/// <summary>
/// 从float转换到TwFix32
/// </summary>
/// <param name="floatValue"></param>
/// <returns></returns>
public static TwFix32 FloatToFix32(float floatValue)
{
TwFix32 fix32 = new TwFix32();
Int32 value = (Int32)(floatValue * 65536.0 + 0.5);
fix32.Whole = (Int16)(value >> 16);
fix32.Frac = (UInt16)(value & 0x0000ffffL);
return(fix32);
}
/// <summary>
/// 将形如XXXX.XXXX的字符串转换为fix32数据类型
/// </summary>
/// <param name="itemValue">解析的字符串</param>
/// <param name="fix32">解析完成后初始化的对象</param>
/// <returns>解析成功返回true,否则返回false</returns>
public static bool Parse(string itemValue, ref TwFix32 fix32)
{
ILog logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// log4net.Config.XmlConfigurator.Configure(new FileInfo(Config.GetConfigDir() + ConstCommon.logConfigFileName));
try
{
// 1:按照.对字符串进行拆分
char[] separator = { '.' };
string[] results = itemValue.Split(separator, StringSplitOptions.RemoveEmptyEntries);
fix32.Whole = short.MinValue;
fix32.Frac = ushort.MinValue;
//2:如果字符串非空
if (results.Length > 0)
{
//2.3.1:给fix32整数部分进行赋值
fix32.Whole = short.Parse(results[0]);
//2.3.1:给fix32小数部分进行赋值
if (results.Length == 2)
{
fix32.Frac = (ushort)(double.Parse(results[1]));
}
else
{
fix32.Frac = 0;
}
}
return(true);
}
#region 异常处理
catch (ArgumentNullException e)
{
logger.Error("argument is null in TwFix32.Parse function " + e.Message);
return(false);
}
catch (FormatException e)
{
logger.Error("FormatException is wrong in TwFix32.Parse function " + e.Message);
return(false);
}
catch (OverflowException e)
{
logger.Error("OverflowException occured in TwFix32.Parse function " + e.Message);
return(false);
}
catch (Exception e)
{
logger.Error("Exception occured in TwFix32.Parse function " + e.Message);
return(false);
}
#endregion
}
/// <summary>
/// 将形如XXXX.XXXX:XXXX.XXXX:XXXX.XXXX:XXXX.XXXX的字符串转换为frame数据类型
/// </summary>
/// <param name="itemValue">解析的字符串</param>
/// <param name="fix32">解析完成后初始化的对象</param>
/// <returns>解析成功返回true,否则返回false</returns>
public static bool Parse(string itemValue, ref TwFrame twFrame)
{
char[] separator = { ':' };
string[] results = itemValue.Split(separator, StringSplitOptions.RemoveEmptyEntries);
//字符串数组不为4个
if (results.Length != 4)
{
return(false);
}
if (!(TwFix32.Parse(results[0], ref twFrame.Left) &&
TwFix32.Parse(results[1], ref twFrame.Top) &&
TwFix32.Parse(results[2], ref twFrame.Right) &&
TwFix32.Parse(results[3], ref twFrame.Bottom)))
{
return(false);
}
else
{
return(true);
}
}