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#ifndef DEBUGGER_REGISTERHANDLER_H
#define DEBUGGER_REGISTERHANDLER_H

#include <QtCore/QAbstractTableModel>
#include <QtCore/QVector>

namespace Debugger {
namespace Internal {

class Register
{
public:
    Register() : changed(true) {}
    Register(const QByteArray &name_) : name(name_), changed(true) {}

    QVariant editValue() const;
    QString displayValue(int base, int strlen) const;

public:
    QByteArray name;
    /* Value should be an integer for which autodetection by passing
     * base=0 to QString::toULongLong() should work (C-language conventions).
     * Values that cannot be converted (such as 128bit MMX-registers) are
     * passed through. */
    QString value;
    bool changed;
};

typedef QVector<Register> Registers;

class RegisterHandler : public QAbstractTableModel
{
    Q_OBJECT

public:
    RegisterHandler();

    QAbstractItemModel *model() { return this; }

    bool isEmpty() const; // nothing known so far?
    // Set up register names (gdb)
    void setRegisters(const Registers &registers);
    // Set register values
    void setAndMarkRegisters(const Registers &registers);
    Registers registers() const;
    Register registerAt(int i) const { return m_registers.at(i); }
    void removeAll();
    Q_SLOT void setNumberBase(int base);
    int numberBase() const { return m_base; }

signals:
    void registerSet(const QModelIndex &r); // Register was set, for memory views

private:
    void calculateWidth();
    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    int columnCount(const QModelIndex &parent = QModelIndex()) const;
    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
    QVariant headerData(int section, Qt::Orientation orientation,
        int role = Qt::DisplayRole) const;
    Qt::ItemFlags flags(const QModelIndex &idx) const;

    Registers m_registers;
    int m_base;
    int m_strlen; // approximate width of a value in chars.
};

} // namespace Internal
} // namespace Debugger

#endif // DEBUGGER_REGISTERHANDLER_H