/// <summary>
/// Returns the property this one is linked to.
/// </summary>
/// <param name="linkBroken">Is true if a link was found but it does not work.</param>
/// <returns>The info of the property this is linked to.</returns>
public DesignerPropertyInfo GetLinkedProperty(object obj, out bool linkBroken)
{
linkBroken = false;
if (string.IsNullOrEmpty(_linkedToProperty))
{
return(new DesignerPropertyInfo());
}
DesignerPropertyInfo dpi = DesignerProperty.GetDesignerProperty(obj.GetType(), _linkedToProperty);
// if we are linked to a DesignerNodeProperty we get the information of its assigned property
DesignerNodeProperty dnp = dpi.Attribute as DesignerNodeProperty;
if (dnp == null)
{
return(dpi);
}
Attachments.Attachment attach = (Attachments.Attachment)obj;
// check if a valid property is associated
object objvalue = dpi.Property.GetValue(obj, null);
string value = dnp.GetDisplayValue(objvalue);
if (string.IsNullOrEmpty(value) || value == Resources.DesignerNodePropertyNone)
{
linkBroken = true;
return(new DesignerPropertyInfo());
}
// return the property we are pointing at
return(DesignerProperty.GetDesignerProperty(attach.Node.GetType(), value));
}
public override void SetProperty(DesignerPropertyInfo property, object obj)
{
base.SetProperty(property, obj);
Nodes.Node node = null;
if (obj is Nodes.Node)
{
node = (Nodes.Node)obj;
}
else if (obj is Attachments.Attachment)
{
node = ((Attachments.Attachment)obj).Node;
}
else
{
throw new Exception(string.Format(Resources.ExceptionDesignerAttributeCouldNotRetrieveNode, obj));
}
string[] excludedProperties = node.GetNodePropertyExcludedProperties();
DesignerNodeProperty attribute = (DesignerNodeProperty)property.Attribute;
comboBox.Items.Add(Resources.DesignerNodePropertyNone);
IList <DesignerPropertyInfo> properties = node.GetDesignerProperties();
foreach (DesignerPropertyInfo dpi in properties)
{
bool supported = false;
// check if the property is allowed
foreach (Type supportedType in attribute.SupportedTypes)
{
if (dpi.Property.PropertyType == supportedType)
{
supported = true;
break;
}
}
// skip this property if it is not supported
if (!supported)
{
continue;
}
// check if the node denies using this property
foreach (string excludedProperty in excludedProperties)
{
if (dpi.Property.Name == excludedProperty)
{
supported = false;
break;
}
}
// skip this property if it is not supported
if (!supported)
{
continue;
}
// add the property to the list
comboBox.Items.Add(dpi.Property.Name);
}
comboBox.Text = (string)property.Property.GetValue(obj, null);
if (comboBox.Text.Length < 1)
{
comboBox.SelectedIndex = 0;
}
}