/Users/garethloy/Musimathics/Musimat1.2/MusimatLib/Pitch.cpp

Go to the documentation of this file.

/* $Revision: 1.5 $ $Date: 2006/09/08 18:55:37 $ $Author: dgl $ $Name:  $ $Id: Pitch.cpp,v 1.5 2006/09/08 18:55:37 dgl Exp $ */
// The Musimat Tutorial � 2006 Gareth Loy
// Derived from Chapter 9 and Appendix B of "Musimathics Vol. 1" � 2006 Gareth Loy 
// and published exclusively by The MIT Press.
// This program is released WITHOUT ANY WARRANTY; without even the implied 
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
// For information on usage and redistribution, and for a DISCLAIMER OF ALL
// WARRANTIES, see the file, "LICENSE.txt," in this distribution.
// "Musimathics" is available here:     http://mitpress.mit.edu/catalog/item/default.asp?ttype=2&tid=10916
// Gareth Loy's Musimathics website:    http://www.musimathics.com/
// The Musimat website:                 http://www.musimat.com/
// This program is released under the terms of the GNU General Public License
// available here:                      http://www.gnu.org/licenses/gpl.txt

#include "Musimat.h"

char Pitch::s_buf[16];                                          
String Pitch::s_pcNames = (char*)"CCDDEFFGGAAB";        
Real Pitch::s_HzReference = 440.0;                      
Integer Pitch::s_nDegrees = 12;                         
Integer Pitch::s_lowestDegree = 0;                      
Integer Pitch::s_highestDegree = 88;            

ostream& operator<<( ostream& os, Pitch& p ) 
{
        os << p.print();
        Return os;
}

inline Bool isnumeric(char c)
{
        Return c >= '0' && c <= '9';
}

inline Bool inRange(char c, char lb, char ub)
{
        Return c >= lb && c <= ub;
}

istream& operator>>( istream& is, Pitch& p ) 
{
        //char buf[16];
        //cin >> buf;
        //p = Pitch(buf);
        //Return is;
        char c;
        cin >> c;
        If ((p.m_pc = p.isPitchClass(c)) == -1) {
                cin.unget();
                Return is;
        }

        Integer acc = 0;
        While (cin >> c && ((acc = p.isAccidental(c)) != -3)) {
                p.m_acc += acc;
        }

        If (!inRange(c, '0', '9')) {
                cin.unget();
                Return is;
        } Else {
                char buf[16];
                char* b = buf;
                Integer cnt = 0;
                cin.unget(); 
                While (!cin.eof() && cin >> c && isnumeric(c) && cnt++ < 16) {
//                      char y = cin.eof();
                        *b++ = c;
                }
                cin.unget();
                *b = '\0';
                p.m_oct = atoi(buf);
        }
        Return is;
}

Pitch::Pitch(String s) : m_pc(0), m_acc(0), m_oct(0) {
        If ((m_pc = isPitchClass(*s)) == -1)
                Return;

        Integer acc = 0;
        While ((acc = isAccidental(*++s)) != -3) {
                m_acc += acc;
        }

        If (*s == 0)
                Return;
        Else
                m_oct = atoi(s);
}