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-rw-r--r--libksirtet/lib/meeting.cpp575
1 files changed, 575 insertions, 0 deletions
diff --git a/libksirtet/lib/meeting.cpp b/libksirtet/lib/meeting.cpp
new file mode 100644
index 00000000..2cb6e285
--- /dev/null
+++ b/libksirtet/lib/meeting.cpp
@@ -0,0 +1,575 @@
+#include "meeting.h"
+
+#include <qmessagebox.h>
+#include <qpushbutton.h>
+
+#include <klocale.h>
+#include <kmessagebox.h>
+
+#include "defines.h"
+#include "mp_option.h"
+
+#define LIST_INTERVAL 0
+
+
+NetMeeting::NetMeeting(const cId &_id, Socket *socket,
+ MPOptionWidget *option,
+ bool _server, QWidget *parent, const char * name)
+: KDialogBase(Plain, i18n("Network Meeting"),
+ (_server ? Ok|Cancel|Help : Cancel|Help),
+ (_server ? Ok : Cancel), parent, name),
+ server(_server), ow(option), id(_id), socketRemoved(FALSE)
+{
+ sm.append(socket, SocketManager::ReadWrite);
+ sm[0]->notifier()->setEnabled(TRUE);
+
+/* top layout */
+ QVBoxLayout *top = new QVBoxLayout(plainPage(), spacingHint());
+ top->setResizeMode(QLayout::Fixed);
+
+ // server line
+ spl = new MeetingLine(server, server, true, plainPage());
+ top->addWidget(spl);
+
+ // widget list
+ wl = new WidgetList<MeetingLine>(LIST_INTERVAL, plainPage());
+ wl->hide();
+ top->addWidget(wl);
+
+ labWait = new QLabel(i18n("Waiting for clients"), plainPage());
+ labWait->setAlignment(AlignCenter);
+ top->addWidget(labWait);
+
+ // options widget
+// if (ow) top->addWidget(ow); #### FIXME
+
+ // status bar
+ status = new QStatusBar(plainPage());
+ status->setSizeGripEnabled(false);
+ top->addWidget(status);
+
+ // buttons
+ enableButtonSeparator(TRUE);
+ if (server) {
+ setButtonOK(i18n("Start Game"));
+ enableButtonOK(FALSE);
+ }
+ setButtonCancel(server ? i18n("Abort") : i18n("Quit"));
+ enableButton(Help, FALSE);
+}
+
+NetMeeting::~NetMeeting()
+{}
+
+void NetMeeting::appendLine(const MeetingLineData &pld, bool server)
+{
+ MeetingLine *pl;
+ pl = new MeetingLine(pld.own, server, false, wl);
+ if (pld.own) connect(pl, SIGNAL(textChanged(const QString &)),
+ SLOT(textChanged(const QString &)));
+ else message(i18n("A new client has just arrived (#%1)")
+ .arg(wl->size()+1));
+ pl->setData(pld.ed);
+ connect(pl, SIGNAL(typeChanged(MeetingCheckBox::Type)),
+ SLOT(typeChanged(MeetingCheckBox::Type)));
+ wl->append(pl);
+ waiting();
+}
+
+void NetMeeting::removeLine(uint i)
+{
+ wl->remove(i);
+ waiting();
+}
+
+void NetMeeting::waiting()
+{
+ if ( wl->size() ) {
+ labWait->hide();
+ wl->show();
+ } else {
+ labWait->show();
+ wl->hide();
+ }
+ if (server) enableButtonOK(ready());
+}
+
+void NetMeeting::setType(const TypeInfo &ti)
+{
+ if ( ti.i==0 ) spl->setType(ti.type); // in fact should not append
+ else {
+ wl->widget(ti.i-1)->setType(ti.type);
+ if (server) enableButtonOK(ready());
+ }
+}
+
+void NetMeeting::setText(const TextInfo &ti)
+{
+ if ( ti.i==0 ) spl->setText(ti.text);
+ else wl->widget(ti.i-1)->setText(ti.text);
+}
+
+bool NetMeeting::ready() const
+{
+ int nbReady = 0;
+ for(uint k=0; k<wl->size(); k++) {
+ switch ( wl->widget(k)->type() ) {
+ case MeetingCheckBox::Ready : nbReady++; break;
+ case MeetingCheckBox::NotReady : return FALSE;
+ default : break;
+ }
+ }
+ return ( nbReady!=0 );
+}
+
+void NetMeeting::cleanReject(const QString &str)
+{
+ sm.clean(); // remove the sockets immediately to avoid possible further mess
+ if ( !str.isEmpty() )
+ KMessageBox::information(this, str, caption());
+ KDialogBase::reject();
+}
+
+#define WRITE(i) if ( !sm[i]->write() ) { writeError(i); return; }
+#define CHECK_READ(i) if ( !sm[i]->readingStream().readOk() ) { dataError(i); return; }
+
+// Read incoming data
+void NetMeeting::readNotifier(int fd)
+{
+ int i = sm.find(fd);
+ Q_ASSERT( i!=-1 );
+ switch ( sm[i]->read() ) {
+ case -1: readError(i); break;
+ case 0: brokeError(i); break;
+ default: readData(i);
+ }
+}
+
+void NetMeeting::readData(uint i)
+{
+ // get message type
+ MeetingMsgFlag mt;
+ sm[i]->readingStream() >> mt;
+ CHECK_READ(i);
+ switch (mt) {
+ case EndFlag: endFlag(i); break;
+ case NewFlag: newFlag(i); break;
+ case Mod_TextFlag: modTextFlag(i); break;
+ case Mod_TypeFlag: modTypeFlag(i); break;
+ case IdFlag: idFlag(i); break;
+ case DelFlag: delFlag(i); break;
+ case Mod_OptFlag: modOptFlag(i); break;
+ case PlayFlag: playFlag(i); break;
+ default: dataError(i);
+ }
+
+ if (socketRemoved) socketRemoved = FALSE;
+ else if ( !sm[i]->readingStream().atEnd() )
+ readData(i); // more pending data
+}
+
+void NetMeeting::readError(uint i)
+ { netError(i, i18n("Error reading data from")); }
+void NetMeeting::dataError(uint i)
+ { netError(i, i18n("Unknown data from")); }
+void NetMeeting::writeError(uint i)
+ { netError(i, i18n("Error writing to")); }
+void NetMeeting::brokeError(uint i)
+ { netError(i, i18n("Link broken or empty data from")); }
+
+bool NetMeeting::checkState(uint i, PlayerState s)
+{
+ bool ok = ( players[i]==s );
+ if (!ok) dataError(i);
+ return ok;
+}
+
+bool NetMeeting::checkAndSetState(uint i, PlayerState os, PlayerState ns)
+{
+ bool ok = checkState(i, os);
+ if (ok) players[i] = ns;
+ return ok;
+}
+
+void NetMeeting::reject()
+{
+ // send an End flag
+ sm.commonWritingStream() << EndFlag;
+ writeToAll();
+
+ cleanReject();
+}
+
+void NetMeeting::accept()
+{
+ KDialogBase::accept();
+}
+
+void NetMeeting::message(const QString &str)
+{
+ status->message(str, 3000);
+}
+
+/** ServerNetMeeting *********************************************************/
+ServerNetMeeting::ServerNetMeeting(const cId &id,
+ const RemoteHostData &r, MPOptionWidget *option,
+ QPtrList<RemoteHostData> &arhd, QWidget *parent, const char * name)
+: NetMeeting(id, r.socket, option, TRUE, parent, name), rhd(arhd)
+{
+ connect(sm[0]->notifier(), SIGNAL(activated(int)), SLOT(newHost(int)));
+ players.append(Accepted); // server
+
+ // set server line
+ ExtData ed(r.bds, "", MeetingCheckBox::Ready);
+ spl->setData(ed);
+ connect(spl, SIGNAL(textChanged(const QString &)),
+ SLOT(textChanged(const QString &)));
+
+ // options signal
+ if (ow) connect(ow, SIGNAL(changed()), SLOT(optionsChanged()));
+}
+
+void ServerNetMeeting::writeToAll(uint i)
+{
+ for (uint k=1; k<sm.size(); k++) {
+ if ( k==i ) continue;
+ if ( !sm.writeCommon(k) ) writeError(k);
+ }
+ sm.commonWritingStream().clear();
+}
+
+void ServerNetMeeting::netError(uint i, const QString &type)
+{
+ Q_ASSERT( i!=0 );
+ disconnectHost(i, i18n("%1 client #%2: disconnect it").arg(type).arg(i));
+}
+
+void ServerNetMeeting::disconnectHost(uint i, const QString &str)
+{
+ sm.remove(i, true);
+ socketRemoved = TRUE;
+ if ( players[i]==Accepted ) {
+ removeLine(i-1);
+
+ // Send a Del message to all (other) clients
+ sm.commonWritingStream() << DelFlag << i;
+ writeToAll();
+ }
+ players.remove(players.at(i));
+ message(str);
+}
+
+void ServerNetMeeting::newHost(int)
+{
+ KExtendedSocket *s;
+ int res = sm[0]->accept(s);
+ if ( res!=0 ) {
+ message(i18n("Failed to accept incoming client:\n%1")
+ .arg(socketError(s)));
+ return;
+ }
+ players.append(NewPlayer);
+ Socket *socket = new Socket(s, true);
+ uint i = sm.append(socket, SocketManager::ReadWrite);
+ connect(sm[i]->notifier(), SIGNAL(activated(int)),
+ SLOT(readNotifier(int)));
+ sm[i]->notifier()->setEnabled(TRUE);
+}
+
+void ServerNetMeeting::idFlag(uint i)
+{
+ bool b = checkAndSetState(i, NewPlayer, IdChecked);
+ Q_ASSERT(b);
+
+ // get client id
+ cId clientId;
+ sm[i]->readingStream() >> clientId;
+ CHECK_READ(i);
+
+ // compare id
+ id.check(clientId);
+
+ // send result to client
+ Stream &s = sm[i]->writingStream();
+ s << IdFlag << id;
+ WRITE(i);
+
+ // if not accepted : remove socket and player from list
+ if ( !id.accepted() )
+ disconnectHost(i, i18n("Client rejected for incompatible ID"));
+}
+
+void ServerNetMeeting::endFlag(uint i)
+{
+ disconnectHost(i, i18n("Client #%1 has left").arg(i));
+}
+
+void ServerNetMeeting::newFlag(uint i)
+{
+ checkAndSetState(i, IdChecked, Accepted);
+
+ // get line infos from new client (GameData struct)
+ MeetingLineData pld;
+ sm[i]->readingStream() >> pld.ed.bds;
+ CHECK_READ(i);
+
+ // complete the MeetingLineData struct with initial values
+ pld.own = FALSE; // client line
+ pld.ed.type = MeetingCheckBox::NotReady; // not ready by default
+ pld.ed.text = ""; // empty line to begin with
+ appendLine(pld, TRUE);
+
+ // send to the new client already present lines including its own
+ // (New flag + MeetingLineData struct)
+ spl->data(pld.ed);
+ sm[i]->writingStream() << NewFlag << pld.ed;
+ for(uint k=1; k<sm.size(); k++) {
+ wl->widget(k-1)->data(pld.ed);
+ pld.own = ( k==i );
+ sm[i]->writingStream() << NewFlag << pld;
+ }
+ WRITE(i);
+
+ // send to all other clients the new line (New flag + MeetingLineData struct)
+ wl->widget(i-1)->data(pld.ed);
+ pld.own = FALSE;
+ sm.commonWritingStream() << NewFlag << pld;
+ writeToAll(i);
+}
+
+void ServerNetMeeting::modTextFlag(uint i)
+{
+ checkState(i-1, Accepted);
+
+ // the client i has just sent a new text (QString)
+ TextInfo ti;
+ sm[i]->readingStream() >> ti.text;
+ CHECK_READ(i);
+ ti.i = i;
+ setText(ti);
+
+ // send it to all other clients (Mod_Text flag + TextInfo struct)
+ sm.commonWritingStream() << Mod_TextFlag << ti;
+ writeToAll(i);
+}
+
+void ServerNetMeeting::modTypeFlag(uint i)
+{
+ checkState(i-1, Accepted);
+
+ // a client has just sent a new TCB type (TCB type)
+ TypeInfo ti;
+ sm[i]->readingStream() >> ti.type;
+ CHECK_READ(i);
+ ti.i = i;
+ setType(ti);
+
+ // send it to all other clients (Mod_Type flag + TypeInfo struct)
+ sm.commonWritingStream() << Mod_TypeFlag << ti;
+ writeToAll(i);
+}
+
+void ServerNetMeeting::textChanged(const QString &text)
+{
+ // server line text changed : send to every clients (Mod_Text flag + TextInfo struct)
+ TextInfo ti; ti.i = 0; ti.text = text;
+ sm.commonWritingStream() << Mod_TextFlag << ti;
+ writeToAll();
+}
+
+void ServerNetMeeting::typeChanged(MeetingCheckBox::Type type)
+{
+ Q_ASSERT( sender()!=spl ); // server TCB not modifiable
+ // the server has changed a client TCB
+
+ // find the changed TCB index
+ TypeInfo ty;
+ ty.type = type;
+ for (ty.i=0; ty.i<wl->size(); ty.i++)
+ if ( sender()==wl->widget(ty.i) ) break;
+ ty.i++;
+
+ // TCB change : send to every clients (Mod_Type flag + TypeInfo struct)
+ sm.commonWritingStream() << Mod_TypeFlag << ty;
+ writeToAll();
+ if (server) enableButtonOK(ready());
+}
+
+void ServerNetMeeting::accept()
+{
+ Q_ASSERT( ready() && rhd.count()==0 );
+
+ // stop receiving data from clients (will be buffered by OS)
+ for (uint k=0; k<sm.size(); k++) disconnect(sm[k]->notifier());
+ sm.remove(0, true);
+
+ // check which client will play and fill RemoteHostData array
+ ExtData ed;
+ bool willPlay;
+ for (uint k=1; k<players.count(); k++) {
+ willPlay = FALSE;
+
+ if ( players[k]==Accepted ) { // client with lines
+ wl->widget(k-1)->data(ed);
+ if ( ed.type==MeetingCheckBox::Ready ) {
+ willPlay = TRUE;
+ RemoteHostData *r = new RemoteHostData;
+ r->socket = sm[0];
+ r->bds = ed.bds;
+ rhd.append(r);
+ }
+
+ // send play message to client (Play flag
+ // + bool [accepted/rejected])
+ sm[0]->writingStream() << PlayFlag << (Q_UINT8)willPlay;
+ // if write failed and the client is not playing : silently
+ // put it aside ...
+ if ( !sm[0]->write() && willPlay ) {
+ cleanReject(i18n("Unable to write to client #%1 at game "
+ "beginning."));
+ return;
+ }
+ }
+
+ sm[0]->notifier()->setEnabled(false);
+ sm.remove(0, !willPlay);
+ }
+
+ NetMeeting::accept();
+}
+
+void ServerNetMeeting::optionsChanged()
+{
+ sm.commonWritingStream() << Mod_OptFlag;
+ ow->dataOut( sm.commonWritingStream() );
+ writeToAll();
+}
+
+/** ClientNetMeeting *********************************************************/
+ClientNetMeeting::ClientNetMeeting(const cId &id,
+ const RemoteHostData &rhd, MPOptionWidget *option,
+ QWidget *parent, const char * name)
+: NetMeeting(id, rhd.socket, option, FALSE, parent, name), bds(rhd.bds)
+{
+ connect(sm[0]->notifier(), SIGNAL(activated(int)),
+ SLOT(readNotifier(int)));
+ players.append(NewPlayer); // server player
+
+ // Send id to server (Id flag + Id struct)
+ sm.commonWritingStream() << IdFlag << id;
+ writeToAll(); // what happens if there is a message box appearing before exec() call ??
+}
+
+void ClientNetMeeting::netError(uint, const QString &str)
+{
+ cleanReject(i18n("%1 server: aborting connection.").arg(str));
+}
+
+void ClientNetMeeting::writeToAll(uint)
+{
+ if ( !sm.writeCommon(0) ) writeError(0);
+ sm.commonWritingStream().clear();
+}
+
+void ClientNetMeeting::idFlag(uint)
+{
+ checkAndSetState(0, NewPlayer, IdChecked);
+
+ // read Id result (Id flag + Id struct)
+ cId serverId;
+ sm[0]->readingStream() >> serverId;
+ CHECK_READ(0);
+
+ // check result
+ if ( !serverId.accepted() ) cleanReject(serverId.errorMessage(id));
+ else {
+ // send client info (New flag + GameData struct)
+ sm.commonWritingStream() << NewFlag << bds;
+ writeToAll();
+ }
+}
+
+void ClientNetMeeting::newFlag(uint)
+{
+ if ( players[0]==IdChecked ) {
+ ExtData ed;
+ sm[0]->readingStream() >> ed;
+ spl->setData(ed);
+ players[0] = Accepted;
+ } else {
+ MeetingLineData pld;
+ sm[0]->readingStream() >> pld;
+ appendLine(pld, FALSE);
+ }
+ CHECK_READ(0);
+}
+
+void ClientNetMeeting::modTextFlag(uint)
+{
+ // receive new text from server (TextInfo struct)
+ TextInfo ti;
+ sm[0]->readingStream() >> ti;
+ CHECK_READ(0);
+ setText(ti);
+}
+
+void ClientNetMeeting::modTypeFlag(uint)
+{
+ // receive new type from server (TypeInfo struct)
+ TypeInfo ti;
+ sm[0]->readingStream() >> ti;
+ CHECK_READ(0);
+ setType(ti);
+}
+
+void ClientNetMeeting::delFlag(uint)
+{
+ // receive client number (uint)
+ uint k;
+ sm[0]->readingStream() >> k;
+ CHECK_READ(0);
+ removeLine(k-1);
+ message(i18n("Client %1 has left").arg(k));
+}
+
+void ClientNetMeeting::textChanged(const QString &text)
+{
+ // text changed : send to server (Mod_Text flag + QString)
+ sm.commonWritingStream() << Mod_TextFlag << text;
+ writeToAll();
+}
+
+void ClientNetMeeting::typeChanged(MeetingCheckBox::Type type)
+{
+ // type changed : send to server (Mod_Type flag + TCB)
+ sm.commonWritingStream() << Mod_TypeFlag << type;
+ writeToAll();
+}
+
+void ClientNetMeeting::playFlag(uint)
+{
+ // receive accept or reject (bool)
+ Q_UINT8 i;
+ sm[0]->readingStream() >> i;
+ CHECK_READ(0);
+ sm[0]->notifier()->setEnabled(false);
+ sm.remove(0, i==0);
+ socketRemoved = true;
+ if (i) accept();
+ else cleanReject(i18n("The game has begun without you\n"
+ "(You have been excluded by the server)."));
+}
+
+void ClientNetMeeting::modOptFlag(uint)
+{
+ // read new option data
+ ow->dataIn( sm[0]->readingStream() );
+ CHECK_READ(0);
+}
+
+void ClientNetMeeting::endFlag(uint)
+{
+ // abort from server
+ cleanReject(i18n("The server has aborted the game."));
+}
+#include "meeting.moc"
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