diff options
Diffstat (limited to 'request.hh')
| -rw-r--r-- | request.hh | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/request.hh b/request.hh index 8ebb1468c0..04664966b3 100644 --- a/request.hh +++ b/request.hh @@ -1,4 +1,4 @@ -// mpp96's second egg of columbus! +// LilyPond's second egg of columbus! #ifndef REQUEST_HH #define REQUEST_HH @@ -7,17 +7,19 @@ /// a voice element wants something printed struct Request { - Voice_element*elt; + Voice_element*elt; // indirection. /****************/ virtual void print()const ; virtual Note_req *note() {return 0;} + virtual Stem_req *stem() {return 0;} virtual Rest_req *rest() {return 0;} virtual Rhythmic_req*rhythmic() { return 0;} Request(Voice_element*); Request(); virtual Real duration() const { return 0.0; } + virtual Request* clone() const =0; }; /** @@ -45,7 +47,7 @@ struct Request { that voice. After #Staff# made up her mind (Would #Staff# be a smart - name? How about #struct Lily {}# :-), the resultant items and + name? How about #struct Susan {}# :-), the resultant items and spanners are put on the PScore, and pointers to these items are stored in the #Voice_element#. This construction enables the beams/stems to look up the balls it has to connect to. */ @@ -62,6 +64,7 @@ struct Rhythmic_req : Request { Rhythmic_req(Voice_element*); Rhythmic_req*rhythmic() { return this;} void print ()const; + Request*clone() const; }; /// Put a note of specified type, height, and with accidental on the staff. @@ -78,6 +81,7 @@ struct Note_req : Rhythmic_req { Note_req(Voice_element*v); Note_req*note() { return this;} virtual void print() const; + Request*clone() const; }; /** Staff has to decide if the ball should be hanging left or right. This @@ -95,11 +99,22 @@ struct Rest_req : Rhythmic_req { void print()const; Rest_req(Voice_element*v) : Rhythmic_req(v) { } Rest_req * rest() { return this;} + Request*clone() const ; }; /** Why a request? It might be a good idea to not typeset the rest, if the paper is too crowded. */ +/// attach a stem to the noteball +struct Stem_req : Request { + /// 4,8,16, .. + int stem_number; + virtual Stem_req *stem() {return this;} + Stem_req(Voice_element*v, int s) : Request(v) { stem_number = s; } + Request*clone() const; +}; + + #if 0 ///Put a lyric above or below (?) this staff. @@ -136,11 +151,6 @@ enum Loudness { FFF, FF, F, MF, MP, P, PP, PPP } ; -/// attach a stem to the noteball -struct Stem_req : Request { - /// 4,8,16, .. - int stem_number ; -}; /// requests to start or stop something. struct Span_req : Request { /// should the spanner start or stop, or is it unwanted? |