include/opencascade/Aspect_Touch.hxx

0001 // Copyright (c) 2016-2019 OPEN CASCADE SAS
0002 //
0003 // This file is part of Open CASCADE Technology software library.
0004 //
0005 // This library is free software; you can redistribute it and/or modify it under
0006 // the terms of the GNU Lesser General Public License version 2.1 as published
0007 // by the Free Software Foundation, with special exception defined in the file
0008 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0009 // distribution for complete text of the license and disclaimer of any warranty.
0010 //
0011 // Alternatively, this file may be used under the terms of Open CASCADE
0012 // commercial license or contractual agreement.
0013
0014 #ifndef _Aspect_Touch_HeaderFile
0015 #define _Aspect_Touch_HeaderFile
0016
0017 #include <NCollection_Vec2.hxx>
0018
0019 //! Structure holding touch position - original and current location.
0020 class Aspect_Touch
0021 {
0022 public:
0023   NCollection_Vec2<double> From; //!< original touch position
0024   NCollection_Vec2<double> To;   //!< current  touch position
0025                                  // clang-format off
0026   bool                IsPreciseDevice; //!< precise device input (e.g. mouse cursor, NOT emulated from touch screen)
0027                                  // clang-format on
0028
0029   //! Return values delta.
0030   NCollection_Vec2<double> Delta() const { return To - From; }
0031
0032   //! Empty constructor
0033   Aspect_Touch()
0034       : From(0.0, 0.0),
0035         To(0.0, 0.0),
0036         IsPreciseDevice(false)
0037   {
0038   }
0039
0040   //! Constructor with initialization.
0041   Aspect_Touch(const NCollection_Vec2<double>& thePnt, bool theIsPreciseDevice)
0042       : From(thePnt),
0043         To(thePnt),
0044         IsPreciseDevice(theIsPreciseDevice)
0045   {
0046   }
0047
0048   //! Constructor with initialization.
0049   Aspect_Touch(double theX, double theY, bool theIsPreciseDevice)
0050       : From(theX, theY),
0051         To(theX, theY),
0052         IsPreciseDevice(theIsPreciseDevice)
0053   {
0054   }
0055 };
0056
0057 #endif // _Aspect_Touch_HeaderFile