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59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
// Copyright (c) 2019 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Aspect_ScrollDelta_HeaderFile
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#define _Aspect_ScrollDelta_HeaderFile
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#include <Aspect_VKeyFlags.hxx>
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#include <NCollection_Vec2.hxx>
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//! Parameters for mouse scroll action.
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struct Aspect_ScrollDelta
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{
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NCollection_Vec2<int> Point; //!< scale position
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Standard_Real Delta; //!< delta in pixels
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Aspect_VKeyFlags Flags; //!< key flags
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//! Return true if action has point defined.
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bool HasPoint() const
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{
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return Point.x() >= 0
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&& Point.y() >= 0;
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}
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//! Reset at point.
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void ResetPoint()
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{
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Point.SetValues (-1, -1);
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}
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//! Empty constructor.
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Aspect_ScrollDelta()
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: Point (-1, -1), Delta (0.0), Flags (Aspect_VKeyFlags_NONE) {}
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//! Constructor.
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Aspect_ScrollDelta (const NCollection_Vec2<int>& thePnt,
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Standard_Real theValue,
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Aspect_VKeyFlags theFlags = Aspect_VKeyFlags_NONE)
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: Point (thePnt), Delta (theValue), Flags (theFlags) {}
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//! Constructor with undefined point.
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Aspect_ScrollDelta (Standard_Real theValue,
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Aspect_VKeyFlags theFlags = Aspect_VKeyFlags_NONE)
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: Point (-1, -1), Delta (theValue), Flags (theFlags) {}
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};
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#endif // _Aspect_ScrollDelta_HeaderFile
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