menu.h

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#ifndef GUI_MENU_H
#define GUI_MENU_H

#include <cfg/compiler.h>

#include <gfx/gfx.h>

typedef iptr_t (*MenuHook)(iptr_t userdata);
typedef void (*BlitBitmap)(const Bitmap *bm);

typedef struct MenuItem
{
    const_iptr_t label;    
    int          flags;    
    MenuHook     hook;     
    iptr_t       userdata; 
} MenuItem;

typedef void (*RenderHook)(struct Bitmap *bitmap, int ypos, bool selected, const struct MenuItem *item);

#define MIF_EXCLUDE_MASK    0x00FF 
#define MIF_PRI_MASK        0x00FF 
#define MIF_PRI(x)          ((x) & MIF_PRI_MASK) 
#define MIF_EXCLUDE_0       BV(0)  
#define MIF_EXCLUDE_1       BV(1)  
#define MIF_EXCLUDE_2       BV(2)  
#define MIF_EXCLUDE_3       BV(3)  
#define MIF_EXCLUDE_4       BV(4)  
#define MIF_EXCLUDE_5       BV(5)  
#define MIF_EXCLUDE_6       BV(6)  
#define MIF_EXCLUDE_7       BV(7)  
#define MIF_CHECKED         BV(8)  
#define MIF_CHECKIT         BV(9)  
#define MIF_TOGGLE          BV(10) 
#define MIF_HIDDEN          BV(11) 
#define MIF_DISABLED        BV(12) 
#define MIF_RAMLABEL        BV(13) 
#define MIF_RENDERHOOK      BV(14) 
/* \} */

typedef struct Menu
{
    MenuItem        *items;    
    const_iptr_t     title;    
    int              flags;    
    struct Bitmap   *bitmap;   
    int              selected; 
    BlitBitmap       lcd_blitBitmap; 
} Menu;

#define MF_STICKY   BV(0)  
#define MF_TOPLEVEL BV(1)  
#define MF_ROMITEMS BV(2)  
#define MF_SAVESEL  BV(3)  
/* \} */

#define MENU_OK       ((iptr_t)0)
#define MENU_CANCEL   ((iptr_t)-1)
#define MENU_TIMEOUT  ((iptr_t)-2)
#define MENU_ABORT    ((iptr_t)-3)
#define MENU_DISABLED ((iptr_t)-4)
/* \} */

/* Function prototypes */
iptr_t menu_handle(const struct Menu *menu);
int menu_setFlags(struct Menu *menu, int idx, int flags);
int menu_clearFlags(struct Menu *menu, int idx, int flags);

#endif /* GUI_MENU_H */