public bool TryGetStyleFromXDataDifference(DxfXData xdata, out DxfDimStyle style)
{
style = default(DxfDimStyle);
var dimStyleList = xdata?.Items.OfType <DxfXDataNamedList>().FirstOrDefault(l => l.Name == XDataStyleName);
if (dimStyleList == null)
{
// no dim style override
return(false);
}
if (dimStyleList.Items.Count % 2 != 0)
{
// must be an even number
return(false);
}
var codePairs = new List <DxfCodePair>();
for (int i = 0; i < dimStyleList.Items.Count; i += 2)
{
if (!(dimStyleList.Items[i] is DxfXDataInteger codeItem))
{
// must alternate between int/<data>
return(false);
}
DxfCodePair pair;
var valueItem = dimStyleList.Items[i + 1];
var code = codeItem.Value;
switch (DxfCodePair.ExpectedType(code).Name)
{
case nameof(Boolean):
pair = new DxfCodePair(code, true);
break;
case nameof(Double) when valueItem is DxfXDataDistance dist:
pair = new DxfCodePair(code, dist.Value);
break;
case nameof(Double) when valueItem is DxfXDataReal real:
pair = new DxfCodePair(code, real.Value);
break;
case nameof(Double) when valueItem is DxfXDataScaleFactor scale:
pair = new DxfCodePair(code, scale.Value);
break;
case nameof(Int16) when valueItem is DxfXDataInteger i32:
pair = new DxfCodePair(code, i32.Value);
break;
case nameof(Int32) when valueItem is DxfXDataLong i32:
pair = new DxfCodePair(code, i32.Value);
break;
case nameof(Int64) when valueItem is DxfXDataLong i32:
pair = new DxfCodePair(code, i32.Value);
break;
case nameof(String) when valueItem is DxfXDataString str:
pair = new DxfCodePair(code, str.Value);
break;
default:
// unexpected code pair type
return(false);
}
codePairs.Add(pair);
}
if (codePairs.Count == 0)
{
// no difference to apply
return(false);
}
// if we made it this far, there is a differnce that should be applied
style = Clone();
foreach (var pair in codePairs)
{
style.ApplyCodePair(pair);
}
return(true);
}
public bool TryGetStyleFromXDataDifference(DxfXDataApplicationItemCollection xdataItemCollection, out DxfDimStyle style)
{
// style data is encoded as
// 1001 DSTYLE
// 1002 {
// ... style overrides
// 1002 }
style = default(DxfDimStyle);
if (xdataItemCollection == null)
{
return(false);
}
for (int i = 0; i < xdataItemCollection.Count - 1; i++)
{
if (xdataItemCollection[i] is DxfXDataString xdataString && xdataString.Value == XDataStyleName &&
xdataItemCollection[i + 1] is DxfXDataItemList itemList)
{
if (itemList.Items.Count % 2 != 0)
{
// must be an even number
return(false);
}
var codePairs = new List <DxfCodePair>();
for (int j = 0; j < itemList.Items.Count; j += 2)
{
if (!(itemList.Items[j] is DxfXDataInteger codeItem))
{
// must alternate between int/<data>
return(false);
}
DxfCodePair pair;
var valueItem = itemList.Items[j + 1];
var code = codeItem.Value;
switch (DxfCodePair.ExpectedType(code).Name)
{
case nameof(Boolean):
pair = new DxfCodePair(code, true);
break;
case nameof(Double) when valueItem is DxfXDataDistance dist:
pair = new DxfCodePair(code, dist.Value);
break;
case nameof(Double) when valueItem is DxfXDataReal real:
pair = new DxfCodePair(code, real.Value);
break;
case nameof(Double) when valueItem is DxfXDataScaleFactor scale:
pair = new DxfCodePair(code, scale.Value);
break;
case nameof(Int16) when valueItem is DxfXDataInteger i32:
pair = new DxfCodePair(code, i32.Value);
break;
case nameof(Int32) when valueItem is DxfXDataLong i32:
pair = new DxfCodePair(code, i32.Value);
break;
case nameof(Int64) when valueItem is DxfXDataLong i32:
pair = new DxfCodePair(code, i32.Value);
break;
case nameof(String) when valueItem is DxfXDataString str:
pair = new DxfCodePair(code, str.Value);
break;
default:
// unexpected code pair type
return(false);
}
codePairs.Add(pair);
}
if (codePairs.Count == 0)
{
// no difference to apply
return(false);
}
// if we made it this far, there is a difference that should be applied
style = Clone();
foreach (var pair in codePairs)
{
style.ApplyCodePair(pair);
}
return(true);
}
}
return(false);
}
internal static DxfDimStyle FromBuffer(DxfCodePairBufferReader buffer)
{
var item = new DxfDimStyle();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (pair.Code == 0)
{
break;
}
buffer.Advance();
switch (pair.Code)
{
case 70:
item.StandardFlags = (int)pair.ShortValue;
break;
case DxfCodePairGroup.GroupCodeNumber:
var groupName = DxfCodePairGroup.GetGroupName(pair.StringValue);
item.ExtensionDataGroups.Add(DxfCodePairGroup.FromBuffer(buffer, groupName));
break;
case 3:
item.DimensioningSuffix = (pair.StringValue);
break;
case 4:
item.AlternateDimensioningSuffix = (pair.StringValue);
break;
case 5:
item.ArrowBlockName = (pair.StringValue);
break;
case 6:
item.FirstArrowBlockName = (pair.StringValue);
break;
case 7:
item.SecondArrowBlockName = (pair.StringValue);
break;
case 40:
item.DimensioningScaleFactor = (pair.DoubleValue);
break;
case 41:
item.DimensioningArrowSize = (pair.DoubleValue);
break;
case 42:
item.DimensionExtensionLineOffset = (pair.DoubleValue);
break;
case 43:
item.DimensionLineIncrement = (pair.DoubleValue);
break;
case 44:
item.DimensionExtensionLineExtension = (pair.DoubleValue);
break;
case 45:
item.DimensionDistanceRoundingValue = (pair.DoubleValue);
break;
case 46:
item.DimensionLineExtension = (pair.DoubleValue);
break;
case 47:
item.DimensionPlusTolerance = (pair.DoubleValue);
break;
case 48:
item.DimensionMinusTolerance = (pair.DoubleValue);
break;
case 71:
item.GenerateDimensionTolerances = BoolShort(pair.ShortValue);
break;
case 72:
item.GenerateDimensionLimits = BoolShort(pair.ShortValue);
break;
case 73:
item.DimensionTextInsideHorizontal = BoolShort(pair.ShortValue);
break;
case 74:
item.DimensionTextOutsideHorizontal = BoolShort(pair.ShortValue);
break;
case 75:
item.SuppressFirstDimensionExtensionLine = BoolShort(pair.ShortValue);
break;
case 76:
item.SuppressSecondDimensionExtensionLine = BoolShort(pair.ShortValue);
break;
case 77:
item.TextAboveDimensionLine = BoolShort(pair.ShortValue);
break;
case 78:
item.DimensionUnitZeroSuppression = (DxfUnitZeroSuppression)(pair.ShortValue);
break;
case 79:
item.DimensionAngleZeroSuppression = (DxfUnitZeroSuppression)(pair.ShortValue);
break;
case 140:
item.DimensioningTextHeight = (pair.DoubleValue);
break;
case 141:
item.CenterMarkSize = (pair.DoubleValue);
break;
case 142:
item.DimensioningTickSize = (pair.DoubleValue);
break;
case 143:
item.AlternateDimensioningScaleFactor = (pair.DoubleValue);
break;
case 144:
item.DimensionLinearMeasurementScaleFactor = (pair.DoubleValue);
break;
case 145:
item.DimensionVerticalTextPosition = (pair.DoubleValue);
break;
case 146:
item.DimensionToleranceDisplaceScaleFactor = (pair.DoubleValue);
break;
case 147:
item.DimensionLineGap = (pair.DoubleValue);
break;
case 148:
item.AlternateDimensioningUnitRounding = (pair.DoubleValue);
break;
case 170:
item.UseAlternateDimensioning = BoolShort(pair.ShortValue);
break;
case 171:
item.AlternateDimensioningDecimalPlaces = (pair.ShortValue);
break;
case 172:
item.ForceDimensionLineExtensionsOutsideIfTextExists = BoolShort(pair.ShortValue);
break;
case 173:
item.UseSeparateArrowBlocksForDimensions = BoolShort(pair.ShortValue);
break;
case 174:
item.ForceDimensionTextInsideExtensions = BoolShort(pair.ShortValue);
break;
case 175:
item.SuppressOutsideExtensionDimensionLines = BoolShort(pair.ShortValue);
break;
case 176:
item.DimensionLineColor = DxfColor.FromRawValue(pair.ShortValue);
break;
case 177:
item.DimensionExtensionLineColor = DxfColor.FromRawValue(pair.ShortValue);
break;
case 178:
item.DimensionTextColor = DxfColor.FromRawValue(pair.ShortValue);
break;
case 179:
item.AngularDimensionPrecision = (pair.ShortValue);
break;
case 270:
item.DimensionUnitFormat = (DxfUnitFormat)(pair.ShortValue);
break;
case 271:
item.DimensionUnitToleranceDecimalPlaces = (pair.ShortValue);
break;
case 272:
item.DimensionToleranceDecimalPlaces = (pair.ShortValue);
break;
case 273:
item.AlternateDimensioningUnits = (DxfUnitFormat)(pair.ShortValue);
break;
case 274:
item.AlternateDimensioningToleranceDecimalPlaces = (pair.ShortValue);
break;
case 275:
item.DimensioningAngleFormat = (DxfAngleFormat)(pair.ShortValue);
break;
case 276:
item.DimensionFractionFormat = (DxfDimensionFractionFormat)(pair.ShortValue);
break;
case 277:
item.DimensionNonAngularUnits = (DxfNonAngularUnits)(pair.ShortValue);
break;
case 278:
item.DimensionDecimalSeparatorChar = (char)(pair.ShortValue);
break;
case 279:
item.DimensionTextMovementRule = (DxfDimensionTextMovementRule)(pair.ShortValue);
break;
case 280:
item.DimensionTextJustification = (DxfDimensionTextJustification)(pair.ShortValue);
break;
case 281:
item.SuppressFirstDimensionExtensionLine = BoolShort(pair.ShortValue);
break;
case 282:
item.SuppressSecondDimensionExtensionLine = BoolShort(pair.ShortValue);
break;
case 283:
item.DimensionToleranceVerticalJustification = (DxfJustification)(pair.ShortValue);
break;
case 284:
item.DimensionToleranceZeroSuppression = (DxfUnitZeroSuppression)(pair.ShortValue);
break;
case 285:
item.AlternateDimensioningZeroSupression = (DxfUnitZeroSuppression)(pair.ShortValue);
break;
case 286:
item.AlternateDimensioningToleranceZeroSupression = (DxfUnitZeroSuppression)(pair.ShortValue);
break;
case 287:
item.DimensionTextAndArrowPlacement = (DxfDimensionFit)(pair.ShortValue);
break;
case 288:
item.DimensionCursorControlsTextPosition = BoolShort(pair.ShortValue);
break;
case 289:
item.DimensionTextAndArrowPlacement = (DxfDimensionFit)(pair.ShortValue);
break;
case 340:
item.DimensionTextStyle = (pair.StringValue);
break;
case 341:
item.DimensionLeaderBlockName = (pair.StringValue);
break;
case 342:
item.ArrowBlockName = (pair.StringValue);
break;
case 343:
item.FirstArrowBlockName = (pair.StringValue);
break;
case 344:
item.SecondArrowBlockName = (pair.StringValue);
break;
case 371:
item.DimensionLineWeight = DxfLineWeight.FromRawValue(pair.ShortValue);
break;
case 372:
item.DimensionExtensionLineWeight = DxfLineWeight.FromRawValue(pair.ShortValue);
break;
case (int)DxfXDataType.ApplicationName:
item.XData = DxfXData.FromBuffer(buffer, pair.StringValue);
break;
default:
item.TrySetPair(pair);
break;
}
}
return(item);
}