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 Terminate_voice_req *terminate() {return 0;}
22 virtual Group_change_req * groupchange() { return 0;}
23 virtual Group_feature_req * groupfeature() { return 0; }
24 virtual Measure_grouping_req * measuregrouping() { return 0; }
25 virtual Clef_change_req * clefchange() { return 0; }
26 virtual Key_change_req * keychange() { return 0; }
27 virtual Partial_measure_req * partial() { return 0; }
28 virtual Meter_change_req * meterchange() { return 0; }
29 virtual Bar_req *bar() { return 0; }
30 virtual Cadenza_req *cadenza() { return 0; }
31 virtual Timing_req*timing() { return 0; }
32 virtual Command_script_req*commandscript() { return 0;}
36 class Command_script_req : public Command_req, public Script_req {
38 REQUESTMETHODS(Command_script_req, commandscript);
43 /** Baseclass for meter/partial req. It has to be handled by
44 Staff_{walker,column} baseclass. */
45 class Timing_req : public Command_req {
47 REQUESTMETHODS(Timing_req, timing);
51 class Partial_measure_req : public Timing_req {
55 Partial_measure_req(Moment);
56 REQUESTMETHODS(Partial_measure_req, partial);
62 class Meter_change_req : public Timing_req {
64 int beats_i_, one_beat_i_;
66 int compare(Meter_change_req const&);
69 REQUESTMETHODS(Meter_change_req, meterchange);
72 /// toggle Cadenza mode
73 class Cadenza_req : public Timing_req {
78 REQUESTMETHODS(Cadenza_req,cadenza);
81 /// check if we're at start of a measure.
82 class Barcheck_req : public Timing_req {
85 REQUESTMETHODS(Barcheck_req,barcheck);
88 class Measure_grouping_req : public Timing_req {
90 Array<int> beat_i_arr_;
91 Array<Moment> elt_length_arr_;
93 REQUESTMETHODS(Measure_grouping_req, measuregrouping);
96 class Group_change_req : public Command_req {
99 REQUESTMETHODS(Group_change_req, groupchange);
102 /** draw a (repeat)-bar. This something different than #Barcheck_req#,
103 the latter should only happen at the start of a measure. */
104 class Bar_req : public Command_req {
108 int compare(const Bar_req&)const;
109 REQUESTMETHODS(Bar_req,bar);
111 class Terminate_voice_req : public Command_req {
113 REQUESTMETHODS(Terminate_voice_req,terminate);
116 class Group_feature_req : public Command_req {
121 REQUESTMETHODS(Group_feature_req, groupfeature);
127 Routines for sharps and flats are separated,
128 so that caller may identify non-conventional keys.
130 class Key_change_req : public Command_req {
132 Array<Melodic_req*> melodic_p_arr_;
135 /// don't ignore the octaves in #melodic_p_arr_#?
136 bool multi_octave_b_;
138 Key_change_req(Key_change_req const&);
140 REQUESTMETHODS(Key_change_req, keychange);
142 /// squash the octaves to 1
143 void squash_octaves();
144 /// return number of flats in key
147 /// return number of sharps in key
150 void transpose(Melodic_req const & d) const;
155 class Clef_change_req : public Command_req {
158 Clef_change_req(String);
159 REQUESTMETHODS(Clef_change_req, clefchange);
162 #endif // COMMANDREQUEST_HH