2 command-request.hh -- declare non-musical requests
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1998 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 Timing_req*timing() { return 0; }
30 virtual Command_script_req*commandscript() { return 0;}
31 virtual Break_req *linebreak () { return 0; }
35 class Break_req : public Command_req {
37 enum { DISALLOW = -10000, FORCE = 10000 };
40 REQUESTMETHODS (Break_req, linebreak);
43 class Command_script_req : public Command_req, public Script_req {
47 ~Command_script_req();
48 REQUESTMETHODS(Command_script_req, commandscript);
51 /** Baseclass for meter/partial req. It has to be handled by
52 Staff_{walker,column} baseclass. */
53 class Timing_req : public Command_req {
55 REQUESTMETHODS(Timing_req, timing);
56 virtual Tempo_req * tempo(){return 0; }
60 class Tempo_req : public Timing_req
67 REQUESTMETHODS(Tempo_req, tempo);
68 bool do_equal_b (Request *) const;
71 class Partial_measure_req : public Timing_req {
75 Partial_measure_req (Moment);
76 REQUESTMETHODS(Partial_measure_req, partial);
77 bool do_equal_b (Request*) const;
83 class Meter_change_req : public Timing_req {
85 int beats_i_, one_beat_i_;
89 bool do_equal_b (Request*) const;
90 REQUESTMETHODS(Meter_change_req, meterchange);
93 /// toggle Cadenza mode
94 class Cadenza_req : public Timing_req {
98 bool do_equal_b (Request*) const;
100 REQUESTMETHODS(Cadenza_req,cadenza);
103 /// check if we're at start of a measure.
104 class Barcheck_req : public Timing_req {
106 bool do_equal_b (Request *) const;
107 REQUESTMETHODS(Barcheck_req,barcheck);
110 class Measure_grouping_req : public Timing_req {
112 Array<int> beat_i_arr_;
113 Array<Moment> elt_length_arr_;
114 bool do_equal_b (Request *) const;
115 REQUESTMETHODS(Measure_grouping_req, measuregrouping);
118 /** draw a (repeat)-bar. This something different than #Barcheck_req#,
119 the latter should only happen at the start of a measure. */
120 class Bar_req : public Command_req {
124 bool do_equal_b (Request*) const;
126 REQUESTMETHODS(Bar_req,bar);
132 Routines for sharps and flats are separated,
133 so that caller may identify non-conventional keys.
135 class Key_change_req : public Command_req {
137 Array<Melodic_req*> melodic_p_arr_;
140 /// don't ignore the octaves in #melodic_p_arr_#?
141 bool multi_octave_b_;
143 Key_change_req (Key_change_req const&);
145 REQUESTMETHODS(Key_change_req, keychange);
147 /// squash the octaves to 1
148 void squash_octaves();
149 /// return number of flats in key
152 /// return number of sharps in key
155 void transpose (Melodic_req const * d) const;
160 class Clef_change_req : public Command_req {
163 Clef_change_req (String);
164 REQUESTMETHODS(Clef_change_req, clefchange);
167 #endif // COMMANDREQUEST_HH