/*
- vertical-align-grav.cc -- implement Vertical_align_engraver
+ vertical-align-engraver.cc -- implement Vertical_align_engraver
source file of the GNU LilyPond music typesetter
- (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "translator-group.hh"
+#include "context.hh"
#include "paper-column.hh"
#include "align-interface.hh"
#include "span-bar.hh"
class Vertical_align_engraver : public Engraver
{
- Spanner * valign_p_;
- bool qualifies_b (Grob_info) const;
+ Spanner *valign_;
+ bool qualifies (Grob_info) const;
public:
- VIRTUAL_COPY_CONS(Translator);
- Vertical_align_engraver();
+ TRANSLATOR_DECLARATIONS (Vertical_align_engraver);
protected:
virtual void acknowledge_grob (Grob_info);
- virtual void initialize();
- virtual void finalize();
+ virtual void process_music ();
+ virtual void finalize ();
};
-Vertical_align_engraver::Vertical_align_engraver()
+Vertical_align_engraver::Vertical_align_engraver ()
{
- valign_p_ =0;
+ valign_ = 0;
}
void
-Vertical_align_engraver::initialize()
+Vertical_align_engraver::process_music ()
{
- valign_p_ =new Spanner (get_property ("VerticalAlignment"));
- valign_p_->set_bound(LEFT,unsmob_grob (get_property ("currentCommandColumn")));
- announce_grob (valign_p_ , 0);
+ if (!valign_)
+ {
+ valign_ = make_spanner ("VerticalAlignment", SCM_EOL);
+ valign_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn")));
+ }
}
void
-Vertical_align_engraver::finalize()
+Vertical_align_engraver::finalize ()
{
- valign_p_->set_bound(RIGHT,unsmob_grob (get_property ("currentCommandColumn")));
- typeset_grob (valign_p_);
- valign_p_ =0;
+ if (valign_)
+ {
+ valign_->set_bound (RIGHT, unsmob_grob (get_property ("currentCommandColumn")));
+ valign_ = 0;
+ }
}
-
bool
-Vertical_align_engraver::qualifies_b (Grob_info i) const
+Vertical_align_engraver::qualifies (Grob_info i) const
{
- int sz = i.origin_trans_l_arr ((Translator*)this).size() ;
+ int sz = i.origin_contexts ((Translator *)this).size ();
- return sz > 1 && Axis_group_interface::has_interface (i.elem_l_)
- && !i.elem_l_->parent_l (Y_AXIS) && Axis_group_interface::axis_b (i.elem_l_, Y_AXIS);
+ return sz > 0 && Axis_group_interface::has_interface (i.grob_)
+ && !i.grob_->get_parent (Y_AXIS) && Axis_group_interface::has_axis (i.grob_, Y_AXIS);
}
void
Vertical_align_engraver::acknowledge_grob (Grob_info i)
{
- if (qualifies_b (i))
+ if (qualifies (i))
{
- Align_interface::add_element (valign_p_,i.elem_l_, get_property ("verticalAlignmentChildCallback"));
+ Align_interface::add_element (valign_, i.grob_, get_property ("verticalAlignmentChildCallback"));
}
}
-ADD_THIS_TRANSLATOR(Vertical_align_engraver);
+ADD_TRANSLATOR (Vertical_align_engraver,
+ /* descr */ "Catch Vertical axis groups and stack them.",
+ /* creats*/ "VerticalAlignment",
+ /* accepts */ "",
+ /* acks */ "axis-group-interface",
+ /* reads */ "",
+ /* write */ "");