rockbox/apps/tree.h
Christian Soffke 66a411a1ba Tree / Playlist Viewer / Menu: Fix redraw issues
1) Tree_lists was only initialized when booting the player.

In cases where a skin used custom UI viewports of
different sizes, when switching between screens, such as
between root menu, QuickScreen, and tree browser, this
caused list titles to appear with a significant delay,
unless a GUI_EVENT_ACTIONUPDATE was sent.

Tree_lists is now initialized when entering dirbrowse
or when restoring/reloading the list.

This eliminates multiple redundant UI refreshes when
entering the tree browser, due to gui_synclist_draw not
being called twice anymore and by being able to omit
GUI_EVENT_ACTIONUPDATE.

Separate calls to gui_synclist_init_display_settings
have become unnecessary since it is already called
by gui_synclist_init.

2) The synclist is also re-initialized when returning
from the QuickScreen in the Playlist Viewer or
regular menus, or when returning from Settings
menus

Change-Id: I2884249eda55f782e97abad9dc19b3d9d1267fc9
2022-12-08 00:38:59 -05:00

136 lines
5.1 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Daniel Stenberg
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _TREE_H_
#define _TREE_H_
#include <stdbool.h>
#include <applimits.h>
#include <file.h>
#include "config.h"
#include "icon.h"
/* keep this struct compatible (total size and name member)
* with struct tagtree_entry (tagtree.h) */
struct entry {
char *name;
int attr; /* FAT attributes + file type flags */
unsigned time_write; /* Last write time */
};
#define BROWSE_SELECTONLY 0x0001 /* exit on selecting a file */
#define BROWSE_NO_CONTEXT_MENU 0x0002 /* disable context menu */
#define BROWSE_RUNFILE 0x0004 /* do ft_open() on the file instead of browsing */
#define BROWSE_SELECTED 0x0100 /* this bit is set if user selected item */
struct tree_context;
struct tree_cache {
/* A big buffer with plenty of entry structs, contains all files and dirs
* in the current dir (with filters applied)
* Note that they're buflib-allocated and can therefore possibly move
* They need to be locked if used around yielding functions */
int entries_handle; /* handle to the entry cache */
int name_buffer_handle; /* handle to the name cache */
int max_entries; /* Max entries in the cache */
int name_buffer_size; /* in bytes */
};
struct browse_context {
int dirfilter;
unsigned flags; /* ored BROWSE_* */
bool (*callback_show_item)(char *name, int attr, struct tree_context *tc);
/* callback function to determine to show/hide
the item for custom browser */
char *title; /* title of the browser. if set to NULL,
directory name is used. */
enum themable_icons icon; /* title icon */
const char *root; /* full path of start directory */
const char *selected; /* name of selected file in the root */
char *buf; /* buffer to store selected file */
size_t bufsize; /* size of the buffer */
};
/* browser context for file or db */
struct tree_context {
/* The directory we are browsing */
char currdir[MAX_PATH];
/* the number of directories we have crossed from / */
int dirlevel;
/* The currently selected file/id3dbitem index (old dircursor+dirfile) */
int selected_item;
/* The selected item in each directory crossed
* (used when we want to return back to a previouws directory)*/
int selected_item_history[MAX_DIR_LEVELS];
int *dirfilter; /* file use */
int filesindir; /* The number of files in the dircache */
int dirsindir; /* file use */
int dirlength; /* total number of entries in dir, incl. those not loaded */
#ifdef HAVE_TAGCACHE
int currtable; /* db use */
int currextra; /* db use */
#endif
struct tree_cache cache;
bool dirfull;
int sort_dir; /* directory sort order */
struct browse_context *browse;
};
/*
* Call one of the two below after yields since the entrys may move inbetween */
struct entry* tree_get_entries(struct tree_context *t);
/* returns NULL on invalid index */
struct entry* tree_get_entry_at(struct tree_context *t, int index);
void tree_mem_init(void) INIT_ATTR;
void tree_init(void) INIT_ATTR;
char* get_current_file(char* buffer, size_t buffer_len);
void set_dirfilter(int l_dirfilter);
void set_current_file(const char *path);
void browse_context_init(struct browse_context *browse,
int dirfilter, unsigned flags,
char *title, enum themable_icons icon,
const char *root, const char *selected);
int rockbox_browse(struct browse_context *browse);
int create_playlist(void);
void resume_directory(const char *dir);
void tree_lock_cache(struct tree_context *t);
void tree_unlock_cache(struct tree_context *t);
#ifdef WIN32
/* it takes an int on windows */
#define getcwd_size_t int
#else
#define getcwd_size_t size_t
#endif
char *getcwd(char *buf, getcwd_size_t size);
void reload_directory(void);
bool check_rockboxdir(void);
struct tree_context* tree_get_context(void);
void tree_flush(void);
void tree_restore(void);
bool bookmark_play(char* resume_file, int index, unsigned long elapsed,
unsigned long offset, int seed, char *filename);
#endif