X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fseparation-item.cc;h=5c9eb9ef10439826317203c17eee4547fc60988e;hb=574e4c93281ca502cb4d6719ef75bb5304e8b40a;hp=b990ad61fbcf147aa81c9126b15ef98ee43ac2e8;hpb=f2c2c5c43858f323e4708f83fd97e0f38017c275;p=lilypond.git diff --git a/lily/separation-item.cc b/lily/separation-item.cc index b990ad61fb..5c9eb9ef10 100644 --- a/lily/separation-item.cc +++ b/lily/separation-item.cc @@ -3,11 +3,16 @@ source file of the GNU LilyPond music typesetter - (c) 1998--2005 Han-Wen Nienhuys + (c) 1998--2007 Han-Wen Nienhuys */ #include "separation-item.hh" +#include "axis-group-interface.hh" +#include "lookup.hh" +#include "note-head.hh" +#include "stencil.hh" +#include "skyline.hh" #include "paper-column.hh" #include "warn.hh" #include "pointer-group-interface.hh" @@ -26,136 +31,137 @@ Separation_item::add_conditional_item (Grob *me, Grob *e) Pointer_group_interface::add_grob (me, ly_symbol2scm ("conditional-elements"), e); } -/* - Return the width of ME given that we are considering the object on - the LEFT. -*/ -Interval -Separation_item::conditional_width (Grob *me, Grob *left) +Real +Separation_item::set_distance (Item *l, Item *r, Real padding) { - Interval w = width (me); + Drul_array lines (Skyline_pair::unsmob (l->get_property ("horizontal-skylines")), + Skyline_pair::unsmob (r->get_property ("horizontal-skylines"))); + Skyline right = conditional_skyline (r, l); + right.merge ((*lines[RIGHT])[LEFT]); + + Real dist = padding + (*lines[LEFT])[RIGHT].distance (right); + if (dist > 0) + { + Rod rod; - Item *item = dynamic_cast (me); - Paper_column *pc = item->get_column (); + rod.item_drul_ = Drul_array (l, r); - extract_grob_set (me, "conditional-elements", elts); - for (int i = 0; i < elts.size (); i++) - { - Item *il = dynamic_cast (elts[i]); - if (pc != il->get_column ()) - { - /* this shouldn't happen, but let's continue anyway. */ - programming_error ("Separation_item: I've been drinking too much"); - continue; /*UGH UGH*/ - } - - if (to_boolean (il->get_property ("no-spacing-rods"))) - { - continue; - } - - if (Accidental_placement::has_interface (il)) - { - w.unite (Accidental_placement::get_relevant_accidental_extent (il, pc, left)); - } + rod.distance_ = dist; + rod.add_to_cols (); } - SCM pad = me->get_property ("padding"); - - w.widen (robust_scm2double (pad, 0.0)); - return w; + return max (dist, 0.0); } -Interval -Separation_item::width (Grob *me) +bool +Separation_item::is_empty (Grob *me) { - SCM sw = me->get_property ("X-extent"); - if (is_number_pair (sw)) - { - return ly_scm2interval (sw); - } - - Item *item = dynamic_cast (me); - Paper_column *pc = item->get_column (); - Interval w; - - extract_grob_set (me, "elements", elts); - for (int i = 0; i < elts.size (); i++) - { - Item *il = dynamic_cast (elts[i]); - if (pc != il->get_column ()) - { - /* this shouldn't happen, but let's continue anyway. */ - programming_error ("Separation_item: I've been drinking too much"); - continue; /*UGH UGH*/ - } - - if (to_boolean (il->get_property ("no-spacing-rods"))) - { - continue; - } - - Interval iv (il->extent (pc, X_AXIS)); - if (!iv.is_empty ()) - { - w.unite (iv); - } - } - - SCM pad = me->get_property ("padding"); - - w.widen (robust_scm2double (pad, 0.0)); - - me->set_property ("X-extent", ly_interval2scm (w)); - - return w; + Skyline_pair *sky = Skyline_pair::unsmob (me->get_property ("horizontal-skylines")); + return (!sky || sky->is_empty ()); } -Interval -Separation_item::relative_width (Grob *me, Grob *common) +/* + Return the width of ME given that we are considering the object on + the LEFT. +*/ +Skyline +Separation_item::conditional_skyline (Grob *me, Grob *left) { - Interval iv = width (me); + vector bs = boxes (me, left); + return Skyline (bs, 0.1, Y_AXIS, LEFT); +} - return dynamic_cast (me)->get_column ()->relative_coordinate (common, X_AXIS) + iv; + +MAKE_SCHEME_CALLBACK (Separation_item, calc_skylines,1); +SCM +Separation_item::calc_skylines (SCM smob) +{ + Item *me = unsmob_item (smob); + vector bs = boxes (me, 0); + /* todo: the horizon_padding is somewhat arbitrary */ + return Skyline_pair (bs, 0.1, Y_AXIS).smobbed_copy (); } -/* - Try to find the break-aligned symbol in SEPARATION_ITEM that is - sticking out at direction D. The x size is put in LAST_EXT +/* if left is non-NULL, get the boxes corresponding to the + conditional-elements (conditioned on the grob LEFT). This + sounds more general than it is: conditional-elements are + always accidentals attached to a tied note. */ -Grob * -Separation_item::extremal_break_aligned_grob (Grob *me, - Direction d, - Interval *last_ext) +vector +Separation_item::boxes (Grob *me, Grob *left) { - Grob *col = dynamic_cast (me)->get_column (); - last_ext->set_empty (); - Grob *last_grob = 0; + Item *item = dynamic_cast (me); + + int very_large = INT_MAX; + Paper_column *pc = item->get_column (); + vector out; + extract_grob_set (me, left ? "conditional-elements" : "elements", read_only_elts); + vector elts; + + if (left) + elts = Accidental_placement::get_relevant_accidentals (read_only_elts, left); + else + elts = read_only_elts; + + Grob *ycommon = common_refpoint_of_array (elts, me, Y_AXIS); - extract_grob_set (me, "elements", elts); - for (int i = elts.size (); i--; ) + for (vsize i = 0; i < elts.size (); i++) { - Grob *break_item = elts[i]; - if (!scm_is_symbol (break_item->get_property ("break-align-symbol"))) + Item *il = dynamic_cast (elts[i]); + if (pc != il->get_column ()) continue; - Interval ext = break_item->extent (col, X_AXIS); - - if (ext.is_empty ()) + /* ugh. We want to exclude groups of grobs (so that we insert each grob + individually into the skyline instead of adding a single box that + bounds all of them). However, we can't exclude an axis-group that + adds to its childrens' stencil. Currently, this is just TrillPitchGroup; + hence the check for note-head-interface. */ + if (Axis_group_interface::has_interface (il) + && !Note_head::has_interface (il)) continue; - if (!last_grob - || (last_grob && d * (ext[d]- (*last_ext)[d]) > 0)) - { - *last_ext = ext; - last_grob = break_item; - } + Interval y (il->pure_height (ycommon, 0, very_large)); + Interval x (il->extent (pc, X_AXIS)); + + Interval extra = robust_scm2interval (elts[i]->get_property ("extra-spacing-width"), + Interval (-0.1, 0.1)); + x[LEFT] += extra[LEFT]; + x[RIGHT] += extra[RIGHT]; + if (to_boolean (elts[i]->get_property ("infinite-spacing-height"))) + y = Interval (-infinity_f, infinity_f); + + if (!x.is_empty () && !y.is_empty ()) + out.push_back (Box (x, y)); } - return last_grob; + return out; } -ADD_INTERFACE (Separation_item, "separation-item-interface", - "Item that computes widths to generate spacing rods. " - "This is done in concert with @ref{separation-spanner-interface}.", - "padding X-extent conditional-elements elements"); +extern bool debug_skylines; +MAKE_SCHEME_CALLBACK (Separation_item, print, 1) +SCM +Separation_item::print (SCM smob) +{ + if (!debug_skylines) + return SCM_BOOL_F; + + Grob *me = unsmob_grob (smob); + Stencil ret; + if (Skyline_pair *s = Skyline_pair::unsmob (me->get_property ("horizontal-skylines"))) + { + ret.add_stencil (Lookup::points_to_line_stencil (0.1, (*s)[LEFT].to_points (Y_AXIS)).in_color (255, 255, 0)); + ret.add_stencil (Lookup::points_to_line_stencil (0.1, (*s)[RIGHT].to_points (Y_AXIS)).in_color (0, 255, 255)); + } + return ret.smobbed_copy (); +} + +ADD_INTERFACE (Separation_item, + "Item that computes widths to generate spacing rods.", + + /* properties */ + "X-extent " + "conditional-elements " + "elements " + "padding " + "horizontal-skylines " + );