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 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
  40 static void
  41 screen_song_paint(void);
  42
  43 /**
  44  * Repaint and update the screen.
  45  */
  46 static void
  47 screen_song_repaint(void)
  48 {
  49         screen_song_paint();
  50         wrefresh(lw->w);
  51 }
  52
  53 static const char *
  54 screen_song_list_callback(unsigned idx, G_GNUC_UNUSED int *highlight,
  55                           G_GNUC_UNUSED void *data)
  56 {
  57         static char buffer[256];
  58         char *value;
  59
  60         if (idx >= current.lines->len)
  61                 return NULL;
  62
  63         value = utf8_to_locale(g_ptr_array_index(current.lines, idx));
  64         g_strlcpy(buffer, value, sizeof(buffer));
  65         g_free(value);
  66
  67         return buffer;
  68 }
  69
  70
  71 static void
  72 screen_song_init(WINDOW *w, int cols, int rows)
  73 {
  74         current.lines = g_ptr_array_new();
  75         lw = list_window_init(w, cols, rows);
  76         lw->flags = LW_HIDE_CURSOR;
  77 }
  78
  79 static void
  80 screen_song_exit(void)
  81 {
  82         list_window_free(lw);
  83
  84         screen_song_clear();
  85
  86         g_ptr_array_free(current.lines, TRUE);
  87         current.lines = NULL;
  88 }
  89
  90 static void
  91 screen_song_resize(int cols, int rows)
  92 {
  93         lw->cols = cols;
  94         lw->rows = rows;
  95 }
  96
  97 static const char *
  98 screen_song_title(G_GNUC_UNUSED char *str, G_GNUC_UNUSED size_t size)
  99 {
 100         return _("Song viewer");
 101 }
 102
 103 static void
 104 screen_song_paint(void)
 105 {
 106         list_window_paint(lw, screen_song_list_callback, NULL);
 107 }
 108
 109 static bool
 110 screen_song_cmd(mpdclient_t *c, command_t cmd)
 111 {
 112         if (list_window_scroll_cmd(lw, current.lines->len, cmd)) {
 113                 screen_song_repaint();
 114                 return true;
 115         }
 116
 117         switch(cmd) {
 118         case CMD_LOCATE:
 119                 if (current.song != NULL) {
 120                         screen_file_goto_song(c, current.song);
 121                         return true;
 122                 }
 123
 124                 return false;
 125
 126         default:
 127                 break;
 128         }
 129
 130         if (screen_find(lw, current.lines->len,
 131                         cmd, screen_song_list_callback, NULL)) {
 132                 /* center the row */
 133                 list_window_center(lw, current.lines->len, lw->selected);
 134                 screen_song_repaint();
 135                 return true;
 136         }
 137
 138         return false;
 139 }
 140
 141 const struct screen_functions screen_song = {
 142         .init = screen_song_init,
 143         .exit = screen_song_exit,
 144         .resize = screen_song_resize,
 145         .paint = screen_song_paint,
 146         .cmd = screen_song_cmd,
 147         .get_title = screen_song_title,
 148 };
 149
 150 static void
 151 screen_song_append(const char *label, const char *value)
 152 {
 153         assert(label != NULL);
 154
 155         if (value != NULL)
 156                 g_ptr_array_add(current.lines,
 157                                 g_strdup_printf("%s: %s", label, value));
 158 }
 159
 160 void
 161 screen_song_switch(struct mpdclient *c, const struct mpd_song *song)
 162 {
 163         assert(song != NULL);
 164         assert(song->file != NULL);
 165
 166         screen_song_clear();
 167
 168         current.song = mpd_songDup(song);
 169
 170         g_ptr_array_add(current.lines, g_strdup(song->file));
 171
 172         screen_song_append(_("Artist"), song->artist);
 173         screen_song_append(_("Title"), song->title);
 174         screen_song_append(_("Album"), song->album);
 175         screen_song_append(_("Composer"), song->composer);
 176         screen_song_append(_("Name"), song->name);
 177         screen_song_append(_("Disc"), song->disc);
 178         screen_song_append(_("Track"), song->track);
 179         screen_song_append(_("Date"), song->date);
 180         screen_song_append(_("Genre"), song->genre);
 181         screen_song_append(_("Comment"), song->comment);
 182
 183         screen_switch(&screen_song, c);
 184 }