/// <summary>
/// 这里的绝对是指相对于viewport左上角
/// </summary>
/// <param name="viewportRect"></param>
/// <param name="rectRate"></param>
/// <param name="matchedRelativeRect"></param>
/// <returns></returns>
public RECT GetMatchedAbsoluteRect(RECT viewportRect, Vec4f rectRate, RECT matchedRelativeRect)
{
var rect = viewportRect.GetChildRectByRate(rectRate);
return(new RECT()
{
x1 = rect.x1 + matchedRelativeRect.x1,
y1 = rect.y1 + matchedRelativeRect.y1,
x2 = rect.x1 + matchedRelativeRect.x2,
y2 = rect.y1 + matchedRelativeRect.y2,
});
}