routerlistwidget.h

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00001 /****************************************************************
00002  *  Vidalia is distributed under the following license:
00003  *
00004  *  Copyright (C) 2006,  Matt Edman, Justin Hipple
00005  *
00006  *  This program is free software; you can redistribute it and/or
00007  *  modify it under the terms of the GNU General Public License
00008  *  as published by the Free Software Foundation; either version 2
00009  *  of the License, or (at your option) any later version.
00010  *
00011  *  This program is distributed in the hope that it will be useful,
00012  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *  GNU General Public License for more details.
00015  *
00016  *  You should have received a copy of the GNU General Public License
00017  *  along with this program; if not, write to the Free Software
00018  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, 
00019  *  Boston, MA  02110-1301, USA.
00020  ****************************************************************/
00021 
00022 /** 
00023  * \file routerlistwidget.h
00024  * \version $Id: routerlistwidget.h 1241 2006-09-26 00:42:21Z edmanm $
00025  * \brief Displays a list of Tor servers and their status
00026  */
00027 
00028 #ifndef _ROUTERLISTWIDGET_H
00029 #define _ROUTERLISTWIDGET_H
00030 
00031 #include <QObject>
00032 #include <QHash>
00033 #include <QTreeWidget>
00034 #include <QHostAddress>
00035 #include <QKeyEvent>
00036 
00037 #include "routerlistitem.h"
00038 
00039 
00040 class RouterListWidget : public QTreeWidget
00041 {
00042   Q_OBJECT
00043   
00044 public:
00045   /** Columns in the list. */
00046   enum Columns {
00047     StatusColumn = 0,  /**< Status column, indicating bandwidth */
00048     NameColumn = 1,    /*< Router's name. */
00049     
00050   };
00051   /** Column widths. */
00052   enum ColumnWidths {
00053     StatusColumnWidth = 55 /**< Initial width of the status column. */
00054   };
00055 
00056   /** Default constructor. */
00057   RouterListWidget(QWidget *parent = 0);
00058   
00059   /** Adds a new descriptor the list. */
00060   void addRouter(RouterDescriptor rd);
00061   /** Finds the list item whose router nickname matches <b>name</b>. If more
00062    * than one router exists with given name, the first match will be
00063    * returned.  Returns 0 if not found. */
00064   RouterListItem* findRouterByName(QString name);
00065   /** Finds the list item whose key ID matches <b>id</b>. Returns 0 if not 
00066    * found. */
00067   RouterListItem* findRouterById(QString id);
00068   /** Deselects all currently selected routers. */
00069   void deselectAll();
00070 
00071 signals:
00072   /** Called when the user selects a router from the list. */
00073   void routerSelected(RouterDescriptor rd);
00074 
00075 public slots:
00076   /** Clears the list of router items. */
00077   void clearRouters();
00078   
00079 private slots:
00080   /** Called when the user clicks on an item in the list. */
00081   void onSelectionChanged();
00082 
00083 protected:
00084   /** Called when the user presses a key while the list has focus. */
00085   void keyPressEvent(QKeyEvent *event);
00086 
00087 private:
00088   /** Inserts a new item into the router list, maintaining the current order.*/
00089   void insertSorted(RouterListItem *item);
00090 
00091   /** Maps a server ID to that server's list item. */
00092   QHash<QString,RouterListItem*> _idmap;
00093 };
00094 
00095 #endif
00096 

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