// -*- C++ -*-
//
// This file is part of the Coriolis Project.
// Copyright (C) Laboratoire LIP6 - Departement ASIM
// Universite Pierre et Marie Curie
//
// Main contributors :
//        Christophe Alexandre   <Christophe.Alexandre@lip6.fr>
//        Sophie Belloeil             <Sophie.Belloeil@lip6.fr>
//        Hugo Clément                   <Hugo.Clement@lip6.fr>
//        Jean-Paul Chaput           <Jean-Paul.Chaput@lip6.fr>
//        Damien Dupuis                 <Damien.Dupuis@lip6.fr>
//        Christian Masson           <Christian.Masson@lip6.fr>
//        Marek Sroka                     <Marek.Sroka@lip6.fr>
// 
// The  Coriolis Project  is  free software;  you  can redistribute it
// and/or modify it under the  terms of the GNU General Public License
// as published by  the Free Software Foundation; either  version 2 of
// the License, or (at your option) any later version.
// 
// The  Coriolis Project 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 General Public License for more details.
// 
// You should have  received a copy of the  GNU General Public License
// along with the Coriolis Project; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
//
// License-Tag
// Authors-Tag
// ===================================================================
//
// $Id$
//
// x-----------------------------------------------------------------x 
// |                                                                 |
// |                  H U R R I C A N E                              |
// |     V L S I   B a c k e n d   D a t a - B a s e                 |
// |                                                                 |
// |  Author      :                    Jean-Paul CHAPUT              |
// |  E-mail      :       Jean-Paul.Chaput@asim.lip6.fr              |
// | =============================================================== |
// |  C++ Module  :       "./ZoomCommand.cpp"                        |
// | *************************************************************** |
// |  U p d a t e s                                                  |
// |                                                                 |
// x-----------------------------------------------------------------x


# include <QMouseEvent>
# include <QKeyEvent>

# include <hurricane/viewer/CellWidget.h>
# include <hurricane/viewer/ZoomCommand.h>


namespace Hurricane {


// -------------------------------------------------------------------
// Class  :  "ZoomCommand".


  ZoomCommand::ZoomCommand ()
    : AreaCommand()
  { }


  ZoomCommand::~ZoomCommand ()
  { }


  bool  ZoomCommand::keyPressEvent ( CellWidget* widget, QKeyEvent* event )
  { 
    switch ( event->key() ) {
      case Qt::Key_Z: widget->setScale ( widget->getScale()*2.0 ); return true;
      case Qt::Key_M: widget->setScale ( widget->getScale()/2.0 ); return true;
    }
    return false;
  }


  bool  ZoomCommand::mousePressEvent ( CellWidget* widget, QMouseEvent* event )
  {
    if ( isActive() ) return true;

    if ( (event->button() == Qt::LeftButton) && (event->modifiers() & Qt::ControlModifier) ) {
      setActive         ( true );
      setStartPoint     ( event->pos() );
      setDrawingEnabled ( true );
    }

    return isActive();
  }


  bool  ZoomCommand::mouseReleaseEvent ( CellWidget* widget, QMouseEvent* event )
  {
    if ( !isActive() ) return false;

    setActive         ( false );
    setDrawingEnabled ( false );

    widget->reframe ( widget->screenToDbuBox(QRect(_startPoint,_stopPoint)) );

    return false;
  }


} // End of Hurricane namespace.