/*=========================================================================                                                                               
  Program:   bbtk
  Module:    $RCSfile: bbtkWidgetBlackBox.txx,v $
  Language:  C++
  Date:      $Date: 2009/04/08 07:56:11 $
  Version:   $Revision: 1.1 $
=========================================================================*/

/* ---------------------------------------------------------------------

* Copyright (c) CREATIS-LRMN (Centre de Recherche en Imagerie Medicale)
* Authors : Eduardo Davila, Laurent Guigues, Jean-Pierre Roux
*
*  This software is governed by the CeCILL-B license under French law and 
*  abiding by the rules of distribution of free software. You can  use, 
*  modify and/ or redistribute the software under the terms of the CeCILL-B 
*  license as circulated by CEA, CNRS and INRIA at the following URL 
*  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html 
*  or in the file LICENSE.txt.
*
*  As a counterpart to the access to the source code and  rights to copy,
*  modify and redistribute granted by the license, users are provided only
*  with a limited warranty  and the software's author,  the holder of the
*  economic rights,  and the successive licensors  have only  limited
*  liability. 
*
*  The fact that you are presently reading this means that you have had
*  knowledge of the CeCILL-B license and that you accept its terms.
* ------------------------------------------------------------------------ */                                                                         
/**
 *  \file 
 *  \brief 
 */


 
#include "bbtkWidgetBlackBoxWindow.h"
#include "bbtkBlackBoxOutputConnector.h"


namespace bbtk
{

  //=========================================================================
  // WidgetBlackBox
  //=========================================================================

  //=========================================================================
  //=========================================================================
  //=========================================================================
  //=========================================================================
  BBTK_BLACK_BOX_TEMPLATE_IMPLEMENTATION(WidgetBlackBox,AtomicBlackBox);
  //=========================================================================
  
//=========================================================================
  template <class T>  
  void WidgetBlackBox<T>::bbUserConstructor()
  {
    bbtkDebugMessage("widget",9,"WidgetBlackBox::bbUserConstructor()"<<std::endl);
    bbInitAttributes();
  }
  //=========================================================================

  //=========================================================================
  template <class T>  
  void WidgetBlackBox<T>::bbUserCopyConstructor(bbtk::BlackBox::Pointer)
  {
    bbtkDebugMessage("widget",9,"WidgetBlackBox::bbUserCopyConstructor()"
		     <<std::endl);
    bbInitAttributes();
  }
  //=========================================================================


  //=========================================================================
  template <class T>  
  void WidgetBlackBox<T>::bbUserDestructor()
  {
    bbtkDebugMessage("widget",9,"==> WidgetBlackBox::bbUserDestructor() ["<<bbGetFullName()<<"]"<<std::endl);
    if (bbGetWindow()) {
      bbGetWindow()->bbClose();
      bbSetWindow(0);
    }
    bbtkDebugMessage("widget",9,"<== WidgetBlackBox::bbUserDestructor() ["<<bbGetFullName()<<"]"<<std::endl);
  }
  //=========================================================================
  


  //=========================================================================
  /**
   * \brief Initialize the attributes of the class
   *
   */
  template <class T>  
  void WidgetBlackBox<T>::bbInitAttributes()
  {
    bbmWindow = 0;
    bbSetInputWinTitle(bbGetName());
    bbSetInputWinWidth(800);
    bbSetInputWinHeight(800);
    bbSetInputWinDialog(false);
    bbSetOutputWidget(0);
  }
  //=========================================================================


  //=========================================================================
  template <class T>  
  void WidgetBlackBox<T>::bbProcess()
  { 
    // TODO : update the window size and title 
    this->bbUserProcess(); 
  }
  //=========================================================================

  //=========================================================================
  template <class T>  
  void WidgetBlackBox<T>::bbCreateWindow()
  { 


    // If output 'Widget' not connected then
    // it is a top level Widget have to create and show the Window
    if ( ! bbIsOutputWidgetConnected() )
      {
	// create the Window if does not exist
	if ( bbGetWindow() == 0)
	  {
	    bbtkDebugMessage("widget",2,
			     "-> Creating the window"
			     <<std::endl);
	    //	    this->InitWindowManagerIfNeeded();
	    // If is a Dialog requested
	    if ( bbGetInputWinDialog() )
	      {
		bbtkDebugMessage("process",2,
				 "   Input WinDialog set to true : creating a Dialog"
				 <<std::endl);
		this->bbCreateDialogWindow();
	      }
	    // Input WinDialog set to false : creating a Frame
	    else 
	      {
		bbtkDebugMessage("process",2,
				 "   Input WinDialog set to false : creating a Frame"
				 <<std::endl);
		this->bbCreateFrameWindow();
	      }
	  }
	// Show the window
	if ( !bbGetWindow() )
	  {
	    bbtkInternalError("Need to show the Window of widget "<<bbGetName()
			      <<" however was not created by apropriate cb");
	  }
	bbtkDebugMessage("widget",2,
			 "-> Showing the window"
			 <<std::endl);
	bbGetWindow()->bbShow(); 
      }		  
    //   
  }
  //=========================================================================
  

  //==================================================================
  template <class T>  
  typename WidgetBlackBox<T>::WidgetPointer  
  WidgetBlackBox<T>::bbCreateWidgetOfInput
  (const std::string& in, WidgetBlackBox<T>::WidgetPointer parent)
  {
    Widget* w = 0;
    // If input is connected 
    BlackBoxInputConnector* c = bbGetInputConnectorMap().find(in)->second ;
    if ( c->IsConnected() )			
      {
	// Get black box from 
	BlackBox::Pointer from = 
	  c->GetConnection()->GetBlackBoxFrom();
	// Cast it into a WidgetBlackBox
	typename WidgetBlackBox<T>::Pointer wfrom 
	  = boost::dynamic_pointer_cast<WidgetBlackBox<T> >(from);
	// Call bbCreateWidget
	wfrom->bbUserCreateWidget(parent);
	// Get the widget created
	w = wfrom->bbGetOutputWidget();
      }
    return w;
  }
  //==================================================================

  //=========================================================================
  template <class T>  
  bool WidgetBlackBox<T>::bbIsOutputWidgetConnected()
  {
    return ((*bbGetOutputConnectorMap().find("Widget")).second->GetConnectionVector().size() != 0 );
  }
  //==================================================================

 //==================================================================
  template <class T>  
   void WidgetBlackBox<T>::bbShowWindow()
  {
    bbtkDebugMessageInc("widget",1,"=> WidgetBlackBox::bbShowWindow() ["
			<<bbGetFullName()<<"]"<<std::endl);

    if (bbGetWindow()!=0) bbGetWindow()->bbShow();

    bbtkDebugMessageDec("widget",2,"<= WidgetBlackBox::bbShowWindow() ["
			<<bbGetFullName()<<"]"<<std::endl);
  }
  //==================================================================

  //==================================================================
  template <class T>  
   void WidgetBlackBox<T>::bbHideWindow()
  {
    bbtkDebugMessageInc("widget",1,"=> WidgetBlackBox::bbHideWindow() ["
			<<bbGetFullName()<<"]"<<std::endl);

    if (bbGetWindow()!=0) bbGetWindow()->bbHide();

    bbtkDebugMessageDec("widget",2,"<= WidgetBlackBox::bbHideWindow() ["
			<<bbGetFullName()<<"]"<<std::endl);
  }
  //==================================================================


  //==================================================================
  template <class T>  
  void WidgetBlackBox<T>::bbCloseWindow()
  {
    bbtkDebugMessageInc("widget",1,"=> WidgetBlackBox::bbCloseWindow() ["
			<<bbGetFullName()<<"]"<<std::endl);

    if (bbGetWindow()!=0) bbGetWindow()->bbClose();

    bbtkDebugMessageDec("widget",2,"<= WidgetBlackBox::bbCloseWindow() ["
			<<bbGetFullName()<<"]"<<std::endl);
  }
  //==================================================================

  //==================================================================
  template <class T>  
  typename WidgetBlackBox<T>::Window* 
  WidgetBlackBox<T>::bbGetContainingWindow()
  {
    if (bbGetWindow()!=0) return bbGetWindow();
    BlackBox::OutputConnectorMapType::const_iterator i 
      = bbGetOutputConnectorMap().find("Widget");
    if ( i->second->GetConnectionVector().size() != 0 ) 
      {
	return boost::static_pointer_cast<WidgetBlackBox>
	  (i->second->GetConnectionVector().front() //.lock()
	   ->GetBlackBoxTo())->bbGetContainingWindow();
      }
    return 0;
  }
  //==================================================================


  //==================================================================
  template <class T>  
  bool WidgetBlackBox<T>::bbIsShown()
  {
    if (bbGetContainingWindow()!=0)
      return bbGetContainingWindow()->bbIsShown();
    return false;
  }
  //==================================================================


}//namespace bbtk