DragRectangleMouseHandler.h

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/********************************************************************
**                Image Component Library (ICL)                    **
**                                                                 **
** Copyright (C) 2006-2013 CITEC, University of Bielefeld          **
**                         Neuroinformatics Group                  **
** Website: www.iclcv.org and                                      **
**          http://opensource.cit-ec.de/projects/icl               **
**                                                                 **
** File   : ICLQt/src/ICLQt/DragRectangleMouseHandler.h            **
** Module : ICLQt                                                  **
** Authors: Christof Elbrechter                                    **
**                                                                 **
**                                                                 **
** GNU LESSER GENERAL PUBLIC LICENSE                               **
** This file may be used under the terms of the GNU Lesser General **
** Public License version 3.0 as published by the                  **
**                                                                 **
** Free Software Foundation and appearing in the file LICENSE.LGPL **
** included in the packaging of this file.  Please review the      **
** following information to ensure the license requirements will   **
** be met: http://www.gnu.org/licenses/lgpl-3.0.txt                **
**                                                                 **
** The development of this software was supported by the           **
** Excellence Cluster EXC 277 Cognitive Interaction Technology.    **
** The Excellence Cluster EXC 277 is a grant of the Deutsche       **
** Forschungsgemeinschaft (DFG) in the context of the German       **
** Excellence Initiative.                                          **
**                                                                 **
********************************************************************/

#pragma once

#include <ICLUtils/CompatMacros.h>
#include <ICLUtils/Lockable.h>
#include <ICLUtils/Rect.h>
#include <ICLCore/Color.h>
#include <ICLQt/MouseHandler.h>

namespace icl{
  namespace qt{

    class ICLDrawWidget;

    class ICLQt_API DragRectangleMouseHandler : public MouseHandler, public utils::Lockable{
      protected:
      utils::Point m_origin; 
      utils::Point m_curr;   
      int m_minDim;   
      utils::Rect m_rect;    

      public:
      core::Color4D m_edge; 
      core::Color4D m_fill; 
      core::Color4D m_outer;

      core::Color4D m_edgeWhileDrag; 
      core::Color4D m_fillWhileDrag; 
      core::Color4D m_outerWhileDrag;


      DragRectangleMouseHandler(int minDim=4);

      virtual void process(const MouseEvent &e);


      void visualize(ICLDrawWidget &w);

      bool hasRect() const;

      utils::Rect getRect() const;

      bool hasDraggedRect() const;

      utils::Rect getDragggedRect() const;

      inline void setMinDim(int minDim) { m_minDim = minDim; }

      inline int getMinDim() const{ return m_minDim; }
    };
  } // namespace qt
}