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#ifndef _Aspect_Convert_HeaderFile
#define _Aspect_Convert_HeaderFile
#include <Standard.hxx>
#include <Quantity_Parameter.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 Quantity_Parameter theQCenterX, const Quantity_Parameter theQCenterY,
const Quantity_Parameter theQSizeX, const Quantity_Parameter theQSizeY,
Standard_Integer& thePxLeft, Standard_Integer& thePxTop,
Standard_Integer& thePxSizeX, Standard_Integer& thePxSizeY)
{
Quantity_Parameter theParentSizeMin = Min (theParentPxSizeX, theParentPxSizeY);
thePxSizeX = Round (theQSizeX * theParentSizeMin);
thePxSizeY = Round (theQSizeY * theParentSizeMin);
Standard_Integer thePxCenterX = Round(theQCenterX * Quantity_Parameter (theParentPxSizeX));
Standard_Integer thePxCenterY = Round((1.0 - theQCenterY) * Quantity_Parameter (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,
Quantity_Parameter& theQCenterX, Quantity_Parameter& theQCenterY,
Quantity_Parameter& theQSizeX, Quantity_Parameter& theQSizeY)
{
Quantity_Parameter theParentSizeMin = Min (theParentPxSizeX, theParentPxSizeY);
theQSizeX = Quantity_Parameter(thePxSizeX) / theParentSizeMin;
theQSizeY = Quantity_Parameter(thePxSizeY) / theParentSizeMin;
Standard_Integer thePxCenterX = thePxLeft + thePxSizeX / 2;
Standard_Integer thePxCenterY = thePxTop + thePxSizeY / 2;
theQCenterX = Quantity_Parameter (thePxCenterX) / Quantity_Parameter (theParentPxSizeX);
theQCenterY = 1.0 - Quantity_Parameter (thePxCenterY) / Quantity_Parameter (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;
}
}
};
#endif /* _Aspect_Convert_HeaderFile */
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