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

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C# / CSharp Open Source » Business Application » DC 
DC » DCSharp » GUI » FileListingView.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;
using DCSharp.Xml.FileList;

namespace DCSharp.GUI{
  public class FileListingView : ExtendedTreeView
  {
    private ActionGroup actionGroup;
    
    #region Constructors
    
    public FileListingView(TreeModel model, Identity user) : base(model)
    {
      this.user = user;
      
      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)
      };
      
      actionGroup = new ActionGroup("FileListingViewActions");
      actionGroup.Add(entries);
      
      Uim.InsertActionGroup(actionGroup, 0); 
      Uim.AddUiFromResource("FileListingView.ui");
      
      // Columns
      TreeViewColumn column;
      CellRendererText textRenderer;
      CellRendererPixbuf pixbufRenderer;
      
      // Name
      column = new TreeViewColumn();
      column.Title = Catalog.GetString("Name");
      column.SortColumnId = (int)FileListingStore.Column.Name;
      column.Resizable = true;
      column.Spacing = 3;
      AppendColumn(column);
      
      pixbufRenderer = new CellRendererPixbuf();
      column.PackStart(pixbufRenderer , false);
      column.SetCellDataFunc(pixbufRenderer, SetPixbuf);
      
      textRenderer = new CellRendererText();
      column.PackStart(textRenderer , true);
      column.AddAttribute(textRenderer, "text", (int)FileListingStore.Column.Name);
      
      // Size
      textRenderer = new CellRendererText();
      column = AppendColumn(Catalog.GetString("Size"), textRenderer,
        "text", (int)FileListingStore.Column.Size);
      column.Resizable = true;
      column.SortColumnId = (int)FileListingStore.Column.Bytes;
      
      // TTH
      textRenderer = new CellRendererText();
      textRenderer.Ellipsize = Pango.EllipsizeMode.Middle;
      column = AppendColumn(Catalog.GetString("TTH"), textRenderer,
        "text", (int)FileListingStore.Column.TTH);
      column.Expand = true;
      column.Resizable = true;
      column.SortColumnId = (int)FileListingStore.Column.TTH;
    }
    
    #endregion
    
    #region Properties
    
    public Identity User
    {
      get { return user; }
    }
    private Identity user;
    
    #endregion
    
    #region Methods
    
    public TreePath ExpandToPathString(string path)
    {
      if (path.StartsWith(new string(System.IO.Path.DirectorySeparatorChar, 1)))
      {
        path = path.Substring(1);
      }
      
      TreeIter iter;
      TreePath treePath = null;
      if (!Model.GetIterFirst(out iter))
      {
        return null;
      }
      
      int i = 0;
      string[] dirs = path.Split(System.IO.Path.DirectorySeparatorChar);
      
      bool hasIter = false;
      do
      {
        string name = Model.GetValue(iter,
          (int)FileListingStore.Column.Name) as string;
        if (name == dirs[i])
        {
          treePath = Model.GetPath(iter);
          
          // Load any child iters
          ExpandToPath(treePath);
          
          hasIter = Model.IterChildren(out iter, iter);
          if (hasIter)
          {
            i++;
            continue;
          }
          break;
        }
        hasIter = Model.IterNext(ref iter);
      }
      while (hasIter && i < dirs.Length);
      
      return treePath;
    }
    
    protected override void OnRowActivated(TreePath path,
      TreeViewColumn column)
    {
      TreeIter iter;
      if (!Model.GetIter(out iter, path))
      {
        return;
      }
      
      File file = Model.GetValue(iter,
        (int)FileListingStore.Column.Object) as File;
      if (file != null)
      {
        string filePath = System.IO.Path.Combine(BuildPath(Model, iter),
          file.Name);
        
        Download(file, filePath, Runtime.Settings.DownloadDirectory);
        return;
      }
      base.OnRowActivated(path, column);
    }
    
    #region Downloading
    
    private void Download(File file, string path, string target)
    {
      Download(file, path, target, file.Name);
    }
    
    private void Download(File file, string path, string target, string name)
    {
      SourceInfo source = new SourceInfo(user, path);
      
      DownloadFileInfo download = null;
      if (file.TTH != null)
      {
        download = Runtime.DownloadManager.GetDownload(file.TTH);
      }
      
      if (download == null)
      {
        download = new DownloadFileInfo(name, file.Size, file.TTH, target);
        download.TempTarget = download.Target;
        download.Add(source);
        
        Runtime.DownloadManager.Add(download);
      }
      else if (!download.HasSource(source))
      {
        download.Add(source);
      }
    }
    
    private void Download(Directory directory, string path, string target)
    {
      Download(directory, path, target, directory.Name);
    }
    
    private void Download(Directory directory, string path, string target,
      string name)
    {
      target = System.IO.Path.Combine(target, name);
      
      foreach (Directory childDir in directory.Directories)
      {
        Download(childDir, System.IO.Path.Combine(path, childDir.Name),
          target);
      }
      foreach (File file in directory.Files)
      {
        string filePath = System.IO.Path.Combine(path, file.Name);
        
        Download(file, filePath, target);
      }
    }
    
    private string BuildPath(TreeModel model, TreeIter iter)
    {
      TreeIter parent;
      if (model.IterParent(out parent, iter))
      {
        Directory directory = model.GetValue(parent,
          (int)FileListingStore.Column.Object) as Directory;
        if (directory != null)
        {
          return System.IO.Path.Combine(BuildPath(model, parent),
            directory.Name);
        }
      }
      return String.Empty;
    }
    
    #endregion
    
    private void SetPixbuf(TreeViewColumn column, CellRenderer renderer,
      TreeModel model, TreeIter iter)
    {
      CellRendererPixbuf pixbufRenderer = renderer as CellRendererPixbuf;
      if (pixbufRenderer != null)
      {
        object file = model.GetValue(iter, (int)FileListingStore.Column.Object);
        if (file is Directory)
        {
          pixbufRenderer.Pixbuf = RenderIcon(Stock.Directory,
            IconSize.Menu, String.Empty);
        }
        else if (file is File)
        {
          pixbufRenderer.Pixbuf = Util.GetIconFromPath((file as File).Name);
        }
      }
    }
    
    private void OnDownload(object obj, EventArgs args)
    {
      TreeIter[] iters = GetSelectedIters();
      foreach (TreeIter iter in iters)
      {
        Download(iter, Runtime.Settings.DownloadDirectory);
      }
    }
    
    private void OnSaveAs(object obj, EventArgs args)
    {
      TreeIter[] iters = GetSelectedIters();
      if (iters.Length == 1)
      {
        string name = Model.GetValue(iters[0],
          (int)FileListingStore.Column.Name) as string;
        
        string filename = SaveToDialog.GetFilename(name, Toplevel as Window);
        if (filename != null)
        {
          Download(iters[0], System.IO.Path.GetDirectoryName(filename),
            System.IO.Path.GetFileName(filename));
        }
      }
      else
      {
        string folder = SaveToDialog.GetFolder(Toplevel as Window);
        if (folder != null)
        {
          foreach (TreeIter iter in iters)
          {
            Download(iter, folder);
          }
        }
      }
    }
    
    private void Download(TreeIter iter, string target)
    {
      Download(iter, target, null);
    }
    
    private void Download(TreeIter iter, string target, string name)
    {
      Directory directory = Model.GetValue(iter,
        (int)FileListingStore.Column.Object) as Directory;
      if (directory != null)
      {
        string path = System.IO.Path.Combine(BuildPath(Model, iter),
          directory.Name);
        
        if (name != null)
        {
          Download(directory, path, target, name);
        }
        else
        {
          Download(directory, path, target);
        }
      }
      
      File file = Model.GetValue(iter,
        (int)FileListingStore.Column.Object) as File;
      if (file != null)
      {
        string path = System.IO.Path.Combine(BuildPath(Model, iter),
          file.Name);
        
        if (name != null)
        {
          Download(file, path, target, name);
        }
        else
        {
          Download(file, path, target);
        }
      }
    }
    
    #endregion
  }
}
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