2 command-request.hh -- declare non-musical requests
4 source file of the GNU LilyPond music typesetter
6 (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
10 #ifndef COMMANDREQUEST_HH
11 #define COMMANDREQUEST_HH
15 #include "duration.hh"
17 /** Request which are assumed to be "happening" before the
19 class Command_req : public virtual Request {
21 REQUESTMETHODS(Command_req, command);
22 virtual Measure_grouping_req * measuregrouping() { return 0; }
23 virtual Clef_change_req * clefchange() { return 0; }
24 virtual Key_change_req * keychange() { return 0; }
25 virtual Partial_measure_req * partial() { return 0; }
26 virtual Meter_change_req * meterchange() { return 0; }
27 virtual Bar_req *bar() { return 0; }
28 virtual Cadenza_req *cadenza() { return 0; }
29 virtual Disallow_break_req *disallowbreak() { return 0; }
30 virtual Timing_req*timing() { return 0; }
31 virtual Command_script_req*commandscript() { return 0;}
35 class Command_script_req : public Command_req, public Script_req {
39 ~Command_script_req();
40 REQUESTMETHODS(Command_script_req, commandscript);
44 class Disallow_break_req : public Command_req {
46 REQUESTMETHODS(Disallow_break_req, disallowbreak);
50 /** Baseclass for meter/partial req. It has to be handled by
51 Staff_{walker,column} baseclass. */
52 class Timing_req : public Command_req {
54 REQUESTMETHODS(Timing_req, timing);
55 virtual Tempo_req * tempo(){return 0; }
59 class Tempo_req : public Timing_req
66 REQUESTMETHODS(Tempo_req, tempo);
67 bool do_equal_b (Request *) const;
70 class Partial_measure_req : public Timing_req {
74 Partial_measure_req (Moment);
75 REQUESTMETHODS(Partial_measure_req, partial);
76 bool do_equal_b (Request*) const;
82 class Meter_change_req : public Timing_req {
84 int beats_i_, one_beat_i_;
88 bool do_equal_b (Request*) const;
89 REQUESTMETHODS(Meter_change_req, meterchange);
92 /// toggle Cadenza mode
93 class Cadenza_req : public Timing_req {
97 bool do_equal_b (Request*) const;
99 REQUESTMETHODS(Cadenza_req,cadenza);
102 /// check if we're at start of a measure.
103 class Barcheck_req : public Timing_req {
105 bool do_equal_b (Request *) const;
106 REQUESTMETHODS(Barcheck_req,barcheck);
109 class Measure_grouping_req : public Timing_req {
111 Array<int> beat_i_arr_;
112 Array<Moment> elt_length_arr_;
113 bool do_equal_b (Request *) const;
114 REQUESTMETHODS(Measure_grouping_req, measuregrouping);
117 /** draw a (repeat)-bar. This something different than #Barcheck_req#,
118 the latter should only happen at the start of a measure. */
119 class Bar_req : public Command_req {
123 bool do_equal_b (Request*) const;
125 REQUESTMETHODS(Bar_req,bar);
131 Routines for sharps and flats are separated,
132 so that caller may identify non-conventional keys.
134 class Key_change_req : public Command_req {
136 Array<Melodic_req*> melodic_p_arr_;
139 /// don't ignore the octaves in #melodic_p_arr_#?
140 bool multi_octave_b_;
142 Key_change_req (Key_change_req const&);
144 REQUESTMETHODS(Key_change_req, keychange);
146 /// squash the octaves to 1
147 void squash_octaves();
148 /// return number of flats in key
151 /// return number of sharps in key
154 void transpose (Melodic_req const * d) const;
159 class Clef_change_req : public Command_req {
162 Clef_change_req (String);
163 REQUESTMETHODS(Clef_change_req, clefchange);
166 #endif // COMMANDREQUEST_HH