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/****************************************************************************
**
** Copyright (c) 2015 Digia Plc
** For any questions to Digia, please use contact form at http://qt.digia.com/
**
** All Rights Reserved.
**
** NOTICE: All information contained herein is, and remains
** the property of Digia Plc and its suppliers,
** if any. The intellectual and technical concepts contained
** herein are proprietary to Digia Plc
** and its suppliers and may be covered by Finnish and Foreign Patents,
** patents in process, and are protected by trade secret or copyright law.
** Dissemination of this information or reproduction of this material
** is strictly forbidden unless prior written permission is obtained
** from Digia Plc.
****************************************************************************/
#ifndef DATAMODEL_H
#define DATAMODEL_H
#include "executablecontent.h"
#include <QVariant>
#include <QVector>
namespace Scxml {
class ScxmlEvent;
class StateTable;
#if defined(Q_CC_MSVC) || defined(Q_CC_GNU)
#pragma pack(push, 4) // 4 == sizeof(qint32)
#endif
struct EvaluatorInfo {
ExecutableContent::StringId expr;
ExecutableContent::StringId context;
};
struct AssignmentInfo {
ExecutableContent::StringId dest;
ExecutableContent::StringId expr;
ExecutableContent::StringId context;
};
struct ForeachInfo {
ExecutableContent::StringId array;
ExecutableContent::StringId item;
ExecutableContent::StringId index;
ExecutableContent::StringId context;
};
#if defined(Q_CC_MSVC) || defined(Q_CC_GNU)
#pragma pack(pop)
#endif
typedef qint32 EvaluatorId;
enum { NoEvaluator = -1 };
class SCXML_EXPORT DataModel
{
Q_DISABLE_COPY(DataModel)
public:
DataModel(StateTable *table);
virtual ~DataModel();
StateTable *table() const;
virtual void setup() = 0;
virtual QString evaluateToString(EvaluatorId id, bool *ok) = 0;
virtual bool evaluateToBool(EvaluatorId id, bool *ok) = 0;
virtual QVariant evaluateToVariant(EvaluatorId id, bool *ok) = 0;
virtual void evaluateToVoid(EvaluatorId id, bool *ok) = 0;
virtual void evaluateAssignment(EvaluatorId id, bool *ok) = 0;
virtual bool evaluateForeach(EvaluatorId id, bool *ok, std::function<bool()> body) = 0;
virtual void setEvent(const ScxmlEvent &event) = 0;
virtual QVariant property(const QString &name) const = 0;
virtual bool hasProperty(const QString &name) const = 0;
virtual void setStringProperty(const QString &name, const QString &value, const QString &context,
bool *ok) = 0;
private:
StateTable *m_table;
};
} // namespace Scxml
#endif // DATAMODEL_H
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