apps/tree.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 Daniel Stenberg
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #ifndef _TREE_H_
  20 #define _TREE_H_
  21
  22 #include <stdbool.h>
  23 #include <applimits.h>
  24 #include <file.h>
  25
  26 struct entry {
  27     short attr; /* FAT attributes + file type flags */
  28     unsigned long time_write; /* Last write time */
  29     char *name;
  30 };
  31
  32
  33 /* browser context for file or db */
  34 struct tree_context {
  35     /* The directory we are browsing */
  36     char currdir[MAX_PATH];
  37     /* the number of directories we have crossed from / */
  38     int dirlevel;
  39     /* The currently selected file/id3dbitem index (old dircursor+dirfile) */
  40     int selected_item;
  41     /* The selected item in each directory crossed
  42      * (used when we want to return back to a previouws directory)*/
  43     int selected_item_history[MAX_DIR_LEVELS];
  44
  45     int firstpos; /* which dir entry is on first
  46                      position in dir buffer */
  47     int pos_history[MAX_DIR_LEVELS];
  48
  49     int *dirfilter; /* file use */
  50     int filesindir; /* The number of files in the dircache */
  51     int dirsindir; /* file use */
  52     int dirlength; /* total number of entries in dir, incl. those not loaded */
  53 #ifdef HAVE_TAGCACHE
  54     int table_history[MAX_DIR_LEVELS]; /* db use */
  55     int extra_history[MAX_DIR_LEVELS]; /* db use */
  56     int currtable; /* db use */
  57     int currextra; /* db use */
  58 #endif
  59     /* A big buffer with plenty of entry structs,
  60      * contains all files and dirs in the current
  61      * dir (with filters applied) */
  62     void* dircache;
  63     int dircache_size;
  64     char* name_buffer;
  65     int name_buffer_size;
  66     int dentry_size;
  67     bool dirfull;
  68 };
  69
  70 void tree_mem_init(void);
  71 void tree_gui_init(void);
  72 void get_current_file(char* buffer, int buffer_len);
  73 int rockbox_browse(const char *root, int dirfilter);
  74 bool create_playlist(void);
  75 void resume_directory(const char *dir);
  76 char *getcwd(char *buf, int size);
  77 void reload_directory(void);
  78 bool check_rockboxdir(void);
  79 struct tree_context* tree_get_context(void);
  80 void tree_flush(void);
  81 void tree_restore(void);
  82
  83
  84 extern struct gui_synclist tree_lists;
  85 extern struct gui_syncstatusbar statusbars;
  86 #endif