/// <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);
}
private static void Write(Stream stream, LayerState ls)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (ls == null)
{
throw new ArgumentNullException(nameof(ls));
}
TextCodeValueWriter chunk = new TextCodeValueWriter(new StreamWriter(stream));
chunk.Write(0, LayerStateDictionary);
chunk.Write(0, LayerStateName);
chunk.Write(1, ls.Name);
chunk.Write(91, 2047); // unknown code functionality <- 32-bit integer value
chunk.Write(301, ls.Description);
chunk.Write(290, ls.PaperSpace);
chunk.Write(302, ls.CurrentLayer);
foreach (LayerStateProperties lp in ls.Properties.Values)
{
chunk.Write(8, lp.Name);
chunk.Write(90, (int)lp.Flags);
chunk.Write(62, lp.Color.Index);
chunk.Write(370, (short)lp.Lineweight);
chunk.Write(6, lp.LinetypeName);
//chunk.Write(2, properties.PlotStyleName);
chunk.Write(440, lp.Transparency.Value == 0 ? 0 : Transparency.ToAlphaValue(lp.Transparency));
if (lp.Color.UseTrueColor)
{
// this code only appears if the layer color has been defined as true color
chunk.Write(92, AciColor.ToTrueColor(lp.Color));
}
}
chunk.Flush();
}
private static LayerState ReadLayerState(TextCodeValueReader chunk)
{
string name = string.Empty;
string description = string.Empty;
string currentLayer = Layer.DefaultName;
bool paperSpace = false;
List <LayerStateProperties> layerProperties = new List <LayerStateProperties>();
if (chunk.Code == 0)
{
if (chunk.ReadString() != LayerStateName)
{
throw new Exception("File not valid.");
}
}
else
{
throw new Exception("File not valid.");
}
chunk.Next();
while (chunk.Code != 0)
{
switch (chunk.Code)
{
case 1:
name = chunk.ReadString();
chunk.Next();
break;
case 91: // unknown code
chunk.Next();
break;
case 301:
description = chunk.ReadString();
chunk.Next();
break;
case 290:
paperSpace = chunk.ReadBool();
chunk.Next();
break;
case 302: // active layer
currentLayer = chunk.ReadString();
chunk.Next();
break;
case 8: // begin reading layer properties
layerProperties.Add(ReadLayerProperties(chunk));
break;
default:
chunk.Next();
break;
}
}
LayerState states = new LayerState(name)
{
Description = description,
CurrentLayer = currentLayer,
PaperSpace = paperSpace
};
foreach (LayerStateProperties lp in layerProperties)
{
if (!states.Properties.ContainsKey(lp.Name))
{
states.Properties.Add(lp.Name, lp);
}
}
return(states);
}
