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

  Library:   CTK

  Copyright (c) Kitware Inc.

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0.txt

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.

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

#ifndef __ctkDICOMQueryRetrieveWidget_h
#define __ctkDICOMQueryRetrieveWidget_h

#include "ctkDICOMWidgetsExport.h"

// Qt includes 
#include <QWidget>
#include <QItemSelection>
#include <QMap>
#include <QVariant>
#include <QString>

class ctkDICOMTableManager;
// CTK includes
#include <ctkDICOMDatabase.h>

class ctkDICOMQueryRetrieveWidgetPrivate;

/// \ingroup DICOM_Widgets
class CTK_DICOM_WIDGETS_EXPORT ctkDICOMQueryRetrieveWidget : public QWidget
{
Q_OBJECT;
Q_PROPERTY(ctkDICOMTableManager* dicomTableManager READ dicomTableManager)
public:
  typedef QWidget Superclass;
  explicit ctkDICOMQueryRetrieveWidget(QWidget* parent=0);
  virtual ~ctkDICOMQueryRetrieveWidget();
  QMap<QString,QVariant> getServerParameters();

  ctkDICOMTableManager* dicomTableManager();

  QSharedPointer<ctkDICOMDatabase> retrieveDatabase()const;

  /// enable or disable ctk progress bars
  void                   useProgressDialog(bool enable);

public Q_SLOTS:
  void setRetrieveDatabase(QSharedPointer<ctkDICOMDatabase> retrieveDatabase);
  void query();
  void retrieve();
  void cancel();

Q_SIGNALS:
  /// Signal emit when studies have been retrieved (user clicked on the
  /// "Retrieve" button) or when the widget is cancelled (user clicked on the
  /// "Cancel" button).
  void studiesRetrieved(QStringList);
  /// Signal to emit when cancel button pressed (after studiesRetrieved is emitted)
  void canceled();

protected Q_SLOTS:
  void onQueryProgressChanged(int value);
  void updateRetrieveProgress(int value);

protected:
  QScopedPointer<ctkDICOMQueryRetrieveWidgetPrivate> d_ptr;

private:
  Q_DECLARE_PRIVATE(ctkDICOMQueryRetrieveWidget);
  Q_DISABLE_COPY(ctkDICOMQueryRetrieveWidget);
};

#endif