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/*
This file is part of KDE.
Copyright (c) 2004 Cornelius Schumacher <schumacher@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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.
*/
#include <QtCore/QMap>
#include <QtCore/QStringList>
#include "statemachine.h"
using namespace KODE;
class StateMachine::Private
{
public:
QMap<QString, Code> mStateMap;
QString mInitialState;
};
StateMachine::StateMachine() : d(new Private) {}
StateMachine::StateMachine(const StateMachine &other) : d(new Private)
{
*d = *other.d;
}
StateMachine::~StateMachine()
{
delete d;
}
StateMachine &StateMachine::operator=(const StateMachine &other)
{
if (this == &other)
return *this;
*d = *other.d;
return *this;
}
void StateMachine::setState(const QString &state, const Code &code)
{
d->mStateMap.insert(state, code);
if (d->mInitialState.isEmpty())
d->mInitialState = state;
}
void StateMachine::setInitialState(const QString &state)
{
d->mInitialState = state;
}
Code StateMachine::stateDefinition() const
{
Code code;
QStringList states;
QMap<QString, Code>::ConstIterator it;
for (it = d->mStateMap.constBegin(); it != d->mStateMap.constEnd(); ++it) {
states.append(it.key());
}
code += QLatin1String("enum State { ") + states.join(QLatin1String(", "))
+ QLatin1String(" };");
code += QLatin1String("State state = ") + d->mInitialState + QLatin1Char(';');
return code;
}
Code StateMachine::transitionLogic() const
{
Code code;
code += QLatin1String("switch( state ) {");
code.indent();
QMap<QString, Code>::ConstIterator it;
for (it = d->mStateMap.constBegin(); it != d->mStateMap.constEnd(); ++it) {
code += QLatin1String("case ") + it.key() + QLatin1Char(':');
code.indent();
code.addBlock(it.value());
code += QLatin1String("break;");
code.unindent();
}
code += QLatin1String("default:");
code.indent();
code += QLatin1String("break;");
code.unindent();
code.unindent();
code += QLatin1String("}");
return code;
}
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