/// <summary>
/// Creates a new LayerState that is a copy of the current instance.
/// </summary>
/// <param name="newName">LayerState name of the copy.</param>
/// <returns>A new LayerState that is a copy of this instance.</returns>
public override TableObject Clone(string newName)
{
LayerState ls = new LayerState(newName)
{
Description = this.description,
CurrentLayer = this.currentLayer
};
foreach (LayerStateProperties item in this.properties.Values)
{
LayerStateProperties lp = (LayerStateProperties)item.Clone();
ls.Properties.Add(lp.Name, lp);
}
return(ls);
}
/// <summary>
/// Initializes a new instance of the <c>LayerState</c> class from a specified list of layers.
/// </summary>
/// <param name="name">Layer state name.</param>
/// <param name="layers">List of layers.</param>
public LayerState(string name, IEnumerable <Layer> layers)
: base(name, DxfObjectCode.LayerStates, true)
{
this.description = string.Empty;
this.currentLayer = Layer.DefaultName;
this.paperSpace = false;
this.properties = new ObservableDictionary <string, LayerStateProperties>();
this.properties.BeforeAddItem += this.Properties_BeforeAddItem;
if (layers == null)
{
throw new ArgumentNullException(nameof(layers));
}
foreach (Layer layer in layers)
{
LayerStateProperties prop = new LayerStateProperties(layer);
this.properties.Add(prop.Name, prop);
}
}
private static LayerStateProperties ReadLayerProperties(TextCodeValueReader chunk)
{
LayerPropertiesFlags flags = LayerPropertiesFlags.Plot;
string lineType = String.Empty;
//string plotStyle = string.Empty;
AciColor color = AciColor.Default;
Lineweight lineweight = Lineweight.Default;
Transparency transparency = new Transparency(0);
string name = chunk.ReadString();
chunk.Next();
while (chunk.Code != 8 && chunk.Code != 0)
{
switch (chunk.Code)
{
case 90:
flags = (LayerPropertiesFlags)chunk.ReadInt();
chunk.Next();
break;
case 62:
color = AciColor.FromCadIndex(chunk.ReadShort());
chunk.Next();
break;
case 370:
lineweight = (Lineweight)chunk.ReadShort();
chunk.Next();
break;
case 6:
lineType = chunk.ReadString();
chunk.Next();
break;
case 2:
//plotStyle = chunk.ReadString();
chunk.Next();
break;
case 440:
int alpha = chunk.ReadInt();
transparency = alpha == 0 ? new Transparency(0) : Transparency.FromAlphaValue(alpha);
chunk.Next();
break;
case 92:
color = AciColor.FromTrueColor(chunk.ReadInt());
chunk.Next();
break;
default:
chunk.Next();
break;
}
}
if (string.IsNullOrEmpty(name))
{
return(null);
}
LayerStateProperties properties = new LayerStateProperties(name)
{
Flags = flags,
Color = color,
Lineweight = lineweight,
LinetypeName = lineType,
//PlotStyleName = plotStyle,
Transparency = transparency
};
return(properties);
}