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1 | // Copyright (c) 2019 OPEN CASCADE SAS |
| 2 | // |
| 3 | // This file is part of Open CASCADE Technology software library. |
| 4 | // |
| 5 | // This library is free software; you can redistribute it and/or modify it under |
| 6 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 7 | // by the Free Software Foundation, with special exception defined in the file |
| 8 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 9 | // distribution for complete text of the license and disclaimer of any warranty. |
| 10 | // |
| 11 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 12 | // commercial license or contractual agreement. |
| 13 | |
| 14 | #ifndef _Aspect_ScrollDelta_HeaderFile |
| 15 | #define _Aspect_ScrollDelta_HeaderFile |
| 16 | |
| 17 | #include <Aspect_VKeyFlags.hxx> |
| 18 | #include <NCollection_Vec2.hxx> |
| 19 | #include <Standard_Real.hxx> |
| 20 | |
| 21 | //! Parameters for mouse scroll action. |
| 22 | struct Aspect_ScrollDelta |
| 23 | { |
| 24 | |
| 25 | NCollection_Vec2<int> Point; //!< scale position |
| 26 | Standard_Real Delta; //!< delta in pixels |
| 27 | Aspect_VKeyFlags Flags; //!< key flags |
| 28 | |
| 29 | //! Return true if action has point defined. |
| 30 | bool HasPoint() const |
| 31 | { |
| 32 | return Point.x() >= 0 |
| 33 | && Point.y() >= 0; |
| 34 | } |
| 35 | |
| 36 | //! Reset at point. |
| 37 | void ResetPoint() |
| 38 | { |
| 39 | Point.SetValues (-1, -1); |
| 40 | } |
| 41 | |
| 42 | //! Empty constructor. |
| 43 | Aspect_ScrollDelta() |
| 44 | : Point (-1, -1), Delta (0.0), Flags (Aspect_VKeyFlags_NONE) {} |
| 45 | |
| 46 | //! Constructor. |
| 47 | Aspect_ScrollDelta (const NCollection_Vec2<int>& thePnt, |
| 48 | Standard_Real theValue, |
| 49 | Aspect_VKeyFlags theFlags = Aspect_VKeyFlags_NONE) |
| 50 | : Point (thePnt), Delta (theValue), Flags (theFlags) {} |
| 51 | |
| 52 | //! Constructor with undefined point. |
| 53 | Aspect_ScrollDelta (Standard_Real theValue, |
| 54 | Aspect_VKeyFlags theFlags = Aspect_VKeyFlags_NONE) |
| 55 | : Point (-1, -1), Delta (theValue), Flags (theFlags) {} |
| 56 | |
| 57 | }; |
| 58 | |
| 59 | #endif // _Aspect_ScrollDelta_HeaderFile |
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