2 command-request.hh -- declare Non musical requests
4 source file of the 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 struct Command_req : virtual Request {
19 REQUESTMETHODS(Command_req, command);
21 virtual Measure_grouping_req * measuregrouping() { return 0; }
22 virtual Clef_change_req * clefchange() { return 0; }
23 virtual Key_change_req * keychange() { return 0; }
24 virtual Partial_measure_req * partial() { return 0; }
25 virtual Meter_change_req * meterchange() { return 0; }
26 virtual Bar_req *bar() { return 0; }
27 virtual Cadenza_req *cadenza() { return 0; }
28 virtual Timing_req*timing() { return 0; }
32 /** Baseclass for meter/partial req. It has to be handled by
33 Staff_{walker,column} baseclass. */
34 struct Timing_req : Command_req {
35 REQUESTMETHODS(Timing_req, timing);
39 struct Partial_measure_req : Timing_req {
42 Partial_measure_req(Moment);
43 REQUESTMETHODS(Partial_measure_req, partial);
49 struct Meter_change_req : Timing_req {
50 int beats_i_, one_beat_i_;
52 int compare(Meter_change_req const&);
55 REQUESTMETHODS(Meter_change_req, meterchange);
58 /// toggle Cadenza mode
59 struct Cadenza_req : Timing_req {
63 REQUESTMETHODS(Cadenza_req,cadenza);
66 /// check if we're at start of a measure.
67 struct Barcheck_req : Timing_req {
69 REQUESTMETHODS(Barcheck_req,barcheck);
72 struct Measure_grouping_req: Timing_req {
73 Array<int> beat_i_arr_;
74 Array<Moment> elt_length_arr_;
76 REQUESTMETHODS(Measure_grouping_req, measuregrouping);
79 struct Group_change_req : Command_req {
81 REQUESTMETHODS(Group_change_req, groupchange);
84 /** draw a (repeat)-bar. This something different than #Barcheck_req#,
85 the latter should only happen at the start of a measure. */
86 struct Bar_req : Command_req {
89 int compare(const Bar_req&)const;
90 REQUESTMETHODS(Bar_req,bar);
92 struct Terminate_voice_req : Command_req {
93 REQUESTMETHODS(Terminate_voice_req,terminate);
96 struct Group_feature_req : Command_req {
99 REQUESTMETHODS(Group_feature_req, groupfeature);
105 Routines for sharps and flats are separated,
106 so that caller may identify non-conventional keys.
108 struct Key_change_req : Command_req {
109 Array<Melodic_req*> melodic_p_arr_;
113 Key_change_req(Key_change_req const&);
115 REQUESTMETHODS(Key_change_req, keychange);
117 /// return number of flats in key
120 /// return number of sharps in key
123 void transpose(Melodic_req const & d) const;
128 struct Clef_change_req : Command_req {
130 Clef_change_req(String);
131 REQUESTMETHODS(Clef_change_req, clefchange);
134 #endif // COMMANDREQUEST_HH