SchemaModel.hxx

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// Copyright (C) 2006-2026  CEA, EDF
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
 
#ifndef _SCHEMAMODEL_HXX_
#define _SCHEMAMODEL_HXX_
 
#include <QAbstractItemModel>
#include <QItemSelection>
#include <QBrush>
#include "guiObservers.hxx"
#include <list>
 
namespace YACS
{
  namespace HMI
  {
    typedef enum
      {
        YLabel = 0,
        YType  = 1,
        YValue = 2,
        YState = 2,
      } columnId;
 
    class SchemaItem;
    class SchemaNodeItem;
    class SchemaComposedNodeItem;
    class SchemaDirTypesItem;
    class SchemaDirLinksItem;
    class SchemaDirContainersItem;
    class SchemaContainerItem;
 
    class SchemaModel: public QAbstractItemModel, public GuiObserver
    {
      Q_OBJECT
 
      friend class SchemaItem;
      friend class SchemaNodeItem;
      friend class SchemaComposedNodeItem;
      friend class SchemaDirTypesItem;
      friend class SchemaDirLinksItem;
      friend class SchemaDirContainersItem;
      friend class SchemaContainerItem;
      friend class SchemaComponentItem;
 
    public:
      SchemaModel(YACS::HMI::Subject *context,
                  QObject * parent = 0);
      virtual ~SchemaModel();
 
      virtual QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
      virtual QModelIndex parent(const QModelIndex &index) const;
      virtual int rowCount(const QModelIndex &parent = QModelIndex()) const;
      virtual int columnCount(const QModelIndex &parent = QModelIndex()) const;
      virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
      virtual QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole ) const;
 
      virtual bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
      virtual Qt::ItemFlags flags(const QModelIndex &index) const;
 
      virtual void update(GuiEvent event, int type, Subject* son);
      inline SchemaItem * getRootItem() {return _rootItem; };
      inline bool isEdition() {return _isEdition; };
      void setEdition(bool isEdition = true);
 
      const QBrush& stdBackBrush();
      const QBrush& editedBackBrush();
      const QBrush& emphasizeBackBrush();
 
      virtual QMimeData* mimeData(const QModelIndexList &indexes) const;
      virtual bool dropMimeData(const QMimeData* data, Qt::DropAction action,
                                int row, int column, const QModelIndex& parent);
      virtual Qt::DropActions supportedDropActions() const;
      virtual QStringList mimeTypes() const;
 
    public slots:
    void updateSelection(const QItemSelection &selected, const QItemSelection &deselected);
 
    signals:
    void signalSelection(const QModelIndex &index);
 
    protected:
      void setNewRoot(YACS::HMI::Subject *root);
 
      Subject *_context;
      Subject *_root;
      SchemaItem *_rootItem;
 
      QBrush _stdBackBrush;
      QBrush _editedBackBrush;
      QBrush _emphasizeBackBrush;
      bool _isEdition;
    };
 
  }
}
 
#endif