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Viewing changes to Do/src/Do.Core/SearchControllers/SimpleSearchContext.cs

  • Committer: Bazaar Package Importer
  • Author(s): Christopher James Halse Rogers
  • Date: 2008-09-14 10:09:40 UTC
  • mto: (0.1.8 sid)
  • mto: This revision was merged to the branch mainline in revision 7.
  • Revision ID: james.westby@ubuntu.com-20080914100940-kyghudg7py14bu2z
Tags: upstream-0.6.0.0
Import upstream version 0.6.0.0

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Do/src/Do.Core/SearchControllers/SimpleSearchContext.cs
 
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/* SimpleSearchContext.cs
 
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 *
 
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 * GNOME Do is the legal property of its developers. Please refer to the
 
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 * COPYRIGHT file distributed with this
 
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 * source distribution.
 
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 *
 
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 * This program is free software: you can redistribute it and/or modify
 
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 * it under the terms of the GNU General Public License as published by
 
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 * the Free Software Foundation, either version 3 of the License, or
 
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 * (at your option) any later version.
 
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 *
 
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 * This program is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 * GNU General Public License for more details.
 
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 *
 
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 * You should have received a copy of the GNU General Public License
 
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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 */
 
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using System;
 
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using System.Collections.Generic;
 
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using Do.Universe;
 
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using Do.UI;
 
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namespace Do.Core
 
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{
 
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        public class SimpleSearchContext : ICloneable
 
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        {
 
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                string query;
 
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                int cursor;
 
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                IObject[] results;
 
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                public SimpleSearchContext ()
 
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                {
 
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                        SecondaryCursors = new IObject[0];
 
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                        query = string.Empty;
 
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                        results = new IObject[0];
 
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                }
 
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                public SimpleSearchContext LastContext   { get; set; }
 
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                public SimpleSearchContext ParentContext { get; set; }
 
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                public IObject[] SecondaryCursors        { get; set; }
 
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                public string Query
 
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                {
 
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                        get { return query ?? query = string.Empty; }
 
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                        set { query = value; }
 
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                }
 
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                public IObject[] Results
 
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                {
 
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                        get { return results ?? results = new IObject[0]; }
 
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                        set {
 
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                                results = value ?? new IObject[0];
 
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                                cursor = 0;
 
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                                if (SecondaryCursors.Length == 0) return;
 
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                                List<IObject> secondary = new List<IObject> ();
 
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                                foreach (IObject obj in SecondaryCursors) {
 
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                                        foreach (IObject robj in Results) {
 
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                                                if (obj == robj) {
 
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                                                        secondary.Add (obj);
 
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                                                }
 
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                                        }
 
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                                }
 
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                                SecondaryCursors = secondary.ToArray ();
 
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                        }
 
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                }
 
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                public IObject Selection
 
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                {
 
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                        get {
 
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                                try {
 
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                                        return results[cursor];
 
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                                } catch {
 
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                                        return null;
 
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                                }
 
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                        }
 
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                }
 
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                public IObject[] FullSelection
 
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                {
 
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                        get {
 
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                                List<IObject> outList = new List<IObject> ();
 
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                                outList.AddRange (SecondaryCursors);
 
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                                //Juggle our selection to front to give best possible legacy plugin support.  Ideally this
 
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                                //wont matter
 
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                                outList.Remove (Selection);
 
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                                outList.Insert (0, Selection);
 
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                                return outList.ToArray ();
 
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                        }
 
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                }
 
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                public int Cursor
 
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                {
 
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                        get { return cursor; }
 
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                        set { 
 
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                                if (value > Results.Length - 1)
 
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                                        cursor = Results.Length - 1;
 
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                                else if ( value <= 0 )
 
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                                        cursor = 0;
 
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                                else
 
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                                        cursor = value;
 
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                        }
 
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                }
 
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                /// <summary>
 
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                /// Creates a new IUIContext from the current context.  Contexts however are not away if
 
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                /// the controller wishes for them to be displayed in Large Text Mode, so this value must
 
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                /// be passed in.  Parent contexts are always assumed to not use large text mode.
 
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                /// </summary>
 
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                /// <param name="textMode">
 
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                /// A <see cref="System.Boolean"/>
 
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                /// </param>
 
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                /// <returns>
 
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                /// A <see cref="IUIContext"/>
 
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                /// </returns>
 
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                public IUIContext GetIUIContext (bool textMode)
 
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                {
 
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                        if (ParentContext == null)
 
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                                return new UIContext (Selection, Results, Cursor, SecondaryCursorsToIntArray (), 
 
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                                                      Query, textMode, null);
 
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                        else
 
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                                return new UIContext (Selection, Results, Cursor, SecondaryCursorsToIntArray (), 
 
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                                                      Query, textMode, ParentContext.GetIUIContext (false));
 
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                }
 
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                /// <summary>
 
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                /// It is very convinient to convert to an int array.
 
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                /// </summary>
 
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                /// <returns>
 
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                /// A <see cref="System.Int32"/>
 
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                /// </returns>
 
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                public int[] SecondaryCursorsToIntArray () 
 
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                {
 
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                        if (SecondaryCursors.Length == 0)
 
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                                return new int[0];
 
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                        List<int> cursors = new List<int> ();
 
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                        foreach (IObject obj in SecondaryCursors) {
 
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                                for (int i = 0; i < Results.Length; i++) {
 
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                                        if (Results[i] == obj)
 
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                                                cursors.Add (i);
 
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                                }
 
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                        }
 
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                        return cursors.ToArray ();
 
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                }
 
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                public object Clone ()
 
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                {
 
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                        SimpleSearchContext clone;
 
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                        clone = new SimpleSearchContext ();
 
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                        clone.Query = query;
 
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                        clone.LastContext = LastContext;
 
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                        clone.ParentContext = ParentContext;
 
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                        clone.Cursor = Cursor;
 
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                        clone.SecondaryCursors = SecondaryCursors; //Cloning these makes no sense
 
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                        clone.Results = results.Clone () as IObject[];
 
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                        return clone;
 
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                }
 
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                public void Destroy (bool preserveParent)
 
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                {
 
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                        if (preserveParent) {
 
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                                if (LastContext != null)
 
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                                        LastContext.Destroy ();
 
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                        } else {
 
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                                Destroy ();
 
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                        }
 
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                }
 
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                public void Destroy ()
 
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                {
 
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                        if (LastContext != null)
 
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                                LastContext.Destroy ();
 
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                        if (ParentContext != null)
 
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                                ParentContext.Destroy ();
 
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                }
 
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                public override int GetHashCode ()
 
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                {
 
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                        return base.GetHashCode ();
 
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                }
 
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                public override string ToString ()
 
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                {
 
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                        return "SearchContext " + base.ToString () + 
 
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                        "\n\tQuery: \"" + query + "\"" +
 
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                        "\n\tHas last context: " + (LastContext != null) +
 
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                        "\n\tHas parent context: " + (ParentContext != null) +
 
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                        "\n\tCursor: " + cursor +
 
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                        "\n\tResults: " + results;
 
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                }
 
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        }
 
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}