src/screen_song.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2009 The Music Player Daemon Project
   3  * Project homepage: http://musicpd.org
   4
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "i18n.h"
  21 #include "screen.h"
  22 #include "screen_utils.h"
  23 #include "charset.h"
  24
  25 static list_window_t *lw;
  26
  27 static struct {
  28         struct mpd_song *song;
  29         GPtrArray *lines;
  30 } current;
  31
  32 static void
  33 screen_song_clear(void)
  34 {
  35         for (guint i = 0; i < current.lines->len; ++i)
  36                 g_free(g_ptr_array_index(current.lines, i));
  37
  38         g_ptr_array_set_size(current.lines, 0);
  39
  40         if (current.song != NULL) {
  41                 mpd_freeSong(current.song);
  42                 current.song = NULL;
  43         }
  44 }
  45
  46 static void
  47 screen_song_paint(void);
  48
  49 /**
  50  * Repaint and update the screen.
  51  */
  52 static void
  53 screen_song_repaint(void)
  54 {
  55         screen_song_paint();
  56         wrefresh(lw->w);
  57 }
  58
  59 static const char *
  60 screen_song_list_callback(unsigned idx, G_GNUC_UNUSED bool *highlight,
  61                           G_GNUC_UNUSED void *data)
  62 {
  63         static char buffer[256];
  64         char *value;
  65
  66         if (idx >= current.lines->len)
  67                 return NULL;
  68
  69         value = utf8_to_locale(g_ptr_array_index(current.lines, idx));
  70         g_strlcpy(buffer, value, sizeof(buffer));
  71         g_free(value);
  72
  73         return buffer;
  74 }
  75
  76
  77 static void
  78 screen_song_init(WINDOW *w, int cols, int rows)
  79 {
  80         current.lines = g_ptr_array_new();
  81         lw = list_window_init(w, cols, rows);
  82         lw->hide_cursor = true;
  83 }
  84
  85 static void
  86 screen_song_exit(void)
  87 {
  88         list_window_free(lw);
  89
  90         screen_song_clear();
  91
  92         g_ptr_array_free(current.lines, TRUE);
  93         current.lines = NULL;
  94 }
  95
  96 static void
  97 screen_song_resize(int cols, int rows)
  98 {
  99         lw->cols = cols;
 100         lw->rows = rows;
 101 }
 102
 103 static const char *
 104 screen_song_title(G_GNUC_UNUSED char *str, G_GNUC_UNUSED size_t size)
 105 {
 106         return _("Song viewer");
 107 }
 108
 109 static void
 110 screen_song_paint(void)
 111 {
 112         list_window_paint(lw, screen_song_list_callback, NULL);
 113 }
 114
 115 static bool
 116 screen_song_cmd(mpdclient_t *c, command_t cmd)
 117 {
 118         if (list_window_scroll_cmd(lw, current.lines->len, cmd)) {
 119                 screen_song_repaint();
 120                 return true;
 121         }
 122
 123         switch(cmd) {
 124         case CMD_LOCATE:
 125                 if (current.song != NULL) {
 126                         screen_file_goto_song(c, current.song);
 127                         return true;
 128                 }
 129
 130                 return false;
 131
 132 #ifdef ENABLE_LYRICS_SCREEN
 133         case CMD_SCREEN_LYRICS:
 134                 if (current.song != NULL) {
 135                         screen_lyrics_switch(c, current.song);
 136                         return true;
 137                 }
 138
 139                 return false;
 140 #endif
 141
 142         default:
 143                 break;
 144         }
 145
 146         if (screen_find(lw, current.lines->len,
 147                         cmd, screen_song_list_callback, NULL)) {
 148                 /* center the row */
 149                 list_window_center(lw, current.lines->len, lw->selected);
 150                 screen_song_repaint();
 151                 return true;
 152         }
 153
 154         return false;
 155 }
 156
 157 const struct screen_functions screen_song = {
 158         .init = screen_song_init,
 159         .exit = screen_song_exit,
 160         .resize = screen_song_resize,
 161         .paint = screen_song_paint,
 162         .cmd = screen_song_cmd,
 163         .get_title = screen_song_title,
 164 };
 165
 166 static void
 167 screen_song_append(const char *label, const char *value)
 168 {
 169         assert(label != NULL);
 170
 171         if (value != NULL)
 172                 g_ptr_array_add(current.lines,
 173                                 g_strdup_printf("%s: %s", label, value));
 174 }
 175
 176 void
 177 screen_song_switch(struct mpdclient *c, const struct mpd_song *song)
 178 {
 179         assert(song != NULL);
 180         assert(song->file != NULL);
 181
 182         screen_song_clear();
 183
 184         current.song = mpd_songDup(song);
 185
 186         g_ptr_array_add(current.lines, g_strdup(song->file));
 187
 188         screen_song_append(_("Artist"), song->artist);
 189         screen_song_append(_("Title"), song->title);
 190         screen_song_append(_("Album"), song->album);
 191         screen_song_append(_("Composer"), song->composer);
 192         screen_song_append(_("Name"), song->name);
 193         screen_song_append(_("Disc"), song->disc);
 194         screen_song_append(_("Track"), song->track);
 195         screen_song_append(_("Date"), song->date);
 196         screen_song_append(_("Genre"), song->genre);
 197         screen_song_append(_("Comment"), song->comment);
 198
 199         screen_switch(&screen_song, c);
 200 }