00acdfa6ef
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4124 a1c6a512-1295-4272-9138-f99709370657
848 lines
25 KiB
C
848 lines
25 KiB
C
/***************************************************************************
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*
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2003 Hardeep Sidhu
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <string.h>
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#include <sprintf.h>
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#include "playlist.h"
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#include "mpeg.h"
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#include "screens.h"
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#include "status.h"
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#include "settings.h"
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#include "icons.h"
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#include "menu.h"
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#include "plugin.h"
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#ifdef HAVE_LCD_BITMAP
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#include "widgets.h"
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#endif
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#include "lang.h"
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/* Defines for LCD display purposes. Taken from tree.c */
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#ifdef HAVE_LCD_BITMAP
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#define CURSOR_X (global_settings.scrollbar && \
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viewer.num_tracks>viewer.num_display_lines?1:0)
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#define CURSOR_Y 0
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#define CURSOR_WIDTH (global_settings.invert_cursor ? 0 : 4)
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#define ICON_WIDTH ((viewer.char_width > 6) ? viewer.char_width : 6)
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#define MARGIN_X ((global_settings.scrollbar && \
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viewer.num_tracks > viewer.num_display_lines ? \
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SCROLLBAR_WIDTH : 0) + CURSOR_WIDTH + ICON_WIDTH)
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#define MARGIN_Y (global_settings.statusbar ? STATUSBAR_HEIGHT : 0)
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#define LINE_X 0
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#define LINE_Y (global_settings.statusbar ? 1 : 0)
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#define SCROLLBAR_X 0
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#define SCROLLBAR_Y lcd_getymargin()
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#define SCROLLBAR_WIDTH 6
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#else
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#define MARGIN_X 0
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#define MARGIN_Y 0
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#define LINE_X 2
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#define LINE_Y 0
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#define CURSOR_X 0
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#define CURSOR_Y 0
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#endif
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/* Maximum number of tracks we can have loaded at one time */
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#define MAX_PLAYLIST_ENTRIES 200
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/* Index of track on display line _pos */
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#define INDEX(_pos) (viewer.first_display_index - viewer.first_index + (_pos))
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/* Global playlist viewer settings */
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struct playlist_viewer_info {
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char *name_buffer; /* Buffer used to store track names */
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int buffer_size; /* Size of name buffer */
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int num_display_lines; /* Number of lines on lcd */
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int line_height; /* Height (in pixels) of display line */
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int char_width; /* Width (in pixels) of a character */
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int num_tracks; /* Number of tracks in playlist */
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short current_playing_track;/* Index of current playing track */
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int num_loaded; /* Number of track entries loaded in viewer */
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int first_index; /* Index of first loaded track */
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int last_index; /* Index of last loaded track */
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int first_display_index; /* Index of first track on display */
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int last_display_index; /* Index of last track on display */
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int cursor_pos; /* Line number of cursor */
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int move_track; /* Playlist index of track to move or -1 */
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};
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/* Information about a specific track */
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struct playlist_entry {
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char *name; /* Formatted track name */
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int index; /* Playlist index */
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int display_index; /* Display index */
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bool queued; /* Is track queued? */
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};
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static struct playlist_viewer_info viewer;
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static struct playlist_entry tracks[MAX_PLAYLIST_ENTRIES];
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#ifdef HAVE_LCD_BITMAP
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extern unsigned char bitmap_icons_6x8[LastIcon][6];
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#endif
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static bool initialize(void);
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static void load_playlist_entries(int start_index);
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static void load_playlist_entries_r(int end_index);
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static int load_entry(int index, int pos, char* p, int size);
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static void format_name(char* dest, char* src);
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static void display_playlist(void);
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static void update_display_line(int line, bool scroll);
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static void scroll_display(int lines);
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static void update_first_index(void);
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static bool update_playlist(bool force);
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static int onplay_menu(int index);
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/* Initialize the playlist viewer */
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static bool initialize(void)
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{
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if (!(mpeg_status() & MPEG_STATUS_PLAY))
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/* Nothing is playing, exit */
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return false;
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viewer.name_buffer = plugin_get_buffer(&viewer.buffer_size);
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if (!viewer.name_buffer)
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return false;
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#ifdef HAVE_LCD_BITMAP
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{
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char icon_chars[] = "MQ"; /* characters used as icons */
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unsigned int i;
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viewer.char_width = 0;
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viewer.line_height = 0;
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/* Use icon characters to calculate largest possible width/height so
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that we set proper margins */
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for (i=0; i<sizeof(icon_chars); i++)
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{
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char str[2];
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int w, h;
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snprintf(str, sizeof(str), "%c", icon_chars[i]);
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lcd_getstringsize(str, &w, &h);
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if (w > viewer.char_width)
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viewer.char_width = w;
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if (h > viewer.line_height)
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{
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viewer.line_height = h;
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viewer.num_display_lines = (LCD_HEIGHT - MARGIN_Y)/h;
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}
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}
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}
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#else
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viewer.num_display_lines = 2;
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viewer.char_width = 1;
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viewer.line_height = 1;
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#endif
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viewer.cursor_pos = 0;
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viewer.move_track = -1;
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/* Start displaying at current playing track */
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viewer.first_display_index = playlist_get_display_index() - 1;
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update_first_index();
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if (!update_playlist(true))
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return false;
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return true;
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}
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/* Load tracks starting at start_index */
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static void load_playlist_entries(int start_index)
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{
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int num_entries = viewer.num_tracks - start_index;
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char* p = viewer.name_buffer;
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int remaining = viewer.buffer_size;
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int i;
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viewer.first_index = start_index;
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if (num_entries > MAX_PLAYLIST_ENTRIES)
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num_entries = MAX_PLAYLIST_ENTRIES;
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for(i=0; i<num_entries; i++, start_index++)
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{
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int len = load_entry(start_index, i, p, remaining);
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if (len < 0)
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{
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/* Out of name buffer space */
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num_entries = i;
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break;
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}
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p += len;
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remaining -= len;
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}
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viewer.num_loaded = num_entries;
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viewer.last_index = viewer.first_index + (viewer.num_loaded - 1);
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}
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/* Load tracks in reverse, ending at end_index */
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static void load_playlist_entries_r(int end_index)
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{
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int num_entries = end_index;
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char* p = viewer.name_buffer;
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int remaining = viewer.buffer_size;
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int i;
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viewer.last_index = end_index;
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if (num_entries > MAX_PLAYLIST_ENTRIES)
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num_entries = MAX_PLAYLIST_ENTRIES;
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for(i=num_entries; i>=0; i--, end_index--)
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{
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int len = load_entry(end_index, i, p, remaining);
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if (len < 0)
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{
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int j;
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/* Out of name buffer space */
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num_entries -= i;
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/* Shift loaded tracks up such that first track is index 0 */
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for (j=0; j<num_entries; j++, i++)
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{
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tracks[j].name = tracks[i].name;
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tracks[j].index = tracks[i].index;
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tracks[j].display_index = tracks[i].display_index;
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tracks[j].queued = tracks[i].queued;
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}
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break;
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}
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p += len;
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remaining -= len;
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}
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viewer.first_index = viewer.last_index - num_entries;
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num_entries++;
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if (!viewer.first_index &&
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num_entries < viewer.num_tracks &&
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num_entries < MAX_PLAYLIST_ENTRIES)
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{
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/* Lets see if we can load more data at the end of the list */
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int max = viewer.num_tracks;
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if (max > MAX_PLAYLIST_ENTRIES)
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max = MAX_PLAYLIST_ENTRIES;
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for (i = num_entries; i<max; i++)
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{
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int len = load_entry(num_entries, num_entries, p, remaining);
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if (len < 0)
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/* Out of name buffer space */
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break;
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p += len;
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remaining -= len;
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num_entries++;
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viewer.last_index++;
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}
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}
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viewer.num_loaded = num_entries;
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}
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/* Load track at playlist index. pos is the position in the tracks array and
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p is a pointer to the name buffer (max size), Returns -1 if buffer is
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full. */
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static int load_entry(int index, int pos, char* p, int size)
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{
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struct playlist_track_info info;
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int len;
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int result = 0;
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char name[MAX_PATH];
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/* Playlist viewer orders songs based on display index. We need to
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convert to real playlist index to access track */
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index = (index + playlist_get_first_index()) % viewer.num_tracks;
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if (playlist_get_track_info(index, &info) < 0)
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return -1;
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format_name(name, info.filename);
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len = strlen(name) + 1;
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if (len <= size)
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{
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strcpy(p, name);
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tracks[pos].name = p;
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tracks[pos].index = info.index;
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tracks[pos].display_index = info.display_index;
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tracks[pos].queued = info.attr & PLAYLIST_ATTR_QUEUED;
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result = len;
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}
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else
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result = -1;
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return result;
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}
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/* Format trackname for display purposes */
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static void format_name(char* dest, char* src)
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{
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char* p = strrchr(src, '/');
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int len;
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/* Only display the mp3 filename */
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strcpy(dest, p+1);
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len = strlen(dest);
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/* Remove the extension */
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if (!strcasecmp(&dest[len-4], ".mp3") ||
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!strcasecmp(&dest[len-4], ".mp2") ||
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!strcasecmp(&dest[len-4], ".mpa"))
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dest[len-4] = '\0';
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}
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/* Display tracks on screen */
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static void display_playlist(void)
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{
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int i;
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int num_display_tracks =
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viewer.last_display_index - viewer.first_display_index;
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lcd_clear_display();
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#ifdef HAVE_LCD_BITMAP
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lcd_setmargins(MARGIN_X, MARGIN_Y);
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lcd_setfont(FONT_UI);
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#endif
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for (i=0; i<=num_display_tracks; i++)
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{
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/* Icons */
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if (tracks[INDEX(i)].index == viewer.current_playing_track)
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{
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/* Current playing track */
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#ifdef HAVE_LCD_BITMAP
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int offset=0;
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if ( viewer.line_height > 8 )
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offset = (viewer.line_height - 8) / 2;
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lcd_bitmap(bitmap_icons_6x8[File],
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CURSOR_X * 6 + CURSOR_WIDTH,
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MARGIN_Y+(i*viewer.line_height) + offset,
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6, 8, true);
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#else
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lcd_putc(LINE_X-1, i, File);
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#endif
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}
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else if (tracks[INDEX(i)].index == viewer.move_track)
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{
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/* Track we are moving */
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#ifdef HAVE_LCD_BITMAP
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lcd_putsxy(CURSOR_X * 6 + CURSOR_WIDTH,
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MARGIN_Y+(i*viewer.line_height), "M");
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#else
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lcd_putc(LINE_X-1, i, 'M');
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#endif
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}
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else if (tracks[INDEX(i)].queued)
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{
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/* Queued track */
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#ifdef HAVE_LCD_BITMAP
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lcd_putsxy(CURSOR_X * 6 + CURSOR_WIDTH,
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MARGIN_Y+(i*viewer.line_height), "Q");
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#else
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lcd_putc(LINE_X-1, i, 'Q');
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#endif
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}
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update_display_line(i, false);
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}
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#ifdef HAVE_LCD_BITMAP
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if (global_settings.scrollbar &&
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(viewer.num_tracks > viewer.num_display_lines))
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scrollbar(SCROLLBAR_X, SCROLLBAR_Y, SCROLLBAR_WIDTH - 1,
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LCD_HEIGHT - SCROLLBAR_Y, viewer.num_tracks-1,
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viewer.first_display_index, viewer.last_display_index,
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VERTICAL);
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#endif
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put_cursorxy(CURSOR_X, CURSOR_Y + viewer.cursor_pos, true);
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status_draw(true);
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}
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/* Scroll cursor or display by num lines */
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static void scroll_display(int lines)
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{
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int new_index = viewer.first_display_index + viewer.cursor_pos + lines;
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bool pagescroll = false;
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bool wrap = false;
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put_cursorxy(CURSOR_X, CURSOR_Y + viewer.cursor_pos, false);
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if (lines > 1 || lines < -1)
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pagescroll = true;
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if (new_index < 0)
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{
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/* Wrap around if not pageup */
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if (pagescroll)
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new_index = 0;
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else
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{
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new_index += viewer.num_tracks;
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viewer.cursor_pos = viewer.num_display_lines-1;
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wrap = true;
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}
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}
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else if (new_index >= viewer.num_tracks)
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{
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/* Wrap around if not pagedown */
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if (pagescroll)
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new_index = viewer.num_tracks - 1;
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else
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{
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new_index -= viewer.num_tracks;
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viewer.cursor_pos = 0;
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wrap = true;
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}
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}
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if (new_index >= viewer.first_display_index &&
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new_index <= viewer.last_display_index)
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{
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/* Just update the cursor */
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viewer.cursor_pos = new_index - viewer.first_display_index;
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}
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else
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{
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/* New track is outside of display */
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if (wrap)
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viewer.first_display_index = new_index;
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else
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viewer.first_display_index = viewer.first_display_index + lines;
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if (viewer.first_display_index < 0)
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viewer.first_display_index = 0;
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viewer.last_display_index =
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viewer.first_display_index + (viewer.num_display_lines - 1);
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if (viewer.last_display_index >= viewer.num_tracks)
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{
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/* display as many tracks as possible on screen */
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if (viewer.first_display_index > 0)
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{
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viewer.first_display_index -=
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(viewer.last_display_index - viewer.num_tracks + 1);
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if (viewer.first_display_index < 0)
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viewer.first_display_index = 0;
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}
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viewer.last_display_index = viewer.num_tracks - 1;
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}
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if (viewer.cursor_pos >
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(viewer.last_display_index - viewer.first_display_index))
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viewer.cursor_pos =
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viewer.last_display_index - viewer.first_display_index;
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/* Load more data if needed */
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if (viewer.first_display_index < viewer.first_index)
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load_playlist_entries_r(viewer.last_display_index);
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else if (viewer.last_display_index > viewer.last_index)
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load_playlist_entries(viewer.first_display_index);
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display_playlist();
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}
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put_cursorxy(CURSOR_X, CURSOR_Y + viewer.cursor_pos, true);
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}
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/* Update lcd line. Scroll line if requested */
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static void update_display_line(int line, bool scroll)
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{
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char str[MAX_PATH + 16];
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snprintf(str, sizeof(str), "%d. %s",
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tracks[INDEX(line)].display_index,
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tracks[INDEX(line)].name);
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if (scroll)
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{
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#ifdef HAVE_LCD_BITMAP
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if (global_settings.invert_cursor)
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lcd_puts_scroll_style(LINE_X, line, str, STYLE_INVERT);
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else
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#endif
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lcd_puts_scroll(LINE_X, line, str);
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}
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else
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lcd_puts(LINE_X, line, str);
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}
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|
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/* Update first index, if necessary, to put as much as possible on the
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screen */
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static void update_first_index(void)
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{
|
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/* viewer.num_tracks may be invalid at this point */
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int num_tracks = playlist_amount();
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if ((num_tracks - viewer.first_display_index) < viewer.num_display_lines)
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{
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/* Try to display as much as possible */
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int old_index = viewer.first_display_index;
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viewer.first_display_index = num_tracks - viewer.num_display_lines;
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if (viewer.first_display_index < 0)
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viewer.first_display_index = 0;
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/* Cursor should still point at current track */
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viewer.cursor_pos += old_index - viewer.first_display_index;
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}
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}
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|
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/* Update playlist in case something has changed or forced */
|
|
static bool update_playlist(bool force)
|
|
{
|
|
playlist_get_resume_info(&viewer.current_playing_track);
|
|
|
|
if (force || playlist_amount() != viewer.num_tracks)
|
|
{
|
|
int index;
|
|
|
|
/* Reload tracks */
|
|
viewer.num_tracks = playlist_amount();
|
|
if (viewer.num_tracks < 0)
|
|
return false;
|
|
|
|
index = viewer.first_display_index;
|
|
|
|
load_playlist_entries(index);
|
|
|
|
if (viewer.num_loaded <= 0)
|
|
return false;
|
|
|
|
viewer.first_display_index = viewer.first_index;
|
|
viewer.last_display_index =
|
|
viewer.first_index + viewer.num_display_lines - 1;
|
|
if (viewer.last_display_index >= viewer.num_tracks)
|
|
viewer.last_display_index = viewer.num_tracks - 1;
|
|
}
|
|
|
|
display_playlist();
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Menu of playlist commands. Invoked via ON+PLAY on main viewer screen.
|
|
Returns -1 if USB attached, 0 if no playlist change, and 1 if playlist
|
|
changed. */
|
|
static int onplay_menu(int index)
|
|
{
|
|
struct menu_items menu[2]; /* increase this if you add entries! */
|
|
int m, i=0, result, ret = 0;
|
|
bool current = (tracks[index].index == viewer.current_playing_track);
|
|
|
|
menu[i].desc = str(LANG_DELETE);
|
|
i++;
|
|
|
|
menu[i].desc = str(LANG_MOVE);
|
|
i++;
|
|
|
|
m = menu_init(menu, i);
|
|
result = menu_show(m);
|
|
if (result == MENU_ATTACHED_USB)
|
|
ret = -1;
|
|
else if (result >= 0)
|
|
{
|
|
/* Abort current move */
|
|
viewer.move_track = -1;
|
|
|
|
switch (result)
|
|
{
|
|
case 0:
|
|
/* delete track */
|
|
if (current)
|
|
mpeg_stop();
|
|
|
|
playlist_delete(tracks[index].index);
|
|
|
|
if (current)
|
|
{
|
|
/* Start playing new track except if it's the last track
|
|
in the playlist and repeat mode is disabled */
|
|
if (tracks[index].display_index != viewer.num_tracks ||
|
|
global_settings.repeat_mode == REPEAT_ALL)
|
|
{
|
|
mpeg_play(0);
|
|
viewer.current_playing_track = -1;
|
|
}
|
|
}
|
|
|
|
ret = 1;
|
|
break;
|
|
case 1:
|
|
/* move track */
|
|
viewer.move_track = tracks[index].index;
|
|
ret = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
menu_exit(m);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Main viewer function */
|
|
bool playlist_viewer(void)
|
|
{
|
|
bool exit=false; /* exit viewer */
|
|
bool update=true; /* update display */
|
|
bool cursor_on=true; /* used for flashing cursor */
|
|
int old_cursor_pos; /* last cursor position */
|
|
int button;
|
|
|
|
if (!initialize())
|
|
return false;
|
|
|
|
old_cursor_pos = viewer.cursor_pos;
|
|
|
|
while (!exit)
|
|
{
|
|
short track;
|
|
|
|
/* Timeout so we can determine if play status has changed */
|
|
button = button_get_w_tmo(HZ/2);
|
|
|
|
if (!(mpeg_status() & MPEG_STATUS_PLAY))
|
|
{
|
|
/* Play has stopped */
|
|
#ifdef HAVE_LCD_CHARCELLS
|
|
splash(HZ, 0, true, str(LANG_END_PLAYLIST_PLAYER));
|
|
#else
|
|
splash(HZ, 0, true, str(LANG_END_PLAYLIST_RECORDER));
|
|
#endif
|
|
status_set_playmode(STATUS_STOP);
|
|
return false;;
|
|
}
|
|
|
|
if (viewer.move_track != -1 || !cursor_on)
|
|
{
|
|
/* Flash cursor to identify that we are moving a track */
|
|
cursor_on = !cursor_on;
|
|
#ifdef HAVE_LCD_BITMAP
|
|
if (global_settings.invert_cursor)
|
|
{
|
|
lcd_invertrect(
|
|
MARGIN_X, MARGIN_Y+(viewer.cursor_pos*viewer.line_height),
|
|
LCD_WIDTH, viewer.line_height);
|
|
lcd_invertscroll(LINE_X, viewer.cursor_pos);
|
|
}
|
|
else
|
|
put_cursorxy(CURSOR_X, CURSOR_Y + viewer.cursor_pos,
|
|
cursor_on);
|
|
|
|
lcd_update_rect(
|
|
0, MARGIN_Y + (viewer.cursor_pos * viewer.line_height),
|
|
LCD_WIDTH, viewer.line_height);
|
|
#else
|
|
put_cursorxy(CURSOR_X, CURSOR_Y + viewer.cursor_pos, cursor_on);
|
|
lcd_update();
|
|
#endif
|
|
}
|
|
|
|
playlist_get_resume_info(&track);
|
|
|
|
if (track != viewer.current_playing_track ||
|
|
playlist_amount() != viewer.num_tracks)
|
|
{
|
|
/* Playlist has changed (new track started?) */
|
|
update_first_index();
|
|
if (!update_playlist(false))
|
|
exit = true;
|
|
else
|
|
update = true;
|
|
|
|
/* Abort move on playlist change */
|
|
viewer.move_track = -1;
|
|
}
|
|
|
|
switch (button)
|
|
{
|
|
#ifdef HAVE_RECORDER_KEYPAD
|
|
case BUTTON_OFF:
|
|
case BUTTON_LEFT:
|
|
#else
|
|
case BUTTON_STOP:
|
|
#endif
|
|
exit = true;
|
|
break;
|
|
|
|
#ifdef HAVE_RECORDER_KEYPAD
|
|
case BUTTON_UP:
|
|
case BUTTON_UP | BUTTON_REPEAT:
|
|
#else
|
|
case BUTTON_LEFT:
|
|
case BUTTON_LEFT | BUTTON_REPEAT:
|
|
#endif
|
|
scroll_display(-1);
|
|
update = true;
|
|
break;
|
|
|
|
#ifdef HAVE_RECORDER_KEYPAD
|
|
case BUTTON_DOWN:
|
|
case BUTTON_DOWN | BUTTON_REPEAT:
|
|
#else
|
|
case BUTTON_RIGHT:
|
|
case BUTTON_RIGHT | BUTTON_REPEAT:
|
|
#endif
|
|
scroll_display(1);
|
|
update = true;
|
|
break;
|
|
|
|
#ifdef HAVE_RECORDER_KEYPAD
|
|
case BUTTON_ON | BUTTON_UP:
|
|
case BUTTON_ON | BUTTON_UP | BUTTON_REPEAT:
|
|
#else
|
|
case BUTTON_ON | BUTTON_LEFT:
|
|
case BUTTON_ON | BUTTON_LEFT | BUTTON_REPEAT:
|
|
#endif
|
|
/* Pageup */
|
|
scroll_display(-viewer.num_display_lines);
|
|
update = true;
|
|
break;
|
|
|
|
#ifdef HAVE_RECORDER_KEYPAD
|
|
case BUTTON_ON | BUTTON_DOWN:
|
|
case BUTTON_ON | BUTTON_DOWN | BUTTON_REPEAT:
|
|
#else
|
|
case BUTTON_ON | BUTTON_RIGHT:
|
|
case BUTTON_ON | BUTTON_RIGHT | BUTTON_REPEAT:
|
|
#endif
|
|
/* Pagedown */
|
|
scroll_display(viewer.num_display_lines);
|
|
update = true;
|
|
break;
|
|
|
|
#ifdef HAVE_RECORDER_KEYPAD
|
|
case BUTTON_RIGHT:
|
|
#endif
|
|
case BUTTON_PLAY:
|
|
if (viewer.move_track >= 0)
|
|
{
|
|
/* Move track */
|
|
int ret;
|
|
|
|
ret = playlist_move(viewer.move_track,
|
|
tracks[INDEX(viewer.cursor_pos)].index);
|
|
if (ret < 0)
|
|
splash(HZ, 0, true, str(LANG_MOVE_FAILED));
|
|
|
|
update_playlist(true);
|
|
viewer.move_track = -1;
|
|
}
|
|
else
|
|
{
|
|
/* Stop current track and play new track */
|
|
mpeg_stop();
|
|
playlist_start(tracks[INDEX(viewer.cursor_pos)].index, 0);
|
|
status_set_playmode(STATUS_PLAY);
|
|
update_playlist(false);
|
|
}
|
|
|
|
display_playlist();
|
|
update = true;
|
|
break;
|
|
|
|
case BUTTON_ON | BUTTON_PLAY:
|
|
{
|
|
/* ON+PLAY menu */
|
|
int ret;
|
|
|
|
ret = onplay_menu(INDEX(viewer.cursor_pos));
|
|
|
|
if (ret < 0)
|
|
/* USB attached */
|
|
return true;
|
|
else if (ret > 0)
|
|
{
|
|
/* Playlist changed */
|
|
update_first_index();
|
|
update_playlist(true);
|
|
if (viewer.num_tracks <= 0)
|
|
exit = true;
|
|
}
|
|
else
|
|
display_playlist();
|
|
|
|
update = true;
|
|
break;
|
|
}
|
|
case SYS_USB_CONNECTED:
|
|
usb_screen();
|
|
return true;
|
|
}
|
|
|
|
if (update && !exit)
|
|
{
|
|
lcd_stop_scroll();
|
|
|
|
if (viewer.cursor_pos >
|
|
(viewer.last_display_index - viewer.first_display_index))
|
|
{
|
|
/* Cursor position is invalid */
|
|
put_cursorxy(CURSOR_X, CURSOR_Y + viewer.cursor_pos, false);
|
|
viewer.cursor_pos =
|
|
viewer.last_display_index - viewer.first_display_index;
|
|
put_cursorxy(CURSOR_X, CURSOR_Y + viewer.cursor_pos, true);
|
|
}
|
|
|
|
if (viewer.cursor_pos != old_cursor_pos &&
|
|
old_cursor_pos <=
|
|
(viewer.last_display_index - viewer.first_display_index))
|
|
/* Stop scrolling previous line */
|
|
update_display_line(old_cursor_pos, false);
|
|
|
|
/* Scroll line at new cursor position */
|
|
update_display_line(viewer.cursor_pos, true);
|
|
|
|
lcd_update();
|
|
|
|
old_cursor_pos = viewer.cursor_pos;
|
|
cursor_on = true;
|
|
update = false;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|