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  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #ifndef _TREE_H_
  22 #define _TREE_H_
  23
  24 #include <stdbool.h>
  25 #include <applimits.h>
  26 #include <file.h>
  27 #include "icon.h"
  28
  29 struct entry {
  30     short attr; /* FAT attributes + file type flags */
  31     unsigned long time_write; /* Last write time */
  32     char *name;
  33 };
  34
  35
  36 #define BROWSE_SELECTONLY       0x0001  /* exit on selecting a file */
  37 #define BROWSE_NO_CONTEXT_MENU  0x0002  /* disable context menu */
  38 #define BROWSE_SELECTED         0x0100  /* this bit is set if user selected item */
  39
  40 struct tree_context;
  41 struct tree_cache {
  42     /* A big buffer with plenty of entry structs,
  43      * contains all files and dirs in the current
  44      * dir (with filters applied) */
  45     void*   entries;
  46     char*   name_buffer;
  47     int     max_entries;      /* Max entries in the cache */
  48     int     name_buffer_size; /* in bytes */
  49 };
  50
  51 struct browse_context {
  52     int dirfilter;
  53     unsigned flags;             /* ored BROWSE_* */
  54     bool (*callback_show_item)(char *name, int attr, struct tree_context *tc);
  55                                 /* callback function to determine to show/hide
  56                                    the item for custom browser */
  57     char *title;                /* title of the browser. if set to NULL,
  58                                    directory name is used. */
  59     enum themable_icons icon;   /* title icon */
  60     const char *root;           /* full path of start directory */
  61     const char *selected;       /* name of selected file in the root */
  62     char *buf;                  /* buffer to store selected file */
  63     size_t bufsize;             /* size of the buffer */
  64 };
  65
  66 /* browser context for file or db */
  67 struct tree_context {
  68     /* The directory we are browsing */
  69     char currdir[MAX_PATH];
  70     /* the number of directories we have crossed from / */
  71     int dirlevel;
  72     /* The currently selected file/id3dbitem index (old dircursor+dirfile) */
  73     int selected_item;
  74     /* The selected item in each directory crossed
  75      * (used when we want to return back to a previouws directory)*/
  76     int selected_item_history[MAX_DIR_LEVELS];
  77
  78     int firstpos; /* which dir entry is on first
  79                      position in dir buffer */
  80     int pos_history[MAX_DIR_LEVELS];
  81
  82     int *dirfilter; /* file use */
  83     int filesindir; /* The number of files in the dircache */
  84     int dirsindir; /* file use */
  85     int dirlength; /* total number of entries in dir, incl. those not loaded */
  86 #ifdef HAVE_TAGCACHE
  87     int table_history[MAX_DIR_LEVELS]; /* db use */
  88     int extra_history[MAX_DIR_LEVELS]; /* db use */
  89     int currtable; /* db use */
  90     int currextra; /* db use */
  91 #endif
  92     struct tree_cache cache;
  93     bool dirfull;
  94     int sort_dir; /* directory sort order */
  95     struct browse_context *browse;
  96 };
  97
  98 void tree_drawlists(void);
  99 void tree_mem_init(void) INIT_ATTR;
 100 void tree_gui_init(void) INIT_ATTR;
 101 char* get_current_file(char* buffer, size_t buffer_len);
 102 void set_dirfilter(int l_dirfilter);
 103 void set_current_file(const char *path);
 104 void browse_context_init(struct browse_context *browse,
 105                          int dirfilter, unsigned flags,
 106                          char *title, enum themable_icons icon,
 107                          const char *root, const char *selected);
 108 int rockbox_browse(struct browse_context *browse);
 109 bool create_playlist(void);
 110 void resume_directory(const char *dir);
 111 #ifdef WIN32
 112 /* it takes an int on windows */
 113 #define getcwd_size_t int
 114 #else
 115 #define getcwd_size_t size_t
 116 #endif
 117 char *getcwd(char *buf, getcwd_size_t size);
 118 void reload_directory(void);
 119 bool check_rockboxdir(void);
 120 struct tree_context* tree_get_context(void);
 121 void tree_flush(void);
 122 void tree_restore(void);
 123
 124 bool bookmark_play(char* resume_file, int index, int offset, int seed,
 125                    char *filename);
 126
 127 extern struct gui_synclist tree_lists;
 128 #endif