CTK/Libs/Scripting/Python/Widgets/ctkPythonShell.h

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

  Library:   CTK

  Copyright (c) Kitware Inc. 
  All rights reserved.
  Distributed under a BSD License. See LICENSE.txt file.

  This software is distributed "AS IS" WITHOUT ANY WARRANTY; without even
  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the above copyright notice for more information.

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

   Program: ParaView
   Module:    $RCSfile$

   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
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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=========================================================================*/

#ifndef __ctkPythonShell_h
#define __ctkPythonShell_h

// Qt includes
#include <QWidget>

// CTK includes
#include "CTKScriptingPythonWidgetsExport.h"

/**
  Qt widget that provides an interactive "shell" interface to an embedded Python interpreter.
  You can put an instance of ctkPythonShell in a dialog or a window, and the user will be able
  to enter Python commands and see their output, while the UI is still responsive.
  
  \sa pqConsoleWidget, pqPythonDialog
*/  

class ctkAbstractPythonManager;

class CTK_SCRIPTING_PYTHON_WIDGETS_EXPORT ctkPythonShell :
  public QWidget
{
  Q_OBJECT
  
public:
  typedef QWidget Superclass; 
  ctkPythonShell(ctkAbstractPythonManager* pythonManager, QWidget* _parent = 0);
  ~ctkPythonShell();


  /// Initializes the interpretor. If an interpretor is already setup (by an
  /// earlier call to this method), it will be destroyed.
//   void initializeInterpretor(int argc, char* argv[]);
//   void initializeInterpretor();

  /// Prints some text on the shell.
  void printMessage(const QString&);

  /// Calls MakeCurrent in the internal vtkPVPythonInteractiveInterpretor instance
//   void makeCurrent();

  /// Calls ReleaseControl in the internal vtkPVPythonInteractiveInterpretor instance
//   void releaseControl();

  /// Given a python variable name, lookup its attributes and return them in a
  /// string list.
  QStringList getPythonAttributes(const QString& pythonVariableName);

signals:
  void executing(bool);

public slots:
  void clear();
  void executeScript(const QString&);

protected slots:
  void printStderr(const QString&);
  void printStdout(const QString&);

  void onExecuteCommand(const QString&);

private:
  ctkPythonShell(const ctkPythonShell&);
  ctkPythonShell& operator=(const ctkPythonShell&);

  void promptForInput();
  void internalExecuteCommand(const QString&);

  struct pqImplementation;
  pqImplementation* const Implementation;
};

#endif // !__ctkPythonShell_h