hdr/input-music.hh

   1 /*
   2   input-music.hh -- part of LilyPond
   3
   4   (c) 1996,97 Han-Wen Nienhuys
   5 */
   6
   7 #ifndef INPUTMUSIC_HH
   8 #define INPUTMUSIC_HH
   9
  10 #include "plist.hh"
  11 #include "proto.hh"
  12 #include "voice.hh"
  13 #include "moment.hh"
  14
  15 struct Voice_list : public PointerList<Voice*> {
  16     void translate_time(Moment dt);
  17 };
  18
  19 /**
  20
  21   A set voices.
  22   Input_music is anything that can simply be regarded as/converted to
  23   a set of voices "cooperating" or independant. It has some basic
  24   characteristics that real music has too:
  25
  26   - it is rhythmic (it has a length, and can be translated horizontally)
  27   - a pitch (it can be transposed)
  28
  29   */
  30 struct Input_music {
  31     virtual Voice_list convert()const=0;
  32     void check_plet(Voice_element* velt_l);
  33     virtual Moment length()const=0;
  34     virtual void translate_time(Moment dt)=0;
  35     virtual ~Input_music(){}
  36     virtual void print() const =0;
  37     virtual void set_default_group(String)=0;
  38     virtual bool find_plet_start_bo(char c, Moment& moment_r) = 0;
  39     virtual void set_plet_backwards(Moment& now_moment_r, Moment until_moment, int num_i, int den_i) = 0;
  40     // virtual void transpose(...) const =0;
  41
  42
  43     virtual Input_music *clone() const = 0;
  44     virtual Simple_music *simple() { return 0; }
  45 };
  46
  47 /// Simple music consists of one voice
  48 struct Simple_music : Input_music {
  49     Voice voice_;
  50
  51     /* *** */
  52     virtual Simple_music*simple() { return this; }
  53     void add(Voice_element*);
  54     virtual void set_default_group(String g) { voice_.set_default_group(g); }
  55     virtual Moment length()const;
  56     virtual Voice_list convert()const;
  57     virtual void translate_time(Moment dt);
  58     virtual void print() const;
  59     virtual bool find_plet_start_bo(char c, Moment& moment_r);
  60     virtual void set_plet_backwards(Moment& now_moment_r, Moment until_moment, int num_i, int den_i);
  61     virtual Input_music *clone() const {
  62         return new Simple_music(*this);
  63     }
  64
  65 };
  66
  67 /// Complex_music consists of multiple voices
  68 struct Complex_music : Input_music {
  69     IPointerList<Input_music*> elts;
  70     /* *************** */
  71     virtual void set_default_group(String g);
  72     void add(Input_music*);
  73     Complex_music();
  74     Complex_music(Complex_music const &);
  75     virtual void print() const ;
  76     void concatenate(Complex_music*);
  77     virtual bool find_plet_start_bo(char c, Moment& moment_r);
  78     virtual void set_plet_backwards(Moment& now_moment_r, Moment until_moment, int num_i, int den_i);
  79
  80 };
  81
  82
  83 /**
  84   A voice like list of music.
  85
  86   different music forms which start after each other ( concatenated,
  87   stacked "horizontally )
  88
  89  */
  90
  91 struct Music_voice : Complex_music {
  92
  93
  94     /* *************** */
  95     Moment length()const;
  96     virtual void translate_time(Moment dt);
  97     virtual Voice_list convert()const;
  98     void add_elt(Voice_element*);
  99     virtual Input_music *clone() const {
 100         return new Music_voice(*this);
 101     }
 102     virtual void print() const ;
 103 };
 104
 105 /**
 106   Multiple musicstuff stacked on top of each other
 107   chord like :
 108
 109   - different music forms which start at the same time ( stacked "vertically" )
 110
 111   */
 112 struct Music_general_chord : Complex_music {
 113
 114
 115     /* *************** */
 116
 117     virtual Moment length()const;
 118     virtual Voice_list convert()const;
 119     virtual void translate_time(Moment dt);
 120     void add_elt(Voice_element*);
 121     virtual Input_music *clone() const {
 122         return new Music_general_chord(*this);
 123     }
 124
 125     virtual void print() const ;
 126 };
 127
 128 struct Multi_voice_chord : Music_general_chord {
 129     void set_default_group(String);
 130     virtual Input_music *clone() const {
 131         return new Multi_voice_chord(*this);
 132     }
 133 };
 134 struct Voice_group_chord : Music_general_chord {
 135
 136     virtual Input_music *clone() const {
 137         return new Voice_group_chord(*this);
 138     }
 139 };
 140 #endif // INPUTMUSIC_HH