private void DragDropProviderItemsControl_Drop(object sender, DragEventArgs e)
{
ViewModels.SourceGroupModel grp = GetGroupModelFromSender(sender);
if (grp == null)
{
return;
}
RadioLog.ViewModels.BaseSourceModel src = GetSourceModelFromDrop(e);
if (src == null)
{
return;
}
e.Handled = true;
if (src.SrcInfo.GroupId == GetGroupModelFromSender(sender).GroupId)
{
//could be re-ordering...
RadioLog.ViewModels.BaseSourceModel tgt = GetTargetModelFromDrop(sender, e);
if (tgt != null)
{
ViewModels.BaseSourceModel[] curModels = grp.SignalSources.ToArray();
List <ViewModels.BaseSourceModel> tmpList = new List <ViewModels.BaseSourceModel>(curModels);
if (tmpList.Contains(src) && tmpList.Contains(tgt))
{
tmpList.Remove(src);
int indx = tmpList.IndexOf(tgt);
indx = Math.Max(indx, 0);
if (indx < (tmpList.Count - 2))
{
tmpList.Insert(indx, src);
}
else
{
tmpList.Add(src);
}
for (int i = 0; i < tmpList.Count; i++)
{
tmpList[i].DisplayOrder = ((i + 1) * 10);
}
Common.AppSettings.Instance.SaveSettingsFile();
grp.SignalSources.Sort();
}
}
return;
}
src.SrcInfo.GroupId = grp.GroupId;
src.GroupInfo = grp.GroupInfo;
Common.AppSettings.Instance.SaveSettingsFile();
Common.SignalSourceGroupChangeHolder changeHolder = new Common.SignalSourceGroupChangeHolder()
{
SignalSourceId = src.SrcInfo.SourceId, NewGroupId = grp.GroupId
};
Cinch.Mediator.Instance.NotifyColleagues <Common.SignalSourceGroupChangeHolder>("SOURCE_GROUP_CHANGE", changeHolder);
}
RadioLog.ViewModels.BaseSourceModel GetSourceModelDataContext(object o)
{
FrameworkElement fe = o as FrameworkElement;
if (fe == null)
{
return(null);
}
RadioLog.ViewModels.BaseSourceModel src = fe.DataContext as RadioLog.ViewModels.BaseSourceModel;
if (src == null)
{
return(GetSourceModelDataContext(fe.Parent));
}
else
{
return(src);
}
}