/// <summary>
/// フィルタクラスタを新しいクラスタに結合します。(AND結合)
/// </summary>
public static FilterCluster Restrict(this FilterCluster original, params FilterCluster[] append)
{
var cluster = new FilterCluster();
cluster.ConcatenateAnd = true;
cluster.Filters = new[] { original }.Concat(append).ToArray();
return(cluster.Optimize());
}
public FilterCluster GetOnlyForUserFilter()
{
var nfc = new FilterCluster();
nfc.ConcatenateAnd = this.ConcatenateAnd;
nfc.Negate = this.Negate;
nfc.Filters = _filters
.OfType <IUserFilter>()
.Select(f => f is FilterCluster ? ((FilterCluster)f).GetOnlyForUserFilter() : f)
.ToArray();
return(nfc);
}
public static FilterCluster GetParent(this IFilter filterObject, FilterCluster root)
{
if (root.Filters.Contains(filterObject))
{
return(root);
}
else
{
return(root.Filters
.OfType <FilterCluster>()
.Select(f => GetParent(f, root))
.Where(f => f != null)
.FirstOrDefault());
}
}
/// <summary>
/// フィルタクラスタにフィルタを結合します。
/// </summary>
public static FilterCluster Join(this FilterCluster cluster, FilterBase filter, bool concatAnd = false)
{
var newCluster = new FilterCluster();
if (cluster != null)
{
newCluster.Filters = new IFilter[] { cluster, filter }
}
;
else
{
newCluster.Filters = new IFilter[] { filter }
};
newCluster.ConcatenateAnd = concatAnd;
return(newCluster.Optimize());
}
private void ClickUserIcon()
{
var user = TwitterHelper.GetSuggestedUser(this.Tweet);
if (Keyboard.Modifiers.HasFlag(ModifierKeys.Alt))
{
var cluster = new FilterCluster(){
ConcatenateAnd = false,
Negate = false,
Filters = this.Parent.TabProperty.TweetSources.ToArray()};
this.Parent.TabProperty.TweetSources = new[]{ cluster.Restrict(new FilterCluster(){ ConcatenateAnd = false, Negate = true, Filters = new[]{ new FilterUserId(user.NumericId) }}).Optimize()}.ToArray();
Task.Factory.StartNew(() => this.Parent.BaseTimeline.CoreViewModel.InvalidateCache());
}
else
{
var filter = new[] { new FilterUserId(user.NumericId) };
var desc = "@" + user.ScreenName;
switch (Setting.Instance.TimelineExperienceProperty.UserExtractTransition)
{
case TransitionMethod.ViewStack:
this.Parent.AddTopTimeline(filter);
break;
case TransitionMethod.AddTab:
this.Parent.Parent.AddTab(new Configuration.Tabs.TabProperty() { Name = desc, TweetSources = filter });
break;
case TransitionMethod.AddColumn:
var column = this.Parent.Parent.Parent.CreateColumn();
column.AddTab(new Configuration.Tabs.TabProperty() { Name = desc, TweetSources = filter });
break;
}
}
}
public FilterCluster GetOnlyForUserFilter()
{
var nfc = new FilterCluster();
nfc.ConcatenateAnd = this.ConcatenateAnd;
nfc.Negate = this.Negate;
nfc.Filters = _filters
.OfType<IUserFilter>()
.Select(f => f is FilterCluster ? ((FilterCluster)f).GetOnlyForUserFilter() : f)
.ToArray();
return nfc;
}
public static FilterCluster Copy(this FilterCluster cluster)
{
return(QueryCompiler.ToFilter(cluster.ToQuery()));
}
/// <summary>
/// フィルタを簡易化します。
/// </summary>
public static FilterCluster Optimize(this FilterCluster cluster)
{
return(QueryCompiler.Optimize(cluster));
}
