libmenu/menu.h

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #ifndef MPLAYER_MENU_H
  20 #define MPLAYER_MENU_H
  21
  22 #include "m_struct.h"
  23 #include "libmpcodecs/mp_image.h"
  24
  25 struct menu_priv_s;
  26 typedef struct  menu_s menu_t;
  27
  28 typedef struct menu_def_st menu_def_t;
  29
  30 struct m_struct_st;
  31
  32 struct  menu_s {
  33   struct MPContext *ctx;
  34   void (*draw)(menu_t* menu,mp_image_t* mpi);
  35   void (*read_cmd)(menu_t* menu,int cmd);
  36   int (*read_key)(menu_t* menu,int cmd);
  37   void (*close)(menu_t* menu);
  38   struct m_struct_st* priv_st;
  39   struct menu_priv_s* priv;
  40   int show; // Draw it ?
  41   int cl; // Close request (user sent a close cmd or
  42   menu_t* parent;
  43   menu_def_t *type;
  44 };
  45
  46 typedef struct menu_info_s {
  47   const char *info;
  48   const char *name;
  49   const char *author;
  50   const char *comment;
  51   struct m_struct_st priv_st; // Config struct definition
  52   // cfg is a config struct as defined in cfg_st, it may be used as a priv struct
  53   // cfg is filled from the attributs found in the cfg file
  54   // the args param hold the content of the balise in the cfg file (if any)
  55   int (*open)(menu_t* menu, char* args);
  56 } menu_info_t;
  57
  58
  59 #define MENU_CMD_UP 0
  60 #define MENU_CMD_DOWN 1
  61 #define MENU_CMD_OK 2
  62 #define MENU_CMD_CANCEL 3
  63 #define MENU_CMD_LEFT 4
  64 #define MENU_CMD_RIGHT 5
  65 #define MENU_CMD_ACTION 6
  66 #define MENU_CMD_HOME 7
  67 #define MENU_CMD_END 8
  68 #define MENU_CMD_PAGE_UP 9
  69 #define MENU_CMD_PAGE_DOWN 10
  70 #define MENU_CMD_CLICK 11
  71
  72 /// Global init/uninit
  73 int menu_init(struct MPContext *mpctx, char* cfg_file);
  74 void menu_uninit(void);
  75
  76 /// Open a menu defined in the config file
  77 menu_t* menu_open(char *name);
  78
  79 void menu_draw(menu_t* menu,mp_image_t* mpi);
  80 void menu_read_cmd(menu_t* menu,int cmd);
  81 void menu_close(menu_t* menu);
  82 int menu_read_key(menu_t* menu,int cmd);
  83
  84 //// Default implementation
  85 int menu_dflt_read_key(menu_t* menu,int cmd);
  86
  87 /// Receive mouse position events.
  88 void menu_update_mouse_pos(double x, double y);
  89
  90 /////////// Helpers
  91
  92 #define MENU_TEXT_TOP   (1<<0)
  93 #define MENU_TEXT_VCENTER       (1<<1)
  94 #define MENU_TEXT_BOT   (1<<2)
  95 #define MENU_TEXT_VMASK (MENU_TEXT_TOP|MENU_TEXT_VCENTER|MENU_TEXT_BOT)
  96 #define MENU_TEXT_LEFT  (1<<3)
  97 #define MENU_TEXT_HCENTER       (1<<4)
  98 #define MENU_TEXT_RIGHT (1<<5)
  99 #define MENU_TEXT_HMASK (MENU_TEXT_LEFT|MENU_TEXT_HCENTER|MENU_TEXT_RIGHT)
 100 #define MENU_TEXT_CENTER        (MENU_TEXT_VCENTER|MENU_TEXT_HCENTER)
 101
 102 void menu_draw_text(mp_image_t* mpi, char* txt, int x, int y);
 103 int menu_text_length(char* txt);
 104 int menu_text_num_lines(char* txt, int max_width);
 105
 106 void menu_text_size(char* txt,int max_width,
 107                     int vspace, int warp,
 108                     int* _w, int* _h);
 109
 110 void menu_draw_text_full(mp_image_t* mpi,char* txt,
 111                          int x, int y,int w, int h,
 112                          int vspace, int warp, int align, int anchor);
 113
 114 void menu_draw_box(mp_image_t* mpi, unsigned char grey, unsigned char alpha, int x, int y, int w, int h);
 115
 116 #endif /* MPLAYER_MENU_H */