public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
Dictionary<string, object> geometryHashValue = serializer.Deserialize<Dictionary<string, object>>(reader);
if (geometryHashValue == null) return null;
Geometry geometry = null;
if (geometryHashValue != null &&
geometryHashValue.ContainsKey("type") &&
geometryHashValue["type"] != null &&
geometryHashValue["type"].ToString() == "TEXT")
{
geometry = new GeometryText();
(geometry as GeometryText).Texts = geometryHashValue.ContainsKey("texts") && geometryHashValue["texts"] != null ?
JsonConvert.DeserializeObject<string[]>(geometryHashValue["texts"].ToString()) : null;
(geometry as GeometryText).TextStyle = geometryHashValue.ContainsKey("textStyle") && geometryHashValue["textStyle"] != null ?
JsonConvert.DeserializeObject<TextStyle>(geometryHashValue["textStyle"].ToString()) : null;
}
else
{
geometry = new Geometry();
}
geometry.Id = geometryHashValue.ContainsKey("id") && geometryHashValue["id"] != null ?
JsonConvert.DeserializeObject<int>(geometryHashValue["id"].ToString()) : 0;
geometry.Parts = geometryHashValue.ContainsKey("parts") && geometryHashValue["parts"] != null ?
JsonConvert.DeserializeObject<int[]>(geometryHashValue["parts"].ToString()) : null;
geometry.Points = geometryHashValue.ContainsKey("points") && geometryHashValue["points"] != null ?
JsonConvert.DeserializeObject<Point2D[]>(geometryHashValue["points"].ToString()) : null;
geometry.Style = geometryHashValue.ContainsKey("style") && geometryHashValue["style"] != null ?
JsonConvert.DeserializeObject<Style>(geometryHashValue["style"].ToString()) : null;
geometry.Type = GeometryType.UNKNOWN;
GeometryType geoType = GeometryType.UNKNOWN;
if (geometryHashValue.ContainsKey("type") &&
geometryHashValue["type"] != null)
{
geoType = (GeometryType)Enum.Parse(typeof(GeometryType), geometryHashValue["type"].ToString(), false);
geometry.Type = geoType;
}
return geometry;
}
/// <summary>
/// 拷贝的构造函数。
/// </summary>
/// <param name="geometryText">文本几何对象。</param>
public GeometryText(GeometryText geometryText)
: base(geometryText)
{
if (geometryText == null) throw new ArgumentNullException();
if (geometryText != null)
{
this.Texts = new string[geometryText.Texts.Length];
for (int i = 0; i < geometryText.Texts.Length; i++)
{
this.Texts[i] = geometryText.Texts[i];
}
}
if (geometryText.TextStyle != null)
{
this.TextStyle = new TextStyle(geometryText.TextStyle);
}
}