/// <summary>
/// Extension method of Dimension. Retrieves the size in pixels.
/// </summary>
/// <param name="dimension">The dimension.</param>
/// <returns>Size in pixels</returns>
public System.Drawing.Size GetSize()
{
var size = System.Drawing.Size.Empty;
if (this.xSpecified)
{
size.Width = this.x;
}
if (this.ySpecified)
{
size.Height = this.y;
}
AbsDimension absDimension = this.Item as AbsDimension;
if (absDimension != null)
{
size = new System.Drawing.Size(absDimension.x, absDimension.y);
}
RelDimension relDimension = this.Item as RelDimension;
if (relDimension != null)
{
var screenSize = Screen.PrimaryScreen.Bounds.Size;
size = new System.Drawing.Size(
(int)(screenSize.Width * relDimension.x),
(int)(screenSize.Height * relDimension.y));
}
return
(size);
}
public void Update(int?x, int?y)
{
if (this.Item == null)
{
if (x.HasValue)
{
this.x = x.Value;
this.xSpecified = true;
}
if (y.HasValue)
{
this.y = y.Value;
this.yFieldSpecified = true;
}
}
AbsDimension absDimension = this.Item as AbsDimension;
if (absDimension != null)
{
if (x.HasValue)
{
absDimension.x = x.Value;
}
if (y.HasValue)
{
absDimension.y = y.Value;
}
}
RelDimension relDimension = this.Item as RelDimension;
if (relDimension != null)
{
var screenSize = Screen.PrimaryScreen.Bounds.Size;
if (x.HasValue)
{
relDimension.x = (float)x.Value / screenSize.Width;
}
if (y.HasValue)
{
relDimension.y = (float)y.Value / screenSize.Height;
}
}
if (absDimension == null && relDimension == null)
{
this.Item = new AbsDimension();
(this.Item as AbsDimension).x = x.Value;
(this.Item as AbsDimension).y = y.Value;
}
}
/// <summary>
/// Returns the textual representation of a dimension object.
/// </summary>
/// <returns>
/// A <see cref="T:System.String"/> that represents the Dimension object.
/// </returns>
public override string ToString()
{
StringBuilder sb = new StringBuilder();
if (this.xSpecified)
{
sb.Append(this.x);
}
if (this.xSpecified || this.ySpecified)
{
sb.Append(';');
}
if (this.ySpecified)
{
sb.Append(this.y);
}
if (sb.Length > 0)
{
sb.Append(' ');
}
AbsDimension absDimension = this.Item as AbsDimension;
if (absDimension != null)
{
sb.Append(String.Format("Abs {0};{1}", absDimension.x, absDimension.y));
}
RelDimension relDimension = this.Item as RelDimension;
if (relDimension != null)
{
sb.Append(String.Format(CultureInfo.InvariantCulture, "Rel {0};{1}", relDimension.x, relDimension.y));
}
return
(sb.ToString());
}
/// <summary>
/// Creates a new Dimension of a given type from the string argument.
/// </summary>
/// <typeparam name="TDimension">The type of the dimension.</typeparam>
/// <param name="textValue">The text value.</param>
/// <returns>The dimension object</returns>
public static TDimension FromString <TDimension>(string textValue)
where TDimension : Dimension, new()
{
TDimension dimension = new TDimension();
if (String.IsNullOrEmpty(textValue))
{
return(null);
}
textValue = textValue.Replace(" ", "");
if (textValue.Length == 0)
{
return(dimension);
}
Regex regEx = new Regex(@"(([-+]?\d+)?;([-+]?\d+)?)?((Rel|Abs)([-+]?\d+(.\d+)?);([-+]?\d+(.\d+)?))?");
Match match = regEx.Match(textValue);
if (!match.Success)
{
throw new ArgumentException("Please use the following BNF format: {{<x>};{<y>}} {(Rel|Abs}<x>;<y>}");
}
if (!match.Groups[1].Success && !match.Groups[4].Success)
{
throw new ArgumentException("Either x;y attributes or Abs/Rel x;y items should be completed!");
}
// optional x attribute
if (match.Groups[2].Success)
{
dimension.x = Int32.Parse(match.Groups[2].Value);
dimension.xSpecified = true;
}
// optional y attribute
if (match.Groups[3].Success)
{
dimension.y = Int32.Parse(match.Groups[3].Value);
dimension.ySpecified = true;
}
// dimension modifier (abs or rel) and both values are specified
if (match.Groups[5].Success && match.Groups[6].Success && match.Groups[8].Success)
{
switch (match.Groups[5].Value)
{
case "Rel":
RelDimension relDimension = new RelDimension();
relDimension.x = float.Parse(match.Groups[6].Value, CultureInfo.InvariantCulture);
relDimension.y = float.Parse(match.Groups[8].Value, CultureInfo.InvariantCulture);
dimension.Item = relDimension;
break;
case "Abs":
default:
// only if there are no decimals (absolute coordinates are integers)
if (match.Groups[7].Success || match.Groups[9].Success)
{
throw new ArgumentException("Absolute coordinates should be integers!");
}
AbsDimension absDimension = new AbsDimension();
absDimension.x = Int32.Parse(match.Groups[6].Value);
absDimension.y = Int32.Parse(match.Groups[8].Value);
dimension.Item = absDimension;
break;
}
}
return(dimension);
}
