ManipulatablePaper.h

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/********************************************************************
**                Image Component Library (ICL)                    **
**                                                                 **
** Copyright (C) 2006-2014 CITEC, University of Bielefeld          **
**                         Neuroinformatics Group                  **
** Website: www.iclcv.org and                                      **
**          http://opensource.cit-ec.de/projects/icl               **
**                                                                 **
** File   : ICLPhysics/src/ICLPhysics/ManipulatablePaper.h         **
** Module : ICLPhysics                                             **
** Author : Christof Elbrechter, Matthias Esau                     **
**                                                                 **
**                                                                 **
** 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 <ICLGeom/Scene.h>
#include <ICLPhysics/PhysicsWorld.h>
#include <ICLPhysics/PhysicsPaper.h>
#include <ICLCore/Img.h>
#include <ICLUtils/Mutex.h>
#include <ICLQt/MouseHandler.h>

#include <map>

namespace icl{
namespace physics{

  class ICLPhysics_API ManipulatablePaper : public PhysicsPaper{
    struct VertexAttractor : public SceneObject{
      utils::Point idx;
      utils::Time time;
      geom::Vec startPos;
      bool oscillating;
      geom::Scene *scene;
      ManipulatablePaper *parent;

      VertexAttractor(geom::Scene *scene, utils::Point coords,
                      bool oscillating, ManipulatablePaper *parent);
      ~VertexAttractor();
      void apply(float streangth);
    };



    struct LineAnnotation : public SceneObject{
      utils::Point32f a;
      utils::Point32f b;
      PhysicsPaper *parent;

      LineAnnotation(PhysicsPaper *paper, const utils::Point32f &a,
                     const utils::Point32f &b, const geom::GeomColor &color);
      virtual void prepareForRendering();
    };


    struct DraggedPositionIndicator : public SceneObject{
      DraggedPositionIndicator(ManipulatablePaper *parent);
      utils::Point32f p;
      ManipulatablePaper *parent;
      virtual void prepareForRendering();
    };


    std::vector<SceneObject *> nodes;
    typedef std::map<std::string,VertexAttractor*> AttractorMap;
    AttractorMap attractors;
    PhysicsWorld *world;
    geom::Scene *scene;
    utils::Mutex attractorMutex;
    utils::SmartPtr<qt::MouseHandler> mouse;
    std::vector<LineAnnotation*> lines;
    DraggedPositionIndicator *draggedPositionIndicator;
    friend class ManipulatablePaperMouseHandler;
    bool showAllConstraints;

    public:
    ManipulatablePaper(PhysicsWorld *world, geom::Scene *scene,
                       int W, int H, const geom::Vec *init,
                       bool initByCorners,
                       const core::Img8u *frontTexture=0,
                       const core::Img8u *backTexture=0 );

    geom::Vec getPos(const utils::Point &idx);

    void prepareForRendering();

    void addAttractor(utils::Point coords, bool oscillating=false);

    void removeAttractor(utils::Point coords);

    void removeAllAttractors();

    void applyAllForces(float attractorForce, float mouseForce);

    qt::MouseHandler *createMouseHandler(int cameraIndex = 0);

    void setCubesVisible(bool on);

    void setTextureVisible(bool on);

    virtual void adaptRowStiffness(float val, int row);

    virtual void adaptColStiffness(float val, int col);

    virtual void adaptGlobalStiffness(float val);

    void removeAllLineAnnoations();



    void adaptStiffnessAlongLine(const utils::Point32f &a, const utils::Point32f &b, float val);

    void addLineAnnotation(const utils::Point32f &a, const utils::Point32f &b,
                           const geom::GeomColor &color=geom::GeomColor(255,100,0,255));

    void removeAllAnnoations();

    utils::Point32f getPaperCoordinates(const utils::Point32f &screenPosition2D);

    void setDraggedPosition(const utils::Point32f &paperPos);

    using PhysicsPaper::getPaperCoordinates;

    void setShowAllConstraints(bool show){
      showAllConstraints = show;
    }

    bool getShowAllConstraints() const{
      return showAllConstraints;
    }

    virtual void complexCustomRender(icl::geom::ShaderUtil *u);

    virtual void saveCFG(const std::string &filename);

    virtual void loadCFG(const std::string &filename);

    struct Shadow : public geom::SceneObject{
      Shadow(float zLevel, ManipulatablePaper *parent);
      virtual void customRender();
      float zLevel;
      ManipulatablePaper *parent;
    };

    utils::SmartPtr<Shadow> m_shadow;

    void addShadow(float zLevel){
      if(m_shadow){
        throw utils::ICLException("shadow cannot be added twice!");
      }
      m_shadow = new Shadow(zLevel,this);
      addChild(m_shadow.get());
    }
  };

}
}