|| || || || || || || ||

---

Table.h

Go to the documentation of this file.

#ifndef Impala_Core_Table_Table_h
#define Impala_Core_Table_Table_h

namespace Impala
{
namespace Core
{
namespace Table
{


class Table
{
public:

    Table()
    {
        mLast = 0;
        mCursor = -1;
    }

    virtual ~Table()
    {
    }

    int
    Size() const
    {
        return mLast;
    }

    void
    SetSize(int nr)
    {
        mLast = nr;
    }

    void
    SetEmpty()
    {
        mLast = 0;
        mCursor = -1;
    }

    void
    RemoveLast()
    {
        if (mLast > 0)
            mLast--;
        if (mCursor > mLast)
            mCursor = -1;
    }

    // cursor part

    bool
    HasCursor() const
    {
        return mCursor != -1;
    }

    int
    GetCursor() const
    {
        return mCursor;
    }

    bool
    SetCursor(int newPos)
    {
        if ((newPos < 0) || (newPos >= mLast))
            return false;
        mCursor = newPos;
        return true;
    }

    bool
    MoveCursor(int steps)
    {
        if (mCursor + steps < 0) // allow move from -1 to 0, but not 0 to -1
            return false;
        return SetCursor(mCursor + steps);
    }

    void
    DeleteCursor()
    {
        mCursor = -1;
    }

protected:

    int   mLast;
    int   mCursor;

};

} // namespace Table
} // namespace Core
} // namespace Impala

#endif

---