pqPipelineModel.h

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/*=========================================================================

   Program: ParaView
   Module:    pqPipelineModel.h

   Copyright (c) 2005-2008 Sandia Corporation, Kitware Inc.
   All rights reserved.

   ParaView is a free software; you can redistribute it and/or modify it
   under the terms of the ParaView license version 1.2.

   See License_v1.2.txt for the full ParaView license.
   A copy of this license can be obtained by contacting
   Kitware Inc.
   28 Corporate Drive
   Clifton Park, NY 12065
   USA

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

=========================================================================*/
#ifndef pqPipelineModel_h
#define pqPipelineModel_h

#include "pqComponentsModule.h" // For export macro
#include "pqView.h"             // For View

#include <QAbstractItemModel>
#include <QMap>     // For PixmapMap
#include <QPointer> // For View

class ModifiedLiveInsituLink;
class QFont;
class QPixmap;
class QString;
class pqExtractor;
class pqPipelineModelDataItem;
class pqPipelineModelInternal;
class pqPipelineSource;
class pqServer;
class pqServerManagerModel;
class pqServerManagerModelItem;
class vtkSession;

class PQCOMPONENTS_EXPORT pqPipelineModel : public QAbstractItemModel
{
  Q_OBJECT;

public:
  enum ItemType
  {
    Invalid = -1,
    Server = 0,
    Proxy,
    Port,
    Extractor,
    Link
  };

  enum ItemRole
  {
    AnnotationFilterRole = 33,
    SessionFilterRole = 34
  };

public:
  pqPipelineModel(QObject* parent = 0);

  pqPipelineModel(const pqPipelineModel& other, QObject* parent = 0);

  pqPipelineModel(const pqServerManagerModel& other, QObject* parent = 0);

  ~pqPipelineModel() override;

  int rowCount(const QModelIndex& parent = QModelIndex()) const override;

  int columnCount(const QModelIndex& parent = QModelIndex()) const override;

  bool hasChildren(const QModelIndex& parent = QModelIndex()) const override;

  QModelIndex index(int row, int column, const QModelIndex& parent = QModelIndex()) const override;

  QModelIndex parent(const QModelIndex& index) const override;

  QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;

  bool setData(const QModelIndex& index, const QVariant& value, int role = Qt::EditRole) override;

  Qt::ItemFlags flags(const QModelIndex& index) const override;


  pqServerManagerModelItem* getItemFor(const QModelIndex&) const;

  QModelIndex getIndexFor(pqServerManagerModelItem* item) const;

  ItemType getTypeFor(const QModelIndex& index) const;

  bool isEditable() const { return this->Editable; }

  void setEditable(bool editable) { this->Editable = editable; }

  void setSelectable(const QModelIndex& index, bool selectable);

  bool isSelectable(const QModelIndex& index) const;

  void setSubtreeSelectable(pqServerManagerModelItem* item, bool selectable);

  QModelIndex getNextIndex(const QModelIndex index, const QModelIndex& root = QModelIndex()) const;

  pqView* view() const { return this->View; }

  void setModifiedFont(const QFont& font);

  void enableFilterAnnotationKey(const QString& expectedAnnotation);

  void disableFilterAnnotationKey();

  void setAnnotationFilterMatching(bool matching);

  void enableFilterSession(vtkSession* session);

  void disableFilterSession();

public Q_SLOTS:
  void addServer(pqServer* server);

  void removeServer(pqServer* server);

  void addSource(pqPipelineSource* source);

  void removeSource(pqPipelineSource* source);

  void addConnection(pqPipelineSource* source, pqPipelineSource* sink, int);

  void removeConnection(pqPipelineSource* source, pqPipelineSource* sink, int);


  void addConnection(pqServerManagerModelItem* source, pqExtractor* sink);
  void removeConnection(pqServerManagerModelItem* source, pqExtractor* sink);


  void addExtractor(pqExtractor*);
  void removeExtractor(pqExtractor*);

  void setView(pqView* module);

Q_SIGNALS:
  void firstChildAdded(const QModelIndex& index);

private Q_SLOTS:
  void onInsituConnectionInitiated(pqServer* server);

  void serverDataChanged();

  void updateVisibility(pqPipelineSource*, ItemType type = Proxy);

  void delayedUpdateVisibility(pqPipelineSource*);
  void delayedUpdateVisibilityTimeout();

  void updateData(pqServerManagerModelItem*, ItemType type = Proxy);
  void updateDataServer(pqServer* server);

private:
  friend class pqPipelineModelDataItem;

  // Add an item as a child under the parent at the given index.
  // Note that this method does not actually change the underlying
  // pqServerManagerModel, it merely signals that such an addition
  // has taken place.
  void addChild(pqPipelineModelDataItem* parent, pqPipelineModelDataItem* child);

  // Remove a child item from under the parent.
  // Note that this method does not actually change the underlying
  // pqServerManagerModel, it merely signals that such an addition
  // has taken place.
  void removeChildFromParent(pqPipelineModelDataItem* child);

  // Returns the pqPipelineModelDataItem for the given pqServerManagerModelItem.
  pqPipelineModelDataItem* getDataItem(pqServerManagerModelItem* item,
    pqPipelineModelDataItem* subtreeRoot, ItemType type = Invalid) const;

  // called by pqPipelineModelDataItem to indicate that the data for the item
  // may have changed.
  void itemDataChanged(pqPipelineModelDataItem*);
  void setSubtreeSelectable(pqPipelineModelDataItem* item, bool selectable);

  QModelIndex getIndex(pqPipelineModelDataItem* item) const;

  bool checkAndLoadPipelinePixmap(const QString& iconType);

private:
  pqPipelineModelInternal* Internal; 
  QMap<QString, QPixmap> PixmapMap;  
  QPointer<pqView> View;
  bool Editable;
  bool FilterAnnotationMatching;
  QString FilterRoleAnnotationKey;
  vtkSession* FilterRoleSession;
  ModifiedLiveInsituLink* LinkCallback;
  void constructor();

  friend class ModifiedLiveInsituLink;
};

#endif