X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgrob.cc;h=828ae7f07b40687457f8031475f0a42d9992dc67;hb=32a34dcef0c0041c6d62677487a380b5c8b85712;hp=3ff7b5df468f3cbf59211a43b5a4bb9db596cb23;hpb=e1fd8890eae91be854e84b120893af257dc8daca;p=lilypond.git diff --git a/lily/grob.cc b/lily/grob.cc index 3ff7b5df46..828ae7f07b 100644 --- a/lily/grob.cc +++ b/lily/grob.cc @@ -1,9 +1,20 @@ /* - grob.cc -- implement Grob + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 1997--2012 Han-Wen Nienhuys - (c) 1997--2006 Han-Wen Nienhuys + LilyPond is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + LilyPond is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . */ #include "grob.hh" @@ -11,6 +22,7 @@ #include #include "align-interface.hh" +#include "axis-group-interface.hh" #include "input.hh" #include "international.hh" #include "item.hh" @@ -19,6 +31,7 @@ #include "music.hh" #include "output-def.hh" #include "pointer-group-interface.hh" +#include "program-option.hh" #include "stencil.hh" #include "stream-event.hh" #include "system.hh" @@ -27,16 +40,14 @@ #include "ly-smobs.icc" Grob * -Grob::clone (int count) const +Grob::clone () const { - return new Grob (*this, count); + return new Grob (*this); } -Grob::Grob (SCM basicprops, - Object_key const *key) +Grob::Grob (SCM basicprops) { - key_ = key; - + /* FIXME: default should be no callback. */ self_scm_ = SCM_EOL; layout_ = 0; @@ -45,45 +56,48 @@ Grob::Grob (SCM basicprops, immutable_property_alist_ = basicprops; mutable_property_alist_ = SCM_EOL; object_alist_ = SCM_EOL; - + /* We do smobify_self () as the first step. Since the object lives on the heap, none of its SCM variables are protected from GC. After smobify_self (), they are. */ smobify_self (); - /* - We always get a new key object for a new grob. - */ - if (key_) - ((Object_key *)key_)->unprotect (); - SCM meta = get_property ("meta"); if (scm_is_pair (meta)) - interfaces_ = scm_cdr (scm_assq (ly_symbol2scm ("interfaces"), meta)); - + { + interfaces_ = scm_cdr (scm_assq (ly_symbol2scm ("interfaces"), meta)); + + SCM object_cbs = scm_assq (ly_symbol2scm ("object-callbacks"), meta); + if (scm_is_pair (object_cbs)) + { + for (SCM s = scm_cdr (object_cbs); scm_is_pair (s); s = scm_cdr (s)) + set_object (scm_caar (s), scm_cdar (s)); + } + } + if (get_property_data ("X-extent") == SCM_EOL) set_property ("X-extent", Grob::stencil_width_proc); if (get_property_data ("Y-extent") == SCM_EOL) set_property ("Y-extent", Grob::stencil_height_proc); } -Grob::Grob (Grob const &s, int copy_index) +Grob::Grob (Grob const &s) : dim_cache_ (s.dim_cache_) { - key_ = (use_object_keys) ? new Copied_key (s.key_, copy_index) : 0; original_ = (Grob *) & s; self_scm_ = SCM_EOL; immutable_property_alist_ = s.immutable_property_alist_; - mutable_property_alist_ = ly_deep_copy (s.mutable_property_alist_); + mutable_property_alist_ = SCM_EOL; interfaces_ = s.interfaces_; object_alist_ = SCM_EOL; layout_ = 0; smobify_self (); - if (key_) - ((Object_key *)key_)->unprotect (); + + mutable_property_alist_ = ly_deep_copy (s.mutable_property_alist_); + } Grob::~Grob () @@ -112,37 +126,60 @@ Grob::get_print_stencil () const if (Stencil *m = unsmob_stencil (stil)) { retval = *m; - if (to_boolean (get_property ("transparent"))) - retval = Stencil (m->extent_box (), SCM_EOL); + bool transparent = to_boolean (get_property ("transparent")); + + if (transparent) + retval = Stencil (m->extent_box (), SCM_EOL); else - { - SCM expr = m->expr (); - expr = scm_list_3 (ly_symbol2scm ("grob-cause"), - self_scm (), expr); + { + SCM expr = m->expr (); + expr = scm_list_3 (ly_symbol2scm ("grob-cause"), + self_scm (), expr); - retval = Stencil (m->extent_box (), expr); - } + retval = Stencil (m->extent_box (), expr); + } SCM rot = get_property ("rotation"); if (scm_is_pair (rot)) - { - Real angle = scm_to_double (scm_car (rot)); - Real x = scm_to_double (scm_cadr (rot)); - Real y = scm_to_double (scm_caddr (rot)); + { + Real angle = scm_to_double (scm_car (rot)); + Real x = scm_to_double (scm_cadr (rot)); + Real y = scm_to_double (scm_caddr (rot)); - retval.rotate (angle, Offset (x, y)); - } + retval.rotate_degrees (angle, Offset (x, y)); + } /* color support... see interpret_stencil_expression () for more... */ SCM color = get_property ("color"); if (scm_is_pair (color)) - { - SCM expr = scm_list_3 (ly_symbol2scm ("color"), - color, - retval.expr ()); - - retval = Stencil (retval.extent_box (), expr); - } + { + SCM expr = scm_list_3 (ly_symbol2scm ("color"), + color, + retval.expr ()); + + retval = Stencil (retval.extent_box (), expr); + } + + /* process whiteout */ + /* a grob has to be visible, otherwise the whiteout property has no effect */ + if (!transparent && to_boolean (get_property ("whiteout"))) + { + /* Call the scheme procedure stencil-whiteout in scm/stencils.scm */ + /* to add a round-filled-box stencil to the stencil list */ + retval + = *unsmob_stencil (scm_call_1 (ly_lily_module_constant ("stencil-whiteout"), + retval.smobbed_copy ())); + } + + SCM id = get_property ("id"); + if (scm_is_string (id)) + { + SCM expr = scm_list_3 (ly_symbol2scm ("id"), + id, + retval.expr ()); + + retval = Stencil (retval.extent_box (), expr); + } } @@ -168,6 +205,16 @@ Grob::get_system () const return 0; } +/* This version of get_system is more reliable than this->get_system () + before line-breaking has been done, at which point there is only + one system in the whole score and we can find it just by following + parent pointers. */ +System * +Grob::get_system (Grob *me) +{ + Grob *p = me->get_parent (X_AXIS); + return p ? get_system (p) : dynamic_cast(me); +} void Grob::handle_broken_dependencies () @@ -182,7 +229,7 @@ Grob::handle_broken_dependencies () properties, and a special function fixes FOO */ { for (SCM s = object_alist_; scm_is_pair (s); s = scm_cdr (s)) - sp->substitute_one_mutable_property (scm_caar (s), scm_cdar (s)); + sp->substitute_one_mutable_property (scm_caar (s), scm_cdar (s)); } System *system = get_system (); @@ -231,7 +278,7 @@ Grob::handle_prebroken_dependencies () { Item *it = dynamic_cast (this); substitute_object_links (scm_from_int (it->break_status_dir ()), - original ()->object_alist_); + original ()->object_alist_); } } @@ -250,14 +297,14 @@ Grob::translate_axis (Real y, Axis a) { if (isinf (y) || isnan (y)) { - programming_error (_ ("Infinity or NaN encountered")); - return ; + programming_error ("Infinity or NaN encountered"); + return; } - + if (!dim_cache_[a].offset_) dim_cache_[a].offset_ = new Real (y); else - *dim_cache_[a].offset_ += y; + *dim_cache_[a].offset_ += y; } /* Find the offset relative to D. If D equals THIS, then it is 0. @@ -267,7 +314,8 @@ Grob::translate_axis (Real y, Axis a) Real Grob::relative_coordinate (Grob const *refp, Axis a) const { - if (refp == this) + /* eaa - hmmm, should we do a programming_error() here? */ + if ((this == NULL) || (refp == this)) return 0.0; /* We catch PARENT_L_ == nil case with this, but we crash if we did @@ -275,7 +323,7 @@ Grob::relative_coordinate (Grob const *refp, Axis a) const Real off = get_offset (a); if (refp == dim_cache_[a].parent_) return off; - + off += dim_cache_[a].parent_->relative_coordinate (refp, a); return off; @@ -290,16 +338,23 @@ Grob::pure_relative_y_coordinate (Grob const *refp, int start, int end) Real off = 0; if (dim_cache_[Y_AXIS].offset_) - off = *dim_cache_[Y_AXIS].offset_; + { + if (to_boolean (get_property ("pure-Y-offset-in-progress"))) + programming_error ("cyclic chain in pure-Y-offset callbacks"); + + off = *dim_cache_[Y_AXIS].offset_; + } else { SCM proc = get_property_data ("Y-offset"); dim_cache_[Y_AXIS].offset_ = new Real (0.0); + set_property ("pure-Y-offset-in-progress", SCM_BOOL_T); off = robust_scm2double (call_pure_function (proc, - scm_list_1 (self_scm ()), - start, end), - 0.0); + scm_list_1 (self_scm ()), + start, end), + 0.0); + del_property ("pure-Y-offset-in-progress"); delete dim_cache_[Y_AXIS].offset_; dim_cache_[Y_AXIS].offset_ = 0; } @@ -313,7 +368,7 @@ Grob::pure_relative_y_coordinate (Grob const *refp, int start, int end) { Real trans = 0; if (Align_interface::has_interface (p) && !dim_cache_[Y_AXIS].offset_) - trans = Align_interface::get_pure_child_y_translation (p, this, start, end); + trans = Align_interface::get_pure_child_y_translation (p, this, start, end); return off + trans + p->pure_relative_y_coordinate (refp, start, end); } @@ -353,7 +408,7 @@ Grob::maybe_pure_coordinate (Grob const *refp, Axis a, bool pure, int start, int if (pure && a != Y_AXIS) programming_error ("tried to get pure X-offset"); return (pure && a == Y_AXIS) ? pure_relative_y_coordinate (refp, start, end) - : relative_coordinate (refp, a); + : relative_coordinate (refp, a); } /**************************************************************** @@ -366,18 +421,17 @@ Grob::flush_extent_cache (Axis axis) if (dim_cache_[axis].extent_) { /* - Ugh, this is not accurate; will flush property, causing - callback to be called if. + Ugh, this is not accurate; will flush property, causing + callback to be called if. */ del_property ((axis == X_AXIS) ? ly_symbol2scm ("X-extent") : ly_symbol2scm ("Y-extent")); delete dim_cache_[axis].extent_; dim_cache_[axis].extent_ = 0; if (get_parent (axis)) - get_parent (axis)->flush_extent_cache (axis); + get_parent (axis)->flush_extent_cache (axis); } } - Interval Grob::extent (Grob *refp, Axis a) const { @@ -390,41 +444,41 @@ Grob::extent (Grob *refp, Axis a) const else { /* - Order is significant: ?-extent may trigger suicide. + Order is significant: ?-extent may trigger suicide. */ - SCM ext_sym = - (a == X_AXIS) - ? ly_symbol2scm ("X-extent") - : ly_symbol2scm ("Y-extent"); + SCM ext_sym + = (a == X_AXIS) + ? ly_symbol2scm ("X-extent") + : ly_symbol2scm ("Y-extent"); SCM ext = internal_get_property (ext_sym); if (is_number_pair (ext)) - real_ext.unite (ly_scm2interval (ext)); + real_ext.unite (ly_scm2interval (ext)); - SCM min_ext_sym = - (a == X_AXIS) - ? ly_symbol2scm ("minimum-X-extent") - : ly_symbol2scm ("minimum-Y-extent"); + SCM min_ext_sym + = (a == X_AXIS) + ? ly_symbol2scm ("minimum-X-extent") + : ly_symbol2scm ("minimum-Y-extent"); SCM min_ext = internal_get_property (min_ext_sym); if (is_number_pair (min_ext)) - real_ext.unite (ly_scm2interval (min_ext)); + real_ext.unite (ly_scm2interval (min_ext)); - ((Grob*)this)->dim_cache_[a].extent_ = new Interval (real_ext); + ((Grob *)this)->dim_cache_[a].extent_ = new Interval (real_ext); } - - real_ext.translate (offset); - + + // We never want nan, so we avoid shifting infinite values. + for (LEFT_and_RIGHT (d)) + if (!isinf (real_ext[d])) + real_ext[d] += offset; + return real_ext; } Interval Grob::pure_height (Grob *refp, int start, int end) { - SCM proc = get_property_data ( ly_symbol2scm ("Y-extent")); - Interval iv = robust_scm2interval (call_pure_function (proc, - scm_list_1 (self_scm ()), - start, end), - Interval (0, 0)); + SCM iv_scm = get_pure_property ("Y-extent", start, end); + Interval iv = robust_scm2interval (iv_scm, Interval (0, 0)); Real offset = pure_relative_y_coordinate (refp, start, end); SCM min_ext = get_property ("minimum-Y-extent"); @@ -435,24 +489,36 @@ Grob::pure_height (Grob *refp, int start, int end) if (!iv.is_empty () && is_number_pair (min_ext)) iv.unite (ly_scm2interval (min_ext)); - iv.translate (offset); + if (!iv.is_empty ()) + iv.translate (offset); return iv; } Interval Grob::maybe_pure_extent (Grob *refp, Axis a, bool pure, int start, int end) { - if (pure && a != Y_AXIS) - programming_error ("tried to get pure width"); return (pure && a == Y_AXIS) ? pure_height (refp, start, end) : extent (refp, a); } Interval_t -Grob::spanned_rank_iv () +Grob::spanned_rank_interval () const { return Interval_t (-1, 0); } +bool +Grob::pure_is_visible (int /* start */, int /* end */) const +{ + return true; +} + +/* Sort grobs according to their starting column. */ +bool +Grob::less (Grob *g1, Grob *g2) +{ + return g1->spanned_rank_interval ()[LEFT] < g2->spanned_rank_interval ()[LEFT]; +} + /**************************************************************** REFPOINTS ****************************************************************/ @@ -461,15 +527,39 @@ Grob::spanned_rank_iv () Grob * Grob::common_refpoint (Grob const *s, Axis a) const { - /* I don't like the quadratic aspect of this code, but I see no - other way. The largest chain of parents might be 10 high or so, - so it shouldn't be a real issue. */ - for (Grob const *c = this; c; c = c->dim_cache_[a].parent_) - for (Grob const *d = s; d; d = d->dim_cache_[a].parent_) - if (d == c) - return (Grob *) d; - return 0; + /* Catching the trivial cases is likely costlier than just running + through: one can't avoid going to the respective chain ends + anyway. We might save the second run through when the chain ends + differ, but keeping track of the ends makes the loop more costly. + */ + + int balance = 0; + Grob const *c; + Grob const *d; + + for (c = this; c; ++balance) + c = c->dim_cache_[a].parent_; + + for (d = s; d; --balance) + d = d->dim_cache_[a].parent_; + + /* Cut down ancestry to same size */ + + for (c = this; balance > 0; --balance) + c = c->dim_cache_[a].parent_; + + for (d = s; balance < 0; ++balance) + d = d->dim_cache_[a].parent_; + + /* Now find point where our lineages converge */ + while (c != d) + { + c = c->dim_cache_[a].parent_; + d = d->dim_cache_[a].parent_; + } + + return (Grob *) c; } void @@ -484,7 +574,6 @@ Grob::get_parent (Axis a) const return dim_cache_[a].parent_; } - void Grob::fixup_refpoint () { @@ -494,37 +583,131 @@ Grob::fixup_refpoint () Grob *parent = get_parent (ax); if (!parent) - continue; + continue; if (parent->get_system () != get_system () && get_system ()) - { - Grob *newparent = parent->find_broken_piece (get_system ()); - set_parent (newparent, ax); - } + { + Grob *newparent = parent->find_broken_piece (get_system ()); + set_parent (newparent, ax); + } if (Item *i = dynamic_cast (this)) - { - Item *parenti = dynamic_cast (parent); - - if (parenti && i) - { - Direction my_dir = i->break_status_dir (); - if (my_dir != parenti->break_status_dir ()) - { - Item *newparent = parenti->find_prebroken_piece (my_dir); - set_parent (newparent, ax); - } - } - } + { + Item *parenti = dynamic_cast (parent); + + if (parenti && i) + { + Direction my_dir = i->break_status_dir (); + if (my_dir != parenti->break_status_dir ()) + { + Item *newparent = parenti->find_prebroken_piece (my_dir); + set_parent (newparent, ax); + } + } + } } } +/**************************************************************** + VERTICAL ORDERING +****************************************************************/ + +Grob * +get_maybe_root_vertical_alignment (Grob *g, Grob *maybe) +{ + if (!g) + return maybe; + if (Align_interface::has_interface (g)) + return get_maybe_root_vertical_alignment (g->get_parent (Y_AXIS), g); + return get_maybe_root_vertical_alignment (g->get_parent (Y_AXIS), maybe); + +} + +Grob * +Grob::get_root_vertical_alignment (Grob *g) +{ + return get_maybe_root_vertical_alignment (g, 0); +} + +Grob * +Grob::get_vertical_axis_group (Grob *g) +{ + if (!g) + return 0; + if (!g->get_parent (Y_AXIS)) + return 0; + if (Axis_group_interface::has_interface (g) + && Align_interface::has_interface (g->get_parent (Y_AXIS))) + return g; + return get_vertical_axis_group (g->get_parent (Y_AXIS)); + +} + +int +Grob::get_vertical_axis_group_index (Grob *g) +{ + Grob *val = get_root_vertical_alignment (g); + if (!val) + return -1; + Grob *vax = get_vertical_axis_group (g); + extract_grob_set (val, "elements", elts); + for (vsize i = 0; i < elts.size (); i++) + if (elts[i] == vax) + return (int) i; + g->programming_error ("could not find this grob's vertical axis group in the vertical alignment"); + return -1; +} + +bool +Grob::vertical_less (Grob *g1, Grob *g2) +{ + return internal_vertical_less (g1, g2, false); +} + +bool +Grob::pure_vertical_less (Grob *g1, Grob *g2) +{ + return internal_vertical_less (g1, g2, true); +} + +bool +Grob::internal_vertical_less (Grob *g1, Grob *g2, bool pure) +{ + Grob *vag = get_root_vertical_alignment (g1); + if (!vag) + { + g1->programming_error ("grob does not belong to a VerticalAlignment?"); + return false; + } + + Grob *ag1 = get_vertical_axis_group (g1); + Grob *ag2 = get_vertical_axis_group (g2); + + extract_grob_set (vag, "elements", elts); + + if (ag1 == ag2 && !pure) + { + Grob *common = g1->common_refpoint (g2, Y_AXIS); + return g1->relative_coordinate (common, Y_AXIS) > g2->relative_coordinate (common, Y_AXIS); + } + + for (vsize i = 0; i < elts.size (); i++) + { + if (elts[i] == ag1) + return true; + if (elts[i] == ag2) + return false; + } + + g1->programming_error ("could not place this grob in its axis group"); + return false; +} /**************************************************************** MESSAGES ****************************************************************/ void -Grob::warning (string s) const +Grob::programming_error (string s) const { SCM cause = self_scm (); while (Grob *g = unsmob_grob (cause)) @@ -532,115 +715,116 @@ Grob::warning (string s) const /* ES TODO: cause can't be Music*/ if (Music *m = unsmob_music (cause)) - m->origin ()->warning (s); + m->origin ()->programming_error (s); else if (Stream_event *ev = unsmob_stream_event (cause)) - ev->origin ()->warning (s); + ev->origin ()->programming_error (s); else - ::warning (s); -} - - -string -Grob::name () const -{ - SCM meta = get_property ("meta"); - SCM nm = scm_assq (ly_symbol2scm ("name"), meta); - nm = (scm_is_pair (nm)) ? scm_cdr (nm) : SCM_EOL; - return scm_is_symbol (nm) ? ly_symbol2string (nm) : this->class_name (); + ::programming_error (s); } void -Grob::programming_error (string s) const +Grob::warning (string s) const { SCM cause = self_scm (); while (Grob *g = unsmob_grob (cause)) cause = g->get_property ("cause"); - s = _f ("programming error: %s", s); - /* ES TODO: cause can't be Music*/ if (Music *m = unsmob_music (cause)) - m->origin ()->message (s); + m->origin ()->warning (s); else if (Stream_event *ev = unsmob_stream_event (cause)) ev->origin ()->warning (s); else - ::message (s); + ::warning (s); } +string +Grob::name () const +{ + SCM meta = get_property ("meta"); + SCM nm = scm_assq (ly_symbol2scm ("name"), meta); + nm = (scm_is_pair (nm)) ? scm_cdr (nm) : SCM_EOL; + return scm_is_symbol (nm) ? ly_symbol2string (nm) : this->class_name (); +} ADD_INTERFACE (Grob, - "A grob represents a piece of music notation\n" - "\n" - "All grobs have an X and Y-position on the page. These X and Y positions\n" - "are stored in a relative format, so they can easily be combined by\n" - "stacking them, hanging one grob to the side of another, and coupling\n" - "them into a grouping objects.\n" - "\n" - "Each grob has a reference point (a.k.a. parent): the position of a grob\n" - "is stored relative to that reference point. For example the X-reference\n" - "point of a staccato dot usually is the note head that it applies\n" - "to. When the note head is moved, the staccato dot moves along\n" - "automatically.\n" - "\n" - "A grob is often associated with a symbol, but some grobs do not print\n" - "any symbols. They take care of grouping objects. For example, there is a\n" - "separate grob that stacks staves vertically. The @ref{NoteCollision}\n" - "is also an abstract grob: it only moves around chords, but doesn't print\n" - "anything.\n" - "\n" - "Grobs have a properties: Scheme variables, that can be read and set. " - "They have two types. Immutable variables " - "define the default style and behavior. They are shared between many objects. " - "They can be changed using @code{\\override} and @code{\\revert}. " - "\n\n" - "Mutable properties are variables that are specific to one grob. Typically, " - "lists of other objects, or results from computations are stored in" - "mutable properties: every call to set-grob-property (or its C++ equivalent) " - "sets a mutable property. " - "\n\n" - "The properties @code{after-line-breaking} and @code{before-line-breaking} " - "are dummies that are not user-serviceable. " - - , - - /* properties */ - "X-extent " - "X-offset " - "Y-extent " - "Y-offset " - "after-line-breaking " - "avoid-slur " - "axis-group-parent-X " - "axis-group-parent-Y " - "before-line-breaking " - "cause " - "color " - "extra-X-extent " - "extra-Y-extent " - "extra-offset " - "interfaces " - "layer " - "meta " - "minimum-X-extent " - "minimum-Y-extent " - "outside-staff-padding " - "outside-staff-priority " - "rotation " - "springs-and-rods " - "staff-symbol " - "stencil " - "transparent " - ); - - - - + "A grob represents a piece of music notation.\n" + "\n" + "All grobs have an X and Y@tie{}position on the page. These" + " X and Y@tie{}positions are stored in a relative format, thus" + " they can easily be combined by stacking them, hanging one" + " grob to the side of another, or coupling them into grouping" + " objects.\n" + "\n" + "Each grob has a reference point (a.k.a.@: parent): The" + " position of a grob is stored relative to that reference" + " point. For example, the X@tie{}reference point of a staccato" + " dot usually is the note head that it applies to. When the" + " note head is moved, the staccato dot moves along" + " automatically.\n" + "\n" + "A grob is often associated with a symbol, but some grobs do" + " not print any symbols. They take care of grouping objects." + " For example, there is a separate grob that stacks staves" + " vertically. The @ref{NoteCollision} object is also an" + " abstract grob: It only moves around chords, but doesn't print" + " anything.\n" + "\n" + "Grobs have properties (Scheme variables) that can be read and" + " set. Two types of them exist: immutable and mutable." + " Immutable variables define the default style and behavior." + " They are shared between many objects. They can be changed" + " using @code{\\override} and @code{\\revert}. Mutable" + " properties are variables that are specific to one grob." + " Typically, lists of other objects, or results from" + " computations are stored in mutable properties. In" + " particular, every call to @code{ly:grob-set-property!}" + " (or its C++ equivalent) sets a mutable property.\n" + "\n" + "The properties @code{after-line-breaking} and" + " @code{before-line-breaking} are dummies that are not" + " user-serviceable.", + + /* properties */ + "X-extent " + "X-offset " + "Y-extent " + "Y-offset " + "after-line-breaking " + "avoid-slur " + "axis-group-parent-X " + "axis-group-parent-Y " + "before-line-breaking " + "cause " + "color " + "cross-staff " + "id " + "extra-X-extent " + "extra-Y-extent " + "extra-offset " + "footnote-music " + "forced-spacing " + "interfaces " + "layer " + "meta " + "minimum-X-extent " + "minimum-Y-extent " + "outside-staff-horizontal-padding " + "outside-staff-padding " + "outside-staff-priority " + "pure-Y-offset-in-progress " + "rotation " + "springs-and-rods " + "staff-symbol " + "stencil " + "transparent " + "whiteout " + ); /**************************************************************** CALLBACKS ****************************************************************/ - static SCM grob_stencil_extent (Grob *me, Axis a) { @@ -651,7 +835,6 @@ grob_stencil_extent (Grob *me, Axis a) return ly_interval2scm (e); } - MAKE_SCHEME_CALLBACK (Grob, stencil_height, 1); SCM Grob::stencil_height (SCM smob) @@ -660,7 +843,7 @@ Grob::stencil_height (SCM smob) return grob_stencil_extent (me, Y_AXIS); } -MAKE_SCHEME_CALLBACK(Grob, y_parent_positioning, 1); +MAKE_SCHEME_CALLBACK (Grob, y_parent_positioning, 1); SCM Grob::y_parent_positioning (SCM smob) { @@ -672,13 +855,12 @@ Grob::y_parent_positioning (SCM smob) return scm_from_double (0.0); } - -MAKE_SCHEME_CALLBACK(Grob, x_parent_positioning, 1); +MAKE_SCHEME_CALLBACK (Grob, x_parent_positioning, 1); SCM Grob::x_parent_positioning (SCM smob) { Grob *me = unsmob_grob (smob); - + Grob *par = me->get_parent (X_AXIS); if (par) (void) par->get_property ("positioning-done"); @@ -694,34 +876,29 @@ Grob::stencil_width (SCM smob) return grob_stencil_extent (me, X_AXIS); } - - Grob * common_refpoint_of_list (SCM elist, Grob *common, Axis a) { for (; scm_is_pair (elist); elist = scm_cdr (elist)) if (Grob *s = unsmob_grob (scm_car (elist))) { - if (common) - common = common->common_refpoint (s, a); - else - common = s; + if (common) + common = common->common_refpoint (s, a); + else + common = s; } return common; } Grob * -common_refpoint_of_array (vector const &arr, Grob *common, Axis a) +common_refpoint_of_array (vector const &arr, Grob *common, Axis a) { - for (vsize i = arr.size (); i--;) - if (Grob *s = arr[i]) - { - if (common) - common = common->common_refpoint (s, a); - else - common = s; - } + for (vsize i = 0; i < arr.size (); i++) + if (common) + common = common->common_refpoint (arr[i], a); + else + common = arr[i]; return common; } @@ -736,3 +913,18 @@ robust_relative_extent (Grob *me, Grob *refpoint, Axis a) return ext; } +// Checks whether there is a vertical alignment in the chain of +// parents between this and commony. +bool +Grob::check_cross_staff (Grob *commony) +{ + if (Align_interface::has_interface (commony)) + return true; + + for (Grob *g = this; g && g != commony; g = g->get_parent (Y_AXIS)) + if (Align_interface::has_interface (g)) + return true; + + return false; +} +