unrolled_xml_tree_browser Class Reference

An xml tree browser that "unroll" the score. More...

#include <unrolled_xml_tree_browser.h>

Inheritance diagram for unrolled_xml_tree_browser:

Public Member Functions
	unrolled_xml_tree_browser (basevisitor *v)
virtual void	visitStart (Sxmlelement &elt)
virtual void	visitStart (S_measure &elt)
virtual void	visitStart (S_ending &elt)
virtual void	visitStart (S_repeat &elt)
virtual void	visitStart (S_part &elt)
virtual void	visitStart (S_sound &elt)
virtual void	browse (xmlelement &t)
virtual void	forwardBrowse (xmlelement &t)
virtual void	enter (xmlelement &t)
virtual void	leave (xmlelement &t)
Public Member Functions inherited from visitor< Sxmlelement >
virtual void	visitEnd (Sxmlelement &elt)
Public Member Functions inherited from visitor< S_measure >
virtual void	visitEnd (S_measure &elt)
Public Member Functions inherited from visitor< S_ending >
virtual void	visitEnd (S_ending &elt)
Public Member Functions inherited from visitor< S_repeat >
virtual void	visitEnd (S_repeat &elt)
Public Member Functions inherited from visitor< S_part >
virtual void	visitEnd (S_part &elt)
Public Member Functions inherited from visitor< S_sound >
virtual void	visitEnd (S_sound &elt)

Protected Attributes
basevisitor *	fVisitor
ctree< xmlelement >::literator	fFirstMeasure
	the first measure iterator
ctree< xmlelement >::literator	fForwardRepeat
	the forward repeat location
ctree< xmlelement >::literator	fEndIterator
	indicates the end of to visit
ctree< xmlelement >::literator	fNextIterator
	indicates the next elt to visit
ctree< xmlelement >::literator	fSegnoIterator
	the segno location
ctree< xmlelement >::literator	fCodaIterator
	the segno location
ctree< xmlelement >::literator *	fStoreIterator
	a pointer to store the current iterator
int	fStoreDelay
	an iterations counter for delayed store

Detailed Description

To "unroll" the score, structural information denoted by repeat, ending, coda and segno signs is interpreted and the score is visited similarly to a musician that would play the score ie: for example a section repeated twice is visited twice.

The unrolled_xml_tree_browser makes use of iterators collected along the visit and makes arbitrary jumps to these iterators to modify the tree visit. These iterators are expected to contains S_measure iterators only. This is ensured by the visit(S_part) method.

When visiting measures, forwarding the visit to the embedded visitor depends on the current state. In particular, it is verified that the current time a given measure is played corresponds to the expected time (if any), and that we're not currently jumping to a coda, which location could be unknown at the time of the jump.

Todo:

Management of multiple jump and sound ForwardRepeat attribute.

Member Function Documentation

browse()

virtual void browse ( xmlelement &  t )

virtual

Implements browser< xmlelement >.

visitStart() [1/6]

virtual void visitStart ( S_ending &  elt )

virtual

Reimplemented from visitor< S_ending >.

visitStart() [2/6]

virtual void visitStart ( S_measure &  elt )

virtual

Reimplemented from visitor< S_measure >.

visitStart() [3/6]

virtual void visitStart ( S_part &  elt )

virtual

Reimplemented from visitor< S_part >.

visitStart() [4/6]

virtual void visitStart ( S_repeat &  elt )

virtual

Reimplemented from visitor< S_repeat >.

visitStart() [5/6]

virtual void visitStart ( S_sound &  elt )

virtual

Reimplemented from visitor< S_sound >.

visitStart() [6/6]

virtual void visitStart ( Sxmlelement &  elt )

virtual

Reimplemented from visitor< Sxmlelement >.