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
16 /** Request which are assumed to be "happening" before the
18 class Command_req : public virtual Request {
20 REQUESTMETHODS(Command_req, command);
21 virtual Group_feature_req * groupfeature() { return 0; }
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 Timing_req*timing() { return 0; }
30 virtual Command_script_req*commandscript() { return 0;}
34 class Command_script_req : public Command_req, public Script_req {
36 REQUESTMETHODS(Command_script_req, commandscript);
41 /** Baseclass for meter/partial req. It has to be handled by
42 Staff_{walker,column} baseclass. */
43 class Timing_req : public Command_req {
45 REQUESTMETHODS(Timing_req, timing);
49 class Partial_measure_req : public Timing_req {
53 Partial_measure_req(Moment);
54 REQUESTMETHODS(Partial_measure_req, partial);
60 class Meter_change_req : public Timing_req {
62 int beats_i_, one_beat_i_;
64 int compare(Meter_change_req const&);
67 REQUESTMETHODS(Meter_change_req, meterchange);
70 /// toggle Cadenza mode
71 class Cadenza_req : public Timing_req {
76 REQUESTMETHODS(Cadenza_req,cadenza);
79 /// check if we're at start of a measure.
80 class Barcheck_req : public Timing_req {
83 REQUESTMETHODS(Barcheck_req,barcheck);
86 class Measure_grouping_req : public Timing_req {
88 Array<int> beat_i_arr_;
89 Array<Moment> elt_length_arr_;
91 REQUESTMETHODS(Measure_grouping_req, measuregrouping);
94 /** draw a (repeat)-bar. This something different than #Barcheck_req#,
95 the latter should only happen at the start of a measure. */
96 class Bar_req : public Command_req {
100 int compare(const Bar_req&)const;
101 REQUESTMETHODS(Bar_req,bar);
104 class Group_feature_req : public Command_req {
109 REQUESTMETHODS(Group_feature_req, groupfeature);
115 Routines for sharps and flats are separated,
116 so that caller may identify non-conventional keys.
118 class Key_change_req : public Command_req {
120 Array<Melodic_req*> melodic_p_arr_;
123 /// don't ignore the octaves in #melodic_p_arr_#?
124 bool multi_octave_b_;
126 Key_change_req(Key_change_req const&);
128 REQUESTMETHODS(Key_change_req, keychange);
130 /// squash the octaves to 1
131 void squash_octaves();
132 /// return number of flats in key
135 /// return number of sharps in key
138 void transpose(Melodic_req const & d) const;
143 class Clef_change_req : public Command_req {
146 Clef_change_req(String);
147 REQUESTMETHODS(Clef_change_req, clefchange);
150 #endif // COMMANDREQUEST_HH