public Term (Term parent, Literal after)
{
this.parent = parent;
if (parent != null) {
if (after == null)
parent.Add (this);
else
parent.SubTerms.Insert (parent.SubTerms.IndexOf (after) + 1, this);
}
}
private void HandleAttachTag (Tag tag, Term parent, Literal after)
{
InsertTerm (new Tag [] {tag}, parent, after);
}
private void HandleTermAdded (Term parent, Literal after)
{
InsertTerm (parent, after);
}
private void HandleLiteralsMoved (ArrayList literals, Term parent, Literal after)
{
preventUpdate = true;
foreach (Literal term in literals) {
Tag tag = term.Tag;
// Don't listen for it to be removed since we are
// moving it. We will update when we're done.
term.Removed -= HandleRemoved;
term.RemoveSelf ();
// Add it to where it was dropped
ArrayList groups = InsertTerm (new Tag[] {tag}, parent, after);
if (term.IsNegated)
foreach (Literal group in groups)
group.IsNegated = true;
}
preventUpdate = false;
UpdateQuery ();
}
private void Init ()
{
sepBox = null;
preview = false;
rootAdd = new Gtk.EventBox ();
rootAdd.VisibleWindow = false;
rootAdd.CanFocus = true;
rootAdd.DragMotion += HandleDragMotion;
rootAdd.DragDataReceived += HandleDragDataReceived;
rootAdd.DragLeave += HandleDragLeave;
help = new Gtk.Label ("<i>" + Catalog.GetString ("Drag tags here to search for them") + "</i>");
help.UseMarkup = true;
help.Visible = true;
rootBox = new HBox();
rootBox.Add (help);
rootBox.Show ();
rootAdd.Child = rootBox;
rootAdd.Show ();
Gtk.Drag.DestSet (rootAdd, DestDefaults.All, tag_dest_target_table,
DragAction.Copy | DragAction.Move );
PackEnd (rootAdd, true, true, 0);
rootTerm = new OrTerm (null, null);
}
private static bool AppendTerm (ArrayList parts, Term term, Tag single_tag)
{
bool tag_matches = false;
if (term != null) {
Literal literal = term as Literal;
if (literal != null) {
if (literal.Tag == single_tag)
tag_matches = true;
if (literal.IsNegated)
parts.Add (String.Format (Catalog.GetString ("Not {0}"), literal.Tag.Name));
else
parts.Add (literal.Tag.Name);
} else {
foreach (Term subterm in term.SubTerms) {
tag_matches |= AppendTerm (parts, subterm, single_tag);
}
}
}
return tag_matches;
}
public Photo [] Query(Term searchexpression, string extra_condition, DateRange range, RollSet importidrange, RatingRange ratingrange)
{
bool hide = (extra_condition == null);
// The SQL query that we want to construct is:
//
// SELECT photos.id
// photos.time
// photos.uri,
// photos.description,
// photos.roll_id,
// photos.default_version_id
// photos.rating
// FROM photos, photo_tags
// WHERE photos.time >= time1 AND photos.time <= time2
// AND photos.rating >= rat1 AND photos.rating <= rat2
// AND photos.id NOT IN (select photo_id FROM photo_tags WHERE tag_id = HIDDEN)
// AND photos.id IN (select photo_id FROM photo_tags where tag_id IN (tag1, tag2..)
// AND extra_condition_string
// GROUP BY photos.id
StringBuilder query_builder = new StringBuilder();
List <string> where_clauses = new List <string> ();
query_builder.Append("SELECT id, " +
"time, " +
"base_uri, " +
"filename, " +
"description, " +
"roll_id, " +
"default_version_id, " +
"rating " +
"FROM photos ");
if (range != null)
{
where_clauses.Add(String.Format("time >= {0} AND time <= {1}",
DateTimeUtil.FromDateTime(range.Start),
DateTimeUtil.FromDateTime(range.End)));
}
if (ratingrange != null)
{
where_clauses.Add(ratingrange.SqlClause());
}
if (importidrange != null)
{
where_clauses.Add(importidrange.SqlClause());
}
if (hide && App.Instance.Database.Tags.Hidden != null)
{
where_clauses.Add(String.Format("id NOT IN (SELECT photo_id FROM photo_tags WHERE tag_id = {0})",
App.Instance.Database.Tags.Hidden.Id));
}
if (searchexpression != null)
{
where_clauses.Add(searchexpression.SqlCondition());
}
if (extra_condition != null && extra_condition.Trim() != String.Empty)
{
where_clauses.Add(extra_condition);
}
if (where_clauses.Count > 0)
{
query_builder.Append(" WHERE ");
query_builder.Append(String.Join(" AND ", where_clauses.ToArray()));
}
query_builder.Append(" ORDER BY time");
return(Query(query_builder.ToString()));
}
public TextLiteral (Term parent, string text) : base (parent, null)
{
this.text = text;
}
public Literal (Term parent, Tag tag, Literal after) : base (parent, after) {
this.tag = tag;
}
/** Methods **/
public void Add (Term term)
{
SubTerms.Add (term);
}
public AbstractLiteral(Term parent, Literal after) : base (parent, after) {}
public OrTerm (Term parent, Literal after) : base (parent, after) {}
public static Term TermFromOperator (string op, Term parent, Literal after)
{
//Console.WriteLine ("finding type for operator {0}", op);
//op = op.Trim ();
op = op.ToLower ();
if (AndTerm.Operators.Contains (op)) {
//Console.WriteLine ("AND!");
return new AndTerm (parent, after);
} else if (OrTerm.Operators.Contains (op)) {
//Console.WriteLine ("OR!");
return new OrTerm (parent, after);
}
Console.WriteLine ("Do not have Term for operator {0}", op);
return null;
}
private void InsertTerm (Term parent, Literal after)
{
if (Literal.FocusedLiterals.Count != 0) {
HandleLiteralsMoved (Literal.FocusedLiterals, parent, after);
// Prevent them from being removed again
Literal.FocusedLiterals = null;
}
else
InsertTerm (tag_selection_widget.TagHighlight, parent, after);
}
public void Remove (Term term)
{
SubTerms.Remove (term);
// Remove ourselves if we're now empty
if (SubTerms.Count == 0)
if (Parent != null)
Parent.Remove (this);
}
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;
}
public void CopyAndInvertSubTermsFrom (Term term, bool recurse)
{
is_negated = true;
ArrayList termsToMove = new ArrayList(term.SubTerms);
foreach (Term subterm in termsToMove) {
if (recurse)
subterm.Invert(true).Parent = this;
else
subterm.Parent = this;
}
}