libmenu/menu.h

   1
   2 struct menu_priv_s;
   3 typedef struct  menu_s menu_t;
   4
   5 typedef struct menu_def_st menu_def_t;
   6
   7 struct m_struct_st;
   8
   9 struct  menu_s {
  10   struct MPContext *ctx;
  11   void (*draw)(menu_t* menu,mp_image_t* mpi);
  12   void (*read_cmd)(menu_t* menu,int cmd);
  13   int (*read_key)(menu_t* menu,int cmd);
  14   void (*close)(menu_t* menu);
  15   struct m_struct_st* priv_st;
  16   struct menu_priv_s* priv;
  17   int show; // Draw it ?
  18   int cl; // Close request (user sent a close cmd or
  19   menu_t* parent;
  20   menu_def_t *type;
  21 };
  22
  23 typedef struct menu_info_s {
  24   const char *info;
  25   const char *name;
  26   const char *author;
  27   const char *comment;
  28   struct m_struct_st priv_st; // Config struct definition
  29   // cfg is a config struct as defined in cfg_st, it may be used as a priv struct
  30   // cfg is filled from the attributs found in the cfg file
  31   // the args param hold the content of the balise in the cfg file (if any)
  32   int (*open)(menu_t* menu, char* args);
  33 } menu_info_t;
  34
  35
  36 #define MENU_CMD_UP 0
  37 #define MENU_CMD_DOWN 1
  38 #define MENU_CMD_OK 2
  39 #define MENU_CMD_CANCEL 3
  40 #define MENU_CMD_LEFT 4
  41 #define MENU_CMD_RIGHT 5
  42 #define MENU_CMD_ACTION 6
  43 #define MENU_CMD_HOME 7
  44 #define MENU_CMD_END 8
  45 #define MENU_CMD_PAGE_UP 9
  46 #define MENU_CMD_PAGE_DOWN 10
  47 #define MENU_CMD_CLICK 11
  48
  49 /// Global init/uninit
  50 int menu_init(struct MPContext *mpctx, char* cfg_file);
  51 void menu_uninit(void);
  52
  53 /// Open a menu defined in the config file
  54 menu_t* menu_open(char *name);
  55
  56 void menu_draw(menu_t* menu,mp_image_t* mpi);
  57 void menu_read_cmd(menu_t* menu,int cmd);
  58 void menu_close(menu_t* menu);
  59 int menu_read_key(menu_t* menu,int cmd);
  60
  61 //// Default implementation
  62 int menu_dflt_read_key(menu_t* menu,int cmd);
  63
  64 /// Receive mouse position events.
  65 void menu_update_mouse_pos(double x, double y);
  66
  67 /////////// Helpers
  68
  69 #define MENU_TEXT_TOP   (1<<0)
  70 #define MENU_TEXT_VCENTER       (1<<1)
  71 #define MENU_TEXT_BOT   (1<<2)
  72 #define MENU_TEXT_VMASK (MENU_TEXT_TOP|MENU_TEXT_VCENTER|MENU_TEXT_BOT)
  73 #define MENU_TEXT_LEFT  (1<<3)
  74 #define MENU_TEXT_HCENTER       (1<<4)
  75 #define MENU_TEXT_RIGHT (1<<5)
  76 #define MENU_TEXT_HMASK (MENU_TEXT_LEFT|MENU_TEXT_HCENTER|MENU_TEXT_RIGHT)
  77 #define MENU_TEXT_CENTER        (MENU_TEXT_VCENTER|MENU_TEXT_HCENTER)
  78
  79 void menu_draw_text(mp_image_t* mpi, char* txt, int x, int y);
  80 int menu_text_length(char* txt);
  81 int menu_text_num_lines(char* txt, int max_width);
  82
  83 void menu_text_size(char* txt,int max_width,
  84                     int vspace, int warp,
  85                     int* _w, int* _h);
  86
  87 void menu_draw_text_full(mp_image_t* mpi,char* txt,
  88                          int x, int y,int w, int h,
  89                          int vspace, int warp, int align, int anchor);
  90
  91 void menu_draw_box(mp_image_t* mpi, unsigned char grey, unsigned char alpha, int x, int y, int w, int h);