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146 lines
3.4 KiB
146 lines
3.4 KiB
/* notearray.h - NoteArray class, which holds an array of notes
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This file is part of LibKMid 0.9.5
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Copyright (C) 1998,99,2000 Antonio Larrosa Jimenez
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LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libtdemid.html
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org>
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***************************************************************************/
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#ifndef NOTEARRAY_H
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#define NOTEARRAY_H
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#include <libtdemid/dattypes.h>
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#include <tdelibs_export.h>
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/**
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* Holds a resizeable array of note on/off and patch change events. It can
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* increase it size, but it doesn't decreases (until destruction :-) )
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*
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* @short Stores an array of note on/off events
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* @version 0.9.5 17/01/2000
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* @author Antonio Larrosa Jimenez <larrosa@kde.org>
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*/
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class KMID_EXPORT NoteArray
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{
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private:
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class NoteArrayPrivate;
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NoteArrayPrivate *d;
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public:
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struct noteCmd {
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/**
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* ms from beginning of song
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*/
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ulong ms;
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/**
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* The channel
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*/
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int chn;
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/**
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* 0 note off, 1 note on, 2 change patch
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*/
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int cmd;
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/**
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* The note.
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*
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* If cmd==2, then the patch is stored in "note"
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*/
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int note;
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};
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private:
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noteCmd *data;
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ulong totalAllocated;
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ulong last;
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noteCmd *lastAdded;
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/**
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* @internal
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* The iterator
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*/
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noteCmd *it;
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noteCmd *pointerTo(ulong pos);
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public:
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/**
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* Constructor. Initializes internal variables.
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*/
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NoteArray(void);
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/**
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* Destructor.
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*/
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~NoteArray();
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/**
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* Adds (or modifies) an event in the given position .
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*
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* Note that this has nothing to do with what is being played, this just
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* modifies an internal array.
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*/
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void at(ulong pos, ulong ms,int chn,int cmd,int note);
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/**
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* A convenience function, which differs from the above in the parameters
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* it accepts.
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*/
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void at(ulong pos, noteCmd s);
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/**
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* Returns the note event at a given position.
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*/
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noteCmd at(int pos);
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/**
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* Adds a note/patch event at a given millisecond.
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*
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* Note: This method always appends at the end of the list.
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*/
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void add(ulong ms,int chn,int cmd,int note);
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/**
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* Initializes the iterator.
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*
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* @see get()
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* @see next()
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*/
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void iteratorBegin(void) { it=data; }
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/**
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* Get the command currently pointed to by the iterator.
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*/
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noteCmd *get(void) { return it; }
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/**
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* Advances the iterator to the next position.
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*/
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void next(void);
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/**
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* Calls next() until the next event is over ms milliseconds
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* and puts in @p pgm[16] the instruments used at this moment.
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*/
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void moveIteratorTo(ulong ms,int *pgm=NULL);
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};
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#endif
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