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tdegames/libksirtet/lib/meeting.cpp

576 lines
14 KiB

#include "meeting.h"
#include <tqmessagebox.h>
#include <tqpushbutton.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, TQWidget *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 */
TQVBoxLayout *top = new TQVBoxLayout(plainPage(), spacingHint());
top->setResizeMode(TQLayout::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 TQLabel(i18n("Waiting for clients"), plainPage());
labWait->setAlignment(AlignCenter);
top->addWidget(labWait);
// options widget
// if (ow) top->addWidget(ow); #### FIXME
// status bar
status = new TQStatusBar(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, TQT_SIGNAL(textChanged(const TQString &)),
TQT_SLOT(textChanged(const TQString &)));
else message(i18n("A new client has just arrived (#%1)")
.arg(wl->size()+1));
pl->setData(pld.ed);
connect(pl, TQT_SIGNAL(typeChanged(MeetingCheckBox::Type)),
TQT_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 TQString &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 TQString &str)
{
status->message(str, 3000);
}
/** ServerNetMeeting *********************************************************/
ServerNetMeeting::ServerNetMeeting(const cId &id,
const RemoteHostData &r, MPOptionWidget *option,
TQPtrList<RemoteHostData> &arhd, TQWidget *parent, const char * name)
: NetMeeting(id, r.socket, option, TRUE, parent, name), rhd(arhd)
{
connect(sm[0]->notifier(), TQT_SIGNAL(activated(int)), TQT_SLOT(newHost(int)));
players.append(Accepted); // server
// set server line
ExtData ed(r.bds, "", MeetingCheckBox::Ready);
spl->setData(ed);
connect(spl, TQT_SIGNAL(textChanged(const TQString &)),
TQT_SLOT(textChanged(const TQString &)));
// options signal
if (ow) connect(ow, TQT_SIGNAL(changed()), TQT_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 TQString &type)
{
Q_ASSERT( i!=0 );
disconnectHost(i, i18n("%1 client #%2: disconnect it").arg(type).arg(i));
}
void ServerNetMeeting::disconnectHost(uint i, const TQString &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(), TQT_SIGNAL(activated(int)),
TQT_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 (TQString)
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 TQString &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,
TQWidget *parent, const char * name)
: NetMeeting(id, rhd.socket, option, FALSE, parent, name), bds(rhd.bds)
{
connect(sm[0]->notifier(), TQT_SIGNAL(activated(int)),
TQT_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 TQString &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 TQString &text)
{
// text changed : send to server (Mod_Text flag + TQString)
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"