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#ifndef QCOMPOSEPLATFORMINPUTCONTEXT_H
#define QCOMPOSEPLATFORMINPUTCONTEXT_H

#include <qpa/qplatforminputcontext.h>

#include <QtCore/QList>

#include "generator/qtablegenerator.h"

QT_BEGIN_NAMESPACE

class QEvent;

class QComposeInputContext : public QPlatformInputContext
{
    Q_OBJECT

public:
    QComposeInputContext();
    ~QComposeInputContext();

    bool isValid() const Q_DECL_OVERRIDE;
    void setFocusObject(QObject *object) Q_DECL_OVERRIDE;
    void reset() Q_DECL_OVERRIDE;
    void update(Qt::InputMethodQueries) Q_DECL_OVERRIDE;
    bool filterEvent(const QEvent *event) Q_DECL_OVERRIDE;

protected:
    void clearComposeBuffer();
    bool ignoreKey(int keyval) const;
    bool composeKey(int keyval) const;
    bool checkComposeTable();
    void commitText(uint character) const;

private:
    QObject *m_focusObject;
    QVector<QComposeTableElement> m_composeTable;
    uint m_composeBuffer[QT_KEYSEQUENCE_MAX_LEN];
    TableGenerator::TableState m_tableState;
    bool m_compositionTableInitialized;
};

QT_END_NAMESPACE

#endif // QCOMPOSEPLATFORMINPUTCONTEXT_H
