690 lines
25 KiB
C++
Executable file
690 lines
25 KiB
C++
Executable file
/******************************************************************************\
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* Copyright (c) 2004-2016
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*
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* Author(s):
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* Volker Fischer
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*
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******************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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\******************************************************************************/
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#include "connectdlg.h"
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/* Implementation *************************************************************/
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CConnectDlg::CConnectDlg ( const bool bNewShowCompleteRegList,
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QWidget* parent,
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Qt::WindowFlags f )
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: QDialog ( parent, f ),
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strCentralServerAddress ( "" ),
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strSelectedAddress ( "" ),
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strSelectedServerName ( "" ),
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bShowCompleteRegList ( bNewShowCompleteRegList ),
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bServerListReceived ( false ),
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bServerListItemWasChosen ( false )
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{
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setupUi ( this );
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// Add help text to controls -----------------------------------------------
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// server list
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lvwServers->setWhatsThis ( tr ( "<b>Server List:</b> The server list shows "
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"a list of available servers which are registered at the central "
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"server. Select a server from the list and press the connect button to "
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"connect to this server. Alternatively, double click a server from "
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"the list to connect to it. If a server is occupied, a list of the "
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"connected musicians is available by expanding the list item. "
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"Permanent servers are shown in bold font.<br>"
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"Note that it may take some time to retrieve the server list from the "
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"central server. If no valid central server address is specified in "
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"the settings, no server list will be available." ) );
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lvwServers->setAccessibleName ( tr ( "Server list view" ) );
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// server address
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QString strServAddrH = tr ( "<b>Server Address:</b> The IP address or URL "
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"of the server running the " ) + APP_NAME + tr ( " server software "
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"must be set here. An optional port number can be added after the IP "
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"address or URL using a comma as a separator, e.g, <i>"
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"example.org:" ) +
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QString().setNum ( LLCON_DEFAULT_PORT_NUMBER ) + tr ( "</i>. A list of "
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"the most recent used server IP addresses or URLs is available for "
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"selection." );
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lblServerAddr->setWhatsThis ( strServAddrH );
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cbxServerAddr->setWhatsThis ( strServAddrH );
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cbxServerAddr->setAccessibleName ( tr ( "Server address edit box" ) );
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cbxServerAddr->setAccessibleDescription ( tr ( "Holds the current server "
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"IP address or URL. It also stores old URLs in the combo box list." ) );
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// init server address combo box (max MAX_NUM_SERVER_ADDR_ITEMS entries)
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cbxServerAddr->setMaxCount ( MAX_NUM_SERVER_ADDR_ITEMS );
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cbxServerAddr->setInsertPolicy ( QComboBox::NoInsert );
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// set up list view for connected clients (note that the last column size
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// must not be specified since this column takes all the remaining space)
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#ifdef ANDROID
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// for Android we need larger numbers because of the default font size
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lvwServers->setColumnWidth ( 0, 200 );
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lvwServers->setColumnWidth ( 1, 130 );
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lvwServers->setColumnWidth ( 2, 100 );
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#else
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lvwServers->setColumnWidth ( 0, 180 );
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lvwServers->setColumnWidth ( 1, 65 );
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lvwServers->setColumnWidth ( 2, 60 );
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#endif
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lvwServers->clear();
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// add invisible columns which are used for sorting the list and storing
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// the current/maximum number of clients
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// 0: server name
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// 1: ping time
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// 2: number of musicians (including additional strings like " (full)")
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// 3: location
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// 4: minimum ping time (invisible)
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// 5: maximum number of clients (invisible)
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// 6: number of musicians (just the number, invisible)
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lvwServers->setColumnCount ( 7 );
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lvwServers->hideColumn ( 4 );
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lvwServers->hideColumn ( 5 );
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lvwServers->hideColumn ( 6 );
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// per default the root shall not be decorated (to save space)
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lvwServers->setRootIsDecorated ( false );
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// make sure the connect button has the focus
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butConnect->setFocus();
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#ifdef ANDROID
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// for the android version maximize the window
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setWindowState ( Qt::WindowMaximized );
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#endif
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// Connections -------------------------------------------------------------
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// list view
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QObject::connect ( lvwServers,
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SIGNAL ( itemSelectionChanged() ),
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this, SLOT ( OnServerListItemSelectionChanged() ) );
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QObject::connect ( lvwServers,
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SIGNAL ( itemDoubleClicked ( QTreeWidgetItem*, int ) ),
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this, SLOT ( OnServerListItemDoubleClicked ( QTreeWidgetItem*, int ) ) );
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QObject::connect ( lvwServers, // to get default return key behaviour working
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SIGNAL ( activated ( QModelIndex ) ),
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this, SLOT ( OnConnectClicked() ) );
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// combo boxes
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QObject::connect ( cbxServerAddr, SIGNAL ( editTextChanged ( const QString& ) ),
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this, SLOT ( OnServerAddrEditTextChanged ( const QString& ) ) );
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// buttons
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QObject::connect ( butCancel, SIGNAL ( clicked() ),
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this, SLOT ( close() ) );
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QObject::connect ( butConnect, SIGNAL ( clicked() ),
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this, SLOT ( OnConnectClicked() ) );
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// timers
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QObject::connect ( &TimerPing, SIGNAL ( timeout() ),
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this, SLOT ( OnTimerPing() ) );
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QObject::connect ( &TimerReRequestServList, SIGNAL ( timeout() ),
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this, SLOT ( OnTimerReRequestServList() ) );
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}
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void CConnectDlg::Init ( const QString strNewCentralServerAddr,
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const CVector<QString>& vstrIPAddresses )
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{
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// take central server address string
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strCentralServerAddress = strNewCentralServerAddr;
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// load stored IP addresses in combo box
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cbxServerAddr->clear();
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cbxServerAddr->clearEditText();
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for ( int iLEIdx = 0; iLEIdx < MAX_NUM_SERVER_ADDR_ITEMS; iLEIdx++ )
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{
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if ( !vstrIPAddresses[iLEIdx].isEmpty() )
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{
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cbxServerAddr->addItem ( vstrIPAddresses[iLEIdx] );
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}
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}
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}
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void CConnectDlg::showEvent ( QShowEvent* )
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{
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// reset flags (on opening the connect dialg, we always want to request a
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// new updated server list per definition)
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bServerListReceived = false;
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bServerListItemWasChosen = false;
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// clear current address and name
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strSelectedAddress = "";
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strSelectedServerName = "";
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// clear server list view
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lvwServers->clear();
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// get the IP address of the central server (using the ParseNetworAddress
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// function) when the connect dialog is opened, this seems to be the correct
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// time to do it
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if ( NetworkUtil().ParseNetworkAddress ( strCentralServerAddress,
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CentralServerAddress ) )
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{
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// send the request for the server list
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emit ReqServerListQuery ( CentralServerAddress );
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// start timer, if this message did not get any respond to retransmit
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// the server list request message
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TimerReRequestServList.start ( SERV_LIST_REQ_UPDATE_TIME_MS );
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}
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}
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void CConnectDlg::hideEvent ( QHideEvent* )
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{
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// if window is closed, stop timers
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TimerPing.stop();
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TimerReRequestServList.stop();
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}
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void CConnectDlg::OnTimerReRequestServList()
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{
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// if the server list is not yet received, retransmit the request for the
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// server list
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if ( !bServerListReceived )
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{
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emit ReqServerListQuery ( CentralServerAddress );
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}
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}
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void CConnectDlg::SetServerList ( const CHostAddress& InetAddr,
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const CVector<CServerInfo>& vecServerInfo )
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{
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// set flag and disable timer for resend server list request
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bServerListReceived = true;
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TimerReRequestServList.stop();
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// first clear list
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lvwServers->clear();
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// add list item for each server in the server list
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const int iServerInfoLen = vecServerInfo.Size();
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for ( int iIdx = 0; iIdx < iServerInfoLen; iIdx++ )
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{
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// get the host address, note that for the very first entry which is
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// the central server, we have to use the receive host address
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// instead
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CHostAddress CurHostAddress;
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if ( iIdx > 0 )
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{
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CurHostAddress = vecServerInfo[iIdx].HostAddr;
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}
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else
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{
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// substitude the receive host address for central server
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CurHostAddress = InetAddr;
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}
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// create new list view item
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QTreeWidgetItem* pNewListViewItem = new QTreeWidgetItem ( lvwServers );
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// make the entry invisible (will be set to visible on successful ping
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// result) if the complete list of registered servers shall not be shown
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if ( !bShowCompleteRegList )
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{
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pNewListViewItem->setHidden ( true );
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}
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// server name (if empty, show host address instead)
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if ( !vecServerInfo[iIdx].strName.isEmpty() )
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{
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pNewListViewItem->setText ( 0, vecServerInfo[iIdx].strName );
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}
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else
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{
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// IP address and port (use IP number without last byte)
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// Definition: If the port number is the default port number, we do
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// not show it.
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if ( vecServerInfo[iIdx].HostAddr.iPort == LLCON_DEFAULT_PORT_NUMBER )
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{
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// only show IP number, no port number
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pNewListViewItem->setText ( 0, CurHostAddress.
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toString ( CHostAddress::SM_IP_NO_LAST_BYTE ) );
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}
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else
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{
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// show IP number and port
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pNewListViewItem->setText ( 0, CurHostAddress.
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toString ( CHostAddress::SM_IP_NO_LAST_BYTE_PORT ) );
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}
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}
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// show server name in bold font if it is a permanent server
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QFont CurServerNameFont = pNewListViewItem->font ( 0 );
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CurServerNameFont.setBold ( vecServerInfo[iIdx].bPermanentOnline );
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pNewListViewItem->setFont ( 0, CurServerNameFont );
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// the ping time shall be shown in bold font
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QFont CurPingTimeFont = pNewListViewItem->font ( 1 );
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CurPingTimeFont.setBold ( true );
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pNewListViewItem->setFont ( 1, CurPingTimeFont );
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// server location (city and country)
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QString strLocation = vecServerInfo[iIdx].strCity;
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if ( ( !strLocation.isEmpty() ) &&
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( vecServerInfo[iIdx].eCountry != QLocale::AnyCountry ) )
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{
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strLocation += ", ";
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}
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if ( vecServerInfo[iIdx].eCountry != QLocale::AnyCountry )
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{
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strLocation +=
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QLocale::countryToString ( vecServerInfo[iIdx].eCountry );
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}
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// for debugging, plot address infos in connect dialog
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// Do not enable this for official versions!
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#if 0
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strLocation += ", " + vecServerInfo[iIdx].HostAddr.InetAddr.toString() +
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":" + QString().setNum ( vecServerInfo[iIdx].HostAddr.iPort ) +
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", perm: " + QString().setNum ( vecServerInfo[iIdx].bPermanentOnline );
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#endif
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pNewListViewItem->setText ( 3, strLocation );
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// init the minimum ping time with a large number (note that this number
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// must fit in an integer type)
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pNewListViewItem->setText ( 4, "99999999" );
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// store the maximum number of clients
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pNewListViewItem->setText ( 5, QString().setNum ( vecServerInfo[iIdx].iMaxNumClients ) );
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// initialize the current number of connected clients
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pNewListViewItem->setText ( 6, QString().setNum ( 0 ) );
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// store host address
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pNewListViewItem->setData ( 0, Qt::UserRole,
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CurHostAddress.toString() );
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}
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// immediately issue the ping measurements and start the ping timer since
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// the server list is filled now
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OnTimerPing();
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TimerPing.start ( PING_UPDATE_TIME_SERVER_LIST_MS );
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}
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void CConnectDlg::SetConnClientsList ( const CHostAddress& InetAddr,
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const CVector<CChannelInfo>& vecChanInfo )
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{
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// find the server with the correct address
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QTreeWidgetItem* pCurListViewItem = FindListViewItem ( InetAddr );
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if ( pCurListViewItem )
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{
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// first remove any existing childs
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DeleteAllListViewItemChilds ( pCurListViewItem );
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// get number of connected clients
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const int iNumConnectedClients = vecChanInfo.Size();
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for ( int i = 0; i < iNumConnectedClients; i++ )
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{
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// create new list view item
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QTreeWidgetItem* pNewChildListViewItem =
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new QTreeWidgetItem ( pCurListViewItem );
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// child items shall use only one column
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pNewChildListViewItem->setFirstColumnSpanned ( true );
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// set the clients name
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QString sClientText = vecChanInfo[i].GenNameForDisplay();
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// set the icon: country flag has priority over instrument
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bool bCountryFlagIsUsed = false;
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if ( vecChanInfo[i].eCountry != QLocale::AnyCountry )
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{
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// try to load the country flag icon
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QPixmap CountryFlagPixmap (
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CCountyFlagIcons::GetResourceReference ( vecChanInfo[i].eCountry ) );
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// first check if resource reference was valid
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if ( !CountryFlagPixmap.isNull() )
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{
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// set correct picture
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pNewChildListViewItem->setIcon ( 0, QIcon ( CountryFlagPixmap ) );
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// add the instrument information as text
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if ( !CInstPictures::IsNotUsedInstrument ( vecChanInfo[i].iInstrument ) )
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{
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sClientText.append ( " (" +
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CInstPictures::GetName ( vecChanInfo[i].iInstrument ) + ")" );
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}
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bCountryFlagIsUsed = true;
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}
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}
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if ( !bCountryFlagIsUsed )
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{
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// get the resource reference string for this instrument
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const QString strCurResourceRef =
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CInstPictures::GetResourceReference ( vecChanInfo[i].iInstrument );
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// first check if instrument picture is used or not and if it is valid
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if ( !( CInstPictures::IsNotUsedInstrument ( vecChanInfo[i].iInstrument ) ||
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strCurResourceRef.isEmpty() ) )
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{
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// set correct picture
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pNewChildListViewItem->setIcon ( 0, QIcon ( QPixmap ( strCurResourceRef ) ) );
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}
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}
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// apply the client text to the list view item
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pNewChildListViewItem->setText ( 0, sClientText );
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// add the new child to the corresponding server item
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pCurListViewItem->addChild ( pNewChildListViewItem );
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// at least one server has childs now, show decoration to be able
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// to show the childs
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lvwServers->setRootIsDecorated ( true );
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}
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}
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}
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void CConnectDlg::OnServerListItemSelectionChanged()
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{
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// get current selected item (we are only interested in the first selcted
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// item)
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QList<QTreeWidgetItem*> CurSelListItemList = lvwServers->selectedItems();
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// if an item is clicked/selected, copy the server name to the combo box
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if ( CurSelListItemList.count() > 0 )
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{
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// make sure no signals are send when we change the text
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cbxServerAddr->blockSignals ( true );
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{
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cbxServerAddr->setEditText (
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GetParentListViewItem ( CurSelListItemList[0] )->text ( 0 ) );
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}
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cbxServerAddr->blockSignals ( false );
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}
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}
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void CConnectDlg::OnServerListItemDoubleClicked ( QTreeWidgetItem* Item,
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int )
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{
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// if a server list item was double clicked, it is the same as if the
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// connect button was clicked
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if ( Item != 0 )
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{
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OnConnectClicked();
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}
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}
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void CConnectDlg::OnServerAddrEditTextChanged ( const QString& )
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{
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// in the server address combo box, a text was changed, remove selection
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// in the server list (if any)
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lvwServers->clearSelection();
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}
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void CConnectDlg::OnConnectClicked()
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{
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// get the IP address to be used according to the following definitions:
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// - if the list has focus and a line is selected, use this line
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// - if the list has no focus, use the current combo box text
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QList<QTreeWidgetItem*> CurSelListItemList = lvwServers->selectedItems();
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if ( CurSelListItemList.count() > 0 )
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{
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// get the parent list view item
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QTreeWidgetItem* pCurSelTopListItem =
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GetParentListViewItem ( CurSelListItemList[0] );
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// get host address from selected list view item as a string
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strSelectedAddress =
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pCurSelTopListItem->data ( 0, Qt::UserRole ).toString();
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// store selected server name
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strSelectedServerName = pCurSelTopListItem->text ( 0 );
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// set flag that a server list item was chosen to connect
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bServerListItemWasChosen = true;
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}
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else
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{
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strSelectedAddress = cbxServerAddr->currentText();
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}
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// tell the parent window that the connection shall be initiated
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done ( QDialog::Accepted );
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}
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void CConnectDlg::OnTimerPing()
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{
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// send ping messages to the servers in the list
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const int iServerListLen = lvwServers->topLevelItemCount();
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for ( int iIdx = 0; iIdx < iServerListLen; iIdx++ )
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{
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CHostAddress CurServerAddress;
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// try to parse host address string which is stored as user data
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// in the server list item GUI control element
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if ( NetworkUtil().ParseNetworkAddress (
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lvwServers->topLevelItem ( iIdx )->
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data ( 0, Qt::UserRole ).toString(),
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CurServerAddress ) )
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{
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// if address is valid, send ping or the version and OS request
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#ifdef ENABLE_CLIENT_VERSION_AND_OS_DEBUGGING
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emit CreateCLServerListReqVerAndOSMes ( CurServerAddress );
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#else
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emit CreateCLServerListPingMes ( CurServerAddress );
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#endif
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// check if the number of child list items matches the number of
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// connected clients, if not then request the client names
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if ( lvwServers->topLevelItem ( iIdx )->text ( 6 ).toInt() !=
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lvwServers->topLevelItem ( iIdx )->childCount() )
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{
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emit CreateCLServerListReqConnClientsListMes ( CurServerAddress );
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}
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}
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}
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}
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void CConnectDlg::SetPingTimeAndNumClientsResult ( CHostAddress& InetAddr,
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const int iPingTime,
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const CMultiColorLED::ELightColor ePingTimeLEDColor,
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const int iNumClients )
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{
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// apply the received ping time to the correct server list entry
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QTreeWidgetItem* pCurListViewItem = FindListViewItem ( InetAddr );
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if ( pCurListViewItem )
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{
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// update the color of the ping time font
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switch ( ePingTimeLEDColor )
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{
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case CMultiColorLED::RL_GREEN:
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pCurListViewItem->setTextColor ( 1, Qt::darkGreen );
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break;
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case CMultiColorLED::RL_YELLOW:
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pCurListViewItem->setTextColor ( 1, Qt::darkYellow );
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break;
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default: // including "CMultiColorLED::RL_RED"
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pCurListViewItem->setTextColor ( 1, Qt::red );
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break;
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}
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// update ping text, take special care if ping time exceeds a
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// certain value
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if ( iPingTime > 500 )
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{
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pCurListViewItem->setText ( 1, ">500 ms" );
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}
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else
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{
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pCurListViewItem->
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setText ( 1, QString().setNum ( iPingTime ) + " ms" );
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}
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// update number of clients text
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if ( iNumClients >= pCurListViewItem->text ( 5 ).toInt() )
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{
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pCurListViewItem->
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setText ( 2, QString().setNum ( iNumClients ) + " (full)" );
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}
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else
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{
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pCurListViewItem->
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setText ( 2, QString().setNum ( iNumClients ) );
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}
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// update number of clients value (hidden)
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pCurListViewItem->setText ( 6, QString().setNum ( iNumClients ) );
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// a ping time was received, set item to visible (note that we have
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// to check if the item is hidden, otherwise we get a lot of CPU
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// usage by calling "setHidden(false)" even if the item was already
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// visible)
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if ( pCurListViewItem->isHidden() )
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{
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pCurListViewItem->setHidden ( false );
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}
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// update minimum ping time column (invisible, used for sorting) if
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// the new value is smaller than the old value
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if ( pCurListViewItem->text ( 4 ).toInt() > iPingTime )
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{
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// we pad to a total of 8 characters with zeros to make sure the
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// sorting is done correctly
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pCurListViewItem->setText ( 4, QString ( "%1" ).arg (
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iPingTime, 8, 10, QLatin1Char ( '0' ) ) );
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// Update the sorting (lowest number on top).
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// Note that the sorting must be the last action for the current
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// item since the topLevelItem ( iIdx ) is then no longer valid.
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lvwServers->sortByColumn ( 4, Qt::AscendingOrder );
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}
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}
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// if no server item has childs, do not show decoration
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bool bAnyListItemHasChilds = false;
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const int iServerListLen = lvwServers->topLevelItemCount();
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for ( int iIdx = 0; iIdx < iServerListLen; iIdx++ )
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{
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// check if the current list item has childs
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if ( lvwServers->topLevelItem ( iIdx )->childCount() > 0 )
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{
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bAnyListItemHasChilds = true;
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}
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}
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if ( !bAnyListItemHasChilds )
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{
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lvwServers->setRootIsDecorated ( false );
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}
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}
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QTreeWidgetItem* CConnectDlg::FindListViewItem ( const CHostAddress& InetAddr )
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{
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const int iServerListLen = lvwServers->topLevelItemCount();
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for ( int iIdx = 0; iIdx < iServerListLen; iIdx++ )
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{
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// compare the received address with the user data string of the
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// host address by a string compare
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if ( !lvwServers->topLevelItem ( iIdx )->
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data ( 0, Qt::UserRole ).toString().
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compare ( InetAddr.toString() ) )
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{
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return lvwServers->topLevelItem ( iIdx );
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}
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}
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return NULL;
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}
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QTreeWidgetItem* CConnectDlg::GetParentListViewItem ( QTreeWidgetItem* pItem )
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{
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// check if the current item is already the top item, i.e. the parent
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// query fails and returns null
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if ( pItem->parent() )
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{
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// we only have maximum one level, i.e. if we call the parent function
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// we are at the top item
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return pItem->parent();
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}
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else
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{
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// this item is already the top item
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return pItem;
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}
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}
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void CConnectDlg::DeleteAllListViewItemChilds ( QTreeWidgetItem* pItem )
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{
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// loop over all childs
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while ( pItem->childCount() > 0 )
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{
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// get the first child in the list
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QTreeWidgetItem* pCurChildItem = pItem->child ( 0 );
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// remove it from the item (note that the object is not deleted)
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pItem->removeChild ( pCurChildItem );
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// delete the object to avoid a memory leak
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delete pCurChildItem;
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}
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}
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#ifdef ENABLE_CLIENT_VERSION_AND_OS_DEBUGGING
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void CConnectDlg::SetVersionAndOSType ( CHostAddress InetAddr,
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COSUtil::EOpSystemType eOSType,
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QString strVersion )
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{
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// apply the received version and OS type to the correct server list entry
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QTreeWidgetItem* pCurListViewItem = FindListViewItem ( InetAddr );
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if ( pCurListViewItem )
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{
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// TEST since this is just a debug info, we just reuse the ping column (note
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// the we have to replace the ping message emit with the version and OS request
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// so that this works, see above code)
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pCurListViewItem->
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setText ( 1, strVersion + "/" + COSUtil::GetOperatingSystemString ( eOSType ) );
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// a version and OS type was received, set item to visible
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if ( pCurListViewItem->isHidden() )
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{
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pCurListViewItem->setHidden ( false );
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}
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}
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}
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#endif
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