X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Faxis-group-interface.cc;h=c253b4adfbb6d26402507039e19781c40a5d07c5;hb=b7a0cffbf9d1069860368f289a5b50e9d1d90ba8;hp=8f8e1b8893697f2513f93a3acb5375e081b348d1;hpb=6fb6249345ce846c8c55f843b21c6e85024a720b;p=lilypond.git diff --git a/lily/axis-group-interface.cc b/lily/axis-group-interface.cc index 8f8e1b8893..c253b4adfb 100644 --- a/lily/axis-group-interface.cc +++ b/lily/axis-group-interface.cc @@ -1,23 +1,36 @@ /* - axis-group-interface.cc -- implement Axis_group_interface + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 2000--2009 Han-Wen Nienhuys - (c) 2000--2007 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 "axis-group-interface.hh" #include "align-interface.hh" #include "directional-element-interface.hh" -#include "pointer-group-interface.hh" #include "grob-array.hh" #include "hara-kiri-group-spanner.hh" #include "international.hh" #include "lookup.hh" #include "paper-column.hh" #include "paper-score.hh" +#include "pointer-group-interface.hh" #include "separation-item.hh" +#include "skyline-pair.hh" +#include "staff-grouper-interface.hh" #include "stencil.hh" #include "system.hh" #include "warn.hh" @@ -73,26 +86,46 @@ Axis_group_interface::relative_group_extent (vector const &elts, return r; } +Interval +Axis_group_interface::cached_pure_height (Grob *me, int start, int end) +{ + Interval iv = begin_of_line_pure_height (me, start); + iv.unite (rest_of_line_pure_height (me, start, end)); -/* - FIXME: pure extent handling has a lot of ad-hoc caching. - This should be done with grob property callbacks. + return iv; +} - --hwn -*/ +Interval +Axis_group_interface::rest_of_line_pure_height (Grob *me, int start, int end) +{ + SCM adjacent_pure_heights = me->get_property ("adjacent-pure-heights"); + + if (!scm_is_pair (adjacent_pure_heights) + || !scm_is_vector (scm_cdr (adjacent_pure_heights))) + return Interval (0, 0); + + return combine_pure_heights (me, scm_cdr (adjacent_pure_heights), start, end); +} Interval -Axis_group_interface::cached_pure_height (Grob *me, int start, int end) +Axis_group_interface::begin_of_line_pure_height (Grob *me, int start) +{ + SCM adjacent_pure_heights = me->get_property ("adjacent-pure-heights"); + + if (!scm_is_pair (adjacent_pure_heights) + || !scm_is_vector (scm_car (adjacent_pure_heights))) + return Interval (0, 0); + + return combine_pure_heights (me, scm_car (adjacent_pure_heights), start, start+1); +} + +Interval +Axis_group_interface::combine_pure_heights (Grob *me, SCM measure_extents, int start, int end) { Paper_score *ps = get_root_system (me)->paper_score (); vector breaks = ps->get_break_indices (); vector cols = ps->get_columns (); - SCM extents = me->get_property ("adjacent-pure-heights"); - - if (!scm_is_vector (extents)) - return Interval (0, 0); - Interval ext; for (vsize i = 0; i + 1 < breaks.size (); i++) { @@ -101,12 +134,19 @@ Axis_group_interface::cached_pure_height (Grob *me, int start, int end) break; if (r >= start) - ext.unite (ly_scm2interval (scm_c_vector_ref (extents, i))); + ext.unite (ly_scm2interval (scm_c_vector_ref (measure_extents, i))); } return ext; } +// adjacent-pure-heights is a pair of vectors, each of which has one element +// for every measure in the score. The first vector stores, for each measure, +// the combined height of the elements that are present only when the bar +// is at the beginning of a line. The second vector stores, for each measure, +// the combined height of the elements that are present only when the bar +// is not at the beginning of a line. + MAKE_SCHEME_CALLBACK (Axis_group_interface, adjacent_pure_heights, 1) SCM Axis_group_interface::adjacent_pure_heights (SCM smob) @@ -121,13 +161,16 @@ Axis_group_interface::adjacent_pure_heights (SCM smob) vector breaks = ps->get_break_indices (); vector cols = ps->get_columns (); - SCM ret = scm_c_make_vector (breaks.size () - 1, SCM_EOL); + SCM begin_line_heights = scm_c_make_vector (breaks.size () - 1, SCM_EOL); + SCM mid_line_heights = scm_c_make_vector (breaks.size () - 1, SCM_EOL); + vsize it_index = 0; for (vsize i = 0; i + 1 < breaks.size (); i++) { int start = Paper_column::get_rank (cols[breaks[i]]); int end = Paper_column::get_rank (cols[breaks[i+1]]); - Interval iv; + Interval begin_line_iv; + Interval mid_line_iv; for (vsize j = it_index; j < items.size (); j++) { @@ -138,8 +181,10 @@ Axis_group_interface::adjacent_pure_heights (SCM smob) && !to_boolean (it->get_property ("cross-staff"))) { Interval dims = items[j]->pure_height (common, start, end); + Interval &target_iv = start == it->get_column ()->get_rank () ? begin_line_iv : mid_line_iv; + if (!dims.is_empty ()) - iv.unite (dims); + target_iv.unite (dims); } if (rank < end) @@ -155,14 +200,16 @@ Axis_group_interface::adjacent_pure_heights (SCM smob) && !to_boolean (spanners[j]->get_property ("cross-staff"))) { Interval dims = spanners[j]->pure_height (common, start, end); + if (!dims.is_empty ()) - iv.unite (dims); + mid_line_iv.unite (dims); } } - scm_vector_set_x (ret, scm_from_int (i), ly_interval2scm (iv)); + scm_vector_set_x (begin_line_heights, scm_from_int (i), ly_interval2scm (begin_line_iv)); + scm_vector_set_x (mid_line_heights, scm_from_int (i), ly_interval2scm (mid_line_iv)); } - return ret; + return scm_cons (begin_line_heights, mid_line_heights); } Interval @@ -385,26 +432,33 @@ Axis_group_interface::calc_pure_elts_and_common (Grob *me) return common; } -MAKE_SCHEME_CALLBACK (Axis_group_interface, calc_x_common, 1); SCM -Axis_group_interface::calc_x_common (SCM grob) +Axis_group_interface::calc_common (Grob *me, Axis axis) { - Grob *me = unsmob_grob (grob); - extract_grob_set (me, "elements", elts); - Grob *common = common_refpoint_of_array (elts, me, X_AXIS); + Grob *common = common_refpoint_of_array (elts, me, axis); + if (!common) + { + me->programming_error ("No common parent found in calc_common axis."); + return SCM_EOL; + } + return common->self_scm (); } + +MAKE_SCHEME_CALLBACK (Axis_group_interface, calc_x_common, 1); +SCM +Axis_group_interface::calc_x_common (SCM grob) +{ + return calc_common (unsmob_grob (grob), X_AXIS); +} + MAKE_SCHEME_CALLBACK (Axis_group_interface, calc_y_common, 1); SCM Axis_group_interface::calc_y_common (SCM grob) { - Grob *me = unsmob_grob (grob); - - extract_grob_set (me, "elements", elts); - Grob *common = common_refpoint_of_array (elts, me, Y_AXIS); - return common->self_scm (); + return calc_common (unsmob_grob (grob), Y_AXIS); } Interval @@ -546,7 +600,7 @@ add_grobs_of_one_priority (Skyline_pair *const skylines, b.translate (Offset (0, dir*dist)); elements[i]->translate_axis (dir*dist, Y_AXIS); } - (*skylines)[dir].insert (b, 0, X_AXIS); + skylines->insert (b, 0, X_AXIS); elements[i]->set_property ("outside-staff-priority", SCM_BOOL_F); last_affected_position[dir] = b[X_AXIS][RIGHT]; } @@ -559,9 +613,27 @@ add_grobs_of_one_priority (Skyline_pair *const skylines, } } +// TODO: it is tricky to correctly handle skyline placement of cross-staff grobs. +// For example, cross-staff beams cannot be formatted until the distance between +// staves is known and therefore any grobs that depend on the beam cannot be placed +// until the skylines are known. On the other hand, the distance between staves should +// really depend on position of the cross-staff grobs that lie between them. +// Currently, we just leave cross-staff grobs out of the +// skyline altogether, but this could mean that staves are placed so close together +// that there is no room for the cross-staff grob. It also means, of course, that +// we don't get the benefits of skyline placement for cross-staff grobs. Skyline_pair Axis_group_interface::skyline_spacing (Grob *me, vector elements) { + /* For grobs with an outside-staff-priority, the sorting function might + call extent and cause suicide. This breaks the contract that is required + for the STL sort function. To avoid this, we make sure that any suicides + are triggered beforehand. + */ + for (vsize i = 0; i < elements.size (); i++) + if (scm_is_number (elements[i]->get_property ("outside-staff-priority"))) + elements[i]->extent (elements[i], X_AXIS); + vector_sort (elements, staff_priority_less); Grob *x_common = common_refpoint_of_array (elements, me, X_AXIS); Grob *y_common = common_refpoint_of_array (elements, me, Y_AXIS); @@ -574,19 +646,27 @@ Axis_group_interface::skyline_spacing (Grob *me, vector elements) Skyline_pair skylines; for (i = 0; i < elements.size () && !scm_is_number (elements[i]->get_property ("outside-staff-priority")); i++) - add_boxes (elements[i], x_common, y_common, &boxes, &skylines); + if (!to_boolean (elements[i]->get_property ("cross-staff"))) + add_boxes (elements[i], x_common, y_common, &boxes, &skylines); SCM padding_scm = me->get_property ("skyline-horizontal-padding"); Real padding = robust_scm2double (padding_scm, 0.1); skylines.merge (Skyline_pair (boxes, padding, X_AXIS)); for (; i < elements.size (); i++) { + if (to_boolean (elements[i]->get_property ("cross-staff"))) + continue; + SCM priority = elements[i]->get_property ("outside-staff-priority"); vector current_elts; current_elts.push_back (elements[i]); while (i + 1 < elements.size () && scm_eq_p (elements[i+1]->get_property ("outside-staff-priority"), priority)) - current_elts.push_back (elements[++i]); + { + if (!to_boolean (elements[i+1]->get_property ("cross-staff"))) + current_elts.push_back (elements[i+1]); + ++i; + } add_grobs_of_one_priority (&skylines, current_elts, x_common, y_common); } @@ -594,22 +674,6 @@ Axis_group_interface::skyline_spacing (Grob *me, vector elements) return skylines; } -MAKE_SCHEME_CALLBACK (Axis_group_interface, calc_max_stretch, 1) -SCM -Axis_group_interface::calc_max_stretch (SCM smob) -{ - Grob *me = unsmob_grob (smob); - Real ret = 0; - extract_grob_set (me, "elements", elts); - - for (vsize i = 0; i < elts.size (); i++) - if (Axis_group_interface::has_interface (elts[i])) - ret += robust_scm2double (elts[i]->get_property ("max-stretch"), 0.0); - - return scm_from_double (ret); -} - -extern bool debug_skylines; MAKE_SCHEME_CALLBACK (Axis_group_interface, print, 1) SCM Axis_group_interface::print (SCM smob) @@ -621,26 +685,69 @@ Axis_group_interface::print (SCM smob) Stencil ret; if (Skyline_pair *s = Skyline_pair::unsmob (me->get_property ("vertical-skylines"))) { - ret.add_stencil (Lookup::points_to_line_stencil (0.1, (*s)[UP].to_points (X_AXIS)).in_color (255, 0, 255)); - ret.add_stencil (Lookup::points_to_line_stencil (0.1, (*s)[DOWN].to_points (X_AXIS)).in_color (0, 255, 255)); + ret.add_stencil (Lookup::points_to_line_stencil (0.1, (*s)[UP].to_points (X_AXIS)) + .in_color (255, 0, 255)); + ret.add_stencil (Lookup::points_to_line_stencil (0.1, (*s)[DOWN].to_points (X_AXIS)) + .in_color (0, 255, 255)); } return ret.smobbed_copy (); } +MAKE_SCHEME_CALLBACK (Axis_group_interface, calc_next_staff_spacing, 1) +SCM +Axis_group_interface::calc_next_staff_spacing (SCM smob) +{ + Grob *me = unsmob_grob (smob); + Grob *grouper = unsmob_grob (me->get_object ("staff-grouper")); + + if (grouper) + { + Grob *last_in_group = Staff_grouper_interface::get_last_grob (grouper); + if (me == last_in_group) + return grouper->get_property ("after-last-staff-spacing"); + else + return grouper->get_property ("between-staff-spacing"); + } + return me->get_property ("default-next-staff-spacing"); +} + +Real +Axis_group_interface::minimum_distance (Grob *g1, Grob *g2, Axis a) +{ + SCM sym = ly_symbol2scm ((a == Y_AXIS) ? "vertical-skylines" : "horizontal-skylines"); + + Skyline_pair *s1 = Skyline_pair::unsmob (g1->get_property (sym)); + Skyline_pair *s2 = Skyline_pair::unsmob (g2->get_property (sym)); + if (s1 && s2) + return (*s1)[DOWN].distance ((*s2)[UP]); + return 0; +} + ADD_INTERFACE (Axis_group_interface, "An object that groups other layout objects.", + // TODO: some of these properties are specific to + // VerticalAxisGroup. We should split off a + // vertical-axis-group-interface. /* properties */ "X-common " "Y-common " "adjacent-pure-heights " "axes " + "default-next-staff-spacing " "elements " + "inter-loose-line-spacing " + "inter-staff-spacing " "keep-fixed-while-stretching " "max-stretch " + "non-affinity-spacing " + "next-staff-spacing " "no-alignment " "pure-Y-common " "pure-relevant-items " "pure-relevant-spanners " + "staff-affinity " + "staff-grouper " + "system-Y-offset " "vertical-skylines " );