source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "translator-group.hh"
#include "paper-column.hh"
class Vertical_align_engraver : public Engraver
{
- Spanner * valign_p_;
- bool qualifies_b (Score_element_info) const;
+ Spanner * valign_;
+ bool qualifies_b (Grob_info) const;
public:
- VIRTUAL_COPY_CONS(Translator);
- Vertical_align_engraver();
+ TRANSLATOR_DECLARATIONS(Vertical_align_engraver);
protected:
- virtual void acknowledge_element (Score_element_info);
- virtual void do_creation_processing();
- virtual void do_removal_processing();
+ virtual void acknowledge_grob (Grob_info);
+ 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::do_creation_processing()
+Vertical_align_engraver::process_music ()
{
- valign_p_ =new Spanner (get_property ("VerticalAlignment"));
- valign_p_->set_bound(LEFT,unsmob_element (get_property ("currentCommandColumn")));
- announce_element (valign_p_ , 0);
+ if (!valign_)
+ {
+ valign_ =make_spanner ("VerticalAlignment");
+ valign_->set_bound (LEFT,unsmob_grob (get_property ("currentCommandColumn")));
+ announce_grob (valign_ , SCM_EOL);
+ }
}
void
-Vertical_align_engraver::do_removal_processing()
+Vertical_align_engraver::finalize ()
{
- valign_p_->set_bound(RIGHT,unsmob_element (get_property ("currentCommandColumn")));
- typeset_element (valign_p_);
- valign_p_ =0;
+ if (valign_)
+ {
+ valign_->set_bound (RIGHT,unsmob_grob (get_property ("currentCommandColumn")));
+ typeset_grob (valign_);
+ valign_ =0;
+ }
}
-
bool
-Vertical_align_engraver::qualifies_b (Score_element_info i) const
+Vertical_align_engraver::qualifies_b (Grob_info i) const
{
- int sz = i.origin_trans_l_arr ((Translator*)this).size() ;
+ int sz = i.origin_transes ((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 > 1 && Axis_group_interface::has_interface (i.grob_)
+ && !i.grob_->get_parent (Y_AXIS) && Axis_group_interface::axis_b (i.grob_, Y_AXIS);
}
void
-Vertical_align_engraver::acknowledge_element (Score_element_info i)
+Vertical_align_engraver::acknowledge_grob (Grob_info i)
{
if (qualifies_b (i))
{
- Align_interface::add_element (valign_p_,i.elem_l_);
+ Align_interface::add_element (valign_,i.grob_, get_property ("verticalAlignmentChildCallback"));
}
}
-ADD_THIS_TRANSLATOR(Vertical_align_engraver);
+
+ENTER_DESCRIPTION(Vertical_align_engraver,
+/* descr */ "Catch Vertical axis groups and stack them.",
+/* creats*/ "VerticalAlignment",
+/* accepts */ "",
+/* acks */ "axis-group-interface",
+/* reads */ "",
+/* write */ "");