GLViewer_Context.h

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// Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//

//  Author : OPEN CASCADE
// File:      GLViewer_Context.h
// Created:   November, 2004
//
#ifndef GLVIEWER_CONTEXT_H
#define GLVIEWER_CONTEXT_H

#ifdef WIN32
#include "windows.h"
#endif

#include "GLViewer_Defs.h"
#include "GLViewer_Object.h"

class QRect;

#include <Quantity_NameOfColor.hxx>
#include <Quantity_Color.hxx>

#ifdef __APPLE__
#include <OpenGL/gl.h>
#else
#include <GL/gl.h>
#endif

class GLViewer_Viewer2d;

#ifdef WIN32
#pragma warning( disable:4251 )
#endif

class GLVIEWER_API GLViewer_Context
{
public:
  GLViewer_Context( GLViewer_Viewer2d* );
  ~GLViewer_Context();

  void                  setUpdateAll( bool on ) { myUpdateAll = on; }
  bool                  isUpdateAll() const { return myUpdateAll; }


  int                   MoveTo( int x, int y, bool byCircle = false );
  int                   Select( bool Append = false, bool byCircle = false );
  int                   SelectByRect( const QRect& theRect, bool Append = false );

  void                  SetHighlightColor( Quantity_NameOfColor aCol );
  void                  SetSelectionColor( Quantity_NameOfColor aCol );
  Quantity_NameOfColor  HighlightColor() { return myHighlightColor; }
  Quantity_NameOfColor  SelectionColor() { return mySelectionColor; } 

  int                   NbSelected();
  void                  InitSelected();
  bool                  MoreSelected();
  bool                  NextSelected();
  GLViewer_Object*      SelectedObject();

  bool                  isSelected( GLViewer_Object* theObject );


  int                   insertObject( GLViewer_Object* theObject, bool display = false, bool isActive = true );

  bool                  replaceObject( GLViewer_Object* oldObject, GLViewer_Object* newObject );
  void                  updateScales( GLfloat theX, GLfloat theY );
  void                  setTolerance( int tol ) { myTolerance = tol; }


  const ObjList&        getObjects( bool isActive = true )
                        { return isActive ? myActiveObjects : myInactiveObjects; }

  GLViewer_Object*      getFirstObject() { return *( myActiveObjects.begin() ); }

  void                  clearHighlighted( bool updateViewer );
  void                  clearSelected( bool updateViewer );
  void                  setSelected( GLViewer_Object* theObject, bool updateViewer );
  void                  remSelected( GLViewer_Object* theObject, bool updateViewer );

  GLViewer_Object*      getCurrentObject() { return myLastPicked; }
  bool                  currentObjectIsChanged() { return myLastPickedChanged; }

  void                  eraseObject( GLViewer_Object* theObject, bool updateViewer = true );
  void                  deleteObject( GLViewer_Object* theObject, bool updateViewer = true );

  bool                  setActive( GLViewer_Object* theObject );
  bool                  setInactive( GLViewer_Object* theObject );

protected:

  bool                  myUpdateAll;

  GLViewer_Viewer2d*    myGLViewer2d;
  GLViewer_Object*      myLastPicked;
  bool                  myLastPickedChanged;


  ObjList               myActiveObjects;

  ObjList               myInactiveObjects;

  ObjList               mySelectedObjects;
  int                   mySelCurIndex;

  GLfloat               myXhigh;
  GLfloat               myYhigh;

  Quantity_NameOfColor  myHighlightColor;
  Quantity_NameOfColor  mySelectionColor;
  GLboolean             myHFlag;
  GLboolean             mySFlag;
  int                   myTolerance;
};

#ifdef WIN32
#pragma warning ( default:4251 )
#endif

#endif