legato_tablestring.h

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#ifndef LEGATO_TABLESTRING_H
#define LEGATO_TABLESTRING_H

#include "gfx/legato/string/legato_string.h"

#ifdef __cplusplus
extern "C" {
#endif

#define LE_STRING_NULLIDX -1

/* internal use only */
struct leTableString;

#define LE_TABLESTRING_VTABLE(THIS_TYPE) \
    LE_STRING_VTABLE(THIS_TYPE) \
    \
    uint32_t (*getID)(const THIS_TYPE* _this); \
    leResult (*setID)(THIS_TYPE* _this, uint32_t id); \
    uint32_t (*sizeInBytes)(const THIS_TYPE* _this); \

typedef struct leTableStringVTable
{
    LE_TABLESTRING_VTABLE(struct leTableString)
} leTableStringVTable;

// *****************************************************************************
/* Structure:
    leTableString

  Summary:
    String type that references an entry in a string table.  Read only.

  Remarks:
    None.
*/
typedef struct leTableString
{
    leString base;

    const leTableStringVTable* fn;
    
    int32_t index; // an index into a string table or LE_STRING_NULLIDX
} leTableString;

// *****************************************************************************
/* Function:
    leTableString* leTableString_New(uint32_t idx)

   Summary:
    Allocates memory and constructs a new table string

   Parameters:
    idx - the table index to reference

  Returns:
    leTableString* - pointer to the newly allocated string

  Remarks:
    Caller is responsible for freeing the memory allocated by this function
    using leString_Delete()
*/
leTableString* leTableString_New(uint32_t idx);

// *****************************************************************************
/* Function:
    void leTableString_New(leTableString* str, uint32_t idx)

   Summary:
    Constructs a new table string at the given pointer

   Parameters:
    idx - the table index to reference

  Returns:
    
  Remarks:
    It is assumed that the pointer provided is being managed by the caller.  Use
    leString_PDelete() to properly destruct this pointer.
*/
void leTableString_Constructor(leTableString* str,
                               uint32_t idx);


#ifdef _DOXYGEN_
#define THIS_TYPE struct leWidget

// *****************************************************************************
virtual uint32_t getID(const leTableString* _this);


// *****************************************************************************
virtual leResult setID(leTableString* this,
                       uint32_t id);


// *****************************************************************************
virtual uint32_t sizeInBytes(const leTableString* this);


#undef THIS_TYPE
#endif

#ifdef __cplusplus
}
#endif

#endif /* LEGATO_TABLESTRING_H */