libkmid Library API Documentation

notearray.cc

00001 /**************************************************************************
00002 
00003     notearray.cc  - NoteArray class, which holds an array of notes
00004     This file is part of LibKMid 0.9.5
00005     Copyright (C) 1998,99,2000  Antonio Larrosa Jimenez
00006     LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libkmid.html            
00007 
00008     This library is free software; you can redistribute it and/or
00009     modify it under the terms of the GNU Library General Public
00010     License as published by the Free Software Foundation; either
00011     version 2 of the License, or (at your option) any later version.
00012  
00013     This library is distributed in the hope that it will be useful,
00014     but WITHOUT ANY WARRANTY; without even the implied warranty of
00015     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016     Library General Public License for more details.
00017  
00018     You should have received a copy of the GNU Library General Public License
00019     along with this library; see the file COPYING.LIB.  If not, write to
00020     the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00021     Boston, MA 02111-1307, USA.
00022 
00023     Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org>
00024 
00025 ***************************************************************************/
00026 
00027 #include "notearray.h"
00028 #include <string.h>
00029 
00030 NoteArray::NoteArray(void)
00031 {
00032   totalAllocated=50;
00033   data=new noteCmd[totalAllocated];
00034   lastAdded=0L;
00035 }
00036 
00037 NoteArray::~NoteArray()
00038 {
00039   delete data;
00040   totalAllocated=0;
00041 }
00042 
00043 NoteArray::noteCmd *NoteArray::pointerTo(ulong pos)
00044 {
00045   if (pos<totalAllocated) return &data[pos];
00046   while (pos>=totalAllocated)
00047   {
00048     noteCmd *tmp=new noteCmd[totalAllocated*2];
00049     memcpy(tmp,data,sizeof(noteCmd)*totalAllocated);
00050     delete data;
00051     data=tmp;
00052     totalAllocated*=2;
00053   }
00054   return &data[pos];
00055 }
00056 
00057 void NoteArray::at(ulong pos, ulong ms,int chn,int cmd,int note)
00058 {
00059   noteCmd *tmp=pointerTo(pos);
00060   tmp->ms=ms;
00061   tmp->chn=chn;
00062   tmp->cmd=cmd;
00063   tmp->note=note;
00064 }
00065 
00066 void NoteArray::at(ulong pos, noteCmd s)
00067 {
00068   noteCmd *tmp=pointerTo(pos);
00069   tmp->ms=s.ms;
00070   tmp->chn=s.chn;
00071   tmp->cmd=s.cmd;
00072   tmp->note=s.note;
00073 }
00074 
00075 NoteArray::noteCmd NoteArray::at(int pos)
00076 {
00077   return *pointerTo(pos);
00078 }
00079 
00080 void NoteArray::add(ulong ms,int chn,int cmd,int note)
00081 {
00082   if (lastAdded==NULL)
00083   {
00084     lastAdded=data;
00085     last=0;
00086   }
00087   else
00088   {
00089     last++;
00090     if (last==totalAllocated) lastAdded=pointerTo(totalAllocated);
00091     else lastAdded++;
00092   }
00093   lastAdded->ms=ms;
00094   lastAdded->chn=chn;
00095   lastAdded->cmd=cmd;
00096   lastAdded->note=note;
00097 }
00098 
00099 void NoteArray::next(void)
00100 {
00101   if (it==lastAdded) {it=NULL;return;};
00102   it++;
00103 }
00104 
00105 void NoteArray::moveIteratorTo(ulong ms,int *pgm)
00106 {
00107   noteCmd *ncmd;
00108   iteratorBegin();
00109   ncmd=get();
00110   int pgm2[16];
00111   for (int j=0;j<16;j++) pgm2[j]=0;
00112   while ((ncmd!=NULL)&&(ncmd->ms<ms))
00113   {
00114     if (ncmd->cmd==2) pgm2[ncmd->chn]=ncmd->note;
00115     next();
00116     ncmd=get();
00117   }
00118   if (pgm!=NULL)
00119   {
00120     for (int i=0;i<16;i++) pgm[i]=pgm2[i];
00121   }
00122 }
KDE Logo
This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
Generated on Wed Jan 28 13:28:29 2004 by doxygen 1.3.4 written by Dimitri van Heesch, © 1997-2001