song.h

   1 /*
   2 Calf Box, an open source musical instrument.
   3 Copyright (C) 2010-2011 Krzysztof Foltman
   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 3 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
  16 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #ifndef CBOX_SONG_H
  20 #define CBOX_SONG_H
  21
  22 #include "dom.h"
  23 #include "pattern.h"
  24
  25 CBOX_EXTERN_CLASS(cbox_song)
  26
  27 struct cbox_track;
  28
  29 struct cbox_master_track_item
  30 {
  31     uint32_t duration_ppqn;
  32     // May be zero (= no change)
  33     double tempo;
  34     // Either both are zero (= no change) or both are non-zero
  35     int timesig_nom, timesig_denom;
  36 };
  37
  38 struct cbox_master_track
  39 {
  40     GList *items;
  41 };
  42
  43 struct cbox_song
  44 {
  45     CBOX_OBJECT_HEADER()
  46     struct cbox_command_target cmd_target;
  47     GList *master_track_items;
  48     GList *tracks;
  49     GList *patterns;
  50     gchar *lyrics_sheet, *chord_sheet;
  51     uint32_t loop_start_ppqn, loop_end_ppqn;
  52 };
  53
  54 extern struct cbox_song *cbox_song_new(struct cbox_document *document);
  55 extern void cbox_song_add_track(struct cbox_song *song, struct cbox_track *track);
  56 extern void cbox_song_remove_track(struct cbox_song *song, struct cbox_track *track);
  57 extern void cbox_song_clear(struct cbox_song *song);
  58 extern void cbox_song_use_looped_pattern(struct cbox_song *song, struct cbox_midi_pattern *pattern);
  59 extern void cbox_song_set_mti(struct cbox_song *song, uint32_t pos, double tempo, int timesig_nom, int timesig_denom);
  60 extern void cbox_song_destroy(struct cbox_song *song);
  61
  62 #endif