source: trunk/src/qt3support/tools/q3garray.h@ 792

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#ifndef Q3GARRAY_H
#define Q3GARRAY_H

#include <Qt3Support/q3shared.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Qt3SupportLight)

class Q_COMPAT_EXPORT Q3GArray                                  // generic array
{
    friend class QBuffer;
public:
    // do not use this, even though this is public
    struct array_data : public Q3Shared {       // shared array
        array_data():data(0),len(0)
#ifdef QT_QGARRAY_SPEED_OPTIM
                    ,maxl(0)
#endif
            {}
        char *data;                             // actual array data
        uint  len;
#ifdef QT_QGARRAY_SPEED_OPTIM
        uint maxl;
#endif
    };
    Q3GArray();
    enum Optimization { MemOptim, SpeedOptim };
protected:
    Q3GArray(int, int);                 // dummy; does not alloc
    Q3GArray(int size);                 // allocate 'size' bytes
    Q3GArray(const Q3GArray &a);                // shallow copy
    virtual ~Q3GArray();

    Q3GArray    &operator=(const Q3GArray &a) { return assign(a); }

    virtual void detach()       { duplicate(*this); }

    // ### Qt 4.0: maybe provide two versions of data(), at(), etc.
    char       *data()   const  { return shd->data; }
    uint        nrefs()  const  { return shd->count; }
    uint        size()   const  { return shd->len; }
    bool        isEqual(const Q3GArray &a) const;

    bool        resize(uint newsize, Optimization optim);
    bool        resize(uint newsize);

    bool        fill(const char *d, int len, uint sz);

    Q3GArray    &assign(const Q3GArray &a);
    Q3GArray    &assign(const char *d, uint len);
    Q3GArray    &duplicate(const Q3GArray &a);
    Q3GArray    &duplicate(const char *d, uint len);
    void        store(const char *d, uint len);

    array_data *sharedBlock()   const           { return shd; }
    void        setSharedBlock(array_data *p) { shd=(array_data*)p; }

    Q3GArray    &setRawData(const char *d, uint len);
    void        resetRawData(const char *d, uint len);

    int         find(const char *d, uint index, uint sz) const;
    int         contains(const char *d, uint sz) const;

    void        sort(uint sz);
    int         bsearch(const char *d, uint sz) const;

    char       *at(uint index) const;

    bool        setExpand(uint index, const char *d, uint sz);

protected:
    virtual array_data *newData();
    virtual void deleteData(array_data *p);

private:
    static void msg_index(uint);
    array_data *shd;
};


inline char *Q3GArray::at(uint index) const
{
#if defined(QT_CHECK_RANGE)
    if (index >= size()) {
        msg_index(index);
        index = 0;
    }
#endif
    return &shd->data[index];
}

QT_END_NAMESPACE

QT_END_HEADER

#endif // Q3GARRAY_H