     /**
      * Create a new triple in the model and UI in the Triples page.
      */
     void addTriple();
 
     /**
      * copy the triples which are currently selected in the Triples
      * page. new triples will have a unique identifier appended to
      * their object to avoid attempting to insert the same
      * subj,pred,obj twice.
      */
     void copyTriples();
 
     /**
      * Delete the selected triples in the Triples page
      */
     void deleteTriples();
 
     /**
      * Create a new namespace
      */
     void addNamespace();
 
     /**
      * Delete the selected namespaces
      */
     void deleteNamespace();
 
     /**
      * Execute the SPARQL query the user has provided.
      *
      * query is taken from m_ui->m_sparqlQuery
      * results are added to m_ui->m_sparqlResultView
      */
     void sparqlExecute();
 
 private Q_SLOTS:
 
     /**
      * This methods set the default stylesheet to the
      * user selection for each type of KoRdfSemanticItem.
      */
     void onDefaultSheetButtonClicked();
     void onDefaultAllSheetButtonClicked();
 
     /**
      * Show a context menu for the semantic treeview
      */
     void showSemanticViewContextMenu(const QPoint &at);
 
     /**
      * The user edited a semantic item, update the view.
      */
     void semanticObjectUpdated(hKoRdfBasicSemanticItem item);
 
 private:
 
     hKoSemanticStylesheet stylesheetFromComboBox(QComboBox *w) const;
     void applyStylesheetFromComboBox(QComboBox *comboBox) const;
 
 private:
     class KoDocumentRdfEditWidgetPrivate;
     KoDocumentRdfEditWidgetPrivate *const d;
 
 };
 
 #endif