release: 0.1.1

[lilypond.git] / lily / include / spanner.hh

diff --git a/lily/include/spanner.hh b/lily/include/spanner.hh
index 3bb547b528e1898401a8049128fa1b05e684cc6d..30a72290c0e5dc42035e1550559d97d005548214 100644 (file)
--- a/lily/include/spanner.hh
+++ b/lily/include/spanner.hh
@@ -1,5 +1,5 @@
 /*
-  spanner.hh -- part of LilyPond
+  spanner.hh -- part of GNU LilyPond
 
   (c) 1996,97 Han-Wen Nienhuys
 */
@@ -7,48 +7,53 @@
 #ifndef SPANNER_HH
 #define SPANNER_HH
 
-#include "proto.hh"
-#include "staff-elem.hh"
+#include "lily-proto.hh"
+#include "score-elem.hh"
 
-
-/** a symbol which is attached between two columns. A spanner is a symbol which spans across several columns, so its
-  final appearance can only be calculated after the breaking problem
-  is solved.
+/** a symbol which is attached between two columns. A spanner is a
+  symbol which spans across several columns, so its final appearance
+  can only be calculated after the breaking problem is solved.
 
   Examples
 
-  - (de)crescendo
-  - slur
-  - beam
-  - bracket
+  \begin{itemize}
+  \item (de)crescendo
+  \item slur
+  \item beam
+  \item bracket
+  \end{itemize}
   
 
   Spanner should know about the items which it should consider:
-    e.g. slurs should be steep enough to "enclose" all those items. This
-    is absolutely necessary for beams, since they have to adjust the
-    length of stems of notes they encompass.
+  e.g. slurs should be steep enough to "enclose" all those items. This
+  is absolutely necessary for beams, since they have to adjust the
+  length of stems of notes they encompass.
 
-    */
-struct Spanner:Staff_elem {
+  */
+class Spanner:public virtual Score_elem {
+public:
     PCol *left_col_l_, *right_col_l_;
-
     
     /* *************** */
-    
+    DECLARE_MY_RUNTIME_TYPEINFO;
+    virtual Spanner* spanner() { return this; }    
     Spanner();
-    virtual Interval width()const;
-    void do_print()const;
-
-    Spanner *broken_at(PCol *c1,  PCol *c2) const;
-    virtual Spanner* spanner() { return this; }
+    bool broken_b() const;
+    Spanner* find_broken_piece(Line_of_score*)const;
 protected:
+    void set_my_columns();
+    SCORE_ELEM_CLONE(Spanner);
 
     /**
-  clone a piece of  this spanner.
-    PRE
-    c1 >= start, c2  <= stop
-    */
-    virtual Spanner *do_break_at( PCol *c1,  PCol *c2) const=0;
-    NAME_MEMBERS(Spanner);
+      this is virtual; for instance, Line_of_score overrides it.
+     */
+    virtual void break_into_pieces(bool);
+
+    Link_array<Spanner> broken_into_l_arr_;
+       
+    virtual void do_break_processing();
+    virtual Interval do_width()const;
+    virtual void do_print()const;
+    virtual Line_of_score*line_l()const;
 };
 #endif