private Size CalculateWMSize(WaterMarkLayout Layout, Size WMSize, Size ImgSize)
{
Size NewSize = new Size(WMSize.Width, WMSize.Height);
if (Layout == WaterMarkLayout.Zoom || Layout == WaterMarkLayout.Repeat)
{
NewSize.Width = ImgSize.Width;
NewSize.Height = ImgSize.Height;
}
else
{
if (WMSize.Width > WMSize.Height)
{
if (Layout == WaterMarkLayout.Ajust)
{
NewSize.Width = ImgSize.Width;
NewSize.Height = (int)(((double)ImgSize.Width / (double)WMSize.Width) * (double)WMSize.Height);
}
else if (Layout == WaterMarkLayout.Fill)
{
NewSize.Width = (int)(((double)ImgSize.Height / (double)WMSize.Height) * (double)WMSize.Width);
NewSize.Height = ImgSize.Height;
}
}
else
{
if (Layout == WaterMarkLayout.Ajust)
{
NewSize.Width = (int)(((double)ImgSize.Height) / (double)WMSize.Height * (double)WMSize.Width);
NewSize.Height = ImgSize.Height;
}
else if (Layout == WaterMarkLayout.Fill)
{
NewSize.Width = ImgSize.Width;
NewSize.Height = (int)(((double)ImgSize.Width) / (double)WMSize.Width * (double)WMSize.Height);
}
}
}
return NewSize;
}
private Point CalculateWMPosition(WaterMarkLayout Layout, Size WMSize, Size WMOffSet, Size ImgSize)
{
Point position = new Point(0, 0);
//Special Layout REPEAT
if (Layout == WaterMarkLayout.Repeat)
{
return position;
}
//Height
if (Layout == WaterMarkLayout.TopLeft ||
Layout == WaterMarkLayout.TopCenter ||
Layout == WaterMarkLayout.TopRight)
{
position.Y = Calculate3PointPosition(1, ImgSize.Height, WMSize.Height, WMOffSet.Height);
}
else if (Layout == WaterMarkLayout.MiddleLeft ||
Layout == WaterMarkLayout.MiddleCenter ||
Layout == WaterMarkLayout.MiddleRight ||
Layout == WaterMarkLayout.Fill ||
Layout == WaterMarkLayout.Ajust)
{
position.Y = Calculate3PointPosition(2, ImgSize.Height, WMSize.Height, WMOffSet.Height);
}
else if (Layout == WaterMarkLayout.BottomLeft ||
Layout == WaterMarkLayout.BottomCenter ||
Layout == WaterMarkLayout.BottomRight)
{
position.Y = Calculate3PointPosition(3, ImgSize.Height, WMSize.Height, WMOffSet.Height);
}
//Width
if (Layout == WaterMarkLayout.TopLeft ||
Layout == WaterMarkLayout.MiddleLeft ||
Layout == WaterMarkLayout.BottomLeft)
{
position.X = Calculate3PointPosition(1, ImgSize.Width, WMSize.Width, WMOffSet.Width);
}
else if (Layout == WaterMarkLayout.TopCenter ||
Layout == WaterMarkLayout.MiddleCenter ||
Layout == WaterMarkLayout.BottomCenter ||
Layout == WaterMarkLayout.Fill ||
Layout == WaterMarkLayout.Ajust)
{
position.X = Calculate3PointPosition(2, ImgSize.Width, WMSize.Width, WMOffSet.Width);
}
else if (Layout == WaterMarkLayout.TopRight ||
Layout == WaterMarkLayout.MiddleRight ||
Layout == WaterMarkLayout.BottomRight)
{
position.X = Calculate3PointPosition(3, ImgSize.Width, WMSize.Width, WMOffSet.Width);
}
return position;
}
