mpv/libmenu/menu.h

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#ifndef MENU_H
#define MENU_H
struct menu_priv_s;
typedef struct menu_s menu_t;
typedef struct menu_def_st menu_def_t;
struct m_struct_st;
struct menu_s {
struct MPContext *ctx;
void (*draw)(menu_t* menu,mp_image_t* mpi);
void (*read_cmd)(menu_t* menu,int cmd);
int (*read_key)(menu_t* menu,int cmd);
void (*close)(menu_t* menu);
struct m_struct_st* priv_st;
struct menu_priv_s* priv;
int show; // Draw it ?
int cl; // Close request (user sent a close cmd or
menu_t* parent;
menu_def_t *type;
};
typedef struct menu_info_s {
const char *info;
const char *name;
const char *author;
const char *comment;
struct m_struct_st priv_st; // Config struct definition
// cfg is a config struct as defined in cfg_st, it may be used as a priv struct
// cfg is filled from the attributs found in the cfg file
// the args param hold the content of the balise in the cfg file (if any)
int (*open)(menu_t* menu, char* args);
} menu_info_t;
#define MENU_CMD_UP 0
#define MENU_CMD_DOWN 1
#define MENU_CMD_OK 2
#define MENU_CMD_CANCEL 3
#define MENU_CMD_LEFT 4
#define MENU_CMD_RIGHT 5
#define MENU_CMD_ACTION 6
#define MENU_CMD_HOME 7
#define MENU_CMD_END 8
#define MENU_CMD_PAGE_UP 9
#define MENU_CMD_PAGE_DOWN 10
#define MENU_CMD_CLICK 11
/// Global init/uninit
int menu_init(struct MPContext *mpctx, char* cfg_file);
void menu_uninit(void);
/// Open a menu defined in the config file
menu_t* menu_open(char *name);
void menu_draw(menu_t* menu,mp_image_t* mpi);
void menu_read_cmd(menu_t* menu,int cmd);
void menu_close(menu_t* menu);
int menu_read_key(menu_t* menu,int cmd);
//// Default implementation
int menu_dflt_read_key(menu_t* menu,int cmd);
/// Receive mouse position events.
void menu_update_mouse_pos(double x, double y);
/////////// Helpers
#define MENU_TEXT_TOP (1<<0)
#define MENU_TEXT_VCENTER (1<<1)
#define MENU_TEXT_BOT (1<<2)
#define MENU_TEXT_VMASK (MENU_TEXT_TOP|MENU_TEXT_VCENTER|MENU_TEXT_BOT)
#define MENU_TEXT_LEFT (1<<3)
#define MENU_TEXT_HCENTER (1<<4)
#define MENU_TEXT_RIGHT (1<<5)
#define MENU_TEXT_HMASK (MENU_TEXT_LEFT|MENU_TEXT_HCENTER|MENU_TEXT_RIGHT)
#define MENU_TEXT_CENTER (MENU_TEXT_VCENTER|MENU_TEXT_HCENTER)
void menu_draw_text(mp_image_t* mpi, char* txt, int x, int y);
int menu_text_length(char* txt);
int menu_text_num_lines(char* txt, int max_width);
void menu_text_size(char* txt,int max_width,
int vspace, int warp,
int* _w, int* _h);
void menu_draw_text_full(mp_image_t* mpi,char* txt,
int x, int y,int w, int h,
int vspace, int warp, int align, int anchor);
void menu_draw_box(mp_image_t* mpi, unsigned char grey, unsigned char alpha, int x, int y, int w, int h);
#endif /* MENU_H */