/** Handlers **/
// When the user edits a tag (it's icon, name, etc) we get called
// and update the images/text in the query as needed to reflect the changes.
private void HandleTagChanged(object sender, DbItemEventArgs <Tag> args)
{
foreach (Tag t in args.Items)
{
foreach (Literal term in rootTerm.FindByTag(t))
{
term.Update();
}
}
}
public List <Literal> InsertTerm(Tag [] tags, Term parent, Literal after)
{
int position;
if (after != null)
{
position = WidgetPosition(after.Widget) + 1;
}
else
{
position = Children.Length - 1;
}
List <Literal> added = new List <Literal>();
foreach (Tag tag in tags)
{
//Console.WriteLine ("Adding tag {0}", tag.Name);
// Don't put a tag into a Term twice
if (parent != Root && (parent.FindByTag(tag, true)).Count > 0)
{
continue;
}
if (parent.Count > 0)
{
Widget sep = parent.SeparatorWidget();
InsertWidget(position, sep);
position++;
}
// Encapsulate new OR terms within a new AND term of which they are the
// only member, so later other terms can be AND'd with them
//
// TODO should really see what type of term the parent is, and
// encapsulate this term in a term of the opposite type. This will
// allow the query system to be expanded to work for multiple levels much easier.
if (parent == rootTerm)
{
parent = new AndTerm(rootTerm, after);
after = null;
}
Literal term = new Literal(parent, tag, after);
term.TagsAdded += HandleTagsAdded;
term.LiteralsMoved += HandleLiteralsMoved;
term.AttachTag += HandleAttachTag;
term.NegatedToggled += HandleNegated;
term.Removing += HandleRemoving;
term.Removed += HandleRemoved;
term.RequireTag += Require;
term.UnRequireTag += UnRequire;
added.Add(term);
// Insert this widget into the appropriate place in the hbox
InsertWidget(position, term.Widget);
}
UpdateQuery();
return(added);
}
public ArrayList InsertTerm (Tag [] tags, Term parent, Literal after)
{
int position;
if (after != null)
position = WidgetPosition (after.Widget) + 1;
else
position = Children.Length - 1;
ArrayList added = new ArrayList ();
foreach (Tag tag in tags) {
//Console.WriteLine ("Adding tag {0}", tag.Name);
// Don't put a tag into a Term twice
if (parent != Root && (parent.FindByTag (tag, true)).Count > 0)
continue;
if (parent.Count > 0) {
Widget sep = parent.SeparatorWidget ();
InsertWidget (position, sep);
position++;
}
// Encapsulate new OR terms within a new AND term of which they are the
// only member, so later other terms can be AND'd with them
//
// TODO should really see what type of term the parent is, and
// encapsulate this term in a term of the opposite type. This will
// allow the query system to be expanded to work for multiple levels much easier.
if (parent == rootTerm) {
parent = new AndTerm (rootTerm, after);
after = null;
}
Literal term = new Literal (parent, tag, after);
term.TermAdded += HandleTermAdded;
term.LiteralsMoved += HandleLiteralsMoved;
term.AttachTag += HandleAttachTag;
term.NegatedToggled += HandleNegated;
term.Removing += HandleRemoving;
term.Removed += HandleRemoved;
term.RequireTag += Require;
term.UnRequireTag += UnRequire;
added.Add (term);
// Insert this widget into the appropriate place in the hbox
InsertWidget (position, term.Widget);
}
UpdateQuery ();
return added;
}