public static void UpdateReferencePPI(float referencePPI = 326.0f)
{
#if LOG_DETAIL
MoreDebug.MoreStaticLog <UITools>("referencePPI=" + referencePPI +
", Screen.dpi=" + Screen.dpi +
", width=" + Screen.width +
", height=" + Screen.height);
#endif
float dpi = Screen.dpi;
if (Mathf.Approximately(dpi, 0.0f))
{
#if LOG_DETAIL
MoreDebug.MoreStaticLog <UITools>("it's dpi is NOT known");
#endif
// if the dpi is not valid, p2i is:
ms_pixelToInchRate = 1.0f;
}
else
{
float widthPixel = Screen.width;
float heightPixel = Screen.height;
if (Mathf.Approximately(widthPixel, 0.0f) || Mathf.Approximately(heightPixel, 0.0f))
{
#if LOG_DETAIL
MoreDebug.MoreStaticLog <UITools>("it's size is NOT known");
#endif
// if the width or height is not valid, p2i is:
ms_pixelToInchRate = referencePPI / dpi;
}
else
{
float widthInch = widthPixel / dpi;
float heightInch = heightPixel / dpi;
const float tabletDiagonalInch = 6.0f;
float currDiagonalInch = Mathf.Pow((widthInch * widthInch + heightInch * heightInch), 0.5f);
if (currDiagonalInch < tabletDiagonalInch)
{
// if current device is a phone, p2i is:
#if LOG_DETAIL
MoreDebug.MoreStaticLog <UITools>("currDiagonalInch= " + currDiagonalInch + ", it is a phone");
#endif
ms_pixelToInchRate = Mathf.Min(1.0f, referencePPI / dpi);
}
else
{
#if LOG_DETAIL
MoreDebug.MoreStaticLog <UITools>("currDiagonalInch= " + currDiagonalInch + ", it is a tablet");
#endif
// if current device is a tablet, p2i is:
ms_pixelToInchRate = referencePPI / dpi;
}
}
}
#if LOG_DETAIL
MoreDebug.MoreStaticLog <UITools>("referencePPI=" + referencePPI +
", Screen.dpi=" + Screen.dpi +
", ms_pixelToInchRate=" + ms_pixelToInchRate);
#endif
}