source file of the GNU LilyPond music typesetter
- (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "axis-group-engraver.hh"
-#include "axis-group-spanner.hh"
+#include "spanner.hh"
#include "paper-column.hh"
#include "axis-group-interface.hh"
+#include "engraver.hh"
+#include "engraver-group-engraver.hh"
+#include "warn.hh"
+#include "context.hh"
+
+/**
+ Put stuff in a Spanner with an Axis_group_interface.
+ Use as last element of a context.
+ */
+class Axis_group_engraver : public Engraver
+{
+protected:
+ Spanner *staffline_;
+ Link_array<Grob> elts_;
+ virtual void process_music ();
+ virtual void finalize ();
+ virtual void acknowledge_grob (Grob_info);
+ virtual void process_acknowledged_grobs ();
+ virtual Spanner* get_spanner () ;
+ virtual void add_element (Grob*) ;
+public:
+ TRANSLATOR_DECLARATIONS (Axis_group_engraver);
+};
Axis_group_engraver::Axis_group_engraver ()
{
- staffline_p_ = 0;
+ staffline_ = 0;
}
void
-Axis_group_engraver::do_creation_processing ()
+Axis_group_engraver::process_music ()
{
- staffline_p_ = get_spanner_p ();
- axis_group (staffline_p_).set_axes (Y_AXIS, Y_AXIS);
- staffline_p_->set_bound(LEFT,get_staff_info().command_pcol_l ());
- announce_element (Score_element_info (staffline_p_, 0));
-}
+ if (!staffline_)
+ {
+ staffline_ = get_spanner ();
+
+ Grob * it = unsmob_grob (get_property ("currentCommandColumn"));
-Axis_group_spanner*
-Axis_group_engraver::get_spanner_p () const
+ staffline_->set_bound (LEFT,it);
+ }
+}
+
+Spanner*
+Axis_group_engraver::get_spanner ()
{
- return new Axis_group_spanner;
+ return make_spanner ("VerticalAxisGroup", SCM_EOL);
}
+
+/*
+ TODO: should we junk minimumVerticalExtent/extraVerticalExtent ?
+ */
+
void
-Axis_group_engraver::do_removal_processing ()
+Axis_group_engraver::finalize ()
{
- staffline_p_->set_bound(RIGHT,get_staff_info().command_pcol_l ());
- typeset_element (staffline_p_);
- staffline_p_ = 0;
+ if (!staffline_)
+ return ;
+
+ String type = context ()->context_name ();
+ SCM dims = get_property ("verticalExtent");
+
+ if (is_number_pair (dims))
+ staffline_->set_extent (dims, Y_AXIS);
+
+ dims = get_property ("minimumVerticalExtent");
+ if (is_number_pair (dims) )
+ staffline_->set_property ("minimum-Y-extent", dims);
+
+ dims = get_property ("extraVerticalExtent");
+ if (is_number_pair (dims))
+ staffline_->set_property ("extra-Y-extent", dims);
+
+ Grob * it = unsmob_grob (get_property ("currentCommandColumn"));
+
+ staffline_->set_bound (RIGHT,it);
+
+ staffline_ = 0;
}
void
-Axis_group_engraver::acknowledge_element (Score_element_info i)
+Axis_group_engraver::acknowledge_grob (Grob_info i)
{
- elts_.push (i.elem_l_);
+ elts_.push (i.grob_);
}
+/*
+ maybe should check if our parent is set, because we now get a
+ cyclic parent relationship if we have two Axis_group_engravers in
+ the context. */
void
-Axis_group_engraver::process_acknowledged ()
+Axis_group_engraver::process_acknowledged_grobs ()
{
- /* UGH UGH UGH */
+ if (!staffline_)
+ return ;
+
for (int i=0; i < elts_.size (); i++)
{
- Score_element *par = elts_[i]->parent_l (Y_AXIS);
- if (!par || !axis_group (par).has_interface_b ())
- axis_group (staffline_p_).add_element (elts_[i]);
+ Grob *par = elts_[i]->get_parent (Y_AXIS);
+
+ if (!par || !Axis_group_interface::has_interface (par))
+ {
+ if (staffline_->get_parent (Y_AXIS)
+ && staffline_->get_parent (Y_AXIS) == elts_[i])
+ {
+ String msg = _("Axis_group_engraver: vertical group already has a parent.\n"
+ "Do you have two Axis_group_engravers?\n"
+ "Killing this vertical group.");
+ staffline_->warning (msg);
+ staffline_->suicide ();
+ staffline_ = 0;
+ break ;
+ }
+ else if (elts_[i]->is_empty (Y_AXIS))
+ {
+ /*
+ We have to do _something_, otherwise staff objects will
+ end up with System as parent.
+
+ */
+ elts_[i]->set_parent (staffline_, Y_AXIS);
+ }
+ else
+ add_element (elts_[i]);
+ }
}
elts_.clear ();
}
-ADD_THIS_TRANSLATOR(Axis_group_engraver);
+void
+Axis_group_engraver::add_element (Grob*e)
+{
+ Axis_group_interface::add_element (staffline_, e);
+}
+
+/****************************************************************/
+
+/*
+
+ maybenot such a good idea after all., to put class declarations in
+ .cc
+
+*/
+
+#include "hara-kiri-group-spanner.hh"
+#include "rhythmic-head.hh"
+
+class Hara_kiri_engraver : public Axis_group_engraver
+{
+protected:
+ virtual Spanner*get_spanner ();
+ virtual void acknowledge_grob (Grob_info);
+ virtual void add_element (Grob *e);
+public:
+ TRANSLATOR_DECLARATIONS (Hara_kiri_engraver);
+};
+
+void
+Hara_kiri_engraver::add_element (Grob*e)
+{
+ Hara_kiri_group_spanner::add_element (staffline_, e);
+}
+
+
+Spanner*
+Hara_kiri_engraver::get_spanner ()
+{
+ Spanner * sp = make_spanner ("RemoveEmptyVerticalGroup", SCM_EOL);
+
+ return sp;
+}
+
+void
+Hara_kiri_engraver::acknowledge_grob (Grob_info i)
+{
+ Axis_group_engraver::acknowledge_grob (i);
+ if (staffline_
+ && (i.grob_->internal_has_interface (ly_symbol2scm ("rhythmic-grob-interface"))
+ || i.grob_->internal_has_interface (ly_symbol2scm ("lyric-interface")))
+ )
+ {
+ Hara_kiri_group_spanner::add_interesting_item (staffline_, i.grob_);
+ }
+}
+
+
+Hara_kiri_engraver::Hara_kiri_engraver ()
+{
+}
+
+ENTER_DESCRIPTION (Hara_kiri_engraver,
+/* descr */ "Like Axis_group_engraver, but make a hara-kiri spanner, and add "
+"interesting items (ie. note heads, lyric syllables and normal rests) ",
+/* creats*/ "RemoveEmptyVerticalGroup",
+/* accepts */ "",
+/* acks */ "grob-interface",
+/* reads */ "",
+/* write */ "");
+
+ENTER_DESCRIPTION (Axis_group_engraver,
+/* descr */ "Group all objects created in this context in a VerticalAxisGroup spanner.",
+/* creats*/ "VerticalAxisGroup",
+/* accepts */ "",
+/* acks */ "grob-interface",
+/* reads */ "verticalExtent minimumVerticalExtent extraVerticalExtent",
+/* write */ "");
projects / lilypond.git / blobdiff