SearchResultView.cs :  » Business-Application » DC » DCSharp » GUI » C# / CSharp Open Source

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C# / CSharp Open Source » Business Application » DC 
DC » DCSharp » GUI » SearchResultView.cs
/*
 * Copyright (C) 2006-2007 Eskil Bylund
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

using System;

using Gtk;
using Mono.Unix;

using DCSharp.Backend.Managers;
using DCSharp.Backend.Objects;
using DCSharp.Xml;

namespace DCSharp.GUI{
  public class SearchResultView : ExtendedTreeView
  {
    public event EventHandler SearchTTH;
    
    private ActionGroup actionGroup;
    
    #region Constructors
    
    public SearchResultView() : this(null)
    {
    }
    
    public SearchResultView(TreeModel model) : base(model)
    {
      CanActivateMultipleRows = true;
      
      // User interface
      ActionEntry[] entries = new ActionEntry[] {
        new ActionEntry("Download", null, Catalog.GetString("_Download"), null,
          Catalog.GetString("Save file"),
          OnDownload),
        new ActionEntry("SaveTo", Stock.SaveAs, Catalog.GetString("_Save To..."), null,
          Catalog.GetString("Save file to a different directory"),
          OnSaveAs),
        new ActionEntry("FileList", Stock.Directory, Catalog.GetString("_Browse Files"), null,
          Catalog.GetString("Browse the users files"),
          OnFileList),
        new ActionEntry("SearchTTH", Stock.Find, Catalog.GetString("_Find Similar Files"), null,
          Catalog.GetString("Find similar files"),
          OnSearchTTH)
      };
      
      actionGroup = new ActionGroup("SearchResultViewActions");
      actionGroup.Add(entries);
      
      Uim.InsertActionGroup(actionGroup, 0); 
      Uim.AddUiFromResource("SearchResultView.ui");
      
      actionGroup["SearchTTH"].Sensitive = false;
      
      // Columns
      TreeViewColumn column;
      CellRendererText textRenderer;
      CellRendererPixbuf pixbufRenderer;
      
      // Name
      column = new TreeViewColumn();
      column.Title = Catalog.GetString("Name");
      column.SortColumnId = (int)SearchResultStore.Column.Name;
      column.Expand = true;
      column.Resizable = true;
      column.Spacing = 3;
      AppendColumn(column);
      
      pixbufRenderer = new CellRendererPixbuf();
      column.PackStart(pixbufRenderer , false);
      column.SetCellDataFunc(pixbufRenderer, SetPixbuf);
      
      textRenderer = new CellRendererText();
      textRenderer.Ellipsize = Pango.EllipsizeMode.End;
      column.PackStart(textRenderer , true);
      column.AddAttribute(textRenderer, "text",
        (int)SearchResultStore.Column.Name);
      
      // Directory
      textRenderer = new CellRendererText();
      textRenderer.Ellipsize = Pango.EllipsizeMode.Middle;
      column = AppendColumn(Catalog.GetString("Directory"), textRenderer,
        "text", (int)SearchResultStore.Column.Directory);
      column.Expand = true;
      column.Resizable = true;
      column.SortColumnId = (int)SearchResultStore.Column.Directory;
      
      // Size
      textRenderer = new CellRendererText();
      column = AppendColumn(Catalog.GetString("Size"), textRenderer,
        "text", (int)SearchResultStore.Column.Size);
      column.SortColumnId = (int)SearchResultStore.Column.Bytes;
      
      // User
      textRenderer = new CellRendererText();
      textRenderer.Ellipsize = Pango.EllipsizeMode.End;
      column = AppendColumn(Catalog.GetString("User"), textRenderer,
        "text", (int)SearchResultStore.Column.User);
      column.Expand = true;
      column.Resizable = true;
      column.SortColumnId = (int)SearchResultStore.Column.User;
      
      // Slots
      textRenderer = new CellRendererText();
      column = AppendColumn(Catalog.GetString("Slots"), textRenderer,
        "text", (int)SearchResultStore.Column.Slots);
      column.SortColumnId = (int)SearchResultStore.Column.FreeSlots;
      
      // Connection
      textRenderer = new CellRendererText();
      column = AppendColumn(Catalog.GetString("Connection"), textRenderer, "text",
        (int)SearchResultStore.Column.Connection);
      column.SortColumnId = (int)SearchResultStore.Column.Connection;
      
      // TTH
      textRenderer = new CellRendererText();
      textRenderer.Ellipsize = Pango.EllipsizeMode.Middle;
      column = AppendColumn(Catalog.GetString("TTH"), textRenderer,
        "text", (int)SearchResultStore.Column.TTH);
      column.Expand = true;
      column.Resizable = true;
      column.SortColumnId = (int)SearchResultStore.Column.TTH;
    }
    
    #endregion
    
    #region Methods
    
    protected override void OnRowActivated(TreePath path,
      TreeViewColumn column)
    {
      TreeIter iter;
      if (Model.GetIter(out iter, path))
      {
        SearchResult result = Model.GetValue(iter,
          (int)SearchResultStore.Column.Object) as SearchResult;
        if (result != null)
        {
          Download(result);
          return;
        }
      }
      base.OnRowActivated(path, column);
    }
    
    protected override void OnPopulatePopup(Menu menu)
    {
      bool canDownload = false;
      
      object[] results = GetSelectedObjects((int)SearchResultStore.Column.Object);
      foreach (SearchResult result in results)
      {
        if (result.Type == ResultType.File)
        {
          canDownload = true;
        }
      }
      actionGroup["Download"].Sensitive = canDownload;
      
      base.OnPopulatePopup(menu);
    }
    
    private void Download(SearchResult result)
    {
      Download(result, Util.GetFile(result.Path),
        Runtime.Settings.DownloadDirectory);
    }
    
    private void Download(SearchResult result, string name, string target)
    {
      if (result != null && result.Type == ResultType.File)
      {
        SourceInfo source = new SourceInfo(result.User, result.Path);
        
        DownloadFileInfo download = null;
        if (result.TTH != null)
        {
          download = Runtime.DownloadManager.GetDownload(result.TTH);
        }
        
        if (download == null)
        {
          download = new DownloadFileInfo(name, result.Size, result.TTH, target);
          download.TempTarget = download.Target;
          download.Add(source);
          
          Runtime.DownloadManager.Add(download);
        }
        else if (!download.HasSource(source))
        {
          download.Add(source);
        }
      }
    }
    
    private void SetPixbuf(TreeViewColumn column, CellRenderer renderer,
      TreeModel model, TreeIter iter)
    {
      CellRendererPixbuf pixbufRenderer = renderer as CellRendererPixbuf;
      SearchResult result = model.GetValue(iter,
        (int)SearchResultStore.Column.Object) as SearchResult;
      
      if (result != null && pixbufRenderer != null)
      {
        if (result.Type == ResultType.Directory)
        {
          pixbufRenderer.Pixbuf = RenderIcon(Stock.Directory,
            IconSize.Menu, String.Empty);
        }
        else
        {
          pixbufRenderer.Pixbuf = Util.GetIconFromPath(result.Path);
        }
      }
    }
    
    private void OnDownload(object obj, EventArgs args)
    {
      TreePath[] paths = Selection.GetSelectedRows();
      foreach (TreePath path in paths)
      {
        ActivateRow(path, Columns[0]);
      }
    }
    
    private void OnSaveAs(object obj, EventArgs args)
    {
      object[] results = GetSelectedObjects((int)SearchResultStore.Column.Object);
      if (results.Length == 1)
      {
        SearchResult result = results[0] as SearchResult;
        string filename = SaveToDialog.GetFilename(Util.GetFile(result.Path),
          Toplevel as Window);
        if (filename != null)
        {
          Download(result, System.IO.Path.GetFileName(filename),
            System.IO.Path.GetDirectoryName(filename));
        }
      }
      else
      {
        string folder = SaveToDialog.GetFolder(Toplevel as Window);
        if (folder != null)
        {
          foreach (SearchResult result in results)
          {
            Download(result, Util.GetFile(result.Path), folder);
          }
        }
      }
    }
  
    private void OnFileList(object obj, EventArgs args)
    {
      object[] results = GetSelectedObjects((int)SearchResultStore.Column.Object);
      foreach (SearchResult result in results)
      {
        Util.RequestFileList(result.User, result.Path);
      }
    }
    
    private void OnSearchTTH(object obj, EventArgs args)
    {
      if (SearchTTH != null)
      {
        SearchTTH(this, EventArgs.Empty);
      }
    }
    
    #endregion
  }
}
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