// Summary:
// Generate a default label attributes according to the GeometryType
// The default labelling property of a feature is [Name]
//
AttributeLabelClass generateDefaultLayerAttributeLable(Core.Geometry.GeometryType geometryType)
{
IS3TextSymbol textSymbol = new IS3TextSymbol();
textSymbol.Color = System.Windows.Media.Colors.Black;
AttributeLabelClass labelClass = new AttributeLabelClass();
labelClass.IsVisible = true;
labelClass.TextExpression = "[Name]";
labelClass.Symbol = textSymbol;
if (geometryType == Core.Geometry.GeometryType.Polygon)
{
labelClass.LabelPlacement = LabelPlacement.PolygonAlwaysHorizontal;
}
return(labelClass);
}
// Summary:
// Generate a label attributes according to the definition
// which is specified in the LayerDef
//
AttributeLabelClass generateLayerAttributeLable(LayerDef layerDef,
Core.Geometry.GeometryType geometryType)
{
if (layerDef == null)
{
return(generateDefaultLayerAttributeLable(geometryType));
}
IS3SymbolFont font = new IS3SymbolFont(
layerDef.LabelFontFamily, layerDef.LabelFontSize);
font.FontStyle = layerDef.LabelFontStyle;
font.FontWeight = layerDef.LabelFontWeight;
font.TextDecoration = layerDef.LabelTextDecoration;
IS3TextSymbol textSymbol = new IS3TextSymbol();
textSymbol.Color = layerDef.LabelColor;
textSymbol.Font = font;
textSymbol.BorderLineColor = layerDef.LabelBorderLineColor;
textSymbol.BorderLineSize = layerDef.LabelBorderLineWidth;
textSymbol.BackgroundColor = layerDef.LabelBackgroundColor;
AttributeLabelClass labelClass = new AttributeLabelClass();
labelClass.IsVisible = true;
labelClass.TextExpression = layerDef.LabelTextExpression;
labelClass.WhereClause = layerDef.LabelWhereClause;
labelClass.Symbol = textSymbol;
if (geometryType == Core.Geometry.GeometryType.Polygon)
{
labelClass.LabelPlacement = LabelPlacement.PolygonAlwaysHorizontal;
}
return(labelClass);
}
