/// <summary>
/// Adds a custom <see cref="HeaderVariable">HeaderVariable</see> to the list.
/// </summary>
/// <param name="variable">Header variable to add to the list.</param>
public void AddCustomVariable(HeaderVariable variable)
{
if (variable == null)
{
throw new ArgumentNullException(nameof(variable), "The header variable cannot be null.");
}
this.customVariables.Add(variable.Name, variable);
}
/// <summary>
/// Adds a custom <see cref="HeaderVariable">HeaderVariable</see> to the list.
/// </summary>
/// <param name="variable">Header variable to add to the list.</param>
/// <remarks>
/// All header variable names must start with the character '$'.<br />
/// Header variable names that already exists in the known list cannot be added.
/// </remarks>
public void AddCustomVariable(HeaderVariable variable)
{
if (variable == null)
{
throw new ArgumentNullException(nameof(variable), "A custom header variable cannot be null.");
}
if (!variable.Name.StartsWith("$"))
{
throw new ArgumentException("A header variable name must start with '$'.", nameof(variable));
}
if (this.variables.ContainsKey(variable.Name))
{
throw new ArgumentException("A known header variable with the same name already exists.", nameof(variable));
}
this.customVariables.Add(variable.Name, variable);
}
/// <summary>Gets the header variable associated with the specified name.</summary>
/// <param name="name">The name of the header variable to get.</param>
/// <param name="variable">When this method returns, contains the header variable associated with the specified name, if the name is found; otherwise, it contains null.</param>
/// <returns>True if the list contains a header variable with the specified name; otherwise, false.</returns>
public bool TryGetCustomVariable(string name, out HeaderVariable variable)
{
return(this.customVariables.TryGetValue(name, out variable));
}
private void WriteSystemVariable(HeaderVariable variable)
{
Debug.Assert(this.activeSection == DxfObjectCode.HeaderSection);
string name = variable.Name;
object value = variable.Value;
switch (name)
{
case HeaderVariableCode.AcadVer:
this.chunk.Write(9, name);
this.chunk.Write(1, StringEnum.GetStringValue((DxfVersion) value));
break;
case HeaderVariableCode.HandleSeed:
this.chunk.Write(9, name);
this.chunk.Write(5, value);
break;
case HeaderVariableCode.Angbase:
this.chunk.Write(9, name);
this.chunk.Write(50, value);
break;
case HeaderVariableCode.Angdir:
this.chunk.Write(9, name);
this.chunk.Write(70, (short) (AngleDirection) value);
break;
case HeaderVariableCode.AttMode:
this.chunk.Write(9, name);
this.chunk.Write(70, (short) (AttMode) value);
break;
case HeaderVariableCode.AUnits:
this.chunk.Write(9, name);
this.chunk.Write(70, (short) (AngleUnitType) value);
break;
case HeaderVariableCode.AUprec:
this.chunk.Write(9, name);
this.chunk.Write(70, value);
break;
case HeaderVariableCode.CeColor:
this.chunk.Write(9, name);
this.chunk.Write(62, ((AciColor) value).Index);
break;
case HeaderVariableCode.CeLtScale:
this.chunk.Write(9, name);
this.chunk.Write(40, value);
break;
case HeaderVariableCode.CeLtype:
this.chunk.Write(9, name);
this.chunk.Write(6, this.EncodeNonAsciiCharacters((string) value));
break;
case HeaderVariableCode.CeLweight:
this.chunk.Write(9, name);
this.chunk.Write(370, ((Lineweight) value).Value);
break;
case HeaderVariableCode.CLayer:
this.chunk.Write(9, name);
this.chunk.Write(8, this.EncodeNonAsciiCharacters((string) value));
break;
case HeaderVariableCode.CMLJust:
this.chunk.Write(9, name);
this.chunk.Write(70, (short) (MLineJustification) value);
break;
case HeaderVariableCode.CMLScale:
this.chunk.Write(9, name);
this.chunk.Write(40, value);
break;
case HeaderVariableCode.CMLStyle:
this.chunk.Write(9, name);
this.chunk.Write(2, this.EncodeNonAsciiCharacters((string) value));
break;
case HeaderVariableCode.DimStyle:
this.chunk.Write(9, name);
this.chunk.Write(2, this.EncodeNonAsciiCharacters((string) value));
break;
case HeaderVariableCode.TextSize:
this.chunk.Write(9, name);
this.chunk.Write(40, value);
break;
case HeaderVariableCode.TextStyle:
this.chunk.Write(9, name);
this.chunk.Write(7, this.EncodeNonAsciiCharacters((string) value));
break;
case HeaderVariableCode.LastSavedBy:
if (this.doc.DrawingVariables.AcadVer <= DxfVersion.AutoCad2000) break;
this.chunk.Write(9, name);
this.chunk.Write(1, this.EncodeNonAsciiCharacters((string) value));
break;
case HeaderVariableCode.LUnits:
this.chunk.Write(9, name);
this.chunk.Write(70, (short) (LinearUnitType) value);
break;
case HeaderVariableCode.LUprec:
this.chunk.Write(9, name);
this.chunk.Write(70, value);
break;
case HeaderVariableCode.DwgCodePage:
this.chunk.Write(9, name);
this.chunk.Write(3, value);
break;
case HeaderVariableCode.Extnames:
this.chunk.Write(9, name);
this.chunk.Write(290, value);
break;
case HeaderVariableCode.InsBase:
this.chunk.Write(9, name);
Vector3 pos = (Vector3) value;
this.chunk.Write(10, pos.X);
this.chunk.Write(20, pos.Y);
this.chunk.Write(30, pos.Z);
break;
case HeaderVariableCode.InsUnits:
this.chunk.Write(9, name);
this.chunk.Write(70, (short) (DrawingUnits) value);
break;
case HeaderVariableCode.LtScale:
this.chunk.Write(9, name);
this.chunk.Write(40, value);
break;
case HeaderVariableCode.LwDisplay:
this.chunk.Write(9, name);
this.chunk.Write(290, value);
break;
case HeaderVariableCode.PdMode:
this.chunk.Write(9, name);
this.chunk.Write(70, (short) (PointShape) value);
break;
case HeaderVariableCode.PdSize:
this.chunk.Write(9, name);
this.chunk.Write(40, value);
break;
case HeaderVariableCode.PLineGen:
this.chunk.Write(9, name);
this.chunk.Write(70, value);
break;
case HeaderVariableCode.PsLtScale:
this.chunk.Write(9, name);
this.chunk.Write(70, value);
break;
case HeaderVariableCode.TdCreate:
this.chunk.Write(9, name);
this.chunk.Write(40, DrawingTime.ToJulianCalendar((DateTime) value));
break;
case HeaderVariableCode.TduCreate:
this.chunk.Write(9, name);
this.chunk.Write(40, DrawingTime.ToJulianCalendar((DateTime) value));
break;
case HeaderVariableCode.TdUpdate:
this.chunk.Write(9, name);
this.chunk.Write(40, DrawingTime.ToJulianCalendar((DateTime) value));
break;
case HeaderVariableCode.TduUpdate:
this.chunk.Write(9, name);
this.chunk.Write(40, DrawingTime.ToJulianCalendar((DateTime) value));
break;
case HeaderVariableCode.TdinDwg:
this.chunk.Write(9, name);
this.chunk.Write(40, ((TimeSpan) value).TotalDays);
break;
}
}
public void WriteSystemVariable(HeaderVariable variable)
{
if (this.activeSection != StringCode.HeaderSection)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(HeaderVariable.NAME_CODE_GROUP, variable.Name);
this.WriteCodePair(variable.CodeGroup, variable.Value);
}