src/screen_song.c

   1 /*
   2  * Copyright (C) 2008 Max Kellermann <max@duempel.org>
   3  *
   4  * This program 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  * This program 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  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  *
  17  */
  18
  19 #include "i18n.h"
  20 #include "screen.h"
  21 #include "screen_utils.h"
  22 #include "charset.h"
  23
  24 static list_window_t *lw;
  25
  26 static struct {
  27         struct mpd_song *song;
  28         GPtrArray *lines;
  29 } current;
  30
  31 static void
  32 screen_song_clear(void)
  33 {
  34         for (guint i = 0; i < current.lines->len; ++i)
  35                 g_free(g_ptr_array_index(current.lines, i));
  36
  37         g_ptr_array_set_size(current.lines, 0);
  38
  39         if (current.song != NULL) {
  40                 mpd_freeSong(current.song);
  41                 current.song = NULL;
  42         }
  43 }
  44
  45 static void
  46 screen_song_paint(void);
  47
  48 /**
  49  * Repaint and update the screen.
  50  */
  51 static void
  52 screen_song_repaint(void)
  53 {
  54         screen_song_paint();
  55         wrefresh(lw->w);
  56 }
  57
  58 static const char *
  59 screen_song_list_callback(unsigned idx, G_GNUC_UNUSED bool *highlight,
  60                           G_GNUC_UNUSED void *data)
  61 {
  62         static char buffer[256];
  63         char *value;
  64
  65         if (idx >= current.lines->len)
  66                 return NULL;
  67
  68         value = utf8_to_locale(g_ptr_array_index(current.lines, idx));
  69         g_strlcpy(buffer, value, sizeof(buffer));
  70         g_free(value);
  71
  72         return buffer;
  73 }
  74
  75
  76 static void
  77 screen_song_init(WINDOW *w, int cols, int rows)
  78 {
  79         current.lines = g_ptr_array_new();
  80         lw = list_window_init(w, cols, rows);
  81         lw->hide_cursor = true;
  82 }
  83
  84 static void
  85 screen_song_exit(void)
  86 {
  87         list_window_free(lw);
  88
  89         screen_song_clear();
  90
  91         g_ptr_array_free(current.lines, TRUE);
  92         current.lines = NULL;
  93 }
  94
  95 static void
  96 screen_song_resize(int cols, int rows)
  97 {
  98         lw->cols = cols;
  99         lw->rows = rows;
 100 }
 101
 102 static const char *
 103 screen_song_title(G_GNUC_UNUSED char *str, G_GNUC_UNUSED size_t size)
 104 {
 105         return _("Song viewer");
 106 }
 107
 108 static void
 109 screen_song_paint(void)
 110 {
 111         list_window_paint(lw, screen_song_list_callback, NULL);
 112 }
 113
 114 static bool
 115 screen_song_cmd(mpdclient_t *c, command_t cmd)
 116 {
 117         if (list_window_scroll_cmd(lw, current.lines->len, cmd)) {
 118                 screen_song_repaint();
 119                 return true;
 120         }
 121
 122         switch(cmd) {
 123         case CMD_LOCATE:
 124                 if (current.song != NULL) {
 125                         screen_file_goto_song(c, current.song);
 126                         return true;
 127                 }
 128
 129                 return false;
 130
 131 #ifdef ENABLE_LYRICS_SCREEN
 132         case CMD_SCREEN_LYRICS:
 133                 if (current.song != NULL) {
 134                         screen_lyrics_switch(c, current.song);
 135                         return true;
 136                 }
 137
 138                 return false;
 139 #endif
 140
 141         default:
 142                 break;
 143         }
 144
 145         if (screen_find(lw, current.lines->len,
 146                         cmd, screen_song_list_callback, NULL)) {
 147                 /* center the row */
 148                 list_window_center(lw, current.lines->len, lw->selected);
 149                 screen_song_repaint();
 150                 return true;
 151         }
 152
 153         return false;
 154 }
 155
 156 const struct screen_functions screen_song = {
 157         .init = screen_song_init,
 158         .exit = screen_song_exit,
 159         .resize = screen_song_resize,
 160         .paint = screen_song_paint,
 161         .cmd = screen_song_cmd,
 162         .get_title = screen_song_title,
 163 };
 164
 165 static void
 166 screen_song_append(const char *label, const char *value)
 167 {
 168         assert(label != NULL);
 169
 170         if (value != NULL)
 171                 g_ptr_array_add(current.lines,
 172                                 g_strdup_printf("%s: %s", label, value));
 173 }
 174
 175 void
 176 screen_song_switch(struct mpdclient *c, const struct mpd_song *song)
 177 {
 178         assert(song != NULL);
 179         assert(song->file != NULL);
 180
 181         screen_song_clear();
 182
 183         current.song = mpd_songDup(song);
 184
 185         g_ptr_array_add(current.lines, g_strdup(song->file));
 186
 187         screen_song_append(_("Artist"), song->artist);
 188         screen_song_append(_("Title"), song->title);
 189         screen_song_append(_("Album"), song->album);
 190         screen_song_append(_("Composer"), song->composer);
 191         screen_song_append(_("Name"), song->name);
 192         screen_song_append(_("Disc"), song->disc);
 193         screen_song_append(_("Track"), song->track);
 194         screen_song_append(_("Date"), song->date);
 195         screen_song_append(_("Genre"), song->genre);
 196         screen_song_append(_("Comment"), song->comment);
 197
 198         screen_switch(&screen_song, c);
 199 }