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tdegames/libkdegames/kgame/kgameproperty.cpp

212 lines
4.9 KiB

/*
This file is part of the KDE games library
Copyright (C) 2001 Andreas Beckermann (b_mann@gmx.de)
Copyright (C) 2001 Martin Heni (martin@heni-online.de)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/*
$Id$
*/
#include "kgameproperty.h"
#include "kgamepropertyhandler.h"
#include "kgamemessage.h"
#include "kplayer.h"
#include "kgame.h"
#define KPLAYERHANDLER_LOAD_COOKIE 6239
KGamePropertyBase::KGamePropertyBase(int id, KGame* parent)
{
init();
registerData(id, parent);
}
KGamePropertyBase::KGamePropertyBase(int id, KPlayer* parent)
{
init();
registerData(id, parent);
}
KGamePropertyBase::KGamePropertyBase(int id, KGamePropertyHandler* owner)
{
init();
registerData(id, owner);
}
KGamePropertyBase::KGamePropertyBase()
{
init();
}
KGamePropertyBase::~KGamePropertyBase()
{
unregisterData();
}
void KGamePropertyBase::init()
{
mOwner = 0;
setDirty(false);
// this is very useful and used by e.g. KGameDialog so
// it is activated by default. Big games may profit by deactivating it to get
// a better performance.
setEmittingSignal(true);
setOptimized(false);
//setReadOnly(false);
mFlags.bits.locked = false ; // setLocked(false); is NOT possible as it checks whether isLocked() allows to change the status
// local is default
setPolicy(PolicyLocal);
}
int KGamePropertyBase::registerData(int id, KGame* owner, QString name)
{ return registerData(id, owner->dataHandler(), name); }
int KGamePropertyBase::registerData(int id, KPlayer* owner, QString name)
{ return registerData(id, owner->dataHandler(), name); }
int KGamePropertyBase::registerData( KGamePropertyHandler* owner,PropertyPolicy p, QString name)
{ return registerData(-1, owner,p, name); }
int KGamePropertyBase::registerData(int id, KGamePropertyHandler* owner, QString name)
{ return registerData(id, owner,PolicyUndefined, name); }
int KGamePropertyBase::registerData(int id, KGamePropertyHandler* owner,PropertyPolicy p, QString name)
{
// we don't support changing the id
if (!owner) {
kdWarning(11001) << k_funcinfo << "Resetting owner=0. Sure you want to do this?" << endl;
mOwner=0;
return -1;
}
if (!mOwner) {
if (id==-1) {
id=owner->uniquePropertyId();
}
mId = id;
mOwner = owner;
mOwner->addProperty(this, name);
if (p!=PolicyUndefined) {
setPolicy(p);
} else {
setPolicy(mOwner->policy());
}
}
return mId;
}
void KGamePropertyBase::unregisterData()
{
if (!mOwner) {
return;
}
mOwner->removeProperty(this);
mOwner = 0;
}
bool KGamePropertyBase::sendProperty()
{
QByteArray b;
QDataStream s(b, IO_WriteOnly);
KGameMessage::createPropertyHeader(s, id());
save(s);
if (mOwner) {
return mOwner->sendProperty(s);
} else {
kdError(11001) << k_funcinfo << "Cannot send because there is no receiver defined" << endl;
return false;
}
}
bool KGamePropertyBase::sendProperty(const QByteArray& data)
{
QByteArray b;
QDataStream s(b, IO_WriteOnly);
KGameMessage::createPropertyHeader(s, id());
s.writeRawBytes(data.data(), data.size());
if (mOwner) {
return mOwner->sendProperty(s);
} else {
kdError(11001) << k_funcinfo << ": Cannot send because there is no receiver defined" << endl;
return false;
}
}
bool KGamePropertyBase::lock()
{
if (isLocked()) {
return false;
}
setLock(true);
return true;
}
bool KGamePropertyBase::unlock(bool force)
{
if (isLocked() && !force) {
return false;
}
setLock(false);
return true;
}
void KGamePropertyBase::setLock(bool l)
{
QByteArray b;
QDataStream s(b, IO_WriteOnly);
KGameMessage::createPropertyCommand(s, IdCommand, id(), CmdLock);
s << (Q_INT8)l;
if (mOwner) {
mOwner->sendProperty(s);
} else {
kdError(11001) << k_funcinfo << ": Cannot send because there is no receiver defined" << endl;
return ;
}
}
void KGamePropertyBase::emitSignal()
{
//kdDebug(11001) << k_funcinfo << ": mOwnerP="<< mOwner << " id=" << id() << endl;
if (mOwner ) {
mOwner->emitSignal(this);
} else {
kdError(11001) << k_funcinfo << ":id="<<id()<<" Cannot emitSignal because there is no handler set" << endl;
}
}
void KGamePropertyBase::command(QDataStream& s, int cmd, bool isSender)
{
switch (cmd) {
case CmdLock:
{
if (!isSender) {
Q_INT8 locked;
s >> locked;
mFlags.bits.locked = (bool)locked ;
break;
}
}
default: // probably in derived classes
break;
}
}