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occt/src/Aspect/Aspect_Convert.hxx
kgv ee2be2a881 0028316: Coding Rules - Elimilate confusing aliases of Standard_Real type in V3d_View
Quantity_Factor, Quantity_Parameter, Quantity_Ratio, Quantity_Coefficient,
Quantity_PlaneAngle, Quantity_Length, V3d_Parameter and V3d_Coordinate
have been replaced by Standard_Real in visualization classes.
2017-06-01 13:55:18 +03:00

87 lines
3.7 KiB
C++

// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _Aspect_Convert_HeaderFile
#define _Aspect_Convert_HeaderFile
#include <Standard.hxx>
#include <Standard_Real.hxx>
//! Auxiliary functions for DCU <-> Pixels conversions.
namespace Aspect_Convert
{
inline Standard_Integer Round (Standard_Real theValue)
{
return Standard_Integer(theValue + (theValue >= 0 ? 0.5 : -0.5 ));
}
inline void ConvertCoordinates (const Standard_Integer theParentPxSizeX, const Standard_Integer theParentPxSizeY,
const Standard_Real theQCenterX, const Standard_Real theQCenterY,
const Standard_Real theQSizeX, const Standard_Real theQSizeY,
Standard_Integer& thePxLeft, Standard_Integer& thePxTop,
Standard_Integer& thePxSizeX, Standard_Integer& thePxSizeY)
{
Standard_Real theParentSizeMin = Min (theParentPxSizeX, theParentPxSizeY);
thePxSizeX = Round (theQSizeX * theParentSizeMin);
thePxSizeY = Round (theQSizeY * theParentSizeMin);
Standard_Integer thePxCenterX = Round(theQCenterX * Standard_Real (theParentPxSizeX));
Standard_Integer thePxCenterY = Round((1.0 - theQCenterY) * Standard_Real (theParentPxSizeY));
thePxLeft = thePxCenterX - thePxSizeX / 2;
thePxTop = thePxCenterY - thePxSizeY / 2;
}
inline void ConvertCoordinates (const Standard_Integer theParentPxSizeX, const Standard_Integer theParentPxSizeY,
const Standard_Integer thePxLeft, const Standard_Integer thePxTop,
const Standard_Integer thePxSizeX, const Standard_Integer thePxSizeY,
Standard_Real& theQCenterX, Standard_Real& theQCenterY,
Standard_Real& theQSizeX, Standard_Real& theQSizeY)
{
Standard_Real theParentSizeMin = Min (theParentPxSizeX, theParentPxSizeY);
theQSizeX = Standard_Real(thePxSizeX) / theParentSizeMin;
theQSizeY = Standard_Real(thePxSizeY) / theParentSizeMin;
Standard_Integer thePxCenterX = thePxLeft + thePxSizeX / 2;
Standard_Integer thePxCenterY = thePxTop + thePxSizeY / 2;
theQCenterX = Standard_Real (thePxCenterX) / Standard_Real (theParentPxSizeX);
theQCenterY = 1.0 - Standard_Real (thePxCenterY) / Standard_Real (theParentPxSizeY);
}
inline void FitIn (const Standard_Integer theParentPxSizeX, const Standard_Integer theParentPxSizeY,
Standard_Integer& thePxLeft, Standard_Integer& thePxTop,
Standard_Integer& thePxSizeX, Standard_Integer& thePxSizeY)
{
if (thePxLeft < 0)
{
//thePxSizeX -= 2 * thePxLeft;
thePxLeft = 0;
}
if ((thePxLeft + thePxSizeX) > theParentPxSizeX)
{
thePxSizeX = theParentPxSizeX - thePxLeft;
}
if (thePxTop < 0)
{
//thePxSizeY -= 2 * thePxTop;
thePxTop = 0;
}
if ((thePxTop + thePxSizeY) > theParentPxSizeY)
{
thePxSizeY = theParentPxSizeY - thePxTop;
}
}
} // namespace Aspect_Convert
#endif /* _Aspect_Convert_HeaderFile */