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** this package.
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** Foundation and appearing in the file LICENSE.LGPL included in the
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****************************************************************************/

#ifndef QDECLARATIVELISTMODEL_H
#define QDECLARATIVELISTMODEL_H

#include <qdeclarative.h>
#include <private/qdeclarativecustomparser_p.h>

#include <QtCore/QObject>
#include <QtCore/QStringList>
#include <QtCore/QHash>
#include <QtCore/QList>
#include <QtCore/QVariant>
#include <private/qlistmodelinterface_p.h>
#include <QtScript/qscriptvalue.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)

struct ModelNode;
class Q_DECLARATIVE_EXPORT QDeclarativeListModel : public QListModelInterface
{
    Q_OBJECT
    Q_PROPERTY(int count READ count NOTIFY countChanged)

public:
    QDeclarativeListModel(QObject *parent=0);
    ~QDeclarativeListModel();

    virtual QList<int> roles() const;
    virtual QString toString(int role) const;
    virtual int count() const;
    virtual QHash<int,QVariant> data(int index, const QList<int> &roles = (QList<int>())) const;
    virtual QVariant data(int index, int role) const;

    Q_INVOKABLE void clear();
    Q_INVOKABLE void remove(int index);
    Q_INVOKABLE void append(const QScriptValue&);
    Q_INVOKABLE void insert(int index, const QScriptValue&);
    Q_INVOKABLE QScriptValue get(int index) const;
    Q_INVOKABLE void set(int index, const QScriptValue&);
    Q_INVOKABLE void setProperty(int index, const QString& property, const QVariant& value);
    Q_INVOKABLE void move(int from, int to, int count);

Q_SIGNALS:
    void countChanged(int);

private:
    QVariant valueForNode(ModelNode *) const;
    mutable QStringList roleStrings;
    friend class QDeclarativeListModelParser;
    friend struct ModelNode;

    void checkRoles() const;
    void addRole(const QString &) const;
    mutable bool _rolesOk;
    ModelNode *_root;
};

// ### FIXME
class QDeclarativeListElement : public QObject
{
Q_OBJECT
};

class QDeclarativeListModelParser : public QDeclarativeCustomParser
{
public:
    QByteArray compile(const QList<QDeclarativeCustomParserProperty> &);
    void setCustomData(QObject *, const QByteArray &);

private:
    struct ListInstruction
    {
        enum { Push, Pop, Value, Set } type;
        int dataIdx;
    };
    struct ListModelData
    {
        int dataOffset;
        int instrCount;
        ListInstruction *instructions() const;
    };
    bool compileProperty(const QDeclarativeCustomParserProperty &prop, QList<ListInstruction> &instr, QByteArray &data);

    bool definesEmptyList(const QString &);
};


QT_END_NAMESPACE

QML_DECLARE_TYPE(QDeclarativeListModel)
QML_DECLARE_TYPE(QDeclarativeListElement)

QT_END_HEADER

#endif // QDECLARATIVELISTMODEL_H